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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2005-11-30 08:57:28 +0300 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-01-09 06:51:26 +0300 |
| commit | d2dd482bc17c3bc240045f80a7c4b4d5cea5e29c (patch) | |
| tree | 9c40a9ab9a04839f2d578f9d47985b399074ce58 /arch/ppc | |
| parent | bb6b9b28d6847bc71f910e2e82c9040ff4b97ec0 (diff) | |
| download | linux-d2dd482bc17c3bc240045f80a7c4b4d5cea5e29c.tar.xz | |
[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/ppc')
| -rw-r--r-- | arch/ppc/kernel/pci.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/ppc/kernel/pci.c b/arch/ppc/kernel/pci.c index 0aa184112fb1..af364003880b 100644 --- a/arch/ppc/kernel/pci.c +++ b/arch/ppc/kernel/pci.c @@ -1805,6 +1805,21 @@ void pci_iounmap(struct pci_dev *dev, void __iomem *addr) EXPORT_SYMBOL(pci_iomap); EXPORT_SYMBOL(pci_iounmap); +unsigned int pci_address_to_pio(phys_addr_t address) +{ + struct pci_controller* hose = hose_head; + + for (; hose; hose = hose->next) { + unsigned int size = hose->io_resource.end - + hose->io_resource.start + 1; + if (address >= hose->io_base_phys && + address < (hose->io_base_phys + size)) + return (unsigned int)hose->io_base_virt + + (address - hose->io_base_phys); + } + return (unsigned int)-1; +} +EXPORT_SYMBOL(pci_address_to_pio); /* * Null PCI config access functions, for the case when we can't |