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drm/radeon/kms: fix alignment when allocating buffers

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We were previously dropping alignment requests on the floor
when allocating buffers so we always ended up page aligned.
Certain tiling modes on 6xx+ require larger alignment which
wasn't happening before.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: Jerome Glisse <j.glisse@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher
2010-11-17 19:00:26 -05:00
committed by Dave Airlie
parent 2f5993cca6
commit 268b2510de
13 changed files with 25 additions and 23 deletions
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7
drivers/gpu/drm/radeon/radeon_object.c
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@@ -86,11 +86,12 @@ void radeon_ttm_placement_from_domain(struct radeon_bo *rbo, u32 domain)
}
int radeon_bo_create(struct radeon_device *rdev, struct drm_gem_object *gobj,
unsigned long size, bool kernel, u32 domain,
struct radeon_bo **bo_ptr)
unsigned long size, int byte_align, bool kernel, u32 domain,
struct radeon_bo **bo_ptr)
{
struct radeon_bo *bo;
enum ttm_bo_type type;
int page_align = roundup(byte_align, PAGE_SIZE) >> PAGE_SHIFT;
int r;
if (unlikely(rdev->mman.bdev.dev_mapping == NULL)) {
@@ -115,7 +116,7 @@ retry:
/* Kernel allocation are uninterruptible */
mutex_lock(&rdev->vram_mutex);
r = ttm_bo_init(&rdev->mman.bdev, &bo->tbo, size, type,
&bo->placement, 0, 0, !kernel, NULL, size,
&bo->placement, page_align, 0, !kernel, NULL, size,
&radeon_ttm_bo_destroy);
mutex_unlock(&rdev->vram_mutex);
if (unlikely(r != 0)) {