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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2005-11-30 16:57:28 +1100
committerPaul Mackerras <paulus@samba.org>2006-01-09 14:51:26 +1100
commitd2dd482bc17c3bc240045f80a7c4b4d5cea5e29c (patch)
tree9c40a9ab9a04839f2d578f9d47985b399074ce58 /arch/powerpc/kernel/pci_64.c
parentbb6b9b28d6847bc71f910e2e82c9040ff4b97ec0 (diff)
[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.c14
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);