x86 does not need to offset the address. So we can skip that costing offset
searching.
Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>
---
arch/x86/pci/i386.c | 14 ++++++++++++++
drivers/pci/host-bridge.c | 9 +++++----
2 files changed, 19 insertions(+), 4 deletions(-)
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index 33e6a0b..eeed28e 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -335,6 +335,20 @@ void __init pcibios_resource_survey(void)
*/
fs_initcall(pcibios_assign_resources);
+void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
+ struct resource *res)
+{
+ region->start = res->start;
+ region->end = res->end;
+}
+
+void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
+ struct pci_bus_region *region)
+{
+ res->start = region->start;
+ res->end = region->end;
+}
+
static const struct vm_operations_struct pci_mmap_ops = {
.access = generic_access_phys,
};
diff --git a/drivers/pci/host-bridge.c b/drivers/pci/host-bridge.c
index 5ca4220..dfaff3f 100644
--- a/drivers/pci/host-bridge.c
+++ b/drivers/pci/host-bridge.c
@@ -38,8 +38,9 @@ static bool resource_contains(struct resource *res1, struct resource *res2)
return res1->start <= res2->start && res1->end >= res2->end;
}
-void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
- struct resource *res)
+void __weak pcibios_resource_to_bus(struct pci_dev *dev,
+ struct pci_bus_region *region,
+ struct resource *res)
{
struct pci_host_bridge *bridge = pci_host_bridge(dev);
struct pci_host_bridge_window *window;
@@ -66,8 +67,8 @@ static bool region_contains(struct pci_bus_region *region1,
return region1->start <= region2->start && region1->end >= region2->end;
}
-void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
- struct pci_bus_region *region)
+void __weak pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
+ struct pci_bus_region *region)
{
struct pci_host_bridge *bridge = pci_host_bridge(dev);
struct pci_host_bridge_window *window;
--
1.7.7
--
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