diff options
Diffstat (limited to 'arch/x86/pci/common.c')
| -rw-r--r-- | arch/x86/pci/common.c | 264 |
1 files changed, 126 insertions, 138 deletions
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index f7c8a399978..059a76c2973 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -6,22 +6,26 @@ #include <linux/sched.h> #include <linux/pci.h> +#include <linux/pci-acpi.h> #include <linux/ioport.h> #include <linux/init.h> #include <linux/dmi.h> #include <linux/slab.h> +#include <asm-generic/pci-bridge.h> #include <asm/acpi.h> #include <asm/segment.h> #include <asm/io.h> #include <asm/smp.h> #include <asm/pci_x86.h> +#include <asm/setup.h> unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 | PCI_PROBE_MMCONF; unsigned int pci_early_dump_regs; static int pci_bf_sort; +static int smbios_type_b1_flag; int pci_routeirq; int noioapicquirk; #ifdef CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS @@ -31,9 +35,8 @@ int noioapicreroute = 1; #endif int pcibios_last_bus = -1; unsigned long pirq_table_addr; -struct pci_bus *pci_root_bus; -struct pci_raw_ops *raw_pci_ops; -struct pci_raw_ops *raw_pci_ext_ops; +const struct pci_raw_ops *__read_mostly raw_pci_ops; +const struct pci_raw_ops *__read_mostly raw_pci_ext_ops; int raw_pci_read(unsigned int domain, unsigned int bus, unsigned int devfn, int reg, int len, u32 *val) @@ -78,14 +81,14 @@ struct pci_ops pci_root_ops = { */ DEFINE_RAW_SPINLOCK(pci_config_lock); -static int __devinit can_skip_ioresource_align(const struct dmi_system_id *d) +static int can_skip_ioresource_align(const struct dmi_system_id *d) { pci_probe |= PCI_CAN_SKIP_ISA_ALIGN; printk(KERN_INFO "PCI: %s detected, can skip ISA alignment\n", d->ident); return 0; } -static const struct dmi_system_id can_skip_pciprobe_dmi_table[] __devinitconst = { +static const struct dmi_system_id can_skip_pciprobe_dmi_table[] = { /* * Systems where PCI IO resource ISA alignment can be skipped * when the ISA enable bit in the bridge control is not set @@ -122,7 +125,7 @@ void __init dmi_check_skip_isa_align(void) dmi_check_system(can_skip_pciprobe_dmi_table); } -static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev) +static void pcibios_fixup_device_resources(struct pci_dev *dev) { struct resource *rom_r = &dev->resource[PCI_ROM_RESOURCE]; struct resource *bar_r; @@ -159,24 +162,31 @@ static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev) * are examined. */ -void __devinit pcibios_fixup_bus(struct pci_bus *b) +void pcibios_fixup_bus(struct pci_bus *b) { struct pci_dev *dev; - /* root bus? */ - if (!b->parent) - x86_pci_root_bus_res_quirks(b); pci_read_bridge_bases(b); list_for_each_entry(dev, &b->devices, bus_list) pcibios_fixup_device_resources(dev); } +void pcibios_add_bus(struct pci_bus *bus) +{ + acpi_pci_add_bus(bus); +} + +void pcibios_remove_bus(struct pci_bus *bus) +{ + acpi_pci_remove_bus(bus); +} + /* * Only use DMI information to set this if nothing was passed * on the kernel command line (which was parsed earlier). */ -static int __devinit set_bf_sort(const struct dmi_system_id *d) +static int set_bf_sort(const struct dmi_system_id *d) { if (pci_bf_sort == pci_bf_sort_default) { pci_bf_sort = pci_dmi_bf; @@ -185,11 +195,44 @@ static int __devinit set_bf_sort(const struct dmi_system_id *d) return 0; } +static void read_dmi_type_b1(const struct dmi_header *dm, + void *private_data) +{ + u8 *d = (u8 *)dm + 4; + + if (dm->type != 0xB1) + return; + switch (((*(u32 *)d) >> 9) & 0x03) { + case 0x00: + printk(KERN_INFO "dmi type 0xB1 record - unknown flag\n"); + break; + case 