diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2007-12-20 04:54:49 +0100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-12-20 06:18:08 +0100 |
| commit | fa462f2d75e2437b5757069d3d7d27b1e50285cb (patch) | |
| tree | dc872ff52a3225a3ef134105e74a528e5983fe8d | |
| parent | [POWERPC] pci32: Remove obsolete PowerMac bus number hack (diff) | |
| download | linux-fa462f2d75e2437b5757069d3d7d27b1e50285cb.tar.xz linux-fa462f2d75e2437b5757069d3d7d27b1e50285cb.zip | |
[POWERPC] pci32: Add platform option to enable /proc PCI domains
This adds flags the platforms can use to enable domain numbers
in /proc/bus/pci.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
| -rw-r--r-- | arch/powerpc/kernel/pci-common.c | 16 | ||||
| -rw-r--r-- | arch/powerpc/kernel/pci_64.c | 8 | ||||
| -rw-r--r-- | include/asm-powerpc/pci-bridge.h | 5 | ||||
| -rw-r--r-- | include/asm-powerpc/pci.h | 14 |
4 files changed, 25 insertions, 18 deletions
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 9979c43cc8c7..68102ce7e438 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -639,3 +639,19 @@ void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose, hose->mem_resources[memno-1] = tmp; } } + +/* Decide whether to display the domain number in /proc */ +int pci_proc_domain(struct pci_bus *bus) +{ + struct pci_controller *hose = pci_bus_to_host(bus); +#ifdef CONFIG_PPC64 + return hose->buid != 0; +#else + if (!(ppc_pci_flags & PPC_PCI_ENABLE_PROC_DOMAINS)) + return 0; + if (ppc_pci_flags & PPC_PCI_COMPAT_DOMAIN_0) + return hose->global_number != 0; + return 1; +#endif +} + diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 3e7cf7af3bf3..e0f3731c3a1c 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -586,14 +586,6 @@ int pcibios_enable_device(struct pci_dev *dev, int mask) return 0; } -/* Decide whether to display the domain number in /proc */ -int pci_proc_domain(struct pci_bus *bus) -{ - struct pci_controller *hose = pci_bus_to_host(bus); - return hose->buid != 0; -} - - #ifdef CONFIG_HOTPLUG int pcibios_unmap_io_space(struct pci_bus *bus) diff --git a/include/asm-powerpc/pci-bridge.h b/include/asm-powerpc/pci-bridge.h index 2972f0d3afaa..fed8f52071f1 100644 --- a/include/asm-powerpc/pci-bridge.h +++ b/include/asm-powerpc/pci-bridge.h @@ -30,6 +30,11 @@ enum { * ISA forwarding enabled */ PPC_PCI_CAN_SKIP_ISA_ALIGN = 0x00000008, + + /* Enable domain numbers in /proc */ + PPC_PCI_ENABLE_PROC_DOMAINS = 0x00000010, + /* ... except for domain 0 */ + PPC_PCI_COMPAT_DOMAIN_0 = 0x00000020, }; diff --git a/include/asm-powerpc/pci.h b/include/asm-powerpc/pci.h index 47cc117a1422..2883f566709d 100644 --- a/include/asm-powerpc/pci.h +++ b/include/asm-powerpc/pci.h @@ -98,9 +98,6 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev, #define get_pci_dma_ops() NULL #endif -/* Decide whether to display the domain number in /proc */ -extern int pci_proc_domain(struct pci_bus *bus); - #else /* 32-bit */ #ifdef CONFIG_PCI @@ -112,17 +109,14 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev, *strategy_parameter = ~0UL; } #endif - -/* Set the name of the bus as it appears in /proc/bus/pci */ -static inline int pci_proc_domain(struct pci_bus *bus) -{ - return 0; -} - #endif /* CONFIG_PPC64 */ extern int pci_domain_nr(struct pci_bus *bus); +/* Decide whether to display the domain number in /proc */ +extern int pci_proc_domain(struct pci_bus *bus); + + struct vm_area_struct; /* Map a range of PCI memory or I/O space for a device into user space */ int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma, |