diff options
Diffstat (limited to 'arch/x86/pci/acpi.c')
| -rw-r--r-- | arch/x86/pci/acpi.c | 57 |
1 files changed, 46 insertions, 11 deletions
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index 192397c98606..53ea60458e01 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -12,6 +12,7 @@ struct pci_root_info { char name[16]; unsigned int res_num; struct resource *res; + resource_size_t *res_offset; struct pci_sysdata sd; #ifdef CONFIG_PCI_MMCONFIG bool mcfg_added; @@ -22,6 +23,7 @@ struct pci_root_info { }; static bool pci_use_crs = true; +static bool pci_ignore_seg = false; static int __init set_use_crs(const struct dmi_system_id *id) { @@ -35,7 +37,14 @@ static int __init set_nouse_crs(const struct dmi_system_id *id) return 0; } -static const struct dmi_system_id pci_use_crs_table[] __initconst = { +static int __init set_ignore_seg(const struct dmi_system_id *id) +{ + printk(KERN_INFO "PCI: %s detected: ignoring ACPI _SEG\n", id->ident); + pci_ignore_seg = true; + return 0; +} + +static const struct dmi_system_id pci_crs_quirks[] __initconst = { /* http://bugzilla.kernel.org/show_bug.cgi?id=14183 */ { .callback = set_use_crs, @@ -98,6 +107,16 @@ static const struct dmi_system_id pci_use_crs_table[] __initconst = { DMI_MATCH(DMI_BIOS_VERSION, "6JET85WW (1.43 )"), }, }, + + /* https://bugzilla.kernel.org/show_bug.cgi?id=15362 */ + { + .callback = set_ignore_seg, + .ident = "HP xw9300", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP xw9300 Workstation"), + }, + }, {} }; @@ -108,7 +127,7 @@ void __init pci_acpi_crs_quirks(void) if (dmi_get_date(DMI_BIOS_DATE, &year, NULL, NULL) && year < 2008) pci_use_crs = false; - dmi_check_system(pci_use_crs_table); + dmi_check_system(pci_crs_quirks); /* * If the user specifies "pci=use_crs" or "pci=nocrs" explicitly, that @@ -126,7 +145,7 @@ void __init pci_acpi_crs_quirks(void) } #ifdef CONFIG_PCI_MMCONFIG -static int __devinit check_segment(u16 seg, struct device *dev, char *estr) +static int check_segment(u16 seg, struct device *dev, char *estr) { if (seg) { dev_err(dev, @@ -149,9 +168,8 @@ static int __devinit check_segment(u16 seg, struct device *dev, char *estr) return 0; } -static int __devinit setup_mcfg_map(struct pci_root_info *info, - u16 seg, u8 start, u8 end, - phys_addr_t addr) +static int setup_mcfg_map(struct pci_root_info *info, u16 seg, u8 start, + u8 end, phys_addr_t addr) { int result; struct device *dev = &info->bridge->dev; @@ -189,7 +207,7 @@ static void teardown_mcfg_map(struct pci_root_info *info) } } #else -static int __devinit setup_mcfg_map(struct pci_root_info *info, +static int setup_mcfg_map(struct pci_root_info *info, u16 seg, u8 start, u8 end, phys_addr_t addr) { @@ -305,6 +323,7 @@ setup_resource(struct acpi_resource *acpi_res, void *data) res->flags = flags; res->start = start; res->end = end; + info->res_offset[info->res_num] = addr.translation_offset; if (!pci_use_crs) { dev_printk(KERN_DEBUG, &info->bridge->dev, @@ -374,7 +393,8 @@ static void add_resources(struct pci_root_info *info, "ignoring host bridge window %pR (conflicts with %s %pR)\n", res, conflict->name, conflict); else - pci_add_resource(resources, res); + pci_add_resource_offset(resources, res, + info->res_offset[i]); } } @@ -382,6 +402,8 @@ static void free_pci_root_info_res(struct pci_root_info *info) { kfree(info->res); info->res = NULL; + kfree(info->res_offset); + info->res_offset = NULL; info->res_num = 0; } @@ -432,16 +454,26 @@ probe_pci_root_info(struct pci_root_info *info, struct acpi_device *device, return; size = sizeof(*info->res) * info->res_num; - info->res_num = 0; info->res = kzalloc(size, GFP_KERNEL); - if (!info->res) + if (!info->res) { + info->res_num = 0; return; + } + + size = sizeof(*info->res_offset) * info->res_num; + info->res_num = 0; + info->res_offset = kzalloc(size, GFP_KERNEL); + if (!info->res_offset) { + kfree(info->res); + info->res = NULL; + return; + } acpi_walk_resources(device->handle, METHOD_NAME__CRS, setup_resource, info); } -struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root) +struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) { struct acpi_device *device = root->device; struct pci_root_info *info = NULL; @@ -455,6 +487,9 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root) int pxm; #endif + if (pci_ignore_seg) + domain = 0; + if (domain && !pci_domains_supported) { printk(KERN_WARNING "pci_bus %04x:%02x: " "ignored (multiple domains not supported)\n", |