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alpha/PCI: get rid of device resource fixups 

Tell the PCI core about host bridge address translation so it can take
care of bus-to-resource conversion for us.

CC: linux-alpha@vger.kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Bjorn Helgaas 2012-02-23 20:19:01 -07:00
parent 36a66cd6fd
commit c04d9e3579
2 changed files with 5 additions and 72 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/alpha/include/asm/pci.h
View File

@ -100,11 +100,7 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
return channel ? 15 : 14;
}
extern void pcibios_resource_to_bus(struct pci_dev *, struct pci_bus_region *,
struct resource *);
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

71
arch/alpha/kernel/pci.c
View File

@ -250,32 +250,6 @@ pci_restore_srm_config(void)
}
#endif
void __devinit
pcibios_fixup_resource(struct resource *res, struct resource *root)
{
res->start += root->start;
res->end += root->start;
}
void __devinit
pcibios_fixup_device_resources(struct pci_dev *dev, struct pci_bus *bus)
{
/* Update device resources. */
struct pci_controller *hose = (struct pci_controller *)bus->sysdata;
int i;
for (i = 0; i < PCI_NUM_RESOURCES; i++) {
if (!dev->resource[i].start)
continue;
if (dev->resource[i].flags & IORESOURCE_IO)
pcibios_fixup_resource(&dev->resource[i],
hose->io_space);
else if (dev->resource[i].flags & IORESOURCE_MEM)
pcibios_fixup_resource(&dev->resource[i],
hose->mem_space);
}
}
void __devinit
pcibios_fixup_bus(struct pci_bus *bus)
{
@ -284,13 +258,10 @@ pcibios_fixup_bus(struct pci_bus *bus)
if (pci_has_flag(PCI_PROBE_ONLY) && dev &&
(dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
pci_read_bridge_bases(bus);
pcibios_fixup_device_resources(dev, bus);
}
list_for_each_entry(dev, &bus->devices, bus_list) {
pdev_save_srm_config(dev);
if ((dev->class >> 8) != PCI_CLASS_BRIDGE_PCI)
pcibios_fixup_device_resources(dev, bus);
}
}
@ -300,42 +271,6 @@ 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_space->start;
else if (res->flags & IORESOURCE_MEM)
offset = hose->mem_space->start;
region->start = res->start - offset;
region->end = res->end - offset;
}
void 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_space->start;
else if (res->flags & IORESOURCE_MEM)
offset = hose->mem_space->start;
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);
#endif
int
pcibios_enable_device(struct pci_dev *dev, int mask)
{
@ -415,8 +350,10 @@ common_init_pci(void)
hose->mem_space->end = end;
INIT_LIST_HEAD(&resources);
pci_add_resource(&resources, hose->io_space);
pci_add_resource(&resources, hose->mem_space);
pci_add_resource_offset(&resources, hose->io_space,
hose->io_space->start);
pci_add_resource_offset(&resources, hose->mem_space,
hose->mem_space->start);
bus = pci_scan_root_bus(NULL, next_busno, alpha_mv.pci_ops,
hose, &resources);