diff options
Diffstat (limited to 'drivers/acpi')
232 files changed, 6998 insertions, 3823 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 4770de5707b..a34a2284100 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -31,10 +31,14 @@ menuconfig ACPI ACPI CA, see: <http://acpica.org/> - ACPI is an open industry specification co-developed by - Hewlett-Packard, Intel, Microsoft, Phoenix, and Toshiba. + ACPI is an open industry specification originally co-developed by + Hewlett-Packard, Intel, Microsoft, Phoenix, and Toshiba. Currently, + it is developed by the ACPI Specification Working Group (ASWG) under + the UEFI Forum and any UEFI member can join the ASWG and contribute + to the ACPI specification. The specification is available at: <http://www.acpi.info> + <http://www.uefi.org/acpi/specs> if ACPI @@ -43,18 +47,22 @@ config ACPI_SLEEP depends on SUSPEND || HIBERNATION default y -config ACPI_PROCFS - bool "Deprecated /proc/acpi files" +config ACPI_PROCFS_POWER + bool "Deprecated power /proc/acpi directories" depends on PROC_FS help For backwards compatibility, this option allows - deprecated /proc/acpi/ files to exist, even when - they have been replaced by functions in /sys. - - This option has no effect on /proc/acpi/ files - and functions which do not yet exist in /sys. - - Say N to delete /proc/acpi/ files that have moved to /sys/ + deprecated power /proc/acpi/ directories to exist, even when + they have been replaced by functions in /sys. + The deprecated directories (and their replacements) include: + /proc/acpi/battery/* (/sys/class/power_supply/*) + /proc/acpi/ac_adapter/* (sys/class/power_supply/*) + This option has no effect on /proc/acpi/ directories + and functions, which do not yet exist in /sys + This option, together with the proc directories, will be + deleted in the future. + + Say N to delete power /proc/acpi/ directories that have moved to /sys/ config ACPI_EC_DEBUGFS tristate "EC read/write access through /sys/kernel/debug/ec" @@ -115,7 +123,7 @@ config ACPI_BUTTON config ACPI_VIDEO tristate "Video" - depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL + depends on X86 && BACKLIGHT_CLASS_DEVICE depends on INPUT select THERMAL help @@ -343,6 +351,19 @@ config ACPI_BGRT data from the firmware boot splash. It will appear under /sys/firmware/acpi/bgrt/ . +config ACPI_REDUCED_HARDWARE_ONLY + bool "Hardware-reduced ACPI support only" if EXPERT + def_bool n + depends on ACPI + help + This config item changes the way the ACPI code is built. When this + option is selected, the kernel will use a specialized version of + ACPICA that ONLY supports the ACPI "reduced hardware" mode. The + resulting kernel will be smaller but it will also be restricted to + running in ACPI reduced hardware mode ONLY. + + If you are unsure what to do, do not enable this option. + source "drivers/acpi/apei/Kconfig" config ACPI_EXTLOG diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index 0331f91d56e..ea55e0179f8 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -39,14 +39,16 @@ acpi-y += processor_core.o acpi-y += ec.o acpi-$(CONFIG_ACPI_DOCK) += dock.o acpi-y += pci_root.o pci_link.o pci_irq.o -acpi-$(CONFIG_X86_INTEL_LPSS) += acpi_lpss.o +acpi-y += acpi_lpss.o acpi-y += acpi_platform.o +acpi-y += acpi_pnp.o acpi-y += power.o acpi-y += event.o acpi-y += sysfs.o acpi-$(CONFIG_X86) += acpi_cmos_rtc.o acpi-$(CONFIG_DEBUG_FS) += debugfs.o acpi-$(CONFIG_ACPI_NUMA) += numa.o +acpi-$(CONFIG_ACPI_PROCFS_POWER) += cm_sbs.o ifdef CONFIG_ACPI_VIDEO acpi-y += video_detect.o endif @@ -62,9 +64,9 @@ obj-$(CONFIG_ACPI_FAN) += fan.o obj-$(CONFIG_ACPI_VIDEO) += video.o obj-$(CONFIG_ACPI_PCI_SLOT) += pci_slot.o obj-$(CONFIG_ACPI_PROCESSOR) += processor.o -obj-$(CONFIG_ACPI_CONTAINER) += container.o +obj-y += container.o obj-$(CONFIG_ACPI_THERMAL) += thermal.o -obj-$(CONFIG_ACPI_HOTPLUG_MEMORY) += acpi_memhotplug.o +obj-y += acpi_memhotplug.o obj-$(CONFIG_ACPI_BATTERY) += battery.o obj-$(CONFIG_ACPI_SBS) += sbshc.o obj-$(CONFIG_ACPI_SBS) += sbs.o diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index 3c2e4aa529c..36b0e61f9c0 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -30,10 +30,14 @@ #include <linux/types.h> #include <linux/dmi.h> #include <linux/delay.h> +#ifdef CONFIG_ACPI_PROCFS_POWER +#include <linux/proc_fs.h> +#include <linux/seq_file.h> +#endif #include <linux/platform_device.h> #include <linux/power_supply.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> +#include "battery.h" #define PREFIX "ACPI: " @@ -52,26 +56,75 @@ MODULE_AUTHOR("Paul Diefenbaugh"); MODULE_DESCRIPTION("ACPI AC Adapter Driver"); MODULE_LICENSE("GPL"); + +static int acpi_ac_add(struct acpi_device *device); +static int acpi_ac_remove(struct acpi_device *device); +static void acpi_ac_notify(struct acpi_device *device, u32 event); + +static const struct acpi_device_id ac_device_ids[] = { + {"ACPI0003", 0}, + {"", 0}, +}; +MODULE_DEVICE_TABLE(acpi, ac_device_ids); + +#ifdef CONFIG_PM_SLEEP +static int acpi_ac_resume(struct device *dev); +#endif +static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume); + +#ifdef CONFIG_ACPI_PROCFS_POWER +extern struct proc_dir_entry *acpi_lock_ac_dir(void); +extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir); +static int acpi_ac_open_fs(struct inode *inode, struct file *file); +#endif + + static int ac_sleep_before_get_state_ms; +static struct acpi_driver acpi_ac_driver = { + .name = "ac", + .class = ACPI_AC_CLASS, + .ids = ac_device_ids, + .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, + .ops = { + .add = acpi_ac_add, + .remove = acpi_ac_remove, + .notify = acpi_ac_notify, + }, + .drv.pm = &acpi_ac_pm, +}; + struct acpi_ac { struct power_supply charger; - struct platform_device *pdev; + struct acpi_device * device; unsigned long long state; + struct notifier_block battery_nb; }; #define to_acpi_ac(x) container_of(x, struct acpi_ac, charger) +#ifdef CONFIG_ACPI_PROCFS_POWER +static const struct file_operations acpi_ac_fops = { + .owner = THIS_MODULE, + .open = acpi_ac_open_fs, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; +#endif + /* -------------------------------------------------------------------------- AC Adapter Management -------------------------------------------------------------------------- */ static int acpi_ac_get_state(struct acpi_ac *ac) { - acpi_status status; - acpi_handle handle = ACPI_HANDLE(&ac->pdev->dev); + acpi_status status = AE_OK; + + if (!ac) + return -EINVAL; - status = acpi_evaluate_integer(handle, "_PSR", NULL, + status = acpi_evaluate_integer(ac->device->handle, "_PSR", NULL, &ac->state); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, @@ -112,14 +165,90 @@ static enum power_supply_property ac_props[] = { POWER_SUPPLY_PROP_ONLINE, }; +#ifdef CONFIG_ACPI_PROCFS_POWER +/* -------------------------------------------------------------------------- + FS Interface (/proc) + -------------------------------------------------------------------------- */ + +static struct proc_dir_entry *acpi_ac_dir; + +static int acpi_ac_seq_show(struct seq_file *seq, void *offset) +{ + struct acpi_ac *ac = seq->private; + + + if (!ac) + return 0; + + if (acpi_ac_get_state(ac)) { + seq_puts(seq, "ERROR: Unable to read AC Adapter state\n"); + return 0; + } + + seq_puts(seq, "state: "); + switch (ac->state) { + case ACPI_AC_STATUS_OFFLINE: + seq_puts(seq, "off-line\n"); + break; + case ACPI_AC_STATUS_ONLINE: + seq_puts(seq, "on-line\n"); + break; + default: + seq_puts(seq, "unknown\n"); + break; + } + + return 0; +} + +static int acpi_ac_open_fs(struct inode *inode, struct file *file) +{ + return single_open(file, acpi_ac_seq_show, PDE_DATA(inode)); +} + +static int acpi_ac_add_fs(struct acpi_ac *ac) +{ + struct proc_dir_entry *entry = NULL; + + printk(KERN_WARNING PREFIX "Deprecated procfs I/F for AC is loaded," + " please retry with CONFIG_ACPI_PROCFS_POWER cleared\n"); + if (!acpi_device_dir(ac->device)) { + acpi_device_dir(ac->device) = + proc_mkdir(acpi_device_bid(ac->device), acpi_ac_dir); + if (!acpi_device_dir(ac->device)) + return -ENODEV; + } + + /* 'state' [R] */ + entry = proc_create_data(ACPI_AC_FILE_STATE, + S_IRUGO, acpi_device_dir(ac->device), + &acpi_ac_fops, ac); + if (!entry) + return -ENODEV; + return 0; +} + +static int acpi_ac_remove_fs(struct acpi_ac *ac) +{ + + if (acpi_device_dir(ac->device)) { + remove_proc_entry(ACPI_AC_FILE_STATE, + acpi_device_dir(ac->device)); + remove_proc_entry(acpi_device_bid(ac->device), acpi_ac_dir); + acpi_device_dir(ac->device) = NULL; + } + + return 0; +} +#endif + /* -------------------------------------------------------------------------- Driver Model -------------------------------------------------------------------------- */ -static void acpi_ac_notify_handler(acpi_handle handle, u32 event, void *data) +static void acpi_ac_notify(struct acpi_device *device, u32 event) { - struct acpi_ac *ac = data; - struct acpi_device *adev; + struct acpi_ac *ac = acpi_driver_data(device); if (!ac) return; @@ -142,17 +271,36 @@ static void acpi_ac_notify_handler(acpi_handle handle, u32 event, void *data) msleep(ac_sleep_before_get_state_ms); acpi_ac_get_state(ac); - adev = ACPI_COMPANION(&ac->pdev->dev); - acpi_bus_generate_netlink_event(adev->pnp.device_class, - dev_name(&ac->pdev->dev), - event, (u32) ac->state); - acpi_notifier_call_chain(adev, event, (u32) ac->state); + acpi_bus_generate_netlink_event(device->pnp.device_class, + dev_name(&device->dev), event, + (u32) ac->state); + acpi_notifier_call_chain(device, event, (u32) ac->state); kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE); } return; } +static int acpi_ac_battery_notify(struct notifier_block *nb, + unsigned long action, void *data) +{ + struct acpi_ac *ac = container_of(nb, struct acpi_ac, battery_nb); + struct acpi_bus_event *event = (struct acpi_bus_event *)data; + + /* + * On HP Pavilion dv6-6179er AC status notifications aren't triggered + * when adapter is plugged/unplugged. However, battery status + * notifcations are triggered when battery starts charging or + * discharging. Re-reading AC status triggers lost AC notifications, + * if AC status has changed. + */ + if (strcmp(event->device_class, ACPI_BATTERY_CLASS) == 0 && + event->type == ACPI_BATTERY_NOTIFY_STATUS) + acpi_ac_get_state(ac); + + return NOTIFY_OK; +} + static int thinkpad_e530_quirk(const struct dmi_system_id *d) { ac_sleep_before_get_state_ms = 1000; @@ -171,54 +319,55 @@ static struct dmi_system_id ac_dmi_table[] = { {}, }; -static int acpi_ac_probe(struct platform_device *pdev) +static int acpi_ac_add(struct acpi_device *device) { int result = 0; struct acpi_ac *ac = NULL; - struct acpi_device *adev; - if (!pdev) - return -EINVAL; - adev = ACPI_COMPANION(&pdev->dev); - if (!adev) - return -ENODEV; + if (!device) + return -EINVAL; ac = kzalloc(sizeof(struct acpi_ac), GFP_KERNEL); if (!ac) return -ENOMEM; - strcpy(acpi_device_name(adev), ACPI_AC_DEVICE_NAME); - strcpy(acpi_device_class(adev), ACPI_AC_CLASS); - ac->pdev = pdev; - platform_set_drvdata(pdev, ac); + ac->device = device; + strcpy(acpi_device_name(device), ACPI_AC_DEVICE_NAME); + strcpy(acpi_device_class(device), ACPI_AC_CLASS); + device->driver_data = ac; result = acpi_ac_get_state(ac); if (result) goto end; - ac->charger.name = acpi_device_bid(adev); + ac->charger.name = acpi_device_bid(device); +#ifdef CONFIG_ACPI_PROCFS_POWER + result = acpi_ac_add_fs(ac); + if (result) + goto end; +#endif ac->charger.type = POWER_SUPPLY_TYPE_MAINS; ac->charger.properties = ac_props; ac->charger.num_properties = ARRAY_SIZE(ac_props); ac->charger.get_property = get_ac_property; - result = power_supply_register(&pdev->dev, &ac->charger); + result = power_supply_register(&ac->device->dev, &ac->charger); if (result) goto end; - result = acpi_install_notify_handler(ACPI_HANDLE(&pdev->dev), - ACPI_ALL_NOTIFY, acpi_ac_notify_handler, ac); - if (result) { - power_supply_unregister(&ac->charger); - goto end; - } printk(KERN_INFO PREFIX "%s [%s] (%s)\n", - acpi_device_name(adev), acpi_device_bid(adev), + acpi_device_name(device), acpi_device_bid(device), ac->state ? "on-line" : "off-line"); + ac->battery_nb.notifier_call = acpi_ac_battery_notify; + register_acpi_notifier(&ac->battery_nb); end: - if (result) + if (result) { +#ifdef CONFIG_ACPI_PROCFS_POWER + acpi_ac_remove_fs(ac); +#endif kfree(ac); + } dmi_check_system(ac_dmi_table); return result; @@ -233,7 +382,7 @@ static int acpi_ac_resume(struct device *dev) if (!dev) return -EINVAL; - ac = platform_get_drvdata(to_platform_device(dev)); + ac = acpi_driver_data(to_acpi_device(dev)); if (!ac) return -EINVAL; @@ -244,45 +393,33 @@ static int acpi_ac_resume(struct device *dev) kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE); return 0; } +#else +#define acpi_ac_resume NULL #endif -static SIMPLE_DEV_PM_OPS(acpi_ac_pm_ops, NULL, acpi_ac_resume); -static int acpi_ac_remove(struct platform_device *pdev) +static int acpi_ac_remove(struct acpi_device *device) { - struct acpi_ac *ac; + struct acpi_ac *ac = NULL; - if (!pdev) + + if (!device || !acpi_driver_data(device)) return -EINVAL; - acpi_remove_notify_handler(ACPI_HANDLE(&pdev->dev), - ACPI_ALL_NOTIFY, acpi_ac_notify_handler); + ac = acpi_driver_data(device); - ac = platform_get_drvdata(pdev); if (ac->charger.dev) power_supply_unregister(&ac->charger); + unregister_acpi_notifier(&ac->battery_nb); + +#ifdef CONFIG_ACPI_PROCFS_POWER + acpi_ac_remove_fs(ac); +#endif kfree(ac); return 0; } -static const struct acpi_device_id acpi_ac_match[] = { - { "ACPI0003", 0 }, - { } -}; -MODULE_DEVICE_TABLE(acpi, acpi_ac_match); - -static struct platform_driver acpi_ac_driver = { - .probe = acpi_ac_probe, - .remove = acpi_ac_remove, - .driver = { - .name = "acpi-ac", - .owner = THIS_MODULE, - .pm = &acpi_ac_pm_ops, - .acpi_match_table = ACPI_PTR(acpi_ac_match), - }, -}; - static int __init acpi_ac_init(void) { int result; @@ -290,16 +427,30 @@ static int __init acpi_ac_init(void) if (acpi_disabled) return -ENODEV; - result = platform_driver_register(&acpi_ac_driver); - if (result < 0) +#ifdef CONFIG_ACPI_PROCFS_POWER + acpi_ac_dir = acpi_lock_ac_dir(); + if (!acpi_ac_dir) return -ENODEV; +#endif + + + result = acpi_bus_register_driver(&acpi_ac_driver); + if (result < 0) { +#ifdef CONFIG_ACPI_PROCFS_POWER + acpi_unlock_ac_dir(acpi_ac_dir); +#endif + return -ENODEV; + } return 0; } static void __exit acpi_ac_exit(void) { - platform_driver_unregister(&acpi_ac_driver); + acpi_bus_unregister_driver(&acpi_ac_driver); +#ifdef CONFIG_ACPI_PROCFS_POWER + acpi_unlock_ac_dir(acpi_ac_dir); +#endif } module_init(acpi_ac_init); module_exit(acpi_ac_exit); diff --git a/drivers/acpi/acpi_cmos_rtc.c b/drivers/acpi/acpi_cmos_rtc.c index 84190ed89c0..2da8660262e 100644 --- a/drivers/acpi/acpi_cmos_rtc.c +++ b/drivers/acpi/acpi_cmos_rtc.c @@ -18,8 +18,6 @@ #include "internal.h" -#define PREFIX "ACPI: " - ACPI_MODULE_NAME("cmos rtc"); static const struct acpi_device_id acpi_cmos_rtc_ids[] = { @@ -70,7 +68,7 @@ static int acpi_install_cmos_rtc_space_handler(struct acpi_device *adev, return -ENODEV; } - return 0; + return 1; } static void acpi_remove_cmos_rtc_space_handler(struct acpi_device *adev) diff --git a/drivers/acpi/acpi_extlog.c b/drivers/acpi/acpi_extlog.c index 5d33c541540..185334114d7 100644 --- a/drivers/acpi/acpi_extlog.c +++ b/drivers/acpi/acpi_extlog.c @@ -9,7 +9,6 @@ #include <linux/module.h> #include <linux/acpi.h> -#include <acpi/acpi_bus.h> #include <linux/cper.h> #include <linux/ratelimit.h> #include <linux/edac.h> @@ -21,11 +20,9 @@ #define EXT_ELOG_ENTRY_MASK GENMASK_ULL(51, 0) /* elog entry address mask */ #define EXTLOG_DSM_REV 0x0 -#define EXTLOG_FN_QUERY 0x0 #define EXTLOG_FN_ADDR 0x1 #define FLAG_OS_OPTIN BIT(0) -#define EXTLOG_QUERY_L1_EXIST BIT(1) #define ELOG_ENTRY_VALID (1ULL<<63) #define ELOG_ENTRY_LEN 0x1000 @@ -46,7 +43,7 @@ struct extlog_l1_head { static int old_edac_report_status; -static u8 extlog_dsm_uuid[] = "663E35AF-CC10-41A4-88EA-5470AF055295"; +static u8 extlog_dsm_uuid[] __initdata = "663E35AF-CC10-41A4-88EA-5470AF055295"; /* L1 table related physical address */ static u64 elog_base; @@ -156,62 +153,27 @@ static int extlog_print(struct notifier_block *nb, unsigned long val, return NOTIFY_STOP; } -static int extlog_get_dsm(acpi_handle handle, int rev, int func, u64 *ret) +static bool __init extlog_get_l1addr(void) { - struct acpi_buffer buf = {ACPI_ALLOCATE_BUFFER, NULL}; - struct acpi_object_list input; - union acpi_object params[4], *obj; u8 uuid[16]; - int i; + acpi_handle handle; + union acpi_object *obj; acpi_str_to_uuid(extlog_dsm_uuid, uuid); - input.count = 4; - input.pointer = params; - params[0].type = ACPI_TYPE_BUFFER; - params[0].buffer.length = 16; - params[0].buffer.pointer = uuid; - params[1].type = ACPI_TYPE_INTEGER; - params[1].integer.value = rev; - params[2].type = ACPI_TYPE_INTEGER; - params[2].integer.value = func; - params[3].type = ACPI_TYPE_PACKAGE; - params[3].package.count = 0; - params[3].package.elements = NULL; - - if (ACPI_FAILURE(acpi_evaluate_object(handle, "_DSM", &input, &buf))) - return -1; - - *ret = 0; - obj = (union acpi_object *)buf.pointer; - if (obj->type == ACPI_TYPE_INTEGER) { - *ret = obj->integer.value; - } else if (obj->type == ACPI_TYPE_BUFFER) { - if (obj->buffer.length <= 8) { - for (i = 0; i < obj->buffer.length; i++) - *ret |= (obj->buffer.pointer[i] << (i * 8)); - } - } - kfree(buf.pointer); - - return 0; -} - -static bool extlog_get_l1addr(void) -{ - acpi_handle handle; - u64 ret; if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle))) return false; - - if (extlog_get_dsm(handle, EXTLOG_DSM_REV, EXTLOG_FN_QUERY, &ret) || - !(ret & EXTLOG_QUERY_L1_EXIST)) + if (!acpi_check_dsm(handle, uuid, EXTLOG_DSM_REV, 1 << EXTLOG_FN_ADDR)) return false; - - if (extlog_get_dsm(handle, EXTLOG_DSM_REV, EXTLOG_FN_ADDR, &ret)) + obj = acpi_evaluate_dsm_typed(handle, uuid, EXTLOG_DSM_REV, + EXTLOG_FN_ADDR, NULL, ACPI_TYPE_INTEGER); + if (!obj) { return false; + } else { + l1_dirbase = obj->integer.value; + ACPI_FREE(obj); + } - l1_dirbase = ret; /* Spec says L1 directory must be 4K aligned, bail out if it isn't */ if (l1_dirbase & ((1 << 12) - 1)) { pr_warn(FW_BUG "L1 Directory is invalid at physical %llx\n", @@ -258,13 +220,13 @@ static int __init extlog_init(void) goto err; } - extlog_l1_hdr = acpi_os_map_memory(l1_dirbase, l1_hdr_size); + extlog_l1_hdr = acpi_os_map_iomem(l1_dirbase, l1_hdr_size); l1_head = (struct extlog_l1_head *)extlog_l1_hdr; l1_size = l1_head->total_len; l1_percpu_entry = l1_head->entries; elog_base = l1_head->elog_base; elog_size = l1_head->elog_len; - acpi_os_unmap_memory(extlog_l1_hdr, l1_hdr_size); + acpi_os_unmap_iomem(extlog_l1_hdr, l1_hdr_size); release_mem_region(l1_dirbase, l1_hdr_size); /* remap L1 header again based on completed information */ @@ -275,7 +237,7 @@ static int __init extlog_init(void) (unsigned long long)l1_dirbase + l1_size); goto err; } - extlog_l1_addr = acpi_os_map_memory(l1_dirbase, l1_size); + extlog_l1_addr = acpi_os_map_iomem(l1_dirbase, l1_size); l1_entry_base = (u64 *)((u8 *)extlog_l1_addr + l1_hdr_size); /* remap elog table */ @@ -286,7 +248,7 @@ static int __init extlog_init(void) (unsigned long long)elog_base + elog_size); goto err_release_l1_dir; } - elog_addr = acpi_os_map_memory(elog_base, elog_size); + elog_addr = acpi_os_map_iomem(elog_base, elog_size); rc = -ENOMEM; /* allocate buffer to save elog record */ @@ -308,11 +270,11 @@ static int __init extlog_init(void) err_release_elog: if (elog_addr) - acpi_os_unmap_memory(elog_addr, elog_size); + acpi_os_unmap_iomem(elog_addr, elog_size); release_mem_region(elog_base, elog_size); err_release_l1_dir: if (extlog_l1_addr) - acpi_os_unmap_memory(extlog_l1_addr, l1_size); + acpi_os_unmap_iomem(extlog_l1_addr, l1_size); release_mem_region(l1_dirbase, l1_size); err: pr_warn(FW_BUG "Extended error log disabled because of problems parsing f/w tables\n"); @@ -325,9 +287,9 @@ static void __exit extlog_exit(void) mce_unregister_decode_chain(&extlog_mce_dec); ((struct extlog_l1_head *)extlog_l1_addr)->flags &= ~FLAG_OS_OPTIN; if (extlog_l1_addr) - acpi_os_unmap_memory(extlog_l1_addr, l1_size); + acpi_os_unmap_iomem(extlog_l1_addr, l1_size); if (elog_addr) - acpi_os_unmap_memory(elog_addr, elog_size); + acpi_os_unmap_iomem(elog_addr, elog_size); release_mem_region(elog_base, elog_size); release_mem_region(l1_dirbase, l1_size); kfree(elog_buf); diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index 6745fe137b9..9cb65b0e759 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -19,23 +19,41 @@ #include <linux/platform_device.h> #include <linux/platform_data/clk-lpss.h> #include <linux/pm_runtime.h> +#include <linux/delay.h> #include "internal.h" ACPI_MODULE_NAME("acpi_lpss"); +#ifdef CONFIG_X86_INTEL_LPSS + +#define LPSS_ADDR(desc) ((unsigned long)&desc) + #define LPSS_CLK_SIZE 0x04 #define LPSS_LTR_SIZE 0x18 /* Offsets relative to LPSS_PRIVATE_OFFSET */ +#define LPSS_CLK_DIVIDER_DEF_MASK (BIT(1) | BIT(16)) +#define LPSS_RESETS 0x04 +#define LPSS_RESETS_RESET_FUNC BIT(0) +#define LPSS_RESETS_RESET_APB BIT(1) #define LPSS_GENERAL 0x08 #define LPSS_GENERAL_LTR_MODE_SW BIT(2) #define LPSS_GENERAL_UART_RTS_OVRD BIT(3) #define LPSS_SW_LTR 0x10 #define LPSS_AUTO_LTR 0x14 +#define LPSS_LTR_SNOOP_REQ BIT(15) +#define LPSS_LTR_SNOOP_MASK 0x0000FFFF +#define LPSS_LTR_SNOOP_LAT_1US 0x800 +#define LPSS_LTR_SNOOP_LAT_32US 0xC00 +#define LPSS_LTR_SNOOP_LAT_SHIFT 5 +#define LPSS_LTR_SNOOP_LAT_CUTOFF 3000 +#define LPSS_LTR_MAX_VAL 0x3FF #define LPSS_TX_INT 0x20 #define LPSS_TX_INT_MASK BIT(1) +#define LPSS_PRV_REG_COUNT 9 + struct lpss_shared_clock { const char *name; unsigned long rate; @@ -50,7 +68,9 @@ struct lpss_device_desc { bool ltr_required; unsigned int prv_offset; size_t prv_size_override; + bool clk_divider; bool clk_gate; + bool save_ctx; struct lpss_shared_clock *shared_clock; void (*setup)(struct lpss_private_data *pdata); }; @@ -65,6 +85,7 @@ struct lpss_private_data { resource_size_t mmio_size; struct clk *clk; const struct lpss_device_desc *dev_desc; + u32 prv_reg_ctx[LPSS_PRV_REG_COUNT]; }; static void lpss_uart_setup(struct lpss_private_data *pdata) @@ -81,10 +102,29 @@ static void lpss_uart_setup(struct lpss_private_data *pdata) writel(reg | LPSS_GENERAL_UART_RTS_OVRD, pdata->mmio_base + offset); } +static void lpss_i2c_setup(struct lpss_private_data *pdata) +{ + unsigned int offset; + u32 val; + + offset = pdata->dev_desc->prv_offset + LPSS_RESETS; + val = readl(pdata->mmio_base + offset); + val |= LPSS_RESETS_RESET_APB | LPSS_RESETS_RESET_FUNC; + writel(val, pdata->mmio_base + offset); +} + static struct lpss_device_desc lpt_dev_desc = { .clk_required = true, .prv_offset = 0x800, .ltr_required = true, + .clk_divider = true, + .clk_gate = true, +}; + +static struct lpss_device_desc lpt_i2c_dev_desc = { + .clk_required = true, + .prv_offset = 0x800, + .ltr_required = true, .clk_gate = true, }; @@ -92,6 +132,7 @@ static struct lpss_device_desc lpt_uart_dev_desc = { .clk_required = true, .prv_offset = 0x800, .ltr_required = true, + .clk_divider = true, .clk_gate = true, .setup = lpss_uart_setup, }; @@ -102,29 +143,32 @@ static struct lpss_device_desc lpt_sdio_dev_desc = { .ltr_required = true, }; -static struct lpss_shared_clock uart_clock = { - .name = "uart_clk", - .rate = 44236800, +static struct lpss_shared_clock pwm_clock = { + .name = "pwm_clk", + .rate = 25000000, +}; + +static struct lpss_device_desc byt_pwm_dev_desc = { + .clk_required = true, + .save_ctx = true, + .shared_clock = &pwm_clock, }; static struct lpss_device_desc byt_uart_dev_desc = { .clk_required = true, .prv_offset = 0x800, + .clk_divider = true, .clk_gate = true, - .shared_clock = &uart_clock, + .save_ctx = true, .setup = lpss_uart_setup, }; -static struct lpss_shared_clock spi_clock = { - .name = "spi_clk", - .rate = 50000000, -}; - static struct lpss_device_desc byt_spi_dev_desc = { .clk_required = true, .prv_offset = 0x400, + .clk_divider = true, .clk_gate = true, - .shared_clock = &spi_clock, + .save_ctx = true, }; static struct lpss_device_desc byt_sdio_dev_desc = { @@ -139,42 +183,54 @@ static struct lpss_shared_clock i2c_clock = { static struct lpss_device_desc byt_i2c_dev_desc = { .clk_required = true, .prv_offset = 0x800, + .save_ctx = true, .shared_clock = &i2c_clock, + .setup = lpss_i2c_setup, }; +#else + +#define LPSS_ADDR(desc) (0UL) + +#endif /* CONFIG_X86_INTEL_LPSS */ + static const struct acpi_device_id acpi_lpss_device_ids[] = { /* Generic LPSS devices */ - { "INTL9C60", (unsigned long)&lpss_dma_desc }, + { "INTL9C60", LPSS_ADDR(lpss_dma_desc) }, /* Lynxpoint LPSS devices */ - { "INT33C0", (unsigned long)&lpt_dev_desc }, - { "INT33C1", (unsigned long)&lpt_dev_desc }, - { "INT33C2", (unsigned long)&lpt_dev_desc }, - { "INT33C3", (unsigned long)&lpt_dev_desc }, - { "INT33C4", (unsigned long)&lpt_uart_dev_desc }, - { "INT33C5", (unsigned long)&lpt_uart_dev_desc }, - { "INT33C6", (unsigned long)&lpt_sdio_dev_desc }, + { "INT33C0", LPSS_ADDR(lpt_dev_desc) }, + { "INT33C1", LPSS_ADDR(lpt_dev_desc) }, + { "INT33C2", LPSS_ADDR(lpt_i2c_dev_desc) }, + { "INT33C3", LPSS_ADDR(lpt_i2c_dev_desc) }, + { "INT33C4", LPSS_ADDR(lpt_uart_dev_desc) }, + { "INT33C5", LPSS_ADDR(lpt_uart_dev_desc) }, + { "INT33C6", LPSS_ADDR(lpt_sdio_dev_desc) }, { "INT33C7", }, /* BayTrail LPSS devices */ - { "80860F0A", (unsigned long)&byt_uart_dev_desc }, - { "80860F0E", (unsigned long)&byt_spi_dev_desc }, - { "80860F14", (unsigned long)&byt_sdio_dev_desc }, - { "80860F41", (unsigned long)&byt_i2c_dev_desc }, + { "80860F09", LPSS_ADDR(byt_pwm_dev_desc) }, + { "80860F0A", LPSS_ADDR(byt_uart_dev_desc) }, + { "80860F0E", LPSS_ADDR(byt_spi_dev_desc) }, + { "80860F14", LPSS_ADDR(byt_sdio_dev_desc) }, + { "80860F41", LPSS_ADDR(byt_i2c_dev_desc) }, { "INT33B2", }, - - { "INT3430", (unsigned long)&lpt_dev_desc }, - { "INT3431", (unsigned long)&lpt_dev_desc }, - { "INT3432", (unsigned long)&lpt_dev_desc }, - { "INT3433", (unsigned long)&lpt_dev_desc }, - { "INT3434", (unsigned long)&lpt_uart_dev_desc }, - { "INT3435", (unsigned long)&lpt_uart_dev_desc }, - { "INT3436", (unsigned long)&lpt_sdio_dev_desc }, + { "INT33FC", }, + + { "INT3430", LPSS_ADDR(lpt_dev_desc) }, + { "INT3431", LPSS_ADDR(lpt_dev_desc) }, + { "INT3432", LPSS_ADDR(lpt_i2c_dev_desc) }, + { "INT3433", LPSS_ADDR(lpt_i2c_dev_desc) }, + { "INT3434", LPSS_ADDR(lpt_uart_dev_desc) }, + { "INT3435", LPSS_ADDR(lpt_uart_dev_desc) }, + { "INT3436", LPSS_ADDR(lpt_sdio_dev_desc) }, { "INT3437", }, { } }; +#ifdef CONFIG_X86_INTEL_LPSS + static int is_memory(struct acpi_resource *res, void *not_used) { struct resource r; @@ -194,9 +250,11 @@ static int register_device_clock(struct acpi_device *adev, { const struct lpss_device_desc *dev_desc = pdata->dev_desc; struct lpss_shared_clock *shared_clock = dev_desc->shared_clock; + const char *devname = dev_name(&adev->dev); struct clk *clk = ERR_PTR(-ENODEV); struct lpss_clk_data *clk_data; - const char *parent; + const char *parent, *clk_name; + void __iomem *prv_base; if (!lpss_clk_dev) lpt_register_clock_device(); @@ -207,7 +265,7 @@ static int register_device_clock(struct acpi_device *adev, if (dev_desc->clkdev_name) { clk_register_clkdev(clk_data->clk, dev_desc->clkdev_name, - dev_name(&adev->dev)); + devname); return 0; } @@ -216,6 +274,7 @@ static int register_device_clock(struct acpi_device *adev, return -ENODATA; parent = clk_data->name; + prv_base = pdata->mmio_base + dev_desc->prv_offset; if (shared_clock) { clk = shared_clock->clk; @@ -229,16 +288,41 @@ static int register_device_clock(struct acpi_device *adev, } if (dev_desc->clk_gate) { - clk = clk_register_gate(NULL, dev_name(&adev->dev), parent, 0, - pdata->mmio_base + dev_desc->prv_offset, - 0, 0, NULL); - pdata->clk = clk; + clk = clk_register_gate(NULL, devname, parent, 0, + prv_base, 0, 0, NULL); + parent = devname; + } + + if (dev_desc->clk_divider) { + /* Prevent division by zero */ + if (!readl(prv_base)) + writel(LPSS_CLK_DIVIDER_DEF_MASK, prv_base); + + clk_name = kasprintf(GFP_KERNEL, "%s-div", devname); + if (!clk_name) + return -ENOMEM; + clk = clk_register_fractional_divider(NULL, clk_name, parent, + 0, prv_base, + 1, 15, 16, 15, 0, NULL); + parent = clk_name; + + clk_name = kasprintf(GFP_KERNEL, "%s-update", devname); + if (!clk_name) { + kfree(parent); + return -ENOMEM; + } + clk = clk_register_gate(NULL, clk_name, parent, + CLK_SET_RATE_PARENT | CLK_SET_RATE_GATE, + prv_base, 31, 0, NULL); + kfree(parent); + kfree(clk_name); } if (IS_ERR(clk)) return PTR_ERR(clk); - clk_register_clkdev(clk, NULL, dev_name(&adev->dev)); + pdata->clk = clk; + clk_register_clkdev(clk, NULL, devname); return 0; } @@ -249,12 +333,14 @@ static int acpi_lpss_create_device(struct acpi_device *adev, struct lpss_private_data *pdata; struct resource_list_entry *rentry; struct list_head resource_list; + struct platform_device *pdev; int ret; dev_desc = (struct lpss_device_desc *)id->driver_data; - if (!dev_desc) - return acpi_create_platform_device(adev, id); - + if (!dev_desc) { + pdev = acpi_create_platform_device(adev); + return IS_ERR_OR_NULL(pdev) ? PTR_ERR(pdev) : 1; + } pdata = kzalloc(sizeof(*pdata), GFP_KERNEL); if (!pdata) return -ENOMEM; @@ -304,10 +390,13 @@ static int acpi_lpss_create_device(struct acpi_device *adev, dev_desc->setup(pdata); adev->driver_data = pdata; - ret = acpi_create_platform_device(adev, id); - if (ret > 0) - return ret; + pdev = acpi_create_platform_device(adev); + if (!IS_ERR_OR_NULL(pdev)) { + device_enable_async_suspend(&pdev->dev); + return 1; + } + ret = PTR_ERR(pdev); adev->driver_data = NULL; err_out: @@ -315,6 +404,17 @@ static int acpi_lpss_create_device(struct acpi_device *adev, return ret; } +static u32 __lpss_reg_read(struct lpss_private_data *pdata, unsigned int reg) +{ + return readl(pdata->mmio_base + pdata->dev_desc->prv_offset + reg); +} + +static void __lpss_reg_write(u32 val, struct lpss_private_data *pdata, + unsigned int reg) +{ + writel(val, pdata->mmio_base + pdata->dev_desc->prv_offset + reg); +} + static int lpss_reg_read(struct device *dev, unsigned int reg, u32 *val) { struct acpi_device *adev; @@ -336,7 +436,7 @@ static int lpss_reg_read(struct device *dev, unsigned int reg, u32 *val) ret = -ENODEV; goto out; } - *val = readl(pdata->mmio_base + pdata->dev_desc->prv_offset + reg); + *val = __lpss_reg_read(pdata, reg); out: spin_unlock_irqrestore(&dev->power.lock, flags); @@ -389,6 +489,157 @@ static struct attribute_group lpss_attr_group = { .name = "lpss_ltr", }; +static void acpi_lpss_set_ltr(struct device *dev, s32 val) +{ + struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev)); + u32 ltr_mode, ltr_val; + + ltr_mode = __lpss_reg_read(pdata, LPSS_GENERAL); + if (val < 0) { + if (ltr_mode & LPSS_GENERAL_LTR_MODE_SW) { + ltr_mode &= ~LPSS_GENERAL_LTR_MODE_SW; + __lpss_reg_write(ltr_mode, pdata, LPSS_GENERAL); + } + return; + } + ltr_val = __lpss_reg_read(pdata, LPSS_SW_LTR) & ~LPSS_LTR_SNOOP_MASK; + if (val >= LPSS_LTR_SNOOP_LAT_CUTOFF) { + ltr_val |= LPSS_LTR_SNOOP_LAT_32US; + val = LPSS_LTR_MAX_VAL; + } else if (val > LPSS_LTR_MAX_VAL) { + ltr_val |= LPSS_LTR_SNOOP_LAT_32US | LPSS_LTR_SNOOP_REQ; + val >>= LPSS_LTR_SNOOP_LAT_SHIFT; + } else { + ltr_val |= LPSS_LTR_SNOOP_LAT_1US | LPSS_LTR_SNOOP_REQ; + } + ltr_val |= val; + __lpss_reg_write(ltr_val, pdata, LPSS_SW_LTR); + if (!(ltr_mode & LPSS_GENERAL_LTR_MODE_SW)) { + ltr_mode |= LPSS_GENERAL_LTR_MODE_SW; + __lpss_reg_write(ltr_mode, pdata, LPSS_GENERAL); + } +} + +#ifdef CONFIG_PM +/** + * acpi_lpss_save_ctx() - Save the private registers of LPSS device + * @dev: LPSS device + * + * Most LPSS devices have private registers which may loose their context when + * the device is powered down. acpi_lpss_save_ctx() saves those registers into + * prv_reg_ctx array. + */ +static void acpi_lpss_save_ctx(struct device *dev) +{ + struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev)); + unsigned int i; + + for (i = 0; i < LPSS_PRV_REG_COUNT; i++) { + unsigned long offset = i * sizeof(u32); + + pdata->prv_reg_ctx[i] = __lpss_reg_read(pdata, offset); + dev_dbg(dev, "saving 0x%08x from LPSS reg at offset 0x%02lx\n", + pdata->prv_reg_ctx[i], offset); + } +} + +/** + * acpi_lpss_restore_ctx() - Restore the private registers of LPSS device + * @dev: LPSS device + * + * Restores the registers that were previously stored with acpi_lpss_save_ctx(). + */ +static void acpi_lpss_restore_ctx(struct device *dev) +{ + struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev)); + unsigned int i; + + /* + * The following delay is needed or the subsequent write operations may + * fail. The LPSS devices are actually PCI devices and the PCI spec + * expects 10ms delay before the device can be accessed after D3 to D0 + * transition. + */ + msleep(10); + + for (i = 0; i < LPSS_PRV_REG_COUNT; i++) { + unsigned long offset = i * sizeof(u32); + + __lpss_reg_write(pdata->prv_reg_ctx[i], pdata, offset); + dev_dbg(dev, "restoring 0x%08x to LPSS reg at offset 0x%02lx\n", + pdata->prv_reg_ctx[i], offset); + } +} + +#ifdef CONFIG_PM_SLEEP +static int acpi_lpss_suspend_late(struct device *dev) +{ + int ret = pm_generic_suspend_late(dev); + + if (ret) + return ret; + + acpi_lpss_save_ctx(dev); + return acpi_dev_suspend_late(dev); +} + +static int acpi_lpss_restore_early(struct device *dev) +{ + int ret = acpi_dev_resume_early(dev); + + if (ret) + return ret; + + acpi_lpss_restore_ctx(dev); + return pm_generic_resume_early(dev); +} +#endif /* CONFIG_PM_SLEEP */ + +#ifdef CONFIG_PM_RUNTIME +static int acpi_lpss_runtime_suspend(struct device *dev) +{ + int ret = pm_generic_runtime_suspend(dev); + + if (ret) + return ret; + + acpi_lpss_save_ctx(dev); + return acpi_dev_runtime_suspend(dev); +} + +static int acpi_lpss_runtime_resume(struct device *dev) +{ + int ret = acpi_dev_runtime_resume(dev); + + if (ret) + return ret; + + acpi_lpss_restore_ctx(dev); + return pm_generic_runtime_resume(dev); +} +#endif /* CONFIG_PM_RUNTIME */ +#endif /* CONFIG_PM */ + +static struct dev_pm_domain acpi_lpss_pm_domain = { + .ops = { +#ifdef CONFIG_PM_SLEEP + .suspend_late = acpi_lpss_suspend_late, + .restore_early = acpi_lpss_restore_early, + .prepare = acpi_subsys_prepare, + .complete = acpi_subsys_complete, + .suspend = acpi_subsys_suspend, + .resume_early = acpi_subsys_resume_early, + .freeze = acpi_subsys_freeze, + .poweroff = acpi_subsys_suspend, + .poweroff_late = acpi_subsys_suspend_late, +#endif +#ifdef CONFIG_PM_RUNTIME + .runtime_suspend = acpi_lpss_runtime_suspend, + .runtime_resume = acpi_lpss_runtime_resume, +#endif + }, +}; + static int acpi_lpss_platform_notify(struct notifier_block *nb, unsigned long action, void *data) { @@ -396,7 +647,6 @@ static int acpi_lpss_platform_notify(struct notifier_block *nb, struct lpss_private_data *pdata; struct acpi_device *adev; const struct acpi_device_id *id; - int ret = 0; id = acpi_match_device(acpi_lpss_device_ids, &pdev->dev); if (!id || !id->driver_data) @@ -406,7 +656,7 @@ static int acpi_lpss_platform_notify(struct notifier_block *nb, return 0; pdata = acpi_driver_data(adev); - if (!pdata || !pdata->mmio_base || !pdata->dev_desc->ltr_required) + if (!pdata || !pdata->mmio_base) return 0; if (pdata->mmio_size < pdata->dev_desc->prv_offset + LPSS_LTR_SIZE) { @@ -414,21 +664,56 @@ static int acpi_lpss_platform_notify(struct notifier_block *nb, return 0; } - if (action == BUS_NOTIFY_ADD_DEVICE) - ret = sysfs_create_group(&pdev->dev.kobj, &lpss_attr_group); - else if (action == BUS_NOTIFY_DEL_DEVICE) - sysfs_remove_group(&pdev->dev.kobj, &lpss_attr_group); + switch (action) { + case BUS_NOTIFY_BOUND_DRIVER: + if (pdata->dev_desc->save_ctx) + pdev->dev.pm_domain = &acpi_lpss_pm_domain; + break; + case BUS_NOTIFY_UNBOUND_DRIVER: + if (pdata->dev_desc->save_ctx) + pdev->dev.pm_domain = NULL; + break; + case BUS_NOTIFY_ADD_DEVICE: + if (pdata->dev_desc->ltr_required) + return sysfs_create_group(&pdev->dev.kobj, + &lpss_attr_group); + case BUS_NOTIFY_DEL_DEVICE: + if (pdata->dev_desc->ltr_required) + sysfs_remove_group(&pdev->dev.kobj, &lpss_attr_group); + default: + break; + } - return ret; + return 0; } static struct notifier_block acpi_lpss_nb = { .notifier_call = acpi_lpss_platform_notify, }; +static void acpi_lpss_bind(struct device *dev) +{ + struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev)); + + if (!pdata || !pdata->mmio_base || !pdata->dev_desc->ltr_required) + return; + + if (pdata->mmio_size >= pdata->dev_desc->prv_offset + LPSS_LTR_SIZE) + dev->power.set_latency_tolerance = acpi_lpss_set_ltr; + else + dev_err(dev, "MMIO size insufficient to access LTR\n"); +} + +static void acpi_lpss_unbind(struct device *dev) +{ + dev->power.set_latency_tolerance = NULL; +} + static struct acpi_scan_handler lpss_handler = { .ids = acpi_lpss_device_ids, .attach = acpi_lpss_create_device, + .bind = acpi_lpss_bind, + .unbind = acpi_lpss_unbind, }; void __init acpi_lpss_init(void) @@ -438,3 +723,16 @@ void __init acpi_lpss_init(void) acpi_scan_add_handler(&lpss_handler); } } + +#else + +static struct acpi_scan_handler lpss_handler = { + .ids = acpi_lpss_device_ids, +}; + +void __init acpi_lpss_init(void) +{ + acpi_scan_add_handler(&lpss_handler); +} + +#endif /* CONFIG_X86_INTEL_LPSS */ diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c index 551dad712ff..23e2319ead4 100644 --- a/drivers/acpi/acpi_memhotplug.c +++ b/drivers/acpi/acpi_memhotplug.c @@ -44,6 +44,13 @@ ACPI_MODULE_NAME("acpi_memhotplug"); +static const struct acpi_device_id memory_device_ids[] = { + {ACPI_MEMORY_DEVICE_HID, 0}, + {"", 0}, +}; + +#ifdef CONFIG_ACPI_HOTPLUG_MEMORY + /* Memory Device States */ #define MEMORY_INVALID_STATE 0 #define MEMORY_POWER_ON_STATE 1 @@ -53,11 +60,6 @@ static int acpi_memory_device_add(struct acpi_device *device, const struct acpi_device_id *not_used); static void acpi_memory_device_remove(struct acpi_device *device); -static const struct acpi_device_id memory_device_ids[] = { - {ACPI_MEMORY_DEVICE_HID, 0}, - {"", 0}, -}; - static struct acpi_scan_handler memory_device_handler = { .ids = memory_device_ids, .attach = acpi_memory_device_add, @@ -180,14 +182,14 @@ static unsigned long acpi_meminfo_end_pfn(struct acpi_memory_info *info) static int acpi_bind_memblk(struct memory_block *mem, void *arg) { - return acpi_bind_one(&mem->dev, (acpi_handle)arg); + return acpi_bind_one(&mem->dev, arg); } static int acpi_bind_memory_blocks(struct acpi_memory_info *info, - acpi_handle handle) + struct acpi_device *adev) { return walk_memory_range(acpi_meminfo_start_pfn(info), - acpi_meminfo_end_pfn(info), (void *)handle, + acpi_meminfo_end_pfn(info), adev, acpi_bind_memblk); } @@ -197,8 +199,7 @@ static int acpi_unbind_memblk(struct memory_block *mem, void *arg) return 0; } -static void acpi_unbind_memory_blocks(struct acpi_memory_info *info, - acpi_handle handle) +static void acpi_unbind_memory_blocks(struct acpi_memory_info *info) { walk_memory_range(acpi_meminfo_start_pfn(info), acpi_meminfo_end_pfn(info), NULL, acpi_unbind_memblk); @@ -242,9 +243,9 @@ static int acpi_memory_enable_device(struct acpi_memory_device *mem_device) if (result && result != -EEXIST) continue; - result = acpi_bind_memory_blocks(info, handle); + result = acpi_bind_memory_blocks(info, mem_device->device); if (result) { - acpi_unbind_memory_blocks(info, handle); + acpi_unbind_memory_blocks(info); return -ENODEV; } @@ -285,7 +286,7 @@ static void acpi_memory_remove_memory(struct acpi_memory_device *mem_device) if (nid == NUMA_NO_NODE) nid = memory_add_physaddr_to_nid(info->start_addr); - acpi_unbind_memory_blocks(info, handle); + acpi_unbind_memory_blocks(info); remove_memory(nid, info->start_addr, info->length); list_del(&info->list); kfree(info); @@ -361,7 +362,34 @@ static void acpi_memory_device_remove(struct acpi_device *device) acpi_memory_device_free(mem_device); } +static bool __initdata acpi_no_memhotplug; + void __init acpi_memory_hotplug_init(void) { + if (acpi_no_memhotplug) { + memory_device_handler.attach = NULL; + acpi_scan_add_handler(&memory_device_handler); + return; + } acpi_scan_add_handler_with_hotplug(&memory_device_handler, "memory"); } + +static int __init disable_acpi_memory_hotplug(char *str) +{ + acpi_no_memhotplug = true; + return 1; +} +__setup("acpi_no_memhotplug", disable_acpi_memory_hotplug); + +#else + +static struct acpi_scan_handler memory_device_handler = { + .ids = memory_device_ids, +}; + +void __init acpi_memory_hotplug_init(void) +{ + acpi_scan_add_handler(&memory_device_handler); +} + +#endif /* CONFIG_ACPI_HOTPLUG_MEMORY */ diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c index 509452a62f9..f148a0580e0 100644 --- a/drivers/acpi/acpi_pad.c +++ b/drivers/acpi/acpi_pad.c @@ -28,8 +28,7 @@ #include <linux/cpu.h> #include <linux/clockchips.h> #include <linux/slab.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <asm/mwait.h> #define ACPI_PROCESSOR_AGGREGATOR_CLASS "acpi_pad" @@ -157,12 +156,13 @@ static int power_saving_thread(void *data) while (!kthread_should_stop()) { int cpu; - u64 expire_time; + unsigned long expire_time; try_to_freeze(); /* round robin to cpus */ - if (last_jiffies + round_robin_time * HZ < jiffies) { + expire_time = last_jiffies + round_robin_time * HZ; + if (time_before(expire_time, jiffies)) { last_jiffies = jiffies; round_robin_cpu(tsk_index); } @@ -201,7 +201,7 @@ static int power_saving_thread(void *data) CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu); local_irq_enable(); - if (jiffies > expire_time) { + if (time_before(expire_time, jiffies)) { do_sleep = 1; break; } @@ -216,8 +216,15 @@ static int power_saving_thread(void *data) * borrow CPU time from this CPU and cause RT task use > 95% * CPU time. To make 'avoid starvation' work, takes a nap here. */ - if (do_sleep) + if (unlikely(do_sleep)) schedule_timeout_killable(HZ * idle_pct / 100); + + /* If an external event has set the need_resched flag, then + * we need to deal with it, or this loop will continue to + * spin without calling __mwait(). + */ + if (unlikely(need_resched())) + schedule(); } exit_round_robin(tsk_index); @@ -409,28 +416,14 @@ static int acpi_pad_pur(acpi_handle handle) return num; } -/* Notify firmware how many CPUs are idle */ -static void acpi_pad_ost(acpi_handle handle, int stat, - uint32_t idle_cpus) -{ - union acpi_object params[3] = { - {.type = ACPI_TYPE_INTEGER,}, - {.type = ACPI_TYPE_INTEGER,}, - {.type = ACPI_TYPE_BUFFER,}, - }; - struct acpi_object_list arg_list = {3, params}; - - params[0].integer.value = ACPI_PROCESSOR_AGGREGATOR_NOTIFY; - params[1].integer.value = stat; - params[2].buffer.length = 4; - params[2].buffer.pointer = (void *)&idle_cpus; - acpi_evaluate_object(handle, "_OST", &arg_list, NULL); -} - static void acpi_pad_handle_notify(acpi_handle handle) { int num_cpus; uint32_t idle_cpus; + struct acpi_buffer param = { + .length = 4, + .pointer = (void *)&idle_cpus, + }; mutex_lock(&isolated_cpus_lock); num_cpus = acpi_pad_pur(handle); @@ -440,7 +433,7 @@ static void acpi_pad_handle_notify(acpi_handle handle) } acpi_pad_idle_cpus(num_cpus); idle_cpus = acpi_pad_idle_cpus_num(); - acpi_pad_ost(handle, 0, idle_cpus); + acpi_evaluate_ost(handle, ACPI_PROCESSOR_AGGREGATOR_NOTIFY, 0, ¶m); mutex_unlock(&isolated_cpus_lock); } diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c index dbfe49e5fd6..2bf9082f752 100644 --- a/drivers/acpi/acpi_platform.c +++ b/drivers/acpi/acpi_platform.c @@ -22,28 +22,16 @@ ACPI_MODULE_NAME("platform"); -/* - * The following ACPI IDs are known to be suitable for representing as - * platform devices. - */ -static const struct acpi_device_id acpi_platform_device_ids[] = { - - { "PNP0D40" }, - { "ACPI0003" }, - { "VPC2004" }, - { "BCM4752" }, - - /* Intel Smart Sound Technology */ - { "INT33C8" }, - { "80860F28" }, - - { } +static const struct acpi_device_id forbidden_id_list[] = { + {"PNP0000", 0}, /* PIC */ + {"PNP0100", 0}, /* Timer */ + {"PNP0200", 0}, /* AT DMA Controller */ + {"", 0}, }; /** * acpi_create_platform_device - Create platform device for ACPI device node * @adev: ACPI device node to create a platform device for. - * @id: ACPI device ID used to match @adev. * * Check if the given @adev can be represented as a platform device and, if * that's the case, create and register a platform device, populate its common @@ -51,8 +39,7 @@ static const struct acpi_device_id acpi_platform_device_ids[] = { * * Name of the platform device will be the same as @adev's. */ -int acpi_create_platform_device(struct acpi_device *adev, - const struct acpi_device_id *id) +struct platform_device *acpi_create_platform_device(struct acpi_device *adev) { struct platform_device *pdev = NULL; struct acpi_device *acpi_parent; @@ -64,19 +51,22 @@ int acpi_create_platform_device(struct acpi_device *adev, /* If the ACPI node already has a physical device attached, skip it. */ if (adev->physical_node_count) - return 0; + return NULL; + + if (!acpi_match_device_ids(adev, forbidden_id_list)) + return ERR_PTR(-EINVAL); INIT_LIST_HEAD(&resource_list); count = acpi_dev_get_resources(adev, &resource_list, NULL, NULL); if (count < 0) { - return 0; + return NULL; } else if (count > 0) { resources = kmalloc(count * sizeof(struct resource), GFP_KERNEL); if (!resources) { dev_err(&adev->dev, "No memory for resources\n"); acpi_dev_free_resource_list(&resource_list); - return -ENOMEM; + return ERR_PTR(-ENOMEM); } count = 0; list_for_each_entry(rentry, &resource_list, node) @@ -113,25 +103,13 @@ int acpi_create_platform_device(struct acpi_device *adev, pdevinfo.num_res = count; pdevinfo.acpi_node.companion = adev; pdev = platform_device_register_full(&pdevinfo); - if (IS_ERR(pdev)) { + if (IS_ERR(pdev)) dev_err(&adev->dev, "platform device creation failed: %ld\n", PTR_ERR(pdev)); - pdev = NULL; - } else { + else dev_dbg(&adev->dev, "created platform device %s\n", dev_name(&pdev->dev)); - } kfree(resources); - return 1; -} - -static struct acpi_scan_handler platform_handler = { - .ids = acpi_platform_device_ids, - .attach = acpi_create_platform_device, -}; - -void __init acpi_platform_init(void) -{ - acpi_scan_add_handler(&platform_handler); + return pdev; } diff --git a/drivers/acpi/acpi_pnp.c b/drivers/acpi/acpi_pnp.c new file mode 100644 index 00000000000..4ddb0dca56f --- /dev/null +++ b/drivers/acpi/acpi_pnp.c @@ -0,0 +1,397 @@ +/* + * ACPI support for PNP bus type + * + * Copyright (C) 2014, Intel Corporation + * Authors: Zhang Rui <rui.zhang@intel.com> + * Rafael J. Wysocki <rafael.j.wysocki@intel.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/acpi.h> +#include <linux/module.h> + +static const struct acpi_device_id acpi_pnp_device_ids[] = { + /* soc_button_array */ + {"PNP0C40"}, + /* pata_isapnp */ + {"PNP0600"}, /* Generic ESDI/IDE/ATA compatible hard disk controller */ + /* floppy */ + {"PNP0700"}, + /* ipmi_si */ + {"IPI0001"}, + /* tpm_inf_pnp */ + {"IFX0101"}, /* Infineon TPMs */ + {"IFX0102"}, /* Infineon TPMs */ + /*tpm_tis */ + {"PNP0C31"}, /* TPM */ + {"ATM1200"}, /* Atmel */ + {"IFX0102"}, /* Infineon */ + {"BCM0101"}, /* Broadcom */ + {"BCM0102"}, /* Broadcom */ + {"NSC1200"}, /* National */ + {"ICO0102"}, /* Intel */ + /* ide */ + {"PNP0600"}, /* Generic ESDI/IDE/ATA compatible hard disk controller */ + /* ns558 */ + {"ASB16fd"}, /* AdLib NSC16 */ + {"AZT3001"}, /* AZT1008 */ + {"CDC0001"}, /* Opl3-SAx */ + {"CSC0001"}, /* CS4232 */ + {"CSC000f"}, /* CS4236 */ + {"CSC0101"}, /* CS4327 */ + {"CTL7001"}, /* SB16 */ + {"CTL7002"}, /* AWE64 */ + {"CTL7005"}, /* Vibra16 */ + {"ENS2020"}, /* SoundscapeVIVO */ + {"ESS0001"}, /* ES1869 */ + {"ESS0005"}, /* ES1878 */ + {"ESS6880"}, /* ES688 */ + {"IBM0012"}, /* CS4232 */ + {"OPT0001"}, /* OPTi Audio16 */ + {"YMH0006"}, /* Opl3-SA */ + {"YMH0022"}, /* Opl3-SAx */ + {"PNPb02f"}, /* Generic */ + /* i8042 kbd */ + {"PNP0300"}, + {"PNP0301"}, + {"PNP0302"}, + {"PNP0303"}, + {"PNP0304"}, + {"PNP0305"}, + {"PNP0306"}, + {"PNP0309"}, + {"PNP030a"}, + {"PNP030b"}, + {"PNP0320"}, + {"PNP0343"}, + {"PNP0344"}, + {"PNP0345"}, + {"CPQA0D7"}, + /* i8042 aux */ + {"AUI0200"}, + {"FJC6000"}, + {"FJC6001"}, + {"PNP0f03"}, + {"PNP0f0b"}, + {"PNP0f0e"}, + {"PNP0f12"}, + {"PNP0f13"}, + {"PNP0f19"}, + {"PNP0f1c"}, + {"SYN0801"}, + /* fcpnp */ + {"AVM0900"}, + /* radio-cadet */ + {"MSM0c24"}, /* ADS Cadet AM/FM Radio Card */ + /* radio-gemtek */ + {"ADS7183"}, /* AOpen FX-3D/Pro Radio */ + /* radio-sf16fmr2 */ + {"MFRad13"}, /* tuner subdevice of SF16-FMD2 */ + /* ene_ir */ + {"ENE0100"}, + {"ENE0200"}, + {"ENE0201"}, + {"ENE0202"}, + /* fintek-cir */ + {"FIT0002"}, /* CIR */ + /* ite-cir */ + {"ITE8704"}, /* Default model */ + {"ITE8713"}, /* CIR found in EEEBox 1501U */ + {"ITE8708"}, /* Bridged IT8512 */ + {"ITE8709"}, /* SRAM-Bridged IT8512 */ + /* nuvoton-cir */ + {"WEC0530"}, /* CIR */ + {"NTN0530"}, /* CIR for new chip's pnp id */ + /* Winbond CIR */ + {"WEC1022"}, + /* wbsd */ + {"WEC0517"}, + {"WEC0518"}, + /* Winbond CIR */ + {"TCM5090"}, /* 3Com Etherlink III (TP) */ + {"TCM5091"}, /* 3Com Etherlink III */ + {"TCM5094"}, /* 3Com Etherlink III (combo) */ + {"TCM5095"}, /* 3Com Etherlink III (TPO) */ + {"TCM5098"}, /* 3Com Etherlink III (TPC) */ + {"PNP80f7"}, /* 3Com Etherlink III compatible */ + {"PNP80f8"}, /* 3Com Etherlink III compatible */ + /* nsc-ircc */ + {"NSC6001"}, + {"HWPC224"}, + {"IBM0071"}, + /* smsc-ircc2 */ + {"SMCf010"}, + /* sb1000 */ + {"GIC1000"}, + /* parport_pc */ + {"PNP0400"}, /* Standard LPT Printer Port */ + {"PNP0401"}, /* ECP Printer Port */ + /* apple-gmux */ + {"APP000B"}, + /* fujitsu-laptop.c */ + {"FUJ02bf"}, + {"FUJ02B1"}, + {"FUJ02E3"}, + /* system */ + {"PNP0c02"}, /* General ID for reserving resources */ + {"PNP0c01"}, /* memory controller */ + /* rtc_cmos */ + {"PNP0b00"}, + {"PNP0b01"}, + {"PNP0b02"}, + /* c6xdigio */ + {"PNP0400"}, /* Standard LPT Printer Port */ + {"PNP0401"}, /* ECP Printer Port */ + /* ni_atmio.c */ + {"NIC1900"}, + {"NIC2400"}, + {"NIC2500"}, + {"NIC2600"}, + {"NIC2700"}, + /* serial */ + {"AAC000F"}, /* Archtek America Corp. Archtek SmartLink Modem 3334BT Plug & Play */ + {"ADC0001"}, /* Anchor Datacomm BV. SXPro 144 External Data Fax Modem Plug & Play */ + {"ADC0002"}, /* SXPro 288 External Data Fax Modem Plug & Play */ + {"AEI0250"}, /* PROLiNK 1456VH ISA PnP K56flex Fax Modem */ + {"AEI1240"}, /* Actiontec ISA PNP 56K X2 Fax Modem */ + {"AKY1021"}, /* Rockwell 56K ACF II Fax+Data+Voice Modem */ + {"AZT4001"}, /* AZT3005 PnP SOUND DEVICE */ + {"BDP3336"}, /* Best Data Products Inc. Smart One 336F PnP Modem */ + {"BRI0A49"}, /* Boca Complete Ofc Communicator 14.4 Data-FAX */ + {"BRI1400"}, /* Boca Research 33,600 ACF Modem */ + {"BRI3400"}, /* Boca 33.6 Kbps Internal FD34FSVD */ + {"BRI0A49"}, /* Boca 33.6 Kbps Internal FD34FSVD */ + {"BDP3336"}, /* Best Data Products Inc. Smart One 336F PnP Modem */ + {"CPI4050"}, /* Computer Peripherals Inc. EuroViVa CommCenter-33.6 SP PnP */ + {"CTL3001"}, /* Creative Labs Phone Blaster 28.8 DSVD PnP Voice */ + {"CTL3011"}, /* Creative Labs Modem Blaster 28.8 DSVD PnP Voice */ + {"DAV0336"}, /* Davicom ISA 33.6K Modem */ + {"DMB1032"}, /* Creative Modem Blaster Flash56 DI5601-1 */ + {"DMB2001"}, /* Creative Modem Blaster V.90 DI5660 */ + {"ETT0002"}, /* E-Tech CyberBULLET PC56RVP */ + {"FUJ0202"}, /* Fujitsu 33600 PnP-I2 R Plug & Play */ + {"FUJ0205"}, /* Fujitsu FMV-FX431 Plug & Play */ + {"FUJ0206"}, /* Fujitsu 33600 PnP-I4 R Plug & Play */ + {"FUJ0209"}, /* Fujitsu Fax Voice 33600 PNP-I5 R Plug & Play */ + {"GVC000F"}, /* Archtek SmartLink Modem 3334BT Plug & Play */ + {"GVC0303"}, /* Archtek SmartLink Modem 3334BRV 33.6K Data Fax Voice */ + {"HAY0001"}, /* Hayes Optima 288 V.34-V.FC + FAX + Voice Plug & Play */ + {"HAY000C"}, /* Hayes Optima 336 V.34 + FAX + Voice PnP */ + {"HAY000D"}, /* Hayes Optima 336B V.34 + FAX + Voice PnP */ + {"HAY5670"}, /* Hayes Accura 56K Ext Fax Modem PnP */ + {"HAY5674"}, /* Hayes Accura 56K Ext Fax Modem PnP */ + {"HAY5675"}, /* Hayes Accura 56K Fax Modem PnP */ + {"HAYF000"}, /* Hayes 288, V.34 + FAX */ + {"HAYF001"}, /* Hayes Optima 288 V.34 + FAX + Voice, Plug & Play */ + {"IBM0033"}, /* IBM Thinkpad 701 Internal Modem Voice */ + {"PNP4972"}, /* Intermec CV60 touchscreen port */ + {"IXDC801"}, /* Intertex 28k8 33k6 Voice EXT PnP */ + {"IXDC901"}, /* Intertex 33k6 56k Voice EXT PnP */ + {"IXDD801"}, /* Intertex 28k8 33k6 Voice SP EXT PnP */ + {"IXDD901"}, /* Intertex 33k6 56k Voice SP EXT PnP */ + {"IXDF401"}, /* Intertex 28k8 33k6 Voice SP INT PnP */ + {"IXDF801"}, /* Intertex 28k8 33k6 Voice SP EXT PnP */ + {"IXDF901"}, /* Intertex 33k6 56k Voice SP EXT PnP */ + {"KOR4522"}, /* KORTEX 28800 Externe PnP */ + {"KORF661"}, /* KXPro 33.6 Vocal ASVD PnP */ + {"LAS4040"}, /* LASAT Internet 33600 PnP */ + {"LAS4540"}, /* Lasat Safire 560 PnP */ + {"LAS5440"}, /* Lasat Safire 336 PnP */ + {"MNP0281"}, /* Microcom TravelPorte FAST V.34 Plug & Play */ + {"MNP0336"}, /* Microcom DeskPorte V.34 FAST or FAST+ Plug & Play */ + {"MNP0339"}, /* Microcom DeskPorte FAST EP 28.8 Plug & Play */ + {"MNP0342"}, /* Microcom DeskPorte 28.8P Plug & Play */ + {"MNP0500"}, /* Microcom DeskPorte FAST ES 28.8 Plug & Play */ + {"MNP0501"}, /* Microcom DeskPorte FAST ES 28.8 Plug & Play */ + {"MNP0502"}, /* Microcom DeskPorte 28.8S Internal Plug & Play */ + {"MOT1105"}, /* Motorola BitSURFR Plug & Play */ + {"MOT1111"}, /* Motorola TA210 Plug & Play */ + {"MOT1114"}, /* Motorola HMTA 200 (ISDN) Plug & Play */ + {"MOT1115"}, /* Motorola BitSURFR Plug & Play */ + {"MOT1190"}, /* Motorola Lifestyle 28.8 Internal */ + {"MOT1501"}, /* Motorola V.3400 Plug & Play */ + {"MOT1502"}, /* Motorola Lifestyle 28.8 V.34 Plug & Play */ + {"MOT1505"}, /* Motorola Power 28.8 V.34 Plug & Play */ + {"MOT1509"}, /* Motorola ModemSURFR External 28.8 Plug & Play */ + {"MOT150A"}, /* Motorola Premier 33.6 Desktop Plug & Play */ + {"MOT150F"}, /* Motorola VoiceSURFR 56K External PnP */ + {"MOT1510"}, /* Motorola ModemSURFR 56K External PnP */ + {"MOT1550"}, /* Motorola ModemSURFR 56K Internal PnP */ + {"MOT1560"}, /* Motorola ModemSURFR Internal 28.8 Plug & Play */ + {"MOT1580"}, /* Motorola Premier 33.6 Internal Plug & Play */ + {"MOT15B0"}, /* Motorola OnlineSURFR 28.8 Internal Plug & Play */ + {"MOT15F0"}, /* Motorola VoiceSURFR 56K Internal PnP */ + {"MVX00A1"}, /* Deskline K56 Phone System PnP */ + {"MVX00F2"}, /* PC Rider K56 Phone System PnP */ + {"nEC8241"}, /* NEC 98NOTE SPEAKER PHONE FAX MODEM(33600bps) */ + {"PMC2430"}, /* Pace 56 Voice Internal Plug & Play Modem */ + {"PNP0500"}, /* Generic standard PC COM port */ + {"PNP0501"}, /* Generic 16550A-compatible COM port */ + {"PNPC000"}, /* Compaq 14400 Modem */ + {"PNPC001"}, /* Compaq 2400/9600 Modem */ + {"PNPC031"}, /* Dial-Up Networking Serial Cable between 2 PCs */ + {"PNPC032"}, /* Dial-Up Networking Parallel Cable between 2 PCs */ + {"PNPC100"}, /* Standard 9600 bps Modem */ + {"PNPC101"}, /* Standard 14400 bps Modem */ + {"PNPC102"}, /* Standard 28800 bps Modem */ + {"PNPC103"}, /* Standard Modem */ + {"PNPC104"}, /* Standard 9600 bps Modem */ + {"PNPC105"}, /* Standard 14400 bps Modem */ + {"PNPC106"}, /* Standard 28800 bps Modem */ + {"PNPC107"}, /* Standard Modem */ + {"PNPC108"}, /* Standard 9600 bps Modem */ + {"PNPC109"}, /* Standard 14400 bps Modem */ + {"PNPC10A"}, /* Standard 28800 bps Modem */ + {"PNPC10B"}, /* Standard Modem */ + {"PNPC10C"}, /* Standard 9600 bps Modem */ + {"PNPC10D"}, /* Standard 14400 bps Modem */ + {"PNPC10E"}, /* Standard 28800 bps Modem */ + {"PNPC10F"}, /* Standard Modem */ + {"PNP2000"}, /* Standard PCMCIA Card Modem */ + {"ROK0030"}, /* Rockwell 33.6 DPF Internal PnP, Modular Technology 33.6 Internal PnP */ + {"ROK0100"}, /* KORTEX 14400 Externe PnP */ + {"ROK4120"}, /* Rockwell 28.8 */ + {"ROK4920"}, /* Viking 28.8 INTERNAL Fax+Data+Voice PnP */ + {"RSS00A0"}, /* Rockwell 33.6 DPF External PnP, BT Prologue 33.6 External PnP, Modular Technology 33.6 External PnP */ + {"RSS0262"}, /* Viking 56K FAX INT */ + {"RSS0250"}, /* K56 par,VV,Voice,Speakphone,AudioSpan,PnP */ + {"SUP1310"}, /* SupraExpress 28.8 Data/Fax PnP modem */ + {"SUP1381"}, /* SupraExpress 336i PnP Voice Modem */ + {"SUP1421"}, /* SupraExpress 33.6 Data/Fax PnP modem */ + {"SUP1590"}, /* SupraExpress 33.6 Data/Fax PnP modem */ + {"SUP1620"}, /* SupraExpress 336i Sp ASVD */ + {"SUP1760"}, /* SupraExpress 33.6 Data/Fax PnP modem */ + {"SUP2171"}, /* SupraExpress 56i Sp Intl */ + {"TEX0011"}, /* Phoebe Micro 33.6 Data Fax 1433VQH Plug & Play */ + {"UAC000F"}, /* Archtek SmartLink Modem 3334BT Plug & Play */ + {"USR0000"}, /* 3Com Corp. Gateway Telepath IIvi 33.6 */ + {"USR0002"}, /* U.S. Robotics Sporster 33.6K Fax INT PnP */ + {"USR0004"}, /* Sportster Vi 14.4 PnP FAX Voicemail */ + {"USR0006"}, /* U.S. Robotics 33.6K Voice INT PnP */ + {"USR0007"}, /* U.S. Robotics 33.6K Voice EXT PnP */ + {"USR0009"}, /* U.S. Robotics Courier V.Everything INT PnP */ + {"USR2002"}, /* U.S. Robotics 33.6K Voice INT PnP */ + {"USR2070"}, /* U.S. Robotics 56K Voice INT PnP */ + {"USR2080"}, /* U.S. Robotics 56K Voice EXT PnP */ + {"USR3031"}, /* U.S. Robotics 56K FAX INT */ + {"USR3050"}, /* U.S. Robotics 56K FAX INT */ + {"USR3070"}, /* U.S. Robotics 56K Voice INT PnP */ + {"USR3080"}, /* U.S. Robotics 56K Voice EXT PnP */ + {"USR3090"}, /* U.S. Robotics 56K Voice INT PnP */ + {"USR9100"}, /* U.S. Robotics 56K Message */ + {"USR9160"}, /* U.S. Robotics 56K FAX EXT PnP */ + {"USR9170"}, /* U.S. Robotics 56K FAX INT PnP */ + {"USR9180"}, /* U.S. Robotics 56K Voice EXT PnP */ + {"USR9190"}, /* U.S. Robotics 56K Voice INT PnP */ + {"WACFXXX"}, /* Wacom tablets */ + {"FPI2002"}, /* Compaq touchscreen */ + {"FUJ02B2"}, /* Fujitsu Stylistic touchscreens */ + {"FUJ02B3"}, + {"FUJ02B4"}, /* Fujitsu Stylistic LT touchscreens */ + {"FUJ02B6"}, /* Passive Fujitsu Stylistic touchscreens */ + {"FUJ02B7"}, + {"FUJ02B8"}, + {"FUJ02B9"}, + {"FUJ02BC"}, + {"FUJ02E5"}, /* Fujitsu Wacom Tablet PC device */ + {"FUJ02E6"}, /* Fujitsu P-series tablet PC device */ + {"FUJ02E7"}, /* Fujitsu Wacom 2FGT Tablet PC device */ + {"FUJ02E9"}, /* Fujitsu Wacom 1FGT Tablet PC device */ + {"LTS0001"}, /* LG C1 EXPRESS DUAL (C1-PB11A3) touch screen (actually a FUJ02E6 in disguise) */ + {"WCI0003"}, /* Rockwell's (PORALiNK) 33600 INT PNP */ + {"WEC1022"}, /* Winbond CIR port, should not be probed. We should keep track of it to prevent the legacy serial driver from probing it */ + /* scl200wdt */ + {"NSC0800"}, /* National Semiconductor PC87307/PC97307 watchdog component */ + /* mpu401 */ + {"PNPb006"}, + /* cs423x-pnpbios */ + {"CSC0100"}, + {"CSC0000"}, + {"GIM0100"}, /* Guillemot Turtlebeach something appears to be cs4232 compatible */ + /* es18xx-pnpbios */ + {"ESS1869"}, + {"ESS1879"}, + /* snd-opl3sa2-pnpbios */ + {"YMH0021"}, + {"NMX2210"}, /* Gateway Solo 2500 */ + {""}, +}; + +static bool is_hex_digit(char c) +{ + return (c >= 0 && c <= '9') || (c >= 'A' && c <= 'F'); +} + +static bool matching_id(char *idstr, char *list_id) +{ + int i; + + if (memcmp(idstr, list_id, 3)) + return false; + + for (i = 3; i < 7; i++) { + char c = toupper(idstr[i]); + + if (!is_hex_digit(c) + || (list_id[i] != 'X' && c != toupper(list_id[i]))) + return false; + } + return true; +} + +static bool acpi_pnp_match(char *idstr, const struct acpi_device_id **matchid) +{ + const struct acpi_device_id *devid; + + for (devid = acpi_pnp_device_ids; devid->id[0]; devid++) + if (matching_id(idstr, (char *)devid->id)) { + if (matchid) + *matchid = devid; + + return true; + } + + return false; +} + +static int acpi_pnp_attach(struct acpi_device *adev, + const struct acpi_device_id *id) +{ + return 1; +} + +static struct acpi_scan_handler acpi_pnp_handler = { + .ids = acpi_pnp_device_ids, + .match = acpi_pnp_match, + .attach = acpi_pnp_attach, +}; + +/* + * For CMOS RTC devices, the PNP ACPI scan handler does not work, because + * there is a CMOS RTC ACPI scan handler installed already, so we need to + * check those devices and enumerate them to the PNP bus directly. + */ +static int is_cmos_rtc_device(struct acpi_device *adev) +{ + struct acpi_device_id ids[] = { + { "PNP0B00" }, + { "PNP0B01" }, + { "PNP0B02" }, + {""}, + }; + return !acpi_match_device_ids(adev, ids); +} + +bool acpi_is_pnp_device(struct acpi_device *adev) +{ + return adev->handler == &acpi_pnp_handler || is_cmos_rtc_device(adev); +} +EXPORT_SYMBOL_GPL(acpi_is_pnp_device); + +void __init acpi_pnp_init(void) +{ + acpi_scan_add_handler(&acpi_pnp_handler); +} diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index 3c1d6b0c09a..1c085742644 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -170,6 +170,9 @@ static int acpi_processor_hotadd_init(struct acpi_processor *pr) acpi_status status; int ret; + if (pr->apic_id == -1) + return -ENODEV; + status = acpi_evaluate_integer(pr->handle, "_STA", NULL, &sta); if (ACPI_FAILURE(status) || !(sta & ACPI_STA_DEVICE_PRESENT)) return -ENODEV; @@ -212,7 +215,7 @@ static int acpi_processor_get_info(struct acpi_device *device) union acpi_object object = { 0 }; struct acpi_buffer buffer = { sizeof(union acpi_object), &object }; struct acpi_processor *pr = acpi_driver_data(device); - int cpu_index, device_declaration = 0; + int apic_id, cpu_index, device_declaration = 0; acpi_status status = AE_OK; static int cpu0_initialized; unsigned long long value; @@ -258,18 +261,19 @@ static int acpi_processor_get_info(struct acpi_device *device) device_declaration = 1; pr->acpi_id = value; } - pr->apic_id = acpi_get_apicid(pr->handle, device_declaration, - pr->acpi_id); - cpu_index = acpi_map_cpuid(pr->apic_id, pr->acpi_id); - - /* Handle UP system running SMP kernel, with no LAPIC in MADT */ - if (!cpu0_initialized && (cpu_index == -1) && - (num_online_cpus() == 1)) { - cpu_index = 0; - } - cpu0_initialized = 1; + apic_id = acpi_get_apicid(pr->handle, device_declaration, pr->acpi_id); + if (apic_id < 0) + acpi_handle_debug(pr->handle, "failed to get CPU APIC ID.\n"); + pr->apic_id = apic_id; + cpu_index = acpi_map_cpuid(pr->apic_id, pr->acpi_id); + if (!cpu0_initialized && !acpi_lapic) { + cpu0_initialized = 1; + /* Handle UP system running SMP kernel, with no LAPIC in MADT */ + if ((cpu_index == -1) && (num_online_cpus() == 1)) + cpu_index = 0; + } pr->id = cpu_index; /* @@ -282,6 +286,7 @@ static int acpi_processor_get_info(struct acpi_device *device) if (ret) return ret; } + /* * On some boxes several processors use the same processor bus id. * But they are located in different scope. For example: @@ -395,12 +400,11 @@ static int acpi_processor_add(struct acpi_device *device, goto err; } - result = acpi_bind_one(dev, pr->handle); + result = acpi_bind_one(dev, device); if (result) goto err; pr->dev = dev; - dev->offline = pr->flags.need_hotplug_init; /* Trigger the processor driver's .probe() if present. */ if (device_attach(dev) >= 0) diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile index 438304086ff..8bb43f06e11 100644 --- a/drivers/acpi/acpica/Makefile +++ b/drivers/acpi/acpica/Makefile @@ -122,6 +122,8 @@ acpi-y += \ rsaddr.o \ rscalc.o \ rscreate.o \ + rsdump.o \ + rsdumpinfo.o \ rsinfo.o \ rsio.o \ rsirq.o \ @@ -132,9 +134,8 @@ acpi-y += \ rsutils.o \ rsxface.o -acpi-$(ACPI_FUTURE_USAGE) += rsdump.o rsdumpinfo.o - acpi-y += \ + tbdata.o \ tbfadt.o \ tbfind.o \ tbinstal.o \ diff --git a/drivers/acpi/acpica/acapps.h b/drivers/acpi/acpica/acapps.h new file mode 100644 index 00000000000..8698ffba6f3 --- /dev/null +++ b/drivers/acpi/acpica/acapps.h @@ -0,0 +1,170 @@ +/****************************************************************************** + * + * Module Name: acapps - common include for ACPI applications/tools + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2014, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#ifndef _ACAPPS +#define _ACAPPS + +/* Common info for tool signons */ + +#define ACPICA_NAME "Intel ACPI Component Architecture" +#define ACPICA_COPYRIGHT "Copyright (c) 2000 - 2014 Intel Corporation" + +#if ACPI_MACHINE_WIDTH == 64 +#define ACPI_WIDTH "-64" + +#elif ACPI_MACHINE_WIDTH == 32 +#define ACPI_WIDTH "-32" + +#else +#error unknown ACPI_MACHINE_WIDTH +#define ACPI_WIDTH "-??" + +#endif + +/* Macros for signons and file headers */ + +#define ACPI_COMMON_SIGNON(utility_name) \ + "\n%s\n%s version %8.8X%s [%s]\n%s\n\n", \ + ACPICA_NAME, \ + utility_name, ((u32) ACPI_CA_VERSION), ACPI_WIDTH, __DATE__, \ + ACPICA_COPYRIGHT + +#define ACPI_COMMON_HEADER(utility_name, prefix) \ + "%s%s\n%s%s version %8.8X%s [%s]\n%s%s\n%s\n", \ + prefix, ACPICA_NAME, \ + prefix, utility_name, ((u32) ACPI_CA_VERSION), ACPI_WIDTH, __DATE__, \ + prefix, ACPICA_COPYRIGHT, \ + prefix + +/* Macros for usage messages */ + +#define ACPI_USAGE_HEADER(usage) \ + printf ("Usage: %s\nOptions:\n", usage); + +#define ACPI_OPTION(name, description) \ + printf (" %-18s%s\n", name, description); + +#define FILE_SUFFIX_DISASSEMBLY "dsl" +#define ACPI_TABLE_FILE_SUFFIX ".dat" + +/* + * getopt + */ +int acpi_getopt(int argc, char **argv, char *opts); + +int acpi_getopt_argument(int argc, char **argv); + +extern int acpi_gbl_optind; +extern int acpi_gbl_opterr; +extern int acpi_gbl_sub_opt_char; +extern char *acpi_gbl_optarg; + +/* + * cmfsize - Common get file size function + */ +u32 cm_get_file_size(FILE * file); + +#ifndef ACPI_DUMP_APP +/* + * adisasm + */ +acpi_status +ad_aml_disassemble(u8 out_to_file, + char *filename, char *prefix, char **out_filename); + +void ad_print_statistics(void); + +acpi_status ad_find_dsdt(u8 **dsdt_ptr, u32 *dsdt_length); + +void ad_dump_tables(void); + +acpi_status ad_get_local_tables(void); + +acpi_status +ad_parse_table(struct acpi_table_header *table, + acpi_owner_id * owner_id, u8 load_table, u8 external); + +acpi_status ad_display_tables(char *filename, struct acpi_table_header *table); + +acpi_status ad_display_statistics(void); + +/* + * adwalk + */ +void +acpi_dm_cross_reference_namespace(union acpi_parse_object *parse_tree_root, + struct acpi_namespace_node *namespace_root, + acpi_owner_id owner_id); + +void acpi_dm_dump_tree(union acpi_parse_object *origin); + +void acpi_dm_find_orphan_methods(union acpi_parse_object *origin); + +void +acpi_dm_finish_namespace_load(union acpi_parse_object *parse_tree_root, + struct acpi_namespace_node *namespace_root, + acpi_owner_id owner_id); + +void +acpi_dm_convert_resource_indexes(union acpi_parse_object *parse_tree_root, + struct acpi_namespace_node *namespace_root); + +/* + * adfile + */ +acpi_status ad_initialize(void); + +char *fl_generate_filename(char *input_filename, char *suffix); + +acpi_status +fl_split_input_pathname(char *input_path, + char **out_directory_path, char **out_filename); + +char *ad_generate_filename(char *prefix, char *table_id); + +void +ad_write_table(struct acpi_table_header *table, + u32 length, char *table_name, char *oem_table_id); +#endif + +#endif /* _ACAPPS */ diff --git a/drivers/acpi/acpica/accommon.h b/drivers/acpi/acpica/accommon.h index 8a6c4a0d22d..6f1c616910a 100644 --- a/drivers/acpi/acpica/accommon.h +++ b/drivers/acpi/acpica/accommon.