A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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x86: multi pci root bus with different io resource range, on 64-bit

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scan AMD opteron io/mmio routing to make sure every pci root bus get correct
resource range. Thus later pci scan could assign correct resource to device
with unassigned resource.

this can fix a system without _CRS for multi pci root bus.

Signed-off-by: Yinghai Lu <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
This commit is contained in:
Yinghai Lu 2008-02-19 03:21:20 -08:00 • committed by Ingo Molnar
commit 30a18d6c3f
5 changed files with 365 additions and 52 deletions
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6
drivers/pci/probe.c
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@ -1088,6 +1088,10 @@ unsigned int __devinit pci_scan_child_bus(struct pci_bus *bus)
return max;
}
void __attribute__((weak)) set_pci_bus_resources_arch_default(struct pci_bus *b)
{
}
struct pci_bus * pci_create_bus(struct device *parent,
int bus, struct pci_ops *ops, void *sysdata)
{
@ -1147,6 +1151,8 @@ struct pci_bus * pci_create_bus(struct device *parent,
b->resource[0] = &ioport_resource;
b->resource[1] = &iomem_resource;
set_pci_bus_resources_arch_default(b);
return b;
dev_create_file_err: