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-rw-r--r--drivers/acpi/acpica/Makefile27
-rw-r--r--drivers/acpi/acpica/aclocal.h7
-rw-r--r--drivers/acpi/bus.c2
-rw-r--r--drivers/acpi/pci_bind.c24
-rw-r--r--drivers/acpi/processor_idle.c50
-rw-r--r--drivers/acpi/processor_perflib.c12
-rw-r--r--drivers/acpi/processor_throttling.c25
-rw-r--r--drivers/acpi/video.c56
8 files changed, 157 insertions, 46 deletions
diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile
index 17e50824a6f..72ac28da14e 100644
--- a/drivers/acpi/acpica/Makefile
+++ b/drivers/acpi/acpica/Makefile
@@ -5,40 +5,43 @@
ccflags-y := -Os
ccflags-$(CONFIG_ACPI_DEBUG) += -DACPI_DEBUG_OUTPUT
-obj-y := dsfield.o dsmthdat.o dsopcode.o dswexec.o dswscope.o \
+# use acpi.o to put all files here into acpi.o modparam namespace
+obj-y += acpi.o
+
+acpi-y := dsfield.o dsmthdat.o dsopcode.o dswexec.o dswscope.o \
dsmethod.o dsobject.o dsutils.o dswload.o dswstate.o \
dsinit.o
-obj-y += evevent.o evregion.o evsci.o evxfevnt.o \
+acpi-y += evevent.o evregion.o evsci.o evxfevnt.o \
evmisc.o evrgnini.o evxface.o evxfregn.o \
evgpe.o evgpeblk.o
-obj-y += exconfig.o exfield.o exnames.o exoparg6.o exresolv.o exstorob.o\
+acpi-y += exconfig.o exfield.o exnames.o exoparg6.o exresolv.o exstorob.o\
exconvrt.o exfldio.o exoparg1.o exprep.o exresop.o exsystem.o\
excreate.o exmisc.o exoparg2.o exregion.o exstore.o exutils.o \
exdump.o exmutex.o exoparg3.o exresnte.o exstoren.o
-obj-y += hwacpi.o hwgpe.o hwregs.o hwsleep.o hwxface.o hwvalid.o
+acpi-y += hwacpi.o hwgpe.o hwregs.o hwsleep.o hwxface.o hwvalid.o
-obj-$(ACPI_FUTURE_USAGE) += hwtimer.o
+acpi-$(ACPI_FUTURE_USAGE) += hwtimer.o
-obj-y += nsaccess.o nsload.o nssearch.o nsxfeval.o \
+acpi-y += nsaccess.o nsload.o nssearch.o nsxfeval.o \
nsalloc.o nseval.o nsnames.o nsutils.o nsxfname.o \
nsdump.o nsinit.o nsobject.o nswalk.o nsxfobj.o \
nsparse.o nspredef.o
-obj-$(ACPI_FUTURE_USAGE) += nsdumpdv.o
+acpi-$(ACPI_FUTURE_USAGE) += nsdumpdv.o
-obj-y += psargs.o psparse.o psloop.o pstree.o pswalk.o \
+acpi-y += psargs.o psparse.o psloop.o pstree.o pswalk.o \
psopcode.o psscope.o psutils.o psxface.o
-obj-y += rsaddr.o rscreate.o rsinfo.o rsio.o rslist.o rsmisc.o rsxface.o \
+acpi-y += rsaddr.o rscreate.o rsinfo.o rsio.o rslist.o rsmisc.o rsxface.o \
rscalc.o rsirq.o rsmemory.o rsutils.o
-obj-$(ACPI_FUTURE_USAGE) += rsdump.o
+acpi-$(ACPI_FUTURE_USAGE) += rsdump.o
-obj-y += tbxface.o tbinstal.o tbutils.o tbfind.o tbfadt.o tbxfroot.o
+acpi-y += tbxface.o tbinstal.o tbutils.o tbfind.o tbfadt.o tbxfroot.o
-obj-y += utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \
+acpi-y += utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \
utcopy.o utdelete.o utglobal.o utmath.o utobject.o \
utstate.o utmutex.o utobject.o utresrc.o utlock.o
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index 772ee5c4ccc..2ec394a328e 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -787,7 +787,12 @@ struct acpi_bit_register_info {
/* For control registers, both ignored and reserved bits must be preserved */
-#define ACPI_PM1_CONTROL_IGNORED_BITS 0x0201 /* Bits 9, 0(SCI_EN) */
+/*
+ * The ACPI spec says to ignore PM1_CTL.SCI_EN (bit 0)
+ * but we need to be able to write ACPI_BITREG_SCI_ENABLE directly
+ * as a BIOS workaround on some machines.