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h index a9fd0b87206..68a91eb0fa4 100644 --- a/drivers/acpi/acpica/acdebug.h +++ b/drivers/acpi/acpica/acdebug.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -113,9 +113,10 @@ void acpi_db_display_handlers(void); ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_db_generate_gpe(char *gpe_arg, char *block_arg)) - ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_db_generate_sci(void)) +void acpi_db_execute_test(char *type_arg); + /* * dbconvert - miscellaneous conversion routines */ diff --git a/drivers/acpi/acpica/acdispat.h b/drivers/acpi/acpica/acdispat.h index 427db72a630..d3e2cc395d7 100644 --- a/drivers/acpi/acpica/acdispat.h +++ b/drivers/acpi/acpica/acdispat.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -139,20 +139,21 @@ acpi_ds_init_field_objects(union acpi_parse_object *op, struct acpi_walk_state *walk_state); /* - * dsload - Parser/Interpreter interface, pass 1 namespace load callbacks + * dsload - Parser/Interpreter interface */ acpi_status acpi_ds_init_callbacks(struct acpi_walk_state *walk_state, u32 pass_number); +/* dsload - pass 1 namespace load callbacks */ + acpi_status acpi_ds_load1_begin_op(struct acpi_walk_state *walk_state, union acpi_parse_object **out_op); acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state); -/* - * dsload - Parser/Interpreter interface, pass 2 namespace load callbacks - */ +/* dsload - pass 2 namespace load callbacks */ + acpi_status acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state, union acpi_parse_object **out_op); @@ -200,7 +201,9 @@ void acpi_ds_method_data_init(struct acpi_walk_state *walk_state); /* * dsmethod - Parser/Interpreter interface - control method parsing */ -acpi_status acpi_ds_parse_method(struct acpi_namespace_node *node); +acpi_status +acpi_ds_auto_serialize_method(struct acpi_namespace_node *node, + union acpi_operand_object *obj_desc); acpi_status acpi_ds_call_control_method(struct acpi_thread_state *thread, diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h index 41abe552c7a..7a7811a9fc2 100644 --- a/drivers/acpi/acpica/acevents.h +++ b/drivers/acpi/acpica/acevents.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -71,9 +71,8 @@ acpi_status acpi_ev_init_global_lock_handler(void); ACPI_HW_DEPENDENT_RETURN_OK(acpi_status acpi_ev_acquire_global_lock(u16 timeout)) - ACPI_HW_DEPENDENT_RETURN_OK(acpi_status acpi_ev_release_global_lock(void)) - acpi_status acpi_ev_remove_global_lock_handler(void); +acpi_status acpi_ev_remove_global_lock_handler(void); /* * evgpe - Low-level GPE support @@ -105,9 +104,10 @@ acpi_status acpi_ev_finish_gpe(struct acpi_gpe_event_info *gpe_event_info); */ acpi_status acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device, - struct acpi_generic_address *gpe_block_address, + u64 address, + u8 space_id, u32 register_count, - u8 gpe_block_base_number, + u16 gpe_block_base_number, u32 interrupt_number, struct acpi_gpe_block_info **return_gpe_block); @@ -133,7 +133,7 @@ acpi_status acpi_ev_gpe_initialize(void); ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_ev_update_gpes(acpi_owner_id table_owner_id)) - acpi_status +acpi_status acpi_ev_match_gpe_method(acpi_handle obj_handle, u32 level, void *context, void **return_value); @@ -149,7 +149,9 @@ acpi_status acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, struct acpi_gpe_block_info *gpe_block, void *context); -struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 interrupt_number); +acpi_status +acpi_ev_get_gpe_xrupt_block(u32 interrupt_number, + struct acpi_gpe_xrupt_info **gpe_xrupt_block); acpi_status acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt); diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index e9f1fc7f99c..115eedcade1 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -44,165 +44,42 @@ #ifndef __ACGLOBAL_H__ #define __ACGLOBAL_H__ -/* - * Ensure that the globals are actually defined and initialized only once. - * - * The use of these macros allows a single list of globals (here) in order - * to simplify maintenance of the code. - */ -#ifdef DEFINE_ACPI_GLOBALS -#define ACPI_EXTERN -#define ACPI_INIT_GLOBAL(a,b) a=b -#else -#define ACPI_EXTERN extern -#define ACPI_INIT_GLOBAL(a,b) a -#endif - -#ifdef DEFINE_ACPI_GLOBALS - -/* Public globals, available from outside ACPICA subsystem */ - /***************************************************************************** * - * Runtime configuration (static defaults that can be overriden at runtime) + * Globals related to the ACPI tables * ****************************************************************************/ -/* - * Enable "slack" in the AML interpreter? Default is FALSE, and the - * interpreter strictly follows the ACPI specification. Setting to TRUE - * allows the interpreter to ignore certain errors and/or bad AML constructs. - * - * Currently, these features are enabled by this flag: - * - * 1) Allow "implicit return" of last value in a control method - * 2) Allow access beyond the end of an operation region - * 3) Allow access to uninitialized locals/args (auto-init to integer 0) - * 4) Allow ANY object type to be a source operand for the Store() operator - * 5) Allow unresolved references (invalid target name) in package objects - * 6) Enable warning messages for behavior that is not ACPI spec compliant - */ -u8 ACPI_INIT_GLOBAL(acpi_gbl_enable_interpreter_slack, FALSE); - -/* - * Automatically serialize ALL control methods? Default is FALSE, meaning - * to use the Serialized/not_serialized method flags on a per method basis. - * Only change this if the ASL code is poorly written and cannot handle - * reentrancy even though methods are marked "NotSerialized". - */ -u8 ACPI_INIT_GLOBAL(acpi_gbl_all_methods_serialized, FALSE); - -/* - * Create the predefined _OSI method in the namespace? Default is TRUE - * because ACPI CA is fully compatible with other ACPI implementations. - * Changing this will revert ACPI CA (and machine ASL) to pre-OSI behavior. - */ -u8 ACPI_INIT_GLOBAL(acpi_gbl_create_osi_method, TRUE); - -/* - * Optionally use default values for the ACPI register widths. Set this to - * TRUE to use the defaults, if an FADT contains incorrect widths/lengths. - */ -u8 ACPI_INIT_GLOBAL(acpi_gbl_use_default_register_widths, TRUE); - -/* - * Optionally enable output from the AML Debug Object. - */ -bool ACPI_INIT_GLOBAL(acpi_gbl_enable_aml_debug_object, FALSE); - -/* - * Optionally copy the entire DSDT to local memory (instead of simply - * mapping it.) There are some BIOSs that corrupt or replace the original - * DSDT, creating the need for this option. Default is FALSE, do not copy - * the DSDT. - */ -u8 ACPI_INIT_GLOBAL(acpi_gbl_copy_dsdt_locally, FALSE); - -/* - * Optionally truncate I/O addresses to 16 bits. Provides compatibility - * with other ACPI implementations. NOTE: During ACPICA initialization, - * this value is set to TRUE if any Windows OSI strings have been - * requested by the BIOS. - */ -u8 ACPI_INIT_GLOBAL(acpi_gbl_truncate_io_addresses, FALSE); - -/* - * Disable runtime checking and repair of values returned by control methods. - * Use only if the repair is causing a problem on a particular machine. - */ -u8 ACPI_INIT_GLOBAL(acpi_gbl_disable_auto_repair, FALSE); - -/* - * Optionally do not load any SSDTs from the RSDT/XSDT during initialization. - * This can be useful for debugging ACPI problems on some machines. - */ -u8 ACPI_INIT_GLOBAL(acpi_gbl_disable_ssdt_table_load, FALSE); - -/* - * We keep track of the latest version of Windows that has been requested by - * the BIOS. - */ -u8 ACPI_INIT_GLOBAL(acpi_gbl_osi_data, 0); - -/* acpi_gbl_FADT is a local copy of the FADT, converted to a common format. */ +/* Master list of all ACPI tables that were found in the RSDT/XSDT */ -struct acpi_table_fadt acpi_gbl_FADT; -u32 acpi_current_gpe_count; -u32 acpi_gbl_trace_flags; -acpi_name acpi_gbl_trace_method_name; -u8 acpi_gbl_system_awake_and_running; +ACPI_GLOBAL(struct acpi_table_list, acpi_gbl_root_table_list); -/* - * ACPI 5.0 introduces the concept of a "reduced hardware platform", meaning - * that the ACPI hardware is no longer required. A flag in the FADT indicates - * a reduced HW machine, and that flag is duplicated here for convenience. - */ -u8 acpi_gbl_reduced_hardware; - -#endif /* DEFINE_ACPI_GLOBALS */ - -/* Do not disassemble buffers to resource descriptors */ - -ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_no_resource_disassembly, FALSE); - -/***************************************************************************** - * - * ACPI Table globals - * - ****************************************************************************/ +/* DSDT information. Used to check for DSDT corruption */ -/* - * acpi_gbl_root_table_list is the master list of ACPI tables that were - * found in the RSDT/XSDT. - */ -ACPI_EXTERN struct acpi_table_list acpi_gbl_root_table_list; +ACPI_GLOBAL(struct acpi_table_header *, acpi_gbl_DSDT); +ACPI_GLOBAL(struct acpi_table_header, acpi_gbl_original_dsdt_header); #if (!ACPI_REDUCED_HARDWARE) -ACPI_EXTERN struct acpi_table_facs *acpi_gbl_FACS; +ACPI_GLOBAL(struct acpi_table_facs *, acpi_gbl_FACS); #endif /* !ACPI_REDUCED_HARDWARE */ /* These addresses are calculated from the FADT Event Block addresses */ -ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1a_status; -ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1a_enable; - -ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1b_status; -ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1b_enable; +ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1a_status); +ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1a_enable); -/* DSDT information. Used to check for DSDT corruption */ - -ACPI_EXTERN struct acpi_table_header *acpi_gbl_DSDT; -ACPI_EXTERN struct acpi_table_header acpi_gbl_original_dsdt_header; +ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1b_status); +ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1b_enable); /* - * Handle both ACPI 1.0 and ACPI 2.0 Integer widths. The integer width is + * Handle both ACPI 1.0 and ACPI 2.0+ Integer widths. The integer width is * determined by the revision of the DSDT: If the DSDT revision is less than * 2, use only the lower 32 bits of the internal 64-bit Integer. */ -ACPI_EXTERN u8 acpi_gbl_integer_bit_width; -ACPI_EXTERN u8 acpi_gbl_integer_byte_width; -ACPI_EXTERN u8 acpi_gbl_integer_nybble_width; +ACPI_GLOBAL(u8, acpi_gbl_integer_bit_width); +ACPI_GLOBAL(u8, acpi_gbl_integer_byte_width); +ACPI_GLOBAL(u8, acpi_gbl_integer_nybble_width); /***************************************************************************** * @@ -215,36 +92,36 @@ ACPI_EXTERN u8 acpi_gbl_integer_nybble_width; * actual OS mutex handles, indexed by the local ACPI_MUTEX_HANDLEs. * (The table maps local handles to the real OS handles) */ -ACPI_EXTERN struct acpi_mutex_info acpi_gbl_mutex_info[ACPI_NUM_MUTEX]; +ACPI_GLOBAL(struct acpi_mutex_info, acpi_gbl_mutex_info[ACPI_NUM_MUTEX]); /* * Global lock mutex is an actual AML mutex object * Global lock semaphore works in conjunction with the actual global lock * Global lock spinlock is used for "pending" handshake */ -ACPI_EXTERN union acpi_operand_object *acpi_gbl_global_lock_mutex; -ACPI_EXTERN acpi_semaphore acpi_gbl_global_lock_semaphore; -ACPI_EXTERN acpi_spinlock acpi_gbl_global_lock_pending_lock; -ACPI_EXTERN u16 acpi_gbl_global_lock_handle; -ACPI_EXTERN u8 acpi_gbl_global_lock_acquired; -ACPI_EXTERN u8 acpi_gbl_global_lock_present; -ACPI_EXTERN u8 acpi_gbl_global_lock_pending; +ACPI_GLOBAL(union acpi_operand_object *, acpi_gbl_global_lock_mutex); +ACPI_GLOBAL(acpi_semaphore, acpi_gbl_global_lock_semaphore); +ACPI_GLOBAL(acpi_spinlock, acpi_gbl_global_lock_pending_lock); +ACPI_GLOBAL(u16, acpi_gbl_global_lock_handle); +ACPI_GLOBAL(u8, acpi_gbl_global_lock_acquired); +ACPI_GLOBAL(u8, acpi_gbl_global_lock_present); +ACPI_GLOBAL(u8, acpi_gbl_global_lock_pending); /* * Spinlocks are used for interfaces that can be possibly called at * interrupt level */ -ACPI_EXTERN acpi_spinlock acpi_gbl_gpe_lock; /* For GPE data structs and registers */ -ACPI_EXTERN acpi_spinlock acpi_gbl_hardware_lock; /* For ACPI H/W except GPE registers */ -ACPI_EXTERN acpi_spinlock acpi_gbl_reference_count_lock; +ACPI_GLOBAL(acpi_spinlock, acpi_gbl_gpe_lock); /* For GPE data structs and registers */ +ACPI_GLOBAL(acpi_spinlock, acpi_gbl_hardware_lock); /* For ACPI H/W except GPE registers */ +ACPI_GLOBAL(acpi_spinlock, acpi_gbl_reference_count_lock); /* Mutex for _OSI support */ -ACPI_EXTERN acpi_mutex acpi_gbl_osi_mutex; +ACPI_GLOBAL(acpi_mutex, acpi_gbl_osi_mutex); /* Reader/Writer lock is used for namespace walk and dynamic table unload */ -ACPI_EXTERN struct acpi_rw_lock acpi_gbl_namespace_rw_lock; +ACPI_GLOBAL(struct acpi_rw_lock, acpi_gbl_namespace_rw_lock); /***************************************************************************** * @@ -254,70 +131,67 @@ ACPI_EXTERN struct acpi_rw_lock acpi_gbl_namespace_rw_lock; /* Object caches */ -ACPI_EXTERN acpi_cache_t *acpi_gbl_namespace_cache; -ACPI_EXTERN acpi_cache_t *acpi_gbl_state_cache; -ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_cache; -ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_ext_cache; -ACPI_EXTERN acpi_cache_t *acpi_gbl_operand_cache; +ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_namespace_cache); +ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_state_cache); +ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_ps_node_cache); +ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_ps_node_ext_cache); +ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_operand_cache); + +/* System */ + +ACPI_INIT_GLOBAL(u32, acpi_gbl_startup_flags, 0); +ACPI_INIT_GLOBAL(u8, acpi_gbl_shutdown, TRUE); /* Global handlers */ -ACPI_EXTERN struct acpi_global_notify_handler acpi_gbl_global_notify[2]; -ACPI_EXTERN acpi_exception_handler acpi_gbl_exception_handler; -ACPI_EXTERN acpi_init_handler acpi_gbl_init_handler; -ACPI_EXTERN acpi_table_handler acpi_gbl_table_handler; -ACPI_EXTERN void *acpi_gbl_table_handler_context; -ACPI_EXTERN struct acpi_walk_state *acpi_gbl_breakpoint_walk; -ACPI_EXTERN acpi_interface_handler acpi_gbl_interface_handler; -ACPI_EXTERN struct acpi_sci_handler_info *acpi_gbl_sci_handler_list; +ACPI_GLOBAL(struct acpi_global_notify_handler, acpi_gbl_global_notify[2]); +ACPI_GLOBAL(acpi_exception_handler, acpi_gbl_exception_handler); +ACPI_GLOBAL(acpi_init_handler, acpi_gbl_init_handler); +ACPI_GLOBAL(acpi_table_handler, acpi_gbl_table_handler); +ACPI_GLOBAL(void *, acpi_gbl_table_handler_context); +ACPI_GLOBAL(acpi_interface_handler, acpi_gbl_interface_handler); +ACPI_GLOBAL(struct acpi_sci_handler_info *, acpi_gbl_sci_handler_list); /* Owner ID support */ -ACPI_EXTERN u32 acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS]; -ACPI_EXTERN u8 acpi_gbl_last_owner_id_index; -ACPI_EXTERN u8 acpi_gbl_next_owner_id_offset; +ACPI_GLOBAL(u32, acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS]); +ACPI_GLOBAL(u8, acpi_gbl_last_owner_id_index); +ACPI_GLOBAL(u8, acpi_gbl_next_owner_id_offset); /* Initialization sequencing */ -ACPI_EXTERN u8 acpi_gbl_reg_methods_executed; +ACPI_GLOBAL(u8, acpi_gbl_reg_methods_executed); /* Misc */ -ACPI_EXTERN u32 acpi_gbl_original_mode; -ACPI_EXTERN u32 acpi_gbl_rsdp_original_location; -ACPI_EXTERN u32 acpi_gbl_ns_lookup_count; -ACPI_EXTERN u32 acpi_gbl_ps_find_count; -ACPI_EXTERN u16 acpi_gbl_pm1_enable_register_save; -ACPI_EXTERN u8 acpi_gbl_debugger_configuration; -ACPI_EXTERN u8 acpi_gbl_step_to_next_call; -ACPI_EXTERN u8 acpi_gbl_acpi_hardware_present; -ACPI_EXTERN u8 acpi_gbl_events_initialized; -ACPI_EXTERN struct acpi_interface_info *acpi_gbl_supported_interfaces; -ACPI_EXTERN struct acpi_address_range - *acpi_gbl_address_range_list[ACPI_ADDRESS_RANGE_MAX]; - -#ifndef DEFINE_ACPI_GLOBALS - -/* Other miscellaneous */ - -extern u8 acpi_gbl_shutdown; -extern u32 acpi_gbl_startup_flags; +ACPI_GLOBAL(u32, acpi_gbl_original_mode); +ACPI_GLOBAL(u32, acpi_gbl_ns_lookup_count); +ACPI_GLOBAL(u32, acpi_gbl_ps_find_count); +ACPI_GLOBAL(u16, acpi_gbl_pm1_enable_register_save); +ACPI_GLOBAL(u8, acpi_gbl_debugger_configuration); +ACPI_GLOBAL(u8, acpi_gbl_step_to_next_call); +ACPI_GLOBAL(u8, acpi_gbl_acpi_hardware_present); +ACPI_GLOBAL(u8, acpi_gbl_events_initialized); +ACPI_GLOBAL(struct acpi_interface_info *, acpi_gbl_supported_interfaces); +ACPI_GLOBAL(struct acpi_address_range *, + acpi_gbl_address_range_list[ACPI_ADDRESS_RANGE_MAX]); + +/* Other miscellaneous, declared and initialized in utglobal */ + extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT]; extern const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS]; extern const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS]; -extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES]; extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS]; - -#endif +extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES]; #ifdef ACPI_DBG_TRACK_ALLOCATIONS -/* Lists for tracking memory allocations */ +/* Lists for tracking memory allocations (debug only) */ -ACPI_EXTERN struct acpi_memory_list *acpi_gbl_global_list; -ACPI_EXTERN struct acpi_memory_list *acpi_gbl_ns_node_list; -ACPI_EXTERN u8 acpi_gbl_display_final_mem_stats; -ACPI_EXTERN u8 acpi_gbl_disable_mem_tracking; +ACPI_GLOBAL(struct acpi_memory_list *, acpi_gbl_global_list); +ACPI_GLOBAL(struct acpi_memory_list *, acpi_gbl_ns_node_list); +ACPI_GLOBAL(u8, acpi_gbl_display_final_mem_stats); +ACPI_GLOBAL(u8, acpi_gbl_disable_mem_tracking); #endif /***************************************************************************** @@ -332,22 +206,23 @@ ACPI_EXTERN u8 acpi_gbl_disable_mem_tracking; #define NUM_PREDEFINED_NAMES 9 #endif -ACPI_EXTERN struct acpi_namespace_node acpi_gbl_root_node_struct; -ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_root_node; -ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_fadt_gpe_device; -ACPI_EXTERN union acpi_operand_object *acpi_gbl_module_code_list; +ACPI_GLOBAL(struct acpi_namespace_node, acpi_gbl_root_node_struct); +ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_root_node); +ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_fadt_gpe_device); +ACPI_GLOBAL(union acpi_operand_object *, acpi_gbl_module_code_list); extern const u8 acpi_gbl_ns_properties[ACPI_NUM_NS_TYPES]; extern const struct acpi_predefined_names acpi_gbl_pre_defined_names[NUM_PREDEFINED_NAMES]; #ifdef ACPI_DEBUG_OUTPUT -ACPI_EXTERN u32 acpi_gbl_current_node_count; -ACPI_EXTERN u32 acpi_gbl_current_node_size; -ACPI_EXTERN u32 acpi_gbl_max_concurrent_node_count; -ACPI_EXTERN acpi_size *acpi_gbl_entry_stack_pointer; -ACPI_EXTERN acpi_size *acpi_gbl_lowest_stack_pointer; -ACPI_EXTERN u32 acpi_gbl_deepest_nesting; +ACPI_GLOBAL(u32, acpi_gbl_current_node_count); +ACPI_GLOBAL(u32, acpi_gbl_current_node_size); +ACPI_GLOBAL(u32, acpi_gbl_max_concurrent_node_count); +ACPI_GLOBAL(acpi_size *, acpi_gbl_entry_stack_pointer); +ACPI_GLOBAL(acpi_size *, acpi_gbl_lowest_stack_pointer); +ACPI_GLOBAL(u32, acpi_gbl_deepest_nesting); +ACPI_INIT_GLOBAL(u32, acpi_gbl_nesting_level, 0); #endif /***************************************************************************** @@ -356,11 +231,11 @@ ACPI_EXTERN u32 acpi_gbl_deepest_nesting; * ****************************************************************************/ -ACPI_EXTERN struct acpi_thread_state *acpi_gbl_current_walk_list; +ACPI_GLOBAL(struct acpi_thread_state *, acpi_gbl_current_walk_list); /* Control method single step flag */ -ACPI_EXTERN u8 acpi_gbl_cm_single_step; +ACPI_GLOBAL(u8, acpi_gbl_cm_single_step); /***************************************************************************** * @@ -370,8 +245,9 @@ ACPI_EXTERN u8 acpi_gbl_cm_single_step; extern struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG]; -ACPI_EXTERN u8 acpi_gbl_sleep_type_a; -ACPI_EXTERN u8 acpi_gbl_sleep_type_b; + +ACPI_GLOBAL(u8, acpi_gbl_sleep_type_a); +ACPI_GLOBAL(u8, acpi_gbl_sleep_type_b); /***************************************************************************** * @@ -381,14 +257,15 @@ ACPI_EXTERN u8 acpi_gbl_sleep_type_b; #if (!ACPI_REDUCED_HARDWARE) -ACPI_EXTERN u8 acpi_gbl_all_gpes_initialized; -ACPI_EXTERN struct acpi_gpe_xrupt_info *acpi_gbl_gpe_xrupt_list_head; -ACPI_EXTERN struct acpi_gpe_block_info - *acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS]; -ACPI_EXTERN acpi_gbl_event_handler acpi_gbl_global_event_handler; -ACPI_EXTERN void *acpi_gbl_global_event_handler_context; -ACPI_EXTERN struct acpi_fixed_event_handler - acpi_gbl_fixed_event_handlers[ACPI_NUM_FIXED_EVENTS]; +ACPI_GLOBAL(u8, acpi_gbl_all_gpes_initialized); +ACPI_GLOBAL(struct acpi_gpe_xrupt_info *, acpi_gbl_gpe_xrupt_list_head); +ACPI_GLOBAL(struct acpi_gpe_block_info *, + acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS]); +ACPI_GLOBAL(acpi_gbl_event_handler, acpi_gbl_global_event_handler); +ACPI_GLOBAL(void *, acpi_gbl_global_event_handler_context); +ACPI_GLOBAL(struct acpi_fixed_event_handler, + acpi_gbl_fixed_event_handlers[ACPI_NUM_FIXED_EVENTS]); + extern struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS]; @@ -400,23 +277,19 @@ extern struct acpi_fixed_event_info * ****************************************************************************/ -/* Procedure nesting level for debug output */ - -extern u32 acpi_gbl_nesting_level; - /* Event counters */ -ACPI_EXTERN u32 acpi_method_count; -ACPI_EXTERN u32 acpi_gpe_count; -ACPI_EXTERN u32 acpi_sci_count; -ACPI_EXTERN u32 acpi_fixed_event_count[ACPI_NUM_FIXED_EVENTS]; +ACPI_GLOBAL(u32, acpi_method_count); +ACPI_GLOBAL(u32, acpi_gpe_count); +ACPI_GLOBAL(u32, acpi_sci_count); +ACPI_GLOBAL(u32, acpi_fixed_event_count[ACPI_NUM_FIXED_EVENTS]); /* Support for dynamic control method tracing mechanism */ -ACPI_EXTERN u32 acpi_gbl_original_dbg_level; -ACPI_EXTERN u32 acpi_gbl_original_dbg_layer; -ACPI_EXTERN u32 acpi_gbl_trace_dbg_level; -ACPI_EXTERN u32 acpi_gbl_trace_dbg_layer; +ACPI_GLOBAL(u32, acpi_gbl_original_dbg_level); +ACPI_GLOBAL(u32, acpi_gbl_original_dbg_layer); +ACPI_GLOBAL(u32, acpi_gbl_trace_dbg_level); +ACPI_GLOBAL(u32, acpi_gbl_trace_dbg_layer); /***************************************************************************** * @@ -424,70 +297,81 @@ ACPI_EXTERN u32 acpi_gbl_trace_dbg_layer; * ****************************************************************************/ -ACPI_EXTERN u8 acpi_gbl_db_output_flags; +ACPI_GLOBAL(u8, acpi_gbl_db_output_flags); #ifdef ACPI_DISASSEMBLER -ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_ignore_noop_operator, FALSE); +/* Do not disassemble buffers to resource descriptors */ -ACPI_EXTERN u8 acpi_gbl_db_opt_disasm; -ACPI_EXTERN u8 acpi_gbl_db_opt_verbose; -ACPI_EXTERN u8 acpi_gbl_num_external_methods; -ACPI_EXTERN u32 acpi_gbl_resolved_external_methods; -ACPI_EXTERN struct acpi_external_list *acpi_gbl_external_list; -ACPI_EXTERN struct acpi_external_file *acpi_gbl_external_file_list; +ACPI_INIT_GLOBAL(u8, acpi_gbl_no_resource_disassembly, FALSE); +ACPI_INIT_GLOBAL(u8, acpi_gbl_ignore_noop_operator, FALSE); + +ACPI_GLOBAL(u8, acpi_gbl_db_opt_disasm); +ACPI_GLOBAL(u8, acpi_gbl_db_opt_verbose); +ACPI_GLOBAL(u8, acpi_gbl_num_external_methods); +ACPI_GLOBAL(u32, acpi_gbl_resolved_external_methods); +ACPI_GLOBAL(struct acpi_external_list *, acpi_gbl_external_list); +ACPI_GLOBAL(struct acpi_external_file *, acpi_gbl_external_file_list); #endif #ifdef ACPI_DEBUGGER -extern u8 acpi_gbl_method_executing; -extern u8 acpi_gbl_abort_method; -extern u8 acpi_gbl_db_terminate_threads; +ACPI_INIT_GLOBAL(u8, acpi_gbl_db_terminate_threads, FALSE); +ACPI_INIT_GLOBAL(u8, acpi_gbl_abort_method, FALSE); +ACPI_INIT_GLOBAL(u8, acpi_gbl_method_executing, FALSE); -ACPI_EXTERN u8 acpi_gbl_db_opt_tables; -ACPI_EXTERN u8 acpi_gbl_db_opt_stats; -ACPI_EXTERN u8 acpi_gbl_db_opt_ini_methods; -ACPI_EXTERN u8 acpi_gbl_db_opt_no_region_support; -ACPI_EXTERN u8 acpi_gbl_db_output_to_file; -ACPI_EXTERN char *acpi_gbl_db_buffer; -ACPI_EXTERN char *acpi_gbl_db_filename; -ACPI_EXTERN u32 acpi_gbl_db_debug_level; -ACPI_EXTERN u32 acpi_gbl_db_console_debug_level; -ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_db_scope_node; +ACPI_GLOBAL(u8, acpi_gbl_db_opt_tables); +ACPI_GLOBAL(u8, acpi_gbl_db_opt_stats); +ACPI_GLOBAL(u8, acpi_gbl_db_opt_ini_methods); +ACPI_GLOBAL(u8, acpi_gbl_db_opt_no_region_support); +ACPI_GLOBAL(u8, acpi_gbl_db_output_to_file); +ACPI_GLOBAL(char *, acpi_gbl_db_buffer); +ACPI_GLOBAL(char *, acpi_gbl_db_filename); +ACPI_GLOBAL(u32, acpi_gbl_db_debug_level); +ACPI_GLOBAL(u32, acpi_gbl_db_console_debug_level); +ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_db_scope_node); -ACPI_EXTERN char *acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS]; -ACPI_EXTERN acpi_object_type acpi_gbl_db_arg_types[ACPI_DEBUGGER_MAX_ARGS]; +ACPI_GLOBAL(char *, acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS]); +ACPI_GLOBAL(acpi_object_type, acpi_gbl_db_arg_types[ACPI_DEBUGGER_MAX_ARGS]); /* These buffers should all be the same size */ -ACPI_EXTERN char acpi_gbl_db_line_buf[ACPI_DB_LINE_BUFFER_SIZE]; -ACPI_EXTERN char acpi_gbl_db_parsed_buf[ACPI_DB_LINE_BUFFER_SIZE]; -ACPI_EXTERN char acpi_gbl_db_scope_buf[ACPI_DB_LINE_BUFFER_SIZE]; -ACPI_EXTERN char acpi_gbl_db_debug_filename[ACPI_DB_LINE_BUFFER_SIZE]; +ACPI_GLOBAL(char, acpi_gbl_db_line_buf[ACPI_DB_LINE_BUFFER_SIZE]); +ACPI_GLOBAL(char, acpi_gbl_db_parsed_buf[ACPI_DB_LINE_BUFFER_SIZE]); +ACPI_GLOBAL(char, acpi_gbl_db_scope_buf[ACPI_DB_LINE_BUFFER_SIZE]); +ACPI_GLOBAL(char, acpi_gbl_db_debug_filename[ACPI_DB_LINE_BUFFER_SIZE]); /* * Statistic globals */ -ACPI_EXTERN u16 acpi_gbl_obj_type_count[ACPI_TYPE_NS_NODE_MAX + 1]; -ACPI_EXTERN u16 acpi_gbl_node_type_count[ACPI_TYPE_NS_NODE_MAX + 1]; -ACPI_EXTERN u16 acpi_gbl_obj_type_count_misc; -ACPI_EXTERN u16 acpi_gbl_node_type_count_misc; -ACPI_EXTERN u32 acpi_gbl_num_nodes; -ACPI_EXTERN u32 acpi_gbl_num_objects; - -ACPI_EXTERN u32 acpi_gbl_size_of_parse_tree; -ACPI_EXTERN u32 acpi_gbl_size_of_method_trees; -ACPI_EXTERN u32 acpi_gbl_size_of_node_entries; -ACPI_EXTERN u32 acpi_gbl_size_of_acpi_objects; +ACPI_GLOBAL(u16, acpi_gbl_obj_type_count[ACPI_TYPE_NS_NODE_MAX + 1]); +ACPI_GLOBAL(u16, acpi_gbl_node_type_count[ACPI_TYPE_NS_NODE_MAX + 1]); +ACPI_GLOBAL(u16, acpi_gbl_obj_type_count_misc); +ACPI_GLOBAL(u16, acpi_gbl_node_type_count_misc); +ACPI_GLOBAL(u32, acpi_gbl_num_nodes); +ACPI_GLOBAL(u32, acpi_gbl_num_objects); #endif /* ACPI_DEBUGGER */ /***************************************************************************** * + * Application globals + * + ****************************************************************************/ + +#ifdef ACPI_APPLICATION + +ACPI_INIT_GLOBAL(ACPI_FILE, acpi_gbl_debug_file, NULL); + +#endif /* ACPI_APPLICATION */ + +/***************************************************************************** + * * Info/help support * ****************************************************************************/ extern const struct ah_predefined_name asl_predefined_info[]; +extern const struct ah_device_id asl_device_ids[]; #endif /* __ACGLOBAL_H__ */ diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h index 6357e932bfd..2ad2351a983 100644 --- a/drivers/acpi/acpica/achware.h +++ b/drivers/acpi/acpica/achware.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acinterp.h b/drivers/acpi/acpica/acinterp.h index 8af8c9bdeb3..b01f71ce052 100644 --- a/drivers/acpi/acpica/acinterp.h +++ b/drivers/acpi/acpica/acinterp.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -87,6 +87,10 @@ typedef const struct acpi_exdump_info { #define ACPI_EXD_PACKAGE 11 #define ACPI_EXD_FIELD 12 #define ACPI_EXD_REFERENCE 13 +#define ACPI_EXD_LIST 14 /* Operand object list */ +#define ACPI_EXD_HDLR_LIST 15 /* Address Handler list */ +#define ACPI_EXD_RGN_LIST 16 /* Region list */ +#define ACPI_EXD_NODE 17 /* Namespace Node */ /* restore default alignment */ @@ -454,10 +458,6 @@ void acpi_ex_enter_interpreter(void); void acpi_ex_exit_interpreter(void); -void acpi_ex_reacquire_interpreter(void); - -void acpi_ex_relinquish_interpreter(void); - u8 acpi_ex_truncate_for32bit_table(union acpi_operand_object *obj_desc); void acpi_ex_acquire_global_lock(u32 rule); diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index 53ed1a8ba4f..91f801a2e68 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -450,9 +450,9 @@ struct acpi_gpe_event_info { struct acpi_gpe_register_info { struct acpi_generic_address status_address; /* Address of status reg */ struct acpi_generic_address enable_address; /* Address of enable reg */ + u16 base_gpe_number; /* Base GPE number for this register */ u8 enable_for_wake; /* GPEs to keep enabled when sleeping */ u8 enable_for_run; /* GPEs to keep enabled when running */ - u8 base_gpe_number; /* Base GPE number for this register */ }; /* @@ -466,11 +466,12 @@ struct acpi_gpe_block_info { struct acpi_gpe_xrupt_info *xrupt_block; /* Backpointer to interrupt block */ struct acpi_gpe_register_info *register_info; /* One per GPE register pair */ struct acpi_gpe_event_info *event_info; /* One for each GPE */ - struct acpi_generic_address block_address; /* Base address of the block */ + u64 address; /* Base address of the block */ u32 register_count; /* Number of register pairs in block */ u16 gpe_count; /* Number of individual GPEs in block */ - u8 block_base_number; /* Base GPE number for this block */ - u8 initialized; /* TRUE if this block is initialized */ + u16 block_base_number; /* Base GPE number for this block */ + u8 space_id; + u8 initialized; /* TRUE if this block is initialized */ }; /* Information about GPE interrupt handlers, one per each interrupt level used for GPEs */ @@ -733,7 +734,8 @@ union acpi_parse_value { #define ACPI_DASM_MATCHOP 0x06 /* Parent opcode is a Match() operator */ #define ACPI_DASM_LNOT_PREFIX 0x07 /* Start of a Lnot_equal (etc.) pair of opcodes */ #define ACPI_DASM_LNOT_SUFFIX 0x08 /* End of a Lnot_equal (etc.) pair of opcodes */ -#define ACPI_DASM_IGNORE 0x09 /* Not used at this time */ +#define ACPI_DASM_HID_STRING 0x09 /* String is a _HID or _CID */ +#define ACPI_DASM_IGNORE 0x0A /* Not used at this time */ /* * Generic operation (for example: If, While, Store) @@ -1038,15 +1040,16 @@ struct acpi_external_list { struct acpi_external_list *next; u32 value; u16 length; + u16 flags; u8 type; - u8 flags; - u8 resolved; - u8 emitted; }; /* Values for Flags field above */ -#define ACPI_IPATH_ALLOCATED 0x01 +#define ACPI_EXT_RESOLVED_REFERENCE 0x01 /* Object was resolved during cross ref */ +#define ACPI_EXT_ORIGIN_FROM_FILE 0x02 /* External came from a file */ +#define ACPI_EXT_INTERNAL_PATH_ALLOCATED 0x04 /* Deallocate internal path on completion */ +#define ACPI_EXT_EXTERNAL_EMITTED 0x08 /* External() statement has been emitted */ struct acpi_external_file { char *path; @@ -1146,4 +1149,9 @@ struct ah_predefined_name { #endif }; +struct ah_device_id { + char *name; + char *description; +}; + #endif /* __ACLOCAL_H__ */ diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h index 2a86c65d873..4bceb11c738 100644 --- a/drivers/acpi/acpica/acmacros.h +++ b/drivers/acpi/acpica/acmacros.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -63,17 +63,21 @@ #define ACPI_SET64(ptr, val) (*ACPI_CAST64 (ptr) = (u64) (val)) /* - * printf() format helpers + * printf() format helpers. These macros are workarounds for the difficulties + * with emitting 64-bit integers and 64-bit pointers with the same code + * for both 32-bit and 64-bit hosts. */ - -/* Split 64-bit integer into two 32-bit values. Use with %8.8X%8.8X */ - #define ACPI_FORMAT_UINT64(i) ACPI_HIDWORD(i), ACPI_LODWORD(i) #if ACPI_MACHINE_WIDTH == 64 #define ACPI_FORMAT_NATIVE_UINT(i) ACPI_FORMAT_UINT64(i) +#define ACPI_FORMAT_TO_UINT(i) ACPI_FORMAT_UINT64(i) +#define ACPI_PRINTF_UINT "0x%8.8X%8.8X" + #else -#define ACPI_FORMAT_NATIVE_UINT(i) 0, (i) +#define ACPI_FORMAT_NATIVE_UINT(i) 0, (u32) (i) +#define ACPI_FORMAT_TO_UINT(i) (u32) (i) +#define ACPI_PRINTF_UINT "0x%8.8X" #endif /* diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h index e6138ac4a16..ee1c040f321 100644 --- a/drivers/acpi/acpica/acnamesp.h +++ b/drivers/acpi/acpica/acnamesp.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acobject.h b/drivers/acpi/acpica/acobject.h index cc7ab6dd724..22fb6449d3d 100644 --- a/drivers/acpi/acpica/acobject.h +++ b/drivers/acpi/acpica/acobject.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -193,7 +193,8 @@ struct acpi_object_method { #define ACPI_METHOD_INTERNAL_ONLY 0x02 /* Method is implemented internally (_OSI) */ #define ACPI_METHOD_SERIALIZED 0x04 /* Method is serialized */ #define ACPI_METHOD_SERIALIZED_PENDING 0x08 /* Method is to be marked serialized */ -#define ACPI_METHOD_MODIFIED_NAMESPACE 0x10 /* Method modified the namespace */ +#define ACPI_METHOD_IGNORE_SYNC_LEVEL 0x10 /* Method was auto-serialized at table load time */ +#define ACPI_METHOD_MODIFIED_NAMESPACE 0x20 /* Method modified the namespace */ /****************************************************************************** * diff --git a/drivers/acpi/acpica/acopcode.h b/drivers/acpi/acpica/acopcode.h index 3fc9ca7e8aa..dda0e6affcf 100644 --- a/drivers/acpi/acpica/acopcode.h +++ b/drivers/acpi/acpica/acopcode.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acparser.h b/drivers/acpi/acpica/acparser.h index aed31931883..6168b85463e 100644 --- a/drivers/acpi/acpica/acparser.h +++ b/drivers/acpi/acpica/acparser.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acpredef.h b/drivers/acpi/acpica/acpredef.h index f600aded726..bd08817cafd 100644 --- a/drivers/acpi/acpica/acpredef.h +++ b/drivers/acpi/acpica/acpredef.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -48,7 +48,7 @@ * * Return Package types * - * 1) PTYPE1 packages do not contain sub-packages. + * 1) PTYPE1 packages do not contain subpackages. * * ACPI_PTYPE1_FIXED: Fixed-length length, 1 or 2 object types: * object type @@ -63,8 +63,8 @@ * (Used for _PRW) * * - * 2) PTYPE2 packages contain a Variable-length number of sub-packages. Each - * of the different types describe the contents of each of the sub-packages. + * 2) PTYPE2 packages contain a Variable-length number of subpackages. Each + * of the different types describe the contents of each of the subpackages. * * ACPI_PTYPE2: Each subpackage contains 1 or 2 object types. Zero-length * parent package is allowed: @@ -560,7 +560,7 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = { /* * For _HPX, a single package is returned, containing a variable-length number - * of sub-packages. Each sub-package contains a PCI record setting. + * of subpackages. Each subpackage contains a PCI record setting. * There are several different type of record settings, of different * lengths, but all elements of all settings are Integers. */ @@ -586,6 +586,10 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = { {{"_LID", METHOD_0ARGS, METHOD_RETURNS(ACPI_RTYPE_INTEGER)}}, + {{"_LPD", METHOD_0ARGS, + METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (1 Int(rev), n Pkg (2 Int) */ + PACKAGE_INFO(ACPI_PTYPE2_REV_FIXED, ACPI_RTYPE_INTEGER, 2, 0, 0, 0), + {{"_MAT", METHOD_0ARGS, METHOD_RETURNS(ACPI_RTYPE_BUFFER)}}, diff --git a/drivers/acpi/acpica/acresrc.h b/drivers/acpi/acpica/acresrc.h index ff97430455c..4b008e8884a 100644 --- a/drivers/acpi/acpica/acresrc.h +++ b/drivers/acpi/acpica/acresrc.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acstruct.h b/drivers/acpi/acpica/acstruct.h index fc83c0a5ca7..cf7346110bd 100644 --- a/drivers/acpi/acpica/acstruct.h +++ b/drivers/acpi/acpica/acstruct.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -133,6 +133,9 @@ struct acpi_init_walk_info { u32 table_index; u32 object_count; u32 method_count; + u32 serial_method_count; + u32 non_serial_method_count; + u32 serialized_method_count; u32 device_count; u32 op_region_count; u32 field_count; diff --git a/drivers/acpi/acpica/actables.h b/drivers/acpi/acpica/actables.h index c54f42c64fe..f14882788ee 100644 --- a/drivers/acpi/acpica/actables.h +++ b/drivers/acpi/acpica/actables.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -54,6 +54,31 @@ acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp); u8 *acpi_tb_scan_memory_for_rsdp(u8 *start_address, u32 length); /* + * tbdata - table data structure management + */ +acpi_status acpi_tb_get_next_root_index(u32 *table_index); + +void +acpi_tb_init_table_descriptor(struct acpi_table_desc *table_desc, + acpi_physical_address address, + u8 flags, struct acpi_table_header *table); + +acpi_status +acpi_tb_acquire_temp_table(struct acpi_table_desc *table_desc, + acpi_physical_address address, u8 flags); + +void acpi_tb_release_temp_table(struct acpi_table_desc *table_desc); + +acpi_status acpi_tb_validate_temp_table(struct acpi_table_desc *table_desc); + +acpi_status +acpi_tb_verify_temp_table(struct acpi_table_desc *table_desc, char *signature); + +u8 acpi_tb_is_table_loaded(u32 table_index); + +void acpi_tb_set_table_loaded_flag(u32 table_index, u8 is_loaded); + +/* * tbfadt - FADT parse/convert/validate */ void acpi_tb_parse_fadt(u32 table_index); @@ -72,22 +97,32 @@ acpi_tb_find_table(char *signature, */ acpi_status acpi_tb_resize_root_table_list(void); -acpi_status acpi_tb_verify_table(struct acpi_table_desc *table_desc); +acpi_status acpi_tb_validate_table(struct acpi_table_desc *table_desc); + +void acpi_tb_invalidate_table(struct acpi_table_desc *table_desc); + +void acpi_tb_override_table(struct acpi_table_desc *old_table_desc); -struct acpi_table_header *acpi_tb_table_override(struct acpi_table_header - *table_header, - struct acpi_table_desc - *table_desc); +acpi_status +acpi_tb_acquire_table(struct acpi_table_desc *table_desc, + struct acpi_table_header **table_ptr, + u32 *table_length, u8 *table_flags); + +void +acpi_tb_release_table(struct acpi_table_header *table, + u32 table_length, u8 table_flags); acpi_status -acpi_tb_add_table(struct acpi_table_desc *table_desc, u32 *table_index); +acpi_tb_install_standard_table(acpi_physical_address address, + u8 flags, + u8 reload, u8 override, u32 *table_index); acpi_status acpi_tb_store_table(acpi_physical_address address, struct acpi_table_header *table, u32 length, u8 flags, u32 *table_index); -void acpi_tb_delete_table(struct acpi_table_desc *table_desc); +void acpi_tb_uninstall_table(struct acpi_table_desc *table_desc); void acpi_tb_terminate(void); @@ -99,10 +134,6 @@ acpi_status acpi_tb_release_owner_id(u32 table_index); acpi_status acpi_tb_get_owner_id(u32 table_index, acpi_owner_id *owner_id); -u8 acpi_tb_is_table_loaded(u32 table_index); - -void acpi_tb_set_table_loaded_flag(u32 table_index, u8 is_loaded); - /* * tbutils - table manager utilities */ @@ -124,8 +155,13 @@ void acpi_tb_check_dsdt_header(void); struct acpi_table_header *acpi_tb_copy_dsdt(u32 table_index); void -acpi_tb_install_table(acpi_physical_address address, - char *signature, u32 table_index); +acpi_tb_install_table_with_override(u32 table_index, + struct acpi_table_desc *new_table_desc, + u8 override); + +acpi_status +acpi_tb_install_fixed_table(acpi_physical_address address, + char *signature, u32 table_index); acpi_status acpi_tb_parse_root_table(acpi_physical_address rsdp_address); diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h index be8180c17d7..1e256c5bda2 100644 --- a/drivers/acpi/acpica/acutils.h +++ b/drivers/acpi/acpica/acutils.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -49,7 +49,7 @@ extern const u8 acpi_gbl_resource_aml_serial_bus_sizes[]; /* Strings used by the disassembler and debugger resource dump routines */ -#if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUGGER) +#if defined(ACPI_DEBUG_OUTPUT) || defined (ACPI_DISASSEMBLER) || defined (ACPI_DEBUGGER) extern const char *acpi_gbl_bm_decode[]; extern const char *acpi_gbl_config_decode[]; @@ -176,8 +176,7 @@ acpi_status acpi_ut_init_globals(void); char *acpi_ut_get_mutex_name(u32 mutex_id); -const char *acpi_ut_get_notify_name(u32 notify_value); - +const char *acpi_ut_get_notify_name(u32 notify_value, acpi_object_type type); #endif char *acpi_ut_get_type_name(acpi_object_type type); @@ -737,4 +736,11 @@ acpi_ut_method_error(const char *module_name, struct acpi_namespace_node *node, const char *path, acpi_status lookup_status); +/* + * Utility functions for ACPI names and IDs + */ +const struct ah_predefined_name *acpi_ah_match_predefined_name(char *nameseg); + +const struct ah_device_id *acpi_ah_match_hardware_id(char *hid); + #endif /* _ACUTILS_H */ diff --git a/drivers/acpi/acpica/amlcode.h b/drivers/acpi/acpica/amlcode.h index 48a3e331b72..5908ccec6ae 100644 --- a/drivers/acpi/acpica/amlcode.h +++ b/drivers/acpi/acpica/amlcode.h @@ -7,7 +7,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/amlresrc.h b/drivers/acpi/acpica/amlresrc.h index 87c26366d1d..f3f83440844 100644 --- a/drivers/acpi/acpica/amlresrc.h +++ b/drivers/acpi/acpica/amlresrc.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dsargs.c b/drivers/acpi/acpica/dsargs.c index afdc6df17ab..720b1cdda71 100644 --- a/drivers/acpi/acpica/dsargs.c +++ b/drivers/acpi/acpica/dsargs.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dscontrol.c b/drivers/acpi/acpica/dscontrol.c index eb56b66444b..8daf9de82b7 100644 --- a/drivers/acpi/acpica/dscontrol.c +++ b/drivers/acpi/acpica/dscontrol.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dsfield.c b/drivers/acpi/acpica/dsfield.c index 2d4c0732257..3661c8e9054 100644 --- a/drivers/acpi/acpica/dsfield.c +++ b/drivers/acpi/acpica/dsfield.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -105,7 +105,7 @@ acpi_ds_create_external_region(acpi_status lookup_status, * operation_region not found. Generate an External for it, and * insert the name into the namespace. */ - acpi_dm_add_to_external_list(op, path, ACPI_TYPE_REGION, 0); + acpi_dm_add_op_to_external_list(op, path, ACPI_TYPE_REGION, 0, 0); status = acpi_ns_lookup(walk_state->scope_info, path, ACPI_TYPE_REGION, ACPI_IMODE_LOAD_PASS1, ACPI_NS_SEARCH_PARENT, walk_state, node); diff --git a/drivers/acpi/acpica/dsinit.c b/drivers/acpi/acpica/dsinit.c index 14424200d24..aee5e45f6d3 100644 --- a/drivers/acpi/acpica/dsinit.c +++ b/drivers/acpi/acpica/dsinit.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -83,8 +83,8 @@ acpi_ds_init_one_object(acpi_handle obj_handle, (struct acpi_init_walk_info *)context; struct acpi_namespace_node *node = (struct acpi_namespace_node *)obj_handle; - acpi_object_type type; acpi_status status; + union acpi_operand_object *obj_desc; ACPI_FUNCTION_ENTRY(); @@ -100,9 +100,7 @@ acpi_ds_init_one_object(acpi_handle obj_handle, /* And even then, we are only interested in a few object types */ - type = acpi_ns_get_type(obj_handle); - - switch (type) { + switch (acpi_ns_get_type(obj_handle)) { case ACPI_TYPE_REGION: status = acpi_ds_initialize_region(obj_handle); @@ -117,8 +115,44 @@ acpi_ds_init_one_object(acpi_handle obj_handle, break; case ACPI_TYPE_METHOD: - + /* + * Auto-serialization support. We will examine each method that is + * not_serialized to determine if it creates any Named objects. If + * it does, it will be marked serialized to prevent problems if + * the method is entered by two or more threads and an attempt is + * made to create the same named object twice -- which results in + * an AE_ALREADY_EXISTS exception and method abort. + */ info->method_count++; + obj_desc = acpi_ns_get_attached_object(node); + if (!obj_desc) { + break; + } + + /* Ignore if already serialized */ + + if (obj_desc->method.info_flags & ACPI_METHOD_SERIALIZED) { + info->serial_method_count++; + break; + } + + if (acpi_gbl_auto_serialize_methods) { + + /* Parse/scan method and serialize it if necessary */ + + acpi_ds_auto_serialize_method(node, obj_desc); + if (obj_desc->method. + info_flags & ACPI_METHOD_SERIALIZED) { + + /* Method was just converted to Serialized */ + + info->serial_method_count++; + info->serialized_method_count++; + break; + } + } + + info->non_serial_method_count++; break; case ACPI_TYPE_DEVICE: @@ -170,7 +204,6 @@ acpi_ds_initialize_objects(u32 table_index, ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "**** Starting initialization of namespace objects ****\n")); - ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "Parsing all Control Methods:")); /* Set all init info to zero */ @@ -205,14 +238,16 @@ acpi_ds_initialize_objects(u32 table_index, } ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, - "\nTable [%4.4s](id %4.4X) - %u Objects with %u Devices %u Methods %u Regions\n", + "Table [%4.4s] (id %4.4X) - %4u Objects with %3u Devices, " + "%3u Regions, %3u Methods (%u/%u/%u Serial/Non/Cvt)\n", table->signature, owner_id, info.object_count, - info.device_count, info.method_count, - info.op_region_count)); + info.device_count, info.op_region_count, + info.method_count, info.serial_method_count, + info.non_serial_method_count, + info.serialized_method_count)); - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "%u Methods, %u Regions\n", info.method_count, - info.op_region_count)); + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "%u Methods, %u Regions\n", + info.method_count, info.op_region_count)); return_ACPI_STATUS(AE_OK); } diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c index 81a78ba8431..3c7f7378b94 100644 --- a/drivers/acpi/acpica/dsmethod.c +++ b/drivers/acpi/acpica/dsmethod.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -49,16 +49,155 @@ #ifdef ACPI_DISASSEMBLER #include "acdisasm.h" #endif +#include "acparser.h" +#include "amlcode.h" #define _COMPONENT ACPI_DISPATCHER ACPI_MODULE_NAME("dsmethod") /* Local prototypes */ static acpi_status +acpi_ds_detect_named_opcodes(struct acpi_walk_state *walk_state, + union acpi_parse_object **out_op); + +static acpi_status acpi_ds_create_method_mutex(union acpi_operand_object *method_desc); /******************************************************************************* * + * FUNCTION: acpi_ds_auto_serialize_method + * + * PARAMETERS: node - Namespace Node of the method + * obj_desc - Method object attached to node + * + * RETURN: Status + * + * DESCRIPTION: Parse a control method AML to scan for control methods that + * need serialization due to the creation of named objects. + * + * NOTE: It is a bit of overkill to mark all such methods serialized, since + * there is only a problem if the method actually blocks during execution. + * A blocking operation is, for example, a Sleep() operation, or any access + * to an operation region. However, it is probably not possible to easily + * detect whether a method will block or not, so we simply mark all suspicious + * methods as serialized. + * + * NOTE2: This code is essentially a generic routine for parsing a single + * control method. + * + ******************************************************************************/ + +acpi_status +acpi_ds_auto_serialize_method(struct acpi_namespace_node *node, + union acpi_operand_object *obj_desc) +{ + acpi_status status; + union acpi_parse_object *op = NULL; + struct acpi_walk_state *walk_state; + + ACPI_FUNCTION_TRACE_PTR(ds_auto_serialize_method, node); + + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, + "Method auto-serialization parse [%4.4s] %p\n", + acpi_ut_get_node_name(node), node)); + + /* Create/Init a root op for the method parse tree */ + + op = acpi_ps_alloc_op(AML_METHOD_OP); + if (!op) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + acpi_ps_set_name(op, node->name.integer); + op->common.node = node; + + /* Create and initialize a new walk state */ + + walk_state = + acpi_ds_create_walk_state(node->owner_id, NULL, NULL, NULL); + if (!walk_state) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + status = + acpi_ds_init_aml_walk(walk_state, op, node, + obj_desc->method.aml_start, + obj_desc->method.aml_length, NULL, 0); + if (ACPI_FAILURE(status)) { + acpi_ds_delete_walk_state(walk_state); + return_ACPI_STATUS(status); + } + + walk_state->descending_callback = acpi_ds_detect_named_opcodes; + + /* Parse the method, scan for creation of named objects */ + + status = acpi_ps_parse_aml(walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + acpi_ps_delete_parse_tree(op); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ds_detect_named_opcodes + * + * PARAMETERS: walk_state - Current state of the parse tree walk + * out_op - Unused, required for parser interface + * + * RETURN: Status + * + * DESCRIPTION: Descending callback used during the loading of ACPI tables. + * Currently used to detect methods that must be marked serialized + * in order to avoid problems with the creation of named objects. + * + ******************************************************************************/ + +static acpi_status +acpi_ds_detect_named_opcodes(struct acpi_walk_state *walk_state, + union acpi_parse_object **out_op) +{ + + ACPI_FUNCTION_NAME(acpi_ds_detect_named_opcodes); + + /* We are only interested in opcodes that create a new name */ + + if (! + (walk_state->op_info-> + flags & (AML_NAMED | AML_CREATE | AML_FIELD))) { + return (AE_OK); + } + + /* + * At this point, we know we have a Named object opcode. + * Mark the method as serialized. Later code will create a mutex for + * this method to enforce serialization. + * + * Note, ACPI_METHOD_IGNORE_SYNC_LEVEL flag means that we will ignore the + * Sync Level mechanism for this method, even though it is now serialized. + * Otherwise, there can be conflicts with existing ASL code that actually + * uses sync levels. + */ + walk_state->method_desc->method.sync_level = 0; + walk_state->method_desc->method.info_flags |= + (ACPI_METHOD_SERIALIZED | ACPI_METHOD_IGNORE_SYNC_LEVEL); + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Method serialized [%4.4s] %p - [%s] (%4.4X)\n", + walk_state->method_node->name.ascii, + walk_state->method_node, walk_state->op_info->name, + walk_state->opcode)); + + /* Abort the parse, no need to examine this method any further */ + + return (AE_CTRL_TERMINATE); +} + +/******************************************************************************* + * * FUNCTION: acpi_ds_method_error * * PARAMETERS: status - Execution status @@ -74,7 +213,7 @@ acpi_ds_create_method_mutex(union acpi_operand_object *method_desc); ******************************************************************************/ acpi_status -acpi_ds_method_error(acpi_status status, struct acpi_walk_state *walk_state) +acpi_ds_method_error(acpi_status status, struct acpi_walk_state * walk_state) { ACPI_FUNCTION_ENTRY(); @@ -217,13 +356,19 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node, /* * The current_sync_level (per-thread) must be less than or equal to * the sync level of the method. This mechanism provides some - * deadlock prevention + * deadlock prevention. + * + * If the method was auto-serialized, we just ignore the sync level + * mechanism, because auto-serialization of methods can interfere + * with ASL code that actually uses sync levels. * * Top-level method invocation has no walk state at this point */ if (walk_state && - (walk_state->thread->current_sync_level > - obj_desc->method.mutex->mutex.sync_level)) { + (!(obj_desc->method. + info_flags & ACPI_METHOD_IGNORE_SYNC_LEVEL)) + && (walk_state->thread->current_sync_level > + obj_desc->method.mutex->mutex.sync_level)) { ACPI_ERROR((AE_INFO, "Cannot acquire Mutex for method [%4.4s], current SyncLevel is too large (%u)", acpi_ut_get_node_name(method_node), @@ -668,7 +813,8 @@ acpi_ds_terminate_control_method(union acpi_operand_object *method_desc, method_desc->method.info_flags &= ~ACPI_METHOD_SERIALIZED_PENDING; method_desc->method.info_flags |= - ACPI_METHOD_SERIALIZED; + (ACPI_METHOD_SERIALIZED | + ACPI_METHOD_IGNORE_SYNC_LEVEL); method_desc->method.sync_level = 0; } diff --git a/drivers/acpi/acpica/dsmthdat.c b/drivers/acpi/acpica/dsmthdat.c index c4b0b365723..b67522df01a 100644 --- a/drivers/acpi/acpica/dsmthdat.c +++ b/drivers/acpi/acpica/dsmthdat.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dsobject.c b/drivers/acpi/acpica/dsobject.c index b1746a68dad..a1e7e6b6fcf 100644 --- a/drivers/acpi/acpica/dsobject.c +++ b/drivers/acpi/acpica/dsobject.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dsopcode.c b/drivers/acpi/acpica/dsopcode.c index 5205edcf2c0..6c0759c0db4 100644 --- a/drivers/acpi/acpica/dsopcode.c +++ b/drivers/acpi/acpica/dsopcode.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dsutils.c b/drivers/acpi/acpica/dsutils.c index ade44e49deb..9f74795e226 100644 --- a/drivers/acpi/acpica/dsutils.c +++ b/drivers/acpi/acpica/dsutils.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -727,27 +727,26 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state, index++; } - index--; + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "NumOperands %d, ArgCount %d, Index %d\n", + walk_state->num_operands, arg_count, index)); - /* It is the appropriate order to get objects from the Result stack */ + /* Create the interpreter arguments, in reverse order */ + index--; for (i = 0; i < arg_count; i++) { arg = arguments[index]; - - /* Force the filling of the operand stack in inverse order */ - - walk_state->operand_index = (u8) index; + walk_state->operand_index = (u8)index; status = acpi_ds_create_operand(walk_state, arg, index); if (ACPI_FAILURE(status)) { goto cleanup; } - index--; - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "Arg #%u (%p) done, Arg1=%p\n", index, arg, - first_arg)); + "Created Arg #%u (%p) %u args total\n", + index, arg, arg_count)); + index--; } return_ACPI_STATUS(status); diff --git a/drivers/acpi/acpica/dswexec.c b/drivers/acpi/acpica/dswexec.c index 1bbb22fd6fa..f7f5107e754 100644 --- a/drivers/acpi/acpica/dswexec.c +++ b/drivers/acpi/acpica/dswexec.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c index 95e681a36f9..15623da2620 100644 --- a/drivers/acpi/acpica/dswload.c +++ b/drivers/acpi/acpica/dswload.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -73,8 +73,20 @@ acpi_ds_init_callbacks(struct acpi_walk_state *walk_state, u32 pass_number) { switch (pass_number) { + case 0: + + /* Parse only - caller will setup callbacks */ + + walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 | + ACPI_PARSE_DELETE_TREE | ACPI_PARSE_DISASSEMBLE; + walk_state->descending_callback = NULL; + walk_state->ascending_callback = NULL; + break; + case 1: + /* Load pass 1 */ + walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 | ACPI_PARSE_DELETE_TREE; walk_state->descending_callback = acpi_ds_load1_begin_op; @@ -83,6 +95,8 @@ acpi_ds_init_callbacks(struct acpi_walk_state *walk_state, u32 pass_number) case 2: + /* Load pass 2 */ + walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 | ACPI_PARSE_DELETE_TREE; walk_state->descending_callback = acpi_ds_load2_begin_op; @@ -91,6 +105,8 @@ acpi_ds_init_callbacks(struct acpi_walk_state *walk_state, u32 pass_number) case 3: + /* Execution pass */ + #ifndef ACPI_NO_METHOD_EXECUTION walk_state->parse_flags |= ACPI_PARSE_EXECUTE | ACPI_PARSE_DELETE_TREE; @@ -181,8 +197,8 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state, * Target of Scope() not found. Generate an External for it, and * insert the name into the namespace. */ - acpi_dm_add_to_external_list(op, path, ACPI_TYPE_DEVICE, - 0); + acpi_dm_add_op_to_external_list(op, path, + ACPI_TYPE_DEVICE, 0, 0); status = acpi_ns_lookup(walk_state->scope_info, path, object_type, ACPI_IMODE_LOAD_PASS1, diff --git a/drivers/acpi/acpica/dswload2.c b/drivers/acpi/acpica/dswload2.c index 7f569d57302..2ac28d29730 100644 --- a/drivers/acpi/acpica/dswload2.c +++ b/drivers/acpi/acpica/dswload2.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dswscope.c b/drivers/acpi/acpica/dswscope.c index d67891de1b5..9d6e2c1de1f 100644 --- a/drivers/acpi/acpica/dswscope.c +++ b/drivers/acpi/acpica/dswscope.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dswstate.c b/drivers/acpi/acpica/dswstate.c index ecb12e2137f..24f7d5ea678 100644 --- a/drivers/acpi/acpica/dswstate.c +++ b/drivers/acpi/acpica/dswstate.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evevent.c b/drivers/acpi/acpica/evevent.c index 83cd45f4a87..c7bffff9ed3 100644 --- a/drivers/acpi/acpica/evevent.c +++ b/drivers/acpi/acpica/evevent.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evglock.c b/drivers/acpi/acpica/evglock.c index 4c67193a9fa..3393a73ca0d 100644 --- a/drivers/acpi/acpica/evglock.c +++ b/drivers/acpi/acpica/evglock.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c index a9cb4a1a4bb..48f70013b48 100644 --- a/drivers/acpi/acpica/evgpe.c +++ b/drivers/acpi/acpica/evgpe.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -383,7 +383,7 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list) if (!(gpe_register_info->enable_for_run | gpe_register_info->enable_for_wake)) { ACPI_DEBUG_PRINT((ACPI_DB_INTERRUPTS, - "Ignore disabled registers for GPE%02X-GPE%02X: " + "Ignore disabled registers for GPE %02X-%02X: " "RunEnable=%02X, WakeEnable=%02X\n", gpe_register_info-> base_gpe_number, @@ -416,7 +416,7 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list) } ACPI_DEBUG_PRINT((ACPI_DB_INTERRUPTS, - "Read registers for GPE%02X-GPE%02X: Status=%02X, Enable=%02X, " + "Read registers for GPE %02X-%02X: Status=%02X, Enable=%02X, " "RunEnable=%02X, WakeEnable=%02X\n", gpe_register_info->base_gpe_number, gpe_register_info->base_gpe_number + @@ -706,7 +706,8 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device, status = acpi_hw_clear_gpe(gpe_event_info); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, - "Unable to clear GPE%02X", gpe_number)); + "Unable to clear GPE %02X", + gpe_number)); return_UINT32(ACPI_INTERRUPT_NOT_HANDLED); } } @@ -723,7 +724,7 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device, status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_DISABLE); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, - "Unable to disable GPE%02X", gpe_number)); + "Unable to disable GPE %02X", gpe_number)); return_UINT32(ACPI_INTERRUPT_NOT_HANDLED); } @@ -764,7 +765,7 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device, gpe_event_info); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, - "Unable to queue handler for GPE%02X - event disabled", + "Unable to queue handler for GPE %02X - event disabled", gpe_number)); } break; @@ -776,7 +777,7 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device, * a GPE to be enabled if it has no handler or method. */ ACPI_ERROR((AE_INFO, - "No handler or method for GPE%02X, disabling event", + "No handler or method for GPE %02X, disabling event", gpe_number)); break; diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c index a9e76bc4ad9..d86699eea33 100644 --- a/drivers/acpi/acpica/evgpeblk.c +++ b/drivers/acpi/acpica/evgpeblk.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -87,9 +87,9 @@ acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block, return_ACPI_STATUS(status); } - gpe_xrupt_block = acpi_ev_get_gpe_xrupt_block(interrupt_number); - if (!gpe_xrupt_block) { - status = AE_NO_MEMORY; + status = + acpi_ev_get_gpe_xrupt_block(interrupt_number, &gpe_xrupt_block); + if (ACPI_FAILURE(status)) { goto unlock_and_exit; } @@ -112,7 +112,7 @@ acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block, acpi_os_release_lock(acpi_gbl_gpe_lock, flags); unlock_and_exit: - status = acpi_ut_release_mutex(ACPI_MTX_EVENTS); + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); return_ACPI_STATUS(status); } @@ -252,21 +252,17 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block) /* Init the register_info for this GPE register (8 GPEs) */ - this_register->base_gpe_number = - (u8) (gpe_block->block_base_number + - (i * ACPI_GPE_REGISTER_WIDTH)); + this_register->base_gpe_number = (u16) + (gpe_block->block_base_number + + (i * ACPI_GPE_REGISTER_WIDTH)); - this_register->status_address.address = - gpe_block->block_address.address + i; + this_register->status_address.address = gpe_block->address + i; this_register->enable_address.address = - gpe_block->block_address.address + i + - gpe_block->register_count; + gpe_block->address + i + gpe_block->register_count; - this_register->status_address.space_id = - gpe_block->block_address.space_id; - this_register->enable_address.space_id = - gpe_block->block_address.space_id; + this_register->status_address.space_id = gpe_block->space_id; + this_register->enable_address.space_id = gpe_block->space_id; this_register->status_address.bit_width = ACPI_GPE_REGISTER_WIDTH; this_register->enable_address.bit_width = @@ -334,9 +330,10 @@ error_exit: acpi_status acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device, - struct acpi_generic_address *gpe_block_address, + u64 address, + u8 space_id, u32 register_count, - u8 gpe_block_base_number, + u16 gpe_block_base_number, u32 interrupt_number, struct acpi_gpe_block_info **return_gpe_block) { @@ -359,15 +356,14 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device, /* Initialize the new GPE block */ + gpe_block->address = address; + gpe_block->space_id = space_id; gpe_block->node = gpe_device; gpe_block->gpe_count = (u16)(register_count * ACPI_GPE_REGISTER_WIDTH); gpe_block->initialized = FALSE; gpe_block->register_count = register_count; gpe_block->block_base_number = gpe_block_base_number; - ACPI_MEMCPY(&gpe_block->block_address, gpe_block_address, - sizeof(struct acpi_generic_address)); - /* * Create the register_info and event_info sub-structures * Note: disables and clears all GPEs in the block @@ -408,12 +404,14 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device, } ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, - " Initialized GPE %02X to %02X [%4.4s] %u regs on interrupt 0x%X\n", + " Initialized GPE %02X to %02X [%4.4s] %u regs on interrupt 0x%X%s\n", (u32)gpe_block->block_base_number, (u32)(gpe_block->block_base_number + (gpe_block->gpe_count - 1)), gpe_device->name.ascii, gpe_block->register_count, - interrupt_number)); + interrupt_number, + interrupt_number == + acpi_gbl_FADT.sci_interrupt ? " (SCI)" : "")); /* Update global count of currently available GPEs */ diff --git a/drivers/acpi/acpica/evgpeinit.c b/drivers/acpi/acpica/evgpeinit.c index a3e2f38aadf..49fc7effd96 100644 --- a/drivers/acpi/acpica/evgpeinit.c +++ b/drivers/acpi/acpica/evgpeinit.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -131,8 +131,10 @@ acpi_status acpi_ev_gpe_initialize(void) /* Install GPE Block 0 */ status = acpi_ev_create_gpe_block(acpi_gbl_fadt_gpe_device, - &acpi_gbl_FADT.xgpe0_block, - register_count0, 0, + acpi_gbl_FADT.xgpe0_block. + address, + acpi_gbl_FADT.xgpe0_block. + space_id, register_count0, 0, acpi_gbl_FADT.sci_interrupt, &acpi_gbl_gpe_fadt_blocks[0]); @@ -169,8 +171,10 @@ acpi_status acpi_ev_gpe_initialize(void) status = acpi_ev_create_gpe_block(acpi_gbl_fadt_gpe_device, - &acpi_gbl_FADT.xgpe1_block, - register_count1, + acpi_gbl_FADT.xgpe1_block. + address, + acpi_gbl_FADT.xgpe1_block. + space_id, register_count1, acpi_gbl_FADT.gpe1_base, acpi_gbl_FADT. sci_interrupt, diff --git a/drivers/acpi/acpica/evgpeutil.c b/drivers/acpi/acpica/evgpeutil.c index d3f5e1e2a2b..17e4bbfdb09 100644 --- a/drivers/acpi/acpica/evgpeutil.c +++ b/drivers/acpi/acpica/evgpeutil.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -197,8 +197,9 @@ acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, * FUNCTION: acpi_ev_get_gpe_xrupt_block * * PARAMETERS: interrupt_number - Interrupt for a GPE block + * gpe_xrupt_block - Where the block is returned * - * RETURN: A GPE interrupt block + * RETURN: Status * * DESCRIPTION: Get or Create a GPE interrupt block. There is one interrupt * block per unique interrupt level used for GPEs. Should be @@ -207,7 +208,9 @@ acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, * ******************************************************************************/ -struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 interrupt_number) +acpi_status +acpi_ev_get_gpe_xrupt_block(u32 interrupt_number, + struct acpi_gpe_xrupt_info ** gpe_xrupt_block) { struct acpi_gpe_xrupt_info *next_gpe_xrupt; struct acpi_gpe_xrupt_info *gpe_xrupt; @@ -221,7 +224,8 @@ struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 interrupt_number) next_gpe_xrupt = acpi_gbl_gpe_xrupt_list_head; while (next_gpe_xrupt) { if (next_gpe_xrupt->interrupt_number == interrupt_number) { - return_PTR(next_gpe_xrupt); + *gpe_xrupt_block = next_gpe_xrupt; + return_ACPI_STATUS(AE_OK); } next_gpe_xrupt = next_gpe_xrupt->next; @@ -231,7 +235,7 @@ struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 interrupt_number) gpe_xrupt = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_gpe_xrupt_info)); if (!gpe_xrupt) { - return_PTR(NULL); + return_ACPI_STATUS(AE_NO_MEMORY); } gpe_xrupt->interrupt_number = interrupt_number; @@ -250,6 +254,7 @@ struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 interrupt_number) } else { acpi_gbl_gpe_xrupt_list_head = gpe_xrupt; } + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); /* Install new interrupt handler if not SCI_INT */ @@ -259,14 +264,15 @@ struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 interrupt_number) acpi_ev_gpe_xrupt_handler, gpe_xrupt); if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, - "Could not install GPE interrupt handler at level 0x%X", - interrupt_number)); - return_PTR(NULL); + ACPI_EXCEPTION((AE_INFO, status, + "Could not install GPE interrupt handler at level 0x%X", + interrupt_number)); + return_ACPI_STATUS(status); } } - return_PTR(gpe_xrupt); + *gpe_xrupt_block = gpe_xrupt; + return_ACPI_STATUS(AE_OK); } /******************************************************************************* diff --git a/drivers/acpi/acpica/evhandler.c b/drivers/acpi/acpica/evhandler.c index e3157313eb2..78ac29351c9 100644 --- a/drivers/acpi/acpica/evhandler.c +++ b/drivers/acpi/acpica/evhandler.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evmisc.c b/drivers/acpi/acpica/evmisc.c index a5687540e9a..24ea3424981 100644 --- a/drivers/acpi/acpica/evmisc.c +++ b/drivers/acpi/acpica/evmisc.