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drm/amdgpu: stop crashing on GDS/GWS/OA eviction 

Simply ignore any copying here.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2018-09-14 20:44:17 +02:00 committed by Alex Deucher
parent 0ee8685392
commit 3b2de69944
1 changed files with 18 additions and 0 deletions
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18
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
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@ -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;