+ */
+#define ACPI_PM1_CONTROL_IGNORED_BITS 0x0200 /* Bits 9 */
#define ACPI_PM1_CONTROL_RESERVED_BITS 0xC1F8 /* Bits 14-15, 3-8 */
#define ACPI_PM1_CONTROL_PRESERVED_BITS \
(ACPI_PM1_CONTROL_IGNORED_BITS | ACPI_PM1_CONTROL_RESERVED_BITS)
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index e8f7b64e92d..ae862f1798d 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -312,7 +312,7 @@ int acpi_bus_set_power(acpi_handle handle, int state)
end:
if (result)
printk(KERN_WARNING PREFIX
- "Transitioning device [%s] to D%d\n",
+ "Device [%s] failed to transition to D%d\n",
device->pnp.bus_id, state);
else {
device->power.state = state;
diff --git a/drivers/acpi/pci_bind.c b/drivers/acpi/pci_bind.c
index 95650f83ce2..bc46de3d967 100644
--- a/drivers/acpi/pci_bind.c
+++ b/drivers/acpi/pci_bind.c
@@ -116,9 +116,6 @@ int acpi_pci_bind(struct acpi_device *device)
struct acpi_pci_data *pdata;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
acpi_handle handle;
- struct pci_dev *dev;
- struct pci_bus *bus;
-
if (!device || !device->parent)
return -EINVAL;
@@ -176,20 +173,9 @@ int acpi_pci_bind(struct acpi_device *device)
* Locate matching device in PCI namespace. If it doesn't exist
* this typically means that the device isn't currently inserted
* (e.g. docking station, port replicator, etc.).
- * We cannot simply search the global pci device list, since
- * PCI devices are added to the global pci list when the root
- * bridge start ops are run, which may not have happened yet.
*/
- bus = pci_find_bus(data->id.segment, data->id.bus);
- if (bus) {
- list_for_each_entry(dev, &bus->devices, bus_list) {
- if (dev->devfn == PCI_DEVFN(data->id.device,
- data->id.function)) {
- data->dev = dev;
- break;
- }
- }
- }
+ data->dev = pci_get_slot(pdata->bus,
+ PCI_DEVFN(data->id.device, data->id.function));
if (!data->dev) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Device %04x:%02x:%02x.%d not present in PCI namespace\n",
@@ -259,9 +245,10 @@ int acpi_pci_bind(struct acpi_device *device)
end:
kfree(buffer.pointer);
- if (result)
+ if (result) {
+ pci_dev_put(data->dev);
kfree(data);
-
+ }
return result;
}
@@ -303,6 +290,7 @@ static int acpi_pci_unbind(struct acpi_device *device)
if (data->dev->subordinate) {
acpi_pci_irq_del_prt(data->id.segment, data->bus->number);
}
+ pci_dev_put(data->dev);
kfree(data);
end:
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index f7ca8c55956..10a2d913635 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -148,6 +148,9 @@ static void acpi_timer_check_state(int state, struct acpi_processor *pr,
if (cpu_has(&cpu_data(pr->id), X86_FEATURE_ARAT))
return;
+ if (boot_cpu_has(X86_FEATURE_AMDC1E))
+ type = ACPI_STATE_C1;
+
/*
* Check, if one of the previous states already marked the lapic
* unstable
@@ -202,21 +205,44 @@ static void acpi_state_timer_broadcast(struct acpi_processor *pr,
* Suspend / resume control
*/
static int acpi_idle_suspend;
+static u32 saved_bm_rld;
+
+static void acpi_idle_bm_rld_save(void)
+{
+ acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_RLD, &saved_bm_rld);
+}
+static void acpi_idle_bm_rld_restore(void)
+{
+ u32 resumed_bm_rld;
+
+ acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_RLD, &resumed_bm_rld);
+
+ if (resumed_bm_rld != saved_bm_rld)
+ acpi_write_bit_register(ACPI_BITREG_BUS_MASTER_RLD, saved_bm_rld);
+}
int acpi_processor_suspend(struct acpi_device * device, pm_message_t state)
{
+ if (acpi_idle_suspend == 1)
+ return 0;
+
+ acpi_idle_bm_rld_save();
acpi_idle_suspend = 1;
return 0;
}
int acpi_processor_resume(struct acpi_device * device)
{
+ if (acpi_idle_suspend == 0)
+ return 0;
+
+ acpi_idle_bm_rld_restore();
acpi_idle_suspend = 0;
return 0;
}
#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86)
-static int tsc_halts_in_c(int state)
+static void tsc_check_state(int state)
{
switch (boot_cpu_data.x86_vendor) {
case X86_VENDOR_AMD:
@@ -226,13 +252,17 @@ static int tsc_halts_in_c(int state)
* C/P/S0/S1 states when this bit is set.