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -167,7 +167,8 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node * node, "Dispatching Notify on [%4.4s] (%s) Value 0x%2.2X (%s) Node %p\n", acpi_ut_get_node_name(node), acpi_ut_get_type_name(node->type), notify_value, - acpi_ut_get_notify_name(notify_value), node)); + acpi_ut_get_notify_name(notify_value, ACPI_TYPE_ANY), + node)); status = acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_ev_notify_dispatch, info); diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c index 144cbb9b73b..9957297d158 100644 --- a/drivers/acpi/acpica/evregion.c +++ b/drivers/acpi/acpica/evregion.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -314,6 +314,7 @@ acpi_ev_detach_region(union acpi_operand_object *region_obj, { union acpi_operand_object *handler_obj; union acpi_operand_object *obj_desc; + union acpi_operand_object *start_desc; union acpi_operand_object **last_obj_ptr; acpi_adr_space_setup region_setup; void **region_context; @@ -341,6 +342,7 @@ acpi_ev_detach_region(union acpi_operand_object *region_obj, /* Find this region in the handler's list */ obj_desc = handler_obj->address_space.region_list; + start_desc = obj_desc; last_obj_ptr = &handler_obj->address_space.region_list; while (obj_desc) { @@ -438,6 +440,15 @@ acpi_ev_detach_region(union acpi_operand_object *region_obj, last_obj_ptr = &obj_desc->region.next; obj_desc = obj_desc->region.next; + + /* Prevent infinite loop if list is corrupted */ + + if (obj_desc == start_desc) { + ACPI_ERROR((AE_INFO, + "Circular handler list in region object %p", + region_obj)); + return_VOID; + } } /* If we get here, the region was not in the handler's region list */ diff --git a/drivers/acpi/acpica/evrgnini.c b/drivers/acpi/acpica/evrgnini.c index 8354c4f7f10..1b148a440d6 100644 --- a/drivers/acpi/acpica/evrgnini.c +++ b/drivers/acpi/acpica/evrgnini.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evsci.c b/drivers/acpi/acpica/evsci.c index 9e9e3454d89..29630e30382 100644 --- a/drivers/acpi/acpica/evsci.c +++ b/drivers/acpi/acpica/evsci.c @@ -6,7 +6,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -117,7 +117,7 @@ static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context) ACPI_FUNCTION_TRACE(ev_sci_xrupt_handler); /* - * We are guaranteed by the ACPI CA initialization/shutdown code that + * We are guaranteed by the ACPICA initialization/shutdown code that * if this interrupt handler is installed, ACPI is enabled. */ diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c index 23a7fadca41..11e5803b8b4 100644 --- a/drivers/acpi/acpica/evxface.c +++ b/drivers/acpi/acpica/evxface.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -239,7 +239,7 @@ acpi_remove_notify_handler(acpi_handle device, union acpi_operand_object *obj_desc; union acpi_operand_object *handler_obj; union acpi_operand_object *previous_handler_obj; - acpi_status status; + acpi_status status = AE_OK; u32 i; ACPI_FUNCTION_TRACE(acpi_remove_notify_handler); @@ -251,20 +251,17 @@ acpi_remove_notify_handler(acpi_handle device, return_ACPI_STATUS(AE_BAD_PARAMETER); } - /* Make sure all deferred notify tasks are completed */ - - acpi_os_wait_events_complete(); - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - /* Root Object. Global handlers are removed here */ if (device == ACPI_ROOT_OBJECT) { for (i = 0; i < ACPI_NUM_NOTIFY_TYPES; i++) { if (handler_type & (i + 1)) { + status = + acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + if (!acpi_gbl_global_notify[i].handler || (acpi_gbl_global_notify[i].handler != handler)) { @@ -277,31 +274,40 @@ acpi_remove_notify_handler(acpi_handle device, acpi_gbl_global_notify[i].handler = NULL; acpi_gbl_global_notify[i].context = NULL; + + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + + /* Make sure all deferred notify tasks are completed */ + + acpi_os_wait_events_complete(); } } - goto unlock_and_exit; + return_ACPI_STATUS(AE_OK); } /* All other objects: Are Notifies allowed on this object? */ if (!acpi_ev_is_notify_object(node)) { - status = AE_TYPE; - goto unlock_and_exit; + return_ACPI_STATUS(AE_TYPE); } /* Must have an existing internal object */ obj_desc = acpi_ns_get_attached_object(node); if (!obj_desc) { - status = AE_NOT_EXIST; - goto unlock_and_exit; + return_ACPI_STATUS(AE_NOT_EXIST); } /* Internal object exists. Find the handler and remove it */ for (i = 0; i < ACPI_NUM_NOTIFY_TYPES; i++) { if (handler_type & (i + 1)) { + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + handler_obj = obj_desc->common_notify.notify_list[i]; previous_handler_obj = NULL; @@ -329,10 +335,17 @@ acpi_remove_notify_handler(acpi_handle device, handler_obj->notify.next[i]; } + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + + /* Make sure all deferred notify tasks are completed */ + + acpi_os_wait_events_complete(); acpi_ut_remove_reference(handler_obj); } } + return_ACPI_STATUS(status); + unlock_and_exit: (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); return_ACPI_STATUS(status); @@ -457,6 +470,8 @@ exit: return_ACPI_STATUS(status); } +ACPI_EXPORT_SYMBOL(acpi_install_sci_handler) + /******************************************************************************* * * FUNCTION: acpi_remove_sci_handler @@ -468,7 +483,6 @@ exit: * DESCRIPTION: Remove a handler for a System Control Interrupt. * ******************************************************************************/ - acpi_status acpi_remove_sci_handler(acpi_sci_handler address) { struct acpi_sci_handler_info *prev_sci_handler; @@ -522,6 +536,8 @@ unlock_and_exit: return_ACPI_STATUS(status); } +ACPI_EXPORT_SYMBOL(acpi_remove_sci_handler) + /******************************************************************************* * * FUNCTION: acpi_install_global_event_handler @@ -537,7 +553,6 @@ unlock_and_exit: * Can be used to update event counters, etc. * ******************************************************************************/ - acpi_status acpi_install_global_event_handler(acpi_gbl_event_handler handler, void *context) { @@ -840,10 +855,6 @@ acpi_remove_gpe_handler(acpi_handle gpe_device, return_ACPI_STATUS(AE_BAD_PARAMETER); } - /* Make sure all deferred GPE tasks are completed */ - - acpi_os_wait_events_complete(); - status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); @@ -895,9 +906,17 @@ acpi_remove_gpe_handler(acpi_handle gpe_device, (void)acpi_ev_add_gpe_reference(gpe_event_info); } + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); + + /* Make sure all deferred GPE tasks are completed */ + + acpi_os_wait_events_complete(); + /* Now we can free the handler object */ ACPI_FREE(handler); + return_ACPI_STATUS(status); unlock_and_exit: acpi_os_release_lock(acpi_gbl_gpe_lock, flags); diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c index 39d06af5e34..e286640ad4f 100644 --- a/drivers/acpi/acpica/evxfevnt.c +++ b/drivers/acpi/acpica/evxfevnt.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c index 5713da77c66..cb534faf536 100644 --- a/drivers/acpi/acpica/evxfgpe.c +++ b/drivers/acpi/acpica/evxfgpe.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -583,13 +583,26 @@ acpi_install_gpe_block(acpi_handle gpe_device, goto unlock_and_exit; } + /* Validate the parent device */ + + if (node->type != ACPI_TYPE_DEVICE) { + status = AE_TYPE; + goto unlock_and_exit; + } + + if (node->object) { + status = AE_ALREADY_EXISTS; + goto unlock_and_exit; + } + /* * For user-installed GPE Block Devices, the gpe_block_base_number * is always zero */ - status = - acpi_ev_create_gpe_block(node, gpe_block_address, register_count, 0, - interrupt_number, &gpe_block); + status = acpi_ev_create_gpe_block(node, gpe_block_address->address, + gpe_block_address->space_id, + register_count, 0, interrupt_number, + &gpe_block); if (ACPI_FAILURE(status)) { goto unlock_and_exit; } @@ -666,6 +679,13 @@ acpi_status acpi_remove_gpe_block(acpi_handle gpe_device) goto unlock_and_exit; } + /* Validate the parent device */ + + if (node->type != ACPI_TYPE_DEVICE) { + status = AE_TYPE; + goto unlock_and_exit; + } + /* Get the device_object attached to the node */ obj_desc = acpi_ns_get_attached_object(node); diff --git a/drivers/acpi/acpica/evxfregn.c b/drivers/acpi/acpica/evxfregn.c index 02ed75ac56c..2d6f187939c 100644 --- a/drivers/acpi/acpica/evxfregn.c +++ b/drivers/acpi/acpica/evxfregn.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c index 06d216c8d43..7d2949420db 100644 --- a/drivers/acpi/acpica/exconfig.c +++ b/drivers/acpi/acpica/exconfig.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -343,16 +343,14 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, struct acpi_walk_state *walk_state) { union acpi_operand_object *ddb_handle; + struct acpi_table_header *table_header; struct acpi_table_header *table; - struct acpi_table_desc table_desc; u32 table_index; acpi_status status; u32 length; ACPI_FUNCTION_TRACE(ex_load_op); - ACPI_MEMSET(&table_desc, 0, sizeof(struct acpi_table_desc)); - /* Source Object can be either an op_region or a Buffer/Field */ switch (obj_desc->common.type) { @@ -380,17 +378,17 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, /* Get the table header first so we can get the table length */ - table = ACPI_ALLOCATE(sizeof(struct acpi_table_header)); - if (!table) { + table_header = ACPI_ALLOCATE(sizeof(struct acpi_table_header)); + if (!table_header) { return_ACPI_STATUS(AE_NO_MEMORY); } status = acpi_ex_region_read(obj_desc, sizeof(struct acpi_table_header), - ACPI_CAST_PTR(u8, table)); - length = table->length; - ACPI_FREE(table); + ACPI_CAST_PTR(u8, table_header)); + length = table_header->length; + ACPI_FREE(table_header); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); @@ -420,22 +418,19 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, /* Allocate a buffer for the table */ - table_desc.pointer = ACPI_ALLOCATE(length); - if (!table_desc.pointer) { + table = ACPI_ALLOCATE(length); + if (!table) { return_ACPI_STATUS(AE_NO_MEMORY); } /* Read the entire table */ status = acpi_ex_region_read(obj_desc, length, - ACPI_CAST_PTR(u8, - table_desc.pointer)); + ACPI_CAST_PTR(u8, table)); if (ACPI_FAILURE(status)) { - ACPI_FREE(table_desc.pointer); + ACPI_FREE(table); return_ACPI_STATUS(status); } - - table_desc.address = obj_desc->region.address; break; case ACPI_TYPE_BUFFER: /* Buffer or resolved region_field */ @@ -452,10 +447,10 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, /* Get the actual table length from the table header */ - table = + table_header = ACPI_CAST_PTR(struct acpi_table_header, obj_desc->buffer.pointer); - length = table->length; + length = table_header->length; /* Table cannot extend beyond the buffer */ @@ -470,13 +465,12 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, * Copy the table from the buffer because the buffer could be modified * or even deleted in the future */ - table_desc.pointer = ACPI_ALLOCATE(length); - if (!table_desc.pointer) { + table = ACPI_ALLOCATE(length); + if (!table) { return_ACPI_STATUS(AE_NO_MEMORY); } - ACPI_MEMCPY(table_desc.pointer, table, length); - table_desc.address = ACPI_TO_INTEGER(table_desc.pointer); + ACPI_MEMCPY(table, table_header, length); break; default: @@ -484,27 +478,32 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, return_ACPI_STATUS(AE_AML_OPERAND_TYPE); } - /* Validate table checksum (will not get validated in tb_add_table) */ - - status = acpi_tb_verify_checksum(table_desc.pointer, length); - if (ACPI_FAILURE(status)) { - ACPI_FREE(table_desc.pointer); - return_ACPI_STATUS(status); - } - - /* Complete the table descriptor */ + /* Install the new table into the local data structures */ - table_desc.length = length; - table_desc.flags = ACPI_TABLE_ORIGIN_ALLOCATED; + ACPI_INFO((AE_INFO, "Dynamic OEM Table Load:")); + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - /* Install the new table into the local data structures */ + status = acpi_tb_install_standard_table(ACPI_PTR_TO_PHYSADDR(table), + ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL, + TRUE, TRUE, &table_index); - status = acpi_tb_add_table(&table_desc, &table_index); + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); if (ACPI_FAILURE(status)) { /* Delete allocated table buffer */ - acpi_tb_delete_table(&table_desc); + ACPI_FREE(table); + return_ACPI_STATUS(status); + } + + /* + * Note: Now table is "INSTALLED", it must be validated before + * loading. + */ + status = + acpi_tb_validate_table(&acpi_gbl_root_table_list. + tables[table_index]); + if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } @@ -536,9 +535,6 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, return_ACPI_STATUS(status); } - ACPI_INFO((AE_INFO, "Dynamic OEM Table Load:")); - acpi_tb_print_table_header(0, table_desc.pointer); - /* Remove the reference by added by acpi_ex_store above */ acpi_ut_remove_reference(ddb_handle); @@ -546,8 +542,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, /* Invoke table handler if present */ if (acpi_gbl_table_handler) { - (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_LOAD, - table_desc.pointer, + (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_LOAD, table, acpi_gbl_table_handler_context); } @@ -576,6 +571,13 @@ acpi_status acpi_ex_unload_table(union acpi_operand_object *ddb_handle) ACPI_FUNCTION_TRACE(ex_unload_table); /* + * Temporarily emit a warning so that the ASL for the machine can be + * hopefully obtained. This is to say that the Unload() operator is + * extremely rare if not completely unused. + */ + ACPI_WARNING((AE_INFO, "Received request to unload an ACPI table")); + + /* * Validate the handle * Although the handle is partially validated in acpi_ex_reconfiguration() * when it calls acpi_ex_resolve_operands(), the handle is more completely diff --git a/drivers/acpi/acpica/exconvrt.c b/drivers/acpi/acpica/exconvrt.c index 69e4a8cc9b7..c545386fee9 100644 --- a/drivers/acpi/acpica/exconvrt.c +++ b/drivers/acpi/acpica/exconvrt.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/excreate.c b/drivers/acpi/acpica/excreate.c index 3c2e6dcdad3..95d23dabcfb 100644 --- a/drivers/acpi/acpica/excreate.c +++ b/drivers/acpi/acpica/excreate.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exdebug.c b/drivers/acpi/acpica/exdebug.c index 81c72a4ecd8..4cfc3d3b5c9 100644 --- a/drivers/acpi/acpica/exdebug.c +++ b/drivers/acpi/acpica/exdebug.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exdump.c b/drivers/acpi/acpica/exdump.c index 4d046faac48..925202acc3e 100644 --- a/drivers/acpi/acpica/exdump.c +++ b/drivers/acpi/acpica/exdump.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -94,12 +94,13 @@ static struct acpi_exdump_info acpi_ex_dump_buffer[5] = { {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_buffer), NULL}, {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(buffer.length), "Length"}, {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(buffer.pointer), "Pointer"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(buffer.node), "Parent Node"}, + {ACPI_EXD_NODE, ACPI_EXD_OFFSET(buffer.node), "Parent Node"}, {ACPI_EXD_BUFFER, 0, NULL} }; -static struct acpi_exdump_info acpi_ex_dump_package[5] = { +static struct acpi_exdump_info acpi_ex_dump_package[6] = { {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_package), NULL}, + {ACPI_EXD_NODE, ACPI_EXD_OFFSET(package.node), "Parent Node"}, {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(package.flags), "Flags"}, {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(package.count), "Elements"}, {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(package.elements), "Element List"}, @@ -108,11 +109,11 @@ static struct acpi_exdump_info acpi_ex_dump_package[5] = { static struct acpi_exdump_info acpi_ex_dump_device[4] = { {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_device), NULL}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(device.handler), "Handler"}, {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(device.notify_list[0]), "System Notify"}, {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(device.notify_list[1]), - "Device Notify"} + "Device Notify"}, + {ACPI_EXD_HDLR_LIST, ACPI_EXD_OFFSET(device.handler), "Handler"} }; static struct acpi_exdump_info acpi_ex_dump_event[2] = { @@ -133,26 +134,29 @@ static struct acpi_exdump_info acpi_ex_dump_method[9] = { {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.aml_start), "Aml Start"} }; -static struct acpi_exdump_info acpi_ex_dump_mutex[5] = { +static struct acpi_exdump_info acpi_ex_dump_mutex[6] = { {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_mutex), NULL}, {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(mutex.sync_level), "Sync Level"}, + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(mutex.original_sync_level), + "Original Sync Level"}, {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(mutex.owner_thread), "Owner Thread"}, {ACPI_EXD_UINT16, ACPI_EXD_OFFSET(mutex.acquisition_depth), "Acquire Depth"}, {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(mutex.os_mutex), "OsMutex"} }; -static struct acpi_exdump_info acpi_ex_dump_region[7] = { +static struct acpi_exdump_info acpi_ex_dump_region[8] = { {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_region), NULL}, {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(region.space_id), "Space Id"}, {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(region.flags), "Flags"}, + {ACPI_EXD_NODE, ACPI_EXD_OFFSET(region.node), "Parent Node"}, {ACPI_EXD_ADDRESS, ACPI_EXD_OFFSET(region.address), "Address"}, {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(region.length), "Length"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(region.handler), "Handler"}, + {ACPI_EXD_HDLR_LIST, ACPI_EXD_OFFSET(region.handler), "Handler"}, {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(region.next), "Next"} }; -static struct acpi_exdump_info acpi_ex_dump_power[5] = { +static struct acpi_exdump_info acpi_ex_dump_power[6] = { {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_power), NULL}, {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(power_resource.system_level), "System Level"}, @@ -161,7 +165,8 @@ static struct acpi_exdump_info acpi_ex_dump_power[5] = { {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(power_resource.notify_list[0]), "System Notify"}, {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(power_resource.notify_list[1]), - "Device Notify"} + "Device Notify"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(power_resource.handler), "Handler"} }; static struct acpi_exdump_info acpi_ex_dump_processor[7] = { @@ -225,7 +230,7 @@ static struct acpi_exdump_info acpi_ex_dump_reference[8] = { {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(reference.target_type), "Target Type"}, {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(reference.value), "Value"}, {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(reference.object), "Object Desc"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(reference.node), "Node"}, + {ACPI_EXD_NODE, ACPI_EXD_OFFSET(reference.node), "Node"}, {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(reference.where), "Where"}, {ACPI_EXD_REFERENCE, 0, NULL} }; @@ -234,16 +239,16 @@ static struct acpi_exdump_info acpi_ex_dump_address_handler[6] = { {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_address_handler), NULL}, {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(address_space.space_id), "Space Id"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(address_space.next), "Next"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(address_space.region_list), + {ACPI_EXD_HDLR_LIST, ACPI_EXD_OFFSET(address_space.next), "Next"}, + {ACPI_EXD_RGN_LIST, ACPI_EXD_OFFSET(address_space.region_list), "Region List"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(address_space.node), "Node"}, + {ACPI_EXD_NODE, ACPI_EXD_OFFSET(address_space.node), "Node"}, {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(address_space.context), "Context"} }; static struct acpi_exdump_info acpi_ex_dump_notify[7] = { {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_notify), NULL}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(notify.node), "Node"}, + {ACPI_EXD_NODE, ACPI_EXD_OFFSET(notify.node), "Node"}, {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(notify.handler_type), "Handler Type"}, {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(notify.handler), "Handler"}, {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(notify.context), "Context"}, @@ -252,14 +257,31 @@ static struct acpi_exdump_info acpi_ex_dump_notify[7] = { {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(notify.next[1]), "Next Device Notify"} }; +static struct acpi_exdump_info acpi_ex_dump_extra[6] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_extra), NULL}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(extra.method_REG), "_REG Method"}, + {ACPI_EXD_NODE, ACPI_EXD_OFFSET(extra.scope_node), "Scope Node"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(extra.region_context), + "Region Context"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(extra.aml_start), "Aml Start"}, + {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(extra.aml_length), "Aml Length"} +}; + +static struct acpi_exdump_info acpi_ex_dump_data[3] = { + {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_data), NULL}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(data.handler), "Handler"}, + {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(data.pointer), "Raw Data"} +}; + /* Miscellaneous tables */ -static struct acpi_exdump_info acpi_ex_dump_common[4] = { +static struct acpi_exdump_info acpi_ex_dump_common[5] = { {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_common), NULL}, {ACPI_EXD_TYPE, 0, NULL}, {ACPI_EXD_UINT16, ACPI_EXD_OFFSET(common.reference_count), "Reference Count"}, - {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(common.flags), "Flags"} + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(common.flags), "Flags"}, + {ACPI_EXD_LIST, ACPI_EXD_OFFSET(common.next_object), "Object List"} }; static struct acpi_exdump_info acpi_ex_dump_field_common[7] = { @@ -274,15 +296,17 @@ static struct acpi_exdump_info acpi_ex_dump_field_common[7] = { "Field Bit Offset"}, {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(common_field.base_byte_offset), "Base Byte Offset"}, - {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(common_field.node), "Parent Node"} + {ACPI_EXD_NODE, ACPI_EXD_OFFSET(common_field.node), "Parent Node"} }; -static struct acpi_exdump_info acpi_ex_dump_node[5] = { +static struct acpi_exdump_info acpi_ex_dump_node[7] = { {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_node), NULL}, {ACPI_EXD_UINT8, ACPI_EXD_NSOFFSET(flags), "Flags"}, {ACPI_EXD_UINT8, ACPI_EXD_NSOFFSET(owner_id), "Owner Id"}, - {ACPI_EXD_POINTER, ACPI_EXD_NSOFFSET(child), "Child List"}, - {ACPI_EXD_POINTER, ACPI_EXD_NSOFFSET(peer), "Next Peer"} + {ACPI_EXD_LIST, ACPI_EXD_NSOFFSET(object), "Object List"}, + {ACPI_EXD_NODE, ACPI_EXD_NSOFFSET(parent), "Parent"}, + {ACPI_EXD_NODE, ACPI_EXD_NSOFFSET(child), "Child"}, + {ACPI_EXD_NODE, ACPI_EXD_NSOFFSET(peer), "Peer"} }; /* Dispatch table, indexed by object type */ @@ -315,7 +339,9 @@ static struct acpi_exdump_info *acpi_ex_dump_info[] = { acpi_ex_dump_address_handler, NULL, NULL, - NULL + NULL, + acpi_ex_dump_extra, + acpi_ex_dump_data }; /******************************************************************************* @@ -340,6 +366,10 @@ acpi_ex_dump_object(union acpi_operand_object *obj_desc, char *name; const char *reference_name; u8 count; + union acpi_operand_object *start; + union acpi_operand_object *data = NULL; + union acpi_operand_object *next; + struct acpi_namespace_node *node; if (!info) { acpi_os_printf @@ -363,9 +393,9 @@ acpi_ex_dump_object(union acpi_operand_object *obj_desc, case ACPI_EXD_TYPE: - acpi_ex_out_string("Type", - acpi_ut_get_object_type_name - (obj_desc)); + acpi_os_printf("%20s : %2.2X [%s]\n", "Type", + obj_desc->common.type, + acpi_ut_get_object_type_name(obj_desc)); break; case ACPI_EXD_UINT8: @@ -433,6 +463,121 @@ acpi_ex_dump_object(union acpi_operand_object *obj_desc, acpi_ex_dump_reference_obj(obj_desc); break; + case ACPI_EXD_LIST: + + start = *ACPI_CAST_PTR(void *, target); + next = start; + + acpi_os_printf("%20s : %p", name, next); + if (next) { + acpi_os_printf("(%s %2.2X)", + acpi_ut_get_object_type_name + (next), next->common.type); + + while (next->common.next_object) { + if ((next->common.type == + ACPI_TYPE_LOCAL_DATA) && !data) { + data = next; + } + + next = next->common.next_object; + acpi_os_printf("->%p(%s %2.2X)", next, + acpi_ut_get_object_type_name + (next), + next->common.type); + + if ((next == start) || (next == data)) { + acpi_os_printf + ("\n**** Error: Object list appears to be circular linked"); + break; + } + } + } + + acpi_os_printf("\n", next); + break; + + case ACPI_EXD_HDLR_LIST: + + start = *ACPI_CAST_PTR(void *, target); + next = start; + + acpi_os_printf("%20s : %p", name, next); + if (next) { + acpi_os_printf("(%s %2.2X)", + acpi_ut_get_object_type_name + (next), next->common.type); + + while (next->address_space.next) { + if ((next->common.type == + ACPI_TYPE_LOCAL_DATA) && !data) { + data = next; + } + + next = next->address_space.next; + acpi_os_printf("->%p(%s %2.2X)", next, + acpi_ut_get_object_type_name + (next), + next->common.type); + + if ((next == start) || (next == data)) { + acpi_os_printf + ("\n**** Error: Handler list appears to be circular linked"); + break; + } + } + } + + acpi_os_printf("\n", next); + break; + + case ACPI_EXD_RGN_LIST: + + start = *ACPI_CAST_PTR(void *, target); + next = start; + + acpi_os_printf("%20s : %p", name, next); + if (next) { + acpi_os_printf("(%s %2.2X)", + acpi_ut_get_object_type_name + (next), next->common.type); + + while (next->region.next) { + if ((next->common.type == + ACPI_TYPE_LOCAL_DATA) && !data) { + data = next; + } + + next = next->region.next; + acpi_os_printf("->%p(%s %2.2X)", next, + acpi_ut_get_object_type_name + (next), + next->common.type); + + if ((next == start) || (next == data)) { + acpi_os_printf + ("\n**** Error: Region list appears to be circular linked"); + break; + } + } + } + + acpi_os_printf("\n", next); + break; + + case ACPI_EXD_NODE: + + node = + *ACPI_CAST_PTR(struct acpi_namespace_node *, + target); + + acpi_os_printf("%20s : %p", name, node); + if (node) { + acpi_os_printf(" [%4.4s]", node->name.ascii); + } + acpi_os_printf("\n"); + break; + default: acpi_os_printf("**** Invalid table opcode [%X] ****\n", @@ -821,10 +966,8 @@ void acpi_ex_dump_namespace_node(struct acpi_namespace_node *node, u32 flags) } acpi_os_printf("%20s : %4.4s\n", "Name", acpi_ut_get_node_name(node)); - acpi_ex_out_string("Type", acpi_ut_get_type_name(node->type)); - acpi_ex_out_pointer("Attached Object", - acpi_ns_get_attached_object(node)); - acpi_ex_out_pointer("Parent", node->parent); + acpi_os_printf("%20s : %2.2X [%s]\n", "Type", + node->type, acpi_ut_get_type_name(node->type)); acpi_ex_dump_object(ACPI_CAST_PTR(union acpi_operand_object, node), acpi_ex_dump_node); @@ -1017,22 +1160,26 @@ acpi_ex_dump_object_descriptor(union acpi_operand_object *obj_desc, u32 flags) ((struct acpi_namespace_node *)obj_desc)-> object); - acpi_ex_dump_object_descriptor(((struct acpi_namespace_node *) - obj_desc)->object, flags); - return_VOID; + obj_desc = ((struct acpi_namespace_node *)obj_desc)->object; + goto dump_object; } if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) { - acpi_os_printf - ("ExDumpObjectDescriptor: %p is not an ACPI operand object: [%s]\n", - obj_desc, acpi_ut_get_descriptor_name(obj_desc)); + acpi_os_printf("%p is not an ACPI operand object: [%s]\n", + obj_desc, acpi_ut_get_descriptor_name(obj_desc)); return_VOID; } - if (obj_desc->common.type > ACPI_TYPE_NS_NODE_MAX) { + /* Validate the object type */ + + if (obj_desc->common.type > ACPI_TYPE_LOCAL_MAX) { + acpi_os_printf("Not a known object type: %2.2X\n", + obj_desc->common.type); return_VOID; } +dump_object: + /* Common Fields */ acpi_ex_dump_object(obj_desc, acpi_ex_dump_common); @@ -1040,6 +1187,22 @@ acpi_ex_dump_object_descriptor(union acpi_operand_object *obj_desc, u32 flags) /* Object-specific fields */ acpi_ex_dump_object(obj_desc, acpi_ex_dump_info[obj_desc->common.type]); + + if (obj_desc->common.type == ACPI_TYPE_REGION) { + obj_desc = obj_desc->common.next_object; + if (obj_desc->common.type > ACPI_TYPE_LOCAL_MAX) { + acpi_os_printf + ("Secondary object is not a known object type: %2.2X\n", + obj_desc->common.type); + + return_VOID; + } + + acpi_os_printf("\nExtra attached Object (%p):\n", obj_desc); + acpi_ex_dump_object(obj_desc, + acpi_ex_dump_info[obj_desc->common.type]); + } + return_VOID; } diff --git a/drivers/acpi/acpica/exfield.c b/drivers/acpi/acpica/exfield.c index cfd87524342..12878e1982f 100644 --- a/drivers/acpi/acpica/exfield.c +++ b/drivers/acpi/acpica/exfield.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -45,10 +45,71 @@ #include "accommon.h" #include "acdispat.h" #include "acinterp.h" +#include "amlcode.h" #define _COMPONENT ACPI_EXECUTER ACPI_MODULE_NAME("exfield") +/* Local prototypes */ +static u32 +acpi_ex_get_serial_access_length(u32 accessor_type, u32 access_length); + +/******************************************************************************* + * + * FUNCTION: acpi_get_serial_access_bytes + * + * PARAMETERS: accessor_type - The type of the protocol indicated by region + * field access attributes + * access_length - The access length of the region field + * + * RETURN: Decoded access length + * + * DESCRIPTION: This routine returns the length of the generic_serial_bus + * protocol bytes + * + ******************************************************************************/ + +static u32 +acpi_ex_get_serial_access_length(u32 accessor_type, u32 access_length) +{ + u32 length; + + switch (accessor_type) { + case AML_FIELD_ATTRIB_QUICK: + + length = 0; + break; + + case AML_FIELD_ATTRIB_SEND_RCV: + case AML_FIELD_ATTRIB_BYTE: + + length = 1; + break; + + case AML_FIELD_ATTRIB_WORD: + case AML_FIELD_ATTRIB_WORD_CALL: + + length = 2; + break; + + case AML_FIELD_ATTRIB_MULTIBYTE: + case AML_FIELD_ATTRIB_RAW_BYTES: + case AML_FIELD_ATTRIB_RAW_PROCESS: + + length = access_length; + break; + + case AML_FIELD_ATTRIB_BLOCK: + case AML_FIELD_ATTRIB_BLOCK_CALL: + default: + + length = ACPI_GSBUS_BUFFER_SIZE; + break; + } + + return (length); +} + /******************************************************************************* * * FUNCTION: acpi_ex_read_data_from_field @@ -63,8 +124,9 @@ ACPI_MODULE_NAME("exfield") * Buffer, depending on the size of the field. * ******************************************************************************/ + acpi_status -acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state, +acpi_ex_read_data_from_field(struct acpi_walk_state * walk_state, union acpi_operand_object *obj_desc, union acpi_operand_object **ret_buffer_desc) { @@ -73,6 +135,7 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state, acpi_size length; void *buffer; u32 function; + u16 accessor_type; ACPI_FUNCTION_TRACE_PTR(ex_read_data_from_field, obj_desc); @@ -116,9 +179,22 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state, ACPI_READ | (obj_desc->field.attribute << 16); } else if (obj_desc->field.region_obj->region.space_id == ACPI_ADR_SPACE_GSBUS) { - length = ACPI_GSBUS_BUFFER_SIZE; - function = - ACPI_READ | (obj_desc->field.attribute << 16); + accessor_type = obj_desc->field.attribute; + length = acpi_ex_get_serial_access_length(accessor_type, + obj_desc-> + field. + access_length); + + /* + * Add additional 2 bytes for modeled generic_serial_bus data buffer: + * typedef struct { + * BYTEStatus; // Byte 0 of the data buffer + * BYTELength; // Byte 1 of the data buffer + * BYTE[x-1]Data; // Bytes 2-x of the arbitrary length data buffer, + * } + */ + length += 2; + function = ACPI_READ | (accessor_type << 16); } else { /* IPMI */ length = ACPI_IPMI_BUFFER_SIZE; @@ -231,6 +307,7 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc, void *buffer; union acpi_operand_object *buffer_desc; u32 function; + u16 accessor_type; ACPI_FUNCTION_TRACE_PTR(ex_write_data_to_field, obj_desc); @@ -284,9 +361,22 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc, ACPI_WRITE | (obj_desc->field.attribute << 16); } else if (obj_desc->field.region_obj->region.space_id == ACPI_ADR_SPACE_GSBUS) { - length = ACPI_GSBUS_BUFFER_SIZE; - function = - ACPI_WRITE | (obj_desc->field.attribute << 16); + accessor_type = obj_desc->field.attribute; + length = acpi_ex_get_serial_access_length(accessor_type, + obj_desc-> + field. + access_length); + + /* + * Add additional 2 bytes for modeled generic_serial_bus data buffer: + * typedef struct { + * BYTEStatus; // Byte 0 of the data buffer + * BYTELength; // Byte 1 of the data buffer + * BYTE[x-1]Data; // Bytes 2-x of the arbitrary length data buffer, + * } + */ + length += 2; + function = ACPI_WRITE | (accessor_type << 16); } else { /* IPMI */ length = ACPI_IPMI_BUFFER_SIZE; diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c index 49fb742d61b..1d1b27a96c5 100644 --- a/drivers/acpi/acpica/exfldio.c +++ b/drivers/acpi/acpica/exfldio.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exmisc.c b/drivers/acpi/acpica/exmisc.c index 65d93607f36..2207e624f53 100644 --- a/drivers/acpi/acpica/exmisc.c +++ b/drivers/acpi/acpica/exmisc.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exmutex.c b/drivers/acpi/acpica/exmutex.c index 7be0205ad06..b49ea2a95f4 100644 --- a/drivers/acpi/acpica/exmutex.c +++ b/drivers/acpi/acpica/exmutex.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exnames.c b/drivers/acpi/acpica/exnames.c index 14689dec496..dbb03b544e8 100644 --- a/drivers/acpi/acpica/exnames.c +++ b/drivers/acpi/acpica/exnames.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exoparg1.c b/drivers/acpi/acpica/exoparg1.c index d74cea416ca..1b8e9410440 100644 --- a/drivers/acpi/acpica/exoparg1.c +++ b/drivers/acpi/acpica/exoparg1.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exoparg2.c b/drivers/acpi/acpica/exoparg2.c index d6fa0fce1fc..2ede656ee26 100644 --- a/drivers/acpi/acpica/exoparg2.c +++ b/drivers/acpi/acpica/exoparg2.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exoparg3.c b/drivers/acpi/acpica/exoparg3.c index bc042adf880..363767cf01e 100644 --- a/drivers/acpi/acpica/exoparg3.c +++ b/drivers/acpi/acpica/exoparg3.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exoparg6.c b/drivers/acpi/acpica/exoparg6.c index 4459e32c683..29e9e99f7fe 100644 --- a/drivers/acpi/acpica/exoparg6.c +++ b/drivers/acpi/acpica/exoparg6.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exprep.c b/drivers/acpi/acpica/exprep.c index 5a588611ab4..ee3f872870b 100644 --- a/drivers/acpi/acpica/exprep.c +++ b/drivers/acpi/acpica/exprep.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exregion.c b/drivers/acpi/acpica/exregion.c index 9d28867e60d..cd5288a257a 100644 --- a/drivers/acpi/acpica/exregion.c +++ b/drivers/acpi/acpica/exregion.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exresnte.c b/drivers/acpi/acpica/exresnte.c index acd34f59931..ab060261b43 100644 --- a/drivers/acpi/acpica/exresnte.c +++ b/drivers/acpi/acpica/exresnte.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -124,7 +124,8 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, } if (!source_desc) { - ACPI_ERROR((AE_INFO, "No object attached to node %p", node)); + ACPI_ERROR((AE_INFO, "No object attached to node [%4.4s] %p", + node->name.ascii, node)); return_ACPI_STATUS(AE_AML_NO_OPERAND); } diff --git a/drivers/acpi/acpica/exresolv.c b/drivers/acpi/acpica/exresolv.c index 1606524312e..3cde553bcbe 100644 --- a/drivers/acpi/acpica/exresolv.c +++ b/drivers/acpi/acpica/exresolv.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exresop.c b/drivers/acpi/acpica/exresop.c index be3f66973ee..3af8de3fcea 100644 --- a/drivers/acpi/acpica/exresop.c +++ b/drivers/acpi/acpica/exresop.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exstore.c b/drivers/acpi/acpica/exstore.c index f0b09bf9887..daf49f7ea31 100644 --- a/drivers/acpi/acpica/exstore.c +++ b/drivers/acpi/acpica/exstore.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exstoren.c b/drivers/acpi/acpica/exstoren.c index 20d809d90c5..04bd16c08f9 100644 --- a/drivers/acpi/acpica/exstoren.c +++ b/drivers/acpi/acpica/exstoren.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exstorob.c b/drivers/acpi/acpica/exstorob.c index 26e371073b1..fd11018b016 100644 --- a/drivers/acpi/acpica/exstorob.c +++ b/drivers/acpi/acpica/exstorob.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exsystem.c b/drivers/acpi/acpica/exsystem.c index 6578dee2e51..f7da64123ed 100644 --- a/drivers/acpi/acpica/exsystem.c +++ b/drivers/acpi/acpica/exsystem.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -77,7 +77,7 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout) /* We must wait, so unlock the interpreter */ - acpi_ex_relinquish_interpreter(); + acpi_ex_exit_interpreter(); status = acpi_os_wait_semaphore(semaphore, 1, timeout); @@ -87,7 +87,7 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout) /* Reacquire the interpreter */ - acpi_ex_reacquire_interpreter(); + acpi_ex_enter_interpreter(); } return_ACPI_STATUS(status); @@ -123,7 +123,7 @@ acpi_status acpi_ex_system_wait_mutex(acpi_mutex mutex, u16 timeout) /* We must wait, so unlock the interpreter */ - acpi_ex_relinquish_interpreter(); + acpi_ex_exit_interpreter(); status = acpi_os_acquire_mutex(mutex, timeout); @@ -133,7 +133,7 @@ acpi_status acpi_ex_system_wait_mutex(acpi_mutex mutex, u16 timeout) /* Reacquire the interpreter */ - acpi_ex_reacquire_interpreter(); + acpi_ex_enter_interpreter(); } return_ACPI_STATUS(status); @@ -198,7 +198,7 @@ acpi_status acpi_ex_system_do_sleep(u64 how_long) /* Since this thread will sleep, we must release the interpreter */ - acpi_ex_relinquish_interpreter(); + acpi_ex_exit_interpreter(); /* * For compatibility with other ACPI implementations and to prevent @@ -212,7 +212,7 @@ acpi_status acpi_ex_system_do_sleep(u64 how_long) /* And now we must get the interpreter again */ - acpi_ex_reacquire_interpreter(); + acpi_ex_enter_interpreter(); return (AE_OK); } diff --git a/drivers/acpi/acpica/exutils.c b/drivers/acpi/acpica/exutils.c index 99dc7b287d5..d9d72dff2a7 100644 --- a/drivers/acpi/acpica/exutils.c +++ b/drivers/acpi/acpica/exutils.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -100,37 +100,6 @@ void acpi_ex_enter_interpreter(void) /******************************************************************************* * - * FUNCTION: acpi_ex_reacquire_interpreter - * - * PARAMETERS: None - * - * RETURN: None - * - * DESCRIPTION: Reacquire the interpreter execution region from within the - * interpreter code. Failure to enter the interpreter region is a - * fatal system error. Used in conjunction with - * relinquish_interpreter - * - ******************************************************************************/ - -void acpi_ex_reacquire_interpreter(void) -{ - ACPI_FUNCTION_TRACE(ex_reacquire_interpreter); - - /* - * If the global serialized flag is set, do not release the interpreter, - * since it was not actually released by acpi_ex_relinquish_interpreter. - * This forces the interpreter to be single threaded. - */ - if (!acpi_gbl_all_methods_serialized) { - acpi_ex_enter_interpreter(); - } - - return_VOID; -} - -/******************************************************************************* - * * FUNCTION: acpi_ex_exit_interpreter * * PARAMETERS: None @@ -139,7 +108,16 @@ void acpi_ex_reacquire_interpreter(void) * * DESCRIPTION: Exit the interpreter execution region. This is the top level * routine used to exit the interpreter when all processing has - * been completed. + * been completed, or when the method blocks. + * + * Cases where the interpreter is unlocked internally: + * 1) Method will be blocked on a Sleep() AML opcode + * 2) Method will be blocked on an Acquire() AML opcode + * 3) Method will be blocked on a Wait() AML opcode + * 4) Method will be blocked to acquire the global lock + * 5) Method will be blocked waiting to execute a serialized control + * method that is currently executing + * 6) About to invoke a user-installed opregion handler * ******************************************************************************/ @@ -160,44 +138,6 @@ void acpi_ex_exit_interpreter(void) /******************************************************************************* * - * FUNCTION: acpi_ex_relinquish_interpreter - * - * PARAMETERS: None - * - * RETURN: None - * - * DESCRIPTION: Exit the interpreter execution region, from within the - * interpreter - before attempting an operation that will possibly - * block the running thread. - * - * Cases where the interpreter is unlocked internally - * 1) Method to be blocked on a Sleep() AML opcode - * 2) Method to be blocked on an Acquire() AML opcode - * 3) Method to be blocked on a Wait() AML opcode - * 4) Method to be blocked to acquire the global lock - * 5) Method to be blocked waiting to execute a serialized control method - * that is currently executing - * 6) About to invoke a user-installed opregion handler - * - ******************************************************************************/ - -void acpi_ex_relinquish_interpreter(void) -{ - ACPI_FUNCTION_TRACE(ex_relinquish_interpreter); - - /* - * If the global serialized flag is set, do not release the interpreter. - * This forces the interpreter to be single threaded. - */ - if (!acpi_gbl_all_methods_serialized) { - acpi_ex_exit_interpreter(); - } - - return_VOID; -} - -/******************************************************************************* - * * FUNCTION: acpi_ex_truncate_for32bit_table * * PARAMETERS: obj_desc - Object to be truncated diff --git a/drivers/acpi/acpica/hwacpi.c b/drivers/acpi/acpica/hwacpi.c index 3d36df828f5..1e66d960fc1 100644 --- a/drivers/acpi/acpica/hwacpi.c +++ b/drivers/acpi/acpica/hwacpi.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/hwesleep.c b/drivers/acpi/acpica/hwesleep.c index 414076818d4..858fdd6be59 100644 --- a/drivers/acpi/acpica/hwesleep.c +++ b/drivers/acpi/acpica/hwesleep.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c index 96540506058..2e6caabba07 100644 --- a/drivers/acpi/acpica/hwgpe.c +++ b/drivers/acpi/acpica/hwgpe.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/hwpci.c b/drivers/acpi/acpica/hwpci.c index 0889a629505..6aade8e1d2a 100644 --- a/drivers/acpi/acpica/hwpci.c +++ b/drivers/acpi/acpica/hwpci.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -140,11 +140,12 @@ acpi_hw_derive_pci_id(struct acpi_pci_id *pci_id, /* Walk the list, updating the PCI device/function/bus numbers */ status = acpi_hw_process_pci_list(pci_id, list_head); - } - /* Always delete the list */ + /* Delete the list */ + + acpi_hw_delete_pci_list(list_head); + } - acpi_hw_delete_pci_list(list_head); return_ACPI_STATUS(status); } @@ -187,6 +188,10 @@ acpi_hw_build_pci_list(acpi_handle root_pci_device, while (1) { status = acpi_get_parent(current_device, &parent_device); if (ACPI_FAILURE(status)) { + + /* Must delete the list before exit */ + + acpi_hw_delete_pci_list(*return_list_head); return (status); } @@ -199,6 +204,10 @@ acpi_hw_build_pci_list(acpi_handle root_pci_device, list_element = ACPI_ALLOCATE(sizeof(struct acpi_pci_device)); if (!list_element) { + + /* Must delete the list before exit */ + + acpi_hw_delete_pci_list(*return_list_head); return (AE_NO_MEMORY); } diff --git a/drivers/acpi/acpica/hwregs.c b/drivers/acpi/acpica/hwregs.c index 12e6cff54f7..e0fd9b4978c 100644 --- a/drivers/acpi/acpica/hwregs.c +++ b/drivers/acpi/acpica/hwregs.c @@ -6,7 +6,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c index e3828cc4361..d590693eb54 100644 --- a/drivers/acpi/acpica/hwsleep.c +++ b/drivers/acpi/acpica/hwsleep.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/hwtimer.c b/drivers/acpi/acpica/hwtimer.c index 3c498dc1636..76ab5c1a814 100644 --- a/drivers/acpi/acpica/hwtimer.c +++ b/drivers/acpi/acpica/hwtimer.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/hwvalid.c b/drivers/acpi/acpica/hwvalid.c index eab70d58852..6b919127cd9 100644 --- a/drivers/acpi/acpica/hwvalid.c +++ b/drivers/acpi/acpica/hwvalid.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c index b4b47db2dee..96d007df65e 100644 --- a/drivers/acpi/acpica/hwxface.c +++ b/drivers/acpi/acpica/hwxface.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c index 15dddc10fc9..6921c7f3d20 100644 --- a/drivers/acpi/acpica/hwxfsleep.c +++ b/drivers/acpi/acpica/hwxfsleep.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsaccess.c b/drivers/acpi/acpica/nsaccess.c index 14f65f6345b..f1249e3463b 100644 --- a/drivers/acpi/acpica/nsaccess.c +++ b/drivers/acpi/acpica/nsaccess.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsalloc.c b/drivers/acpi/acpica/nsalloc.c index fd1ff54cda1..607eb9e5150 100644 --- a/drivers/acpi/acpica/nsalloc.c +++ b/drivers/acpi/acpica/nsalloc.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsarguments.c b/drivers/acpi/acpica/nsarguments.c index 74b24c82707..80fcfc8c9c1 100644 --- a/drivers/acpi/acpica/nsarguments.c +++ b/drivers/acpi/acpica/nsarguments.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsconvert.c b/drivers/acpi/acpica/nsconvert.c index acd2964c269..b55642c4ee5 100644 --- a/drivers/acpi/acpica/nsconvert.c +++ b/drivers/acpi/acpica/nsconvert.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c index 48b9c6f1264..3d88ef4a3e0 100644 --- a/drivers/acpi/acpica/nsdump.c +++ b/drivers/acpi/acpica/nsdump.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsdumpdv.c b/drivers/acpi/acpica/nsdumpdv.c index 283762511b7..42d37109aa5 100644 --- a/drivers/acpi/acpica/nsdumpdv.c +++ b/drivers/acpi/acpica/nsdumpdv.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nseval.c b/drivers/acpi/acpica/nseval.c index 963ceef063f..e634a05974d 100644 --- a/drivers/acpi/acpica/nseval.c +++ b/drivers/acpi/acpica/nseval.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c index 3a0423af968..a3fb7e4c080 100644 --- a/drivers/acpi/acpica/nsinit.c +++ b/drivers/acpi/acpica/nsinit.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -111,9 +111,8 @@ acpi_status acpi_ns_initialize_objects(void) info.object_count)); ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "%u Control Methods found\n", info.method_count)); - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "%u Op Regions found\n", info.op_region_count)); + "%u Control Methods found\n%u Op Regions found\n", + info.method_count, info.op_region_count)); return_ACPI_STATUS(AE_OK); } diff --git a/drivers/acpi/acpica/nsload.c b/drivers/acpi/acpica/nsload.c index 89ec645e773..7c9d0181f34 100644 --- a/drivers/acpi/acpica/nsload.c +++ b/drivers/acpi/acpica/nsload.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -128,12 +128,12 @@ unlock: * parse trees. */ ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "**** Begin Table Method Parsing and Object Initialization\n")); + "**** Begin Table Object Initialization\n")); status = acpi_ds_initialize_objects(table_index, node); ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "**** Completed Table Method Parsing and Object Initialization\n")); + "**** Completed Table Object Initialization\n")); return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/nsnames.c b/drivers/acpi/acpica/nsnames.c index 90a0380fb8a..7eee0a6f02f 100644 --- a/drivers/acpi/acpica/nsnames.c +++ b/drivers/acpi/acpica/nsnames.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsobject.c b/drivers/acpi/acpica/nsobject.c index 7a736f4d1fd..fe54a8c73b8 100644 --- a/drivers/acpi/acpica/nsobject.c +++ b/drivers/acpi/acpica/nsobject.c @@ -6,7 +6,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -222,13 +222,19 @@ void acpi_ns_detach_object(struct acpi_namespace_node *node) } } - /* Clear the entry in all cases */ + /* Clear the Node entry in all cases */ node->object = NULL; if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == ACPI_DESC_TYPE_OPERAND) { + + /* Unlink object from front of possible object list */ + node->object = obj_desc->common.next_object; + + /* Handle possible 2-descriptor object */ + if (node->object && - ((node->object)->common.type != ACPI_TYPE_LOCAL_DATA)) { + (node->object->common.type != ACPI_TYPE_LOCAL_DATA)) { node->object = node->object->common.next_object; } } diff --git a/drivers/acpi/acpica/nsparse.c b/drivers/acpi/acpica/nsparse.c index 17785734027..e83cff31754 100644 --- a/drivers/acpi/acpica/nsparse.c +++ b/drivers/acpi/acpica/nsparse.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c index d2855d9857c..392910ffbed 100644 --- a/drivers/acpi/acpica/nspredef.c +++ b/drivers/acpi/acpica/nspredef.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsprepkg.c b/drivers/acpi/acpica/nsprepkg.c index 3d5391f9bcb..68f725839eb 100644 --- a/drivers/acpi/acpica/nsprepkg.c +++ b/drivers/acpi/acpica/nsprepkg.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -132,12 +132,12 @@ acpi_ns_check_package(struct acpi_evaluate_info *info, * Decode the type of the expected package contents * * PTYPE1 packages contain no subpackages - * PTYPE2 packages contain sub-packages + * PTYPE2 packages contain subpackages */ switch (package->ret_info.type) { case ACPI_PTYPE1_FIXED: /* - * The package count is fixed and there are no sub-packages + * The package count is fixed and there are no subpackages * * If package is too small, exit. * If package is larger than expected, issue warning but continue @@ -169,7 +169,7 @@ acpi_ns_check_package(struct acpi_evaluate_info *info, case ACPI_PTYPE1_VAR: /* - * The package count is variable, there are no sub-packages, and all + * The package count is variable, there are no subpackages, and all * elements must be of the same type */ for (i = 0; i < count; i++) { @@ -185,7 +185,7 @@ acpi_ns_check_package(struct acpi_evaluate_info *info, case ACPI_PTYPE1_OPTION: /* - * The package count is variable, there are no sub-packages. There are + * The package count is variable, there are no subpackages. There are * a fixed number of required elements, and a variable number of * optional elements. * @@ -242,7 +242,7 @@ acpi_ns_check_package(struct acpi_evaluate_info *info, elements++; count--; - /* Examine the sub-packages */ + /* Examine the subpackages */ status = acpi_ns_check_package_list(info, package, elements, count); @@ -250,7 +250,7 @@ acpi_ns_check_package(struct acpi_evaluate_info *info, case ACPI_PTYPE2_PKG_COUNT: - /* First element is the (Integer) count of sub-packages to follow */ + /* First element is the (Integer) count of subpackages to follow */ status = acpi_ns_check_object_type(info, elements, ACPI_RTYPE_INTEGER, 0); @@ -270,7 +270,7 @@ acpi_ns_check_package(struct acpi_evaluate_info *info, count = expected_count; elements++; - /* Examine the sub-packages */ + /* Examine the subpackages */ status = acpi_ns_check_package_list(info, package, elements, count); @@ -283,9 +283,9 @@ acpi_ns_check_package(struct acpi_evaluate_info *info, case ACPI_PTYPE2_FIX_VAR: /* * These types all return a single Package that consists of a - * variable number of sub-Packages. + * variable number of subpackages. * - * First, ensure that the first element is a sub-Package. If not, + * First, ensure that the first element is a subpackage. If not, * the BIOS may have incorrectly returned the object as a single * package instead of a Package of Packages (a common error if * there is only one entry). We may be able to repair this by @@ -310,7 +310,7 @@ acpi_ns_check_package(struct acpi_evaluate_info *info, count = 1; } - /* Examine the sub-packages */ + /* Examine the subpackages */ status = acpi_ns_check_package_list(info, package, elements, count); @@ -370,9 +370,9 @@ acpi_ns_check_package_list(struct acpi_evaluate_info *info, u32 j; /* - * Validate each sub-Package in the parent Package + * Validate each subpackage in the parent Package * - * NOTE: assumes list of sub-packages contains no NULL elements. + * NOTE: assumes list of subpackages contains no NULL elements. * Any NULL elements should have been removed by earlier call * to acpi_ns_remove_null_elements. */ @@ -389,7 +389,7 @@ acpi_ns_check_package_list(struct acpi_evaluate_info *info, return (status); } - /* Examine the different types of expected sub-packages */ + /* Examine the different types of expected subpackages */ info->parent_package = sub_package; switch (package->ret_info.type) { @@ -450,14 +450,14 @@ acpi_ns_check_package_list(struct acpi_evaluate_info *info, case ACPI_PTYPE2_FIXED: - /* Each sub-package has a fixed length */ + /* Each subpackage has a fixed length */ expected_count = package->ret_info2.count; if (sub_package->package.count < expected_count) { goto package_too_small; } - /* Check the type of each sub-package element */ + /* Check the type of each subpackage element */ for (j = 0; j < expected_count; j++) { status = @@ -475,14 +475,14 @@ acpi_ns_check_package_list(struct acpi_evaluate_info *info, case ACPI_PTYPE2_MIN: - /* Each sub-package has a variable but minimum length */ + /* Each subpackage has a variable but minimum length */ expected_count = package->ret_info.count1; if (sub_package->package.count < expected_count) { goto package_too_small; } - /* Check the type of each sub-package element */ + /* Check the type of each subpackage element */ status = acpi_ns_check_package_elements(info, sub_elements, @@ -531,7 +531,7 @@ acpi_ns_check_package_list(struct acpi_evaluate_info *info, (*sub_elements)->integer.value = expected_count; } - /* Check the type of each sub-package element */ + /* Check the type of each subpackage element */ status = acpi_ns_check_package_elements(info, @@ -557,10 +557,10 @@ acpi_ns_check_package_list(struct acpi_evaluate_info *info, package_too_small: - /* The sub-package count was smaller than required */ + /* The subpackage count was smaller than required */ ACPI_WARN_PREDEFINED((AE_INFO, info->full_pathname, info->node_flags, - "Return Sub-Package[%u] is too small - found %u elements, expected %u", + "Return SubPackage[%u] is too small - found %u elements, expected %u", i, sub_package->package.count, expected_count)); return (AE_AML_OPERAND_VALUE); diff --git a/drivers/acpi/acpica/nsrepair.c b/drivers/acpi/acpica/nsrepair.c index a05afff50eb..7e417aa5c91 100644 --- a/drivers/acpi/acpica/nsrepair.c +++ b/drivers/acpi/acpica/nsrepair.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -207,13 +207,30 @@ acpi_ns_simple_repair(struct acpi_evaluate_info *info, * this predefined name. Either one return value is expected, or none, * for both methods and other objects. * - * Exit now if there is no return object. Warning if one was expected. + * Try to fix if there was no return object. Warning if failed to fix. */ if (!return_object) { if (expected_btypes && (!(expected_btypes & ACPI_RTYPE_NONE))) { - ACPI_WARN_PREDEFINED((AE_INFO, info->full_pathname, - ACPI_WARN_ALWAYS, - "Missing expected return value")); + if (package_index != ACPI_NOT_PACKAGE_ELEMENT) { + ACPI_WARN_PREDEFINED((AE_INFO, + info->full_pathname, + ACPI_WARN_ALWAYS, + "Found unexpected NULL package element")); + + status = + acpi_ns_repair_null_element(info, + expected_btypes, + package_index, + return_object_ptr); + if (ACPI_SUCCESS(status)) { + return (AE_OK); /* Repair was successful */ + } + } else { + ACPI_WARN_PREDEFINED((AE_INFO, + info->full_pathname, + ACPI_WARN_ALWAYS, + "Missing expected return value")); + } return (AE_AML_NO_RETURN_VALUE); } @@ -448,7 +465,7 @@ acpi_ns_repair_null_element(struct acpi_evaluate_info * info, * RETURN: None. * * DESCRIPTION: Remove all NULL package elements from packages that contain - * a variable number of sub-packages. For these types of + * a variable number of subpackages. For these types of * packages, NULL elements can be safely removed. * *****************************************************************************/ @@ -469,7 +486,7 @@ acpi_ns_remove_null_elements(struct acpi_evaluate_info *info, /* * We can safely remove all NULL elements from these package types: * PTYPE1_VAR packages contain a variable number of simple data types. - * PTYPE2 packages contain a variable number of sub-packages. + * PTYPE2 packages contain a variable number of subpackages. */ switch (package_type) { case ACPI_PTYPE1_VAR: diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c index 6a25d320b16..b09e6bef72b 100644 --- a/drivers/acpi/acpica/nsrepair2.c +++ b/drivers/acpi/acpica/nsrepair2.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -432,8 +432,8 @@ acpi_ns_repair_CID(struct acpi_evaluate_info *info, * DESCRIPTION: Repair for the _CST object: * 1. Sort the list ascending by C state type * 2. Ensure type cannot be zero - * 3. A sub-package count of zero means _CST is meaningless - * 4. Count must match the number of C state sub-packages + * 3. A subpackage count of zero means _CST is meaningless + * 4. Count must match the number of C state subpackages * *****************************************************************************/ @@ -611,6 +611,7 @@ acpi_ns_repair_PRT(struct acpi_evaluate_info *info, union acpi_operand_object **top_object_list; union acpi_operand_object **sub_object_list; union acpi_operand_object *obj_desc; + union acpi_operand_object *sub_package; u32 element_count; u32 index; @@ -619,8 +620,17 @@ acpi_ns_repair_PRT(struct acpi_evaluate_info *info, top_object_list = package_object->package.elements; element_count = package_object->package.count; - for (index = 0; index < element_count; index++) { - sub_object_list = (*top_object_list)->package.elements; + /* Examine each subpackage */ + + for (index = 0; index < element_count; index++, top_object_list++) { + sub_package = *top_object_list; + sub_object_list = sub_package->package.elements; + + /* Check for minimum required element count */ + + if (sub_package->package.count < 4) { + continue; + } /* * If the BIOS has erroneously reversed the _PRT source_name (index 2) @@ -634,15 +644,12 @@ acpi_ns_repair_PRT(struct acpi_evaluate_info *info, sub_object_list[2] = obj_desc; info->return_flags |= ACPI_OBJECT_REPAIRED; - ACPI_WARN_PREDEFINED((AE_INFO, info->full_pathname, + ACPI_WARN_PREDEFINED((AE_INFO, + info->full_pathname, info->node_flags, "PRT[%X]: Fixed reversed SourceName and SourceIndex", index)); } - - /* Point to the next union acpi_operand_object in the top level package */ - - top_object_list++; } return (AE_OK); @@ -679,7 +686,7 @@ acpi_ns_repair_PSS(struct acpi_evaluate_info *info, u32 i; /* - * Entries (sub-packages) in the _PSS Package must be sorted by power + * Entries (subpackages) in the _PSS Package must be sorted by power * dissipation, in descending order. If it appears that the list is * incorrectly sorted, sort it. We sort by cpu_frequency, since this * should be proportional to the power. @@ -767,9 +774,9 @@ acpi_ns_repair_TSS(struct acpi_evaluate_info *info, * * PARAMETERS: info - Method execution information block * return_object - Pointer to the top-level returned object - * start_index - Index of the first sub-package - * expected_count - Minimum length of each sub-package - * sort_index - Sub-package entry to sort on + * start_index - Index of the first subpackage + * expected_count - Minimum length of each subpackage + * sort_index - Subpackage entry to sort on * sort_direction - Ascending or descending * sort_key_name - Name of the sort_index field * @@ -805,7 +812,7 @@ acpi_ns_check_sorted_list(struct acpi_evaluate_info *info, } /* - * NOTE: assumes list of sub-packages contains no NULL elements. + * NOTE: assumes list of subpackages contains no NULL elements. * Any NULL elements should have been removed by earlier call * to acpi_ns_remove_null_elements. */ @@ -832,7 +839,7 @@ acpi_ns_check_sorted_list(struct acpi_evaluate_info *info, return (AE_AML_OPERAND_TYPE); } - /* Each sub-package must have the minimum length */ + /* Each subpackage must have the minimum length */ if ((*outer_elements)->package.count < expected_count) { return (AE_AML_PACKAGE_LIMIT); diff --git a/drivers/acpi/acpica/nssearch.c b/drivers/acpi/acpica/nssearch.c index 47420faef07..af1cc42a8aa 100644 --- a/drivers/acpi/acpica/nssearch.c +++ b/drivers/acpi/acpica/nssearch.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c index 4a0665b6bcc..4a5e3f5c0ff 100644 --- a/drivers/acpi/acpica/nsutils.c +++ b/drivers/acpi/acpica/nsutils.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nswalk.c b/drivers/acpi/acpica/nswalk.c index e81f15ef659..4758a1f2ce2 100644 --- a/drivers/acpi/acpica/nswalk.c +++ b/drivers/acpi/acpica/nswalk.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c index e973e311f85..4bd558bf10d 100644 --- a/drivers/acpi/acpica/nsxfeval.c +++ b/drivers/acpi/acpica/nsxfeval.c @@ -6,7 +6,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -84,7 +84,7 @@ acpi_evaluate_object_typed(acpi_handle handle, acpi_object_type return_type) { acpi_status status; - u8 must_free = FALSE; + u8 free_buffer_on_error = FALSE; ACPI_FUNCTION_TRACE(acpi_evaluate_object_typed); @@ -95,14 +95,13 @@ acpi_evaluate_object_typed(acpi_handle handle, } if (return_buffer->length == ACPI_ALLOCATE_BUFFER) { - must_free = TRUE; + free_buffer_on_error = TRUE; } /* Evaluate the object */ - status = - acpi_evaluate_object(handle, pathname, external_params, - return_buffer); + status = acpi_evaluate_object(handle, pathname, + external_params, return_buffer); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } @@ -135,11 +134,15 @@ acpi_evaluate_object_typed(acpi_handle handle, pointer)->type), acpi_ut_get_type_name(return_type))); - if (must_free) { - - /* Caller used ACPI_ALLOCATE_BUFFER, free the return buffer */ - - ACPI_FREE_BUFFER(*return_buffer); + if (free_buffer_on_error) { + /* + * Free a buffer created via ACPI_ALLOCATE_BUFFER. + * Note: We use acpi_os_free here because acpi_os_allocate was used + * to allocate the buffer. This purposefully bypasses the + * (optionally enabled) allocation tracking mechanism since we + * only want to track internal allocations. + */ + acpi_os_free(return_buffer->pointer); return_buffer->pointer = NULL; } @@ -920,19 +923,22 @@ ACPI_EXPORT_SYMBOL(acpi_detach_data) /******************************************************************************* * - * FUNCTION: acpi_get_data + * FUNCTION: acpi_get_data_full * * PARAMETERS: obj_handle - Namespace node * handler - Handler used in call to attach_data * data - Where the data is returned + * callback - function to execute before returning * * RETURN: Status * - * DESCRIPTION: Retrieve data that was previously attached to a namespace node. + * DESCRIPTION: Retrieve data that was previously attached to a namespace node + * and execute a callback before returning. * ******************************************************************************/ acpi_status -acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data) +acpi_get_data_full(acpi_handle obj_handle, acpi_object_handler handler, + void **data, void (*callback)(void *)) { struct acpi_namespace_node *node; acpi_status status; @@ -957,10 +963,34 @@ acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data) } status = acpi_ns_get_attached_data(node, handler, data); + if (ACPI_SUCCESS(status) && callback) { + callback(*data); + } unlock_and_exit: (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); return (status); } +ACPI_EXPORT_SYMBOL(acpi_get_data_full) + +/******************************************************************************* + * + * FUNCTION: acpi_get_data + * + * PARAMETERS: obj_handle - Namespace node + * handler - Handler used in call to attach_data + * data - Where the data is returned + * + * RETURN: Status + * + * DESCRIPTION: Retrieve data that was previously attached to a namespace node. + * + ******************************************************************************/ +acpi_status +acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data) +{ + return acpi_get_data_full(obj_handle, handler, data, NULL); +} + ACPI_EXPORT_SYMBOL(acpi_get_data) diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c index 3a4bd3ff49a..8c6c11ce976 100644 --- a/drivers/acpi/acpica/nsxfname.c +++ b/drivers/acpi/acpica/nsxfname.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsxfobj.c b/drivers/acpi/acpica/nsxfobj.c index 0e6d79e462d..dae9401be7a 100644 --- a/drivers/acpi/acpica/nsxfobj.c +++ b/drivers/acpi/acpica/nsxfobj.c @@ -6,7 +6,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/psargs.c b/drivers/acpi/acpica/psargs.c index 91a5a69db80..314d314340a 100644 --- a/drivers/acpi/acpica/psargs.c +++ b/drivers/acpi/acpica/psargs.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/psloop.c b/drivers/acpi/acpica/psloop.c index 065b44ae538..b058e2390fd 100644 --- a/drivers/acpi/acpica/psloop.c +++ b/drivers/acpi/acpica/psloop.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -480,6 +480,10 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state) status = AE_OK; } + if (status == AE_CTRL_TERMINATE) { + return_ACPI_STATUS(status); + } + status = acpi_ps_complete_op(walk_state, &op, status); diff --git a/drivers/acpi/acpica/psobject.c b/drivers/acpi/acpica/psobject.c index 95dc608a66a..a6885077d59 100644 --- a/drivers/acpi/acpica/psobject.c +++ b/drivers/acpi/acpica/psobject.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -219,7 +219,10 @@ acpi_ps_build_named_op(struct acpi_walk_state *walk_state, status = walk_state->descending_callback(walk_state, op); if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, "During name lookup/catalog")); + if (status != AE_CTRL_TERMINATE) { + ACPI_EXCEPTION((AE_INFO, status, + "During name lookup/catalog")); + } return_ACPI_STATUS(status); } @@ -230,7 +233,7 @@ acpi_ps_build_named_op(struct acpi_walk_state *walk_state, status = acpi_ps_next_parse_state(walk_state, *op, status); if (ACPI_FAILURE(status)) { if (status == AE_CTRL_PENDING) { - return_ACPI_STATUS(AE_CTRL_PARSE_PENDING); + status = AE_CTRL_PARSE_PENDING; } return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/psopcode.c b/drivers/acpi/acpica/psopcode.c index 1b659e59710..1755d2ac565 100644 --- a/drivers/acpi/acpica/psopcode.c +++ b/drivers/acpi/acpica/psopcode.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/psopinfo.c b/drivers/acpi/acpica/psopinfo.c index 9ba5301e575..0d8d37ffd04 100644 --- a/drivers/acpi/acpica/psopinfo.c +++ b/drivers/acpi/acpica/psopinfo.