diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2005-11-30 16:57:28 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-01-09 14:51:26 +1100 |
| commit | d2dd482bc17c3bc240045f80a7c4b4d5cea5e29c (patch) | |
| tree | 9c40a9ab9a04839f2d578f9d47985b399074ce58 /arch/powerpc/kernel/pci_64.c | |
| parent | bb6b9b28d6847bc71f910e2e82c9040ff4b97ec0 (diff) | |
| download | linux-d2dd482bc17c3bc240045f80a7c4b4d5cea5e29c.tar.bz2 | |
[PATCH] powerpc: Update OF address parsers
This updates the OF address parsers to return the IO flags
indicating the type of address obtained. It also adds a PCI
call for converting physical addresses that hit IO space into
into IO tokens, and add routines that return the translated
addresses into struct 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_64.c')
| -rw-r--r-- | arch/powerpc/kernel/pci_64.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 5f241fcd88e8..0988222741f0 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -1181,6 +1181,20 @@ void phbs_remap_io(void) remap_bus_range(hose->bus); } +unsigned int pci_address_to_pio(phys_addr_t address) +{ + struct pci_controller *hose, *tmp; + + list_for_each_entry_safe(hose, tmp, &hose_list, list_node) { + if (address >= hose->io_base_phys && + address < (hose->io_base_phys + hose->pci_io_size)) + return (unsigned int)hose->io_base_virt + + (address - hose->io_base_phys); + } + return (unsigned int)-1; +} +EXPORT_SYMBOL_GPL(pci_address_to_pio); + static void __devinit fixup_resource(struct resource *res, struct pci_dev *dev) { struct pci_controller *hose = pci_bus_to_host(dev->bus); |