*/
if (boot_cpu_has(X86_FEATURE_NONSTOP_TSC))
- return 0;
+ return;
/*FALL THROUGH*/
default:
- return state > ACPI_STATE_C1;
+ /* TSC could halt in idle, so notify users */
+ if (state > ACPI_STATE_C1)
+ mark_tsc_unstable("TSC halts in idle");
}
}
+#else
+static void tsc_check_state(int state) { return; }
#endif
static int acpi_processor_get_power_info_fadt(struct acpi_processor *pr)
@@ -578,17 +608,13 @@ static int acpi_processor_power_verify(struct acpi_processor *pr)
pr->power.timer_broadcast_on_state = INT_MAX;
- for (i = 1; i < ACPI_PROCESSOR_MAX_POWER; i++) {
+ for (i = 1; i < ACPI_PROCESSOR_MAX_POWER && i <= max_cstate; i++) {
struct acpi_processor_cx *cx = &pr->power.states[i];
-#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86)
- /* TSC could halt in idle, so notify users */
- if (tsc_halts_in_c(cx->type))
- mark_tsc_unstable("TSC halts in idle");;
-#endif
switch (cx->type) {
case ACPI_STATE_C1:
cx->valid = 1;
+ acpi_timer_check_state(i, pr, cx);
break;
case ACPI_STATE_C2:
@@ -603,6 +629,8 @@ static int acpi_processor_power_verify(struct acpi_processor *pr)
acpi_timer_check_state(i, pr, cx);
break;
}
+ if (cx->valid)
+ tsc_check_state(cx->type);
if (cx->valid)
working++;
@@ -806,11 +834,12 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev,
/* Do not access any ACPI IO ports in suspend path */
if (acpi_idle_suspend) {
- acpi_safe_halt();
local_irq_enable();
+ cpu_relax();
return 0;
}
+ acpi_state_timer_broadcast(pr, cx, 1);
kt1 = ktime_get_real();
acpi_idle_do_entry(cx);
kt2 = ktime_get_real();
@@ -818,6 +847,7 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev,
local_irq_enable();
cx->usage++;
+ acpi_state_timer_broadcast(pr, cx, 0);
return idle_time;
}
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index cafb41000f6..60e543d3234 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -309,9 +309,15 @@ static int acpi_processor_get_performance_states(struct acpi_processor *pr)
(u32) px->bus_master_latency,
(u32) px->control, (u32) px->status));
- if (!px->core_frequency) {
- printk(KERN_ERR PREFIX
- "Invalid _PSS data: freq is zero\n");
+ /*
+ * Check that ACPI's u64 MHz will be valid as u32 KHz in cpufreq
+ */
+ if (!px->core_frequency ||
+ ((u32)(px->core_frequency * 1000) !=
+ (px->core_frequency * 1000))) {
+ printk(KERN_ERR FW_BUG PREFIX
+ "Invalid BIOS _PSS frequency: 0x%llx MHz\n",
+ px->core_frequency);
result = -EFAULT;
kfree(pr->performance->states);
goto end;
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index d0d1f4d5043..227543789ba 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -45,6 +45,14 @@
#define _COMPONENT ACPI_PROCESSOR_COMPONENT
ACPI_MODULE_NAME("processor_throttling");
+/* ignore_tpc:
+ * 0 -> acpi processor driver doesn't ignore _TPC values
+ * 1 -> acpi processor driver ignores _TPC values
+ */
+static int ignore_tpc;
+module_param(ignore_tpc, int, 0644);
+MODULE_PARM_DESC(ignore_tpc, "Disable broken BIOS _TPC throttling support");
+
struct throttling_tstate {
unsigned int cpu; /* cpu nr */
int target_state; /* target T-state */
@@ -283,6 +291,10 @@ static int acpi_processor_get_platform_limit(struct acpi_processor *pr)
if (!pr)
return -EINVAL;
+
+ if (ignore_tpc)
+ goto end;
+
status = acpi_evaluate_integer(pr->handle, "_TPC", NULL, &tpc);
if (ACPI_FAILURE(status)) {
if (status != AE_NOT_FOUND) {
@@ -290,6 +302,8 @@ static int acpi_processor_get_platform_limit(struct acpi_processor *pr)
}
return -ENODEV;
}
+
+end:
pr->throttling_platform_limit = (int)tpc;
return 0;
}
@@ -302,6 +316,9 @@ int acpi_processor_tstate_has_changed(struct acpi_processor *pr)
struct acpi_processor_limit *limit;
int target_state;
+ if (ignore_tpc)
+ return 0;
+
result = acpi_processor_get_platform_limit(pr);
if (result) {
/* Throttling Limit is unsupported */
@@ -821,6 +838,14 @@ static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr)
ret = acpi_read_throttling_status(pr, &value);
if (ret >= 0) {
state = acpi_get_throttling_state(pr, value);
+ if (state == -1) {
+ ACPI_WARNING((AE_INFO,
+ "Invalid throttling state, reset"));
+ state = 0;
+ ret = acpi_processor_set_throttling(pr, state);
+ if (ret)
+ return ret;
+ }
pr->throttling.state = state;
}
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index d7ff61c0d57..1bdfb37377e 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -538,6 +538,57 @@ acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level)
return -EINVAL;
}
+/*
+ * For some buggy _BQC methods, we need to add a constant value to
+ * the _BQC return value to get the actual current brightness level
+ */
+
+static int bqc_offset_aml_bug_workaround;
+static int __init video_set_bqc_offset(const struct dmi_system_id *d)
+{
+ bqc_offset_aml_bug_workaround = 9;
+ return 0;
+}
+
+static struct dmi_system_id video_dmi_table[] __initdata = {
+ /*
+ * Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121
+ */
+ {
+ .callback = video_set_bqc_offset,
+ .ident = "Acer Aspire 5720",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5720"),
+ },
+ },
+ {
+ .callback = video_set_bqc_offset,
+ .ident = "Acer Aspire 5710Z",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5710Z"),
+ },
+ },
+ {
+ .callback = video_set_bqc_offset,
+ .ident = "eMachines E510",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "EMACHINES"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "eMachines E510"),
+ },
+ },
+ {
+ .callback = video_set_bqc_offset,
+ .ident = "Acer Aspire 5315",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5315"),
+ },
+ },
+ {}
+};
+
static int
acpi_video_device_lcd_get_level_current(struct acpi_video_device *device,
unsigned long long *level)
@@ -557,6 +608,7 @@ acpi_video_device_lcd_get_level_current(struct acpi_video_device *device,
*level = device->brightness->levels[*level + 2];
}
+ *level += bqc_offset_aml_bug_workaround;
device->brightness->curr = *level;
return 0;
} else {
@@ -2290,13 +2342,15 @@ EXPORT_SYMBOL(acpi_video_register);
static int __init acpi_video_init(void)
{
+ dmi_check_system(video_dmi_table);
+
if (intel_opregion_present())
return 0;
return acpi_video_register();
}
-void __exit acpi_video_exit(void)
+void acpi_video_exit(void)
{
acpi_bus_unregister_driver(&acpi_video_bus);
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-20 20:06:15 +0000