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -71,6 +71,10 @@ static const u8 acpi_gbl_argument_count[] = const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode) { +#ifdef ACPI_DEBUG_OUTPUT + const char *opcode_name = "Unknown AML opcode"; +#endif + ACPI_FUNCTION_NAME(ps_get_opcode_info); /* @@ -92,11 +96,54 @@ const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode) return (&acpi_gbl_aml_op_info [acpi_gbl_long_op_index[(u8)opcode]]); } +#if defined ACPI_ASL_COMPILER && defined ACPI_DEBUG_OUTPUT +#include "asldefine.h" + + switch (opcode) { + case AML_RAW_DATA_BYTE: + opcode_name = "-Raw Data Byte-"; + break; + + case AML_RAW_DATA_WORD: + opcode_name = "-Raw Data Word-"; + break; + + case AML_RAW_DATA_DWORD: + opcode_name = "-Raw Data Dword-"; + break; + + case AML_RAW_DATA_QWORD: + opcode_name = "-Raw Data Qword-"; + break; + + case AML_RAW_DATA_BUFFER: + opcode_name = "-Raw Data Buffer-"; + break; + + case AML_RAW_DATA_CHAIN: + opcode_name = "-Raw Data Buffer Chain-"; + break; + + case AML_PACKAGE_LENGTH: + opcode_name = "-Package Length-"; + break; + + case AML_UNASSIGNED_OPCODE: + opcode_name = "-Unassigned Opcode-"; + break; + + case AML_DEFAULT_ARG_OP: + opcode_name = "-Default Arg-"; + break; + + default: + break; + } +#endif /* Unknown AML opcode */ - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Unknown AML opcode [%4.4X]\n", opcode)); + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%s [%4.4X]\n", opcode_name, opcode)); return (&acpi_gbl_aml_op_info[_UNK]); } diff --git a/drivers/acpi/acpica/psparse.c b/drivers/acpi/acpica/psparse.c index 79d9a28dede..6d27b597394 100644 --- a/drivers/acpi/acpica/psparse.c +++ b/drivers/acpi/acpica/psparse.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/psscope.c b/drivers/acpi/acpica/psscope.c index 6a4b6fb39f3..32d250feea2 100644 --- a/drivers/acpi/acpica/psscope.c +++ b/drivers/acpi/acpica/psscope.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/pstree.c b/drivers/acpi/acpica/pstree.c index 877dc0de8df..0b64181e772 100644 --- a/drivers/acpi/acpica/pstree.c +++ b/drivers/acpi/acpica/pstree.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/psutils.c b/drivers/acpi/acpica/psutils.c index 91fa73a6e55..3cd48802eed 100644 --- a/drivers/acpi/acpica/psutils.c +++ b/drivers/acpi/acpica/psutils.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/pswalk.c b/drivers/acpi/acpica/pswalk.c index abd65624754..9cb07e1e76d 100644 --- a/drivers/acpi/acpica/pswalk.c +++ b/drivers/acpi/acpica/pswalk.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/psxface.c b/drivers/acpi/acpica/psxface.c index fcb7a840e99..e135acaa5e1 100644 --- a/drivers/acpi/acpica/psxface.c +++ b/drivers/acpi/acpica/psxface.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsaddr.c b/drivers/acpi/acpica/rsaddr.c index f3a9276ac66..916fd095ff3 100644 --- a/drivers/acpi/acpica/rsaddr.c +++ b/drivers/acpi/acpica/rsaddr.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c index b60c9cf8286..689556744b0 100644 --- a/drivers/acpi/acpica/rscalc.c +++ b/drivers/acpi/acpica/rscalc.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -636,7 +636,7 @@ acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object, for (index = 0; index < number_of_elements; index++) { - /* Dereference the sub-package */ + /* Dereference the subpackage */ package_element = *top_object_list; diff --git a/drivers/acpi/acpica/rscreate.c b/drivers/acpi/acpica/rscreate.c index 3a2ace93e62..049d9c22a0f 100644 --- a/drivers/acpi/acpica/rscreate.c +++ b/drivers/acpi/acpica/rscreate.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -72,6 +72,8 @@ acpi_buffer_to_resource(u8 *aml_buffer, void *resource; void *current_resource_ptr; + ACPI_FUNCTION_TRACE(acpi_buffer_to_resource); + /* * Note: we allow AE_AML_NO_RESOURCE_END_TAG, since an end tag * is not required here. @@ -85,7 +87,7 @@ acpi_buffer_to_resource(u8 *aml_buffer, status = AE_OK; } if (ACPI_FAILURE(status)) { - return (status); + return_ACPI_STATUS(status); } /* Allocate a buffer for the converted resource */ @@ -93,7 +95,7 @@ acpi_buffer_to_resource(u8 *aml_buffer, resource = ACPI_ALLOCATE_ZEROED(list_size_needed); current_resource_ptr = resource; if (!resource) { - return (AE_NO_MEMORY); + return_ACPI_STATUS(AE_NO_MEMORY); } /* Perform the AML-to-Resource conversion */ @@ -110,9 +112,11 @@ acpi_buffer_to_resource(u8 *aml_buffer, *resource_ptr = resource; } - return (status); + return_ACPI_STATUS(status); } +ACPI_EXPORT_SYMBOL(acpi_buffer_to_resource) + /******************************************************************************* * * FUNCTION: acpi_rs_create_resource_list @@ -130,10 +134,9 @@ acpi_buffer_to_resource(u8 *aml_buffer, * of device resources. * ******************************************************************************/ - acpi_status acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer, - struct acpi_buffer * output_buffer) + struct acpi_buffer *output_buffer) { acpi_status status; @@ -273,7 +276,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, */ user_prt->length = (sizeof(struct acpi_pci_routing_table) - 4); - /* Each sub-package must be of length 4 */ + /* Each subpackage must be of length 4 */ if ((*top_object_list)->package.count != 4) { ACPI_ERROR((AE_INFO, @@ -283,7 +286,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, } /* - * Dereference the sub-package. + * Dereference the subpackage. * The sub_object_list will now point to an array of the four IRQ * elements: [Address, Pin, Source, source_index] */ @@ -292,7 +295,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, /* 1) First subobject: Dereference the PRT.Address */ obj_desc = sub_object_list[0]; - if (obj_desc->common.type != ACPI_TYPE_INTEGER) { + if (!obj_desc || obj_desc->common.type != ACPI_TYPE_INTEGER) { ACPI_ERROR((AE_INFO, "(PRT[%u].Address) Need Integer, found %s", index, @@ -305,7 +308,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, /* 2) Second subobject: Dereference the PRT.Pin */ obj_desc = sub_object_list[1]; - if (obj_desc->common.type != ACPI_TYPE_INTEGER) { + if (!obj_desc || obj_desc->common.type != ACPI_TYPE_INTEGER) { ACPI_ERROR((AE_INFO, "(PRT[%u].Pin) Need Integer, found %s", index, @@ -394,7 +397,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, /* 4) Fourth subobject: Dereference the PRT.source_index */ obj_desc = sub_object_list[3]; - if (obj_desc->common.type != ACPI_TYPE_INTEGER) { + if (!obj_desc || obj_desc->common.type != ACPI_TYPE_INTEGER) { ACPI_ERROR((AE_INFO, "(PRT[%u].SourceIndex) Need Integer, found %s", index, diff --git a/drivers/acpi/acpica/rsdump.c b/drivers/acpi/acpica/rsdump.c index 8a2d4986b0a..c3c56b5a978 100644 --- a/drivers/acpi/acpica/rsdump.c +++ b/drivers/acpi/acpica/rsdump.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -47,7 +47,8 @@ #define _COMPONENT ACPI_RESOURCES ACPI_MODULE_NAME("rsdump") -#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) + +#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DISASSEMBLER) || defined(ACPI_DEBUGGER) /* Local prototypes */ static void acpi_rs_out_string(char *title, char *value); diff --git a/drivers/acpi/acpica/rsdumpinfo.c b/drivers/acpi/acpica/rsdumpinfo.c index 46192bd5365..2f9332d5c97 100644 --- a/drivers/acpi/acpica/rsdumpinfo.c +++ b/drivers/acpi/acpica/rsdumpinfo.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -48,7 +48,7 @@ #define _COMPONENT ACPI_RESOURCES ACPI_MODULE_NAME("rsdumpinfo") -#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) +#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DISASSEMBLER) || defined(ACPI_DEBUGGER) #define ACPI_RSD_OFFSET(f) (u8) ACPI_OFFSET (union acpi_resource_data,f) #define ACPI_PRT_OFFSET(f) (u8) ACPI_OFFSET (struct acpi_pci_routing_table,f) #define ACPI_RSD_TABLE_SIZE(name) (sizeof(name) / sizeof (struct acpi_rsdump_info)) diff --git a/drivers/acpi/acpica/rsinfo.c b/drivers/acpi/acpica/rsinfo.c index 41fed78e0de..9d3f8a9a24b 100644 --- a/drivers/acpi/acpica/rsinfo.c +++ b/drivers/acpi/acpica/rsinfo.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -132,8 +132,7 @@ struct acpi_rsconvert_info *acpi_gbl_convert_resource_serial_bus_dispatch[] = { acpi_rs_convert_uart_serial_bus, }; -#ifdef ACPI_FUTURE_USAGE -#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) +#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DISASSEMBLER) || defined(ACPI_DEBUGGER) /* Dispatch table for resource dump functions */ @@ -168,7 +167,6 @@ struct acpi_rsdump_info *acpi_gbl_dump_serial_bus_dispatch[] = { }; #endif -#endif /* ACPI_FUTURE_USAGE */ /* * Base sizes for external AML resource descriptors, indexed by internal type. * Includes size of the descriptor header (1 byte for small descriptors, diff --git a/drivers/acpi/acpica/rsio.c b/drivers/acpi/acpica/rsio.c index ca183755a6f..19d64873290 100644 --- a/drivers/acpi/acpica/rsio.c +++ b/drivers/acpi/acpica/rsio.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsirq.c b/drivers/acpi/acpica/rsirq.c index 364decc1028..3461f7db26d 100644 --- a/drivers/acpi/acpica/rsirq.c +++ b/drivers/acpi/acpica/rsirq.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rslist.c b/drivers/acpi/acpica/rslist.c index 6053aa18209..77291293af6 100644 --- a/drivers/acpi/acpica/rslist.c +++ b/drivers/acpi/acpica/rslist.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsmemory.c b/drivers/acpi/acpica/rsmemory.c index ebc773a1b35..eab4483ff5f 100644 --- a/drivers/acpi/acpica/rsmemory.c +++ b/drivers/acpi/acpica/rsmemory.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsmisc.c b/drivers/acpi/acpica/rsmisc.c index c99cec9cefd..41eea4bc089 100644 --- a/drivers/acpi/acpica/rsmisc.c +++ b/drivers/acpi/acpica/rsmisc.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsserial.c b/drivers/acpi/acpica/rsserial.c index fe49fc43e10..9e8407223d9 100644 --- a/drivers/acpi/acpica/rsserial.c +++ b/drivers/acpi/acpica/rsserial.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsutils.c b/drivers/acpi/acpica/rsutils.c index 14a7982c996..897a5ceb042 100644 --- a/drivers/acpi/acpica/rsutils.c +++ b/drivers/acpi/acpica/rsutils.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c index 01e476988aa..877ab920213 100644 --- a/drivers/acpi/acpica/rsxface.c +++ b/drivers/acpi/acpica/rsxface.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/tbdata.c b/drivers/acpi/acpica/tbdata.c new file mode 100644 index 00000000000..f499c10ceb4 --- /dev/null +++ b/drivers/acpi/acpica/tbdata.c @@ -0,0 +1,760 @@ +/****************************************************************************** + * + * Module Name: tbdata - Table manager data structure functions + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2014, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acnamesp.h" +#include "actables.h" + +#define _COMPONENT ACPI_TABLES +ACPI_MODULE_NAME("tbdata") + +/******************************************************************************* + * + * FUNCTION: acpi_tb_init_table_descriptor + * + * PARAMETERS: table_desc - Table descriptor + * address - Physical address of the table + * flags - Allocation flags of the table + * table - Pointer to the table + * + * RETURN: None + * + * DESCRIPTION: Initialize a new table descriptor + * + ******************************************************************************/ +void +acpi_tb_init_table_descriptor(struct acpi_table_desc *table_desc, + acpi_physical_address address, + u8 flags, struct acpi_table_header *table) +{ + + /* + * Initialize the table descriptor. Set the pointer to NULL, since the + * table is not fully mapped at this time. + */ + ACPI_MEMSET(table_desc, 0, sizeof(struct acpi_table_desc)); + table_desc->address = address; + table_desc->length = table->length; + table_desc->flags = flags; + ACPI_MOVE_32_TO_32(table_desc->signature.ascii, table->signature); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_acquire_table + * + * PARAMETERS: table_desc - Table descriptor + * table_ptr - Where table is returned + * table_length - Where table length is returned + * table_flags - Where table allocation flags are returned + * + * RETURN: Status + * + * DESCRIPTION: Acquire an ACPI table. It can be used for tables not + * maintained in the acpi_gbl_root_table_list. + * + ******************************************************************************/ + +acpi_status +acpi_tb_acquire_table(struct acpi_table_desc *table_desc, + struct acpi_table_header **table_ptr, + u32 *table_length, u8 *table_flags) +{ + struct acpi_table_header *table = NULL; + + switch (table_desc->flags & ACPI_TABLE_ORIGIN_MASK) { + case ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL: + + table = + acpi_os_map_memory(table_desc->address, table_desc->length); + break; + + case ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL: + case ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL: + + table = + ACPI_CAST_PTR(struct acpi_table_header, + table_desc->address); + break; + + default: + + break; + } + + /* Table is not valid yet */ + + if (!table) { + return (AE_NO_MEMORY); + } + + /* Fill the return values */ + + *table_ptr = table; + *table_length = table_desc->length; + *table_flags = table_desc->flags; + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_release_table + * + * PARAMETERS: table - Pointer for the table + * table_length - Length for the table + * table_flags - Allocation flags for the table + * + * RETURN: None + * + * DESCRIPTION: Release a table. The inverse of acpi_tb_acquire_table(). + * + ******************************************************************************/ + +void +acpi_tb_release_table(struct acpi_table_header *table, + u32 table_length, u8 table_flags) +{ + + switch (table_flags & ACPI_TABLE_ORIGIN_MASK) { + case ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL: + + acpi_os_unmap_memory(table, table_length); + break; + + case ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL: + case ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL: + default: + + break; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_acquire_temp_table + * + * PARAMETERS: table_desc - Table descriptor to be acquired + * address - Address of the table + * flags - Allocation flags of the table + * + * RETURN: Status + * + * DESCRIPTION: This function validates the table header to obtain the length + * of a table and fills the table descriptor to make its state as + * "INSTALLED". Such a table descriptor is only used for verified + * installation. + * + ******************************************************************************/ + +acpi_status +acpi_tb_acquire_temp_table(struct acpi_table_desc *table_desc, + acpi_physical_address address, u8 flags) +{ + struct acpi_table_header *table_header; + + switch (flags & ACPI_TABLE_ORIGIN_MASK) { + case ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL: + + /* Get the length of the full table from the header */ + + table_header = + acpi_os_map_memory(address, + sizeof(struct acpi_table_header)); + if (!table_header) { + return (AE_NO_MEMORY); + } + + acpi_tb_init_table_descriptor(table_desc, address, flags, + table_header); + acpi_os_unmap_memory(table_header, + sizeof(struct acpi_table_header)); + return (AE_OK); + + case ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL: + case ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL: + + table_header = ACPI_CAST_PTR(struct acpi_table_header, address); + if (!table_header) { + return (AE_NO_MEMORY); + } + + acpi_tb_init_table_descriptor(table_desc, address, flags, + table_header); + return (AE_OK); + + default: + + break; + } + + /* Table is not valid yet */ + + return (AE_NO_MEMORY); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_release_temp_table + * + * PARAMETERS: table_desc - Table descriptor to be released + * + * RETURN: Status + * + * DESCRIPTION: The inverse of acpi_tb_acquire_temp_table(). + * + *****************************************************************************/ + +void acpi_tb_release_temp_table(struct acpi_table_desc *table_desc) +{ + + /* + * Note that the .Address is maintained by the callers of + * acpi_tb_acquire_temp_table(), thus do not invoke acpi_tb_uninstall_table() + * where .Address will be freed. + */ + acpi_tb_invalidate_table(table_desc); +} + +/****************************************************************************** + * + * FUNCTION: acpi_tb_validate_table + * + * PARAMETERS: table_desc - Table descriptor + * + * RETURN: Status + * + * DESCRIPTION: This function is called to validate the table, the returned + * table descriptor is in "VALIDATED" state. + * + *****************************************************************************/ + +acpi_status acpi_tb_validate_table(struct acpi_table_desc *table_desc) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(tb_validate_table); + + /* Validate the table if necessary */ + + if (!table_desc->pointer) { + status = acpi_tb_acquire_table(table_desc, &table_desc->pointer, + &table_desc->length, + &table_desc->flags); + if (!table_desc->pointer) { + status = AE_NO_MEMORY; + } + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_invalidate_table + * + * PARAMETERS: table_desc - Table descriptor + * + * RETURN: None + * + * DESCRIPTION: Invalidate one internal ACPI table, this is the inverse of + * acpi_tb_validate_table(). + * + ******************************************************************************/ + +void acpi_tb_invalidate_table(struct acpi_table_desc *table_desc) +{ + + ACPI_FUNCTION_TRACE(tb_invalidate_table); + + /* Table must be validated */ + + if (!table_desc->pointer) { + return_VOID; + } + + acpi_tb_release_table(table_desc->pointer, table_desc->length, + table_desc->flags); + table_desc->pointer = NULL; + + return_VOID; +} + +/****************************************************************************** + * + * FUNCTION: acpi_tb_validate_temp_table + * + * PARAMETERS: table_desc - Table descriptor + * + * RETURN: Status + * + * DESCRIPTION: This function is called to validate the table, the returned + * table descriptor is in "VALIDATED" state. + * + *****************************************************************************/ + +acpi_status acpi_tb_validate_temp_table(struct acpi_table_desc *table_desc) +{ + + if (!table_desc->pointer && !acpi_gbl_verify_table_checksum) { + /* + * Only validates the header of the table. + * Note that Length contains the size of the mapping after invoking + * this work around, this value is required by + * acpi_tb_release_temp_table(). + * We can do this because in acpi_init_table_descriptor(), the Length + * field of the installed descriptor is filled with the actual + * table length obtaining from the table header. + */ + table_desc->length = sizeof(struct acpi_table_header); + } + + return (acpi_tb_validate_table(table_desc)); +} + +/****************************************************************************** + * + * FUNCTION: acpi_tb_verify_temp_table + * + * PARAMETERS: table_desc - Table descriptor + * signature - Table signature to verify + * + * RETURN: Status + * + * DESCRIPTION: This function is called to validate and verify the table, the + * returned table descriptor is in "VALIDATED" state. + * + *****************************************************************************/ + +acpi_status +acpi_tb_verify_temp_table(struct acpi_table_desc * table_desc, char *signature) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(tb_verify_temp_table); + + /* Validate the table */ + + status = acpi_tb_validate_temp_table(table_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* If a particular signature is expected (DSDT/FACS), it must match */ + + if (signature && !ACPI_COMPARE_NAME(&table_desc->signature, signature)) { + ACPI_BIOS_ERROR((AE_INFO, + "Invalid signature 0x%X for ACPI table, expected [%s]", + table_desc->signature.integer, signature)); + status = AE_BAD_SIGNATURE; + goto invalidate_and_exit; + } + + /* Verify the checksum */ + + if (acpi_gbl_verify_table_checksum) { + status = + acpi_tb_verify_checksum(table_desc->pointer, + table_desc->length); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, AE_NO_MEMORY, + "%4.4s " ACPI_PRINTF_UINT + " Attempted table install failed", + acpi_ut_valid_acpi_name(table_desc-> + signature. + ascii) ? + table_desc->signature.ascii : "????", + ACPI_FORMAT_TO_UINT(table_desc-> + address))); + goto invalidate_and_exit; + } + } + + return_ACPI_STATUS(AE_OK); + +invalidate_and_exit: + acpi_tb_invalidate_table(table_desc); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_resize_root_table_list + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Expand the size of global table array + * + ******************************************************************************/ + +acpi_status acpi_tb_resize_root_table_list(void) +{ + struct acpi_table_desc *tables; + u32 table_count; + + ACPI_FUNCTION_TRACE(tb_resize_root_table_list); + + /* allow_resize flag is a parameter to acpi_initialize_tables */ + + if (!(acpi_gbl_root_table_list.flags & ACPI_ROOT_ALLOW_RESIZE)) { + ACPI_ERROR((AE_INFO, + "Resize of Root Table Array is not allowed")); + return_ACPI_STATUS(AE_SUPPORT); + } + + /* Increase the Table Array size */ + + if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) { + table_count = acpi_gbl_root_table_list.max_table_count; + } else { + table_count = acpi_gbl_root_table_list.current_table_count; + } + + tables = ACPI_ALLOCATE_ZEROED(((acpi_size) table_count + + ACPI_ROOT_TABLE_SIZE_INCREMENT) * + sizeof(struct acpi_table_desc)); + if (!tables) { + ACPI_ERROR((AE_INFO, + "Could not allocate new root table array")); + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Copy and free the previous table array */ + + if (acpi_gbl_root_table_list.tables) { + ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables, + (acpi_size) table_count * + sizeof(struct acpi_table_desc)); + + if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) { + ACPI_FREE(acpi_gbl_root_table_list.tables); + } + } + + acpi_gbl_root_table_list.tables = tables; + acpi_gbl_root_table_list.max_table_count = + table_count + ACPI_ROOT_TABLE_SIZE_INCREMENT; + acpi_gbl_root_table_list.flags |= ACPI_ROOT_ORIGIN_ALLOCATED; + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_get_next_root_index + * + * PARAMETERS: table_index - Where table index is returned + * + * RETURN: Status and table index. + * + * DESCRIPTION: Allocate a new ACPI table entry to the global table list + * + ******************************************************************************/ + +acpi_status acpi_tb_get_next_root_index(u32 *table_index) +{ + acpi_status status; + + /* Ensure that there is room for the table in the Root Table List */ + + if (acpi_gbl_root_table_list.current_table_count >= + acpi_gbl_root_table_list.max_table_count) { + status = acpi_tb_resize_root_table_list(); + if (ACPI_FAILURE(status)) { + return (status); + } + } + + *table_index = acpi_gbl_root_table_list.current_table_count; + acpi_gbl_root_table_list.current_table_count++; + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_terminate + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Delete all internal ACPI tables + * + ******************************************************************************/ + +void acpi_tb_terminate(void) +{ + u32 i; + + ACPI_FUNCTION_TRACE(tb_terminate); + + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + + /* Delete the individual tables */ + + for (i = 0; i < acpi_gbl_root_table_list.current_table_count; i++) { + acpi_tb_uninstall_table(&acpi_gbl_root_table_list.tables[i]); + } + + /* + * Delete the root table array if allocated locally. Array cannot be + * mapped, so we don't need to check for that flag. + */ + if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) { + ACPI_FREE(acpi_gbl_root_table_list.tables); + } + + acpi_gbl_root_table_list.tables = NULL; + acpi_gbl_root_table_list.flags = 0; + acpi_gbl_root_table_list.current_table_count = 0; + + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "ACPI Tables freed\n")); + + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_delete_namespace_by_owner + * + * PARAMETERS: table_index - Table index + * + * RETURN: Status + * + * DESCRIPTION: Delete all namespace objects created when this table was loaded. + * + ******************************************************************************/ + +acpi_status acpi_tb_delete_namespace_by_owner(u32 table_index) +{ + acpi_owner_id owner_id; + acpi_status status; + + ACPI_FUNCTION_TRACE(tb_delete_namespace_by_owner); + + status = acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + if (table_index >= acpi_gbl_root_table_list.current_table_count) { + + /* The table index does not exist */ + + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + return_ACPI_STATUS(AE_NOT_EXIST); + } + + /* Get the owner ID for this table, used to delete namespace nodes */ + + owner_id = acpi_gbl_root_table_list.tables[table_index].owner_id; + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + + /* + * Need to acquire the namespace writer lock to prevent interference + * with any concurrent namespace walks. The interpreter must be + * released during the deletion since the acquisition of the deletion + * lock may block, and also since the execution of a namespace walk + * must be allowed to use the interpreter. + */ + (void)acpi_ut_release_mutex(ACPI_MTX_INTERPRETER); + status = acpi_ut_acquire_write_lock(&acpi_gbl_namespace_rw_lock); + + acpi_ns_delete_namespace_by_owner(owner_id); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + acpi_ut_release_write_lock(&acpi_gbl_namespace_rw_lock); + + status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_allocate_owner_id + * + * PARAMETERS: table_index - Table index + * + * RETURN: Status + * + * DESCRIPTION: Allocates owner_id in table_desc + * + ******************************************************************************/ + +acpi_status acpi_tb_allocate_owner_id(u32 table_index) +{ + acpi_status status = AE_BAD_PARAMETER; + + ACPI_FUNCTION_TRACE(tb_allocate_owner_id); + + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + if (table_index < acpi_gbl_root_table_list.current_table_count) { + status = + acpi_ut_allocate_owner_id(& + (acpi_gbl_root_table_list. + tables[table_index].owner_id)); + } + + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_release_owner_id + * + * PARAMETERS: table_index - Table index + * + * RETURN: Status + * + * DESCRIPTION: Releases owner_id in table_desc + * + ******************************************************************************/ + +acpi_status acpi_tb_release_owner_id(u32 table_index) +{ + acpi_status status = AE_BAD_PARAMETER; + + ACPI_FUNCTION_TRACE(tb_release_owner_id); + + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + if (table_index < acpi_gbl_root_table_list.current_table_count) { + acpi_ut_release_owner_id(& + (acpi_gbl_root_table_list. + tables[table_index].owner_id)); + status = AE_OK; + } + + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_get_owner_id + * + * PARAMETERS: table_index - Table index + * owner_id - Where the table owner_id is returned + * + * RETURN: Status + * + * DESCRIPTION: returns owner_id for the ACPI table + * + ******************************************************************************/ + +acpi_status acpi_tb_get_owner_id(u32 table_index, acpi_owner_id * owner_id) +{ + acpi_status status = AE_BAD_PARAMETER; + + ACPI_FUNCTION_TRACE(tb_get_owner_id); + + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + if (table_index < acpi_gbl_root_table_list.current_table_count) { + *owner_id = + acpi_gbl_root_table_list.tables[table_index].owner_id; + status = AE_OK; + } + + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_is_table_loaded + * + * PARAMETERS: table_index - Index into the root table + * + * RETURN: Table Loaded Flag + * + ******************************************************************************/ + +u8 acpi_tb_is_table_loaded(u32 table_index) +{ + u8 is_loaded = FALSE; + + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + if (table_index < acpi_gbl_root_table_list.current_table_count) { + is_loaded = (u8) + (acpi_gbl_root_table_list.tables[table_index].flags & + ACPI_TABLE_IS_LOADED); + } + + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + return (is_loaded); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_set_table_loaded_flag + * + * PARAMETERS: table_index - Table index + * is_loaded - TRUE if table is loaded, FALSE otherwise + * + * RETURN: None + * + * DESCRIPTION: Sets the table loaded flag to either TRUE or FALSE. + * + ******************************************************************************/ + +void acpi_tb_set_table_loaded_flag(u32 table_index, u8 is_loaded) +{ + + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + if (table_index < acpi_gbl_root_table_list.current_table_count) { + if (is_loaded) { + acpi_gbl_root_table_list.tables[table_index].flags |= + ACPI_TABLE_IS_LOADED; + } else { + acpi_gbl_root_table_list.tables[table_index].flags &= + ~ACPI_TABLE_IS_LOADED; + } + } + + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); +} diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c index 9d99f218969..41519a95808 100644 --- a/drivers/acpi/acpica/tbfadt.c +++ b/drivers/acpi/acpica/tbfadt.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -52,14 +52,16 @@ ACPI_MODULE_NAME("tbfadt") static void acpi_tb_init_generic_address(struct acpi_generic_address *generic_address, u8 space_id, - u8 byte_width, u64 address, char *register_name); + u8 byte_width, + u64 address, char *register_name, u8 flags); static void acpi_tb_convert_fadt(void); -static void acpi_tb_validate_fadt(void); - static void acpi_tb_setup_fadt_registers(void); +static u64 +acpi_tb_select_address(char *register_name, u32 address32, u64 address64); + /* Table for conversion of FADT to common internal format and FADT validation */ typedef struct acpi_fadt_info { @@ -68,13 +70,14 @@ typedef struct acpi_fadt_info { u16 address32; u16 length; u8 default_length; - u8 type; + u8 flags; } acpi_fadt_info; #define ACPI_FADT_OPTIONAL 0 #define ACPI_FADT_REQUIRED 1 #define ACPI_FADT_SEPARATE_LENGTH 2 +#define ACPI_FADT_GPE_REGISTER 4 static struct acpi_fadt_info fadt_info_table[] = { {"Pm1aEventBlock", @@ -124,14 +127,14 @@ static struct acpi_fadt_info fadt_info_table[] = { ACPI_FADT_OFFSET(gpe0_block), ACPI_FADT_OFFSET(gpe0_block_length), 0, - ACPI_FADT_SEPARATE_LENGTH}, + ACPI_FADT_SEPARATE_LENGTH | ACPI_FADT_GPE_REGISTER}, {"Gpe1Block", ACPI_FADT_OFFSET(xgpe1_block), ACPI_FADT_OFFSET(gpe1_block), ACPI_FADT_OFFSET(gpe1_block_length), 0, - ACPI_FADT_SEPARATE_LENGTH} + ACPI_FADT_SEPARATE_LENGTH | ACPI_FADT_GPE_REGISTER} }; #define ACPI_FADT_INFO_ENTRIES \ @@ -175,6 +178,7 @@ static struct acpi_fadt_pm_info fadt_pm_info_table[] = { * space_id - ACPI Space ID for this register * byte_width - Width of this register * address - Address of the register + * register_name - ASCII name of the ACPI register * * RETURN: None * @@ -187,19 +191,29 @@ static struct acpi_fadt_pm_info fadt_pm_info_table[] = { static void acpi_tb_init_generic_address(struct acpi_generic_address *generic_address, u8 space_id, - u8 byte_width, u64 address, char *register_name) + u8 byte_width, + u64 address, char *register_name, u8 flags) { u8 bit_width; - /* Bit width field in the GAS is only one byte long, 255 max */ - + /* + * Bit width field in the GAS is only one byte long, 255 max. + * Check for bit_width overflow in GAS. + */ bit_width = (u8)(byte_width * 8); - - if (byte_width > 31) { /* (31*8)=248 */ - ACPI_ERROR((AE_INFO, - "%s - 32-bit FADT register is too long (%u bytes, %u bits) " - "to convert to GAS struct - 255 bits max, truncating", - register_name, byte_width, (byte_width * 8))); + if (byte_width > 31) { /* (31*8)=248, (32*8)=256 */ + /* + * No error for GPE blocks, because we do not use the bit_width + * for GPEs, the legacy length (byte_width) is used instead to + * allow for a large number of GPEs. + */ + if (!(flags & ACPI_FADT_GPE_REGISTER)) { + ACPI_ERROR((AE_INFO, + "%s - 32-bit FADT register is too long (%u bytes, %u bits) " + "to convert to GAS struct - 255 bits max, truncating", + register_name, byte_width, + (byte_width * 8))); + } bit_width = 255; } @@ -220,6 +234,68 @@ acpi_tb_init_generic_address(struct acpi_generic_address *generic_address, /******************************************************************************* * + * FUNCTION: acpi_tb_select_address + * + * PARAMETERS: register_name - ASCII name of the ACPI register + * address32 - 32-bit address of the register + * address64 - 64-bit address of the register + * + * RETURN: The resolved 64-bit address + * + * DESCRIPTION: Select between 32-bit and 64-bit versions of addresses within + * the FADT. Used for the FACS and DSDT addresses. + * + * NOTES: + * + * Check for FACS and DSDT address mismatches. An address mismatch between + * the 32-bit and 64-bit address fields (FIRMWARE_CTRL/X_FIRMWARE_CTRL and + * DSDT/X_DSDT) could be a corrupted address field or it might indicate + * the presence of two FACS or two DSDT tables. + * + * November 2013: + * By default, as per the ACPICA specification, a valid 64-bit address is + * used regardless of the value of the 32-bit address. However, this + * behavior can be overridden via the acpi_gbl_use32_bit_fadt_addresses flag. + * + ******************************************************************************/ + +static u64 +acpi_tb_select_address(char *register_name, u32 address32, u64 address64) +{ + + if (!address64) { + + /* 64-bit address is zero, use 32-bit address */ + + return ((u64)address32); + } + + if (address32 && (address64 != (u64)address32)) { + + /* Address mismatch between 32-bit and 64-bit versions */ + + ACPI_BIOS_WARNING((AE_INFO, + "32/64X %s address mismatch in FADT: " + "0x%8.8X/0x%8.8X%8.8X, using %u-bit address", + register_name, address32, + ACPI_FORMAT_UINT64(address64), + acpi_gbl_use32_bit_fadt_addresses ? 32 : + 64)); + + /* 32-bit address override */ + + if (acpi_gbl_use32_bit_fadt_addresses) { + return ((u64)address32); + } + } + + /* Default is to use the 64-bit address */ + + return (address64); +} + +/******************************************************************************* + * * FUNCTION: acpi_tb_parse_fadt * * PARAMETERS: table_index - Index for the FADT @@ -268,15 +344,15 @@ void acpi_tb_parse_fadt(u32 table_index) /* Obtain the DSDT and FACS tables via their addresses within the FADT */ - acpi_tb_install_table((acpi_physical_address) acpi_gbl_FADT.Xdsdt, - ACPI_SIG_DSDT, ACPI_TABLE_INDEX_DSDT); + acpi_tb_install_fixed_table((acpi_physical_address) acpi_gbl_FADT.Xdsdt, + ACPI_SIG_DSDT, ACPI_TABLE_INDEX_DSDT); /* If Hardware Reduced flag is set, there is no FACS */ if (!acpi_gbl_reduced_hardware) { - acpi_tb_install_table((acpi_physical_address) acpi_gbl_FADT. - Xfacs, ACPI_SIG_FACS, - ACPI_TABLE_INDEX_FACS); + acpi_tb_install_fixed_table((acpi_physical_address) + acpi_gbl_FADT.Xfacs, ACPI_SIG_FACS, + ACPI_TABLE_INDEX_FACS); } } @@ -331,10 +407,6 @@ void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length) acpi_tb_convert_fadt(); - /* Validate FADT values now, before we make any changes */ - - acpi_tb_validate_fadt(); - /* Initialize the global ACPI register structures */ acpi_tb_setup_fadt_registers(); @@ -344,66 +416,56 @@ void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length) * * FUNCTION: acpi_tb_convert_fadt * - * PARAMETERS: None, uses acpi_gbl_FADT + * PARAMETERS: none - acpi_gbl_FADT is used. * * RETURN: None * * DESCRIPTION: Converts all versions of the FADT to a common internal format. - * Expand 32-bit addresses to 64-bit as necessary. + * Expand 32-bit addresses to 64-bit as necessary. Also validate + * important fields within the FADT. * - * NOTE: acpi_gbl_FADT must be of size (struct acpi_table_fadt), - * and must contain a copy of the actual FADT. + * NOTE: acpi_gbl_FADT must be of size (struct acpi_table_fadt), and must + * contain a copy of the actual BIOS-provided FADT. * * Notes on 64-bit register addresses: * * After this FADT conversion, later ACPICA code will only use the 64-bit "X" * fields of the FADT for all ACPI register addresses. * - * The 64-bit "X" fields are optional extensions to the original 32-bit FADT + * The 64-bit X fields are optional extensions to the original 32-bit FADT * V1.0 fields. Even if they are present in the FADT, they are optional and * are unused if the BIOS sets them to zero. Therefore, we must copy/expand - * 32-bit V1.0 fields if the corresponding X field is zero. + * 32-bit V1.0 fields to the 64-bit X fields if the the 64-bit X field is + * originally zero. * - * For ACPI 1.0 FADTs, all 32-bit address fields are expanded to the - * corresponding "X" fields in the internal FADT. + * For ACPI 1.0 FADTs (that contain no 64-bit addresses), all 32-bit address + * fields are expanded to the corresponding 64-bit X fields in the internal + * common FADT. * * For ACPI 2.0+ FADTs, all valid (non-zero) 32-bit address fields are expanded - * to the corresponding 64-bit X fields. For compatibility with other ACPI - * implementations, we ignore the 64-bit field if the 32-bit field is valid, - * regardless of whether the host OS is 32-bit or 64-bit. + * to the corresponding 64-bit X fields, if the 64-bit field is originally + * zero. Adhering to the ACPI specification, we completely ignore the 32-bit + * field if the 64-bit field is valid, regardless of whether the host OS is + * 32-bit or 64-bit. + * + * Possible additional checks: + * (acpi_gbl_FADT.pm1_event_length >= 4) + * (acpi_gbl_FADT.pm1_control_length >= 2) + * (acpi_gbl_FADT.pm_timer_length >= 4) + * Gpe block lengths must be multiple of 2 * ******************************************************************************/ static void acpi_tb_convert_fadt(void) { + char *name; struct acpi_generic_address *address64; u32 address32; + u8 length; + u8 flags; u32 i; /* - * Expand the 32-bit FACS and DSDT addresses to 64-bit as necessary. - * Later code will always use the X 64-bit field. Also, check for an - * address mismatch between the 32-bit and 64-bit address fields - * (FIRMWARE_CTRL/X_FIRMWARE_CTRL, DSDT/X_DSDT) which would indicate - * the presence of two FACS or two DSDT tables. - */ - if (!acpi_gbl_FADT.Xfacs) { - acpi_gbl_FADT.Xfacs = (u64) acpi_gbl_FADT.facs; - } else if (acpi_gbl_FADT.facs && - (acpi_gbl_FADT.Xfacs != (u64) acpi_gbl_FADT.facs)) { - ACPI_WARNING((AE_INFO, - "32/64 FACS address mismatch in FADT - two FACS tables!")); - } - - if (!acpi_gbl_FADT.Xdsdt) { - acpi_gbl_FADT.Xdsdt = (u64) acpi_gbl_FADT.dsdt; - } else if (acpi_gbl_FADT.dsdt && - (acpi_gbl_FADT.Xdsdt != (u64) acpi_gbl_FADT.dsdt)) { - ACPI_WARNING((AE_INFO, - "32/64 DSDT address mismatch in FADT - two DSDT tables!")); - } - - /* * For ACPI 1.0 FADTs (revision 1 or 2), ensure that reserved fields which * should be zero are indeed zero. This will workaround BIOSs that * inadvertently place values in these fields. @@ -421,119 +483,24 @@ static void acpi_tb_convert_fadt(void) acpi_gbl_FADT.boot_flags = 0; } - /* Update the local FADT table header length */ - - acpi_gbl_FADT.header.length = sizeof(struct acpi_table_fadt); - /* - * Expand the ACPI 1.0 32-bit addresses to the ACPI 2.0 64-bit "X" - * generic address structures as necessary. Later code will always use - * the 64-bit address structures. - * - * March 2009: - * We now always use the 32-bit address if it is valid (non-null). This - * is not in accordance with the ACPI specification which states that - * the 64-bit address supersedes the 32-bit version, but we do this for - * compatibility with other ACPI implementations. Most notably, in the - * case where both the 32 and 64 versions are non-null, we use the 32-bit - * version. This is the only address that is guaranteed to have been - * tested by the BIOS manufacturer. + * Now we can update the local FADT length to the length of the + * current FADT version as defined by the ACPI specification. + * Thus, we will have a common FADT internally. */ - for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) { - address32 = *ACPI_ADD_PTR(u32, - &acpi_gbl_FADT, - fadt_info_table[i].address32); - - address64 = ACPI_ADD_PTR(struct acpi_generic_address, - &acpi_gbl_FADT, - fadt_info_table[i].address64); - - /* - * If both 32- and 64-bit addresses are valid (non-zero), - * they must match. - */ - if (address64->address && address32 && - (address64->address != (u64)address32)) { - ACPI_BIOS_ERROR((AE_INFO, - "32/64X address mismatch in FADT/%s: " - "0x%8.8X/0x%8.8X%8.8X, using 32", - fadt_info_table[i].name, address32, - ACPI_FORMAT_UINT64(address64-> - address))); - } - - /* Always use 32-bit address if it is valid (non-null) */ - - if (address32) { - /* - * Copy the 32-bit address to the 64-bit GAS structure. The - * Space ID is always I/O for 32-bit legacy address fields - */ - acpi_tb_init_generic_address(address64, - ACPI_ADR_SPACE_SYSTEM_IO, - *ACPI_ADD_PTR(u8, - &acpi_gbl_FADT, - fadt_info_table - [i].length), - (u64) address32, - fadt_info_table[i].name); - } - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_validate_fadt - * - * PARAMETERS: table - Pointer to the FADT to be validated - * - * RETURN: None - * - * DESCRIPTION: Validate various important fields within the FADT. If a problem - * is found, issue a message, but no status is returned. - * Used by both the table manager and the disassembler. - * - * Possible additional checks: - * (acpi_gbl_FADT.pm1_event_length >= 4) - * (acpi_gbl_FADT.pm1_control_length >= 2) - * (acpi_gbl_FADT.pm_timer_length >= 4) - * Gpe block lengths must be multiple of 2 - * - ******************************************************************************/ - -static void acpi_tb_validate_fadt(void) -{ - char *name; - struct acpi_generic_address *address64; - u8 length; - u32 i; + acpi_gbl_FADT.header.length = sizeof(struct acpi_table_fadt); /* - * Check for FACS and DSDT address mismatches. An address mismatch between - * the 32-bit and 64-bit address fields (FIRMWARE_CTRL/X_FIRMWARE_CTRL and - * DSDT/X_DSDT) would indicate the presence of two FACS or two DSDT tables. + * Expand the 32-bit FACS and DSDT addresses to 64-bit as necessary. + * Later ACPICA code will always use the X 64-bit field. */ - if (acpi_gbl_FADT.facs && - (acpi_gbl_FADT.Xfacs != (u64)acpi_gbl_FADT.facs)) { - ACPI_BIOS_WARNING((AE_INFO, - "32/64X FACS address mismatch in FADT - " - "0x%8.8X/0x%8.8X%8.8X, using 32", - acpi_gbl_FADT.facs, - ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xfacs))); - - acpi_gbl_FADT.Xfacs = (u64)acpi_gbl_FADT.facs; - } + acpi_gbl_FADT.Xfacs = acpi_tb_select_address("FACS", + acpi_gbl_FADT.facs, + acpi_gbl_FADT.Xfacs); - if (acpi_gbl_FADT.dsdt && - (acpi_gbl_FADT.Xdsdt != (u64)acpi_gbl_FADT.dsdt)) { - ACPI_BIOS_WARNING((AE_INFO, - "32/64X DSDT address mismatch in FADT - " - "0x%8.8X/0x%8.8X%8.8X, using 32", - acpi_gbl_FADT.dsdt, - ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xdsdt))); - - acpi_gbl_FADT.Xdsdt = (u64)acpi_gbl_FADT.dsdt; - } + acpi_gbl_FADT.Xdsdt = acpi_tb_select_address("DSDT", + acpi_gbl_FADT.dsdt, + acpi_gbl_FADT.Xdsdt); /* If Hardware Reduced flag is set, we are all done */ @@ -545,16 +512,95 @@ static void acpi_tb_validate_fadt(void) for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) { /* - * Generate pointer to the 64-bit address, get the register - * length (width) and the register name + * Get the 32-bit and 64-bit addresses, as well as the register + * length and register name. */ + address32 = *ACPI_ADD_PTR(u32, + &acpi_gbl_FADT, + fadt_info_table[i].address32); + address64 = ACPI_ADD_PTR(struct acpi_generic_address, &acpi_gbl_FADT, fadt_info_table[i].address64); - length = - *ACPI_ADD_PTR(u8, &acpi_gbl_FADT, - fadt_info_table[i].length); + + length = *ACPI_ADD_PTR(u8, + &acpi_gbl_FADT, + fadt_info_table[i].length); + name = fadt_info_table[i].name; + flags = fadt_info_table[i].flags; + + /* + * Expand the ACPI 1.0 32-bit addresses to the ACPI 2.0 64-bit "X" + * generic address structures as necessary. Later code will always use + * the 64-bit address structures. + * + * November 2013: + * Now always use the 64-bit address if it is valid (non-zero), in + * accordance with the ACPI specification which states that a 64-bit + * address supersedes the 32-bit version. This behavior can be + * overridden by the acpi_gbl_use32_bit_fadt_addresses flag. + * + * During 64-bit address construction and verification, + * these cases are handled: + * + * Address32 zero, Address64 [don't care] - Use Address64 + * + * Address32 non-zero, Address64 zero - Copy/use Address32 + * Address32 non-zero == Address64 non-zero - Use Address64 + * Address32 non-zero != Address64 non-zero - Warning, use Address64 + * + * Override: if acpi_gbl_use32_bit_fadt_addresses is TRUE, and: + * Address32 non-zero != Address64 non-zero - Warning, copy/use Address32 + * + * Note: space_id is always I/O for 32-bit legacy address fields + */ + if (address32) { + if (!address64->address) { + + /* 64-bit address is zero, use 32-bit address */ + + acpi_tb_init_generic_address(address64, + ACPI_ADR_SPACE_SYSTEM_IO, + *ACPI_ADD_PTR(u8, + &acpi_gbl_FADT, + fadt_info_table + [i]. + length), + (u64)address32, + name, flags); + } else if (address64->address != (u64)address32) { + + /* Address mismatch */ + + ACPI_BIOS_WARNING((AE_INFO, + "32/64X address mismatch in FADT/%s: " + "0x%8.8X/0x%8.8X%8.8X, using %u-bit address", + name, address32, + ACPI_FORMAT_UINT64 + (address64->address), + acpi_gbl_use32_bit_fadt_addresses + ? 32 : 64)); + + if (acpi_gbl_use32_bit_fadt_addresses) { + + /* 32-bit address override */ + + acpi_tb_init_generic_address(address64, + ACPI_ADR_SPACE_SYSTEM_IO, + *ACPI_ADD_PTR + (u8, + &acpi_gbl_FADT, + fadt_info_table + [i]. + length), + (u64) + address32, + name, + flags); + } + } + } /* * For each extended field, check for length mismatch between the @@ -572,7 +618,7 @@ static void acpi_tb_validate_fadt(void) address64->bit_width)); } - if (fadt_info_table[i].type & ACPI_FADT_REQUIRED) { + if (fadt_info_table[i].flags & ACPI_FADT_REQUIRED) { /* * Field is required (Pm1a_event, Pm1a_control). * Both the address and length must be non-zero. @@ -586,7 +632,7 @@ static void acpi_tb_validate_fadt(void) address), length)); } - } else if (fadt_info_table[i].type & ACPI_FADT_SEPARATE_LENGTH) { + } else if (fadt_info_table[i].flags & ACPI_FADT_SEPARATE_LENGTH) { /* * Field is optional (Pm2_control, GPE0, GPE1) AND has its own * length field. If present, both the address and length must @@ -695,7 +741,7 @@ static void acpi_tb_setup_fadt_registers(void) (fadt_pm_info_table[i]. register_num * pm1_register_byte_width), - "PmRegisters"); + "PmRegisters", 0); } } } diff --git a/drivers/acpi/acpica/tbfind.c b/drivers/acpi/acpica/tbfind.c index e4f4f02d49e..cb947700206 100644 --- a/drivers/acpi/acpica/tbfind.c +++ b/drivers/acpi/acpica/tbfind.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -99,8 +99,8 @@ acpi_tb_find_table(char *signature, /* Table is not currently mapped, map it */ status = - acpi_tb_verify_table(&acpi_gbl_root_table_list. - tables[i]); + acpi_tb_validate_table(&acpi_gbl_root_table_list. + tables[i]); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c index 634357d51fe..755b90c40dd 100644 --- a/drivers/acpi/acpica/tbinstal.c +++ b/drivers/acpi/acpica/tbinstal.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -43,687 +43,483 @@ #include <acpi/acpi.h> #include "accommon.h" -#include "acnamesp.h" #include "actables.h" #define _COMPONENT ACPI_TABLES ACPI_MODULE_NAME("tbinstal") -/****************************************************************************** +/* Local prototypes */ +static u8 +acpi_tb_compare_tables(struct acpi_table_desc *table_desc, u32 table_index); + +/******************************************************************************* * - * FUNCTION: acpi_tb_verify_table + * FUNCTION: acpi_tb_compare_tables * - * PARAMETERS: table_desc - table + * PARAMETERS: table_desc - Table 1 descriptor to be compared + * table_index - Index of table 2 to be compared * - * RETURN: Status + * RETURN: TRUE if both tables are identical. * - * DESCRIPTION: this function is called to verify and map table + * DESCRIPTION: This function compares a table with another table that has + * already been installed in the root table list. * - *****************************************************************************/ -acpi_status acpi_tb_verify_table(struct acpi_table_desc *table_desc) + ******************************************************************************/ + +static u8 +acpi_tb_compare_tables(struct acpi_table_desc *table_desc, u32 table_index) { acpi_status status = AE_OK; + u8 is_identical; + struct acpi_table_header *table; + u32 table_length; + u8 table_flags; - ACPI_FUNCTION_TRACE(tb_verify_table); - - /* Map the table if necessary */ - - if (!table_desc->pointer) { - if ((table_desc->flags & ACPI_TABLE_ORIGIN_MASK) == - ACPI_TABLE_ORIGIN_MAPPED) { - table_desc->pointer = - acpi_os_map_memory(table_desc->address, - table_desc->length); - } - if (!table_desc->pointer) { - return_ACPI_STATUS(AE_NO_MEMORY); - } + status = + acpi_tb_acquire_table(&acpi_gbl_root_table_list.tables[table_index], + &table, &table_length, &table_flags); + if (ACPI_FAILURE(status)) { + return (FALSE); } - /* Always calculate checksum, ignore bad checksum if requested */ + /* + * Check for a table match on the entire table length, + * not just the header. + */ + is_identical = (u8)((table_desc->length != table_length || + ACPI_MEMCMP(table_desc->pointer, table, + table_length)) ? FALSE : TRUE); - status = - acpi_tb_verify_checksum(table_desc->pointer, table_desc->length); + /* Release the acquired table */ - return_ACPI_STATUS(status); + acpi_tb_release_table(table, table_length, table_flags); + return (is_identical); } /******************************************************************************* * - * FUNCTION: acpi_tb_add_table + * FUNCTION: acpi_tb_install_table_with_override * - * PARAMETERS: table_desc - Table descriptor - * table_index - Where the table index is returned + * PARAMETERS: table_index - Index into root table array + * new_table_desc - New table descriptor to install + * override - Whether override should be performed * - * RETURN: Status + * RETURN: None * - * DESCRIPTION: This function is called to add an ACPI table. It is used to - * dynamically load tables via the Load and load_table AML - * operators. + * DESCRIPTION: Install an ACPI table into the global data structure. The + * table override mechanism is called to allow the host + * OS to replace any table before it is installed in the root + * table array. * ******************************************************************************/ -acpi_status -acpi_tb_add_table(struct acpi_table_desc *table_desc, u32 *table_index) +void +acpi_tb_install_table_with_override(u32 table_index, + struct acpi_table_desc *new_table_desc, + u8 override) { - u32 i; - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(tb_add_table); - if (!table_desc->pointer) { - status = acpi_tb_verify_table(table_desc); - if (ACPI_FAILURE(status) || !table_desc->pointer) { - return_ACPI_STATUS(status); - } + if (table_index >= acpi_gbl_root_table_list.current_table_count) { + return; } /* - * Validate the incoming table signature. + * ACPI Table Override: * - * 1) Originally, we checked the table signature for "SSDT" or "PSDT". - * 2) We added support for OEMx tables, signature "OEM". - * 3) Valid tables were encountered with a null signature, so we just - * gave up on validating the signature, (05/2008). - * 4) We encountered non-AML tables such as the MADT, which caused - * interpreter errors and kernel faults. So now, we once again allow - * only "SSDT", "OEMx", and now, also a null signature. (05/2011). + * Before we install the table, let the host OS override it with a new + * one if desired. Any table within the RSDT/XSDT can be replaced, + * including the DSDT which is pointed to by the FADT. */ - if ((table_desc->pointer->signature[0] != 0x00) && - (!ACPI_COMPARE_NAME(table_desc->pointer->signature, ACPI_SIG_SSDT)) - && (ACPI_STRNCMP(table_desc->pointer->signature, "OEM", 3))) { - ACPI_BIOS_ERROR((AE_INFO, - "Table has invalid signature [%4.4s] (0x%8.8X), " - "must be SSDT or OEMx", - acpi_ut_valid_acpi_name(table_desc->pointer-> - signature) ? - table_desc->pointer->signature : "????", - *(u32 *)table_desc->pointer->signature)); - - return_ACPI_STATUS(AE_BAD_SIGNATURE); + if (override) { + acpi_tb_override_table(new_table_desc); } - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - - /* Check if table is already registered */ - - for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) { - if (!acpi_gbl_root_table_list.tables[i].pointer) { - status = - acpi_tb_verify_table(&acpi_gbl_root_table_list. - tables[i]); - if (ACPI_FAILURE(status) - || !acpi_gbl_root_table_list.tables[i].pointer) { - continue; - } - } - - /* - * Check for a table match on the entire table length, - * not just the header. - */ - if (table_desc->length != - acpi_gbl_root_table_list.tables[i].length) { - continue; - } + acpi_tb_init_table_descriptor(&acpi_gbl_root_table_list. + tables[table_index], + new_table_desc->address, + new_table_desc->flags, + new_table_desc->pointer); - if (ACPI_MEMCMP(table_desc->pointer, - acpi_gbl_root_table_list.tables[i].pointer, - acpi_gbl_root_table_list.tables[i].length)) { - continue; - } + acpi_tb_print_table_header(new_table_desc->address, + new_table_desc->pointer); - /* - * Note: the current mechanism does not unregister a table if it is - * dynamically unloaded. The related namespace entries are deleted, - * but the table remains in the root table list. - * - * The assumption here is that the number of different tables that - * will be loaded is actually small, and there is minimal overhead - * in just keeping the table in case it is needed again. - * - * If this assumption changes in the future (perhaps on large - * machines with many table load/unload operations), tables will - * need to be unregistered when they are unloaded, and slots in the - * root table list should be reused when empty. - */ - - /* - * Table is already registered. - * We can delete the table that was passed as a parameter. - */ - acpi_tb_delete_table(table_desc); - *table_index = i; + /* Set the global integer width (based upon revision of the DSDT) */ - if (acpi_gbl_root_table_list.tables[i]. - flags & ACPI_TABLE_IS_LOADED) { - - /* Table is still loaded, this is an error */ - - status = AE_ALREADY_EXISTS; - goto release; - } else { - /* Table was unloaded, allow it to be reloaded */ - - table_desc->pointer = - acpi_gbl_root_table_list.tables[i].pointer; - table_desc->address = - acpi_gbl_root_table_list.tables[i].address; - status = AE_OK; - goto print_header; - } + if (table_index == ACPI_TABLE_INDEX_DSDT) { + acpi_ut_set_integer_width(new_table_desc->pointer->revision); } - - /* - * ACPI Table Override: - * Allow the host to override dynamically loaded tables. - * NOTE: the table is fully mapped at this point, and the mapping will - * be deleted by tb_table_override if the table is actually overridden. - */ - (void)acpi_tb_table_override(table_desc->pointer, table_desc); - - /* Add the table to the global root table list */ - - status = acpi_tb_store_table(table_desc->address, table_desc->pointer, - table_desc->length, table_desc->flags, - table_index); - if (ACPI_FAILURE(status)) { - goto release; - } - -print_header: - acpi_tb_print_table_header(table_desc->address, table_desc->pointer); - -release: - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(status); } /******************************************************************************* * - * FUNCTION: acpi_tb_table_override + * FUNCTION: acpi_tb_install_fixed_table * - * PARAMETERS: table_header - Header for the original table - * table_desc - Table descriptor initialized for the - * original table. May or may not be mapped. + * PARAMETERS: address - Physical address of DSDT or FACS + * signature - Table signature, NULL if no need to + * match + * table_index - Index into root table array * - * RETURN: Pointer to the entire new table. NULL if table not overridden. - * If overridden, installs the new table within the input table - * descriptor. + * RETURN: Status * - * DESCRIPTION: Attempt table override by calling the OSL override functions. - * Note: If the table is overridden, then the entire new table - * is mapped and returned by this function. + * DESCRIPTION: Install a fixed ACPI table (DSDT/FACS) into the global data + * structure. * ******************************************************************************/ -struct acpi_table_header *acpi_tb_table_override(struct acpi_table_header - *table_header, - struct acpi_table_desc - *table_desc) +acpi_status +acpi_tb_install_fixed_table(acpi_physical_address address, + char *signature, u32 table_index) { + struct acpi_table_desc new_table_desc; acpi_status status; - struct acpi_table_header *new_table = NULL; - acpi_physical_address new_address = 0; - u32 new_table_length = 0; - u8 new_flags; - char *override_type; - /* (1) Attempt logical override (returns a logical address) */ + ACPI_FUNCTION_TRACE(tb_install_fixed_table); - status = acpi_os_table_override(table_header, &new_table); - if (ACPI_SUCCESS(status) && new_table) { - new_address = ACPI_PTR_TO_PHYSADDR(new_table); - new_table_length = new_table->length; - new_flags = ACPI_TABLE_ORIGIN_OVERRIDE; - override_type = "Logical"; - goto finish_override; + if (!address) { + ACPI_ERROR((AE_INFO, + "Null physical address for ACPI table [%s]", + signature)); + return (AE_NO_MEMORY); } - /* (2) Attempt physical override (returns a physical address) */ - - status = acpi_os_physical_table_override(table_header, - &new_address, - &new_table_length); - if (ACPI_SUCCESS(status) && new_address && new_table_length) { - - /* Map the entire new table */ - - new_table = acpi_os_map_memory(new_address, new_table_length); - if (!new_table) { - ACPI_EXCEPTION((AE_INFO, AE_NO_MEMORY, - "%4.4s %p Attempted physical table override failed", - table_header->signature, - ACPI_CAST_PTR(void, - table_desc->address))); - return (NULL); - } + /* Fill a table descriptor for validation */ - override_type = "Physical"; - new_flags = ACPI_TABLE_ORIGIN_MAPPED; - goto finish_override; + status = acpi_tb_acquire_temp_table(&new_table_desc, address, + ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL); + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, "Could not acquire table length at %p", + ACPI_CAST_PTR(void, address))); + return_ACPI_STATUS(status); } - return (NULL); /* There was no override */ - -finish_override: - - ACPI_INFO((AE_INFO, - "%4.4s %p %s table override, new table: %p", - table_header->signature, - ACPI_CAST_PTR(void, table_desc->address), - override_type, new_table)); + /* Validate and verify a table before installation */ - /* We can now unmap/delete the original table (if fully mapped) */ + status = acpi_tb_verify_temp_table(&new_table_desc, signature); + if (ACPI_FAILURE(status)) { + goto release_and_exit; + } - acpi_tb_delete_table(table_desc); + acpi_tb_install_table_with_override(table_index, &new_table_desc, TRUE); - /* Setup descriptor for the new table */ +release_and_exit: - table_desc->address = new_address; - table_desc->pointer = new_table; - table_desc->length = new_table_length; - table_desc->flags = new_flags; + /* Release the temporary table descriptor */ - return (new_table); + acpi_tb_release_temp_table(&new_table_desc); + return_ACPI_STATUS(status); } /******************************************************************************* * - * FUNCTION: acpi_tb_resize_root_table_list + * FUNCTION: acpi_tb_install_standard_table * - * PARAMETERS: None + * PARAMETERS: address - Address of the table (might be a virtual + * address depending on the table_flags) + * flags - Flags for the table + * reload - Whether reload should be performed + * override - Whether override should be performed + * table_index - Where the table index is returned * * RETURN: Status * - * DESCRIPTION: Expand the size of global table array + * DESCRIPTION: This function is called to install an ACPI table that is + * neither DSDT nor FACS (a "standard" table.) + * When this function is called by "Load" or "LoadTable" opcodes, + * or by acpi_load_table() API, the "Reload" parameter is set. + * After sucessfully returning from this function, table is + * "INSTALLED" but not "VALIDATED". * ******************************************************************************/ -acpi_status acpi_tb_resize_root_table_list(void) +acpi_status +acpi_tb_install_standard_table(acpi_physical_address address, + u8 flags, + u8 reload, u8 override, u32 *table_index) { - struct acpi_table_desc *tables; - u32 table_count; - - ACPI_FUNCTION_TRACE(tb_resize_root_table_list); - - /* allow_resize flag is a parameter to acpi_initialize_tables */ + u32 i; + acpi_status status = AE_OK; + struct acpi_table_desc new_table_desc; - if (!