powerpc/pci: Move hose_list and pci_address_to_pio to pci-common

move the definition of hose_list next to its hotplug spinlock.

create pcibios_io_size to encapsulate ifdef in existing pci-common
function pcibios_vaddr_is_ioport

move pci_address_to_pio to pci-common, using new pcibios_io_size, and
protect this GPL exported function against concurrent hotplug removal

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 0 insertions, 19 deletions

diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index ea8eda8c87cf..be574fc0d92f 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -43,8 +43,6 @@ unsigned long pci_probe_only = 1;
 unsigned long pci_io_base = ISA_IO_BASE;
 EXPORT_SYMBOL(pci_io_base);
 
-LIST_HEAD(hose_list);
-
 static void fixup_broken_pcnet32(struct pci_dev* dev)
 {
         if ((dev->class>>8 == PCI_CLASS_NETWORK_ETHERNET)) {
@@ -524,23 +522,6 @@ int __devinit pcibios_map_io_space(struct pci_bus *bus)
 }
 EXPORT_SYMBOL_GPL(pcibios_map_io_space);
 
-unsigned long 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)) {
-                        unsigned long base =
-                                (unsigned long)hose->io_base_virt - _IO_BASE;
-                        return base + (address - hose->io_base_phys);
-                }
-        }
-        return (unsigned int)-1;
-}
-EXPORT_SYMBOL_GPL(pci_address_to_pio);
-
-
 #define IOBASE_BRIDGE_NUMBER    0
 #define IOBASE_MEMORY           1
 #define IOBASE_IO               2