[PATCH 0/5] swiotlb: changes for powerpc/highmem

[Becky Bruce]

This is a series of fairly minor patches that get swiotlb working
on 32-bit powerpc systems with HIGHMEM, plus some cleanup of the
outdated comments in the code. I've made a couple of things
weak that ppc needs to override, and have changed the prototypes
for a couple of functions to include the hwdev pointer, which
we need to ppc to convert bus addresses to and from phys/virt
addresses. I've also fixed a build warning I've been seeing on
ppc.

I have not tested this in any way on any non-ppc platforms,
so commentary/testing from x86/ia64 folks is greatly
appreciated.

diffstat:
arch/x86/kernel/pci-swiotlb.c | 2 +-
include/linux/swiotlb.h | 4 ++-
lib/swiotlb.c | 70 +++++++++++++++++++++++-----------------
3 files changed, 44 insertions(+), 32 deletions(-)

Cheers,
Becky

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[Jeremy Fitzhardinge]

Becky Bruce wrote:
> This is a series of fairly minor patches that get swiotlb working
> on 32-bit powerpc systems with HIGHMEM, plus some cleanup of the
> outdated comments in the code. I've made a couple of things
> weak that ppc needs to override, and have changed the prototypes
> for a couple of functions to include the hwdev pointer, which
> we need to ppc to convert bus addresses to and from phys/virt
> addresses. I've also fixed a build warning I've been seeing on
> ppc.
>
> I have not tested this in any way on any non-ppc platforms,
> so commentary/testing from x86/ia64 folks is greatly
> appreciated.
>

This works fine for me under Xen.

Acked-by: Jeremy Fitzhardinge <jeremy.fi...@citrix.com>

J