(acpi_gbl_root_table_list.flags & ACPI_ROOT_ALLOW_RESIZE)) { - ACPI_ERROR((AE_INFO, - "Resize of Root Table Array is not allowed")); - return_ACPI_STATUS(AE_SUPPORT); - } + ACPI_FUNCTION_TRACE(tb_install_standard_table); - /* Increase the Table Array size */ + /* Acquire a temporary table descriptor for validation */ - if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) { - table_count = acpi_gbl_root_table_list.max_table_count; - } else { - table_count = acpi_gbl_root_table_list.current_table_count; + status = acpi_tb_acquire_temp_table(&new_table_desc, address, flags); + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, "Could not acquire table length at %p", + ACPI_CAST_PTR(void, address))); + return_ACPI_STATUS(status); } - tables = ACPI_ALLOCATE_ZEROED(((acpi_size) table_count + - ACPI_ROOT_TABLE_SIZE_INCREMENT) * - sizeof(struct acpi_table_desc)); - if (!tables) { - ACPI_ERROR((AE_INFO, - "Could not allocate new root table array")); - return_ACPI_STATUS(AE_NO_MEMORY); + /* + * Optionally do not load any SSDTs from the RSDT/XSDT. This can + * be useful for debugging ACPI problems on some machines. + */ + if (!reload && + acpi_gbl_disable_ssdt_table_install && + ACPI_COMPARE_NAME(&new_table_desc.signature, ACPI_SIG_SSDT)) { + ACPI_INFO((AE_INFO, "Ignoring installation of %4.4s at %p", + new_table_desc.signature.ascii, ACPI_CAST_PTR(void, + address))); + goto release_and_exit; } - /* Copy and free the previous table array */ + /* Validate and verify a table before installation */ - if (acpi_gbl_root_table_list.tables) { - ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables, - (acpi_size) table_count * - sizeof(struct acpi_table_desc)); - - if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) { - ACPI_FREE(acpi_gbl_root_table_list.tables); - } + status = acpi_tb_verify_temp_table(&new_table_desc, NULL); + if (ACPI_FAILURE(status)) { + goto release_and_exit; } - acpi_gbl_root_table_list.tables = tables; - acpi_gbl_root_table_list.max_table_count = - table_count + ACPI_ROOT_TABLE_SIZE_INCREMENT; - acpi_gbl_root_table_list.flags |= ACPI_ROOT_ORIGIN_ALLOCATED; - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_store_table - * - * PARAMETERS: address - Table address - * table - Table header - * length - Table length - * flags - flags - * - * RETURN: Status and table index. - * - * DESCRIPTION: Add an ACPI table to the global table list - * - ******************************************************************************/ + if (reload) { + /* + * Validate the incoming table signature. + * + * 1) Originally, we checked the table signature for "SSDT" or "PSDT". + * 2) We added support for OEMx tables, signature "OEM". + * 3) Valid tables were encountered with a null signature, so we just + * gave up on validating the signature, (05/2008). + * 4) We encountered non-AML tables such as the MADT, which caused + * interpreter errors and kernel faults. So now, we once again allow + * only "SSDT", "OEMx", and now, also a null signature. (05/2011). + */ + if ((new_table_desc.signature.ascii[0] != 0x00) && + (!ACPI_COMPARE_NAME + (&new_table_desc.signature, ACPI_SIG_SSDT)) + && (ACPI_STRNCMP(new_table_desc.signature.ascii, "OEM", 3))) + { + ACPI_BIOS_ERROR((AE_INFO, + "Table has invalid signature [%4.4s] (0x%8.8X), " + "must be SSDT or OEMx", + acpi_ut_valid_acpi_name(new_table_desc. + signature. + ascii) ? + new_table_desc.signature. + ascii : "????", + new_table_desc.signature.integer)); + + status = AE_BAD_SIGNATURE; + goto release_and_exit; + } -acpi_status -acpi_tb_store_table(acpi_physical_address address, - struct acpi_table_header *table, - u32 length, u8 flags, u32 *table_index) -{ - acpi_status status; - struct acpi_table_desc *new_table; + /* Check if table is already registered */ - /* Ensure that there is room for the table in the Root Table List */ + for (i = 0; i < acpi_gbl_root_table_list.current_table_count; + ++i) { + /* + * Check for a table match on the entire table length, + * not just the header. + */ + if (!acpi_tb_compare_tables(&new_table_desc, i)) { + continue; + } - if (acpi_gbl_root_table_list.current_table_count >= - acpi_gbl_root_table_list.max_table_count) { - status = acpi_tb_resize_root_table_list(); - if (ACPI_FAILURE(status)) { - return (status); + /* + * Note: the current mechanism does not unregister a table if it is + * dynamically unloaded. The related namespace entries are deleted, + * but the table remains in the root table list. + * + * The assumption here is that the number of different tables that + * will be loaded is actually small, and there is minimal overhead + * in just keeping the table in case it is needed again. + * + * If this assumption changes in the future (perhaps on large + * machines with many table load/unload operations), tables will + * need to be unregistered when they are unloaded, and slots in the + * root table list should be reused when empty. + */ + if (acpi_gbl_root_table_list.tables[i]. + flags & ACPI_TABLE_IS_LOADED) { + + /* Table is still loaded, this is an error */ + + status = AE_ALREADY_EXISTS; + goto release_and_exit; + } else { + /* + * Table was unloaded, allow it to be reloaded. + * As we are going to return AE_OK to the caller, we should + * take the responsibility of freeing the input descriptor. + * Refill the input descriptor to ensure + * acpi_tb_install_table_with_override() can be called again to + * indicate the re-installation. + */ + acpi_tb_uninstall_table(&new_table_desc); + *table_index = i; + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + return_ACPI_STATUS(AE_OK); + } } } - new_table = - &acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list. - current_table_count]; - - /* Initialize added table */ - - new_table->address = address; - new_table->pointer = table; - new_table->length = length; - new_table->owner_id = 0; - new_table->flags = flags; - - ACPI_MOVE_32_TO_32(&new_table->signature, table->signature); - - *table_index = acpi_gbl_root_table_list.current_table_count; - acpi_gbl_root_table_list.current_table_count++; - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_delete_table - * - * PARAMETERS: table_index - Table index - * - * RETURN: None - * - * DESCRIPTION: Delete one internal ACPI table - * - ******************************************************************************/ + /* Add the table to the global root table list */ -void acpi_tb_delete_table(struct acpi_table_desc *table_desc) -{ - /* Table must be mapped or allocated */ - if (!table_desc->pointer) { - return; + status = acpi_tb_get_next_root_index(&i); + if (ACPI_FAILURE(status)) { + goto release_and_exit; } - switch (table_desc->flags & ACPI_TABLE_ORIGIN_MASK) { - case ACPI_TABLE_ORIGIN_MAPPED: - - acpi_os_unmap_memory(table_desc->pointer, table_desc->length); - break; - - case ACPI_TABLE_ORIGIN_ALLOCATED: - - ACPI_FREE(table_desc->pointer); - break; - /* Not mapped or allocated, there is nothing we can do */ + *table_index = i; + acpi_tb_install_table_with_override(i, &new_table_desc, override); - default: +release_and_exit: - return; - } + /* Release the temporary table descriptor */ - table_desc->pointer = NULL; + acpi_tb_release_temp_table(&new_table_desc); + return_ACPI_STATUS(status); } /******************************************************************************* * - * FUNCTION: acpi_tb_terminate + * FUNCTION: acpi_tb_override_table * - * PARAMETERS: None + * PARAMETERS: old_table_desc - Validated table descriptor to be + * overridden * * RETURN: None * - * DESCRIPTION: Delete all internal ACPI tables + * DESCRIPTION: Attempt table override by calling the OSL override functions. + * Note: If the table is overridden, then the entire new table + * is acquired and returned by this function. + * Before/after invocation, the table descriptor is in a state + * that is "VALIDATED". * ******************************************************************************/ -void acpi_tb_terminate(void) +void acpi_tb_override_table(struct acpi_table_desc *old_table_desc) { - u32 i; - - ACPI_FUNCTION_TRACE(tb_terminate); - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - - /* Delete the individual tables */ + acpi_status status; + char *override_type; + struct acpi_table_desc new_table_desc; + struct acpi_table_header *table; + acpi_physical_address address; + u32 length; - for (i = 0; i < acpi_gbl_root_table_list.current_table_count; i++) { - acpi_tb_delete_table(&acpi_gbl_root_table_list.tables[i]); - } + /* (1) Attempt logical override (returns a logical address) */ - /* - * Delete the root table array if allocated locally. Array cannot be - * mapped, so we don't need to check for that flag. - */ - if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) { - ACPI_FREE(acpi_gbl_root_table_list.tables); + status = acpi_os_table_override(old_table_desc->pointer, &table); + if (ACPI_SUCCESS(status) && table) { + acpi_tb_acquire_temp_table(&new_table_desc, + ACPI_PTR_TO_PHYSADDR(table), + ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL); + override_type = "Logical"; + goto finish_override; } - acpi_gbl_root_table_list.tables = NULL; - acpi_gbl_root_table_list.flags = 0; - acpi_gbl_root_table_list.current_table_count = 0; + /* (2) Attempt physical override (returns a physical address) */ - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "ACPI Tables freed\n")); - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + status = acpi_os_physical_table_override(old_table_desc->pointer, + &address, &length); + if (ACPI_SUCCESS(status) && address && length) { + acpi_tb_acquire_temp_table(&new_table_desc, address, + ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL); + override_type = "Physical"; + goto finish_override; + } - return_VOID; -} + return; /* There was no override */ -/******************************************************************************* - * - * FUNCTION: acpi_tb_delete_namespace_by_owner - * - * PARAMETERS: table_index - Table index - * - * RETURN: Status - * - * DESCRIPTION: Delete all namespace objects created when this table was loaded. - * - ******************************************************************************/ - -acpi_status acpi_tb_delete_namespace_by_owner(u32 table_index) -{ - acpi_owner_id owner_id; - acpi_status status; +finish_override: - ACPI_FUNCTION_TRACE(tb_delete_namespace_by_owner); + /* Validate and verify a table before overriding */ - status = acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + status = acpi_tb_verify_temp_table(&new_table_desc, NULL); if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); + return; } - if (table_index >= acpi_gbl_root_table_list.current_table_count) { - - /* The table index does not exist */ - - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(AE_NOT_EXIST); - } + ACPI_INFO((AE_INFO, "%4.4s " ACPI_PRINTF_UINT + " %s table override, new table: " ACPI_PRINTF_UINT, + old_table_desc->signature.ascii, + ACPI_FORMAT_TO_UINT(old_table_desc->address), + override_type, ACPI_FORMAT_TO_UINT(new_table_desc.address))); - /* Get the owner ID for this table, used to delete namespace nodes */ + /* We can now uninstall the original table */ - owner_id = acpi_gbl_root_table_list.tables[table_index].owner_id; - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + acpi_tb_uninstall_table(old_table_desc); /* - * Need to acquire the namespace writer lock to prevent interference - * with any concurrent namespace walks. The interpreter must be - * released during the deletion since the acquisition of the deletion - * lock may block, and also since the execution of a namespace walk - * must be allowed to use the interpreter. + * Replace the original table descriptor and keep its state as + * "VALIDATED". */ - (void)acpi_ut_release_mutex(ACPI_MTX_INTERPRETER); - status = acpi_ut_acquire_write_lock(&acpi_gbl_namespace_rw_lock); - - acpi_ns_delete_namespace_by_owner(owner_id); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } + acpi_tb_init_table_descriptor(old_table_desc, new_table_desc.address, + new_table_desc.flags, + new_table_desc.pointer); + acpi_tb_validate_temp_table(old_table_desc); - acpi_ut_release_write_lock(&acpi_gbl_namespace_rw_lock); + /* Release the temporary table descriptor */ - status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER); - return_ACPI_STATUS(status); + acpi_tb_release_temp_table(&new_table_desc); } /******************************************************************************* * - * FUNCTION: acpi_tb_allocate_owner_id + * FUNCTION: acpi_tb_store_table * - * PARAMETERS: table_index - Table index + * PARAMETERS: address - Table address + * table - Table header + * length - Table length + * flags - Install flags + * table_index - Where the table index is returned * - * RETURN: Status + * RETURN: Status and table index. * - * DESCRIPTION: Allocates owner_id in table_desc + * DESCRIPTION: Add an ACPI table to the global table list * ******************************************************************************/ -acpi_status acpi_tb_allocate_owner_id(u32 table_index) +acpi_status +acpi_tb_store_table(acpi_physical_address address, + struct acpi_table_header * table, + u32 length, u8 flags, u32 *table_index) { - acpi_status status = AE_BAD_PARAMETER; - - ACPI_FUNCTION_TRACE(tb_allocate_owner_id); + acpi_status status; + struct acpi_table_desc *table_desc; - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.current_table_count) { - status = acpi_ut_allocate_owner_id - (&(acpi_gbl_root_table_list.tables[table_index].owner_id)); + status = acpi_tb_get_next_root_index(table_index); + if (ACPI_FAILURE(status)) { + return (status); } - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_release_owner_id - * - * PARAMETERS: table_index - Table index - * - * RETURN: Status - * - * DESCRIPTION: Releases owner_id in table_desc - * - ******************************************************************************/ - -acpi_status acpi_tb_release_owner_id(u32 table_index) -{ - acpi_status status = AE_BAD_PARAMETER; - - ACPI_FUNCTION_TRACE(tb_release_owner_id); - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.current_table_count) { - acpi_ut_release_owner_id(& - (acpi_gbl_root_table_list. - tables[table_index].owner_id)); - status = AE_OK; - } + /* Initialize added table */ - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(status); + table_desc = &acpi_gbl_root_table_list.tables[*table_index]; + acpi_tb_init_table_descriptor(table_desc, address, flags, table); + table_desc->pointer = table; + return (AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_tb_get_owner_id + * FUNCTION: acpi_tb_uninstall_table * - * PARAMETERS: table_index - Table index - * owner_id - Where the table owner_id is returned + * PARAMETERS: table_desc - Table descriptor * - * RETURN: Status + * RETURN: None * - * DESCRIPTION: returns owner_id for the ACPI table + * DESCRIPTION: Delete one internal ACPI table * ******************************************************************************/ -acpi_status acpi_tb_get_owner_id(u32 table_index, acpi_owner_id *owner_id) +void acpi_tb_uninstall_table(struct acpi_table_desc *table_desc) { - acpi_status status = AE_BAD_PARAMETER; - - ACPI_FUNCTION_TRACE(tb_get_owner_id); - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.current_table_count) { - *owner_id = - acpi_gbl_root_table_list.tables[table_index].owner_id; - status = AE_OK; - } - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_is_table_loaded - * - * PARAMETERS: table_index - Table index - * - * RETURN: Table Loaded Flag - * - ******************************************************************************/ + ACPI_FUNCTION_TRACE(tb_uninstall_table); -u8 acpi_tb_is_table_loaded(u32 table_index) -{ - u8 is_loaded = FALSE; + /* Table must be installed */ - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.current_table_count) { - is_loaded = (u8) - (acpi_gbl_root_table_list.tables[table_index].flags & - ACPI_TABLE_IS_LOADED); + if (!table_desc->address) { + return_VOID; } - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return (is_loaded); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_set_table_loaded_flag - * - * PARAMETERS: table_index - Table index - * is_loaded - TRUE if table is loaded, FALSE otherwise - * - * RETURN: None - * - * DESCRIPTION: Sets the table loaded flag to either TRUE or FALSE. - * - ******************************************************************************/ - -void acpi_tb_set_table_loaded_flag(u32 table_index, u8 is_loaded) -{ + acpi_tb_invalidate_table(table_desc); - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.current_table_count) { - if (is_loaded) { - acpi_gbl_root_table_list.tables[table_index].flags |= - ACPI_TABLE_IS_LOADED; - } else { - acpi_gbl_root_table_list.tables[table_index].flags &= - ~ACPI_TABLE_IS_LOADED; - } + if ((table_desc->flags & ACPI_TABLE_ORIGIN_MASK) == + ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL) { + ACPI_FREE(ACPI_CAST_PTR(void, table_desc->address)); } - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + table_desc->address = ACPI_PTR_TO_PHYSADDR(NULL); + return_VOID; } diff --git a/drivers/acpi/acpica/tbprint.c b/drivers/acpi/acpica/tbprint.c index 6866e767ba9..df3bb20ea32 100644 --- a/drivers/acpi/acpica/tbprint.c +++ b/drivers/acpi/acpica/tbprint.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -128,15 +128,17 @@ acpi_tb_print_table_header(acpi_physical_address address, struct acpi_table_header local_header; /* - * The reason that the Address is cast to a void pointer is so that we - * can use %p which will work properly on both 32-bit and 64-bit hosts. + * The reason that we use ACPI_PRINTF_UINT and ACPI_FORMAT_TO_UINT is to + * support both 32-bit and 64-bit hosts/addresses in a consistent manner. + * The %p specifier does not emit uniform output on all hosts. On some, + * leading zeros are not supported. */ if (ACPI_COMPARE_NAME(header->signature, ACPI_SIG_FACS)) { /* FACS only has signature and length fields */ - ACPI_INFO((AE_INFO, "%4.4s %p %06X", - header->signature, ACPI_CAST_PTR(void, address), + ACPI_INFO((AE_INFO, "%-4.4s " ACPI_PRINTF_UINT " %06X", + header->signature, ACPI_FORMAT_TO_UINT(address), header->length)); } else if (ACPI_VALIDATE_RSDP_SIG(header->signature)) { @@ -147,8 +149,9 @@ acpi_tb_print_table_header(acpi_physical_address address, header)->oem_id, ACPI_OEM_ID_SIZE); acpi_tb_fix_string(local_header.oem_id, ACPI_OEM_ID_SIZE); - ACPI_INFO((AE_INFO, "RSDP %p %06X (v%.2d %6.6s)", - ACPI_CAST_PTR(void, address), + ACPI_INFO((AE_INFO, + "RSDP " ACPI_PRINTF_UINT " %06X (v%.2d %-6.6s)", + ACPI_FORMAT_TO_UINT(address), (ACPI_CAST_PTR(struct acpi_table_rsdp, header)-> revision > 0) ? ACPI_CAST_PTR(struct acpi_table_rsdp, @@ -162,8 +165,9 @@ acpi_tb_print_table_header(acpi_physical_address address, acpi_tb_cleanup_table_header(&local_header, header); ACPI_INFO((AE_INFO, - "%4.4s %p %06X (v%.2d %6.6s %8.8s %08X %4.4s %08X)", - local_header.signature, ACPI_CAST_PTR(void, address), + "%-4.4s " ACPI_PRINTF_UINT + " %06X (v%.2d %-6.6s %-8.8s %08X %-4.4s %08X)", + local_header.signature, ACPI_FORMAT_TO_UINT(address), local_header.length, local_header.revision, local_header.oem_id, local_header.oem_table_id, local_header.oem_revision, diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c index 3d6bb83aa7e..6b1ca9991b9 100644 --- a/drivers/acpi/acpica/tbutils.c +++ b/drivers/acpi/acpica/tbutils.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -52,66 +52,6 @@ ACPI_MODULE_NAME("tbutils") static acpi_physical_address acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size); -/******************************************************************************* - * - * FUNCTION: acpi_tb_check_xsdt - * - * PARAMETERS: address - Pointer to the XSDT - * - * RETURN: status - * AE_OK - XSDT is okay - * AE_NO_MEMORY - can't map XSDT - * AE_INVALID_TABLE_LENGTH - invalid table length - * AE_NULL_ENTRY - XSDT has NULL entry - * - * DESCRIPTION: validate XSDT -******************************************************************************/ - -static acpi_status -acpi_tb_check_xsdt(acpi_physical_address address) -{ - struct acpi_table_header *table; - u32 length; - u64 xsdt_entry_address; - u8 *table_entry; - u32 table_count; - int i; - - table = acpi_os_map_memory(address, sizeof(struct acpi_table_header)); - if (!table) - return AE_NO_MEMORY; - - length = table->length; - acpi_os_unmap_memory(table, sizeof(struct acpi_table_header)); - if (length < sizeof(struct acpi_table_header)) - return AE_INVALID_TABLE_LENGTH; - - table = acpi_os_map_memory(address, length); - if (!table) - return AE_NO_MEMORY; - - /* Calculate the number of tables described in XSDT */ - table_count = - (u32) ((table->length - - sizeof(struct acpi_table_header)) / sizeof(u64)); - table_entry = - ACPI_CAST_PTR(u8, table) + sizeof(struct acpi_table_header); - for (i = 0; i < table_count; i++) { - ACPI_MOVE_64_TO_64(&xsdt_entry_address, table_entry); - if (!xsdt_entry_address) { - /* XSDT has NULL entry */ - break; - } - table_entry += sizeof(u64); - } - acpi_os_unmap_memory(table, length); - - if (i < table_count) - return AE_NULL_ENTRY; - else - return AE_OK; -} - #if (!ACPI_REDUCED_HARDWARE) /******************************************************************************* * @@ -236,9 +176,13 @@ struct acpi_table_header *acpi_tb_copy_dsdt(u32 table_index) } ACPI_MEMCPY(new_table, table_desc->pointer, table_desc->length); - acpi_tb_delete_table(table_desc); - table_desc->pointer = new_table; - table_desc->flags = ACPI_TABLE_ORIGIN_ALLOCATED; + acpi_tb_uninstall_table(table_desc); + + acpi_tb_init_table_descriptor(&acpi_gbl_root_table_list. + tables[ACPI_TABLE_INDEX_DSDT], + ACPI_PTR_TO_PHYSADDR(new_table), + ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL, + new_table); ACPI_INFO((AE_INFO, "Forced DSDT copy: length 0x%05X copied locally, original unmapped", @@ -249,116 +193,6 @@ struct acpi_table_header *acpi_tb_copy_dsdt(u32 table_index) /******************************************************************************* * - * FUNCTION: acpi_tb_install_table - * - * PARAMETERS: address - Physical address of DSDT or FACS - * signature - Table signature, NULL if no need to - * match - * table_index - Index into root table array - * - * RETURN: None - * - * DESCRIPTION: Install an ACPI table into the global data structure. The - * table override mechanism is called to allow the host - * OS to replace any table before it is installed in the root - * table array. - * - ******************************************************************************/ - -void -acpi_tb_install_table(acpi_physical_address address, - char *signature, u32 table_index) -{ - struct acpi_table_header *table; - struct acpi_table_header *final_table; - struct acpi_table_desc *table_desc; - - if (!address) { - ACPI_ERROR((AE_INFO, - "Null physical address for ACPI table [%s]", - signature)); - return; - } - - /* Map just the table header */ - - table = acpi_os_map_memory(address, sizeof(struct acpi_table_header)); - if (!table) { - ACPI_ERROR((AE_INFO, - "Could not map memory for table [%s] at %p", - signature, ACPI_CAST_PTR(void, address))); - return; - } - - /* If a particular signature is expected (DSDT/FACS), it must match */ - - if (signature && !ACPI_COMPARE_NAME(table->signature, signature)) { - ACPI_BIOS_ERROR((AE_INFO, - "Invalid signature 0x%X for ACPI table, expected [%s]", - *ACPI_CAST_PTR(u32, table->signature), - signature)); - goto unmap_and_exit; - } - - /* - * Initialize the table entry. Set the pointer to NULL, since the - * table is not fully mapped at this time. - */ - table_desc = &acpi_gbl_root_table_list.tables[table_index]; - - table_desc->address = address; - table_desc->pointer = NULL; - table_desc->length = table->length; - table_desc->flags = ACPI_TABLE_ORIGIN_MAPPED; - ACPI_MOVE_32_TO_32(table_desc->signature.ascii, table->signature); - - /* - * ACPI Table Override: - * - * Before we install the table, let the host OS override it with a new - * one if desired. Any table within the RSDT/XSDT can be replaced, - * including the DSDT which is pointed to by the FADT. - * - * NOTE: If the table is overridden, then final_table will contain a - * mapped pointer to the full new table. If the table is not overridden, - * or if there has been a physical override, then the table will be - * fully mapped later (in verify table). In any case, we must - * unmap the header that was mapped above. - */ - final_table = acpi_tb_table_override(table, table_desc); - if (!final_table) { - final_table = table; /* There was no override */ - } - - acpi_tb_print_table_header(table_desc->address, final_table); - - /* Set the global integer width (based upon revision of the DSDT) */ - - if (table_index == ACPI_TABLE_INDEX_DSDT) { - acpi_ut_set_integer_width(final_table->revision); - } - - /* - * If we have a physical override during this early loading of the ACPI - * tables, unmap the table for now. It will be mapped again later when - * it is actually used. This supports very early loading of ACPI tables, - * before virtual memory is fully initialized and running within the - * host OS. Note: A logical override has the ACPI_TABLE_ORIGIN_OVERRIDE - * flag set and will not be deleted below. - */ - if (final_table != table) { - acpi_tb_delete_table(table_desc); - } - -unmap_and_exit: - - /* Always unmap the table header that we mapped above */ - - acpi_os_unmap_memory(table, sizeof(struct acpi_table_header)); -} - -/******************************************************************************* - * * FUNCTION: acpi_tb_get_root_table_entry * * PARAMETERS: table_entry - Pointer to the RSDT/XSDT table entry @@ -383,7 +217,7 @@ acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size) * Get the table physical address (32-bit for RSDT, 64-bit for XSDT): * Note: Addresses are 32-bit aligned (not 64) in both RSDT and XSDT */ - if (table_entry_size == sizeof(u32)) { + if (table_entry_size == ACPI_RSDT_ENTRY_SIZE) { /* * 32-bit platform, RSDT: Return 32-bit table entry * 64-bit platform, RSDT: Expand 32-bit to 64-bit and return @@ -438,16 +272,15 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) u32 table_count; struct acpi_table_header *table; acpi_physical_address address; - acpi_physical_address uninitialized_var(rsdt_address); u32 length; u8 *table_entry; acpi_status status; + u32 table_index; ACPI_FUNCTION_TRACE(tb_parse_root_table); - /* - * Map the entire RSDP and extract the address of the RSDT or XSDT - */ + /* Map the entire RSDP and extract the address of the RSDT or XSDT */ + rsdp = acpi_os_map_memory(rsdp_address, sizeof(struct acpi_table_rsdp)); if (!rsdp) { return_ACPI_STATUS(AE_NO_MEMORY); @@ -457,24 +290,22 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) ACPI_CAST_PTR(struct acpi_table_header, rsdp)); - /* Differentiate between RSDT and XSDT root tables */ + /* Use XSDT if present and not overridden. Otherwise, use RSDT */ - if (rsdp->revision > 1 && rsdp->xsdt_physical_address - && !acpi_rsdt_forced) { + if ((rsdp->revision > 1) && + rsdp->xsdt_physical_address && !acpi_gbl_do_not_use_xsdt) { /* - * Root table is an XSDT (64-bit physical addresses). We must use the - * XSDT if the revision is > 1 and the XSDT pointer is present, as per - * the ACPI specification. + * RSDP contains an XSDT (64-bit physical addresses). We must use + * the XSDT if the revision is > 1 and the XSDT pointer is present, + * as per the ACPI specification. */ address = (acpi_physical_address) rsdp->xsdt_physical_address; - table_entry_size = sizeof(u64); - rsdt_address = (acpi_physical_address) - rsdp->rsdt_physical_address; + table_entry_size = ACPI_XSDT_ENTRY_SIZE; } else { /* Root table is an RSDT (32-bit physical addresses) */ address = (acpi_physical_address) rsdp->rsdt_physical_address; - table_entry_size = sizeof(u32); + table_entry_size = ACPI_RSDT_ENTRY_SIZE; } /* @@ -483,15 +314,6 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) */ acpi_os_unmap_memory(rsdp, sizeof(struct acpi_table_rsdp)); - if (table_entry_size == sizeof(u64)) { - if (acpi_tb_check_xsdt(address) == AE_NULL_ENTRY) { - /* XSDT has NULL entry, RSDT is used */ - address = rsdt_address; - table_entry_size = sizeof(u32); - ACPI_WARNING((AE_INFO, "BIOS XSDT has NULL entry, " - "using RSDT")); - } - } /* Map the RSDT/XSDT table header to get the full table length */ table = acpi_os_map_memory(address, sizeof(struct acpi_table_header)); @@ -501,12 +323,14 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) acpi_tb_print_table_header(address, table); - /* Get the length of the full table, verify length and map entire table */ - + /* + * Validate length of the table, and map entire table. + * Minimum length table must contain at least one entry. + */ length = table->length; acpi_os_unmap_memory(table, sizeof(struct acpi_table_header)); - if (length < sizeof(struct acpi_table_header)) { + if (length < (sizeof(struct acpi_table_header) + table_entry_size)) { ACPI_BIOS_ERROR((AE_INFO, "Invalid table length 0x%X in RSDT/XSDT", length)); @@ -526,72 +350,52 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) return_ACPI_STATUS(status); } - /* Calculate the number of tables described in the root table */ + /* Get the number of entries and pointer to first entry */ table_count = (u32)((table->length - sizeof(struct acpi_table_header)) / table_entry_size); + table_entry = ACPI_ADD_PTR(u8, table, sizeof(struct acpi_table_header)); + /* * First two entries in the table array are reserved for the DSDT * and FACS, which are not actually present in the RSDT/XSDT - they * come from the FADT */ - table_entry = - ACPI_CAST_PTR(u8, table) + sizeof(struct acpi_table_header); acpi_gbl_root_table_list.current_table_count = 2; - /* - * Initialize the root table array from the RSDT/XSDT - */ + /* Initialize the root table array from the RSDT/XSDT */ + for (i = 0; i < table_count; i++) { - if (acpi_gbl_root_table_list.current_table_count >= - acpi_gbl_root_table_list.max_table_count) { - - /* There is no more room in the root table array, attempt resize */ - - status = acpi_tb_resize_root_table_list(); - if (ACPI_FAILURE(status)) { - ACPI_WARNING((AE_INFO, - "Truncating %u table entries!", - (unsigned) (table_count - - (acpi_gbl_root_table_list. - current_table_count - - 2)))); - break; - } - } /* Get the table physical address (32-bit for RSDT, 64-bit for XSDT) */ - acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list. - current_table_count].address = + address = acpi_tb_get_root_table_entry(table_entry, table_entry_size); - table_entry += table_entry_size; - acpi_gbl_root_table_list.current_table_count++; - } + /* Skip NULL entries in RSDT/XSDT */ - /* - * It is not possible to map more than one entry in some environments, - * so unmap the root table here before mapping other tables - */ - acpi_os_unmap_memory(table, length); - - /* - * Complete the initialization of the root table array by examining - * the header of each table - */ - for (i = 2; i < acpi_gbl_root_table_list.current_table_count; i++) { - acpi_tb_install_table(acpi_gbl_root_table_list.tables[i]. - address, NULL, i); + if (!address) { + goto next_table; + } - /* Special case for FADT - get the DSDT and FACS */ + status = acpi_tb_install_standard_table(address, + ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL, + FALSE, TRUE, + &table_index); - if (ACPI_COMPARE_NAME - (&acpi_gbl_root_table_list.tables[i].signature, - ACPI_SIG_FADT)) { - acpi_tb_parse_fadt(i); + if (ACPI_SUCCESS(status) && + ACPI_COMPARE_NAME(&acpi_gbl_root_table_list. + tables[table_index].signature, + ACPI_SIG_FADT)) { + acpi_tb_parse_fadt(table_index); } + +next_table: + + table_entry += table_entry_size; } + acpi_os_unmap_memory(table, length); + return_ACPI_STATUS(AE_OK); } diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c index db826eaadd1..6482b0ded65 100644 --- a/drivers/acpi/acpica/tbxface.c +++ b/drivers/acpi/acpica/tbxface.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -206,8 +206,8 @@ acpi_status acpi_get_table_header(char *signature, u32 instance, struct acpi_table_header *out_table_header) { - u32 i; - u32 j; + u32 i; + u32 j; struct acpi_table_header *header; /* Parameter validation */ @@ -233,7 +233,7 @@ acpi_get_table_header(char *signature, if (!acpi_gbl_root_table_list.tables[i].pointer) { if ((acpi_gbl_root_table_list.tables[i].flags & ACPI_TABLE_ORIGIN_MASK) == - ACPI_TABLE_ORIGIN_MAPPED) { + ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL) { header = acpi_os_map_memory(acpi_gbl_root_table_list. tables[i].address, @@ -321,8 +321,8 @@ acpi_get_table_with_size(char *signature, u32 instance, struct acpi_table_header **out_table, acpi_size *tbl_size) { - u32 i; - u32 j; + u32 i; + u32 j; acpi_status status; /* Parameter validation */ @@ -346,7 +346,7 @@ acpi_get_table_with_size(char *signature, } status = - acpi_tb_verify_table(&acpi_gbl_root_table_list.tables[i]); + acpi_tb_validate_table(&acpi_gbl_root_table_list.tables[i]); if (ACPI_SUCCESS(status)) { *out_table = acpi_gbl_root_table_list.tables[i].pointer; *tbl_size = acpi_gbl_root_table_list.tables[i].length; @@ -390,7 +390,7 @@ ACPI_EXPORT_SYMBOL(acpi_get_table) * ******************************************************************************/ acpi_status -acpi_get_table_by_index(u32 table_index, struct acpi_table_header **table) +acpi_get_table_by_index(u32 table_index, struct acpi_table_header ** table) { acpi_status status; @@ -416,8 +416,8 @@ acpi_get_table_by_index(u32 table_index, struct acpi_table_header **table) /* Table is not mapped, map it */ status = - acpi_tb_verify_table(&acpi_gbl_root_table_list. - tables[table_index]); + acpi_tb_validate_table(&acpi_gbl_root_table_list. + tables[table_index]); if (ACPI_FAILURE(status)) { (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); return_ACPI_STATUS(status); diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c index 60b5a871833..ab5308b81aa 100644 --- a/drivers/acpi/acpica/tbxfload.c +++ b/drivers/acpi/acpica/tbxfload.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -117,7 +117,7 @@ static acpi_status acpi_tb_load_namespace(void) tables[ACPI_TABLE_INDEX_DSDT].signature), ACPI_SIG_DSDT) || - ACPI_FAILURE(acpi_tb_verify_table + ACPI_FAILURE(acpi_tb_validate_table (&acpi_gbl_root_table_list. tables[ACPI_TABLE_INDEX_DSDT]))) { status = AE_NO_ACPI_TABLES; @@ -128,7 +128,7 @@ static acpi_status acpi_tb_load_namespace(void) * Save the DSDT pointer for simple access. This is the mapped memory * address. We must take care here because the address of the .Tables * array can change dynamically as tables are loaded at run-time. Note: - * .Pointer field is not validated until after call to acpi_tb_verify_table. + * .Pointer field is not validated until after call to acpi_tb_validate_table. */ acpi_gbl_DSDT = acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].pointer; @@ -174,24 +174,11 @@ static acpi_status acpi_tb_load_namespace(void) (acpi_gbl_root_table_list.tables[i]. signature), ACPI_SIG_PSDT)) || - ACPI_FAILURE(acpi_tb_verify_table + ACPI_FAILURE(acpi_tb_validate_table (&acpi_gbl_root_table_list.tables[i]))) { continue; } - /* - * Optionally do not load any SSDTs from the RSDT/XSDT. This can - * be useful for debugging ACPI problems on some machines. - */ - if (acpi_gbl_disable_ssdt_table_load) { - ACPI_INFO((AE_INFO, "Ignoring %4.4s at %p", - acpi_gbl_root_table_list.tables[i].signature. - ascii, ACPI_CAST_PTR(void, - acpi_gbl_root_table_list. - tables[i].address))); - continue; - } - /* Ignore errors while loading tables, get as many as possible */ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); @@ -208,6 +195,45 @@ unlock_and_exit: /******************************************************************************* * + * FUNCTION: acpi_install_table + * + * PARAMETERS: address - Address of the ACPI table to be installed. + * physical - Whether the address is a physical table + * address or not + * + * RETURN: Status + * + * DESCRIPTION: Dynamically install an ACPI table. + * Note: This function should only be invoked after + * acpi_initialize_tables() and before acpi_load_tables(). + * + ******************************************************************************/ + +acpi_status __init +acpi_install_table(acpi_physical_address address, u8 physical) +{ + acpi_status status; + u8 flags; + u32 table_index; + + ACPI_FUNCTION_TRACE(acpi_install_table); + + if (physical) { + flags = ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL; + } else { + flags = ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL; + } + + status = acpi_tb_install_standard_table(address, flags, + FALSE, FALSE, &table_index); + + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL_INIT(acpi_install_table) + +/******************************************************************************* + * * FUNCTION: acpi_load_table * * PARAMETERS: table - Pointer to a buffer containing the ACPI @@ -222,11 +248,9 @@ unlock_and_exit: * to ensure that the table is not deleted or unmapped. * ******************************************************************************/ - acpi_status acpi_load_table(struct acpi_table_header *table) { acpi_status status; - struct acpi_table_desc table_desc; u32 table_index; ACPI_FUNCTION_TRACE(acpi_load_table); @@ -237,14 +261,6 @@ acpi_status acpi_load_table(struct acpi_table_header *table) return_ACPI_STATUS(AE_BAD_PARAMETER); } - /* Init local table descriptor */ - - ACPI_MEMSET(&table_desc, 0, sizeof(struct acpi_table_desc)); - table_desc.address = ACPI_PTR_TO_PHYSADDR(table); - table_desc.pointer = table; - table_desc.length = table->length; - table_desc.flags = ACPI_TABLE_ORIGIN_UNKNOWN; - /* Must acquire the interpreter lock during this operation */ status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER); @@ -255,7 +271,24 @@ acpi_status acpi_load_table(struct acpi_table_header *table) /* Install the table and load it into the namespace */ ACPI_INFO((AE_INFO, "Host-directed Dynamic ACPI Table Load:")); - status = acpi_tb_add_table(&table_desc, &table_index); + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); + + status = acpi_tb_install_standard_table(ACPI_PTR_TO_PHYSADDR(table), + ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL, + TRUE, FALSE, &table_index); + + (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); + if (ACPI_FAILURE(status)) { + goto unlock_and_exit; + } + + /* + * Note: Now table is "INSTALLED", it must be validated before + * using. + */ + status = + acpi_tb_validate_table(&acpi_gbl_root_table_list. + tables[table_index]); if (ACPI_FAILURE(status)) { goto unlock_and_exit; } diff --git a/drivers/acpi/acpica/tbxfroot.c b/drivers/acpi/acpica/tbxfroot.c index e4e1468877c..65ab8fed3d5 100644 --- a/drivers/acpi/acpica/tbxfroot.c +++ b/drivers/acpi/acpica/tbxfroot.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utaddress.c b/drivers/acpi/acpica/utaddress.c index e0a2e2779c2..a1acec9d2ef 100644 --- a/drivers/acpi/acpica/utaddress.c +++ b/drivers/acpi/acpica/utaddress.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -224,10 +224,11 @@ acpi_ut_check_address_range(acpi_adr_space_type space_id, while (range_info) { /* - * Check if the requested Address/Length overlaps this address_range. - * Four cases to consider: + * Check if the requested address/length overlaps this + * address range. There are four cases to consider: * - * 1) Input address/length is contained completely in the address range + * 1) Input address/length is contained completely in the + * address range * 2) Input address/length overlaps range at the range start * 3) Input address/length overlaps range at the range end * 4) Input address/length completely encompasses the range @@ -244,11 +245,17 @@ acpi_ut_check_address_range(acpi_adr_space_type space_id, region_node); ACPI_WARNING((AE_INFO, - "0x%p-0x%p %s conflicts with Region %s %d", + "%s range 0x%p-0x%p conflicts with OpRegion 0x%p-0x%p (%s)", + acpi_ut_get_region_name(space_id), ACPI_CAST_PTR(void, address), ACPI_CAST_PTR(void, end_address), - acpi_ut_get_region_name(space_id), - pathname, overlap_count)); + ACPI_CAST_PTR(void, + range_info-> + start_address), + ACPI_CAST_PTR(void, + range_info-> + end_address), + pathname)); ACPI_FREE(pathname); } } diff --git a/drivers/acpi/acpica/utalloc.c b/drivers/acpi/acpica/utalloc.c index 814267f5271..efac83c606d 100644 --- a/drivers/acpi/acpica/utalloc.c +++ b/drivers/acpi/acpica/utalloc.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -302,9 +302,13 @@ acpi_ut_initialize_buffer(struct acpi_buffer * buffer, return (AE_BUFFER_OVERFLOW); case ACPI_ALLOCATE_BUFFER: - - /* Allocate a new buffer */ - + /* + * Allocate a new buffer. We directectly call acpi_os_allocate here to + * purposefully bypass the (optionally enabled) internal allocation + * tracking mechanism since we only want to track internal + * allocations. Note: The caller should use acpi_os_free to free this + * buffer created via ACPI_ALLOCATE_BUFFER. + */ buffer->pointer = acpi_os_allocate(required_length); break; diff --git a/drivers/acpi/acpica/utbuffer.c b/drivers/acpi/acpica/utbuffer.c index 11fde93be12..3c169974065 100644 --- a/drivers/acpi/acpica/utbuffer.c +++ b/drivers/acpi/acpica/utbuffer.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utcache.c b/drivers/acpi/acpica/utcache.c index 366bfec4b77..78fde0aac48 100644 --- a/drivers/acpi/acpica/utcache.c +++ b/drivers/acpi/acpica/utcache.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -248,12 +248,12 @@ void *acpi_os_acquire_object(struct acpi_memory_list *cache) ACPI_FUNCTION_NAME(os_acquire_object); if (!cache) { - return (NULL); + return_PTR(NULL); } status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES); if (ACPI_FAILURE(status)) { - return (NULL); + return_PTR(NULL); } ACPI_MEM_TRACKING(cache->requests++); @@ -276,7 +276,7 @@ void *acpi_os_acquire_object(struct acpi_memory_list *cache) status = acpi_ut_release_mutex(ACPI_MTX_CACHES); if (ACPI_FAILURE(status)) { - return (NULL); + return_PTR(NULL); } /* Clear (zero) the previously used Object */ @@ -299,15 +299,15 @@ void *acpi_os_acquire_object(struct acpi_memory_list *cache) status = acpi_ut_release_mutex(ACPI_MTX_CACHES); if (ACPI_FAILURE(status)) { - return (NULL); + return_PTR(NULL); } object = ACPI_ALLOCATE_ZEROED(cache->object_size); if (!object) { - return (NULL); + return_PTR(NULL); } } - return (object); + return_PTR(object); } #endif /* ACPI_USE_LOCAL_CACHE */ diff --git a/drivers/acpi/acpica/utcopy.c b/drivers/acpi/acpica/utcopy.c index edff4e653d9..270c16464dd 100644 --- a/drivers/acpi/acpica/utcopy.c +++ b/drivers/acpi/acpica/utcopy.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -535,10 +535,10 @@ acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object, case ACPI_TYPE_LOCAL_REFERENCE: - /* TBD: should validate incoming handle */ + /* An incoming reference is defined to be a namespace node */ - internal_object->reference.class = ACPI_REFCLASS_NAME; - internal_object->reference.node = + internal_object->reference.class = ACPI_REFCLASS_REFOF; + internal_object->reference.object = external_object->reference.handle; break; diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c index 03ae8affe48..21a20ac5b1e 100644 --- a/drivers/acpi/acpica/utdebug.c +++ b/drivers/acpi/acpica/utdebug.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -194,9 +194,9 @@ acpi_debug_print(u32 requested_debug_level, */ acpi_os_printf("%9s-%04ld ", module_name, line_number); -#ifdef ACPI_EXEC_APP +#ifdef ACPI_APPLICATION /* - * For acpi_exec only, emit the thread ID and nesting level. + * For acpi_exec/iASL only, emit the thread ID and nesting level. * Note: nesting level is really only useful during a single-thread * execution. Otherwise, multiple threads will keep resetting the * level. diff --git a/drivers/acpi/acpica/utdecode.c b/drivers/acpi/acpica/utdecode.c index b3f31dd89a4..90ec37c473c 100644 --- a/drivers/acpi/acpica/utdecode.c +++ b/drivers/acpi/acpica/utdecode.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -462,7 +462,7 @@ char *acpi_ut_get_mutex_name(u32 mutex_id) /* Names for Notify() values, used for debug output */ -static const char *acpi_gbl_notify_value_names[ACPI_NOTIFY_MAX + 1] = { +static const char *acpi_gbl_generic_notify[ACPI_NOTIFY_MAX + 1] = { /* 00 */ "Bus Check", /* 01 */ "Device Check", /* 02 */ "Device Wake", @@ -473,23 +473,75 @@ static const char *acpi_gbl_notify_value_names[ACPI_NOTIFY_MAX + 1] = { /* 07 */ "Power Fault", /* 08 */ "Capabilities Check", /* 09 */ "Device PLD Check", - /* 10 */ "Reserved", - /* 11 */ "System Locality Update", - /* 12 */ "Shutdown Request" + /* 0A */ "Reserved", + /* 0B */ "System Locality Update", + /* 0C */ "Shutdown Request" }; -const char *acpi_ut_get_notify_name(u32 notify_value) +static const char *acpi_gbl_device_notify[4] = { + /* 80 */ "Status Change", + /* 81 */ "Information Change", + /* 82 */ "Device-Specific Change", + /* 83 */ "Device-Specific Change" +}; + +static const char *acpi_gbl_processor_notify[4] = { + /* 80 */ "Performance Capability Change", + /* 81 */ "C-State Change", + /* 82 */ "Throttling Capability Change", + /* 83 */ "Device-Specific Change" +}; + +static const char *acpi_gbl_thermal_notify[4] = { + /* 80 */ "Thermal Status Change", + /* 81 */ "Thermal Trip Point Change", + /* 82 */ "Thermal Device List Change", + /* 83 */ "Thermal Relationship Change" +}; + +const char *acpi_ut_get_notify_name(u32 notify_value, acpi_object_type type) { + /* 00 - 0C are common to all object types */ + if (notify_value <= ACPI_NOTIFY_MAX) { - return (acpi_gbl_notify_value_names[notify_value]); - } else if (notify_value <= ACPI_MAX_SYS_NOTIFY) { + return (acpi_gbl_generic_notify[notify_value]); + } + + /* 0D - 7F are reserved */ + + if (notify_value <= ACPI_MAX_SYS_NOTIFY) { return ("Reserved"); - } else if (notify_value <= ACPI_MAX_DEVICE_SPECIFIC_NOTIFY) { - return ("Device Specific"); - } else { - return ("Hardware Specific"); } + + /* 80 - 83 are per-object-type */ + + if (notify_value <= 0x83) { + switch (type) { + case ACPI_TYPE_ANY: + case ACPI_TYPE_DEVICE: + return (acpi_gbl_device_notify[notify_value - 0x80]); + + case ACPI_TYPE_PROCESSOR: + return (acpi_gbl_processor_notify[notify_value - 0x80]); + + case ACPI_TYPE_THERMAL: + return (acpi_gbl_thermal_notify[notify_value - 0x80]); + + default: + return ("Target object type does not support notifies"); + } + } + + /* 84 - BF are device-specific */ + + if (notify_value <= ACPI_MAX_DEVICE_SPECIFIC_NOTIFY) { + return ("Device-Specific"); + } + + /* C0 and above are hardware-specific */ + + return ("Hardware-Specific"); } #endif diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c index c07d2227ea4..a3516de213f 100644 --- a/drivers/acpi/acpica/utdelete.c +++ b/drivers/acpi/acpica/utdelete.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -75,6 +75,7 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object) union acpi_operand_object *handler_desc; union acpi_operand_object *second_desc; union acpi_operand_object *next_desc; + union acpi_operand_object *start_desc; union acpi_operand_object **last_obj_ptr; ACPI_FUNCTION_TRACE_PTR(ut_delete_internal_obj, object); @@ -235,10 +236,11 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object) if (handler_desc) { next_desc = handler_desc->address_space.region_list; + start_desc = next_desc; last_obj_ptr = &handler_desc->address_space.region_list; - /* Remove the region object from the handler's list */ + /* Remove the region object from the handler list */ while (next_desc) { if (next_desc == object) { @@ -247,10 +249,19 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object) break; } - /* Walk the linked list of handler */ + /* Walk the linked list of handlers */ last_obj_ptr = &next_desc->region.next; next_desc = next_desc->region.next; + + /* Prevent infinite loop if list is corrupted */ + + if (next_desc == start_desc) { + ACPI_ERROR((AE_INFO, + "Circular region list in address handler object %p", + handler_desc)); + return_VOID; + } } if (handler_desc->address_space.handler_flags & diff --git a/drivers/acpi/acpica/uterror.c b/drivers/acpi/acpica/uterror.c index 154fdcaa583..8e544d4688c 100644 --- a/drivers/acpi/acpica/uterror.c +++ b/drivers/acpi/acpica/uterror.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/uteval.c b/drivers/acpi/acpica/uteval.c index 16fb90506db..8fed1482d22 100644 --- a/drivers/acpi/acpica/uteval.c +++ b/drivers/acpi/acpica/uteval.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utexcep.c b/drivers/acpi/acpica/utexcep.c index 3cf7b597edb..0403dcaabaf 100644 --- a/drivers/acpi/acpica/utexcep.c +++ b/drivers/acpi/acpica/utexcep.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c index 81f9a958445..d69be3cb3fa 100644 --- a/drivers/acpi/acpica/utglobal.c +++ b/drivers/acpi/acpica/utglobal.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -55,32 +55,7 @@ ACPI_MODULE_NAME("utglobal") * Static global variable initialization. * ******************************************************************************/ -/* - * We want the debug switches statically initialized so they - * are already set when the debugger is entered. - */ -/* Debug switch - level and trace mask */ -u32 acpi_dbg_level = ACPI_DEBUG_DEFAULT; - -/* Debug switch - layer (component) mask */ - -u32 acpi_dbg_layer = 0; -u32 acpi_gbl_nesting_level = 0; - -/* Debugger globals */ - -u8 acpi_gbl_db_terminate_threads = FALSE; -u8 acpi_gbl_abort_method = FALSE; -u8 acpi_gbl_method_executing = FALSE; - -/* System flags */ - -u32 acpi_gbl_startup_flags = 0; - -/* System starts uninitialized */ - -u8 acpi_gbl_shutdown = TRUE; - +/* Various state name strings */ const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = { "\\_S0_", "\\_S1_", @@ -335,14 +310,12 @@ acpi_status acpi_ut_init_globals(void) acpi_gbl_DSDT = NULL; acpi_gbl_cm_single_step = FALSE; - acpi_gbl_db_terminate_threads = FALSE; acpi_gbl_shutdown = FALSE; acpi_gbl_ns_lookup_count = 0; acpi_gbl_ps_find_count = 0; acpi_gbl_acpi_hardware_present = TRUE; acpi_gbl_last_owner_id_index = 0; acpi_gbl_next_owner_id_offset = 0; - acpi_gbl_trace_method_name = 0; acpi_gbl_trace_dbg_level = 0; acpi_gbl_trace_dbg_layer = 0; acpi_gbl_debugger_configuration = DEBUGGER_THREADING; @@ -382,17 +355,15 @@ acpi_status acpi_ut_init_globals(void) acpi_gbl_disable_mem_tracking = FALSE; #endif + ACPI_DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = FALSE); + return_ACPI_STATUS(AE_OK); } /* Public globals */ ACPI_EXPORT_SYMBOL(acpi_gbl_FADT) - ACPI_EXPORT_SYMBOL(acpi_dbg_level) - ACPI_EXPORT_SYMBOL(acpi_dbg_layer) - ACPI_EXPORT_SYMBOL(acpi_gpe_count) - ACPI_EXPORT_SYMBOL(acpi_current_gpe_count) diff --git a/drivers/acpi/acpica/utids.c b/drivers/acpi/acpica/utids.c index bfca7b4b673..4b12880e5b1 100644 --- a/drivers/acpi/acpica/utids.c +++ b/drivers/acpi/acpica/utids.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utinit.c b/drivers/acpi/acpica/utinit.c index c5d1ac44c07..5f56fc49021 100644 --- a/drivers/acpi/acpica/utinit.c +++ b/drivers/acpi/acpica/utinit.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utlock.c b/drivers/acpi/acpica/utlock.c index 5c26ad42034..dc6e96547f1 100644 --- a/drivers/acpi/acpica/utlock.c +++ b/drivers/acpi/acpica/utlock.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utmath.c b/drivers/acpi/acpica/utmath.c index 909fe66e193..d44dee6ee10 100644 --- a/drivers/acpi/acpica/utmath.c +++ b/drivers/acpi/acpica/utmath.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c index 02f9101b65e..2e2bb14e109 100644 --- a/drivers/acpi/acpica/utmisc.c +++ b/drivers/acpi/acpica/utmisc.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utmutex.c b/drivers/acpi/acpica/utmutex.c index 08c32324558..82717fff9ff 100644 --- a/drivers/acpi/acpica/utmutex.c +++ b/drivers/acpi/acpica/utmutex.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utobject.c b/drivers/acpi/acpica/utobject.c index 517af700399..dfa9009bfc8 100644 --- a/drivers/acpi/acpica/utobject.c +++ b/drivers/acpi/acpica/utobject.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c index 8856bd37bc7..685766fc6ca 100644 --- a/drivers/acpi/acpica/utosi.c +++ b/drivers/acpi/acpica/utosi.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -47,6 +47,31 @@ #define _COMPONENT ACPI_UTILITIES ACPI_MODULE_NAME("utosi") +/****************************************************************************** + * + * ACPICA policy for new _OSI strings: + * + * It is the stated policy of ACPICA that new _OSI strings will be integrated + * into this module as soon as possible after they are defined. It is strongly + * recommended that all ACPICA hosts mirror this policy and integrate any + * changes to this module as soon as possible. There are several historical + * reasons behind this policy: + * + * 1) New BIOSs tend to test only the case where the host responds TRUE to + * the latest version of Windows, which would respond to the latest/newest + * _OSI string. Not responding TRUE to the latest version of Windows will + * risk executing untested code paths throughout the DSDT and SSDTs. + * + * 2) If a new _OSI string is recognized only after a significant delay, this + * has the potential to cause problems on existing working machines because + * of the possibility that a new and different path through the ASL code + * will be executed. + * + * 3) New _OSI strings are tending to come out about once per year. A delay + * in recognizing a new string for a significant amount of time risks the + * release of another string which only compounds the initial problem. + * + *****************************************************************************/ /* * Strings supported by the _OSI predefined control method (which is * implemented internally within this module.) @@ -74,6 +99,7 @@ static struct acpi_interface_info acpi_default_supported_interfaces[] = { {"Windows 2006 SP2", NULL, 0, ACPI_OSI_WIN_VISTA_SP2}, /* Windows Vista SP2 - Added 09/2010 */ {"Windows 2009", NULL, 0, ACPI_OSI_WIN_7}, /* Windows 7 and Server 2008 R2 - Added 09/2009 */ {"Windows 2012", NULL, 0, ACPI_OSI_WIN_8}, /* Windows 8 and Server 2012 - Added 08/2012 */ + {"Windows 2013", NULL, 0, ACPI_OSI_WIN_8}, /* Windows 8.1 and Server 2012 R2 - Added 01/2014 */ /* Feature Group Strings */ diff --git a/drivers/acpi/acpica/utownerid.c b/drivers/acpi/acpica/utownerid.c index eb3aca76136..36bec57ebd2 100644 --- a/drivers/acpi/acpica/utownerid.c +++ b/drivers/acpi/acpica/utownerid.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utpredef.c b/drivers/acpi/acpica/utpredef.c index 2b1ce4cd320..db30caff130 100644 --- a/drivers/acpi/acpica/utpredef.c +++ b/drivers/acpi/acpica/utpredef.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utresrc.c b/drivers/acpi/acpica/utresrc.c index 2c2accb9e53..14cb6c0c8be 100644 --- a/drivers/acpi/acpica/utresrc.c +++ b/drivers/acpi/acpica/utresrc.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -47,7 +47,8 @@ #define _COMPONENT ACPI_UTILITIES ACPI_MODULE_NAME("utresrc") -#if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUGGER) + +#if defined(ACPI_DEBUG_OUTPUT) || defined (ACPI_DISASSEMBLER) || defined (ACPI_DEBUGGER) /* * Strings used to decode resource descriptors. * Used by both the disassembler and the debugger resource dump routines diff --git a/drivers/acpi/acpica/utstate.c b/drivers/acpi/acpica/utstate.c index 03c4c2febd8..1cc97a752c1 100644 --- a/drivers/acpi/acpica/utstate.c +++ b/drivers/acpi/acpica/utstate.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utstring.c b/drivers/acpi/acpica/utstring.c index 45c0eb26b33..6dc54b3c28b 100644 --- a/drivers/acpi/acpica/utstring.c +++ b/drivers/acpi/acpica/utstring.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -353,7 +353,7 @@ void acpi_ut_print_string(char *string, u16 max_length) } acpi_os_printf("\""); - for (i = 0; string[i] && (i < max_length); i++) { + for (i = 0; (i < max_length) && string[i]; i++) { /* Escape sequences */ diff --git a/drivers/acpi/acpica/uttrack.c b/drivers/acpi/acpica/uttrack.c index c0027773ccc..7d0ee969d78 100644 --- a/drivers/acpi/acpica/uttrack.c +++ b/drivers/acpi/acpica/uttrack.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -276,7 +276,8 @@ acpi_ut_free_and_track(void *allocation, } acpi_os_free(debug_block); - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "%p freed\n", allocation)); + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "%p freed (block %p)\n", + allocation, debug_block)); return_VOID; } diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c index be322c83643..502a8492dc8 100644 --- a/drivers/acpi/acpica/utxface.c +++ b/drivers/acpi/acpica/utxface.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utxferror.c b/drivers/acpi/acpica/utxferror.c index f7edb88f605..88ef77f3cf8 100644 --- a/drivers/acpi/acpica/utxferror.c +++ b/drivers/acpi/acpica/utxferror.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -53,6 +53,7 @@ ACPI_MODULE_NAME("utxferror") * This module is used for the in-kernel ACPICA as well as the ACPICA * tools/applications. */ +#ifndef ACPI_NO_ERROR_MESSAGES /* Entire module */ /******************************************************************************* * * FUNCTION: acpi_error @@ -249,3 +250,4 @@ acpi_bios_warning(const char *module_name, } ACPI_EXPORT_SYMBOL(acpi_bios_warning) +#endif /* ACPI_NO_ERROR_MESSAGES */ diff --git a/drivers/acpi/acpica/utxfinit.c b/drivers/acpi/acpica/utxfinit.c index 75efea0539c..13380d81846 100644 --- a/drivers/acpi/acpica/utxfinit.c +++ b/drivers/acpi/acpica/utxfinit.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -122,8 +122,16 @@ acpi_status __init acpi_initialize_subsystem(void) /* If configured, initialize the AML debugger */ - ACPI_DEBUGGER_EXEC(status = acpi_db_initialize()); - return_ACPI_STATUS(status); +#ifdef ACPI_DEBUGGER + status = acpi_db_initialize(); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "During Debugger initialization")); + return_ACPI_STATUS(status); + } +#endif + + return_ACPI_STATUS(AE_OK); } ACPI_EXPORT_SYMBOL_INIT(acpi_initialize_subsystem) diff --git a/drivers/acpi/acpica/utxfmutex.c b/drivers/acpi/acpica/utxfmutex.c index 312299721ba..2a0f9e04d3a 100644 --- a/drivers/acpi/acpica/utxfmutex.c +++ b/drivers/acpi/acpica/utxfmutex.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/apei/Kconfig b/drivers/acpi/apei/Kconfig index 3650b218322..c4dac715096 100644 --- a/drivers/acpi/apei/Kconfig +++ b/drivers/acpi/apei/Kconfig @@ -12,7 +12,7 @@ config ACPI_APEI config ACPI_APEI_GHES bool "APEI Generic Hardware Error Source" - depends on ACPI_APEI && X86 + depends on ACPI_APEI select ACPI_HED select IRQ_WORK select GENERIC_ALLOCATOR diff --git a/drivers/acpi/apei/apei-base.c b/drivers/acpi/apei/apei-base.c index e55584a072c..8678dfe5366 100644 --- a/drivers/acpi/apei/apei-base.c +++ b/drivers/acpi/apei/apei-base.c @@ -34,7 +34,6 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/acpi.h> -#include <linux/acpi_io.h> #include <linux/slab.h> #include <linux/io.h> #include <linux/kref.h> diff --git a/drivers/acpi/apei/apei-internal.h b/drivers/acpi/apei/apei-internal.h index 21ba34a7388..e5bcd919d4e 100644 --- a/drivers/acpi/apei/apei-internal.h +++ b/drivers/acpi/apei/apei-internal.h @@ -8,7 +8,6 @@ #include <linux/cper.h> #include <linux/acpi.h> -#include <linux/acpi_io.h> struct apei_exec_context; diff --git a/drivers/acpi/apei/einj.c b/drivers/acpi/apei/einj.c index 7dcc8a824aa..a095d4f858d 100644 --- a/drivers/acpi/apei/einj.c +++ b/drivers/acpi/apei/einj.c @@ -33,7 +33,6 @@ #include <linux/nmi.h> #include <linux/delay.h> #include <linux/mm.h> -#include <acpi/acpi.h> #include <asm/unaligned.h> #include "apei-internal.h" @@ -203,7 +202,7 @@ static void check_vendor_extension(u64 paddr, if (!offset) return; - v = acpi_os_map_memory(paddr + offset, sizeof(*v)); + v = acpi_os_map_iomem(paddr + offset, sizeof(*v)); if (!v) return; sbdf = v->pcie_sbdf; @@ -211,7 +210,7 @@ static void check_vendor_extension(u64 paddr, sbdf >> 24, (sbdf >> 16) & 0xff, (sbdf >> 11) & 0x1f, (sbdf >> 8) & 0x7, v->vendor_id, v->device_id, v->rev_id); - acpi_os_unmap_memory(v, sizeof(*v)); + acpi_os_unmap_iomem(v, sizeof(*v)); } static void *einj_get_parameter_address(void) @@ -237,7 +236,7 @@ static void *einj_get_parameter_address(void) if (pa_v5) { struct set_error_type_with_address *v5param; - v5param = acpi_os_map_memory(pa_v5, sizeof(*v5param)); + v5param = acpi_os_map_iomem(pa_v5, sizeof(*v5param)); if (v5param) { acpi5 = 1; check_vendor_extension(pa_v5, v5param); @@ -247,11 +246,11 @@ static void *einj_get_parameter_address(void) if (param_extension && pa_v4) { struct einj_parameter *v4param; - v4param = acpi_os_map_memory(pa_v4, sizeof(*v4param)); + v4param = acpi_os_map_iomem(pa_v4, sizeof(*v4param)); if (!v4param) return NULL; if (v4param->reserved1 || v4param->reserved2) { - acpi_os_unmap_memory(v4param, sizeof(*v4param)); + acpi_os_unmap_iomem(v4param, sizeof(*v4param)); return NULL; } return v4param; @@ -795,7 +794,7 @@ err_unmap: sizeof(struct set_error_type_with_address) : sizeof(struct einj_parameter); - acpi_os_unmap_memory(einj_param, size); + acpi_os_unmap_iomem(einj_param, size); } apei_exec_post_unmap_gars(&ctx); err_release: @@ -817,7 +816,7 @@ static void __exit einj_exit(void) sizeof(struct set_error_type_with_address) : sizeof(struct einj_parameter); - acpi_os_unmap_memory(einj_param, size); + acpi_os_unmap_iomem(einj_param, size); } einj_exec_ctx_init(&ctx); apei_exec_post_unmap_gars(&ctx); diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index 46766ef7ef5..dab7cb7349d 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -33,7 +33,6 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/acpi.h> -#include <linux/acpi_io.h> #include <linux/io.h> #include <linux/interrupt.h> #include <linux/timer.h> diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 5876a49dfd3..130f513e08c 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -32,27 +32,36 @@ #include <linux/jiffies.h> #include <linux/async.h> #include <linux/dmi.h> +#include <linux/delay.h> #include <linux/slab.h> #include <linux/suspend.h> +#include <linux/delay.h> #include <asm/unaligned.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#ifdef CONFIG_ACPI_PROCFS_POWER +#include <linux/proc_fs.h> +#include <linux/seq_file.h> +#include <asm/uaccess.h> +#endif + +#include <linux/acpi.h> #include <linux/power_supply.h> +#include "battery.h" + #define PREFIX "ACPI: " #define ACPI_BATTERY_VALUE_UNKNOWN 0xFFFFFFFF -#define ACPI_BATTERY_CLASS "battery" #define ACPI_BATTERY_DEVICE_NAME "Battery" -#define ACPI_BATTERY_NOTIFY_STATUS 0x80 -#define ACPI_BATTERY_NOTIFY_INFO 0x81 -#define ACPI_BATTERY_NOTIFY_THRESHOLD 0x82 /* Battery power unit: 0 means mW, 1 means mA */ #define ACPI_BATTERY_POWER_UNIT_MA 1 +#define ACPI_BATTERY_STATE_DISCHARGING 0x1 +#define ACPI_BATTERY_STATE_CHARGING 0x2 +#define ACPI_BATTERY_STATE_CRITICAL 0x4 + #define _COMPONENT ACPI_BATTERY_COMPONENT ACPI_MODULE_NAME("battery"); @@ -63,10 +72,24 @@ MODULE_DESCRIPTION("ACPI Battery Driver"); MODULE_LICENSE("GPL"); static int battery_bix_broken_package; +static int battery_notification_delay_ms; static unsigned int cache_time = 1000; module_param(cache_time, uint, 0644); MODULE_PARM_DESC(cache_time, "cache time in milliseconds"); +#ifdef CONFIG_ACPI_PROCFS_POWER +extern struct proc_dir_entry *acpi_lock_battery_dir(void); +extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir); + +enum acpi_battery_files { + info_tag = 0, + state_tag, + alarm_tag, + ACPI_BATTERY_NUMFILES, +}; + +#endif + static const struct acpi_device_id battery_device_ids[] = { {"PNP0C0A", 0}, {"", 0}, @@ -153,7 +176,7 @@ static int acpi_battery_get_state(struct acpi_battery *battery); static int acpi_battery_is_charged(struct acpi_battery *battery) { - /* either charging or discharging */ + /* charging, discharging or critical low */ if (battery->state != 0) return 0; @@ -188,9 +211,9 @@ static int acpi_battery_get_property(struct power_supply *psy, return -ENODEV; switch (psp) { case POWER_SUPPLY_PROP_STATUS: - if (battery->state & 0x01) + if (battery->state & ACPI_BATTERY_STATE_DISCHARGING) val->intval = POWER_SUPPLY_STATUS_DISCHARGING; - else if (battery->state & 0x02) + else if (battery->state & ACPI_BATTERY_STATE_CHARGING) val->intval = POWER_SUPPLY_STATUS_CHARGING; else if (acpi_battery_is_charged(battery)) val->intval = POWER_SUPPLY_STATUS_FULL; @@ -253,6 +276,17 @@ static int acpi_battery_get_property(struct power_supply *psy, else val->intval = 0; break; + case POWER_SUPPLY_PROP_CAPACITY_LEVEL: + if (battery->state & ACPI_BATTERY_STATE_CRITICAL) + val->intval = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL; + else if (test_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags) && + (battery->capacity_now <= battery->alarm)) + val->intval = POWER_SUPPLY_CAPACITY_LEVEL_LOW; + else if (acpi_battery_is_charged(battery)) + val->intval = POWER_SUPPLY_CAPACITY_LEVEL_FULL; + else + val->intval = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL; + break; case POWER_SUPPLY_PROP_MODEL_NAME: val->strval = battery->model_number; break; @@ -280,6 +314,7 @@ static enum power_supply_property charge_battery_props[] = { POWER_SUPPLY_PROP_CHARGE_FULL, POWER_SUPPLY_PROP_CHARGE_NOW, POWER_SUPPLY_PROP_CAPACITY, + POWER_SUPPLY_PROP_CAPACITY_LEVEL, POWER_SUPPLY_PROP_MODEL_NAME, POWER_SUPPLY_PROP_MANUFACTURER, POWER_SUPPLY_PROP_SERIAL_NUMBER, @@ -297,11 +332,20 @@ static enum power_supply_property energy_battery_props[] = { POWER_SUPPLY_PROP_ENERGY_FULL, POWER_SUPPLY_PROP_ENERGY_NOW, POWER_SUPPLY_PROP_CAPACITY, + POWER_SUPPLY_PROP_CAPACITY_LEVEL, POWER_SUPPLY_PROP_MODEL_NAME, POWER_SUPPLY_PROP_MANUFACTURER, POWER_SUPPLY_PROP_SERIAL_NUMBER, }; +#ifdef CONFIG_ACPI_PROCFS_POWER +inline char *acpi_battery_units(struct acpi_battery *battery) +{ + return (battery->power_unit == ACPI_BATTERY_POWER_UNIT_MA) ? + "mA" : "mW"; +} +#endif + /* -------------------------------------------------------------------------- Battery Management -------------------------------------------------------------------------- */ @@ -491,6 +535,20 @@ static int acpi_battery_get_state(struct acpi_battery *battery) " invalid.\n"); } + /* + * When fully charged, some batteries wrongly report + * capacity_now = design_capacity instead of = full_charge_capacity + */ + if (battery->capacity_now > battery->full_charge_capacity + && battery->full_charge_capacity != ACPI_BATTERY_VALUE_UNKNOWN) { + battery->capacity_now = battery->full_charge_capacity; + if (battery->capacity_now != battery->design_capacity) + printk_once(KERN_WARNING FW_BUG + "battery: reported current charge level (%d) " + "is higher than reported maximum charge level (%d).