diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2007-12-20 14:54:50 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-12-20 16:18:08 +1100 |
| commit | fe2d338cdcc628e0abdb4f70570a7fa864c617db (patch) | |
| tree | fbcaeabc2cd7f0a8d564b2e32c54254a71116de9 /arch/powerpc/kernel/pci-common.c | |
| parent | fa462f2d75e2437b5757069d3d7d27b1e50285cb (diff) | |
| download | linux-fe2d338cdcc628e0abdb4f70570a7fa864c617db.tar.bz2 | |
[POWERPC] Merge pcibios_resource_to_bus/bus_to_resource
This merges the PowerPC 32 and 64 bits version of pcibios_resource_to_bus
and pcibios_bus_to_resource().
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/pci-common.c')
| -rw-r--r-- | arch/powerpc/kernel/pci-common.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 68102ce7e438..0245c989d30a 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -655,3 +655,39 @@ int pci_proc_domain(struct pci_bus *bus) #endif } +void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, + struct resource *res) +{ + resource_size_t offset = 0, mask = (resource_size_t)-1; + struct pci_controller *hose = pci_bus_to_host(dev->bus); + + if (!hose) + return; + if (res->flags & IORESOURCE_IO) { + offset = (unsigned long)hose->io_base_virt - _IO_BASE; + mask = 0xffffffffu; + } else if (res->flags & IORESOURCE_MEM) + offset = hose->pci_mem_offset; + + region->start = (res->start - offset) & mask; + region->end = (res->end - offset) & mask; +} +EXPORT_SYMBOL(pcibios_resource_to_bus); + +void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, + struct pci_bus_region *region) +{ + resource_size_t offset = 0, mask = (resource_size_t)-1; + struct pci_controller *hose = pci_bus_to_host(dev->bus); + + if (!hose) + return; + if (res->flags & IORESOURCE_IO) { + offset = (unsigned long)hose->io_base_virt - _IO_BASE; + mask = 0xffffffffu; + } else if (res->flags & IORESOURCE_MEM) + offset = hose->pci_mem_offset; + res->start = (region->start + offset) & mask; + res->end = (region->end + offset) & mask; +} +EXPORT_SYMBOL(pcibios_bus_to_resource); |