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drm/ttm: cleanup ttm_tt_create

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Cleanup ttm_tt_create a bit.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2018-02-22 08:54:57 +01:00 committed by Alex Deucher
parent 97b7e1b8b5
commit 45a9d154f6
1 changed files with 13 additions and 16 deletions
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29
drivers/gpu/drm/ttm/ttm_tt.c
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@ -53,11 +53,9 @@
int ttm_tt_create(struct ttm_buffer_object *bo, bool zero_alloc)
{
struct ttm_bo_device *bdev = bo->bdev;
int ret = 0;
uint32_t page_flags = 0;
reservation_object_assert_held(bo->resv);
bo->ttm = NULL;
if (bdev->need_dma32)
page_flags |= TTM_PAGE_FLAG_DMA32;
@ -69,28 +67,27 @@ int ttm_tt_create(struct ttm_buffer_object *bo, bool zero_alloc)
case ttm_bo_type_device:
if (zero_alloc)
page_flags |= TTM_PAGE_FLAG_ZERO_ALLOC;
break;
case ttm_bo_type_kernel:
bo->ttm = bdev->driver->ttm_tt_create(bdev, bo->num_pages << PAGE_SHIFT,
page_flags);
if (unlikely(bo->ttm == NULL))
ret = -ENOMEM;
break;
case ttm_bo_type_sg:
bo->ttm = bdev->driver->ttm_tt_create(bdev, bo->num_pages << PAGE_SHIFT,
page_flags | TTM_PAGE_FLAG_SG);
if (unlikely(bo->ttm == NULL)) {
ret = -ENOMEM;
break;
}
bo->ttm->sg = bo->sg;
page_flags |= TTM_PAGE_FLAG_SG;
break;
default:
bo->ttm = NULL;
pr_err("Illegal buffer object type\n");
ret = -EINVAL;
break;
return -EINVAL;
}
return ret;
bo->ttm = bdev->driver->ttm_tt_create(bdev, bo->num_pages << PAGE_SHIFT,
page_flags);
if (unlikely(bo->ttm == NULL))
return -ENOMEM;
if (bo->type == ttm_bo_type_sg)
bo->ttm->sg = bo->sg;
return 0;
}
/**