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drm/radeon/kms: Make GPU/CPU page size handling consistent in blit code (v2)

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The BO blit code inconsistenly handled the page size.  This wasn't
an issue on system with 4k pages since the GPU's page size is 4k as
well.  Switch the driver blit callbacks to take num pages in GPU
page units.

Fixes lemote mipsel systems using AMD rs780/rs880 chipsets.

v2: incorporate suggestions from Michel.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2011-09-16 12:04:08 -04:00 • committed by Dave Airlie
parent 18b4fada27
commit 003cefe0c2
7 changed files with 34 additions and 24 deletions
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4
drivers/gpu/drm/radeon/r200.c
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@ -84,7 +84,7 @@ static int r200_get_vtx_size_0(uint32_t vtx_fmt_0)
int r200_copy_dma(struct radeon_device *rdev,
uint64_t src_offset,
uint64_t dst_offset,
unsigned num_pages,
unsigned num_gpu_pages,
struct radeon_fence *fence)
{
uint32_t size;
@ -93,7 +93,7 @@ int r200_copy_dma(struct radeon_device *rdev,
int r = 0;
/* radeon pitch is /64 */
size = num_pages << PAGE_SHIFT;
size = num_gpu_pages << RADEON_GPU_PAGE_SHIFT;
num_loops = DIV_ROUND_UP(size, 0x1FFFFF);
r = radeon_ring_lock(rdev, num_loops * 4 + 64);
if (r) {