0x01: /* set pci=bfsort */ + smbios_type_b1_flag = 1; + break; + case 0x02: /* do not set pci=bfsort */ + smbios_type_b1_flag = 2; + break; + default: + break; + } +} + +static int find_sort_method(const struct dmi_system_id *d) +{ + dmi_walk(read_dmi_type_b1, NULL); + + if (smbios_type_b1_flag == 1) { + set_bf_sort(d); + return 0; + } + return -1; +} + /* * Enable renumbering of PCI bus# ranges to reach all PCI busses (Cardbus) */ #ifdef __i386__ -static int __devinit assign_all_busses(const struct dmi_system_id *d) +static int assign_all_busses(const struct dmi_system_id *d) { pci_probe |= PCI_ASSIGN_ALL_BUSSES; printk(KERN_INFO "%s detected: enabling PCI bus# renumbering" @@ -198,7 +241,15 @@ static int __devinit assign_all_busses(const struct dmi_system_id *d) } #endif -static const struct dmi_system_id __devinitconst pciprobe_dmi_table[] = { +static int set_scan_all(const struct dmi_system_id *d) +{ + printk(KERN_INFO "PCI: %s detected, enabling pci=pcie_scan_all\n", + d->ident); + pci_add_flags(PCI_SCAN_ALL_PCIE_DEVS); + return 0; +} + +static const struct dmi_system_id pciprobe_dmi_table[] = { #ifdef __i386__ /* * Laptops which need pci=assign-busses to see Cardbus cards @@ -253,6 +304,13 @@ static const struct dmi_system_id __devinitconst pciprobe_dmi_table[] = { }, }, { + .callback = find_sort_method, + .ident = "Dell System", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"), + }, + }, + { .callback = set_bf_sort, .ident = "HP ProLiant BL20p G3", .matches = { @@ -382,6 +440,14 @@ static const struct dmi_system_id __devinitconst pciprobe_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL585 G2"), }, }, + { + .callback = set_scan_all, + .ident = "Stratus/NEC ftServer", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Stratus"), + DMI_MATCH(DMI_PRODUCT_NAME, "ftServer"), + }, + }, {} }; @@ -390,37 +456,27 @@ void __init dmi_check_pciprobe(void) dmi_check_system(pciprobe_dmi_table); } -struct pci_bus * __devinit pcibios_scan_root(int busnum) +void pcibios_scan_root(int busnum) { - struct pci_bus *bus = NULL; + struct pci_bus *bus; struct pci_sysdata *sd; + LIST_HEAD(resources); - while ((bus = pci_find_next_bus(bus)) != NULL) { - if (bus->number == busnum) { - /* Already scanned */ - return bus; - } - } - - /* Allocate per-root-bus (not per bus) arch-specific data. - * TODO: leak; this memory is never freed. - * It's arguable whether it's worth the trouble to care. - */ sd = kzalloc(sizeof(*sd), GFP_KERNEL); if (!sd) { - printk(KERN_ERR "PCI: OOM, not probing PCI bus %02x\n", busnum); - return NULL; + printk(KERN_ERR "PCI: OOM, skipping PCI bus %02x\n", busnum); + return; } - - sd->node = get_mp_bus_to_node(busnum); - + sd->node = x86_pci_root_bus_node(busnum); + x86_pci_root_bus_resources(busnum, &resources); printk(KERN_DEBUG "PCI: Probing PCI hardware (bus %02x)\n", busnum); - bus = pci_scan_bus_parented(NULL, busnum, &pci_root_ops, sd); - if (!bus) + bus = pci_scan_root_bus(NULL, busnum, &pci_root_ops, sd, &resources); + if (!bus) { + pci_free_resource_list(&resources); kfree(sd); - - return bus; + } } + void __init pcibios_set_cache_line_size(void) { struct cpuinfo_x86 *c = &boot_cpu_data; @@ -456,7 +512,7 @@ int __init pcibios_init(void) return 0; } -char * __devinit pcibios_setup(char *str) +char * __init pcibios_setup(char *str) { if (!strcmp(str, "off")) { pci_probe = 0; @@ -511,7 +567,6 @@ char * __devinit pcibios_setup(char *str) pci_probe |= PCI_PROBE_NOEARLY; return NULL; } -#ifndef CONFIG_X86_VISWS else if (!strcmp(str, "usepirqmask")) { pci_probe |= PCI_USE_PIRQ_MASK; return NULL; @@ -521,9 +576,7 @@ char * __devinit pcibios_setup(char *str) } else if (!strncmp(str, "lastbus=", 8)) { pcibios_last_bus = simple_strtol(str+8, NULL, 0); return NULL; - } -#endif - else if (!strcmp(str, "rom")) { + } else if (!strcmp(str, "rom")) { pci_probe |= PCI_ASSIGN_ROMS; return NULL; } else if (!strcmp(str, "norom")) { @@ -570,6 +623,38 @@ unsigned int pcibios_assign_all_busses(void) return (pci_probe & PCI_ASSIGN_ALL_BUSSES) ? 