[PATCH] radeon: Fix KMS CP writeback on big endian machines.

[Alex Deucher]

2011/4/7 Michel Dänzer <michel at daenzer.net>:
> From: Michel Dänzer <daenzer at vmware.com>
>
> This is necessary even with PCI(e) GART, and it makes writeback work even with
> AGP on my PowerBook. Might still be unreliable with older revisions of UniNorth
> and other AGP bridges though.

Looks good.

Reviewed-by: Alex Deucher <alex.deucher at gmail.com>

>
> Signed-off-by: Michel Dänzer <daenzer at vmware.com>
> ---
>  drivers/gpu/drm/radeon/radeon_fence.c |    2 +-
>  drivers/gpu/drm/radeon/radeon_ring.c  |    2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c
> index 171b0b2..2b0ee62 100644
> --- a/drivers/gpu/drm/radeon/radeon_fence.c
> +++ b/drivers/gpu/drm/radeon/radeon_fence.c
> @@ -80,7 +80,7 @@ static bool radeon_fence_poll_locked(struct radeon_device *rdev)
>                        scratch_index = R600_WB_EVENT_OFFSET + rdev->fence_drv.scratch_reg - rdev->scratch.reg_base;
>                else
>                        scratch_index = RADEON_WB_SCRATCH_OFFSET + rdev->fence_drv.scratch_reg - rdev->scratch.reg_base;
> -               seq = rdev->wb.wb[scratch_index/4];
> +               seq = le32_to_cpu(rdev->wb.wb[scratch_index/4]);
>        } else
>                seq = RREG32(rdev->fence_drv.scratch_reg);
>        if (seq != rdev->fence_drv.last_seq) {
> diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c
> index 992d99d..55ea680 100644
> --- a/drivers/gpu/drm/radeon/radeon_ring.c
> +++ b/drivers/gpu/drm/radeon/radeon_ring.c
> @@ -248,7 +248,7 @@ void radeon_ib_pool_fini(struct radeon_device *rdev)
>  void radeon_ring_free_size(struct radeon_device *rdev)
>  {
>        if (rdev->wb.enabled)
> -               rdev->cp.rptr = rdev->wb.wb[RADEON_WB_CP_RPTR_OFFSET/4];
> +               rdev->cp.rptr = le32_to_cpu(rdev->wb.wb[RADEON_WB_CP_RPTR_OFFSET/4]);
>        else {
>                if (rdev->family >= CHIP_R600)
>                        rdev->cp.rptr = RREG32(R600_CP_RB_RPTR);
> --
> 1.7.4.1
>
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