On Fri, Sep 14, 2018 at 3:13 PM Christian König
<ckoenig.leichtzumerken at gmail.com> wrote:
>
> Simply ignore any copying here.
>
> Signed-off-by: Christian König <christian.koenig at amd.com>
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 18 ++++++++++++++++++
> 1 file changed, 18 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> index c691275cd1f0..3e450159fe1f 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> @@ -256,6 +256,13 @@ static void amdgpu_evict_flags(struct ttm_buffer_object *bo,
>
> abo = ttm_to_amdgpu_bo(bo);
> switch (bo->mem.mem_type) {
> + case AMDGPU_PL_GDS:
> + case AMDGPU_PL_GWS:
> + case AMDGPU_PL_OA:
> + placement->num_placement = 0;
> + placement->num_busy_placement = 0;
> + return;
> +
> case TTM_PL_VRAM:
> if (!adev->mman.buffer_funcs_enabled) {
> /* Move to system memory */
> @@ -283,6 +290,7 @@ static void amdgpu_evict_flags(struct ttm_buffer_object *bo,
> case TTM_PL_TT:
> default:
> amdgpu_bo_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_CPU);
> + break;
> }
> *placement = abo->placement;
> }
> @@ -675,6 +683,16 @@ static int amdgpu_bo_move(struct ttm_buffer_object *bo, bool evict,
> amdgpu_move_null(bo, new_mem);
> return 0;
> }
> + if (old_mem->mem_type == AMDGPU_PL_GDS ||
> + old_mem->mem_type == AMDGPU_PL_GWS ||
> + old_mem->mem_type == AMDGPU_PL_OA ||
> + new_mem->mem_type == AMDGPU_PL_GDS ||
> + new_mem->mem_type == AMDGPU_PL_GWS ||
> + new_mem->mem_type == AMDGPU_PL_OA) {
> + /* Nothing to save here */
> + amdgpu_move_null(bo, new_mem);
> + return 0;
> + }
>
> if (!adev->mman.buffer_funcs_enabled)
> goto memcpy;
> --
> 2.14.1
>
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> amd-gfx at lists.freedesktop.org
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