1 : 0; } +int pcibios_add_device(struct pci_dev *dev) +{ + struct setup_data *data; + struct pci_setup_rom *rom; + u64 pa_data; + + pa_data = boot_params.hdr.setup_data; + while (pa_data) { + data = ioremap(pa_data, sizeof(*rom)); + if (!data) + return -ENOMEM; + + if (data->type == SETUP_PCI) { + rom = (struct pci_setup_rom *)data; + + if ((pci_domain_nr(dev->bus) == rom->segment) && + (dev->bus->number == rom->bus) && + (PCI_SLOT(dev->devfn) == rom->device) && + (PCI_FUNC(dev->devfn) == rom->function) && + (dev->vendor == rom->vendor) && + (dev->device == rom->devid)) { + dev->rom = pa_data + + offsetof(struct pci_setup_rom, romdata); + dev->romlen = rom->pcilen; + } + } + pa_data = data->next; + iounmap(data); + } + return 0; +} + int pcibios_enable_device(struct pci_dev *dev, int mask) { int err; @@ -588,107 +673,10 @@ void pcibios_disable_device (struct pci_dev *dev) pcibios_disable_irq(dev); } -int pci_ext_cfg_avail(struct pci_dev *dev) +int pci_ext_cfg_avail(void) { if (raw_pci_ext_ops) return 1; else return 0; } - -struct pci_bus * __devinit pci_scan_bus_on_node(int busno, struct pci_ops *ops, int node) -{ - struct pci_bus *bus = NULL; - struct pci_sysdata *sd; - - /* - * Allocate per-root-bus (not per bus) arch-specific data. - * TODO: leak; this memory is never freed. - * It's arguable whether it's worth the trouble to care. - */ - sd = kzalloc(sizeof(*sd), GFP_KERNEL); - if (!sd) { - printk(KERN_ERR "PCI: OOM, skipping PCI bus %02x\n", busno); - return NULL; - } - sd->node = node; - bus = pci_scan_bus(busno, ops, sd); - if (!bus) - kfree(sd); - - return bus; -} - -struct pci_bus * __devinit pci_scan_bus_with_sysdata(int busno) -{ - return pci_scan_bus_on_node(busno, &pci_root_ops, -1); -} - -/* - * NUMA info for PCI busses - * - * Early arch code is responsible for filling in reasonable values here. - * A node id of "-1" means "use current node". In other words, if a bus - * has a -1 node id, it's not tightly coupled to any particular chunk - * of memory (as is the case on some Nehalem systems). - */ -#ifdef CONFIG_NUMA - -#define BUS_NR 256 - -#ifdef CONFIG_X86_64 - -static int mp_bus_to_node[BUS_NR] = { - [0 ... BUS_NR - 1] = -1 -}; - -void set_mp_bus_to_node(int busnum, int node) -{ - if (busnum >= 0 && busnum < BUS_NR) - mp_bus_to_node[busnum] = node; -} - -int get_mp_bus_to_node(int busnum) -{ - int node = -1; - - if (busnum < 0 || busnum > (BUS_NR - 1)) - return node; - - node = mp_bus_to_node[busnum]; - - /* - * let numa_node_id to decide it later in dma_alloc_pages - * if there is no ram on that node - */ - if (node != -1 && !node_online(node)) - node = -1; - - return node; -} - -#else /* CONFIG_X86_32 */ - -static int mp_bus_to_node[BUS_NR] = { - [0 ... BUS_NR - 1] = -1 -}; - -void set_mp_bus_to_node(int busnum, int node) -{ - if (busnum >= 0 && busnum < BUS_NR) - mp_bus_to_node[busnum] = (unsigned char) node; -} - -int get_mp_bus_to_node(int busnum) -{ - int node; - - if (busnum < 0 || busnum > (BUS_NR - 1)) - return 0; - node = mp_bus_to_node[busnum]; - return node; -} - -#endif /* CONFIG_X86_32 */ - -#endif /* CONFIG_NUMA */ |