This replaces the generic versions of pcibios_resource_to_bus() and
pcibios_bus_to_resource() in asm-generic/pci.h with versions that use
pci_resource_to_bus() and pci_bus_to_resource().
The replacements are equivalent except that they can apply host
bridge window offsets when the arch has supplied them by using
pci_add_resource_offset().
Each arch can convert to using pci_add_resource_offset() individually by
removing its device resource fixups from pcibios_fixup_bus() and supplying
ARCH_HAS_GENERIC_PCI_OFFSETS. ARCH_HAS_GENERIC_PCI_OFFSETS can be removed
after all have converted.
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
---
drivers/pci/probe.c | 16 ++++++++++++++++
include/asm-generic/pci.h | 24 +-----------------------
include/linux/pci.h | 4 ++++
3 files changed, 21 insertions(+), 23 deletions(-)
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 3ae6304..f3c503a 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -118,6 +118,22 @@ void pci_bus_to_resource(struct pci_dev *dev, struct resource *res,
res->end = region->end + offset;
}
+#ifdef ARCH_HAS_GENERIC_PCI_OFFSETS
+void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
+ struct resource *res)
+{
+ pci_resource_to_bus(dev, region, res);
+}
+EXPORT_SYMBOL(pcibios_resource_to_bus);
+
+void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
+ struct pci_bus_region *region)
+{
+ pci_bus_to_resource(dev, res, region);
+}
+EXPORT_SYMBOL(pcibios_bus_to_resource);
+#endif
+
/*
* PCI Bus Class
*/
diff --git a/include/asm-generic/pci.h b/include/asm-generic/pci.h
index 26373cf..0410346 100644
--- a/include/asm-generic/pci.h
+++ b/include/asm-generic/pci.h
@@ -6,29 +6,7 @@
#ifndef _ASM_GENERIC_PCI_H
#define _ASM_GENERIC_PCI_H
-/**
- * pcibios_resource_to_bus - convert resource to PCI bus address
- * @dev: device which owns this resource
- * @region: converted bus-centric region (start,end)
- * @res: resource to convert
- *
- * Convert a resource to a PCI device bus address or bus window.
- */
-static inline 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;
-}
-
-static inline 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;
-}
+#define ARCH_HAS_GENERIC_PCI_OFFSETS
static inline struct resource *
pcibios_select_root(struct pci_dev *pdev, struct resource *res)
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 35ef2d1..a422217 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -668,6 +668,10 @@ void pci_fixup_cardbus(struct pci_bus *);
/* Generic PCI functions used internally */
+void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
+ struct resource *res);
+void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
+ struct pci_bus_region *region);
void pcibios_scan_specific_bus(int busn);
extern struct pci_bus *pci_find_bus(int domain, int busnr);
void pci_bus_add_devices(const struct pci_bus *bus);
--
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