Am 04.10.19 um 01:39 schrieb Tuikov, Luben:
Use the ALIGN() macro to set "num_dw" to a
multiple of 8, i.e. lower 3 bits cleared.
Signed-off-by: Luben Tuikov <luben.tui...@amd.com>
Reviewed-by: Christian König <christian.koe...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 11 ++---------
1 file changed, 2 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 68c541e11189..73c628bc6a5b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -1923,10 +1923,7 @@ static int amdgpu_map_buffer(struct ttm_buffer_object
*bo,
*addr += (u64)window * AMDGPU_GTT_MAX_TRANSFER_SIZE *
AMDGPU_GPU_PAGE_SIZE;
- num_dw = adev->mman.buffer_funcs->copy_num_dw;
- while (num_dw & 0x7)
- num_dw++;
-
+ num_dw = ALIGN(adev->mman.buffer_funcs->copy_num_dw, 8);
num_bytes = num_pages * 8;
r = amdgpu_job_alloc_with_ib(adev, num_dw * 4 + num_bytes, &job);
@@ -1986,11 +1983,7 @@ int amdgpu_copy_buffer(struct amdgpu_ring *ring,
uint64_t src_offset,
max_bytes = adev->mman.buffer_funcs->copy_max_bytes;
num_loops = DIV_ROUND_UP(byte_count, max_bytes);
- num_dw = num_loops * adev->mman.buffer_funcs->copy_num_dw;
-
- /* for IB padding */
- while (num_dw & 0x7)
- num_dw++;
+ num_dw = ALIGN(num_loops * adev->mman.buffer_funcs->copy_num_dw, 8);
r = amdgpu_job_alloc_with_ib(adev, num_dw * 4, &job);
if (r)
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