diff options
| -rw-r--r-- | arch/i386/Kconfig | 5 | ||||
| -rw-r--r-- | arch/x86/pci/acpi.c | 13 | ||||
| -rw-r--r-- | arch/x86/pci/common.c | 6 | ||||
| -rw-r--r-- | arch/x86_64/Kconfig | 5 | ||||
| -rw-r--r-- | include/asm-x86/pci_32.h | 12 | ||||
| -rw-r--r-- | include/asm-x86/pci_64.h | 12 |
6 files changed, 45 insertions, 8 deletions
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index 2d85e4b8730..515abb98d41 100644 --- a/arch/i386/Kconfig +++ b/arch/i386/Kconfig @@ -1137,6 +1137,11 @@ config PCI_MMCONFIG depends on PCI && ACPI && (PCI_GOMMCONFIG || PCI_GOANY) default y +config PCI_DOMAINS + bool + depends on PCI + default y + source "drivers/pci/pcie/Kconfig" source "drivers/pci/Kconfig" diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index c6fd3a6afa4..27a391da9a9 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -189,6 +189,12 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do dmi_check_system(acpi_pciprobe_dmi_table); + if (domain && !pci_domains_supported) { + printk(KERN_WARNING "PCI: Multiple domains not supported " + "(dom %d, bus %d)\n", domain, busnum); + return NULL; + } + /* 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. @@ -199,12 +205,7 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do return NULL; } - if (domain != 0) { - printk(KERN_WARNING "PCI: Multiple domains not supported\n"); - kfree(sd); - return NULL; - } - + sd->domain = domain; sd->node = -1; pxm = acpi_get_pxm(device->handle); diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index 7d6a9a5aa7c..2d71bbc411d 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -29,12 +29,14 @@ struct pci_raw_ops *raw_pci_ops; static int pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *value) { - return raw_pci_ops->read(0, bus->number, devfn, where, size, value); + return raw_pci_ops->read(pci_domain_nr(bus), bus->number, + devfn, where, size, value); } static int pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 value) { - return raw_pci_ops->write(0, bus->number, devfn, where, size, value); + return raw_pci_ops->write(pci_domain_nr(bus), bus->number, + devfn, where, size, value); } struct pci_ops pci_root_ops = { diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig index b1b98e614f7..04d324cc72d 100644 --- a/arch/x86_64/Kconfig +++ b/arch/x86_64/Kconfig @@ -724,6 +724,11 @@ config PCI_MMCONFIG bool "Support mmconfig PCI config space access" depends on PCI && ACPI +config PCI_DOMAINS + bool + depends on PCI + default y + source "drivers/pci/pcie/Kconfig" source "drivers/pci/Kconfig" diff --git a/include/asm-x86/pci_32.h b/include/asm-x86/pci_32.h index 4fcacc71138..0d91605cd1e 100644 --- a/include/asm-x86/pci_32.h +++ b/include/asm-x86/pci_32.h @@ -5,12 +5,24 @@ #ifdef __KERNEL__ struct pci_sysdata { + int domain; /* PCI domain */ int node; /* NUMA node */ }; /* scan a bus after allocating a pci_sysdata for it */ extern struct pci_bus *pci_scan_bus_with_sysdata(int busno); +static inline int pci_domain_nr(struct pci_bus *bus) +{ + struct pci_sysdata *sd = bus->sysdata; + return sd->domain; +} + +static inline int pci_proc_domain(struct pci_bus *bus) +{ + return pci_domain_nr(bus); +} + #include <linux/mm.h> /* for struct page */ /* Can be used to override the logic in pci_scan_bus for skipping diff --git a/include/asm-x86/pci_64.h b/include/asm-x86/pci_64.h index 5da8cb0c059..0a123d6a820 100644 --- a/include/asm-x86/pci_64.h +++ b/include/asm-x86/pci_64.h @@ -6,12 +6,24 @@ #ifdef __KERNEL__ struct pci_sysdata { + int domain; /* PCI domain */ int node; /* NUMA node */ void* iommu; /* IOMMU private data */ }; extern struct pci_bus *pci_scan_bus_with_sysdata(int busno); +static inline int pci_domain_nr(struct pci_bus *bus) +{ + struct pci_sysdata *sd = bus->sysdata; + return sd->domain; +} + +static inline int pci_proc_domain(struct pci_bus *bus) +{ + return pci_domain_nr(bus); +} + #ifdef CONFIG_CALGARY_IOMMU static inline void* pci_iommu(struct pci_bus *bus) { |