* [PATCH 1/3] Let subordinate transparent bridges be transparent.
@ 2007-05-29 18:22 Jon Loeliger
2007-05-31 6:53 ` Zang Roy-r61911
0 siblings, 1 reply; 2+ messages in thread
From: Jon Loeliger @ 2007-05-29 18:22 UTC (permalink / raw)
To: linuxppc-dev@ozlabs.org
From: York Sun <yorksun@freescale.com>
In pcibios_fixup_bus(), bridges that are subordinate
to transparent bridges were still relocating their
IORESOURCE_IO start and end values.
Fix this by preventing the transparent bridge from
relocating the start and end values, thus allowing the
subordinate non-transparent bridge full molestation rights.
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Jon Loeliger <jdl@freescale.com>
---
arch/powerpc/kernel/pci_32.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index e66064b..102264c 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -1372,7 +1372,9 @@ void __init pcibios_fixup_bus(struct pci_bus *bus)
continue;
if (!res->flags)
continue;
- if (io_offset && (res->flags & IORESOURCE_IO)) {
+ if (!bus->self->transparent
+ && io_offset
+ && (res->flags & IORESOURCE_IO)) {
res->start += io_offset;
res->end += io_offset;
} else if (hose->pci_mem_offset
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH 1/3] Let subordinate transparent bridges be transparent.
2007-05-29 18:22 [PATCH 1/3] Let subordinate transparent bridges be transparent Jon Loeliger
@ 2007-05-31 6:53 ` Zang Roy-r61911
0 siblings, 0 replies; 2+ messages in thread
From: Zang Roy-r61911 @ 2007-05-31 6:53 UTC (permalink / raw)
To: Jon Loeliger; +Cc: linuxppc-dev list
On Wed, 2007-05-30 at 02:22, Jon Loeliger wrote:
> From: York Sun <yorksun@freescale.com>
>
> In pcibios_fixup_bus(), bridges that are subordinate
> to transparent bridges were still relocating their
> IORESOURCE_IO start and end values.
>
> Fix this by preventing the transparent bridge from
> relocating the start and end values, thus allowing the
> subordinate non-transparent bridge full molestation rights.
>
> Signed-off-by: York Sun <yorksun@freescale.com>
> Signed-off-by: Andy Fleming <afleming@freescale.com>
> Signed-off-by: Jon Loeliger <jdl@freescale.com>
> ---
Acked-by: Roy Zang <tie-fei.zang@freescale.com>
^ permalink raw reply [flat|nested] 2+ messages in thread
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