\n", + battery->capacity_now, battery->full_charge_capacity); + } + if (test_bit(ACPI_BATTERY_QUIRK_PERCENTAGE_CAPACITY, &battery->flags) && battery->capacity_now >= 0 && battery->capacity_now <= 100) battery->capacity_now = (battery->capacity_now * @@ -550,7 +608,7 @@ static ssize_t acpi_battery_alarm_store(struct device *dev, { unsigned long x; struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev)); - if (sscanf(buf, "%ld\n", &x) == 1) + if (sscanf(buf, "%lu\n", &x) == 1) battery->alarm = x/1000; if (acpi_battery_present(battery)) acpi_battery_set_alarm(battery); @@ -581,7 +639,8 @@ static int sysfs_add_battery(struct acpi_battery *battery) battery->bat.type = POWER_SUPPLY_TYPE_BATTERY; battery->bat.get_property = acpi_battery_get_property; - result = power_supply_register(&battery->device->dev, &battery->bat); + result = power_supply_register_no_ws(&battery->device->dev, &battery->bat); + if (result) return result; return device_create_file(battery->bat.dev, &alarm_attr); @@ -672,7 +731,7 @@ static void acpi_battery_quirks(struct acpi_battery *battery) } } -static int acpi_battery_update(struct acpi_battery *battery) +static int acpi_battery_update(struct acpi_battery *battery, bool resume) { int result, old_present = acpi_battery_present(battery); result = acpi_battery_get_status(battery); @@ -683,6 +742,10 @@ static int acpi_battery_update(struct acpi_battery *battery) battery->update_time = 0; return 0; } + + if (resume) + return 0; + if (!battery->update_time || old_present != acpi_battery_present(battery)) { result = acpi_battery_get_info(battery); @@ -696,7 +759,19 @@ static int acpi_battery_update(struct acpi_battery *battery) return result; } result = acpi_battery_get_state(battery); + if (result) + return result; acpi_battery_quirks(battery); + + /* + * Wakeup the system if battery is critical low + * or lower than the alarm level + */ + if ((battery->state & ACPI_BATTERY_STATE_CRITICAL) || + (test_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags) && + (battery->capacity_now <= battery->alarm))) + pm_wakeup_event(&battery->device->dev, 0); + return result; } @@ -720,6 +795,282 @@ static void acpi_battery_refresh(struct acpi_battery *battery) } /* -------------------------------------------------------------------------- + FS Interface (/proc) + -------------------------------------------------------------------------- */ + +#ifdef CONFIG_ACPI_PROCFS_POWER +static struct proc_dir_entry *acpi_battery_dir; + +static int acpi_battery_print_info(struct seq_file *seq, int result) +{ + struct acpi_battery *battery = seq->private; + + if (result) + goto end; + + seq_printf(seq, "present: %s\n", + acpi_battery_present(battery) ? "yes" : "no"); + if (!acpi_battery_present(battery)) + goto end; + if (battery->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN) + seq_printf(seq, "design capacity: unknown\n"); + else + seq_printf(seq, "design capacity: %d %sh\n", + battery->design_capacity, + acpi_battery_units(battery)); + + if (battery->full_charge_capacity == ACPI_BATTERY_VALUE_UNKNOWN) + seq_printf(seq, "last full capacity: unknown\n"); + else + seq_printf(seq, "last full capacity: %d %sh\n", + battery->full_charge_capacity, + acpi_battery_units(battery)); + + seq_printf(seq, "battery technology: %srechargeable\n", + (!battery->technology)?"non-":""); + + if (battery->design_voltage == ACPI_BATTERY_VALUE_UNKNOWN) + seq_printf(seq, "design voltage: unknown\n"); + else + seq_printf(seq, "design voltage: %d mV\n", + battery->design_voltage); + seq_printf(seq, "design capacity warning: %d %sh\n", + battery->design_capacity_warning, + acpi_battery_units(battery)); + seq_printf(seq, "design capacity low: %d %sh\n", + battery->design_capacity_low, + acpi_battery_units(battery)); + seq_printf(seq, "cycle count: %i\n", battery->cycle_count); + seq_printf(seq, "capacity granularity 1: %d %sh\n", + battery->capacity_granularity_1, + acpi_battery_units(battery)); + seq_printf(seq, "capacity granularity 2: %d %sh\n", + battery->capacity_granularity_2, + acpi_battery_units(battery)); + seq_printf(seq, "model number: %s\n", battery->model_number); + seq_printf(seq, "serial number: %s\n", battery->serial_number); + seq_printf(seq, "battery type: %s\n", battery->type); + seq_printf(seq, "OEM info: %s\n", battery->oem_info); + end: + if (result) + seq_printf(seq, "ERROR: Unable to read battery info\n"); + return result; +} + +static int acpi_battery_print_state(struct seq_file *seq, int result) +{ + struct acpi_battery *battery = seq->private; + + if (result) + goto end; + + seq_printf(seq, "present: %s\n", + acpi_battery_present(battery) ? "yes" : "no"); + if (!acpi_battery_present(battery)) + goto end; + + seq_printf(seq, "capacity state: %s\n", + (battery->state & 0x04) ? "critical" : "ok"); + if ((battery->state & 0x01) && (battery->state & 0x02)) + seq_printf(seq, + "charging state: charging/discharging\n"); + else if (battery->state & 0x01) + seq_printf(seq, "charging state: discharging\n"); + else if (battery->state & 0x02) + seq_printf(seq, "charging state: charging\n"); + else + seq_printf(seq, "charging state: charged\n"); + + if (battery->rate_now == ACPI_BATTERY_VALUE_UNKNOWN) + seq_printf(seq, "present rate: unknown\n"); + else + seq_printf(seq, "present rate: %d %s\n", + battery->rate_now, acpi_battery_units(battery)); + + if (battery->capacity_now == ACPI_BATTERY_VALUE_UNKNOWN) + seq_printf(seq, "remaining capacity: unknown\n"); + else + seq_printf(seq, "remaining capacity: %d %sh\n", + battery->capacity_now, acpi_battery_units(battery)); + if (battery->voltage_now == ACPI_BATTERY_VALUE_UNKNOWN) + seq_printf(seq, "present voltage: unknown\n"); + else + seq_printf(seq, "present voltage: %d mV\n", + battery->voltage_now); + end: + if (result) + seq_printf(seq, "ERROR: Unable to read battery state\n"); + + return result; +} + +static int acpi_battery_print_alarm(struct seq_file *seq, int result) +{ + struct acpi_battery *battery = seq->private; + + if (result) + goto end; + + if (!acpi_battery_present(battery)) { + seq_printf(seq, "present: no\n"); + goto end; + } + seq_printf(seq, "alarm: "); + if (!battery->alarm) + seq_printf(seq, "unsupported\n"); + else + seq_printf(seq, "%u %sh\n", battery->alarm, + acpi_battery_units(battery)); + end: + if (result) + seq_printf(seq, "ERROR: Unable to read battery alarm\n"); + return result; +} + +static ssize_t acpi_battery_write_alarm(struct file *file, + const char __user * buffer, + size_t count, loff_t * ppos) +{ + int result = 0; + char alarm_string[12] = { '\0' }; + struct seq_file *m = file->private_data; + struct acpi_battery *battery = m->private; + + if (!battery || (count > sizeof(alarm_string) - 1)) + return -EINVAL; + if (!acpi_battery_present(battery)) { + result = -ENODEV; + goto end; + } + if (copy_from_user(alarm_string, buffer, count)) { + result = -EFAULT; + goto end; + } + alarm_string[count] = '\0'; + if (kstrtoint(alarm_string, 0, &battery->alarm)) { + result = -EINVAL; + goto end; + } + result = acpi_battery_set_alarm(battery); + end: + if (!result) + return count; + return result; +} + +typedef int(*print_func)(struct seq_file *seq, int result); + +static print_func acpi_print_funcs[ACPI_BATTERY_NUMFILES] = { + acpi_battery_print_info, + acpi_battery_print_state, + acpi_battery_print_alarm, +}; + +static int acpi_battery_read(int fid, struct seq_file *seq) +{ + struct acpi_battery *battery = seq->private; + int result = acpi_battery_update(battery, false); + return acpi_print_funcs[fid](seq, result); +} + +#define DECLARE_FILE_FUNCTIONS(_name) \ +static int acpi_battery_read_##_name(struct seq_file *seq, void *offset) \ +{ \ + return acpi_battery_read(_name##_tag, seq); \ +} \ +static int acpi_battery_##_name##_open_fs(struct inode *inode, struct file *file) \ +{ \ + return single_open(file, acpi_battery_read_##_name, PDE_DATA(inode)); \ +} + +DECLARE_FILE_FUNCTIONS(info); +DECLARE_FILE_FUNCTIONS(state); +DECLARE_FILE_FUNCTIONS(alarm); + +#undef DECLARE_FILE_FUNCTIONS + +#define FILE_DESCRIPTION_RO(_name) \ + { \ + .name = __stringify(_name), \ + .mode = S_IRUGO, \ + .ops = { \ + .open = acpi_battery_##_name##_open_fs, \ + .read = seq_read, \ + .llseek = seq_lseek, \ + .release = single_release, \ + .owner = THIS_MODULE, \ + }, \ + } + +#define FILE_DESCRIPTION_RW(_name) \ + { \ + .name = __stringify(_name), \ + .mode = S_IFREG | S_IRUGO | S_IWUSR, \ + .ops = { \ + .open = acpi_battery_##_name##_open_fs, \ + .read = seq_read, \ + .llseek = seq_lseek, \ + .write = acpi_battery_write_##_name, \ + .release = single_release, \ + .owner = THIS_MODULE, \ + }, \ + } + +static const struct battery_file { + struct file_operations ops; + umode_t mode; + const char *name; +} acpi_battery_file[] = { + FILE_DESCRIPTION_RO(info), + FILE_DESCRIPTION_RO(state), + FILE_DESCRIPTION_RW(alarm), +}; + +#undef FILE_DESCRIPTION_RO +#undef FILE_DESCRIPTION_RW + +static int acpi_battery_add_fs(struct acpi_device *device) +{ + struct proc_dir_entry *entry = NULL; + int i; + + printk(KERN_WARNING PREFIX "Deprecated procfs I/F for battery is loaded," + " please retry with CONFIG_ACPI_PROCFS_POWER cleared\n"); + if (!acpi_device_dir(device)) { + acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), + acpi_battery_dir); + if (!acpi_device_dir(device)) + return -ENODEV; + } + + for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i) { + entry = proc_create_data(acpi_battery_file[i].name, + acpi_battery_file[i].mode, + acpi_device_dir(device), + &acpi_battery_file[i].ops, + acpi_driver_data(device)); + if (!entry) + return -ENODEV; + } + return 0; +} + +static void acpi_battery_remove_fs(struct acpi_device *device) +{ + int i; + if (!acpi_device_dir(device)) + return; + for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i) + remove_proc_entry(acpi_battery_file[i].name, + acpi_device_dir(device)); + + remove_proc_entry(acpi_device_bid(device), acpi_battery_dir); + acpi_device_dir(device) = NULL; +} + +#endif + +/* -------------------------------------------------------------------------- Driver Interface -------------------------------------------------------------------------- */ @@ -731,12 +1082,21 @@ static void acpi_battery_notify(struct acpi_device *device, u32 event) if (!battery) return; old = battery->bat.dev; + /* + * On Acer Aspire V5-573G notifications are sometimes triggered too + * early. For example, when AC is unplugged and notification is + * triggered, battery state is still reported as "Full", and changes to + * "Discharging" only after short delay, without any notification. + */ + if (battery_notification_delay_ms > 0) + msleep(battery_notification_delay_ms); if (event == ACPI_BATTERY_NOTIFY_INFO) acpi_battery_refresh(battery); - acpi_battery_update(battery); + acpi_battery_update(battery, false); acpi_bus_generate_netlink_event(device->pnp.device_class, dev_name(&device->dev), event, acpi_battery_present(battery)); + acpi_notifier_call_chain(device, event, acpi_battery_present(battery)); /* acpi_battery_update could remove power_supply object */ if (old && battery->bat.dev) power_supply_changed(&battery->bat); @@ -747,30 +1107,87 @@ static int battery_notify(struct notifier_block *nb, { struct acpi_battery *battery = container_of(nb, struct acpi_battery, pm_nb); + int result; + switch (mode) { case PM_POST_HIBERNATION: case PM_POST_SUSPEND: - if (battery->bat.dev) { - sysfs_remove_battery(battery); - sysfs_add_battery(battery); - } + if (!acpi_battery_present(battery)) + return 0; + + if (!battery->bat.dev) { + result = acpi_battery_get_info(battery); + if (result) + return result; + + result = sysfs_add_battery(battery); + if (result) + return result; + } else + acpi_battery_refresh(battery); + + acpi_battery_init_alarm(battery); + acpi_battery_get_state(battery); break; } return 0; } +static int battery_bix_broken_package_quirk(const struct dmi_system_id *d) +{ + battery_bix_broken_package = 1; + return 0; +} + +static int battery_notification_delay_quirk(const struct dmi_system_id *d) +{ + battery_notification_delay_ms = 1000; + return 0; +} + static struct dmi_system_id bat_dmi_table[] = { { + .callback = battery_bix_broken_package_quirk, .ident = "NEC LZ750/LS", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "NEC"), DMI_MATCH(DMI_PRODUCT_NAME, "PC-LZ750LS"), }, }, + { + .callback = battery_notification_delay_quirk, + .ident = "Acer Aspire V5-573G", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "Aspire V5-573G"), + }, + }, {}, }; +/* + * Some machines'(E,G Lenovo Z480) ECs are not stable + * during boot up and this causes battery driver fails to be + * probed due to failure of getting battery information + * from EC sometimes. After several retries, the operation + * may work. So add retry code here and 20ms sleep between + * every retries. + */ +static int acpi_battery_update_retry(struct acpi_battery *battery) +{ + int retry, ret; + + for (retry = 5; retry; retry--) { + ret = acpi_battery_update(battery, false); + if (!ret) + break; + + msleep(20); + } + return ret; +} + static int acpi_battery_add(struct acpi_device *device) { int result = 0; @@ -789,10 +1206,21 @@ static int acpi_battery_add(struct acpi_device *device) mutex_init(&battery->sysfs_lock); if (acpi_has_method(battery->device->handle, "_BIX")) set_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags); - result = acpi_battery_update(battery); + + result = acpi_battery_update_retry(battery); if (result) goto fail; +#ifdef CONFIG_ACPI_PROCFS_POWER + result = acpi_battery_add_fs(device); +#endif + if (result) { +#ifdef CONFIG_ACPI_PROCFS_POWER + acpi_battery_remove_fs(device); +#endif + goto fail; + } + printk(KERN_INFO PREFIX "%s Slot [%s] (battery %s)\n", ACPI_BATTERY_DEVICE_NAME, acpi_device_bid(device), device->status.battery_present ? "present" : "absent"); @@ -800,6 +1228,8 @@ static int acpi_battery_add(struct acpi_device *device) battery->pm_nb.notifier_call = battery_notify; register_pm_notifier(&battery->pm_nb); + device_init_wakeup(&device->dev, 1); + return result; fail: @@ -816,8 +1246,12 @@ static int acpi_battery_remove(struct acpi_device *device) if (!device || !acpi_driver_data(device)) return -EINVAL; + device_init_wakeup(&device->dev, 0); battery = acpi_driver_data(device); unregister_pm_notifier(&battery->pm_nb); +#ifdef CONFIG_ACPI_PROCFS_POWER + acpi_battery_remove_fs(device); +#endif sysfs_remove_battery(battery); mutex_destroy(&battery->lock); mutex_destroy(&battery->sysfs_lock); @@ -839,9 +1273,11 @@ static int acpi_battery_resume(struct device *dev) return -EINVAL; battery->update_time = 0; - acpi_battery_update(battery); + acpi_battery_update(battery, true); return 0; } +#else +#define acpi_battery_resume NULL #endif static SIMPLE_DEV_PM_OPS(acpi_battery_pm, NULL, acpi_battery_resume); @@ -864,9 +1300,20 @@ static void __init acpi_battery_init_async(void *unused, async_cookie_t cookie) if (acpi_disabled) return; - if (dmi_check_system(bat_dmi_table)) - battery_bix_broken_package = 1; - acpi_bus_register_driver(&acpi_battery_driver); + dmi_check_system(bat_dmi_table); + +#ifdef CONFIG_ACPI_PROCFS_POWER + acpi_battery_dir = acpi_lock_battery_dir(); + if (!acpi_battery_dir) + return; +#endif + if (acpi_bus_register_driver(&acpi_battery_driver) < 0) { +#ifdef CONFIG_ACPI_PROCFS_POWER + acpi_unlock_battery_dir(acpi_battery_dir); +#endif + return; + } + return; } static int __init acpi_battery_init(void) @@ -878,6 +1325,9 @@ static int __init acpi_battery_init(void) static void __exit acpi_battery_exit(void) { acpi_bus_unregister_driver(&acpi_battery_driver); +#ifdef CONFIG_ACPI_PROCFS_POWER + acpi_unlock_battery_dir(acpi_battery_dir); +#endif } module_init(acpi_battery_init); diff --git a/drivers/acpi/battery.h b/drivers/acpi/battery.h new file mode 100644 index 00000000000..6c084976987 --- /dev/null +++ b/drivers/acpi/battery.h @@ -0,0 +1,10 @@ +#ifndef __ACPI_BATTERY_H +#define __ACPI_BATTERY_H + +#define ACPI_BATTERY_CLASS "battery" + +#define ACPI_BATTERY_NOTIFY_STATUS 0x80 +#define ACPI_BATTERY_NOTIFY_INFO 0x81 +#define ACPI_BATTERY_NOTIFY_THRESHOLD 0x82 + +#endif diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c index 078c4f7fe2d..3d8413d02a9 100644 --- a/drivers/acpi/blacklist.c +++ b/drivers/acpi/blacklist.c @@ -30,7 +30,6 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/acpi.h> -#include <acpi/acpi_bus.h> #include <linux/dmi.h> #include "internal.h" @@ -261,14 +260,6 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { }, { .callback = dmi_disable_osi_win8, - .ident = "Dell Inspiron 15R SE", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7520"), - }, - }, - { - .callback = dmi_disable_osi_win8, .ident = "ThinkPad Edge E530", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), @@ -323,6 +314,14 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_VERSION, "2349D15"), }, }, + { + .callback = dmi_disable_osi_win8, + .ident = "Dell Inspiron 7737", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7737"), + }, + }, /* * BIOS invocation of _OSI(Linux) is almost always a BIOS bug. @@ -383,6 +382,19 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T500"), }, }, + /* + * Without this this EEEpc exports a non working WMI interface, with + * this it exports a working "good old" eeepc_laptop interface, fixing + * both brightness control, and rfkill not working. + */ + { + .callback = dmi_enable_osi_linux, + .ident = "Asus EEE PC 1015PX", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "1015PX"), + }, + }, {} }; diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 0710004055c..c5bc8cfe09f 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -33,12 +33,11 @@ #include <linux/proc_fs.h> #include <linux/acpi.h> #include <linux/slab.h> +#include <linux/regulator/machine.h> #ifdef CONFIG_X86 #include <asm/mpspec.h> #endif #include <linux/pci.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> #include <acpi/apei.h> #include <linux/dmi.h> #include <linux/suspend.h> @@ -52,10 +51,13 @@ struct acpi_device *acpi_root; struct proc_dir_entry *acpi_root_dir; EXPORT_SYMBOL(acpi_root_dir); -#define STRUCT_TO_INT(s) (*((int*)&s)) - - #ifdef CONFIG_X86 +#ifdef CONFIG_ACPI_CUSTOM_DSDT +static inline int set_copy_dsdt(const struct dmi_system_id *id) +{ + return 0; +} +#else static int set_copy_dsdt(const struct dmi_system_id *id) { printk(KERN_NOTICE "%s detected - " @@ -63,6 +65,7 @@ static int set_copy_dsdt(const struct dmi_system_id *id) acpi_gbl_copy_dsdt_locally = 1; return 0; } +#endif static struct dmi_system_id dsdt_dmi_table[] __initdata = { /* @@ -115,18 +118,16 @@ int acpi_bus_get_status(struct acpi_device *device) if (ACPI_FAILURE(status)) return -ENODEV; - STRUCT_TO_INT(device->status) = (int) sta; + acpi_set_device_status(device, sta); if (device->status.functional && !device->status.present) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] status [%08x]: " "functional but not present;\n", - device->pnp.bus_id, - (u32) STRUCT_TO_INT(device->status))); + device->pnp.bus_id, (u32)sta)); } ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] status [%08x]\n", - device->pnp.bus_id, - (u32) STRUCT_TO_INT(device->status))); + device->pnp.bus_id, (u32)sta)); return 0; } EXPORT_SYMBOL(acpi_bus_get_status); @@ -138,6 +139,21 @@ void acpi_bus_private_data_handler(acpi_handle handle, } EXPORT_SYMBOL(acpi_bus_private_data_handler); +int acpi_bus_attach_private_data(acpi_handle handle, void *data) +{ + acpi_status status; + + status = acpi_attach_data(handle, + acpi_bus_private_data_handler, data); + if (ACPI_FAILURE(status)) { + acpi_handle_debug(handle, "Error attaching device data\n"); + return -ENODEV; + } + + return 0; +} +EXPORT_SYMBOL_GPL(acpi_bus_attach_private_data); + int acpi_bus_get_private_data(acpi_handle handle, void **data) { acpi_status status; @@ -146,15 +162,20 @@ int acpi_bus_get_private_data(acpi_handle handle, void **data) return -EINVAL; status = acpi_get_data(handle, acpi_bus_private_data_handler, data); - if (ACPI_FAILURE(status) || !*data) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n", - handle)); + if (ACPI_FAILURE(status)) { + acpi_handle_debug(handle, "No context for object\n"); return -ENODEV; } return 0; } -EXPORT_SYMBOL(acpi_bus_get_private_data); +EXPORT_SYMBOL_GPL(acpi_bus_get_private_data); + +void acpi_bus_detach_private_data(acpi_handle handle) +{ + acpi_detach_data(handle, acpi_bus_private_data_handler); +} +EXPORT_SYMBOL_GPL(acpi_bus_detach_private_data); void acpi_bus_no_hotplug(acpi_handle handle) { @@ -317,9 +338,7 @@ static void acpi_bus_osc_support(void) capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PPC_OST_SUPPORT; #endif -#ifdef ACPI_HOTPLUG_OST capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_HOTPLUG_OST_SUPPORT; -#endif if (!ghes_disable) capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_APEI_SUPPORT; @@ -339,58 +358,6 @@ static void acpi_bus_osc_support(void) Notification Handling -------------------------------------------------------------------------- */ -static void acpi_bus_check_device(acpi_handle handle) -{ - struct acpi_device *device; - acpi_status status; - struct acpi_device_status old_status; - - if (acpi_bus_get_device(handle, &device)) - return; - if (!device) - return; - - old_status = device->status; - - /* - * Make sure this device's parent is present before we go about - * messing with the device. - */ - if (device->parent && !device->parent->status.present) { - device->status = device->parent->status; - return; - } - - status = acpi_bus_get_status(device); - if (ACPI_FAILURE(status)) - return; - - if (STRUCT_TO_INT(old_status) == STRUCT_TO_INT(device->status)) - return; - - /* - * Device Insertion/Removal - */ - if ((device->status.present) && !(old_status.present)) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device insertion detected\n")); - /* TBD: Handle device insertion */ - } else if (!(device->status.present) && (old_status.present)) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device removal detected\n")); - /* TBD: Handle device removal */ - } -} - -static void acpi_bus_check_scope(acpi_handle handle) -{ - /* Status Change? */ - acpi_bus_check_device(handle); - - /* - * TBD: Enumerate child devices within this device's scope and - * run acpi_bus_check_device()'s on them. - */ -} - /** * acpi_bus_notify * --------------- @@ -398,68 +365,72 @@ static void acpi_bus_check_scope(acpi_handle handle) */ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data) { - struct acpi_device *device = NULL; + struct acpi_device *adev; struct acpi_driver *driver; - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Notification %#02x to handle %p\n", - type, handle)); + u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; + bool hotplug_event = false; switch (type) { - case ACPI_NOTIFY_BUS_CHECK: - acpi_bus_check_scope(handle); - /* - * TBD: We'll need to outsource certain events to non-ACPI - * drivers via the device manager (device.c). - */ + acpi_handle_debug(handle, "ACPI_NOTIFY_BUS_CHECK event\n"); + hotplug_event = true; break; case ACPI_NOTIFY_DEVICE_CHECK: - acpi_bus_check_device(handle); - /* - * TBD: We'll need to outsource certain events to non-ACPI - * drivers via the device manager (device.c). - */ + acpi_handle_debug(handle, "ACPI_NOTIFY_DEVICE_CHECK event\n"); + hotplug_event = true; break; case ACPI_NOTIFY_DEVICE_WAKE: - /* TBD */ + acpi_handle_debug(handle, "ACPI_NOTIFY_DEVICE_WAKE event\n"); break; case ACPI_NOTIFY_EJECT_REQUEST: - /* TBD */ + acpi_handle_debug(handle, "ACPI_NOTIFY_EJECT_REQUEST event\n"); + hotplug_event = true; break; case ACPI_NOTIFY_DEVICE_CHECK_LIGHT: + acpi_handle_debug(handle, "ACPI_NOTIFY_DEVICE_CHECK_LIGHT event\n"); /* TBD: Exactly what does 'light' mean? */ break; case ACPI_NOTIFY_FREQUENCY_MISMATCH: - /* TBD */ + acpi_handle_err(handle, "Device cannot be configured due " + "to a frequency mismatch\n"); break; case ACPI_NOTIFY_BUS_MODE_MISMATCH: - /* TBD */ + acpi_handle_err(handle, "Device cannot be configured due " + "to a bus mode mismatch\n"); break; case ACPI_NOTIFY_POWER_FAULT: - /* TBD */ + acpi_handle_err(handle, "Device has suffered a power fault\n"); break; default: - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Received unknown/unsupported notification [%08x]\n", - type)); + acpi_handle_debug(handle, "Unknown event type 0x%x\n", type); break; } - acpi_bus_get_device(handle, &device); - if (device) { - driver = device->driver; - if (driver && driver->ops.notify && - (driver->flags & ACPI_DRIVER_ALL_NOTIFY_EVENTS)) - driver->ops.notify(device, type); - } + adev = acpi_bus_get_acpi_device(handle); + if (!adev) + goto err; + + driver = adev->driver; + if (driver && driver->ops.notify && + (driver->flags & ACPI_DRIVER_ALL_NOTIFY_EVENTS)) + driver->ops.notify(adev, type); + + if (hotplug_event && ACPI_SUCCESS(acpi_hotplug_schedule(adev, type))) + return; + + acpi_bus_put_acpi_device(adev); + return; + + err: + acpi_evaluate_ost(handle, type, ost_code, NULL); } /* -------------------------------------------------------------------------- @@ -518,6 +489,9 @@ void __init acpi_early_init(void) printk(KERN_INFO PREFIX "Core revision %08x\n", ACPI_CA_VERSION); + /* It's safe to verify table checksums during late stage */ + acpi_gbl_verify_table_checksum = TRUE; + /* enable workarounds, unless strict ACPI spec. compliance */ if (!acpi_strict) acpi_gbl_enable_interpreter_slack = TRUE; @@ -576,6 +550,14 @@ void __init acpi_early_init(void) goto error0; } + /* + * If the system is using ACPI then we can be reasonably + * confident that any regulators are managed by the firmware + * so tell the regulator core it has everything it needs to + * know. + */ + regulator_has_full_constraints(); + return; error0: diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c index c971929d75c..db35594d4df 100644 --- a/drivers/acpi/button.c +++ b/drivers/acpi/button.c @@ -31,8 +31,7 @@ #include <linux/seq_file.h> #include <linux/input.h> #include <linux/slab.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <acpi/button.h> #define PREFIX "ACPI: " @@ -81,6 +80,8 @@ static void acpi_button_notify(struct acpi_device *device, u32 event); #ifdef CONFIG_PM_SLEEP static int acpi_button_resume(struct device *dev); +#else +#define acpi_button_resume NULL #endif static SIMPLE_DEV_PM_OPS(acpi_button_pm, NULL, acpi_button_resume); @@ -101,7 +102,6 @@ struct acpi_button { struct input_dev *input; char phys[32]; /* for input device */ unsigned long pushed; - bool wakeup_enabled; }; static BLOCKING_NOTIFIER_HEAD(acpi_lid_notifier); @@ -302,6 +302,10 @@ static void acpi_button_notify(struct acpi_device *device, u32 event) input_sync(input); pm_wakeup_event(&device->dev, 0); + acpi_bus_generate_netlink_event( + device->pnp.device_class, + dev_name(&device->dev), + event, ++button->pushed); } break; default: @@ -407,16 +411,6 @@ static int acpi_button_add(struct acpi_device *device) lid_device = device; } - if (device->wakeup.flags.valid) { - /* Button's GPE is run-wake GPE */ - acpi_enable_gpe(device->wakeup.gpe_device, - device->wakeup.gpe_number); - if (!device_may_wakeup(&device->dev)) { - device_set_wakeup_enable(&device->dev, true); - button->wakeup_enabled = true; - } - } - printk(KERN_INFO PREFIX "%s [%s]\n", name, acpi_device_bid(device)); return 0; @@ -433,13 +427,6 @@ static int acpi_button_remove(struct acpi_device *device) { struct acpi_button *button = acpi_driver_data(device); - if (device->wakeup.flags.valid) { - acpi_disable_gpe(device->wakeup.gpe_device, - device->wakeup.gpe_number); - if (button->wakeup_enabled) - device_set_wakeup_enable(&device->dev, false); - } - acpi_button_remove_fs(device); input_unregister_device(button->input); kfree(button); diff --git a/drivers/acpi/cm_sbs.c b/drivers/acpi/cm_sbs.c new file mode 100644 index 00000000000..6c9ee68e46f --- /dev/null +++ b/drivers/acpi/cm_sbs.c @@ -0,0 +1,105 @@ +/* + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/acpi.h> +#include <linux/types.h> +#include <linux/proc_fs.h> +#include <linux/seq_file.h> +#include <acpi/acpi_bus.h> +#include <acpi/acpi_drivers.h> + +#define PREFIX "ACPI: " + +ACPI_MODULE_NAME("cm_sbs"); +#define ACPI_AC_CLASS "ac_adapter" +#define ACPI_BATTERY_CLASS "battery" +#define _COMPONENT ACPI_SBS_COMPONENT +static struct proc_dir_entry *acpi_ac_dir; +static struct proc_dir_entry *acpi_battery_dir; + +static DEFINE_MUTEX(cm_sbs_mutex); + +static int lock_ac_dir_cnt; +static int lock_battery_dir_cnt; + +struct proc_dir_entry *acpi_lock_ac_dir(void) +{ + mutex_lock(&cm_sbs_mutex); + if (!acpi_ac_dir) + acpi_ac_dir = proc_mkdir(ACPI_AC_CLASS, acpi_root_dir); + if (acpi_ac_dir) { + lock_ac_dir_cnt++; + } else { + printk(KERN_ERR PREFIX + "Cannot create %s\n", ACPI_AC_CLASS); + } + mutex_unlock(&cm_sbs_mutex); + return acpi_ac_dir; +} +EXPORT_SYMBOL(acpi_lock_ac_dir); + +void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir_param) +{ + mutex_lock(&cm_sbs_mutex); + if (acpi_ac_dir_param) + lock_ac_dir_cnt--; + if (lock_ac_dir_cnt == 0 && acpi_ac_dir_param && acpi_ac_dir) { + remove_proc_entry(ACPI_AC_CLASS, acpi_root_dir); + acpi_ac_dir = NULL; + } + mutex_unlock(&cm_sbs_mutex); +} +EXPORT_SYMBOL(acpi_unlock_ac_dir); + +struct proc_dir_entry *acpi_lock_battery_dir(void) +{ + mutex_lock(&cm_sbs_mutex); + if (!acpi_battery_dir) { + acpi_battery_dir = + proc_mkdir(ACPI_BATTERY_CLASS, acpi_root_dir); + } + if (acpi_battery_dir) { + lock_battery_dir_cnt++; + } else { + printk(KERN_ERR PREFIX + "Cannot create %s\n", ACPI_BATTERY_CLASS); + } + mutex_unlock(&cm_sbs_mutex); + return acpi_battery_dir; +} +EXPORT_SYMBOL(acpi_lock_battery_dir); + +void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir_param) +{ + mutex_lock(&cm_sbs_mutex); + if (acpi_battery_dir_param) + lock_battery_dir_cnt--; + if (lock_battery_dir_cnt == 0 && acpi_battery_dir_param + && acpi_battery_dir) { + remove_proc_entry(ACPI_BATTERY_CLASS, acpi_root_dir); + acpi_battery_dir = NULL; + } + mutex_unlock(&cm_sbs_mutex); + return; +} +EXPORT_SYMBOL(acpi_unlock_battery_dir); diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c index e2315166765..76f7cff6459 100644 --- a/drivers/acpi/container.c +++ b/drivers/acpi/container.c @@ -27,13 +27,10 @@ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ #include <linux/acpi.h> +#include <linux/container.h> #include "internal.h" -#include "internal.h" - -#define PREFIX "ACPI: " - #define _COMPONENT ACPI_CONTAINER_COMPONENT ACPI_MODULE_NAME("container"); @@ -44,23 +41,88 @@ static const struct acpi_device_id container_device_ids[] = { {"", 0}, }; -static int container_device_attach(struct acpi_device *device, +#ifdef CONFIG_ACPI_CONTAINER + +static int acpi_container_offline(struct container_dev *cdev) +{ + struct acpi_device *adev = ACPI_COMPANION(&cdev->dev); + struct acpi_device *child; + + /* Check all of the dependent devices' physical companions. */ + list_for_each_entry(child, &adev->children, node) + if (!acpi_scan_is_offline(child, false)) + return -EBUSY; + + return 0; +} + +static void acpi_container_release(struct device *dev) +{ + kfree(to_container_dev(dev)); +} + +static int container_device_attach(struct acpi_device *adev, const struct acpi_device_id *not_used) { - /* This is necessary for container hotplug to work. */ + struct container_dev *cdev; + struct device *dev; + int ret; + + if (adev->flags.is_dock_station) + return 0; + + cdev = kzalloc(sizeof(*cdev), GFP_KERNEL); + if (!cdev) + return -ENOMEM; + + cdev->offline = acpi_container_offline; + dev = &cdev->dev; + dev->bus = &container_subsys; + dev_set_name(dev, "%s", dev_name(&adev->dev)); + ACPI_COMPANION_SET(dev, adev); + dev->release = acpi_container_release; + ret = device_register(dev); + if (ret) { + put_device(dev); + return ret; + } + adev->driver_data = dev; return 1; } +static void container_device_detach(struct acpi_device *adev) +{ + struct device *dev = acpi_driver_data(adev); + + adev->driver_data = NULL; + if (dev) + device_unregister(dev); +} + static struct acpi_scan_handler container_handler = { .ids = container_device_ids, .attach = container_device_attach, + .detach = container_device_detach, .hotplug = { .enabled = true, - .mode = AHM_CONTAINER, + .demand_offline = true, }, }; void __init acpi_container_init(void) { + acpi_scan_add_handler(&container_handler); +} + +#else + +static struct acpi_scan_handler container_handler = { + .ids = container_device_ids, +}; + +void __init acpi_container_init(void) +{ acpi_scan_add_handler_with_hotplug(&container_handler, "container"); } + +#endif /* CONFIG_ACPI_CONTAINER */ diff --git a/drivers/acpi/custom_method.c b/drivers/acpi/custom_method.c index 12b62f2cdb3..c68e72414a6 100644 --- a/drivers/acpi/custom_method.c +++ b/drivers/acpi/custom_method.c @@ -7,7 +7,7 @@ #include <linux/kernel.h> #include <linux/uaccess.h> #include <linux/debugfs.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include "internal.h" diff --git a/drivers/acpi/debugfs.c b/drivers/acpi/debugfs.c index b55d6a20dc0..6b1919f6bd8 100644 --- a/drivers/acpi/debugfs.c +++ b/drivers/acpi/debugfs.c @@ -5,7 +5,7 @@ #include <linux/export.h> #include <linux/init.h> #include <linux/debugfs.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #define _COMPONENT ACPI_SYSTEM_COMPONENT ACPI_MODULE_NAME("debugfs"); diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index b3480cf7db1..49a51277f81 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -256,6 +256,8 @@ int acpi_bus_init_power(struct acpi_device *device) return -EINVAL; device->power.state = ACPI_STATE_UNKNOWN; + if (!acpi_device_is_present(device)) + return 0; result = acpi_device_get_power(device, &state); if (result) @@ -302,15 +304,18 @@ int acpi_device_fix_up_power(struct acpi_device *device) return ret; } -int acpi_bus_update_power(acpi_handle handle, int *state_p) +int acpi_device_update_power(struct acpi_device *device, int *state_p) { - struct acpi_device *device; int state; int result; - result = acpi_bus_get_device(handle, &device); - if (result) + if (device->power.state == ACPI_STATE_UNKNOWN) { + result = acpi_bus_init_power(device); + if (!result && state_p) + *state_p = device->power.state; + return result; + } result = acpi_device_get_power(device, &state); if (result) @@ -338,6 +343,15 @@ int acpi_bus_update_power(acpi_handle handle, int *state_p) return 0; } + +int acpi_bus_update_power(acpi_handle handle, int *state_p) +{ + struct acpi_device *device; + int result; + + result = acpi_bus_get_device(handle, &device); + return result ? result : acpi_device_update_power(device, state_p); +} EXPORT_SYMBOL_GPL(acpi_bus_update_power); bool acpi_bus_power_manageable(acpi_handle handle) @@ -713,18 +727,6 @@ int acpi_pm_device_sleep_wake(struct device *dev, bool enable) #endif /* CONFIG_PM_SLEEP */ /** - * acpi_dev_pm_get_node - Get ACPI device node for the given physical device. - * @dev: Device to get the ACPI node for. - */ -struct acpi_device *acpi_dev_pm_get_node(struct device *dev) -{ - acpi_handle handle = ACPI_HANDLE(dev); - struct acpi_device *adev; - - return handle && !acpi_bus_get_device(handle, &adev) ? adev : NULL; -} - -/** * acpi_dev_pm_low_power - Put ACPI device into a low-power state. * @dev: Device to put into a low-power state. * @adev: ACPI device node corresponding to @dev. @@ -764,7 +766,7 @@ static int acpi_dev_pm_full_power(struct acpi_device *adev) */ int acpi_dev_runtime_suspend(struct device *dev) { - struct acpi_device *adev = acpi_dev_pm_get_node(dev); + struct acpi_device *adev = ACPI_COMPANION(dev); bool remote_wakeup; int error; @@ -795,7 +797,7 @@ EXPORT_SYMBOL_GPL(acpi_dev_runtime_suspend); */ int acpi_dev_runtime_resume(struct device *dev) { - struct acpi_device *adev = acpi_dev_pm_get_node(dev); + struct acpi_device *adev = ACPI_COMPANION(dev); int error; if (!adev) @@ -848,7 +850,7 @@ EXPORT_SYMBOL_GPL(acpi_subsys_runtime_resume); */ int acpi_dev_suspend_late(struct device *dev) { - struct acpi_device *adev = acpi_dev_pm_get_node(dev); + struct acpi_device *adev = ACPI_COMPANION(dev); u32 target_state; bool wakeup; int error; @@ -880,7 +882,7 @@ EXPORT_SYMBOL_GPL(acpi_dev_suspend_late); */ int acpi_dev_resume_early(struct device *dev) { - struct acpi_device *adev = acpi_dev_pm_get_node(dev); + struct acpi_device *adev = ACPI_COMPANION(dev); int error; if (!adev) @@ -898,14 +900,59 @@ EXPORT_SYMBOL_GPL(acpi_dev_resume_early); */ int acpi_subsys_prepare(struct device *dev) { + struct acpi_device *adev = ACPI_COMPANION(dev); + u32 sys_target; + int ret, state; + + ret = pm_generic_prepare(dev); + if (ret < 0) + return ret; + + if (!adev || !pm_runtime_suspended(dev) + || device_may_wakeup(dev) != !!adev->wakeup.prepare_count) + return 0; + + sys_target = acpi_target_system_state(); + if (sys_target == ACPI_STATE_S0) + return 1; + + if (adev->power.flags.dsw_present) + return 0; + + ret = acpi_dev_pm_get_state(dev, adev, sys_target, NULL, &state); + return !ret && state == adev->power.state; +} +EXPORT_SYMBOL_GPL(acpi_subsys_prepare); + +/** + * acpi_subsys_complete - Finalize device's resume during system resume. + * @dev: Device to handle. + */ +void acpi_subsys_complete(struct device *dev) +{ /* - * Follow PCI and resume devices suspended at run time before running - * their system suspend callbacks. + * If the device had been runtime-suspended before the system went into + * the sleep state it is going out of and it has never been resumed till + * now, resume it in case the firmware powered it up. */ + if (dev->power.direct_complete) + pm_request_resume(dev); +} +EXPORT_SYMBOL_GPL(acpi_subsys_complete); + +/** + * acpi_subsys_suspend - Run the device driver's suspend callback. + * @dev: Device to handle. + * + * Follow PCI and resume devices suspended at run time before running their + * system suspend callbacks. + */ +int acpi_subsys_suspend(struct device *dev) +{ pm_runtime_resume(dev); - return pm_generic_prepare(dev); + return pm_generic_suspend(dev); } -EXPORT_SYMBOL_GPL(acpi_subsys_prepare); +EXPORT_SYMBOL_GPL(acpi_subsys_suspend); /** * acpi_subsys_suspend_late - Suspend device using ACPI. @@ -935,6 +982,24 @@ int acpi_subsys_resume_early(struct device *dev) return ret ? ret : pm_generic_resume_early(dev); } EXPORT_SYMBOL_GPL(acpi_subsys_resume_early); + +/** + * acpi_subsys_freeze - Run the device driver's freeze callback. + * @dev: Device to handle. + */ +int acpi_subsys_freeze(struct device *dev) +{ + /* + * This used to be done in acpi_subsys_prepare() for all devices and + * some drivers may depend on it, so do it here. Ideally, however, + * runtime-suspended devices should not be touched during freeze/thaw + * transitions. + */ + pm_runtime_resume(dev); + return pm_generic_freeze(dev); +} +EXPORT_SYMBOL_GPL(acpi_subsys_freeze); + #endif /* CONFIG_PM_SLEEP */ static struct dev_pm_domain acpi_general_pm_domain = { @@ -945,8 +1010,12 @@ static struct dev_pm_domain acpi_general_pm_domain = { #endif #ifdef CONFIG_PM_SLEEP .prepare = acpi_subsys_prepare, + .complete = acpi_subsys_complete, + .suspend = acpi_subsys_suspend, .suspend_late = acpi_subsys_suspend_late, .resume_early = acpi_subsys_resume_early, + .freeze = acpi_subsys_freeze, + .poweroff = acpi_subsys_suspend, .poweroff_late = acpi_subsys_suspend_late, .restore_early = acpi_subsys_resume_early, #endif @@ -971,7 +1040,7 @@ static struct dev_pm_domain acpi_general_pm_domain = { */ int acpi_dev_pm_attach(struct device *dev, bool power_on) { - struct acpi_device *adev = acpi_dev_pm_get_node(dev); + struct acpi_device *adev = ACPI_COMPANION(dev); if (!adev) return -ENODEV; @@ -1003,7 +1072,7 @@ EXPORT_SYMBOL_GPL(acpi_dev_pm_attach); */ void acpi_dev_pm_detach(struct device *dev, bool power_off) { - struct acpi_device *adev = acpi_dev_pm_get_node(dev); + struct acpi_device *adev = ACPI_COMPANION(dev); if (adev && dev->pm_domain == &acpi_general_pm_domain) { dev->pm_domain = NULL; diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c index dcd73ccb514..d9339b442a4 100644 --- a/drivers/acpi/dock.c +++ b/drivers/acpi/dock.c @@ -1,7 +1,9 @@ /* * dock.c - ACPI dock station driver * - * Copyright (C) 2006 Kristen Carlson Accardi <kristen.c.accardi@intel.com> + * Copyright (C) 2006, 2014, Intel Corp. + * Author: Kristen Carlson Accardi <kristen.c.accardi@intel.com> + * Rafael J. Wysocki <rafael.j.wysocki@intel.com> * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * @@ -32,10 +34,8 @@ #include <linux/jiffies.h> #include <linux/stddef.h> #include <linux/acpi.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> -#define PREFIX "ACPI: " +#include "internal.h" #define ACPI_DOCK_DRIVER_DESCRIPTION "ACPI Dock Station Driver" @@ -51,12 +51,6 @@ MODULE_PARM_DESC(immediate_undock, "1 (default) will cause the driver to " " the driver to wait for userspace to write the undock sysfs file " " before undocking"); -static const struct acpi_device_id dock_device_ids[] = { - {"LNXDOCK", 0}, - {"", 0}, -}; -MODULE_DEVICE_TABLE(acpi, dock_device_ids); - struct dock_station { acpi_handle handle; unsigned long last_dock_time; @@ -68,15 +62,10 @@ struct dock_station { }; static LIST_HEAD(dock_stations); static int dock_station_count; -static DEFINE_MUTEX(hotplug_lock); struct dock_dependent_device { struct list_head list; - acpi_handle handle; - const struct acpi_dock_ops *hp_ops; - void *hp_context; - unsigned int hp_refcount; - void (*hp_release)(void *); + struct acpi_device *adev; }; #define DOCK_DOCKING 0x00000001 @@ -98,13 +87,13 @@ enum dock_callback_type { *****************************************************************************/ /** * add_dock_dependent_device - associate a device with the dock station - * @ds: The dock station - * @handle: handle of the dependent device + * @ds: Dock station. + * @adev: Dependent ACPI device object. * * Add the dependent device to the dock's dependent device list. */ -static int __init -add_dock_dependent_device(struct dock_station *ds, acpi_handle handle) +static int add_dock_dependent_device(struct dock_station *ds, + struct acpi_device *adev) { struct dock_dependent_device *dd; @@ -112,180 +101,120 @@ add_dock_dependent_device(struct dock_station *ds, acpi_handle handle) if (!dd) return -ENOMEM; - dd->handle = handle; + dd->adev = adev; INIT_LIST_HEAD(&dd->list); list_add_tail(&dd->list, &ds->dependent_devices); return 0; } -static void remove_dock_dependent_devices(struct dock_station *ds) +static void dock_hotplug_event(struct dock_dependent_device *dd, u32 event, + enum dock_callback_type cb_type) { - struct dock_dependent_device *dd, *aux; + struct acpi_device *adev = dd->adev; - list_for_each_entry_safe(dd, aux, &ds->dependent_devices, list) { - list_del(&dd->list); - kfree(dd); - } -} + acpi_lock_hp_context(); -/** - * dock_init_hotplug - Initialize a hotplug device on a docking station. - * @dd: Dock-dependent device. - * @ops: Dock operations to attach to the dependent device. - * @context: Data to pass to the @ops callbacks and @release. - * @init: Optional initialization routine to run after setting up context. - * @release: Optional release routine to run on removal. - */ -static int dock_init_hotplug(struct dock_dependent_device *dd, - const struct acpi_dock_ops *ops, void *context, - void (*init)(void *), void (*release)(void *)) -{ - int ret = 0; + if (!adev->hp) + goto out; - mutex_lock(&hotplug_lock); - if (WARN_ON(dd->hp_context)) { - ret = -EEXIST; - } else { - dd->hp_refcount = 1; - dd->hp_ops = ops; - dd->hp_context = context; - dd->hp_release = release; - if (init) - init(context); - } - mutex_unlock(&hotplug_lock); - return ret; -} + if (cb_type == DOCK_CALL_FIXUP) { + void (*fixup)(struct acpi_device *); -/** - * dock_release_hotplug - Decrement hotplug reference counter of dock device. - * @dd: Dock-dependent device. - * - * Decrement the reference counter of @dd and if 0, detach its hotplug - * operations from it, reset its context pointer and run the optional release - * routine if present. - */ -static void dock_release_hotplug(struct dock_dependent_device *dd) -{ - mutex_lock(&hotplug_lock); - if (dd->hp_context && !--dd->hp_refcount) { - void (*release)(void *) = dd->hp_release; - void *context = dd->hp_context; - - dd->hp_ops = NULL; - dd->hp_context = NULL; - dd->hp_release = NULL; - if (release) - release(context); - } - mutex_unlock(&hotplug_lock); -} + fixup = adev->hp->fixup; + if (fixup) { + acpi_unlock_hp_context(); + fixup(adev); + return; + } + } else if (cb_type == DOCK_CALL_UEVENT) { + void (*uevent)(struct acpi_device *, u32); + + uevent = adev->hp->uevent; + if (uevent) { + acpi_unlock_hp_context(); + uevent(adev, event); + return; + } + } else { + int (*notify)(struct acpi_device *, u32); -static void dock_hotplug_event(struct dock_dependent_device *dd, u32 event, - enum dock_callback_type cb_type) -{ - acpi_notify_handler cb = NULL; - bool run = false; - - mutex_lock(&hotplug_lock); - - if (dd->hp_context) { - run = true; - dd->hp_refcount++; - if (dd->hp_ops) { - switch (cb_type) { - case DOCK_CALL_FIXUP: - cb = dd->hp_ops->fixup; - break; - case DOCK_CALL_UEVENT: - cb = dd->hp_ops->uevent; - break; - default: - cb = dd->hp_ops->handler; - } + notify = adev->hp->notify; + if (notify) { + acpi_unlock_hp_context(); + notify(adev, event); + return; } } - mutex_unlock(&hotplug_lock); + out: + acpi_unlock_hp_context(); +} - if (!run) - return; +static struct dock_station *find_dock_station(acpi_handle handle) +{ + struct dock_station *ds; - if (cb) - cb(dd->handle, event, dd->hp_context); + list_for_each_entry(ds, &dock_stations, sibling) + if (ds->handle == handle) + return ds; - dock_release_hotplug(dd); + return NULL; } /** * find_dock_dependent_device - get a device dependent on this dock * @ds: the dock station - * @handle: the acpi_handle of the device we want + * @adev: ACPI device object to find. * * iterate over the dependent device list for this dock. If the * dependent device matches the handle, return. */ static struct dock_dependent_device * -find_dock_dependent_device(struct dock_station *ds, acpi_handle handle) +find_dock_dependent_device(struct dock_station *ds, struct acpi_device *adev) { struct dock_dependent_device *dd; list_for_each_entry(dd, &ds->dependent_devices, list) - if (handle == dd->handle) + if (adev == dd->adev) return dd; return NULL; } -/***************************************************************************** - * Dock functions * - *****************************************************************************/ -static int __init is_battery(acpi_handle handle) +void register_dock_dependent_device(struct acpi_device *adev, + acpi_handle dshandle) { - struct acpi_device_info *info; - int ret = 1; + struct dock_station *ds = find_dock_station(dshandle); - if (!ACPI_SUCCESS(acpi_get_object_info(handle, &info))) - return 0; - if (!(info->valid & ACPI_VALID_HID)) - ret = 0; - else - ret = !strcmp("PNP0C0A", info->hardware_id.string); - - kfree(info); - return ret; + if (ds && !find_dock_dependent_device(ds, adev)) + add_dock_dependent_device(ds, adev); } -/* Check whether ACPI object is an ejectable battery or disk bay */ -static bool __init is_ejectable_bay(acpi_handle handle) -{ - if (acpi_has_method(handle, "_EJ0") && is_battery(handle)) - return true; - - return acpi_bay_match(handle); -} +/***************************************************************************** + * Dock functions * + *****************************************************************************/ /** * is_dock_device - see if a device is on a dock station - * @handle: acpi handle of the device + * @adev: ACPI device object to check. * * If this device is either the dock station itself, * or is a device dependent on the dock station, then it * is a dock device */ -int is_dock_device(acpi_handle handle) +int is_dock_device(struct acpi_device *adev) { struct dock_station *dock_station; if (!dock_station_count) return 0; - if (acpi_dock_match(handle)) + if (acpi_dock_match(adev->handle)) return 1; list_for_each_entry(dock_station, &dock_stations, sibling) - if (find_dock_dependent_device(dock_station, handle)) + if (find_dock_dependent_device(dock_station, adev)) return 1; return 0; @@ -313,46 +242,6 @@ static int dock_present(struct dock_station *ds) } /** - * dock_create_acpi_device - add new devices to acpi - * @handle - handle of the device to add - * - * This function will create a new acpi_device for the given - * handle if one does not exist already. This should cause - * acpi to scan for drivers for the given devices, and call - * matching driver's add routine. - */ -static void dock_create_acpi_device(acpi_handle handle) -{ - struct acpi_device *device; - int ret; - - if (acpi_bus_get_device(handle, &device)) { - /* - * no device created for this object, - * so we should create one. - */ - ret = acpi_bus_scan(handle); - if (ret) - pr_debug("error adding bus, %x\n", -ret); - } -} - -/** - * dock_remove_acpi_device - remove the acpi_device struct from acpi - * @handle - the handle of the device to remove - * - * Tell acpi to remove the acpi_device. This should cause any loaded - * driver to have it's remove routine called. - */ -static void dock_remove_acpi_device(acpi_handle handle) -{ - struct acpi_device *device; - - if (!acpi_bus_get_device(handle, &device)) - acpi_bus_trim(device); -} - -/** * hot_remove_dock_devices - Remove dock station devices. * @ds: Dock station. */ @@ -369,7 +258,7 @@ static void hot_remove_dock_devices(struct dock_station *ds) dock_hotplug_event(dd, ACPI_NOTIFY_EJECT_REQUEST, false); list_for_each_entry_reverse(dd, &ds->dependent_devices, list) - dock_remove_acpi_device(dd->handle); + acpi_bus_trim(dd->adev); } /** @@ -395,12 +284,20 @@ static void hotplug_dock_devices(struct dock_station *ds, u32 event) dock_hotplug_event(dd, event, DOCK_CALL_HANDLER); /* - * Now make sure that an acpi_device is created for each dependent - * device. That will cause scan handlers to be attached to device - * objects or acpi_drivers to be stopped/started if they are present. + * Check if all devices have been enumerated already. If not, run + * acpi_bus_scan() for them and that will cause scan handlers to be + * attached to device objects or acpi_drivers to be stopped/started if + * they are present. */ - list_for_each_entry(dd, &ds->dependent_devices, list) - dock_create_acpi_device(dd->handle); + list_for_each_entry(dd, &ds->dependent_devices, list) { + struct acpi_device *adev = dd->adev; + + if (!acpi_device_enumerated(adev)) { + int ret = acpi_bus_scan(adev->handle); + if (ret) + dev_dbg(&adev->dev, "scan error %d\n", -ret); + } + } } static void dock_event(struct dock_station *ds, u32 event, int num) @@ -504,71 +401,6 @@ static int dock_in_progress(struct dock_station *ds) } /** - * register_hotplug_dock_device - register a hotplug function - * @handle: the handle of the device - * @ops: handlers to call after docking - * @context: device specific data - * @init: Optional initialization routine to run after registration - * @release: Optional release routine to run on unregistration - * - * If a driver would like to perform a hotplug operation after a dock - * event, they can register an acpi_notifiy_handler to be called by - * the dock driver after _DCK is executed. - */ -int register_hotplug_dock_device(acpi_handle handle, - const struct acpi_dock_ops *ops, void *context, - void (*init)(void *), void (*release)(void *)) -{ - struct dock_dependent_device *dd; - struct dock_station *dock_station; - int ret = -EINVAL; - - if (WARN_ON(!context)) - return -EINVAL; - - if (!dock_station_count) - return -ENODEV; - - /* - * make sure this handle is for a device dependent on the dock, - * this would include the dock station itself - */ - list_for_each_entry(dock_station, &dock_stations, sibling) { - /* - * An ATA bay can be in a dock and itself can be ejected - * separately, so there are two 'dock stations' which need the - * ops - */ - dd = find_dock_dependent_device(dock_station, handle); - if (dd && !dock_init_hotplug(dd, ops, context, init, release)) - ret = 0; - } - - return ret; -} -EXPORT_SYMBOL_GPL(register_hotplug_dock_device); - -/** - * unregister_hotplug_dock_device - remove yourself from the hotplug list - * @handle: the acpi handle of the device - */ -void unregister_hotplug_dock_device(acpi_handle handle) -{ - struct dock_dependent_device *dd; - struct dock_station *dock_station; - - if (!dock_station_count) - return; - - list_for_each_entry(dock_station, &dock_stations, sibling) { - dd = find_dock_dependent_device(dock_station, handle); - if (dd) - dock_release_hotplug(dd); - } -} -EXPORT_SYMBOL_GPL(unregister_hotplug_dock_device); - -/** * handle_eject_request - handle an undock request checking for error conditions * * Check to make sure the dock device is still present, then undock and @@ -601,20 +433,23 @@ static int handle_eject_request(struct dock_station *ds, u32 event) } /** - * dock_notify - act upon an acpi dock notification - * @ds: dock station - * @event: the acpi event + * dock_notify - Handle ACPI dock notification. + * @adev: Dock station's ACPI device object. + * @event: Event code. * * If we are notified to dock, then check to see if the dock is * present and then dock. Notify all drivers of the dock event, * and then hotplug and devices that may need hotplugging. */ -static void dock_notify(struct dock_station *ds, u32 event) +int dock_notify(struct acpi_device *adev, u32 event) { - acpi_handle handle = ds->handle; - struct acpi_device *ad; + acpi_handle handle = adev->handle; + struct dock_station *ds = find_dock_station(handle); int surprise_removal = 0; + if (!ds) + return -ENODEV; + /* * According to acpi spec 3.0a, if a DEVICE_CHECK notification * is sent and _DCK is present, it is assumed to mean an undock @@ -635,7 +470,7 @@ static void dock_notify(struct dock_station *ds, u32 event) switch (event) { case ACPI_NOTIFY_BUS_CHECK: case ACPI_NOTIFY_DEVICE_CHECK: - if (!dock_in_progress(ds) && acpi_bus_get_device(handle, &ad)) { + if (!dock_in_progress(ds) && !acpi_device_enumerated(adev)) { begin_dock(ds); dock(ds); if (!dock_present(ds)) { @@ -664,49 +499,8 @@ static void dock_notify(struct dock_station *ds, u32 event) else dock_event(ds, event, UNDOCK_EVENT); break; - default: - acpi_handle_err(handle, "Unknown dock event %d\n", event); } -} - -static void acpi_dock_deferred_cb(void *data, u32 event) -{ - acpi_scan_lock_acquire(); - dock_notify(data, event); - acpi_scan_lock_release(); -} - -static void dock_notify_handler(acpi_handle handle, u32 event, void *data) -{ - if (event != ACPI_NOTIFY_BUS_CHECK && event != ACPI_NOTIFY_DEVICE_CHECK - && event != ACPI_NOTIFY_EJECT_REQUEST) - return; - - acpi_hotplug_execute(acpi_dock_deferred_cb, data, event); -} - -/** - * find_dock_devices - find devices on the dock station - * @handle: the handle of the device we are examining - * @lvl: unused - * @context: the dock station private data - * @rv: unused - * - * This function is called by acpi_walk_namespace. It will - * check to see if an object has an _EJD method. If it does, then it - * will see if it is dependent on the dock station. - */ -static acpi_status __init find_dock_devices(acpi_handle handle, u32 lvl, - void *context, void **rv) -{ - struct dock_station *ds = context; - acpi_handle ejd = NULL; - - acpi_bus_get_ejd(handle, &ejd); - if (ejd == ds->handle) - add_dock_dependent_device(ds, handle); - - return AE_OK; + return 0; } /* @@ -715,13 +509,11 @@ static acpi_status __init find_dock_devices(acpi_handle handle, u32 lvl, static ssize_t show_docked(struct device *dev, struct device_attribute *attr, char *buf) { - struct acpi_device *tmp; - struct dock_station *dock_station = dev->platform_data; + struct acpi_device *adev = NULL; - if (!acpi_bus_get_device(dock_station->handle, &tmp)) - return snprintf(buf, PAGE_SIZE, "1\n"); - return snprintf(buf, PAGE_SIZE, "0\n"); + acpi_bus_get_device(dock_station->handle, &adev); + return snprintf(buf, PAGE_SIZE, "%u\n", acpi_device_enumerated(adev)); } static DEVICE_ATTR(docked, S_IRUGO, show_docked, NULL); @@ -807,23 +599,28 @@ static struct attribute_group dock_attribute_group = { }; /** - * dock_add - add a new dock station - * @handle: the dock station handle + * acpi_dock_add - Add a new dock station + * @adev: Dock station ACPI device object. * - * allocated and initialize a new dock station device. Find all devices - * that are on the dock station, and register for dock event notifications. + * allocated and initialize a new dock station device. */ -static int __init dock_add(acpi_handle handle) +void acpi_dock_add(struct acpi_device *adev) { struct dock_station *dock_station, ds = { NULL, }; + struct platform_device_info pdevinfo; + acpi_handle handle = adev->handle; struct platform_device *dd; - acpi_status status; int ret; - dd = platform_device_register_data(NULL, "dock", dock_station_count, - &ds, sizeof(ds)); + memset(&pdevinfo, 0, sizeof(pdevinfo)); + pdevinfo.name = "dock"; + pdevinfo.id = dock_station_count; + pdevinfo.acpi_node.companion = adev; + pdevinfo.data = &ds; + pdevinfo.size_data = sizeof(ds); + dd = platform_device_register_full(&pdevinfo); if (IS_ERR(dd)) - return PTR_ERR(dd); + return; dock_station = dd->dev.platform_data; @@ -841,75 +638,29 @@ static int __init dock_add(acpi_handle handle) dock_station->flags |= DOCK_IS_DOCK; if (acpi_ata_match(handle)) dock_station->flags |= DOCK_IS_ATA; - if (is_battery(handle)) + if (acpi_device_is_battery(adev)) dock_station->flags |= DOCK_IS_BAT; ret = sysfs_create_group(&dd->dev.kobj, &dock_attribute_group); if (ret) goto err_unregister; - /* Find dependent devices */ - acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, find_dock_devices, NULL, - dock_station, NULL); - /* add the dock station as a device dependent on itself */ - ret = add_dock_dependent_device(dock_station, handle); + ret = add_dock_dependent_device(dock_station, adev); if (ret) goto err_rmgroup; - status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY, - dock_notify_handler, dock_station); - if (ACPI_FAILURE(status)) { - ret = -ENODEV; - goto err_rmgroup; - } - dock_station_count++; list_add(&dock_station->sibling, &dock_stations); - return 0; + adev->flags.is_dock_station = true; + dev_info(&adev->dev, "ACPI dock station (docks/bays count: %d)\n", + dock_station_count); + return; err_rmgroup: - remove_dock_dependent_devices(dock_station); sysfs_remove_group(&dd->dev.kobj, &dock_attribute_group); + err_unregister: platform_device_unregister(dd); acpi_handle_err(handle, "%s encountered error %d\n", __func__, ret); - return ret; -} - -/** - * find_dock_and_bay - look for dock stations and bays - * @handle: acpi handle of a device - * @lvl: unused - * @context: unused - * @rv: unused - * - * This is called by acpi_walk_namespace to look for dock stations and bays. - */ -static acpi_status __init -find_dock_and_bay(acpi_handle handle, u32 lvl, void *context, void **rv) -{ - if (acpi_dock_match(handle) || is_ejectable_bay(handle)) - dock_add(handle); - - return AE_OK; -} - -void __init acpi_dock_init(void) -{ - if (acpi_disabled) - return; - - /* look for dock stations and bays */ - acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, find_dock_and_bay, NULL, NULL, NULL); - - if (!dock_station_count) { - pr_info(PREFIX "No dock devices found.\n"); - return; - } - - pr_info(PREFIX "%s: %d docks/bays found\n", - ACPI_DOCK_DRIVER_DESCRIPTION, dock_station_count); } diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index ba5b56db9d2..a66ab658abb 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -1,11 +1,14 @@ /* - * ec.c - ACPI Embedded Controller Driver (v2.1) + * ec.c - ACPI Embedded Controller Driver (v2.2) * - * Copyright (C) 2006-2008 Alexey Starikovskiy <astarikovskiy@suse.de> - * Copyright (C) 2006 Denis Sadykov <denis.m.sadykov@intel.com> - * Copyright (C) 2004 Luming Yu <luming.yu@intel.com> - * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com> - * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> + * Copyright (C) 2001-2014 Intel Corporation + * Author: 2014 Lv Zheng <lv.zheng@intel.com> + * 2006, 2007 Alexey Starikovskiy <alexey.y.starikovskiy@intel.com> + * 2006 Denis Sadykov <denis.m.sadykov@intel.com> + * 2004 Luming Yu <luming.yu@intel.com> + * 2001, 2002 Andy Grover <andrew.grover@intel.com> + * 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> + * Copyright (C) 2008 Alexey Starikovskiy <astarikovskiy@suse.de> * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * @@ -39,10 +42,9 @@ #include <linux/list.h> #include <linux/spinlock.h> #include <linux/slab.h> -#include <asm/io.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <linux/dmi.h> +#include <asm/io.h> #include "internal.h" @@ -53,6 +55,7 @@ /* EC status register */ #define ACPI_EC_FLAG_OBF 0x01 /* Output buffer full */ #define ACPI_EC_FLAG_IBF 0x02 /* Input buffer full */ +#define ACPI_EC_FLAG_CMD 0x08 /* Input buffer contains a command */ #define ACPI_EC_FLAG_BURST 0x10 /* burst mode */ #define ACPI_EC_FLAG_SCI 0x20 /* EC-SCI occurred */ @@ -68,6 +71,8 @@ enum ec_command { #define ACPI_EC_DELAY 500 /* Wait 500ms max. during EC ops */ #define ACPI_EC_UDELAY_GLK 1000 /* Wait 1ms max. to get global lock */ #define ACPI_EC_MSI_UDELAY 550 /* Wait 550us for MSI EC */ +#define ACPI_EC_CLEAR_MAX 100 /* Maximum number of events to query + * when trying to clear the EC */ enum { EC_FLAGS_QUERY_PENDING, /* Query is pending */ @@ -77,6 +82,9 @@ enum { EC_FLAGS_BLOCKED, /* Transactions are blocked */ }; +#define ACPI_EC_COMMAND_POLL 0x01 /* Available for command byte */ +#define ACPI_EC_COMMAND_COMPLETE 0x02 /* Completed last byte */ + /* ec.c is compiled in acpi namespace so this shows up as acpi.ec_delay param */ static unsigned int ec_delay __read_mostly = ACPI_EC_DELAY; module_param(ec_delay, uint, 0644); @@ -91,10 +99,6 @@ static unsigned int ec_storm_threshold __read_mostly = 8; module_param(ec_storm_threshold, uint, 0644); MODULE_PARM_DESC(ec_storm_threshold, "Maxim false GPE numbers not considered as GPE storm"); -/* If we find an EC via the ECDT, we need to keep a ptr to its context */ -/* External interfaces use first EC only, so remember */ -typedef int (*acpi_ec_query_func) (void *data); - struct acpi_ec_query_handler { struct list_head node; acpi_ec_query_func func; @@ -112,7 +116,7 @@ struct transaction { u8 ri; u8 wlen; u8 rlen; - bool done; + u8 flags; }; struct acpi_ec *boot_ec, *first_ec; @@ -121,6 +125,7 @@ EXPORT_SYMBOL(first_ec); static int EC_FLAGS_MSI; /* Out-of-spec MSI controller */ static int EC_FLAGS_VALIDATE_ECDT; /* ASUStec ECDTs need to be validated */ static int EC_FLAGS_SKIP_DSDT_SCAN; /* Not all BIOS survive early DSDT scan */ +static int EC_FLAGS_CLEAR_ON_RESUME; /* Needs acpi_ec_clear() on boot/resume */ /* -------------------------------------------------------------------------- Transaction Management @@ -129,92 +134,113 @@ static int EC_FLAGS_SKIP_DSDT_SCAN; /* Not all BIOS survive early DSDT scan */ static inline u8 acpi_ec_read_status(struct acpi_ec *ec) { u8 x = inb(ec->command_addr); - pr_debug("---> status = 0x%2.2x\n", x); + pr_debug("EC_SC(R) = 0x%2.2x " + "SCI_EVT=%d BURST=%d CMD=%d IBF=%d OBF=%d\n", + x, + !!(x & ACPI_EC_FLAG_SCI), + !!(x & ACPI_EC_FLAG_BURST), + !!(x & ACPI_EC_FLAG_CMD), + !!(x & ACPI_EC_FLAG_IBF), + !!(x & ACPI_EC_FLAG_OBF)); return x; } static inline u8 acpi_ec_read_data(struct acpi_ec *ec) { u8 x = inb(ec->data_addr); - pr_debug("---> data = 0x%2.2x\n", x); + pr_debug("EC_DATA(R) = 0x%2.2x\n", x); return x; } static inline void acpi_ec_write_cmd(struct acpi_ec *ec, u8 command) { - pr_debug("<--- command = 0x%2.2x\n", command); + pr_debug("EC_SC(W) = 0x%2.2x\n", command); outb(command, ec->command_addr); } static inline void acpi_ec_write_data(struct acpi_ec *ec, u8 data) { - pr_debug("<--- data = 0x%2.2x\n", data); + pr_debug("EC_DATA(W) = 0x%2.2x\n", data); outb(data, ec->data_addr); } -static int ec_transaction_done(struct acpi_ec *ec) +static int ec_transaction_completed(struct acpi_ec *ec) { unsigned long flags; int ret = 0; spin_lock_irqsave(&ec->lock, flags); - if (!ec->curr || ec->curr->done) + if (ec->curr && (ec->curr->flags & ACPI_EC_COMMAND_COMPLETE)) ret = 1; spin_unlock_irqrestore(&ec->lock, flags); return ret; } -static void start_transaction(struct acpi_ec *ec) +static bool advance_transaction(struct acpi_ec *ec) { - ec->curr->irq_count = ec->curr->wi = ec->curr->ri = 0; - ec->curr->done = false; - acpi_ec_write_cmd(ec, ec->curr->command); -} - -static void advance_transaction(struct acpi_ec *ec, u8 status) -{ - unsigned long flags; struct transaction *t; + u8 status; + bool wakeup = false; - spin_lock_irqsave(&ec->lock, flags); + pr_debug("===== %s =====\n", in_interrupt() ? "IRQ" : "TASK"); + status = acpi_ec_read_status(ec); t = ec->curr; if (!t) - goto unlock; - if (t->wlen > t->wi) { - if ((status & ACPI_EC_FLAG_IBF) == 0) - acpi_ec_write_data(ec, - t->wdata[t->wi++]); - else - goto err; - } else if (t->rlen > t->ri) { - if ((status & ACPI_EC_FLAG_OBF) == 1) { - t->rdata[t->ri++] = acpi_ec_read_data(ec); - if (t->rlen == t->ri) - t->done = true; + goto err; + if (t->flags & ACPI_EC_COMMAND_POLL) { + if (t->wlen > t->wi) { + if ((status & ACPI_EC_FLAG_IBF) == 0) + acpi_ec_write_data(ec, t->wdata[t->wi++]); + else + goto err; + } else if (t->rlen > t->ri) { + if ((status & ACPI_EC_FLAG_OBF) == 1) { + t->rdata[t->ri++] = acpi_ec_read_data(ec); + if (t->rlen == t->ri) { + t->flags |= ACPI_EC_COMMAND_COMPLETE; + wakeup = true; + } + } else + goto err; + } else if (t->wlen == t->wi && + (status & ACPI_EC_FLAG_IBF) == 0) { + t->flags |= ACPI_EC_COMMAND_COMPLETE; + wakeup = true; + } + return wakeup; + } else { + if ((status & ACPI_EC_FLAG_IBF) == 0) { + acpi_ec_write_cmd(ec, t->command); + t->flags |= ACPI_EC_COMMAND_POLL; } else goto err; - } else if (t->wlen == t->wi && - (status & ACPI_EC_FLAG_IBF) == 0) - t->done = true; - goto unlock; + return wakeup; + } err: /* * If SCI bit is set, then don't think it's a false IRQ * otherwise will take a not handled IRQ as a false one. */ - if (in_interrupt() && !(status & ACPI_EC_FLAG_SCI)) - ++t->irq_count; + if (!(status & ACPI_EC_FLAG_SCI)) { + if (in_interrupt() && t) + ++t->irq_count; + } + return wakeup; +} -unlock: - spin_unlock_irqrestore(&ec->lock, flags); +static void start_transaction(struct acpi_ec *ec) +{ + ec->curr->irq_count = ec->curr->wi = ec->curr->ri = 0; + ec->curr->flags = 0; + (void)advance_transaction(ec); } -static int acpi_ec_sync_query(struct acpi_ec *ec); +static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data); static int ec_check_sci_sync(struct acpi_ec *ec, u8 state) { if (state & ACPI_EC_FLAG_SCI) { if (!test_and_set_bit(EC_FLAGS_QUERY_PENDING, &ec->flags)) - return acpi_ec_sync_query(ec); + return acpi_ec_sync_query(ec, NULL); } return 0; } @@ -230,15 +256,17 @@ static int ec_poll(struct acpi_ec *ec) /* don't sleep with disabled interrupts */ if (EC_FLAGS_MSI || irqs_disabled()) { udelay(ACPI_EC_MSI_UDELAY); - if (ec_transaction_done(ec)) + if (ec_transaction_completed(ec)) return 0; } else { if (wait_event_timeout(ec->wait, - ec_transaction_done(ec), + ec_transaction_completed(ec), msecs_to_jiffies(1))) return 0; } - advance_transaction(ec, acpi_ec_read_status(ec)); + spin_lock_irqsave(&ec->lock, flags); + (void)advance_transaction(ec); + spin_unlock_irqrestore(&ec->lock, flags); } while (time_before(jiffies, delay)); pr_debug("controller reset, restart transaction\n"); spin_lock_irqsave(&ec->lock, flags); @@ -270,23 +298,6 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, return ret; } -static int ec_check_ibf0(struct acpi_ec *ec) -{ - u8 status = acpi_ec_read_status(ec); - return (status & ACPI_EC_FLAG_IBF) == 0; -} - -static int ec_wait_ibf0(struct acpi_ec *ec) -{ - unsigned long delay = jiffies + msecs_to_jiffies(ec_delay); - /* interrupt wait manually if GPE mode is not active */ - while (time_before(jiffies, delay)) - if (wait_event_timeout(ec->wait, ec_check_ibf0(ec), - msecs_to_jiffies(1))) - return 0; - return -ETIME; -} - static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t) { int status; @@ -307,12 +318,6 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t) goto unlock; } } - if (ec_wait_ibf0(ec)) { - pr_err("input buffer is not empty, " - "aborting transaction\n"); - status = -ETIME; - goto end; - } pr_debug("transaction start (cmd=0x%02x, addr=0x%02x)\n", t->command, t->wdata ? t->wdata[0] : 0); /* disable GPE during transaction if storm is detected */ @@ -336,7 +341,6 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t) set_bit(EC_FLAGS_GPE_STORM, &ec->flags); } pr_debug("transaction end\n"); -end: if (ec->global_lock) acpi_release_global_lock(glk); unlock: @@ -387,27 +391,6 @@ static int acpi_ec_write(struct acpi_ec *ec, u8 address, u8 data) return acpi_ec_transaction(ec, &t); } -/* - * Externally callable EC access functions. For now, assume 1 EC only - */ -int ec_burst_enable(void) -{ - if (!first_ec) - return -ENODEV; - return acpi_ec_burst_enable(first_ec); -} - -EXPORT_SYMBOL(ec_burst_enable); - -int ec_burst_disable(void) -{ - if (!first_ec) - return -ENODEV; - return acpi_ec_burst_disable(first_ec); -} - -EXPORT_SYMBOL(ec_burst_disable); - int ec_read(u8 addr, u8 *val) { int err; @@ -466,6 +449,27 @@ acpi_handle ec_get_handle(void) EXPORT_SYMBOL(ec_get_handle); +/* + * Process _Q events that might have accumulated in the EC. + * Run with locked ec mutex. + */ +static void acpi_ec_clear(struct acpi_ec *ec) +{ + int i, status; + u8 value = 0; + + for (i = 0; i < ACPI_EC_CLEAR_MAX; i++) { + status = acpi_ec_sync_query(ec, &value); + if (status || !value) + break; + } + + if (unlikely(i == ACPI_EC_CLEAR_MAX)) + pr_warn("Warning: Maximum of %d stale EC events cleared\n", i); + else + pr_info("%d stale EC events cleared\n", i); +} + void acpi_ec_block_transactions(void) { struct acpi_ec *ec = first_ec; @@ -489,6 +493,10 @@ void acpi_ec_unblock_transactions(void) mutex_lock(&ec->mutex); /* Allow transactions to be carried out again */ clear_bit(EC_FLAGS_BLOCKED, &ec->flags); + + if (EC_FLAGS_CLEAR_ON_RESUME) + acpi_ec_clear(ec); + mutex_unlock(&ec->mutex); } @@ -578,13 +586,18 @@ static void acpi_ec_run(void *cxt) kfree(handler); } -static int acpi_ec_sync_query(struct acpi_ec *ec) +static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data) { u8 value = 0; int status; struct acpi_ec_query_handler *handler, *copy; - if ((status = acpi_ec_query_unlocked(ec, &value))) + + status = acpi_ec_query_unlocked(ec, &value); + if (data) + *data = value; + if (status) return status; + list_for_each_entry(handler, &ec->list, node) { if (value == handler->query_bit) { /* have custom handler for this bit */ @@ -608,7 +621,7 @@ static void acpi_ec_gpe_query(void *ec_cxt) if (!ec) return; mutex_lock(&ec->mutex); - acpi_ec_sync_query(ec); + acpi_ec_sync_query(ec, NULL); mutex_unlock(&ec->mutex); } @@ -627,17 +640,14 @@ static int ec_check_sci(struct acpi_ec *ec, u8 state) static u32 acpi_ec_gpe_handler(acpi_handle gpe_device, u32 gpe_number, void *data) { + unsigned long flags; struct acpi_ec *ec = data; - u8 status = acpi_ec_read_status(ec); - - pr_debug("~~~> interrupt, status:0x%02x\n", status); - advance_transaction(ec, status); - if (ec_transaction_done(ec) && - (acpi_ec_read_status(ec) & ACPI_EC_FLAG_IBF) == 0) { + spin_lock_irqsave(&ec->lock, flags); + if (advance_transaction(ec)) wake_up(&ec->wait); - ec_check_sci(ec, acpi_ec_read_status(ec)); - } + spin_unlock_irqrestore(&ec->lock, flags); + ec_check_sci(ec, acpi_ec_read_status(ec)); return ACPI_INTERRUPT_HANDLED | ACPI_REENABLE_GPE; } @@ -779,9 +789,9 @@ static int ec_install_handlers(struct acpi_ec *ec) pr_err("Fail in evaluating the _REG object" " of EC device. Broken bios is suspected.\n"); } else { + acpi_disable_gpe(NULL, ec->gpe); acpi_remove_gpe_handler(NULL, ec->gpe, &acpi_ec_gpe_handler); - acpi_disable_gpe(NULL, ec->gpe); return -ENODEV; } } @@ -847,6 +857,13 @@ static int acpi_ec_add(struct acpi_device *device) /* EC is fully operational, allow queries */ clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags); + + /* Clear stale _Q events if hardware might require that */ + if (EC_FLAGS_CLEAR_ON_RESUME) { + mutex_lock(&ec->mutex); + acpi_ec_clear(ec); + mutex_unlock(&ec->mutex); + } return ret; } @@ -948,6 +965,30 @@ static int ec_enlarge_storm_threshold(const struct dmi_system_id *id) return 0; } +/* + * On some hardware it is necessary to clear events accumulated by the EC during + * sleep. These ECs stop reporting GPEs until they are manually polled, if too + * many events are accumulated. (e.g. Samsung Series 5/9 notebooks) + * + * https://bugzilla.kernel.org/show_bug.cgi?id=44161 + * + * Ideally, the EC should also be instructed NOT to accumulate events during + * sleep (which Windows seems to do somehow), but the interface to control this + * behaviour is not known at this time. + * + * Models known to be affected are Samsung 530Uxx/535Uxx/540Uxx/550Pxx/900Xxx, + * however it is very likely that other Samsung models are affected. + * + * On systems which don't accumulate _Q events during sleep, this extra check + * should be harmless. + */ +static int ec_clear_on_resume(const struct dmi_system_id *id) +{ + pr_debug("Detected system needing EC poll on resume.\n"); + EC_FLAGS_CLEAR_ON_RESUME = 1; + return 0; +} + static struct dmi_system_id ec_dmi_table[] __initdata = { { ec_skip_dsdt_scan, "Compal JFL92", { @@ -991,6 +1032,9 @@ static struct dmi_system_id ec_dmi_table[] __initdata = { ec_validate_ecdt, "ASUS hardware", { DMI_MATCH(DMI_SYS_VENDOR, "ASUSTek Computer Inc."), DMI_MATCH(DMI_PRODUCT_NAME, "L4R"),}, NULL}, + { + ec_clear_on_resume, "Samsung hardware", { + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD.")}, NULL}, {}, }; @@ -1025,8 +1069,10 @@ int __init acpi_ec_ecdt_probe(void) /* fall through */ } - if (EC_FLAGS_SKIP_DSDT_SCAN) + if (EC_FLAGS_SKIP_DSDT_SCAN) { + kfree(saved_ec); return -ENODEV; + } /* This workaround is needed only on some broken machines, * which require early EC, but fail to provide ECDT */ @@ -1064,6 +1110,7 @@ install: } error: kfree(boot_ec); + kfree(saved_ec); boot_ec = NULL; return -ENODEV; } diff --git a/drivers/acpi/ec_sys.c b/drivers/acpi/ec_sys.c index 4e7b798900f..b4c216bab22 100644 --- a/drivers/acpi/ec_sys.c +++ b/drivers/acpi/ec_sys.c @@ -105,7 +105,7 @@ static const struct file_operations acpi_ec_io_ops = { .llseek = default_llseek, }; -int acpi_ec_add_debugfs(struct acpi_ec *ec, unsigned int ec_device_count) +static int acpi_ec_add_debugfs(struct acpi_ec *ec, unsigned int ec_device_count) { struct dentry *dev_dir; char name[64]; diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c index cae3b387b86..ef2d730734d 100644 --- a/drivers/acpi/event.c +++ b/drivers/acpi/event.c @@ -12,7 +12,7 @@ #include <linux/init.h> #include <linux/poll.h> #include <linux/gfp.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <net/netlink.h> #include <net/genetlink.h> diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c index ba3da88cee4..8acf53e6296 100644 --- a/drivers/acpi/fan.c +++ b/drivers/acpi/fan.c @@ -29,8 +29,7 @@ #include <linux/types.h> #include <asm/uaccess.h> #include <linux/thermal.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #define PREFIX "ACPI: " @@ -56,8 +55,16 @@ MODULE_DEVICE_TABLE(acpi, fan_device_ids); #ifdef CONFIG_PM_SLEEP static int acpi_fan_suspend(struct device *dev); static int acpi_fan_resume(struct device *dev); +static struct dev_pm_ops acpi_fan_pm = { + .resume = acpi_fan_resume, + .freeze = acpi_fan_suspend, + .thaw = acpi_fan_resume, + .restore = acpi_fan_resume, +}; +#define FAN_PM_OPS_PTR (&acpi_fan_pm) +#else +#define FAN_PM_OPS_PTR NULL #endif -static SIMPLE_DEV_PM_OPS(acpi_fan_pm, acpi_fan_suspend, acpi_fan_resume); static struct acpi_driver acpi_fan_driver = { .name = "fan", @@ -67,7 +74,7 @@ static struct acpi_driver acpi_fan_driver = { .add = acpi_fan_add, .remove = acpi_fan_remove, }, - .drv.pm = &acpi_fan_pm, + .drv.pm = FAN_PM_OPS_PTR, }; /* thermal cooling device callbacks */ diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index a22a295edb6..f774c65ecb8 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -37,7 +37,7 @@ int register_acpi_bus_type(struct acpi_bus_type *type) { if (acpi_disabled) return -ENODEV; - if (type && type->match && type->find_device) { + if (type && type->match && type->find_companion) { down_write(&bus_type_sem); list_add_tail(&type->list, &bus_type_list); up_write(&bus_type_sem); @@ -82,109 +82,74 @@ static struct acpi_bus_type *acpi_get_bus_type(struct device *dev) #define FIND_CHILD_MIN_SCORE 1 #define FIND_CHILD_MAX_SCORE 2 -static acpi_status acpi_dev_present(acpi_handle handle, u32 lvl_not_used, - void *not_used, void **ret_p) -{ - struct acpi_device *adev = NULL; - - acpi_bus_get_device(handle, &adev); - if (adev) { - *ret_p = handle; - return AE_CTRL_TERMINATE; - } - return AE_OK; -} - -static int do_find_child_checks(acpi_handle handle, bool is_bridge) +static int find_child_checks(struct acpi_device *adev, bool check_children) { bool sta_present = true; unsigned long long sta; acpi_status status; - status = acpi_evaluate_integer(handle, "_STA", NULL, &sta); + status = acpi_evaluate_integer(adev->handle, "_STA", NULL, &sta); if (status == AE_NOT_FOUND) sta_present = false; else if (ACPI_FAILURE(status) || !(sta & ACPI_STA_DEVICE_ENABLED)) return -ENODEV; - if (is_bridge) { - void *test = NULL; + if (check_children && list_empty(&adev->children)) + return -ENODEV; - /* Check if this object has at least one child device. */ - acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, 1, - acpi_dev_present, NULL, NULL, &test); - if (!test) - return -ENODEV; - } return sta_present ? FIND_CHILD_MAX_SCORE : FIND_CHILD_MIN_SCORE; } -struct find_child_context { - u64 addr; - bool is_bridge; - acpi_handle ret; - int ret_score; -}; - -static acpi_status do_find_child(acpi_handle handle, u32 lvl_not_used, - void *data, void **not_used) -{ - struct find_child_context *context = data; - unsigned long long addr; - acpi_status status; - int score; - - status = acpi_evaluate_integer(handle, METHOD_NAME__ADR, NULL, &addr); - if (ACPI_FAILURE(status) || addr != context->addr) - return AE_OK; - - if (!context->ret) { - /* This is the first matching object. Save its handle. */ - context->ret = handle; - return AE_OK; - } - /* - * There is more than one matching object with the same _ADR value. - * That really is unexpected, so we are kind of beyond the scope of the - * spec here. We have to choose which one to return, though. - * - * First, check if the previously found object is good enough and return - * its handle if so. Second, check the same for the object that we've - * just found. - */ - if (!context->ret_score) { - score = do_find_child_checks(context->ret, context->is_bridge); - if (score == FIND_CHILD_MAX_SCORE) - return AE_CTRL_TERMINATE; - else - context->ret_score = score; - } - score = do_find_child_checks(handle, context->is_bridge); - if (score == FIND_CHILD_MAX_SCORE) { - context->ret = handle; - return AE_CTRL_TERMINATE; - } else if (score > context->ret_score) { - context->ret = handle; - context->ret_score = score; - } - return AE_OK; -} - -acpi_handle acpi_find_child(acpi_handle parent, u64 addr, bool is_bridge) +struct acpi_device *acpi_find_child_device(struct acpi_device *parent, + u64 address, bool check_children) { - if (parent) { - struct find_child_context context = { - .addr = addr, - .is_bridge = is_bridge, - }; - - acpi_walk_namespace(ACPI_TYPE_DEVICE, parent, 1, do_find_child, - NULL, &context, NULL); - return context.ret; + struct acpi_device *adev, *ret = NULL; + int ret_score = 0; + + if (!parent) + return NULL; + + list_for_each_entry(adev, &parent->children, node) { + unsigned long long addr; + acpi_status status; + int score; + + status = acpi_evaluate_integer(adev->handle, METHOD_NAME__ADR, + NULL, &addr); + if (ACPI_FAILURE(status) || addr != address) + continue; + + if (!ret) { + /* This is the first matching object. Save it. */ + ret = adev; + continue; + } + /* + * There is more than one matching device object with the same + * _ADR value. That really is unexpected, so we are kind of + * beyond the scope of the spec here. We have to choose which + * one to return, though. + * + * First, check if the previously found object is good enough + * and return it if so. Second, do the same for the object that + * we've just found. + */ + if (!ret_score) { + ret_score = find_child_checks(ret, check_children); + if (ret_score == FIND_CHILD_MAX_SCORE) + return ret; + } + score = find_child_checks(adev, check_children); + if (score == FIND_CHILD_MAX_SCORE) { + return adev; + } else if (score > ret_score) { + ret = adev; + ret_score = score; + } } - return NULL; + return ret; } -EXPORT_SYMBOL_GPL(acpi_find_child); +EXPORT_SYMBOL_GPL(acpi_find_child_device); static void acpi_physnode_link_name(char *buf, unsigned int node_id) { @@ -195,9 +160,8 @@ static void acpi_physnode_link_name(char *buf, unsigned int node_id) strcpy(buf, PHYSICAL_NODE_STRING); } -int acpi_bind_one(struct device *dev, acpi_handle handle) +int acpi_bind_one(struct device *dev, struct acpi_device *acpi_dev) { - struct acpi_device *acpi_dev = NULL; struct acpi_device_physical_node *physical_node, *pn; char physical_node_name[PHYSICAL_NODE_NAME_SIZE]; struct list_head *physnode_list; @@ -205,14 +169,12 @@ int acpi_bind_one(struct device *dev, acpi_handle handle) int retval = -EINVAL; if (ACPI_COMPANION(dev)) { - if (handle) { + if (acpi_dev) { dev_warn(dev, "ACPI companion already set\n"); return -EINVAL; } else { acpi_dev = ACPI_COMPANION(dev); } - } else { - acpi_bus_get_device(handle, &acpi_dev); } if (!acpi_dev) return -EINVAL; @@ -322,35 +284,34 @@ int acpi_unbind_one(struct device *dev) } EXPORT_SYMBOL_GPL(acpi_unbind_one); -void acpi_preset_companion(struct device *dev, acpi_handle parent, u64 addr) -{ - struct acpi_device *adev; - - if (!acpi_bus_get_device(acpi_get_child(parent, addr), &adev)) - ACPI_COMPANION_SET(dev, adev); -} -EXPORT_SYMBOL_GPL(acpi_preset_companion); - static int acpi_platform_notify(struct device *dev) { struct acpi_bus_type *type = acpi_get_bus_type(dev); - acpi_handle handle; + struct acpi_device *adev; int ret; ret = acpi_bind_one(dev, NULL); if (ret && type) { - ret = type->find_device(dev, &handle); - if (ret) { + struct acpi_device *adev; + + adev = type->find_companion(dev); + if (!adev) { DBG("Unable to get handle for %s\n", dev_name(dev)); + ret = -ENODEV; goto out; } - ret = acpi_bind_one(dev, handle); + ret = acpi_bind_one(dev, adev); if (ret) goto out; } + adev = ACPI_COMPANION(dev); + if (!adev) + goto out; if (type && type->setup) type->setup(dev); + else if (adev->handler && adev->handler->bind) + adev->handler->bind(dev); out: #if ACPI_GLUE_DEBUG @@ -369,11 +330,17 @@ static int acpi_platform_notify(struct device *dev) static int acpi_platform_notify_remove(struct device *dev) { + struct acpi_device *adev = ACPI_COMPANION(dev); struct acpi_bus_type *type; + if (!adev) + return 0; + type = acpi_get_bus_type(dev); if (type && type->cleanup) type->cleanup(dev); + else if (adev->handler && adev->handler->unbind) + adev->handler->unbind(dev); acpi_unbind_one(dev); return 0; diff --git a/drivers/acpi/hed.c b/drivers/acpi/hed.c index 13b1d39d7cd..aafe3ca829c 100644 --- a/drivers/acpi/hed.c +++ b/drivers/acpi/hed.c @@ -25,8 +25,6 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/acpi.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> #include <acpi/hed.h> static struct acpi_device_id acpi_hed_ids[] = { diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index a29739c0ba7..7de5b603f27 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -28,24 +28,22 @@ int init_acpi_device_notify(void); int acpi_scan_init(void); void acpi_pci_root_init(void); void acpi_pci_link_init(void); -void acpi_pci_root_hp_init(void); void acpi_processor_init(void); void acpi_platform_init(void); +void acpi_pnp_init(void); int acpi_sysfs_init(void); -#ifdef CONFIG_ACPI_CONTAINER void acpi_container_init(void); -#else -static inline void acpi_container_init(void) {} -#endif -#ifdef CONFIG_ACPI_DOCK -void acpi_dock_init(void); -#else -static inline void acpi_dock_init(void) {} -#endif -#ifdef CONFIG_ACPI_HOTPLUG_MEMORY void acpi_memory_hotplug_init(void); +#ifdef CONFIG_ACPI_DOCK +void register_dock_dependent_device(struct acpi_device *adev, + acpi_handle dshandle); +int dock_notify(struct acpi_device *adev, u32 event); +void acpi_dock_add(struct acpi_device *adev); #else -static inline void acpi_memory_hotplug_init(void) {} +static inline void register_dock_dependent_device(struct acpi_device *adev, + acpi_handle dshandle) {} +static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; } +static inline void acpi_dock_add(struct acpi_device *adev) {} #endif #ifdef CONFIG_X86 void acpi_cmos_rtc_init(void); @@ -67,11 +65,12 @@ int acpi_debugfs_init(void); #else static inline void acpi_debugfs_init(void) { return; } #endif -#ifdef CONFIG_X86_INTEL_LPSS void acpi_lpss_init(void); -#else -static inline void acpi_lpss_init(void) {} -#endif + +acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src); +bool acpi_queue_hotplug_work(struct work_struct *work); +void acpi_device_hotplug(struct acpi_device *adev, u32 src); +bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent); /* -------------------------------------------------------------------------- Device Node Initialization / Removal @@ -85,9 +84,10 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, int type, unsigned long long sta); void acpi_device_add_finalize(struct acpi_device *device); void acpi_free_pnp_ids(struct acpi_device_pnp *pnp); -int acpi_bind_one(struct device *dev, acpi_handle handle); +int acpi_bind_one(struct device *dev, struct acpi_device *adev); int acpi_unbind_one(struct device *dev); -void acpi_bus_device_eject(void *data, u32 ost_src); +bool acpi_device_is_present(struct acpi_device *adev); +bool acpi_device_is_battery(struct acpi_device *adev); /* -------------------------------------------------------------------------- Power Resource @@ -105,6 +105,8 @@ int acpi_power_get_inferred_state(struct acpi_device *device, int *state); int acpi_power_on_resources(struct acpi_device *device, int state); int acpi_power_transition(struct acpi_device *device, int state); +int acpi_device_update_power(struct acpi_device *device, int *state_p); + int acpi_wakeup_device_init(void); void acpi_early_processor_set_pdc(void); @@ -127,12 +129,21 @@ struct acpi_ec { extern struct acpi_ec *first_ec; +/* If we find an EC via the ECDT, we need to keep a ptr to its context */ +/* External interfaces use first EC only, so remember */ +typedef int (*acpi_ec_query_func) (void *data); + int acpi_ec_init(void); int acpi_ec_ecdt_probe(void); int acpi_boot_ec_enable(void); void acpi_ec_block_transactions(void); void acpi_ec_unblock_transactions(void); void acpi_ec_unblock_transactions_early(void); +int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, + acpi_handle handle, acpi_ec_query_func func, + void *data); +void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit); + /*-------------------------------------------------------------------------- Suspend/Resume @@ -158,8 +169,7 @@ static inline void suspend_nvs_restore(void) {} -------------------------------------------------------------------------- */ struct platform_device; -int acpi_create_platform_device(struct acpi_device *adev, - const struct acpi_device_id *id); +struct platform_device *acpi_create_platform_device(struct acpi_device *adev); /*-------------------------------------------------------------------------- Video diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c index a2343a1d9e0..24b5476449a 100644 --- a/drivers/acpi/numa.c +++ b/drivers/acpi/numa.c @@ -29,7 +29,6 @@ #include <linux/errno.h> #include <linux/acpi.h> #include <linux/numa.h> -#include <acpi/acpi_bus.h> #define PREFIX "ACPI: " @@ -61,7 +60,7 @@ int node_to_pxm(int node) return node_to_pxm_map[node]; } -void __acpi_map_pxm_to_node(int pxm, int node) +static void __acpi_map_pxm_to_node(int pxm, int node) { if (pxm_to_node_map[pxm] == NUMA_NO_NODE || node < pxm_to_node_map[pxm]) pxm_to_node_map[pxm] = node; @@ -194,7 +193,7 @@ static int __init acpi_parse_slit(struct acpi_table_header *table) return 0; } -void __init __attribute__ ((weak)) +void __init __weak acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa) { printk(KERN_WARNING PREFIX @@ -315,7 +314,7 @@ int __init acpi_numa_init(void) return 0; } -int acpi_get_pxm(acpi_handle h) +static int acpi_get_pxm(acpi_handle h) { unsigned long long pxm; acpi_status status; @@ -332,14 +331,14 @@ int acpi_get_pxm(acpi_handle h) return -1; } -int acpi_get_node(acpi_handle *handle) +int acpi_get_node(acpi_handle handle) { - int pxm, node = NUMA_NO_NODE; + int pxm; pxm = acpi_get_pxm(handle); - if (pxm >= 0 && pxm < MAX_PXM_DOMAINS) - node = acpi_map_pxm_to_node(pxm); + if (pxm < 0 || pxm >= MAX_PXM_DOMAINS) + return NUMA_NO_NODE; - return node; + return acpi_map_pxm_to_node(pxm); } EXPORT_SYMBOL(acpi_get_node); diff --git a/drivers/acpi/nvs.c b/drivers/acpi/nvs.c index 386a9fe497b..85287b8fe3a 100644 --- a/drivers/acpi/nvs.c +++ b/drivers/acpi/nvs.c @@ -12,7 +12,8 @@ #include <linux/mm.h> #include <linux/slab.h> #include <linux/acpi.h> -#include <linux/acpi_io.h> + +#include "internal.h" /* ACPI NVS regions, APEI may use it */ @@ -138,8 +139,8 @@ void suspend_nvs_free(void) iounmap(entry->kaddr); entry->unmap = false; } else { - acpi_os_unmap_memory(entry->kaddr, - entry->size); + acpi_os_unmap_iomem(entry->kaddr, + entry->size); } entry->kaddr = NULL; } diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 54a20ff4b86..bad25b070fe 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -39,7 +39,6 @@ #include <linux/workqueue.h> #include <linux/nmi.h> #include <linux/acpi.h> -#include <linux/acpi_io.h> #include <linux/efi.h> #include <linux/ioport.h> #include <linux/list.h> @@ -49,14 +48,11 @@ #include <asm/io.h> #include <asm/uaccess.h> -#include <acpi/acpi.h> -#include <acpi/acpi_bus.h> -#include <acpi/processor.h> #include "internal.h" #define _COMPONENT ACPI_OS_SERVICES ACPI_MODULE_NAME("osl"); -#define PREFIX "ACPI: " + struct acpi_os_dpc { acpi_osd_exec_callback function; void *context; @@ -239,7 +235,8 @@ void acpi_os_vprintf(const char *fmt, va_list args) static unsigned long acpi_rsdp; static int __init setup_acpi_rsdp(char *arg) { - acpi_rsdp = simple_strtoul(arg, NULL, 16); + if (kstrtoul(arg, 16, &acpi_rsdp)) + return -EINVAL; return 0; } early_param("acpi_rsdp", setup_acpi_rsdp); @@ -359,7 +356,7 @@ static void acpi_unmap(acpi_physical_address pg_off, void __iomem *vaddr) } void __iomem *__init_refok -acpi_os_map_memory(acpi_physical_address phys, acpi_size size) +acpi_os_map_iomem(acpi_physical_address phys, acpi_size size) { struct acpi_ioremap *map; void __iomem *virt; @@ -405,10 +402,17 @@ acpi_os_map_memory(acpi_physical_address phys, acpi_size size) list_add_tail_rcu(&map->list, &acpi_ioremaps); - out: +out: mutex_unlock(&acpi_ioremap_lock); return map->virt + (phys - map->phys); } +EXPORT_SYMBOL_GPL(acpi_os_map_iomem); + +void *__init_refok +acpi_os_map_memory(acpi_physical_address phys, acpi_size size) +{ + return (void *)acpi_os_map_iomem(phys, size); +} EXPORT_SYMBOL_GPL(acpi_os_map_memory); static void acpi_os_drop_map_ref(struct acpi_ioremap *map) @@ -426,7 +430,7 @@ static void acpi_os_map_cleanup(struct acpi_ioremap *map) } } -void __ref acpi_os_unmap_memory(void __iomem *virt, acpi_size size) +void __ref acpi_os_unmap_iomem(void __iomem *virt, acpi_size size) { struct acpi_ioremap *map; @@ -447,6 +451,12 @@ void __ref acpi_os_unmap_memory(void __iomem *virt, acpi_size size) acpi_os_map_cleanup(map); } +EXPORT_SYMBOL_GPL(acpi_os_unmap_iomem); + +void __ref acpi_os_unmap_memory(void *virt, acpi_size size) +{ + return acpi_os_unmap_iomem((void __iomem *)virt, size); +} EXPORT_SYMBOL_GPL(acpi_os_unmap_memory); void __init early_acpi_os_unmap_memory(void __iomem *virt, acpi_size size) @@ -468,7 +478,7 @@ int acpi_os_map_generic_address(struct acpi_generic_address *gas) if (!addr || !gas->bit_width) return -EINVAL; - virt = acpi_os_map_memory(addr, gas->bit_width / 8); + virt = acpi_os_map_iomem(addr, gas->bit_width / 8); if (!virt) return -EIO; @@ -544,7 +554,7 @@ static u64 acpi_tables_addr; static int all_tables_size; /* Copied from acpica/tbutils.c:acpi_tb_checksum() */ -u8 __init acpi_table_checksum(u8 *buffer, u32 length) +static u8 __init acpi_table_checksum(u8 *buffer, u32 length) { u8 sum = 0; u8 *end = buffer + length; @@ -1172,8 +1182,7 @@ void acpi_os_wait_events_complete(void) struct acpi_hp_work { struct work_struct work; - acpi_hp_callback func; - void *data; + struct acpi_device *adev; u32 src; }; @@ -1182,25 +1191,24 @@ static void acpi_hotplug_work_fn(struct work_struct *work) struct acpi_hp_work *hpw = container_of(work, struct acpi_hp_work, work); acpi_os_wait_events_complete(); - hpw->func(hpw->data, hpw->src); + acpi_device_hotplug(hpw->adev, hpw->src); kfree(hpw); } -acpi_status acpi_hotplug_execute(acpi_hp_callback func, void *data, u32 src) +acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src) { struct acpi_hp_work *hpw; ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Scheduling function [%p(%p, %u)] for deferred execution.\n", - func, data, src)); + "Scheduling hotplug event (%p, %u) for deferred execution.\n", + adev, src)); hpw = kmalloc(sizeof(*hpw), GFP_KERNEL); if (!hpw) return AE_NO_MEMORY; INIT_WORK(&hpw->work, acpi_hotplug_work_fn); - hpw->func = func; - hpw->data = data; + hpw->adev = adev; hpw->src = src; /* * We can't run hotplug code in kacpid_wq/kacpid_notify_wq etc., because @@ -1215,16 +1223,19 @@ acpi_status acpi_hotplug_execute(acpi_hp_callback func, void *data, u32 src) return AE_OK; } +bool acpi_queue_hotplug_work(struct work_struct *work) +{ + return queue_work(kacpi_hotplug_wq, work); +} acpi_status acpi_os_create_semaphore(u32 max_units, u32 initial_units, acpi_handle * handle) { struct semaphore *sem = NULL; - sem = acpi_os_allocate(sizeof(struct semaphore)); + sem = acpi_os_allocate_zeroed(sizeof(struct semaphore)); if (!sem) return AE_NO_MEMORY; - memset(sem, 0, sizeof(struct semaphore)); sema_init(sem, initial_units); @@ -1282,7 +1293,7 @@ acpi_status acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 timeout) jiffies = MAX_SCHEDULE_TIMEOUT; else jiffies = msecs_to_jiffies(timeout); - + ret = down_timeout(sem, jiffies); if (ret) status = AE_TIME; @@ -1539,17 +1550,21 @@ static int __init osi_setup(char *str) __setup("acpi_osi=", osi_setup); -/* enable serialization to combat AE_ALREADY_EXISTS errors */ -static int __init acpi_serialize_setup(char *str) +/* + * Disable the auto-serialization of named objects creation methods. + * + * This feature is enabled by default. It marks the AML control methods + * that contain the opcodes to create named objects as "Serialized". + */ +static int __init acpi_no_auto_serialize_setup(char *str) { - printk(KERN_INFO PREFIX "serialize enabled\n"); - - acpi_gbl_all_methods_serialized = TRUE; + acpi_gbl_auto_serialize_methods = FALSE; + pr_info("ACPI: auto-serialization disabled\n"); return 1; } -__setup("acpi_serialize", acpi_serialize_setup); +__setup("acpi_no_auto_serialize", acpi_no_auto_serialize_setup); /* Check of resource interference between native drivers and ACPI * OperationRegions (SystemIO and System Memory only). @@ -1769,16 +1784,26 @@ acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object) } #endif -static int __init acpi_no_auto_ssdt_setup(char *s) +static int __init acpi_no_static_ssdt_setup(char *s) { - printk(KERN_NOTICE PREFIX "SSDT auto-load disabled\n"); + acpi_gbl_disable_ssdt_table_install = TRUE; + pr_info("ACPI: static SSDT installation disabled\n"); - acpi_gbl_disable_ssdt_table_load = TRUE; + return 0; +} + +early_param("acpi_no_static_ssdt", acpi_no_static_ssdt_setup); - return 1; +static int __init acpi_disable_return_repair(char *s) +{ + printk(KERN_NOTICE PREFIX + "ACPI: Predefined validation mechanism disabled\n"); + acpi_gbl_disable_auto_repair = TRUE; + + return 1; } -__setup("acpi_no_auto_ssdt", acpi_no_auto_ssdt_setup); +__setup("acpica_no_return_repair", acpi_disable_return_repair); acpi_status __init acpi_os_initialize(void) { @@ -1786,6 +1811,16 @@ acpi_status __init acpi_os_initialize(void) acpi_os_map_generic_address(&acpi_gbl_FADT.xpm1b_event_block); acpi_os_map_generic_address(&acpi_gbl_FADT.xgpe0_block); acpi_os_map_generic_address(&acpi_gbl_FADT.xgpe1_block); + if (acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER) { + /* + * Use acpi_os_map_generic_address to pre-map the reset + * register if it's in system memory. + */ + int rv; + + rv = acpi_os_map_generic_address(&acpi_gbl_FADT.reset_register); + pr_debug(PREFIX "%s: map reset_reg status %d\n", __func__, rv); + } return AE_OK; } @@ -1794,7 +1829,7 @@ acpi_status __init acpi_os_initialize1(void) { kacpid_wq = alloc_workqueue("kacpid", 0, 1); kacpi_notify_wq = alloc_workqueue("kacpi_notify", 0, 1); - kacpi_hotplug_wq = alloc_workqueue("kacpi_hotplug", 0, 1); + kacpi_hotplug_wq = alloc_ordered_workqueue("kacpi_hotplug", 0); BUG_ON(!kacpid_wq); BUG_ON(!kacpi_notify_wq); BUG_ON(!kacpi_hotplug_wq); @@ -1814,6 +1849,8 @@ acpi_status acpi_os_terminate(void) acpi_os_unmap_generic_address(&acpi_gbl_FADT.xgpe0_block); acpi_os_unmap_generic_address(&acpi_gbl_FADT.xpm1b_event_block); acpi_os_unmap_generic_address(&acpi_gbl_FADT.xpm1a_event_block); + if (acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER) + acpi_os_unmap_generic_address(&acpi_gbl_FADT.reset_register); destroy_workqueue(kacpid_wq); destroy_workqueue(kacpi_notify_wq); diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c index 41c5e1b799e..9c62340c236 100644 --- a/drivers/acpi/pci_irq.c +++ b/drivers/acpi/pci_irq.c @@ -37,8 +37,6 @@ #include <linux/pci.h> #include <linux/acpi.h> #include <linux/slab.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> #define PREFIX "ACPI: " @@ -372,6 +370,30 @@ static struct acpi_prt_entry *acpi_pci_irq_lookup(struct pci_dev *dev, int pin) return NULL; } +#if IS_ENABLED(CONFIG_ISA) || IS_ENABLED(CONFIG_EISA) +static int acpi_isa_register_gsi(struct pci_dev *dev) +{ + u32 dev_gsi; + + /* Interrupt Line values above 0xF are forbidden */ + if (dev->irq > 0 && (dev->irq <= 0xF) && + (acpi_isa_irq_to_gsi(dev->irq, &dev_gsi) == 0)) { + dev_warn(&dev->dev, "PCI INT %c: no GSI - using ISA IRQ %d\n", + pin_name(dev->pin), dev->irq); + acpi_register_gsi(&dev->dev, dev_gsi, + ACPI_LEVEL_SENSITIVE, + ACPI_ACTIVE_LOW); + return 0; + } + return -EINVAL; +} +#else +static inline int acpi_isa_register_gsi(struct pci_dev *dev) +{ + return -ENODEV; +} +#endif + int acpi_pci_irq_enable(struct pci_dev *dev) { struct acpi_prt_entry *entry; @@ -418,20 +440,11 @@ int acpi_pci_irq_enable(struct pci_dev *dev) * driver reported one, then use it. Exit in any case. */ if (gsi < 0) { - u32 dev_gsi; - /* Interrupt Line values above 0xF are forbidden */ - if (dev->irq > 0 && (dev->irq <= 0xF) && - (acpi_isa_irq_to_gsi(dev->irq, &dev_gsi) == 0)) { - dev_warn(&dev->dev, "PCI INT %c: no GSI - using ISA IRQ %d\n", - pin_name(pin), dev->irq); - acpi_register_gsi(&dev->dev, dev_gsi, - ACPI_LEVEL_SENSITIVE, - ACPI_ACTIVE_LOW); - } else { + if (acpi_isa_register_gsi(dev)) dev_warn(&dev->dev, "PCI INT %c: no GSI\n", pin_name(pin)); - } + kfree(entry); return 0; } diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c index 2652a614dee..cfd7581cc19 100644 --- a/drivers/acpi/pci_link.c +++ b/drivers/acpi/pci_link.c @@ -39,11 +39,9 @@ #include <linux/pci.h> #include <linux/mutex.h> #include <linux/slab.h> +#include <linux/acpi.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> - -#define PREFIX "ACPI: " +#include "internal.h" #define _COMPONENT ACPI_PCI_COMPONENT ACPI_MODULE_NAME("pci_link"); diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 20360e480bd..d388f13d48b 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -35,14 +35,10 @@ #include <linux/pci-aspm.h> #include <linux/acpi.h> #include <linux/slab.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> -#include <acpi/apei.h> +#include <acpi/apei.h> /* for acpi_hest_init() */ #include "internal.h" -#define PREFIX "ACPI: " - #define _COMPONENT ACPI_PCI_COMPONENT ACPI_MODULE_NAME("pci_root"); #define ACPI_PCI_ROOT_CLASS "pci_bridge" @@ -51,6 +47,12 @@ static int acpi_pci_root_add(struct acpi_device *device, const struct acpi_device_id *not_used); static void acpi_pci_root_remove(struct acpi_device *device); +static int acpi_pci_root_scan_dependent(struct acpi_device *adev) +{ + acpiphp_check_host_bridge(adev); + return 0; +} + #define ACPI_PCIE_REQ_SUPPORT (OSC_PCI_EXT_CONFIG_SUPPORT \ | OSC_PCI_ASPM_SUPPORT \ | OSC_PCI_CLOCK_PM_SUPPORT \ @@ -66,7 +68,8 @@ static struct acpi_scan_handler pci_root_handler = { .attach = acpi_pci_root_add, .detach = acpi_pci_root_remove, .hotplug = { - .ignore = true, + .enabled = true, + .scan_dependent = acpi_pci_root_scan_dependent, }, }; @@ -599,7 +602,9 @@ static int acpi_pci_root_add(struct acpi_device *device, pci_assign_unassigned_root_bus_resources(root->bus); } + pci_lock_rescan_remove(); pci_bus_add_devices(root->bus); + pci_unlock_rescan_remove(); return 1; end: @@ -611,6 +616,8 @@ static void acpi_pci_root_remove(struct acpi_device *device) { struct acpi_pci_root *root = acpi_driver_data(device); + pci_lock_rescan_remove(); + pci_stop_root_bus(root->bus); device_set_run_wake(root->bus->bridge, false); @@ -618,122 +625,17 @@ static void acpi_pci_root_remove(struct acpi_device *device) pci_remove_root_bus(root->bus); + pci_unlock_rescan_remove(); + kfree(root); } void __init acpi_pci_root_init(void) { acpi_hest_init(); - - if (!acpi_pci_disabled) { - pci_acpi_crs_quirks(); - acpi_scan_add_handler(&pci_root_handler); - } -} -/* Support root bridge hotplug */ - -static void handle_root_bridge_insertion(acpi_handle handle) -{ - struct acpi_device *device; - - if (!acpi_bus_get_device(handle, &device)) { - dev_printk(KERN_DEBUG, &device->dev, - "acpi device already exists; ignoring notify\n"); - return; - } - - if (acpi_bus_scan(handle)) - acpi_handle_err(handle, "cannot add bridge to acpi list\n"); -} - -static void hotplug_event_root(void *data, u32 type) -{ - acpi_handle handle = data; - struct acpi_pci_root *root; - - acpi_scan_lock_acquire(); - - root = acpi_pci_find_root(handle); - - switch (type) { - case ACPI_NOTIFY_BUS_CHECK: - /* bus enumerate */ - acpi_handle_printk(KERN_DEBUG, handle, - "Bus check notify on %s\n", __func__); - if (root) - acpiphp_check_host_bridge(handle); - else - handle_root_bridge_insertion(handle); - - break; - - case ACPI_NOTIFY_DEVICE_CHECK: - /* device check */ - acpi_handle_printk(KERN_DEBUG, handle, - "Device check notify on %s\n", __func__); - if (!root) - handle_root_bridge_insertion(handle); - break; - - case ACPI_NOTIFY_EJECT_REQUEST: - /* request device eject */ - acpi_handle_printk(KERN_DEBUG, handle, - "Device eject notify on %s\n", __func__); - if (!root) - break; - - get_device(&root->device->dev); - - acpi_scan_lock_release(); - - acpi_bus_device_eject(root->device, ACPI_NOTIFY_EJECT_REQUEST); + if (acpi_pci_disabled) return; - default: - acpi_handle_warn(handle, - "notify_handler: unknown event type 0x%x\n", - type); - break; - } - - acpi_scan_lock_release(); -} - -static void handle_hotplug_event_root(acpi_handle handle, u32 type, - void *context) -{ - acpi_hotplug_execute(hotplug_event_root, handle, type); -} - -static acpi_status __init -find_root_bridges(acpi_handle handle, u32 lvl, void *context, void **rv) -{ - acpi_status status; - int *count = (int *)context; - - if (!acpi_is_root_bridge(handle)) - return AE_OK; - - (*count)++; - - status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY, - handle_hotplug_event_root, NULL); - if (ACPI_FAILURE(status)) - acpi_handle_printk(KERN_DEBUG, handle, - "notify handler is not installed, exit status: %u\n", - (unsigned int)status); - else - acpi_handle_printk(KERN_DEBUG, handle, - "notify handler is installed\n"); - - return AE_OK; -} - -void __init acpi_pci_root_hp_init(void) -{ - int num = 0; - - acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, find_root_bridges, NULL, &num, NULL); - printk(KERN_DEBUG "Found %d acpi root devices\n", num); + pci_acpi_crs_quirks(); + acpi_scan_add_handler_with_hotplug(&pci_root_handler, "pci_root"); } diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c index d678a180ca2..139d9e47937 100644 --- a/drivers/acpi/pci_slot.c +++ b/drivers/acpi/pci_slot.c @@ -35,6 +35,7 @@ #include <linux/pci.h> #include <linux/acpi.h> #include <linux/dmi.h> +#include <linux/pci-acpi.h> static bool debug; static int check_sta_before_sun; diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index c2ad391d804..e0bcfb642b5 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -42,13 +42,10 @@ #include <linux/slab.h> #include <linux/pm_runtime.h> #include <linux/sysfs.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include "sleep.h" #include "internal.h" -#define PREFIX "ACPI: " - #define _COMPONENT ACPI_POWER_COMPONENT ACPI_MODULE_NAME("power"); #define ACPI_POWER_CLASS "power_resource" diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c index 6a5b152ad4d..75c28eae886 100644 --- a/drivers/acpi/proc.c +++ b/drivers/acpi/proc.c @@ -3,12 +3,11 @@ #include <linux/export.h> #include <linux/suspend.h> #include <linux/bcd.h> +#include <linux/acpi.h> #include <asm/uaccess.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> - #include "sleep.h" +#include "internal.h" #define _COMPONENT ACPI_SYSTEM_COMPONENT @@ -61,7 +60,7 @@ acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset) seq_printf(seq, "%c%-8s %s:%s\n", dev->wakeup.flags.run_wake ? '*' : ' ', (device_may_wakeup(&dev->dev) || - (ldev && device_may_wakeup(ldev))) ? + device_may_wakeup(ldev)) ? "enabled" : "disabled", ldev->bus ? ldev->bus->name : "no-bus", dev_name(ldev)); diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index b3171f30b31..71e2065639a 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -10,34 +10,14 @@ #include <linux/export.h> #include <linux/dmi.h> #include <linux/slab.h> - -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <acpi/processor.h> #include "internal.h" -#define PREFIX "ACPI: " #define _COMPONENT ACPI_PROCESSOR_COMPONENT ACPI_MODULE_NAME("processor_core"); -static int __init set_no_mwait(const struct dmi_system_id *id) -{ - printk(KERN_NOTICE PREFIX "%s detected - " - "disabling mwait for CPU C-states\n", id->ident); - boot_option_idle_override = IDLE_NOMWAIT; - return 0; -} - -static struct dmi_system_id processor_idle_dmi_table[] __initdata = { - { - set_no_mwait, "Extensa 5220", { - DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"), - DMI_MATCH(DMI_SYS_VENDOR, "Acer"), - DMI_MATCH(DMI_PRODUCT_VERSION, "0100"), - DMI_MATCH(DMI_BOARD_NAME, "Columbia") }, NULL}, - {}, -}; - static int map_lapic_id(struct acpi_subtable_header *entry, u32 acpi_id, int *apic_id) { @@ -45,13 +25,13 @@ static int map_lapic_id(struct acpi_subtable_header *entry, (struct acpi_madt_local_apic *)entry; if (!(lapic->lapic_flags & ACPI_MADT_ENABLED)) - return 0; + return -ENODEV; if (lapic->processor_id != acpi_id) - return 0; + return -EINVAL; *apic_id = lapic->id; - return 1; + return 0; } static int map_x2apic_id(struct acpi_subtable_header *entry, @@ -61,14 +41,14 @@ static int map_x2apic_id(struct acpi_subtable_header *entry, (struct acpi_madt_local_x2apic *)entry; if (!(apic->lapic_flags & ACPI_MADT_ENABLED)) - return 0; + return -ENODEV; if (device_declaration && (apic->uid == acpi_id)) { *apic_id = apic->local_apic_id; - return 1; + return 0; } - return 0; + return -EINVAL; } static int map_lsapic_id(struct acpi_subtable_header *entry, @@ -78,16 +58,16 @@ static int map_lsapic_id(struct acpi_subtable_header *entry, (struct acpi_madt_local_sapic *)entry; if (!(lsapic->lapic_flags & ACPI_MADT_ENABLED)) - return 0; + return -ENODEV; if (device_declaration) { if ((entry->length < 16) || (lsapic->uid != acpi_id)) - return 0; + return -EINVAL; } else if (lsapic->processor_id != acpi_id) - return 0; + return -EINVAL; *apic_id = (lsapic->id << 8) | lsapic->eid; - return 1; + return 0; } static int map_madt_entry(int type, u32 acpi_id) @@ -117,13 +97,13 @@ static int map_madt_entry(int type, u32 acpi_id) struct acpi_subtable_header *header = (struct acpi_subtable_header *)entry; if (header->type == ACPI_MADT_TYPE_LOCAL_APIC) { - if (map_lapic_id(header, acpi_id, &apic_id)) + if (!map_lapic_id(header, acpi_id, &apic_id)) break; } else if (header->type == ACPI_MADT_TYPE_LOCAL_X2APIC) { - if (map_x2apic_id(header, type, acpi_id, &apic_id)) + if (!map_x2apic_id(header, type, acpi_id, &apic_id)) break; } else if (header->type == ACPI_MADT_TYPE_LOCAL_SAPIC) { - if (map_lsapic_id(header, type, acpi_id, &apic_id)) + if (!map_lsapic_id(header, type, acpi_id, &apic_id)) break; } entry += header->length; @@ -324,7 +304,7 @@ static struct acpi_object_list *acpi_processor_alloc_pdc(void) * _PDC is required for a BIOS-OS handshake for most of the newer * ACPI processor features. */ -static int +static acpi_status acpi_processor_eval_pdc(acpi_handle handle, struct acpi_object_list *pdc_in) { acpi_status status = AE_OK; @@ -380,16 +360,43 @@ early_init_pdc(acpi_handle handle, u32 lvl, void *context, void **rv) return AE_OK; } -void __init acpi_early_processor_set_pdc(void) +#if defined(CONFIG_X86) || defined(CONFIG_IA64) +static int __init set_no_mwait(const struct dmi_system_id *id) +{ + pr_notice(PREFIX "%s detected - disabling mwait for CPU C-states\n", + id->ident); + boot_option_idle_override = IDLE_NOMWAIT; + return 0; +} + +static struct dmi_system_id processor_idle_dmi_table[] __initdata = { + { + set_no_mwait, "Extensa 5220", { + DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"), + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_VERSION, "0100"), + DMI_MATCH(DMI_BOARD_NAME, "Columbia") }, NULL}, + {}, +}; + +static void __init processor_dmi_check(void) { /* * Check whether the system is DMI table. If yes, OSPM * should not use mwait for CPU-states. */ dmi_check_system(processor_idle_dmi_table); +} +#else +static inline void processor_dmi_check(void) {} +#endif + +void __init acpi_early_processor_set_pdc(void) +{ + processor_dmi_check(); acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, early_init_pdc, NULL, NULL, NULL); - acpi_get_devices("ACPI0007", early_init_pdc, NULL, NULL); + acpi_get_devices(ACPI_PROCESSOR_DEVICE_HID, early_init_pdc, NULL, NULL); } diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index 146ab7e2b81..4fcbd670415 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -41,8 +41,6 @@ #include "internal.h" -#define PREFIX "ACPI: " - #define ACPI_PROCESSOR_NOTIFY_PERFORMANCE 0x80 #define ACPI_PROCESSOR_NOTIFY_POWER 0x81 #define ACPI_PROCESSOR_NOTIFY_THROTTLING 0x82 @@ -123,6 +121,13 @@ static int acpi_cpu_soft_notify(struct notifier_block *nfb, struct acpi_processor *pr = per_cpu(processors, cpu); struct acpi_device *device; + /* + * CPU_STARTING and CPU_DYING must not sleep. Return here since + * acpi_bus_get_device() may sleep. + */ + if (action == CPU_STARTING || action == CPU_DYING) + return NOTIFY_DONE; + if (!pr || acpi_bus_get_device(pr->handle, &device)) return NOTIFY_DONE; @@ -224,9 +229,9 @@ static int __acpi_processor_start(struct acpi_device *device) static int acpi_processor_start(struct device *dev) { - struct acpi_device *device; + struct acpi_device *device = ACPI_COMPANION(dev); - if (acpi_bus_get_device(ACPI_HANDLE(dev), &device)) + if (!device) return -ENODEV; return __acpi_processor_start(device); @@ -234,10 +239,10 @@ static int acpi_processor_start(struct device *dev) static int acpi_processor_stop(struct device *dev) { - struct acpi_device *device; + struct acpi_device *device = ACPI_COMPANION(dev); struct acpi_processor *pr; - if (acpi_bus_get_device(ACPI_HANDLE(dev), &device)) + if (!device) return 0; acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index f90c56c8379..3dca36d4ad2 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -35,6 +35,7 @@ #include <linux/clockchips.h> #include <linux/cpuidle.h> #include <linux/syscore_ops.h> +#include <acpi/processor.h> /* * Include the apic definitions for x86 to have the APIC timer related defines @@ -46,9 +47,6 @@ #include <asm/apic.h> #endif -#include <acpi/acpi_bus.h> -#include <acpi/processor.h> - #define PREFIX "ACPI: " #define ACPI_PROCESSOR_CLASS "processor" @@ -213,7 +211,7 @@ static int acpi_processor_suspend(void) static void acpi_processor_resume(void) { - u32 resumed_bm_rld; + u32 resumed_bm_rld = 0; acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_RLD, &resumed_bm_rld); if (resumed_bm_rld == saved_bm_rld) @@ -598,7 +596,7 @@ static int acpi_processor_power_verify(struct acpi_processor *pr) case ACPI_STATE_C2: if (!cx->address) break; - cx->valid = 1; + cx->valid = 1; break; case ACPI_STATE_C3: @@ -780,6 +778,13 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev, if (unlikely(!pr)) return -EINVAL; +#ifdef CONFIG_HOTPLUG_CPU + if ((cx->type != ACPI_STATE_C1) && (num_online_cpus() > 1) && + !pr->flags.has_cst && + !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED)) + return acpi_idle_enter_c1(dev, drv, CPUIDLE_DRIVER_STATE_START); +#endif + /* * Must be done before busmaster disable as we might need to * access HPET ! @@ -821,6 +826,13 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, if (unlikely(!pr)) return -EINVAL; +#ifdef CONFIG_HOTPLUG_CPU + if ((cx->type != ACPI_STATE_C1) && (num_online_cpus() > 1) && + !pr->flags.has_cst && + !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED)) + return acpi_idle_enter_c1(dev, drv, CPUIDLE_DRIVER_STATE_START); +#endif + if (!cx->bm_sts_skip && acpi_idle_bm_check()) { if (drv->safe_state_index >= 0) { return drv->states[drv->safe_state_index].enter(dev, @@ -917,12 +929,6 @@ static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr, if (!cx->valid) continue; -#ifdef CONFIG_HOTPLUG_CPU - if ((cx->type != ACPI_STATE_C1) && (num_online_cpus() > 1) && - !pr->flags.has_cst && - !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED)) - continue; -#endif per_cpu(acpi_cstate[count], dev->cpu) = cx; count++; @@ -930,8 +936,6 @@ static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr, break; } - dev->state_count = count; - if (!count) return -EINVAL; @@ -972,13 +976,6 @@ static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr) if (!cx->valid) continue; -#ifdef CONFIG_HOTPLUG_CPU - if ((cx->type != ACPI_STATE_C1) && (num_online_cpus() > 1) && - !pr->flags.has_cst && - !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED)) - continue; -#endif - state = &drv->states[count]; snprintf(state->name, CPUIDLE_NAME_LEN, "C%d", i); strncpy(state->desc, cx->desc, CPUIDLE_DESC_LEN); diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c index 60a7c28fc16..cfc8aba72f8 100644 --- a/drivers/acpi/processor_perflib.c +++ b/drivers/acpi/processor_perflib.c @@ -31,15 +31,12 @@ #include <linux/init.h> #include <linux/cpufreq.h> #include <linux/slab.h> - +#include <linux/acpi.h> +#include <acpi/processor.h> #ifdef CONFIG_X86 #include <asm/cpufeature.h> #endif -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> -#include <acpi/processor.h> - #define PREFIX "ACPI: " #define ACPI_PROCESSOR_CLASS "processor" @@ -159,17 +156,9 @@ static int acpi_processor_get_platform_limit(struct acpi_processor *pr) */ static void acpi_processor_ppc_ost(acpi_handle handle, int status) { - union acpi_object params[2] = { - {.type = ACPI_TYPE_INTEGER,}, - {.type = ACPI_TYPE_INTEGER,}, - }; - struct acpi_object_list arg_list = {2, params}; - - if (acpi_has_method(handle, "_OST")) { - params[0].integer.value = ACPI_PROCESSOR_NOTIFY_PERFORMANCE; - params[1].integer.value = status; - acpi_evaluate_object(handle, "_OST", &arg_list, NULL); - } + if (acpi_has_method(handle, "_OST")) + acpi_evaluate_ost(handle, ACPI_PROCESSOR_NOTIFY_PERFORMANCE, + status, NULL); } int acpi_processor_ppc_has_changed(struct acpi_processor *pr, int event_flag) diff --git a/drivers/acpi/processor_thermal.c b/drivers/acpi/processor_thermal.c index d1d2e7fb5b3..e003663b2f8 100644 --- a/drivers/acpi/processor_thermal.c +++ b/drivers/acpi/processor_thermal.c @@ -30,12 +30,9 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/cpufreq.h> - -#include <asm/uaccess.h> - -#include <acpi/acpi_bus.h> +#include <linux/acpi.h> #include <acpi/processor.h> -#include <acpi/acpi_drivers.h> +#include <asm/uaccess.h> #define PREFIX "ACPI: " @@ -186,14 +183,14 @@ static int cpufreq_set_cur_state(unsigned int cpu, int state) #endif -/* thermal coolign device callbacks */ +/* thermal cooling device callbacks */ static int acpi_processor_max_state(struct acpi_processor *pr) { int max_state = 0; /* * There exists four states according to - * cpufreq_thermal_reduction_ptg. 0, 1, 2, 3 + * cpufreq_thermal_reduction_pctg. 0, 1, 2, 3 */ max_state += cpufreq_get_max_state(pr->id); if (pr->flags.throttling) diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c index e7dd2c1fee7..84243c32e29 100644 --- a/drivers/acpi/processor_throttling.c +++ b/drivers/acpi/processor_throttling.c @@ -32,14 +32,11 @@ #include <linux/init.h> #include <linux/sched.h> #include <linux/cpufreq.h> - +#include <linux/acpi.h> +#include <acpi/processor.h> #include <asm/io.h> #include <asm/uaccess.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> -#include <acpi/processor.h> - #define PREFIX "ACPI: " #define ACPI_PROCESSOR_CLASS "processor" @@ -59,6 +56,12 @@ struct throttling_tstate { int target_state; /* target T-state */ }; +struct acpi_processor_throttling_arg { + struct acpi_processor *pr; + int target_state; + bool force; +}; + #define THROTTLING_PRECHANGE (1) #define THROTTLING_POSTCHANGE (2) @@ -1063,16 +1066,24 @@ static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr, return 0; } +static long acpi_processor_throttling_fn(void *data) +{ + struct acpi_processor_throttling_arg *arg = data; + struct acpi_processor *pr = arg->pr; + + return pr->throttling.acpi_processor_set_throttling(pr, + arg->target_state, arg->force); +} + int acpi_processor_set_throttling(struct acpi_processor *pr, int state, bool force) { - cpumask_var_t saved_mask; int ret = 0; unsigned int i; struct acpi_processor *match_pr; struct acpi_processor_throttling *p_throttling; + struct acpi_processor_throttling_arg arg; struct throttling_tstate t_state; - cpumask_var_t online_throttling_cpus; if (!pr) return -EINVAL; @@ -1083,14 +1094,6 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, if ((state < 0) || (state > (pr->throttling.state_count - 1))) return -EINVAL; - if (!alloc_cpumask_var(&saved_mask, GFP_KERNEL)) - return -ENOMEM; - - if (!alloc_cpumask_var(&online_throttling_cpus, GFP_KERNEL)) { - free_cpumask_var(saved_mask); - return -ENOMEM; - } - if (cpu_is_offline(pr->id)) { /* * the cpu pointed by pr->id is offline. Unnecessary to change @@ -1099,17 +1102,15 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, return -ENODEV; } - cpumask_copy(saved_mask, ¤t->cpus_allowed); t_state.target_state = state; p_throttling = &(pr->throttling); - cpumask_and(online_throttling_cpus, cpu_online_mask, - p_throttling->shared_cpu_map); + /* * The throttling notifier will be called for every * affected cpu in order to get one proper T-state. * The notifier event is THROTTLING_PRECHANGE. */ - for_each_cpu(i, online_throttling_cpus) { + for_each_cpu_and(i, cpu_online_mask, p_throttling->shared_cpu_map) { t_state.cpu = i; acpi_processor_throttling_notifier(THROTTLING_PRECHANGE, &t_state); @@ -1121,21 +1122,18 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, * it can be called only for the cpu pointed by pr. */ if (p_throttling->shared_type == DOMAIN_COORD_TYPE_SW_ANY) { - /* FIXME: use work_on_cpu() */ - if (set_cpus_allowed_ptr(current, cpumask_of(pr->id))) { - /* Can't migrate to the pr->id CPU. Exit */ - ret = -ENODEV; - goto exit; - } - ret = p_throttling->acpi_processor_set_throttling(pr, - t_state.target_state, force); + arg.pr = pr; + arg.target_state = state; + arg.force = force; + ret = work_on_cpu(pr->id, acpi_processor_throttling_fn, &arg); } else { /* * When the T-state coordination is SW_ALL or HW_ALL, * it is necessary to set T-state for every affected * cpus. */ - for_each_cpu(i, online_throttling_cpus) { + for_each_cpu_and(i, cpu_online_mask, + p_throttling->shared_cpu_map) { match_pr = per_cpu(processors, i); /* * If the pointer is invalid, we will report the @@ -1156,13 +1154,12 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, "on CPU %d\n", i)); continue; } - t_state.cpu = i; - /* FIXME: use work_on_cpu() */ - if (set_cpus_allowed_ptr(current, cpumask_of(i))) - continue; - ret = match_pr->throttling. - acpi_processor_set_throttling( - match_pr, t_state.target_state, force); + + arg.pr = match_pr; + arg.target_state = state; + arg.force = force; + ret = work_on_cpu(pr->id, acpi_processor_throttling_fn, + &arg); } } /* @@ -1171,17 +1168,12 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, * affected cpu to update the T-states. * The notifier event is THROTTLING_POSTCHANGE */ - for_each_cpu(i, online_throttling_cpus) { + for_each_cpu_and(i, cpu_online_mask, p_throttling->shared_cpu_map) { t_state.cpu = i; acpi_processor_throttling_notifier(THROTTLING_POSTCHANGE, &t_state); } - /* restore the previous state */ - /* FIXME: use work_on_cpu() */ - set_cpus_allowed_ptr(current, saved_mask); -exit: - free_cpumask_var(online_throttling_cpus); - free_cpumask_var(saved_mask); + return ret; } diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index b7201fc6f1e..2ba8f02ced3 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -77,18 +77,24 @@ bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res) switch (ares->type) { case ACPI_RESOURCE_TYPE_MEMORY24: memory24 = &ares->data.memory24; + if (!memory24->minimum && !memory24->address_length) + return false; acpi_dev_get_memresource(res, memory24->minimum, memory24->address_length, memory24->write_protect); break; case ACPI_RESOURCE_TYPE_MEMORY32: memory32 = &ares->data.memory32; + if (!memory32->minimum && !memory32->address_length) + return false; acpi_dev_get_memresource(res, memory32->minimum, memory32->address_length, memory32->write_protect); break; case ACPI_RESOURCE_TYPE_FIXED_MEMORY32: fixed_memory32 = &ares->data.fixed_memory32; + if (!fixed_memory32->address && !fixed_memory32->address_length) + return false; acpi_dev_get_memresource(res, fixed_memory32->address, fixed_memory32->address_length, fixed_memory32->write_protect); @@ -144,12 +150,16 @@ bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res) switch (ares->type) { case ACPI_RESOURCE_TYPE_IO: io = &ares->data.io; + if (!io->minimum && !io->address_length) + return false; acpi_dev_get_ioresource(res, io->minimum, io->address_length, io->io_decode); break; case ACPI_RESOURCE_TYPE_FIXED_IO: fixed_io = &ares->data.fixed_io; + if (!fixed_io->address && !fixed_io->address_length) + return false; acpi_dev_get_ioresource(res, fixed_io->address, fixed_io->address_length, ACPI_DECODE_10); diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c index d465ae6cdd0..366ca40a6f7 100644 --- a/drivers/acpi/sbs.c +++ b/drivers/acpi/sbs.c @@ -37,12 +37,12 @@ #include <linux/power_supply.h> #include "sbshc.h" +#include "battery.h" #define PREFIX "ACPI: " #define ACPI_SBS_CLASS "sbs" #define ACPI_AC_CLASS "ac_adapter" -#define ACPI_BATTERY_CLASS "battery" #define ACPI_SBS_DEVICE_NAME "Smart Battery System" #define ACPI_SBS_FILE_INFO "info" #define ACPI_SBS_FILE_STATE "state" @@ -450,7 +450,7 @@ static ssize_t acpi_battery_alarm_store(struct device *dev, { unsigned long x; struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev)); - if (sscanf(buf, "%ld\n", &x) == 1) + if (sscanf(buf, "%lu\n", &x) == 1) battery->alarm_capacity = x / (1000 * acpi_battery_scale(battery)); if (battery->present) @@ -668,6 +668,8 @@ static int acpi_sbs_resume(struct device *dev) acpi_sbs_callback(sbs); return 0; } +#else +#define acpi_sbs_resume NULL #endif static SIMPLE_DEV_PM_OPS(acpi_sbs_pm, NULL, acpi_sbs_resume); diff --git a/drivers/acpi/sbshc.c b/drivers/acpi/sbshc.c index b78bc605837..26e5b506052 100644 --- a/drivers/acpi/sbshc.c +++ b/drivers/acpi/sbshc.c @@ -8,8 +8,7 @@ * the Free Software Foundation version 2. */ -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <linux/wait.h> #include <linux/slab.h> #include <linux/delay.h> diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index fd39459926b..f775fa0d850 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -12,13 +12,12 @@ #include <linux/dmi.h> #include <linux/nls.h> -#include <acpi/acpi_drivers.h> +#include <asm/pgtable.h> #include "internal.h" #define _COMPONENT ACPI_BUS_COMPONENT ACPI_MODULE_NAME("scan"); -#define STRUCT_TO_INT(s) (*((int*)&s)) extern struct acpi_device *acpi_root; #define ACPI_BUS_CLASS "system_bus" @@ -27,6 +26,8 @@ extern struct acpi_device *acpi_root; #define ACPI_IS_ROOT_DEVICE(device) (!(device)->parent) +#define INVALID_ACPI_HANDLE ((acpi_handle)empty_zero_page) + /* * If set, devices will be hot-removed even if they cannot be put offline * gracefully (from the kernel's standpoint). @@ -40,6 +41,7 @@ static DEFINE_MUTEX(acpi_scan_lock); static LIST_HEAD(acpi_scan_handlers_list); DEFINE_MUTEX(acpi_device_lock); LIST_HEAD(acpi_wakeup_device_list); +static DEFINE_MUTEX(acpi_hp_context_lock); struct acpi_device_bus_id{ char bus_id[15]; @@ -59,9 +61,30 @@ void acpi_scan_lock_release(void) } EXPORT_SYMBOL_GPL(acpi_scan_lock_release); +void acpi_lock_hp_context(void) +{ + mutex_lock(&acpi_hp_context_lock); +} + +void acpi_unlock_hp_context(void) +{ + mutex_unlock(&acpi_hp_context_lock); +} + +void acpi_initialize_hp_context(struct acpi_device *adev, + struct acpi_hotplug_context *hp, + int (*notify)(struct acpi_device *, u32), + void (*uevent)(struct acpi_device *, u32)) +{ + acpi_lock_hp_context(); + acpi_set_hp_context(adev, hp, notify, uevent, NULL); + acpi_unlock_hp_context(); +} +EXPORT_SYMBOL_GPL(acpi_initialize_hp_context); + int acpi_scan_add_handler(struct acpi_scan_handler *handler) { - if (!handler || !handler->attach) + if (!handler) return -EINVAL; list_add_tail(&handler->list_node, &acpi_scan_handlers_list); @@ -85,6 +108,9 @@ int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler, * Creates hid/cid(s) string needed for modalias and uevent * e.g. on a device with hid:IBM0001 and cid:ACPI0001 you get: * char *modalias: "acpi:IBM0001:ACPI0001" + * Return: 0: no _HID and no _CID + * -EINVAL: output error + * -ENOMEM: output is truncated */ static int create_modalias(struct acpi_device *acpi_dev, char *modalias, int size) @@ -101,8 +127,10 @@ static int create_modalias(struct acpi_device *acpi_dev, char *modalias, list_for_each_entry(id, &acpi_dev->pnp.ids, list) { count = snprintf(&modalias[len], size, "%s:", id->id); - if (count < 0 || count >= size) - return -EINVAL; + if (count < 0) + return EINVAL; + if (count >= size) + return -ENOMEM; len += count; size -= count; } @@ -111,20 +139,96 @@ static int create_modalias(struct acpi_device *acpi_dev, char *modalias, return len; } +/* + * Creates uevent modalias field for ACPI enumerated devices. + * Because the other buses does not support ACPI HIDs & CIDs. + * e.g. for a device with hid:IBM0001 and cid:ACPI0001 you get: + * "acpi:IBM0001:ACPI0001" + */ +int acpi_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env) +{ + struct acpi_device *acpi_dev; + int len; + + acpi_dev = ACPI_COMPANION(dev); + if (!acpi_dev) + return -ENODEV; + + /* Fall back to bus specific way of modalias exporting */ + if (list_empty(&acpi_dev->pnp.ids)) + return -ENODEV; + + if (add_uevent_var(env, "MODALIAS=")) + return -ENOMEM; + len = create_modalias(acpi_dev, &env->buf[env->buflen - 1], + sizeof(env->buf) - env->buflen); + if (len <= 0) + return len; + env->buflen += len; + return 0; +} +EXPORT_SYMBOL_GPL(acpi_device_uevent_modalias); + +/* + * Creates modalias sysfs attribute for ACPI enumerated devices. + * Because the other buses does not support ACPI HIDs & CIDs. + * e.g. for a device with hid:IBM0001 and cid:ACPI0001 you get: + * "acpi:IBM0001:ACPI0001" + */ +int acpi_device_modalias(struct device *dev, char *buf, int size) +{ + struct acpi_device *acpi_dev; + int len; + + acpi_dev = ACPI_COMPANION(dev); + if (!acpi_dev) + return -ENODEV; + + /* Fall back to bus specific way of modalias exporting */ + if (list_empty(&acpi_dev->pnp.ids)) + return -ENODEV; + + len = create_modalias(acpi_dev, buf, size -1); + if (len <= 0) + return len; + buf[len++] = '\n'; + return len; +} +EXPORT_SYMBOL_GPL(acpi_device_modalias); + static ssize_t acpi_device_modalias_show(struct device *dev, struct device_attribute *attr, char *buf) { struct acpi_device *acpi_dev = to_acpi_device(dev); int len; - /* Device has no HID and no CID or string is >1024 */ len = create_modalias(acpi_dev, buf, 1024); if (len <= 0) - return 0; + return len; buf[len++] = '\n'; return len; } static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL); +bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent) +{ + struct acpi_device_physical_node *pn; + bool offline = true; + + mutex_lock(&adev->physical_node_lock); + + list_for_each_entry(pn, &adev->physical_node_list, node) + if (device_supports_offline(pn->dev) && !pn->dev->offline) { + if (uevent) + kobject_uevent(&pn->dev->kobj, KOBJ_CHANGE); + + offline = false; + break; + } + + mutex_unlock(&adev->physical_node_lock); + return offline; +} + static acpi_status acpi_bus_offline(acpi_handle handle, u32 lvl, void *data, void **ret_p) { @@ -195,19 +299,11 @@ static acpi_status acpi_bus_online(acpi_handle handle, u32 lvl, void *data, return AE_OK; } -static int acpi_scan_hot_remove(struct acpi_device *device) +static int acpi_scan_try_to_offline(struct acpi_device *device) { acpi_handle handle = device->handle; - struct device *errdev; + struct device *errdev = NULL; acpi_status status; - unsigned long long sta; - - /* If there is no handle, the device node has been unregistered. */ - if (!handle) { - dev_dbg(&device->dev, "ACPI handle missing\n"); - put_device(&device->dev); - return -EINVAL; - } /* * Carry out two passes here and ignore errors in the first pass, @@ -218,7 +314,6 @@ static int acpi_scan_hot_remove(struct acpi_device *device) * * If the first pass is successful, the second one isn't needed, though. */ - errdev = NULL; status = acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX, NULL, acpi_bus_offline, (void *)false, (void **)&errdev); @@ -226,7 +321,6 @@ static int acpi_scan_hot_remove(struct acpi_device *device) dev_warn(errdev, "Offline disabled.\n"); acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX, acpi_bus_online, NULL, NULL, NULL); - put_device(&device->dev); return -EPERM; } acpi_bus_offline(handle, 0, (void *)false, (void **)&errdev); @@ -245,20 +339,32 @@ static int acpi_scan_hot_remove(struct acpi_device *device) acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX, acpi_bus_online, NULL, NULL, NULL); - put_device(&device->dev); return -EBUSY; } } + return 0; +} + +static int acpi_scan_hot_remove(struct acpi_device *device) +{ + acpi_handle handle = device->handle; + unsigned long long sta; + acpi_status status; + + if (device->handler->hotplug.demand_offline && !acpi_force_hot_remove) { + if (!acpi_scan_is_offline(device, true)) + return -EBUSY; + } else { + int error = acpi_scan_try_to_offline(device); + if (error) + return error; + } ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Hot-removing device %s...\n", dev_name(&device->dev))); acpi_bus_trim(device); - /* Device node has been unregistered. */ - put_device(&device->dev); - device = NULL; - acpi_evaluate_lck(handle, 0); /* * TBD: _EJD support. @@ -285,146 +391,145 @@ static int acpi_scan_hot_remove(struct acpi_device *device) return 0; } -void acpi_bus_device_eject(void *data, u32 ost_src) +static int acpi_scan_device_not_present(struct acpi_device *adev) { - struct acpi_device *device = data; - acpi_handle handle = device->handle; - u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; - int error; - - lock_device_hotplug(); - mutex_lock(&acpi_scan_lock); - - if (ost_src == ACPI_NOTIFY_EJECT_REQUEST) - acpi_evaluate_hotplug_ost(handle, ACPI_NOTIFY_EJECT_REQUEST, - ACPI_OST_SC_EJECT_IN_PROGRESS, NULL); - - if (device->handler && device->handler->hotplug.mode == AHM_CONTAINER) - kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE); - - error = acpi_scan_hot_remove(device); - if (error == -EPERM) { - goto err_support; - } else if (error) { - goto err_out; + if (!acpi_device_enumerated(adev)) { + dev_warn(&adev->dev, "Still not present\n"); + return -EALREADY; } + acpi_bus_trim(adev); + return 0; +} - out: - mutex_unlock(&acpi_scan_lock); - unlock_device_hotplug(); - return; +static int acpi_scan_device_check(struct acpi_device *adev) +{ + int error; - err_support: - ost_code = ACPI_OST_SC_EJECT_NOT_SUPPORTED; - err_out: - acpi_evaluate_hotplug_ost(handle, ost_src, ost_code, NULL); - goto out; + acpi_bus_get_status(adev); + if (adev->status.present || adev->status.functional) { + /* + * This function is only called for device objects for which + * matching scan handlers exist. The only situation in which + * the scan handler is not attached to this device object yet + * is when the device has just appeared (either it wasn't + * present at all before or it was removed and then added + * again). + */ + if (adev->handler) { + dev_warn(&adev->dev, "Already enumerated\n"); + return -EALREADY; + } + error = acpi_bus_scan(adev->handle); + if (error) { + dev_warn(&adev->dev, "Namespace scan failure\n"); + return error; + } + if (!adev->handler) { + dev_warn(&adev->dev, "Enumeration failure\n"); + error = -ENODEV; + } + } else { + error = acpi_scan_device_not_present(adev); + } + return error; } -static void acpi_scan_bus_device_check(void *data, u32 ost_source) +static int acpi_scan_bus_check(struct acpi_device *adev) { - acpi_handle handle = data; - struct acpi_device *device = NULL; - u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; + struct acpi_scan_handler *handler = adev->handler; + struct acpi_device *child; int error; - lock_device_hotplug(); - mutex_lock(&acpi_scan_lock); - - if (ost_source != ACPI_NOTIFY_BUS_CHECK) { - acpi_bus_get_device(handle, &device); - if (device) { - dev_warn(&device->dev, "Attempt to re-insert\n"); - goto out; - } + acpi_bus_get_status(adev); + if (!