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Diffstat (limited to 'arch/powerpc/kernel/pci-common.c')
-rw-r--r--arch/powerpc/kernel/pci-common.c25
1 files changed, 24 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index fe7d1255e11e..083cfbdbe0b2 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -65,7 +65,7 @@ static void __devinit pci_setup_pci_controller(struct pci_controller *hose)
spin_unlock(&hose_spinlock);
}
-struct pci_controller * pcibios_alloc_controller(struct device_node *dev)
+__init_refok struct pci_controller * pcibios_alloc_controller(struct device_node *dev)
{
struct pci_controller *phb;
@@ -101,6 +101,29 @@ void pcibios_free_controller(struct pci_controller *phb)
kfree(phb);
}
+int pcibios_vaddr_is_ioport(void __iomem *address)
+{
+ int ret = 0;
+ struct pci_controller *hose;
+ unsigned long size;
+
+ spin_lock(&hose_spinlock);
+ list_for_each_entry(hose, &hose_list, list_node) {
+#ifdef CONFIG_PPC64
+ size = hose->pci_io_size;
+#else
+ size = hose->io_resource.end - hose->io_resource.start + 1;
+#endif
+ if (address >= hose->io_base_virt &&
+ address < (hose->io_base_virt + size)) {
+ ret = 1;
+ break;
+ }
+ }
+ spin_unlock(&hose_spinlock);
+ return ret;
+}
+
/*
* Return the domain number for this bus.
*/