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Diffstat (limited to 'arch/microblaze/pci/iomap.c')
-rw-r--r--arch/microblaze/pci/iomap.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/microblaze/pci/iomap.c b/arch/microblaze/pci/iomap.c
index bde74af4c1cd..b2ee8ace9b6e 100644
--- a/arch/microblaze/pci/iomap.c
+++ b/arch/microblaze/pci/iomap.c
@@ -11,6 +11,42 @@
#include <linux/io.h>
#include <asm/pci-bridge.h>
+static DEFINE_SPINLOCK(hose_spinlock);
+LIST_HEAD(hose_list);
+
+unsigned long isa_io_base;
+EXPORT_SYMBOL(isa_io_base);
+
+static resource_size_t pcibios_io_size(const struct pci_controller *hose)
+{
+ return resource_size(&hose->io_resource);
+}
+
+int pcibios_vaddr_is_ioport(void __iomem *address)
+{
+ int ret = 0;
+ struct pci_controller *hose;
+ resource_size_t size;
+
+ spin_lock(&hose_spinlock);
+ list_for_each_entry(hose, &hose_list, list_node) {
+ size = pcibios_io_size(hose);
+ if (address >= hose->io_base_virt &&
+ address < (hose->io_base_virt + size)) {
+ ret = 1;
+ break;
+ }
+ }
+ spin_unlock(&hose_spinlock);
+ return ret;
+}
+
+/* Display the domain number in /proc */
+int pci_proc_domain(struct pci_bus *bus)
+{
+ return pci_domain_nr(bus);
+}
+
void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
{
if (isa_vaddr_is_ioport(addr))