Tell the PCI core about host bridge address translation so it can take
care of bus-to-resource conversion for us.
N.B. cobalt_legacy_ide_fixup() does scary things with resources, but I
*think* it will still work because we're still making the same adjustments,
just in the opposite order. Here are the legacy IDE resource.start
values I expect:
current new
0x1f0 (pci_setup_device) 0x1f0
(pci_bus_to_resource) + 0xf0000000
- 0xf0000000 (cobalt_legacy_ide_fixup) - 0xf0000000
+ 0xf0000000 (pcibios_fixup_bus)
------------ ------------
0x1f0 final value 0x1f0
CC: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
CC: Yoichi Yuasa <yuasa@xxxxxxxxxxxxxx>
---
arch/mips/include/asm/pci.h | 6 +---
arch/mips/pci/pci.c | 70 ++-----------------------------------------
2 files changed, 4 insertions(+), 72 deletions(-)
diff --git a/arch/mips/include/asm/pci.h b/arch/mips/include/asm/pci.h
index 576397c..2be0c69 100644
--- a/arch/mips/include/asm/pci.h
+++ b/arch/mips/include/asm/pci.h
@@ -112,11 +112,7 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
}
#endif
-extern void pcibios_resource_to_bus(struct pci_dev *dev,
- struct pci_bus_region *region, struct resource *res);
-
-extern void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
- struct pci_bus_region *region);
+#define ARCH_HAS_GENERIC_PCI_OFFSETS
#define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index aec2b11..cab58e6 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -95,8 +95,9 @@ static void __devinit pcibios_scanbus(struct pci_controller *hose)
if (hose->get_busno && pci_probe_only)
next_busno = (*hose->get_busno)();
- pci_add_resource(&resources, hose->mem_resource);
- pci_add_resource(&resources, hose->io_resource);
+ pci_add_resource_offset(&resources,
+ hose->mem_resource, hose->mem_offset);
+ pci_add_resource_offset(&resources, hose->io_resource, hose->io_offset);
bus = pci_scan_root_bus(NULL, next_busno, hose->pci_ops, hose,
&resources);
if (!bus)
@@ -254,45 +255,13 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
return pcibios_plat_dev_init(dev);
}
-static void pcibios_fixup_device_resources(struct pci_dev *dev,
- struct pci_bus *bus)
-{
- /* Update device resources. */
- struct pci_controller *hose = (struct pci_controller *)bus->sysdata;
- unsigned long offset = 0;
- int i;
-
- for (i = 0; i < PCI_NUM_RESOURCES; i++) {
- if (!dev->resource[i].start)
- continue;
- if (dev->resource[i].flags & IORESOURCE_IO)
- offset = hose->io_offset;
- else if (dev->resource[i].flags & IORESOURCE_MEM)
- offset = hose->mem_offset;
-
- dev->resource[i].start += offset;
- dev->resource[i].end += offset;
- }
-}
-
void __devinit pcibios_fixup_bus(struct pci_bus *bus)
{
- /* Propagate hose info into the subordinate devices. */
-
- struct list_head *ln;
struct pci_dev *dev = bus->self;
if (pci_probe_only && dev &&
(dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
pci_read_bridge_bases(bus);
- pcibios_fixup_device_resources(dev, bus);
- }
-
- for (ln = bus->devices.next; ln != &bus->devices; ln = ln->next) {
- dev = pci_dev_b(ln);
-
- if ((dev->class >> 8) != PCI_CLASS_BRIDGE_PCI)
- pcibios_fixup_device_resources(dev, bus);
}
}
@@ -302,40 +271,7 @@ pcibios_update_irq(struct pci_dev *dev, int irq)
pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
}
-void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
- struct resource *res)
-{
- struct pci_controller *hose = (struct pci_controller *)dev->sysdata;
- unsigned long offset = 0;
-
- if (res->flags & IORESOURCE_IO)
- offset = hose->io_offset;
- else if (res->flags & IORESOURCE_MEM)
- offset = hose->mem_offset;
-
- region->start = res->start - offset;
- region->end = res->end - offset;
-}
-
-void __devinit
-pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
- struct pci_bus_region *region)
-{
- struct pci_controller *hose = (struct pci_controller *)dev->sysdata;
- unsigned long offset = 0;
-
- if (res->flags & IORESOURCE_IO)
- offset = hose->io_offset;
- else if (res->flags & IORESOURCE_MEM)
- offset = hose->mem_offset;
-
- res->start = region->start + offset;
- res->end = region->end + offset;
-}
-
#ifdef CONFIG_HOTPLUG
-EXPORT_SYMBOL(pcibios_resource_to_bus);
-EXPORT_SYMBOL(pcibios_bus_to_resource);
EXPORT_SYMBOL(PCIBIOS_MIN_IO);
EXPORT_SYMBOL(PCIBIOS_MIN_MEM);
#endif
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