diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-10-14 00:55:31 (GMT) |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2008-10-20 18:01:47 (GMT) |
| commit | e9f82cb75096ae30658a72d473bf170bf4d3bb2e (patch) | |
| tree | b01ec524b3dfe34b520044bdb8e5b13fbe39f4f7 /arch/powerpc/include | |
| parent | f19aeb1f3638b7bb4ca21eb361f004fac2bfe259 (diff) | |
| download | linux-e9f82cb75096ae30658a72d473bf170bf4d3bb2e.tar.xz | |
powerpc/PCI: Add legacy PCI access via sysfs
This patch adds support for legacy_io and legacy_mem files in
bus class directories in sysfs for powerpc
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/pci-bridge.h | 7 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/pci.h | 11 |
2 files changed, 18 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h index ae2ea80..9047af7 100644 --- a/arch/powerpc/include/asm/pci-bridge.h +++ b/arch/powerpc/include/asm/pci-bridge.h @@ -74,6 +74,13 @@ struct pci_controller { unsigned long pci_io_size; #endif + /* Some machines have a special region to forward the ISA + * "memory" cycles such as VGA memory regions. Left to 0 + * if unsupported + */ + resource_size_t isa_mem_phys; + resource_size_t isa_mem_size; + struct pci_ops *ops; unsigned int __iomem *cfg_addr; void __iomem *cfg_data; diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h index 0e52c78..39d547f 100644 --- a/arch/powerpc/include/asm/pci.h +++ b/arch/powerpc/include/asm/pci.h @@ -123,6 +123,16 @@ int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma, /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */ #define HAVE_PCI_MMAP 1 +extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val, + size_t count); +extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val, + size_t count); +extern int pci_mmap_legacy_page_range(struct pci_bus *bus, + struct vm_area_struct *vma, + enum pci_mmap_state mmap_state); + +#define HAVE_PCI_LEGACY 1 + #if defined(CONFIG_PPC64) || defined(CONFIG_NOT_COHERENT_CACHE) /* * For 64-bit kernels, pci_unmap_{single,page} is not a nop. @@ -226,5 +236,6 @@ extern void pci_resource_to_user(const struct pci_dev *dev, int bar, extern void pcibios_do_bus_setup(struct pci_bus *bus); extern void pcibios_fixup_of_probed_bus(struct pci_bus *bus); + #endif /* __KERNEL__ */ #endif /* __ASM_POWERPC_PCI_H */ |