(adev->status.present || adev->status.functional)) { + acpi_scan_device_not_present(adev); + return 0; } - error = acpi_bus_scan(handle); + if (handler && handler->hotplug.scan_dependent) + return handler->hotplug.scan_dependent(adev); + + error = acpi_bus_scan(adev->handle); if (error) { - acpi_handle_warn(handle, "Namespace scan failure\n"); - goto out; + dev_warn(&adev->dev, "Namespace scan failure\n"); + return error; } - error = acpi_bus_get_device(handle, &device); - if (error) { - acpi_handle_warn(handle, "Missing device node object\n"); - goto out; + list_for_each_entry(child, &adev->children, node) { + error = acpi_scan_bus_check(child); + if (error) + return error; } - ost_code = ACPI_OST_SC_SUCCESS; - if (device->handler && device->handler->hotplug.mode == AHM_CONTAINER) - kobject_uevent(&device->dev.kobj, KOBJ_ONLINE); - - out: - acpi_evaluate_hotplug_ost(handle, ost_source, ost_code, NULL); - mutex_unlock(&acpi_scan_lock); - unlock_device_hotplug(); + return 0; } -static void acpi_hotplug_unsupported(acpi_handle handle, u32 type) +static int acpi_generic_hotplug_event(struct acpi_device *adev, u32 type) { - u32 ost_status; - switch (type) { case ACPI_NOTIFY_BUS_CHECK: - acpi_handle_debug(handle, - "ACPI_NOTIFY_BUS_CHECK event: unsupported\n"); - ost_status = ACPI_OST_SC_INSERT_NOT_SUPPORTED; - break; + return acpi_scan_bus_check(adev); case ACPI_NOTIFY_DEVICE_CHECK: - acpi_handle_debug(handle, - "ACPI_NOTIFY_DEVICE_CHECK event: unsupported\n"); - ost_status = ACPI_OST_SC_INSERT_NOT_SUPPORTED; - break; + return acpi_scan_device_check(adev); case ACPI_NOTIFY_EJECT_REQUEST: - acpi_handle_debug(handle, - "ACPI_NOTIFY_EJECT_REQUEST event: unsupported\n"); - ost_status = ACPI_OST_SC_EJECT_NOT_SUPPORTED; - break; - default: - /* non-hotplug event; possibly handled by other handler */ - return; + case ACPI_OST_EC_OSPM_EJECT: + if (adev->handler && !adev->handler->hotplug.enabled) { + dev_info(&adev->dev, "Eject disabled\n"); + return -EPERM; + } + acpi_evaluate_ost(adev->handle, ACPI_NOTIFY_EJECT_REQUEST, + ACPI_OST_SC_EJECT_IN_PROGRESS, NULL); + return acpi_scan_hot_remove(adev); } - - acpi_evaluate_hotplug_ost(handle, type, ost_status, NULL); + return -EINVAL; } -static void acpi_hotplug_notify_cb(acpi_handle handle, u32 type, void *data) +void acpi_device_hotplug(struct acpi_device *adev, u32 src) { - struct acpi_scan_handler *handler = data; - struct acpi_device *adev; - acpi_status status; + u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; + int error = -ENODEV; - if (!handler->hotplug.enabled) - return acpi_hotplug_unsupported(handle, type); + lock_device_hotplug(); + mutex_lock(&acpi_scan_lock); - switch (type) { - case ACPI_NOTIFY_BUS_CHECK: - acpi_handle_debug(handle, "ACPI_NOTIFY_BUS_CHECK event\n"); - break; - case ACPI_NOTIFY_DEVICE_CHECK: - acpi_handle_debug(handle, "ACPI_NOTIFY_DEVICE_CHECK event\n"); - break; - case ACPI_NOTIFY_EJECT_REQUEST: - acpi_handle_debug(handle, "ACPI_NOTIFY_EJECT_REQUEST event\n"); - if (acpi_bus_get_device(handle, &adev)) - goto err_out; + /* + * The device object's ACPI handle cannot become invalid as long as we + * are holding acpi_scan_lock, but it might have become invalid before + * that lock was acquired. + */ + if (adev->handle == INVALID_ACPI_HANDLE) + goto err_out; - get_device(&adev->dev); - status = acpi_hotplug_execute(acpi_bus_device_eject, adev, type); - if (ACPI_SUCCESS(status)) - return; + if (adev->flags.is_dock_station) { + error = dock_notify(adev, src); + } else if (adev->flags.hotplug_notify) { + error = acpi_generic_hotplug_event(adev, src); + if (error == -EPERM) { + ost_code = ACPI_OST_SC_EJECT_NOT_SUPPORTED; + goto err_out; + } + } else { + int (*notify)(struct acpi_device *, u32); - put_device(&adev->dev); - goto err_out; - default: - /* non-hotplug event; possibly handled by other handler */ - return; + acpi_lock_hp_context(); + notify = adev->hp ? adev->hp->notify : NULL; + acpi_unlock_hp_context(); + /* + * There may be additional notify handlers for device objects + * without the .event() callback, so ignore them here. + */ + if (notify) + error = notify(adev, src); + else + goto out; } - status = acpi_hotplug_execute(acpi_scan_bus_device_check, handle, type); - if (ACPI_SUCCESS(status)) - return; + if (!error) + ost_code = ACPI_OST_SC_SUCCESS; err_out: - acpi_evaluate_hotplug_ost(handle, type, - ACPI_OST_SC_NON_SPECIFIC_FAILURE, NULL); + acpi_evaluate_ost(adev->handle, src, ost_code, NULL); + + out: + acpi_bus_put_acpi_device(adev); + mutex_unlock(&acpi_scan_lock); + unlock_device_hotplug(); } static ssize_t real_power_state_show(struct device *dev, @@ -472,17 +577,14 @@ acpi_eject_store(struct device *d, struct device_attribute *attr, if (ACPI_FAILURE(status) || !acpi_device->flags.ejectable) return -ENODEV; - acpi_evaluate_hotplug_ost(acpi_device->handle, ACPI_OST_EC_OSPM_EJECT, - ACPI_OST_SC_EJECT_IN_PROGRESS, NULL); get_device(&acpi_device->dev); - status = acpi_hotplug_execute(acpi_bus_device_eject, acpi_device, - ACPI_OST_EC_OSPM_EJECT); + status = acpi_hotplug_schedule(acpi_device, ACPI_OST_EC_OSPM_EJECT); if (ACPI_SUCCESS(status)) return count; put_device(&acpi_device->dev); - acpi_evaluate_hotplug_ost(acpi_device->handle, ACPI_OST_EC_OSPM_EJECT, - ACPI_OST_SC_NON_SPECIFIC_FAILURE, NULL); + acpi_evaluate_ost(acpi_device->handle, ACPI_OST_EC_OSPM_EJECT, + ACPI_OST_SC_NON_SPECIFIC_FAILURE, NULL); return status == AE_NO_MEMORY ? -ENOMEM : -EAGAIN; } @@ -567,6 +669,20 @@ acpi_device_sun_show(struct device *dev, struct device_attribute *attr, } static DEVICE_ATTR(sun, 0444, acpi_device_sun_show, NULL); +static ssize_t status_show(struct device *dev, struct device_attribute *attr, + char *buf) { + struct acpi_device *acpi_dev = to_acpi_device(dev); + acpi_status status; + unsigned long long sta; + + status = acpi_evaluate_integer(acpi_dev->handle, "_STA", NULL, &sta); + if (ACPI_FAILURE(status)) + return -ENODEV; + + return sprintf(buf, "%llu\n", sta); +} +static DEVICE_ATTR_RO(status); + static int acpi_device_setup_files(struct acpi_device *dev) { struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; @@ -622,6 +738,12 @@ static int acpi_device_setup_files(struct acpi_device *dev) dev->pnp.sun = (unsigned long)-1; } + if (acpi_has_method(dev->handle, "_STA")) { + result = device_create_file(&dev->dev, &dev_attr_status); + if (result) + goto end; + } + /* * If device has _EJ0, 'eject' file is created that is used to trigger * hot-removal function from userland. @@ -677,6 +799,8 @@ static void acpi_device_remove_files(struct acpi_device *dev) device_remove_file(&dev->dev, &dev_attr_adr); device_remove_file(&dev->dev, &dev_attr_modalias); device_remove_file(&dev->dev, &dev_attr_hid); + if (acpi_has_method(dev->handle, "_STA")) + device_remove_file(&dev->dev, &dev_attr_status); if (dev->handle) device_remove_file(&dev->dev, &dev_attr_path); } @@ -782,8 +906,8 @@ static int acpi_device_uevent(struct device *dev, struct kobj_uevent_env *env) return -ENOMEM; len = create_modalias(acpi_dev, &env->buf[env->buflen - 1], sizeof(env->buf) - env->buflen); - if (len >= (sizeof(env->buf) - env->buflen)) - return -ENOMEM; + if (len <= 0) + return len; env->buflen += len; return 0; } @@ -907,19 +1031,103 @@ struct bus_type acpi_bus_type = { .uevent = acpi_device_uevent, }; -static void acpi_bus_data_handler(acpi_handle handle, void *context) +static void acpi_device_del(struct acpi_device *device) +{ + mutex_lock(&acpi_device_lock); + if (device->parent) + list_del(&device->node); + + list_del(&device->wakeup_list); + mutex_unlock(&acpi_device_lock); + + acpi_power_add_remove_device(device, false); + acpi_device_remove_files(device); + if (device->remove) + device->remove(device); + + device_del(&device->dev); +} + +static LIST_HEAD(acpi_device_del_list); +static DEFINE_MUTEX(acpi_device_del_lock); + +static void acpi_device_del_work_fn(struct work_struct *work_not_used) { - /* Intentionally empty. */ + for (;;) { + struct acpi_device *adev; + + mutex_lock(&acpi_device_del_lock); + + if (list_empty(&acpi_device_del_list)) { + mutex_unlock(&acpi_device_del_lock); + break; + } + adev = list_first_entry(&acpi_device_del_list, + struct acpi_device, del_list); + list_del(&adev->del_list); + + mutex_unlock(&acpi_device_del_lock); + + acpi_device_del(adev); + /* + * Drop references to all power resources that might have been + * used by the device. + */ + acpi_power_transition(adev, ACPI_STATE_D3_COLD); + put_device(&adev->dev); + } } -int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device) +/** + * acpi_scan_drop_device - Drop an ACPI device object. + * @handle: Handle of an ACPI namespace node, not used. + * @context: Address of the ACPI device object to drop. + * + * This is invoked by acpi_ns_delete_node() during the removal of the ACPI + * namespace node the device object pointed to by @context is attached to. + * + * The unregistration is carried out asynchronously to avoid running + * acpi_device_del() under the ACPICA's namespace mutex and the list is used to + * ensure the correct ordering (the device objects must be unregistered in the + * same order in which the corresponding namespace nodes are deleted). + */ +static void acpi_scan_drop_device(acpi_handle handle, void *context) +{ + static DECLARE_WORK(work, acpi_device_del_work_fn); + struct acpi_device *adev = context; + + mutex_lock(&acpi_device_del_lock); + + /* + * Use the ACPI hotplug workqueue which is ordered, so this work item + * won't run after any hotplug work items submitted subsequently. That + * prevents attempts to register device objects identical to those being + * deleted from happening concurrently (such attempts result from + * hotplug events handled via the ACPI hotplug workqueue). It also will + * run after all of the work items submitted previosuly, which helps + * those work items to ensure that they are not accessing stale device + * objects. + */ + if (list_empty(&acpi_device_del_list)) + acpi_queue_hotplug_work(&work); + + list_add_tail(&adev->del_list, &acpi_device_del_list); + /* Make acpi_ns_validate_handle() return NULL for this handle. */ + adev->handle = INVALID_ACPI_HANDLE; + + mutex_unlock(&acpi_device_del_lock); +} + +static int acpi_get_device_data(acpi_handle handle, struct acpi_device **device, + void (*callback)(void *)) { acpi_status status; if (!device) return -EINVAL; - status = acpi_get_data(handle, acpi_bus_data_handler, (void **)device); + status = acpi_get_data_full(handle, acpi_scan_drop_device, + (void **)device, callback); if (ACPI_FAILURE(status) || !*device) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n", handle)); @@ -927,8 +1135,32 @@ int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device) } return 0; } + +int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device) +{ + return acpi_get_device_data(handle, device, NULL); +} EXPORT_SYMBOL(acpi_bus_get_device); +static void get_acpi_device(void *dev) +{ + if (dev) + get_device(&((struct acpi_device *)dev)->dev); +} + +struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle) +{ + struct acpi_device *adev = NULL; + + acpi_get_device_data(handle, &adev, get_acpi_device); + return adev; +} + +void acpi_bus_put_acpi_device(struct acpi_device *adev) +{ + put_device(&adev->dev); +} + int acpi_device_add(struct acpi_device *device, void (*release)(struct device *)) { @@ -939,7 +1171,7 @@ int acpi_device_add(struct acpi_device *device, if (device->handle) { acpi_status status; - status = acpi_attach_data(device->handle, acpi_bus_data_handler, + status = acpi_attach_data(device->handle, acpi_scan_drop_device, device); if (ACPI_FAILURE(status)) { acpi_handle_err(device->handle, @@ -957,6 +1189,7 @@ int acpi_device_add(struct acpi_device *device, INIT_LIST_HEAD(&device->node); INIT_LIST_HEAD(&device->wakeup_list); INIT_LIST_HEAD(&device->physical_node_list); + INIT_LIST_HEAD(&device->del_list); mutex_init(&device->physical_node_lock); new_bus_id = kzalloc(sizeof(struct acpi_device_bus_id), GFP_KERNEL); @@ -1020,37 +1253,10 @@ int acpi_device_add(struct acpi_device *device, mutex_unlock(&acpi_device_lock); err_detach: - acpi_detach_data(device->handle, acpi_bus_data_handler); + acpi_detach_data(device->handle, acpi_scan_drop_device); return result; } -static void acpi_device_unregister(struct acpi_device *device) -{ - mutex_lock(&acpi_device_lock); - if (device->parent) - list_del(&device->node); - - list_del(&device->wakeup_list); - mutex_unlock(&acpi_device_lock); - - acpi_detach_data(device->handle, acpi_bus_data_handler); - - acpi_power_add_remove_device(device, false); - acpi_device_remove_files(device); - if (device->remove) - device->remove(device); - - device_del(&device->dev); - /* - * Transition the device to D3cold to drop the reference counts of all - * power resources the device depends on and turn off the ones that have - * no more references. - */ - acpi_device_set_power(device, ACPI_STATE_D3_COLD); - device->handle = NULL; - put_device(&device->dev); -} - /* -------------------------------------------------------------------------- Driver Management -------------------------------------------------------------------------- */ @@ -1345,9 +1551,13 @@ static void acpi_bus_get_power_flags(struct acpi_device *device) */ if (acpi_has_method(device->handle, "_PSC")) device->power.flags.explicit_get = 1; + if (acpi_has_method(device->handle, "_IRC")) device->power.flags.inrush_current = 1; + if (acpi_has_method(device->handle, "_DSW")) + device->power.flags.dsw_present = 1; + /* * Enumerate supported power management states */ @@ -1465,6 +1675,27 @@ bool acpi_bay_match(acpi_handle handle) return acpi_ata_match(phandle); } +bool acpi_device_is_battery(struct acpi_device *adev) +{ + struct acpi_hardware_id *hwid; + + list_for_each_entry(hwid, &adev->pnp.ids, list) + if (!strcmp("PNP0C0A", hwid->id)) + return true; + + return false; +} + +static bool is_ejectable_bay(struct acpi_device *adev) +{ + acpi_handle handle = adev->handle; + + if (acpi_has_method(handle, "_EJ0") && acpi_device_is_battery(adev)) + return true; + + return acpi_bay_match(handle); +} + /* * acpi_dock_match - see if an acpi object has a _DCK method */ @@ -1530,6 +1761,20 @@ static bool acpi_ibm_smbus_match(acpi_handle handle) return false; } +static bool acpi_object_is_system_bus(acpi_handle handle) +{ + acpi_handle tmp; + + if (ACPI_SUCCESS(acpi_get_handle(NULL, "\\_SB", &tmp)) && + tmp == handle) + return true; + if (ACPI_SUCCESS(acpi_get_handle(NULL, "\\_TZ", &tmp)) && + tmp == handle) + return true; + + return false; +} + static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp, int device_type) { @@ -1552,8 +1797,10 @@ static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp, return; } - if (info->valid & ACPI_VALID_HID) + if (info->valid & ACPI_VALID_HID) { acpi_add_id(pnp, info->hardware_id.string); + pnp->type.platform_id = 1; + } if (info->valid & ACPI_VALID_CID) { cid_list = &info->compatible_id_list; for (i = 0; i < cid_list->count; i++) @@ -1581,8 +1828,10 @@ static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp, acpi_add_id(pnp, ACPI_DOCK_HID); else if (acpi_ibm_smbus_match(handle)) acpi_add_id(pnp, ACPI_SMBUS_IBM_HID); - else if (list_empty(&pnp->ids) && handle == ACPI_ROOT_OBJECT) { - acpi_add_id(pnp, ACPI_BUS_HID); /* \_SB, LNXSYBUS */ + else if (list_empty(&pnp->ids) && + acpi_object_is_system_bus(handle)) { + /* \_SB, \_TZ, LNXSYBUS */ + acpi_add_id(pnp, ACPI_BUS_HID); strcpy(pnp->device_name, ACPI_BUS_DEVICE_NAME); strcpy(pnp->device_class, ACPI_BUS_CLASS); } @@ -1624,11 +1873,13 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, device->device_type = type; device->handle = handle; device->parent = acpi_bus_get_parent(handle); - STRUCT_TO_INT(device->status) = sta; + acpi_set_device_status(device, sta); acpi_device_get_busid(device); acpi_set_pnp_ids(handle, &device->pnp, type); acpi_bus_get_flags(device); device->flags.match_driver = false; + device->flags.initialized = true; + device->flags.visited = false; device_initialize(&device->dev); dev_set_uevent_suppress(&device->dev, true); } @@ -1713,12 +1964,24 @@ static int acpi_bus_type_and_status(acpi_handle handle, int *type, return 0; } +bool acpi_device_is_present(struct acpi_device *adev) +{ + if (adev->status.present || adev->status.functional) + return true; + + adev->flags.initialized = false; + return false; +} + static bool acpi_scan_handler_matching(struct acpi_scan_handler *handler, char *idstr, const struct acpi_device_id **matchid) { const struct acpi_device_id *devid; + if (handler->match) + return handler->match(idstr, matchid); + for (devid = handler->ids; devid->id[0]; devid++) if (!strcmp((char *)devid->id, idstr)) { if (matchid) @@ -1754,33 +2017,23 @@ void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val) mutex_unlock(&acpi_scan_lock); } -static void acpi_scan_init_hotplug(acpi_handle handle, int type) +static void acpi_scan_init_hotplug(struct acpi_device *adev) { - struct acpi_device_pnp pnp = {}; struct acpi_hardware_id *hwid; - struct acpi_scan_handler *handler; - - INIT_LIST_HEAD(&pnp.ids); - acpi_set_pnp_ids(handle, &pnp, type); - if (!pnp.type.hardware_id) - goto out; + if (acpi_dock_match(adev->handle) || is_ejectable_bay(adev)) { + acpi_dock_add(adev); + return; + } + list_for_each_entry(hwid, &adev->pnp.ids, list) { + struct acpi_scan_handler *handler; - /* - * This relies on the fact that acpi_install_notify_handler() will not - * install the same notify handler routine twice for the same handle. - */ - list_for_each_entry(hwid, &pnp.ids, list) { handler = acpi_scan_match_handler(hwid->id, NULL); - if (handler && !handler->hotplug.ignore) { - acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY, - acpi_hotplug_notify_cb, handler); + if (handler) { + adev->flags.hotplug_notify = true; break; } } - -out: - acpi_free_pnp_ids(&pnp); } static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used, @@ -1804,24 +2057,12 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used, return AE_OK; } - acpi_scan_init_hotplug(handle, type); - - if (!(sta & ACPI_STA_DEVICE_PRESENT) && - !(sta & ACPI_STA_DEVICE_FUNCTIONING)) { - struct acpi_device_wakeup wakeup; - - if (acpi_has_method(handle, "_PRW")) { - acpi_bus_extract_wakeup_device_power_package(handle, - &wakeup); - acpi_power_resources_list_free(&wakeup.resources); - } - return AE_CTRL_DEPTH; - } - acpi_add_single_object(&device, handle, type, sta); if (!device) return AE_CTRL_DEPTH; + acpi_scan_init_hotplug(device); + out: if (!*return_value) *return_value = device; @@ -1829,6 +2070,44 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used, return AE_OK; } +static int acpi_check_spi_i2c_slave(struct acpi_resource *ares, void *data) +{ + bool *is_spi_i2c_slave_p = data; + + if (ares->type != ACPI_RESOURCE_TYPE_SERIAL_BUS) + return 1; + + /* + * devices that are connected to UART still need to be enumerated to + * platform bus + */ + if (ares->data.common_serial_bus.type != ACPI_RESOURCE_SERIAL_TYPE_UART) + *is_spi_i2c_slave_p = true; + + /* no need to do more checking */ + return -1; +} + +static void acpi_default_enumeration(struct acpi_device *device) +{ + struct list_head resource_list; + bool is_spi_i2c_slave = false; + + if (!device->pnp.type.platform_id || device->handler) + return; + + /* + * Do not enemerate SPI/I2C slaves as they will be enuerated by their + * respective parents. + */ + INIT_LIST_HEAD(&resource_list); + acpi_dev_get_resources(device, &resource_list, acpi_check_spi_i2c_slave, + &is_spi_i2c_slave); + acpi_dev_free_resource_list(&resource_list); + if (!is_spi_i2c_slave) + acpi_create_platform_device(device); +} + static int acpi_scan_attach_handler(struct acpi_device *device) { struct acpi_hardware_id *hwid; @@ -1840,48 +2119,64 @@ static int acpi_scan_attach_handler(struct acpi_device *device) handler = acpi_scan_match_handler(hwid->id, &devid); if (handler) { + if (!handler->attach) { + device->pnp.type.platform_id = 0; + continue; + } + device->handler = handler; ret = handler->attach(device, devid); - if (ret > 0) { - device->handler = handler; + if (ret > 0) break; - } else if (ret < 0) { + + device->handler = NULL; + if (ret < 0) break; - } } } + if (!ret) + acpi_default_enumeration(device); + return ret; } -static acpi_status acpi_bus_device_attach(acpi_handle handle, u32 lvl_not_used, - void *not_used, void **ret_not_used) +static void acpi_bus_attach(struct acpi_device *device) { - struct acpi_device *device; - unsigned long long sta_not_used; + struct acpi_device *child; + acpi_handle ejd; int ret; - /* - * Ignore errors ignored by acpi_bus_check_add() to avoid terminating - * namespace walks prematurely. - */ - if (acpi_bus_type_and_status(handle, &ret, &sta_not_used)) - return AE_OK; - - if (acpi_bus_get_device(handle, &device)) - return AE_CTRL_DEPTH; + if (ACPI_SUCCESS(acpi_bus_get_ejd(device->handle, &ejd))) + register_dock_dependent_device(device, ejd); + acpi_bus_get_status(device); + /* Skip devices that are not present. */ + if (!acpi_device_is_present(device)) { + device->flags.visited = false; + return; + } if (device->handler) - return AE_OK; + goto ok; + if (!device->flags.initialized) { + acpi_bus_update_power(device, NULL); + device->flags.initialized = true; + } + device->flags.visited = false; ret = acpi_scan_attach_handler(device); if (ret < 0) - return AE_CTRL_DEPTH; + return; device->flags.match_driver = true; - if (ret > 0) - return AE_OK; + if (!ret) { + ret = device_attach(&device->dev); + if (ret < 0) + return; + } + device->flags.visited = true; - ret = device_attach(&device->dev); - return ret >= 0 ? AE_OK : AE_CTRL_DEPTH; + ok: + list_for_each_entry(child, &device->children, node) + acpi_bus_attach(child); } /** @@ -1901,75 +2196,49 @@ static acpi_status acpi_bus_device_attach(acpi_handle handle, u32 lvl_not_used, int acpi_bus_scan(acpi_handle handle) { void *device = NULL; - int error = 0; if (ACPI_SUCCESS(acpi_bus_check_add(handle, 0, NULL, &device))) acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX, acpi_bus_check_add, NULL, NULL, &device); - if (!device) - error = -ENODEV; - else if (ACPI_SUCCESS(acpi_bus_device_attach(handle, 0, NULL, NULL))) - acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX, - acpi_bus_device_attach, NULL, NULL, NULL); - - return error; -} -EXPORT_SYMBOL(acpi_bus_scan); - -static acpi_status acpi_bus_device_detach(acpi_handle handle, u32 lvl_not_used, - void *not_used, void **ret_not_used) -{ - struct acpi_device *device = NULL; - - if (!acpi_bus_get_device(handle, &device)) { - struct acpi_scan_handler *dev_handler = device->handler; - - if (dev_handler) { - if (dev_handler->detach) - dev_handler->detach(device); - - device->handler = NULL; - } else { - device_release_driver(&device->dev); - } + if (device) { + acpi_bus_attach(device); + return 0; } - return AE_OK; -} - -static acpi_status acpi_bus_remove(acpi_handle handle, u32 lvl_not_used, - void *not_used, void **ret_not_used) -{ - struct acpi_device *device = NULL; - - if (!acpi_bus_get_device(handle, &device)) - acpi_device_unregister(device); - - return AE_OK; + return -ENODEV; } +EXPORT_SYMBOL(acpi_bus_scan); /** - * acpi_bus_trim - Remove ACPI device node and all of its descendants - * @start: Root of the ACPI device nodes subtree to remove. + * acpi_bus_trim - Detach scan handlers and drivers from ACPI device objects. + * @adev: Root of the ACPI namespace scope to walk. * * Must be called under acpi_scan_lock. */ -void acpi_bus_trim(struct acpi_device *start) +void acpi_bus_trim(struct acpi_device *adev) { + struct acpi_scan_handler *handler = adev->handler; + struct acpi_device *child; + + list_for_each_entry_reverse(child, &adev->children, node) + acpi_bus_trim(child); + + adev->flags.match_driver = false; + if (handler) { + if (handler->detach) + handler->detach(adev); + + adev->handler = NULL; + } else { + device_release_driver(&adev->dev); + } /* - * Execute acpi_bus_device_detach() as a post-order callback to detach - * all ACPI drivers from the device nodes being removed. - */ - acpi_walk_namespace(ACPI_TYPE_ANY, start->handle, ACPI_UINT32_MAX, NULL, - acpi_bus_device_detach, NULL, NULL); - acpi_bus_device_detach(start->handle, 0, NULL, NULL); - /* - * Execute acpi_bus_remove() as a post-order callback to remove device - * nodes in the given namespace scope. + * Most likely, the device is going away, so put it into D3cold before + * that. */ - acpi_walk_namespace(ACPI_TYPE_ANY, start->handle, ACPI_UINT32_MAX, NULL, - acpi_bus_remove, NULL, NULL); - acpi_bus_remove(start->handle, 0, NULL, NULL); + acpi_device_set_power(adev, ACPI_STATE_D3_COLD); + adev->flags.initialized = false; + adev->flags.visited = false; } EXPORT_SYMBOL_GPL(acpi_bus_trim); @@ -2026,12 +2295,11 @@ int __init acpi_scan_init(void) acpi_pci_root_init(); acpi_pci_link_init(); acpi_processor_init(); - acpi_platform_init(); acpi_lpss_init(); acpi_cmos_rtc_init(); acpi_container_init(); acpi_memory_hotplug_init(); - acpi_dock_init(); + acpi_pnp_init(); mutex_lock(&acpi_scan_lock); /* @@ -2045,16 +2313,20 @@ int __init acpi_scan_init(void) if (result) goto out; - result = acpi_bus_scan_fixed(); - if (result) { - acpi_device_unregister(acpi_root); - goto out; + /* Fixed feature devices do not exist on HW-reduced platform */ + if (!acpi_gbl_reduced_hardware) { + result = acpi_bus_scan_fixed(); + if (result) { + acpi_detach_data(acpi_root->handle, + acpi_scan_drop_device); + acpi_device_del(acpi_root); + put_device(&acpi_root->dev); + goto out; + } } acpi_update_all_gpes(); - acpi_pci_root_hp_init(); - out: mutex_unlock(&acpi_scan_lock); return result; diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 721e949e606..b3e3cc73ba7 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -18,11 +18,8 @@ #include <linux/reboot.h> #include <linux/acpi.h> #include <linux/module.h> - #include <asm/io.h> - -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <trace/events/power.h> #include "internal.h" #include "sleep.h" @@ -75,6 +72,17 @@ static int acpi_sleep_prepare(u32 acpi_state) return 0; } +static bool acpi_sleep_state_supported(u8 sleep_state) +{ + acpi_status status; + u8 type_a, type_b; + + status = acpi_get_sleep_type_data(sleep_state, &type_a, &type_b); + return ACPI_SUCCESS(status) && (!acpi_gbl_reduced_hardware + || (acpi_gbl_FADT.sleep_control.address + && acpi_gbl_FADT.sleep_status.address)); +} + #ifdef CONFIG_ACPI_SLEEP static u32 acpi_target_sleep_state = ACPI_STATE_S0; @@ -82,6 +90,7 @@ u32 acpi_target_system_state(void) { return acpi_target_sleep_state; } +EXPORT_SYMBOL_GPL(acpi_target_system_state); static bool pwr_btn_event_pending; @@ -493,6 +502,7 @@ static int acpi_suspend_enter(suspend_state_t pm_state) ACPI_FLUSH_CPU_CACHE(); + trace_suspend_resume(TPS("acpi_suspend"), acpi_state, true); switch (acpi_state) { case ACPI_STATE_S1: barrier(); @@ -508,6 +518,7 @@ static int acpi_suspend_enter(suspend_state_t pm_state) pr_info(PREFIX "Low-level resume complete\n"); break; } + trace_suspend_resume(TPS("acpi_suspend"), acpi_state, false); /* This violates the spec but is required for bug compatibility. */ acpi_write_bit_register(ACPI_BITREG_SCI_ENABLE, 1); @@ -604,23 +615,35 @@ static const struct platform_suspend_ops acpi_suspend_ops_old = { .recover = acpi_pm_finish, }; +static int acpi_freeze_begin(void) +{ + acpi_scan_lock_acquire(); + return 0; +} + +static void acpi_freeze_end(void) +{ + acpi_scan_lock_release(); +} + +static const struct platform_freeze_ops acpi_freeze_ops = { + .begin = acpi_freeze_begin, + .end = acpi_freeze_end, +}; + static void acpi_sleep_suspend_setup(void) { int i; - for (i = ACPI_STATE_S1; i < ACPI_STATE_S4; i++) { - acpi_status status; - u8 type_a, type_b; - - status = acpi_get_sleep_type_data(i, &type_a, &type_b); - if (ACPI_SUCCESS(status)) { + for (i = ACPI_STATE_S1; i < ACPI_STATE_S4; i++) + if (acpi_sleep_state_supported(i)) sleep_states[i] = 1; - } - } suspend_set_ops(old_suspend_ordering ? &acpi_suspend_ops_old : &acpi_suspend_ops); + freeze_set_ops(&acpi_freeze_ops); } + #else /* !CONFIG_SUSPEND */ static inline void acpi_sleep_suspend_setup(void) {} #endif /* !CONFIG_SUSPEND */ @@ -670,11 +693,8 @@ static void acpi_hibernation_leave(void) /* Reprogram control registers */ acpi_leave_sleep_state_prep(ACPI_STATE_S4); /* Check the hardware signature */ - if (facs && s4_hardware_signature != facs->hardware_signature) { - printk(KERN_EMERG "ACPI: Hardware changed while hibernated, " - "cannot resume!\n"); - panic("ACPI S4 hardware signature mismatch"); - } + if (facs && s4_hardware_signature != facs->hardware_signature) + pr_crit("ACPI: Hardware changed while hibernated, success doubtful!\n"); /* Restore the NVS memory area */ suspend_nvs_restore(); /* Allow EC transactions to happen. */ @@ -747,11 +767,7 @@ static const struct platform_hibernation_ops acpi_hibernation_ops_old = { static void acpi_sleep_hibernate_setup(void) { - acpi_status status; - u8 type_a, type_b; - - status = acpi_get_sleep_type_data(ACPI_STATE_S4, &type_a, &type_b); - if (ACPI_FAILURE(status)) + if (!acpi_sleep_state_supported(ACPI_STATE_S4)) return; hibernation_set_ops(old_suspend_ordering ? @@ -800,15 +816,10 @@ static void acpi_power_off(void) int __init acpi_sleep_init(void) { - acpi_status status; - u8 type_a, type_b; char supported[ACPI_S_STATE_COUNT * 3 + 1]; char *pos = supported; int i; - if (acpi_disabled) - return 0; - acpi_sleep_dmi_check(); sleep_states[ACPI_STATE_S0] = 1; @@ -816,8 +827,7 @@ int __init acpi_sleep_init(void) acpi_sleep_suspend_setup(); acpi_sleep_hibernate_setup(); - status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b); - if (ACPI_SUCCESS(status)) { + if (acpi_sleep_state_supported(ACPI_STATE_S5)) { sleep_states[ACPI_STATE_S5] = 1; pm_power_off_prepare = acpi_power_off_prepare; pm_power_off = acpi_power_off; diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c index 6dbc3ca4522..38cb9782d4b 100644 --- a/drivers/acpi/sysfs.c +++ b/drivers/acpi/sysfs.c @@ -5,15 +5,13 @@ #include <linux/init.h> #include <linux/kernel.h> #include <linux/moduleparam.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include "internal.h" #define _COMPONENT ACPI_SYSTEM_COMPONENT ACPI_MODULE_NAME("sysfs"); -#define PREFIX "ACPI: " - #ifdef CONFIG_ACPI_DEBUG /* * ACPI debug sysfs I/F, including: @@ -226,7 +224,7 @@ module_param_call(trace_state, param_set_trace_state, param_get_trace_state, /* /sys/modules/acpi/parameters/aml_debug_output */ module_param_named(aml_debug_output, acpi_gbl_enable_aml_debug_object, - bool, 0644); + byte, 0644); MODULE_PARM_DESC(aml_debug_output, "To enable/disable the ACPI Debug Object output."); diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c index d67a1fe07f0..6d5a6cda073 100644 --- a/drivers/acpi/tables.c +++ b/drivers/acpi/tables.c @@ -23,6 +23,8 @@ * */ +#define pr_fmt(fmt) "ACPI: " fmt + #include <linux/init.h> #include <linux/kernel.h> #include <linux/smp.h> @@ -33,8 +35,6 @@ #include <linux/acpi.h> #include <linux/bootmem.h> -#define PREFIX "ACPI: " - #define ACPI_MAX_TABLES 128 static char *mps_inti_flags_polarity[] = { "dfl", "high", "res", "low" }; @@ -44,6 +44,12 @@ static struct acpi_table_desc initial_tables[ACPI_MAX_TABLES] __initdata; static int acpi_apic_instance __initdata; +/* + * Disable table checksum verification for the early stage due to the size + * limitation of the current x86 early mapping implementation. + */ +static bool acpi_verify_table_checksum __initdata = false; + void acpi_table_print_madt_entry(struct acpi_subtable_header *header) { if (!header) @@ -55,10 +61,9 @@ void acpi_table_print_madt_entry(struct acpi_subtable_header *header) { struct acpi_madt_local_apic *p = (struct acpi_madt_local_apic *)header; - printk(KERN_INFO PREFIX - "LAPIC (acpi_id[0x%02x] lapic_id[0x%02x] %s)\n", - p->processor_id, p->id, - (p->lapic_flags & ACPI_MADT_ENABLED) ? "enabled" : "disabled"); + pr_info("LAPIC (acpi_id[0x%02x] lapic_id[0x%02x] %s)\n", + p->processor_id, p->id, + (p->lapic_flags & ACPI_MADT_ENABLED) ? "enabled" : "disabled"); } break; @@ -66,11 +71,9 @@ void acpi_table_print_madt_entry(struct acpi_subtable_header *header) { struct acpi_madt_local_x2apic *p = (struct acpi_madt_local_x2apic *)header; - printk(KERN_INFO PREFIX - "X2APIC (apic_id[0x%02x] uid[0x%02x] %s)\n", - p->local_apic_id, p->uid, - (p->lapic_flags & ACPI_MADT_ENABLED) ? - "enabled" : "disabled"); + pr_info("X2APIC (apic_id[0x%02x] uid[0x%02x] %s)\n", + p->local_apic_id, p->uid, + (p->lapic_flags & ACPI_MADT_ENABLED) ? "enabled" : "disabled"); } break; @@ -78,9 +81,8 @@ void acpi_table_print_madt_entry(struct acpi_subtable_header *header) { struct acpi_madt_io_apic *p = (struct acpi_madt_io_apic *)header; - printk(KERN_INFO PREFIX - "IOAPIC (id[0x%02x] address[0x%08x] gsi_base[%d])\n", - p->id, p->address, p->global_irq_base); + pr_info("IOAPIC (id[0x%02x] address[0x%08x] gsi_base[%d])\n", + p->id, p->address, p->global_irq_base); } break; @@ -88,18 +90,15 @@ void acpi_table_print_madt_entry(struct acpi_subtable_header *header) { struct acpi_madt_interrupt_override *p = (struct acpi_madt_interrupt_override *)header; - printk(KERN_INFO PREFIX - "INT_SRC_OVR (bus %d bus_irq %d global_irq %d %s %s)\n", - p->bus, p->source_irq, p->global_irq, - mps_inti_flags_polarity[p->inti_flags & ACPI_MADT_POLARITY_MASK], - mps_inti_flags_trigger[(p->inti_flags & ACPI_MADT_TRIGGER_MASK) >> 2]); + pr_info("INT_SRC_OVR (bus %d bus_irq %d global_irq %d %s %s)\n", + p->bus, p->source_irq, p->global_irq, + mps_inti_flags_polarity[p->inti_flags & ACPI_MADT_POLARITY_MASK], + mps_inti_flags_trigger[(p->inti_flags & ACPI_MADT_TRIGGER_MASK) >> 2]); if (p->inti_flags & ~(ACPI_MADT_POLARITY_MASK | ACPI_MADT_TRIGGER_MASK)) - printk(KERN_INFO PREFIX - "INT_SRC_OVR unexpected reserved flags: 0x%x\n", - p->inti_flags & + pr_info("INT_SRC_OVR unexpected reserved flags: 0x%x\n", + p->inti_flags & ~(ACPI_MADT_POLARITY_MASK | ACPI_MADT_TRIGGER_MASK)); - } break; @@ -107,11 +106,10 @@ void acpi_table_print_madt_entry(struct acpi_subtable_header *header) { struct acpi_madt_nmi_source *p = (struct acpi_madt_nmi_source *)header; - printk(KERN_INFO PREFIX - "NMI_SRC (%s %s global_irq %d)\n", - mps_inti_flags_polarity[p->inti_flags & ACPI_MADT_POLARITY_MASK], - mps_inti_flags_trigger[(p->inti_flags & ACPI_MADT_TRIGGER_MASK) >> 2], - p->global_irq); + pr_info("NMI_SRC (%s %s global_irq %d)\n", + mps_inti_flags_polarity[p->inti_flags & ACPI_MADT_POLARITY_MASK], + mps_inti_flags_trigger[(p->inti_flags & ACPI_MADT_TRIGGER_MASK) >> 2], + p->global_irq); } break; @@ -119,12 +117,11 @@ void acpi_table_print_madt_entry(struct acpi_subtable_header *header) { struct acpi_madt_local_apic_nmi *p = (struct acpi_madt_local_apic_nmi *)header; - printk(KERN_INFO PREFIX - "LAPIC_NMI (acpi_id[0x%02x] %s %s lint[0x%x])\n", - p->processor_id, - mps_inti_flags_polarity[p->inti_flags & ACPI_MADT_POLARITY_MASK ], - mps_inti_flags_trigger[(p->inti_flags & ACPI_MADT_TRIGGER_MASK) >> 2], - p->lint); + pr_info("LAPIC_NMI (acpi_id[0x%02x] %s %s lint[0x%x])\n", + p->processor_id, + mps_inti_flags_polarity[p->inti_flags & ACPI_MADT_POLARITY_MASK ], + mps_inti_flags_trigger[(p->inti_flags & ACPI_MADT_TRIGGER_MASK) >> 2], + p->lint); } break; @@ -137,12 +134,11 @@ void acpi_table_print_madt_entry(struct acpi_subtable_header *header) polarity = p->inti_flags & ACPI_MADT_POLARITY_MASK; trigger = (p->inti_flags & ACPI_MADT_TRIGGER_MASK) >> 2; - printk(KERN_INFO PREFIX - "X2APIC_NMI (uid[0x%02x] %s %s lint[0x%x])\n", - p->uid, - mps_inti_flags_polarity[polarity], - mps_inti_flags_trigger[trigger], - p->lint); + pr_info("X2APIC_NMI (uid[0x%02x] %s %s lint[0x%x])\n", + p->uid, + mps_inti_flags_polarity[polarity], + mps_inti_flags_trigger[trigger], + p->lint); } break; @@ -150,9 +146,8 @@ void acpi_table_print_madt_entry(struct acpi_subtable_header *header) { struct acpi_madt_local_apic_override *p = (struct acpi_madt_local_apic_override *)header; - printk(KERN_INFO PREFIX - "LAPIC_ADDR_OVR (address[%p])\n", - (void *)(unsigned long)p->address); + pr_info("LAPIC_ADDR_OVR (address[%p])\n", + (void *)(unsigned long)p->address); } break; @@ -160,10 +155,9 @@ void acpi_table_print_madt_entry(struct acpi_subtable_header *header) { struct acpi_madt_io_sapic *p = (struct acpi_madt_io_sapic *)header; - printk(KERN_INFO PREFIX - "IOSAPIC (id[0x%x] address[%p] gsi_base[%d])\n", - p->id, (void *)(unsigned long)p->address, - p->global_irq_base); + pr_info("IOSAPIC (id[0x%x] address[%p] gsi_base[%d])\n", + p->id, (void *)(unsigned long)p->address, + p->global_irq_base); } break; @@ -171,10 +165,9 @@ void acpi_table_print_madt_entry(struct acpi_subtable_header *header) { struct acpi_madt_local_sapic *p = (struct acpi_madt_local_sapic *)header; - printk(KERN_INFO PREFIX - "LSAPIC (acpi_id[0x%02x] lsapic_id[0x%02x] lsapic_eid[0x%02x] %s)\n", - p->processor_id, p->id, p->eid, - (p->lapic_flags & ACPI_MADT_ENABLED) ? "enabled" : "disabled"); + pr_info("LSAPIC (acpi_id[0x%02x] lsapic_id[0x%02x] lsapic_eid[0x%02x] %s)\n", + p->processor_id, p->id, p->eid, + (p->lapic_flags & ACPI_MADT_ENABLED) ? "enabled" : "disabled"); } break; @@ -182,19 +175,17 @@ void acpi_table_print_madt_entry(struct acpi_subtable_header *header) { struct acpi_madt_interrupt_source *p = (struct acpi_madt_interrupt_source *)header; - printk(KERN_INFO PREFIX - "PLAT_INT_SRC (%s %s type[0x%x] id[0x%04x] eid[0x%x] iosapic_vector[0x%x] global_irq[0x%x]\n", - mps_inti_flags_polarity[p->inti_flags & ACPI_MADT_POLARITY_MASK], - mps_inti_flags_trigger[(p->inti_flags & ACPI_MADT_TRIGGER_MASK) >> 2], - p->type, p->id, p->eid, p->io_sapic_vector, - p->global_irq); + pr_info("PLAT_INT_SRC (%s %s type[0x%x] id[0x%04x] eid[0x%x] iosapic_vector[0x%x] global_irq[0x%x]\n", + mps_inti_flags_polarity[p->inti_flags & ACPI_MADT_POLARITY_MASK], + mps_inti_flags_trigger[(p->inti_flags & ACPI_MADT_TRIGGER_MASK) >> 2], + p->type, p->id, p->eid, p->io_sapic_vector, + p->global_irq); } break; default: - printk(KERN_WARNING PREFIX - "Found unsupported MADT entry (type = 0x%x)\n", - header->type); + pr_warn("Found unsupported MADT entry (type = 0x%x)\n", + header->type); break; } } @@ -225,7 +216,7 @@ acpi_table_parse_entries(char *id, acpi_get_table_with_size(id, 0, &table_header, &tbl_size); if (!table_header) { - printk(KERN_WARNING PREFIX "%4.4s not present\n", id); + pr_warn("%4.4s not present\n", id); return -ENODEV; } @@ -248,7 +239,7 @@ acpi_table_parse_entries(char *id, * infinite loop. */ if (entry->length == 0) { - pr_err(PREFIX "[%4.4s:0x%02x] Invalid zero length\n", id, entry_id); + pr_err("[%4.4s:0x%02x] Invalid zero length\n", id, entry_id); goto err; } @@ -256,8 +247,8 @@ acpi_table_parse_entries(char *id, ((unsigned long)entry + entry->length); } if (max_entries && count > max_entries) { - printk(KERN_WARNING PREFIX "[%4.4s:0x%02x] ignored %i entries of " - "%i found\n", id, entry_id, count - max_entries, count); + pr_warn("[%4.4s:0x%02x] ignored %i entries of %i found\n", + id, entry_id, count - max_entries, count); } early_acpi_os_unmap_memory((char *)table_header, tbl_size); @@ -278,12 +269,13 @@ acpi_table_parse_madt(enum acpi_madt_type id, /** * acpi_table_parse - find table with @id, run @handler on it - * * @id: table id to find * @handler: handler to run * * Scan the ACPI System Descriptor Table (STD) for a table matching @id, - * run @handler on it. Return 0 if table found, return on if not. + * run @handler on it. + * + * Return 0 if table found, -errno if not. */ int __init acpi_table_parse(char *id, acpi_tbl_table_handler handler) { @@ -293,7 +285,7 @@ int __init acpi_table_parse(char *id, acpi_tbl_table_handler handler) if (acpi_disabled) return -ENODEV; - if (!handler) + if (!id || !handler) return -EINVAL; if (strncmp(id, ACPI_SIG_MADT, 4) == 0) @@ -306,7 +298,7 @@ int __init acpi_table_parse(char *id, acpi_tbl_table_handler handler) early_acpi_os_unmap_memory(table, tbl_size); return 0; } else - return 1; + return -ENODEV; } /* @@ -321,13 +313,11 @@ static void __init check_multiple_madt(void) acpi_get_table_with_size(ACPI_SIG_MADT, 2, &table, &tbl_size); if (table) { - printk(KERN_WARNING PREFIX - "BIOS bug: multiple APIC/MADT found," - " using %d\n", acpi_apic_instance); - printk(KERN_WARNING PREFIX - "If \"acpi_apic_instance=%d\" works better, " - "notify linux-acpi@vger.kernel.org\n", - acpi_apic_instance ? 0 : 2); + pr_warn("BIOS bug: multiple APIC/MADT found, using %d\n", + acpi_apic_instance); + pr_warn("If \"acpi_apic_instance=%d\" works better, " + "notify linux-acpi@vger.kernel.org\n", + acpi_apic_instance ? 0 : 2); early_acpi_os_unmap_memory(table, tbl_size); } else @@ -349,9 +339,17 @@ int __init acpi_table_init(void) { acpi_status status; + if (acpi_verify_table_checksum) { + pr_info("Early table checksum verification enabled\n"); + acpi_gbl_verify_table_checksum = TRUE; + } else { + pr_info("Early table checksum verification disabled\n"); + acpi_gbl_verify_table_checksum = FALSE; + } + status = acpi_initialize_tables(initial_tables, ACPI_MAX_TABLES, 0); if (ACPI_FAILURE(status)) - return 1; + return -EINVAL; check_multiple_madt(); return 0; @@ -362,12 +360,21 @@ static int __init acpi_parse_apic_instance(char *str) if (!str) return -EINVAL; - acpi_apic_instance = simple_strtoul(str, NULL, 0); + if (kstrtoint(str, 0, &acpi_apic_instance)) + return -EINVAL; - printk(KERN_NOTICE PREFIX "Shall use APIC/MADT table %d\n", - acpi_apic_instance); + pr_notice("Shall use APIC/MADT table %d\n", acpi_apic_instance); return 0; } early_param("acpi_apic_instance", acpi_parse_apic_instance); + +static int __init acpi_force_table_verification_setup(char *s) +{ + acpi_verify_table_checksum = true; + + return 0; +} + +early_param("acpi_force_table_verification", acpi_force_table_verification_setup); diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 0d9f46b5ae6..112817e963e 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -41,10 +41,10 @@ #include <linux/kmod.h> #include <linux/reboot.h> #include <linux/device.h> -#include <asm/uaccess.h> #include <linux/thermal.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> +#include <linux/workqueue.h> +#include <asm/uaccess.h> #define PREFIX "ACPI: " @@ -91,6 +91,8 @@ static int psv; module_param(psv, int, 0644); MODULE_PARM_DESC(psv, "Disable or override all passive trip points."); +static struct workqueue_struct *acpi_thermal_pm_queue; + static int acpi_thermal_add(struct acpi_device *device); static int acpi_thermal_remove(struct acpi_device *device); static void acpi_thermal_notify(struct acpi_device *device, u32 event); @@ -102,9 +104,13 @@ static const struct acpi_device_id thermal_device_ids[] = { MODULE_DEVICE_TABLE(acpi, thermal_device_ids); #ifdef CONFIG_PM_SLEEP +static int acpi_thermal_suspend(struct device *dev); static int acpi_thermal_resume(struct device *dev); +#else +#define acpi_thermal_suspend NULL +#define acpi_thermal_resume NULL #endif -static SIMPLE_DEV_PM_OPS(acpi_thermal_pm, NULL, acpi_thermal_resume); +static SIMPLE_DEV_PM_OPS(acpi_thermal_pm, acpi_thermal_suspend, acpi_thermal_resume); static struct acpi_driver acpi_thermal_driver = { .name = "thermal", @@ -185,6 +191,7 @@ struct acpi_thermal { struct thermal_zone_device *thermal_zone; int tz_enabled; int kelvin_offset; + struct work_struct thermal_check_work; }; /* -------------------------------------------------------------------------- @@ -337,7 +344,7 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) tz->trips.hot.flags.valid = 1; ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found hot threshold [%lu]\n", - tz->trips.critical.temperature)); + tz->trips.hot.temperature)); } } @@ -862,7 +869,7 @@ acpi_thermal_unbind_cooling_device(struct thermal_zone_device *thermal, return acpi_thermal_cooling_device_cb(thermal, cdev, false); } -static const struct thermal_zone_device_ops acpi_thermal_zone_ops = { +static struct thermal_zone_device_ops acpi_thermal_zone_ops = { .bind = acpi_thermal_bind_cooling_device, .unbind = acpi_thermal_unbind_cooling_device, .get_temp = thermal_get_temp, @@ -918,13 +925,10 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz) if (result) return result; - status = acpi_attach_data(tz->device->handle, - acpi_bus_private_data_handler, - tz->thermal_zone); - if (ACPI_FAILURE(status)) { - pr_err(PREFIX "Error attaching device data\n"); + status = acpi_bus_attach_private_data(tz->device->handle, + tz->thermal_zone); + if (ACPI_FAILURE(status)) return -ENODEV; - } tz->tz_enabled = 1; @@ -939,7 +943,7 @@ static void acpi_thermal_unregister_thermal_zone(struct acpi_thermal *tz) sysfs_remove_link(&tz->thermal_zone->device.kobj, "device"); thermal_zone_device_unregister(tz->thermal_zone); tz->thermal_zone = NULL; - acpi_detach_data(tz->device->handle, acpi_bus_private_data_handler); + acpi_bus_detach_private_data(tz->device->handle); } @@ -1063,6 +1067,13 @@ static void acpi_thermal_guess_offset(struct acpi_thermal *tz) tz->kelvin_offset = 2732; } +static void acpi_thermal_check_fn(struct work_struct *work) +{ + struct acpi_thermal *tz = container_of(work, struct acpi_thermal, + thermal_check_work); + acpi_thermal_check(tz); +} + static int acpi_thermal_add(struct acpi_device *device) { int result = 0; @@ -1092,6 +1103,8 @@ static int acpi_thermal_add(struct acpi_device *device) if (result) goto free_memory; + INIT_WORK(&tz->thermal_check_work, acpi_thermal_check_fn); + pr_info(PREFIX "%s [%s] (%ld C)\n", acpi_device_name(device), acpi_device_bid(device), KELVIN_TO_CELSIUS(tz->temperature)); goto end; @@ -1109,6 +1122,7 @@ static int acpi_thermal_remove(struct acpi_device *device) if (!device || !acpi_driver_data(device)) return -EINVAL; + flush_workqueue(acpi_thermal_pm_queue); tz = acpi_driver_data(device); acpi_thermal_unregister_thermal_zone(tz); @@ -1117,6 +1131,13 @@ static int acpi_thermal_remove(struct acpi_device *device) } #ifdef CONFIG_PM_SLEEP +static int acpi_thermal_suspend(struct device *dev) +{ + /* Make sure the previously queued thermal check work has been done */ + flush_workqueue(acpi_thermal_pm_queue); + return 0; +} + static int acpi_thermal_resume(struct device *dev) { struct acpi_thermal *tz; @@ -1147,7 +1168,7 @@ static int acpi_thermal_resume(struct device *dev) tz->state.active |= tz->trips.active[i].flags.enabled; } - acpi_thermal_check(tz); + queue_work(acpi_thermal_pm_queue, &tz->thermal_check_work); return AE_OK; } @@ -1239,17 +1260,23 @@ static int __init acpi_thermal_init(void) return -ENODEV; } + acpi_thermal_pm_queue = create_workqueue("acpi_thermal_pm"); + if (!acpi_thermal_pm_queue) + return -ENODEV; + result = acpi_bus_register_driver(&acpi_thermal_driver); - if (result < 0) + if (result < 0) { + destroy_workqueue(acpi_thermal_pm_queue); return -ENODEV; + } return 0; } static void __exit acpi_thermal_exit(void) { - acpi_bus_unregister_driver(&acpi_thermal_driver); + destroy_workqueue(acpi_thermal_pm_queue); return; } diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index 6d408bfbbb1..07c8c5a5ee9 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -30,8 +30,7 @@ #include <linux/types.h> #include <linux/hardirq.h> #include <linux/acpi.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/dynamic_debug.h> #include "internal.h" @@ -101,10 +100,6 @@ acpi_extract_package(union acpi_object *package, union acpi_object *element = &(package->package.elements[i]); - if (!element) { - return AE_BAD_DATA; - } - switch (element->type) { case ACPI_TYPE_INTEGER: @@ -170,11 +165,10 @@ acpi_extract_package(union acpi_object *package, * Validate output buffer. */ if (buffer->length == ACPI_ALLOCATE_BUFFER) { - buffer->pointer = ACPI_ALLOCATE(size_required); + buffer->pointer = ACPI_ALLOCATE_ZEROED(size_required); if (!buffer->pointer) return AE_NO_MEMORY; buffer->length = size_required; - memset(buffer->pointer, 0, size_required); } else { if (buffer->length < size_required) { buffer->length = size_required; @@ -428,7 +422,7 @@ out: EXPORT_SYMBOL(acpi_get_physical_device_location); /** - * acpi_evaluate_hotplug_ost: Evaluate _OST for hotplug operations + * acpi_evaluate_ost: Evaluate _OST for hotplug operations * @handle: ACPI device handle * @source_event: source event code * @status_code: status code @@ -439,17 +433,15 @@ EXPORT_SYMBOL(acpi_get_physical_device_location); * When the platform does not support _OST, this function has no effect. */ acpi_status -acpi_evaluate_hotplug_ost(acpi_handle handle, u32 source_event, - u32 status_code, struct acpi_buffer *status_buf) +acpi_evaluate_ost(acpi_handle handle, u32 source_event, u32 status_code, + struct acpi_buffer *status_buf) { -#ifdef ACPI_HOTPLUG_OST union acpi_object params[3] = { {.type = ACPI_TYPE_INTEGER,}, {.type = ACPI_TYPE_INTEGER,}, {.type = ACPI_TYPE_BUFFER,} }; struct acpi_object_list arg_list = {3, params}; - acpi_status status; params[0].integer.value = source_event; params[1].integer.value = status_code; @@ -461,13 +453,27 @@ acpi_evaluate_hotplug_ost(acpi_handle handle, u32 source_event, params[2].buffer.length = 0; } - status = acpi_evaluate_object(handle, "_OST", &arg_list, NULL); - return status; -#else - return AE_OK; -#endif + return acpi_evaluate_object(handle, "_OST", &arg_list, NULL); +} +EXPORT_SYMBOL(acpi_evaluate_ost); + +/** + * acpi_handle_path: Return the object path of handle + * + * Caller must free the returned buffer + */ +static char *acpi_handle_path(acpi_handle handle) +{ + struct acpi_buffer buffer = { + .length = ACPI_ALLOCATE_BUFFER, + .pointer = NULL + }; + + if (in_interrupt() || + acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer) != AE_OK) + return NULL; + return buffer.pointer; } -EXPORT_SYMBOL(acpi_evaluate_hotplug_ost); /** * acpi_handle_printk: Print message with ACPI prefix and object path @@ -482,29 +488,50 @@ acpi_handle_printk(const char *level, acpi_handle handle, const char *fmt, ...) { struct va_format vaf; va_list args; - struct acpi_buffer buffer = { - .length = ACPI_ALLOCATE_BUFFER, - .pointer = NULL - }; const char *path; va_start(args, fmt); vaf.fmt = fmt; vaf.va = &args; - if (in_interrupt() || - acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer) != AE_OK) - path = "<n/a>"; - else - path = buffer.pointer; - - printk("%sACPI: %s: %pV", level, path, &vaf); + path = acpi_handle_path(handle); + printk("%sACPI: %s: %pV", level, path ? path : "<n/a>" , &vaf); va_end(args); - kfree(buffer.pointer); + kfree(path); } EXPORT_SYMBOL(acpi_handle_printk); +#if defined(CONFIG_DYNAMIC_DEBUG) +/** + * __acpi_handle_debug: pr_debug with ACPI prefix and object path + * + * This function is called through acpi_handle_debug macro and debug + * prints a message with ACPI prefix and object path. This function + * acquires the global namespace mutex to obtain an object path. In + * interrupt context, it shows the object path as <n/a>. + */ +void +__acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, + const char *fmt, ...) +{ + struct va_format vaf; + va_list args; + const char *path; + + va_start(args, fmt); + vaf.fmt = fmt; + vaf.va = &args; + + path = acpi_handle_path(handle); + __dynamic_pr_debug(descriptor, "ACPI: %s: %pV", path ? path : "<n/a>", &vaf); + + va_end(args); + kfree(path); +} +EXPORT_SYMBOL(__acpi_handle_debug); +#endif + /** * acpi_has_method: Check whether @handle has a method named @name * @handle: ACPI device handle @@ -574,3 +601,100 @@ acpi_status acpi_evaluate_lck(acpi_handle handle, int lock) return status; } + +/** + * acpi_evaluate_dsm - evaluate device's _DSM method + * @handle: ACPI device handle + * @uuid: UUID of requested functions, should be 16 bytes + * @rev: revision number of requested function + * @func: requested function number + * @argv4: the function specific parameter + * + * Evaluate device's _DSM method with specified UUID, revision id and + * function number. Caller needs to free the returned object. + * + * Though ACPI defines the fourth parameter for _DSM should be a package, + * some old BIOSes do expect a buffer or an integer etc. + */ +union acpi_object * +acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, int rev, int func, + union acpi_object *argv4) +{ + acpi_status ret; + struct acpi_buffer buf = {ACPI_ALLOCATE_BUFFER, NULL}; + union acpi_object params[4]; + struct acpi_object_list input = { + .count = 4, + .pointer = params, + }; + + params[0].type = ACPI_TYPE_BUFFER; + params[0].buffer.length = 16; + params[0].buffer.pointer = (char *)uuid; + params[1].type = ACPI_TYPE_INTEGER; + params[1].integer.value = rev; + params[2].type = ACPI_TYPE_INTEGER; + params[2].integer.value = func; + if (argv4) { + params[3] = *argv4; + } else { + params[3].type = ACPI_TYPE_PACKAGE; + params[3].package.count = 0; + params[3].package.elements = NULL; + } + + ret = acpi_evaluate_object(handle, "_DSM", &input, &buf); + if (ACPI_SUCCESS(ret)) + return (union acpi_object *)buf.pointer; + + if (ret != AE_NOT_FOUND) + acpi_handle_warn(handle, + "failed to evaluate _DSM (0x%x)\n", ret); + + return NULL; +} +EXPORT_SYMBOL(acpi_evaluate_dsm); + +/** + * acpi_check_dsm - check if _DSM method supports requested functions. + * @handle: ACPI device handle + * @uuid: UUID of requested functions, should be 16 bytes at least + * @rev: revision number of requested functions + * @funcs: bitmap of requested functions + * @exclude: excluding special value, used to support i915 and nouveau + * + * Evaluate device's _DSM method to check whether it supports requested + * functions. Currently only support 64 functions at maximum, should be + * enough for now. + */ +bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, int rev, u64 funcs) +{ + int i; + u64 mask = 0; + union acpi_object *obj; + + if (funcs == 0) + return false; + + obj = acpi_evaluate_dsm(handle, uuid, rev, 0, NULL); + if (!obj) + return false; + + /* For compatibility, old BIOSes may return an integer */ + if (obj->type == ACPI_TYPE_INTEGER) + mask = obj->integer.value; + else if (obj->type == ACPI_TYPE_BUFFER) + for (i = 0; i < obj->buffer.length && i < 8; i++) + mask |= (((u8)obj->buffer.pointer[i]) << (i * 8)); + ACPI_FREE(obj); + + /* + * Bit 0 indicates whether there's support for any functions other than + * function 0 for the specified UUID and revision. + */ + if ((mask & 0x1) && (mask & funcs) == funcs) + return true; + + return false; +} +EXPORT_SYMBOL(acpi_check_dsm); diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 995e91bcb97..350d52a8f78 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -37,17 +37,14 @@ #include <linux/pci.h> #include <linux/pci_ids.h> #include <linux/slab.h> -#include <asm/uaccess.h> #include <linux/dmi.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> #include <linux/suspend.h> +#include <linux/acpi.h> #include <acpi/video.h> +#include <asm/uaccess.h> #include "internal.h" -#define PREFIX "ACPI: " - #define ACPI_VIDEO_BUS_NAME "Video Bus" #define ACPI_VIDEO_DEVICE_NAME "Video Device" #define ACPI_VIDEO_NOTIFY_SWITCH 0x80 @@ -82,11 +79,12 @@ static bool allow_duplicates; module_param(allow_duplicates, bool, 0644); /* - * For Windows 8 systems: if set ture and the GPU driver has - * registered a backlight interface, skip registering ACPI video's. + * For Windows 8 systems: used to decide if video module + * should skip registering backlight interface of its own. */ -static bool use_native_backlight = false; -module_param(use_native_backlight, bool, 0644); +static int use_native_backlight_param = 1; +module_param_named(use_native_backlight, use_native_backlight_param, int, 0444); +static bool use_native_backlight_dmi = false; static int register_count; static struct mutex video_list_lock; @@ -152,6 +150,8 @@ struct acpi_video_enumerated_device { struct acpi_video_bus { struct acpi_device *device; + bool backlight_registered; + bool backlight_notifier_registered; u8 dos_setting; struct acpi_video_enumerated_device *attached_array; u8 attached_count; @@ -163,6 +163,7 @@ struct acpi_video_bus { struct input_dev *input; char phys[32]; /* for input device */ struct notifier_block pm_nb; + struct notifier_block backlight_nb; }; struct acpi_video_device_flags { @@ -232,13 +233,22 @@ static int acpi_video_get_next_level(struct acpi_video_device *device, static int acpi_video_switch_brightness(struct acpi_video_device *device, int event); -static bool acpi_video_verify_backlight_support(void) +static bool acpi_video_use_native_backlight(void) { - if (acpi_osi_is_win8() && use_native_backlight && + if (use_native_backlight_param != -1) + return use_native_backlight_param; + else + return use_native_backlight_dmi; +} + +bool acpi_video_verify_backlight_support(void) +{ + if (acpi_osi_is_win8() && acpi_video_use_native_backlight() && backlight_device_registered(BACKLIGHT_RAW)) return false; return acpi_video_backlight_support(); } +EXPORT_SYMBOL_GPL(acpi_video_verify_backlight_support); /* backlight device sysfs support */ static int acpi_video_get_brightness(struct backlight_device *bd) @@ -399,6 +409,12 @@ static int __init video_set_bqc_offset(const struct dmi_system_id *d) return 0; } +static int __init video_set_use_native_backlight(const struct dmi_system_id *d) +{ + use_native_backlight_dmi = true; + return 0; +} + static struct dmi_system_id video_dmi_table[] __initdata = { /* * Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121 @@ -443,6 +459,192 @@ static struct dmi_system_id video_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7720"), }, }, + { + .callback = video_set_use_native_backlight, + .ident = "ThinkPad T430 and T430s", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T430"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "ThinkPad X230", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X230"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "ThinkPad W530", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W530"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "ThinkPad X1 Carbon", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X1 Carbon"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "Lenovo Yoga 13", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo IdeaPad Yoga 13"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "Lenovo Yoga 2 11", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Yoga 2 11"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "Thinkpad Helix", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad Helix"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "Dell Inspiron 7520", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7520"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "Acer Aspire 5733Z", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5733Z"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "Acer Aspire 5742G", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5742G"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "Acer Aspire V5-171", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "V5-171"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "Acer Aspire V5-431", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "Aspire V5-431"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "Acer Aspire V5-471G", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "Aspire V5-471G"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "Acer TravelMate B113", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate B113"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "HP ProBook 4340s", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_VERSION, "HP ProBook 4340s"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "HP ProBook 4540s", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_VERSION, "HP ProBook 4540s"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "HP ProBook 2013 models", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP ProBook "), + DMI_MATCH(DMI_PRODUCT_NAME, " G1"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "HP EliteBook 2013 models", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP EliteBook "), + DMI_MATCH(DMI_PRODUCT_NAME, " G1"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "HP ZBook 14", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP ZBook 14"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "HP ZBook 15", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP ZBook 15"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "HP ZBook 17", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP ZBook 17"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "HP EliteBook 8470p", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP EliteBook 8470p"), + }, + }, + { + .callback = video_set_use_native_backlight, + .ident = "HP EliteBook 8780w", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP EliteBook 8780w"), + }, + }, {} }; @@ -686,6 +888,7 @@ acpi_video_init_brightness(struct acpi_video_device *device) union acpi_object *o; struct acpi_video_device_brightness *br = NULL; int result = -EINVAL; + u32 value; if (!ACPI_SUCCESS(acpi_video_device_lcd_query_levels(device, &obj))) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Could not query available " @@ -716,7 +919,12 @@ acpi_video_init_brightness(struct acpi_video_device *device) printk(KERN_ERR PREFIX "Invalid data\n"); continue; } - br->levels[count] = (u32) o->integer.value; + value = (u32) o->integer.value; + /* Skip duplicate entries */ + if (count > 2 && br->levels[count - 1] == value) + continue; + + br->levels[count] = value; if (br->levels[count] > max_level) max_level = br->levels[count]; @@ -1510,88 +1718,92 @@ acpi_video_bus_match(acpi_handle handle, u32 level, void *context, static void acpi_video_dev_register_backlight(struct acpi_video_device *device) { - if (acpi_video_verify_backlight_support()) { - struct backlight_properties props; - struct pci_dev *pdev; - acpi_handle acpi_parent; - struct device *parent = NULL; - int result; - static int count; - char *name; - - result = acpi_video_init_brightness(device); - if (result) - return; - name = kasprintf(GFP_KERNEL, "acpi_video%d", count); - if (!name) - return; - count++; + struct backlight_properties props; + struct pci_dev *pdev; + acpi_handle acpi_parent; + struct device *parent = NULL; + int result; + static int count; + char *name; - acpi_get_parent(device->dev->handle, &acpi_parent); + result = acpi_video_init_brightness(device); + if (result) + return; + name = kasprintf(GFP_KERNEL, "acpi_video%d", count); + if (!name) + return; + count++; - pdev = acpi_get_pci_dev(acpi_parent); - if (pdev) { - parent = &pdev->dev; - pci_dev_put(pdev); - } + acpi_get_parent(device->dev->handle, &acpi_parent); - memset(&props, 0, sizeof(struct backlight_properties)); - props.type = BACKLIGHT_FIRMWARE; - props.max_brightness = device->brightness->count - 3; - device->backlight = backlight_device_register(name, - parent, - device, - &acpi_backlight_ops, - &props); - kfree(name); - if (IS_ERR(device->backlight)) - return; + pdev = acpi_get_pci_dev(acpi_parent); + if (pdev) { + parent = &pdev->dev; + pci_dev_put(pdev); + } - /* - * Save current brightness level in case we have to restore it - * before acpi_video_device_lcd_set_level() is called next time. - */ - device->backlight->props.brightness = - acpi_video_get_brightness(device->backlight); + memset(&props, 0, sizeof(struct backlight_properties)); + props.type = BACKLIGHT_FIRMWARE; + props.max_brightness = device->brightness->count - 3; + device->backlight = backlight_device_register(name, + parent, + device, + &acpi_backlight_ops, + &props); + kfree(name); + if (IS_ERR(device->backlight)) + return; - device->cooling_dev = thermal_cooling_device_register("LCD", - device->dev, &video_cooling_ops); - if (IS_ERR(device->cooling_dev)) { - /* - * Set cooling_dev to NULL so we don't crash trying to - * free it. - * Also, why the hell we are returning early and - * not attempt to register video output if cooling - * device registration failed? - * -- dtor - */ - device->cooling_dev = NULL; - return; - } + /* + * Save current brightness level in case we have to restore it + * before acpi_video_device_lcd_set_level() is called next time. + */ + device->backlight->props.brightness = + acpi_video_get_brightness(device->backlight); - dev_info(&device->dev->dev, "registered as cooling_device%d\n", - device->cooling_dev->id); - result = sysfs_create_link(&device->dev->dev.kobj, - &device->cooling_dev->device.kobj, - "thermal_cooling"); - if (result) - printk(KERN_ERR PREFIX "Create sysfs link\n"); - result = sysfs_create_link(&device->cooling_dev->device.kobj, - &device->dev->dev.kobj, "device"); - if (result) - printk(KERN_ERR PREFIX "Create sysfs link\n"); + device->cooling_dev = thermal_cooling_device_register("LCD", + device->dev, &video_cooling_ops); + if (IS_ERR(device->cooling_dev)) { + /* + * Set cooling_dev to NULL so we don't crash trying to free it. + * Also, why the hell we are returning early and not attempt to + * register video output if cooling device registration failed? + * -- dtor + */ + device->cooling_dev = NULL; + return; } + + dev_info(&device->dev->dev, "registered as cooling_device%d\n", + device->cooling_dev->id); + result = sysfs_create_link(&device->dev->dev.kobj, + &device->cooling_dev->device.kobj, + "thermal_cooling"); + if (result) + printk(KERN_ERR PREFIX "Create sysfs link\n"); + result = sysfs_create_link(&device->cooling_dev->device.kobj, + &device->dev->dev.kobj, "device"); + if (result) + printk(KERN_ERR PREFIX "Create sysfs link\n"); } static int acpi_video_bus_register_backlight(struct acpi_video_bus *video) { struct acpi_video_device *dev; + if (video->backlight_registered) + return 0; + + if (!acpi_video_verify_backlight_support()) + return 0; + mutex_lock(&video->device_list_lock); list_for_each_entry(dev, &video->video_device_list, entry) acpi_video_dev_register_backlight(dev); mutex_unlock(&video->device_list_lock); + video->backlight_registered = true; + video->pm_nb.notifier_call = acpi_video_resume; video->pm_nb.priority = 0; return register_pm_notifier(&video->pm_nb); @@ -1619,13 +1831,20 @@ static void acpi_video_dev_unregister_backlight(struct acpi_video_device *device static int acpi_video_bus_unregister_backlight(struct acpi_video_bus *video) { struct acpi_video_device *dev; - int error = unregister_pm_notifier(&video->pm_nb); + int error; + + if (!video->backlight_registered) + return 0; + + error = unregister_pm_notifier(&video->pm_nb); mutex_lock(&video->device_list_lock); list_for_each_entry(dev, &video->video_device_list, entry) acpi_video_dev_unregister_backlight(dev); mutex_unlock(&video->device_list_lock); + video->backlight_registered = false; + return error; } @@ -1719,6 +1938,56 @@ static void acpi_video_bus_remove_notify_handler(struct acpi_video_bus *video) video->input = NULL; } +static int acpi_video_backlight_notify(struct notifier_block *nb, + unsigned long val, void *bd) +{ + struct backlight_device *backlight = bd; + struct acpi_video_bus *video; + + /* acpi_video_verify_backlight_support only cares about raw devices */ + if (backlight->props.type != BACKLIGHT_RAW) + return NOTIFY_DONE; + + video = container_of(nb, struct acpi_video_bus, backlight_nb); + + switch (val) { + case BACKLIGHT_REGISTERED: + if (!acpi_video_verify_backlight_support()) + acpi_video_bus_unregister_backlight(video); + break; + case BACKLIGHT_UNREGISTERED: + acpi_video_bus_register_backlight(video); + break; + } + + return NOTIFY_OK; +} + +static int acpi_video_bus_add_backlight_notify_handler( + struct acpi_video_bus *video) +{ + int error; + + video->backlight_nb.notifier_call = acpi_video_backlight_notify; + video->backlight_nb.priority = 0; + error = backlight_register_notifier(&video->backlight_nb); + if (error == 0) + video->backlight_notifier_registered = true; + + return error; +} + +static int acpi_video_bus_remove_backlight_notify_handler( + struct acpi_video_bus *video) +{ + if (!video->backlight_notifier_registered) + return 0; + + video->backlight_notifier_registered = false; + + return backlight_unregister_notifier(&video->backlight_nb); +} + static int acpi_video_bus_put_devices(struct acpi_video_bus *video) { struct acpi_video_device *dev, *next; @@ -1800,6 +2069,7 @@ static int acpi_video_bus_add(struct acpi_device *device) acpi_video_bus_register_backlight(video); acpi_video_bus_add_notify_handler(video); + acpi_video_bus_add_backlight_notify_handler(video); return 0; @@ -1823,6 +2093,7 @@ static int acpi_video_bus_remove(struct acpi_device *device) video = acpi_driver_data(device); + acpi_video_bus_remove_backlight_notify_handler(video); acpi_video_bus_remove_notify_handler(video); acpi_video_bus_unregister_backlight(video); acpi_video_bus_put_devices(video); @@ -1913,6 +2184,20 @@ void acpi_video_unregister(void) } EXPORT_SYMBOL(acpi_video_unregister); +void acpi_video_unregister_backlight(void) +{ + struct acpi_video_bus *video; + + if (!register_count) + return; + + mutex_lock(&video_list_lock); + list_for_each_entry(video, &video_bus_head, entry) + acpi_video_bus_unregister_backlight(video); + mutex_unlock(&video_list_lock); +} +EXPORT_SYMBOL(acpi_video_unregister_backlight); + /* * This is kind of nasty. Hardware using Intel chipsets may require * the video opregion code to be run first in order to initialise diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index 84875fd4c74..c42feb2bacd 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -40,8 +40,6 @@ #include "internal.h" -#define PREFIX "ACPI: " - ACPI_MODULE_NAME("video"); #define _COMPONENT ACPI_VIDEO_COMPONENT @@ -50,7 +48,7 @@ static bool acpi_video_caps_checked; static acpi_status acpi_backlight_cap_match(acpi_handle handle, u32 level, void *context, - void **retyurn_value) + void **return_value) { long *cap = context; @@ -170,10 +168,10 @@ static struct dmi_system_id video_detect_dmi_table[] = { }, { .callback = video_detect_force_vendor, - .ident = "Lenovo Yoga 13", + .ident = "Dell Inspiron 5737", .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo IdeaPad Yoga 13"), + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5737"), }, }, { }, diff --git a/drivers/acpi/wakeup.c b/drivers/acpi/wakeup.c index 7bfbe40bc43..1638401ab28 100644 --- a/drivers/acpi/wakeup.c +++ b/drivers/acpi/wakeup.c @@ -5,7 +5,6 @@ #include <linux/init.h> #include <linux/acpi.h> -#include <acpi/acpi_drivers.h> #include <linux/kernel.h> #include <linux/types.h> |