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drm/amdgpu: stop mapping BOs to GTT

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No need to map BOs to GTT on eviction and intermediate transfers any more.

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 2017-06-30 12:19:42 +02:00 committed by Alex Deucher
parent abca90f1c8
commit 5e7e83963f
1 changed files with 2 additions and 17 deletions
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19
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
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@ -199,7 +199,6 @@ static void amdgpu_evict_flags(struct ttm_buffer_object *bo,
.lpfn = 0, .lpfn = 0,
.flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM .flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM
}; };
unsigned i;
if (!amdgpu_ttm_bo_is_amdgpu_bo(bo)) { if (!amdgpu_ttm_bo_is_amdgpu_bo(bo)) {
placement->placement = &placements; placement->placement = &placements;
@ -217,20 +216,6 @@ static void amdgpu_evict_flags(struct ttm_buffer_object *bo,
amdgpu_ttm_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_CPU); amdgpu_ttm_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_CPU);
} else { } else {
amdgpu_ttm_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_GTT); amdgpu_ttm_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_GTT);
for (i = 0; i < abo->placement.num_placement; ++i) {
if (!(abo->placements[i].flags &
TTM_PL_FLAG_TT))
continue;
if (abo->placements[i].lpfn)
continue;
/* set an upper limit to force directly
* allocating address space for the BO.
*/
abo->placements[i].lpfn =
adev->mc.gtt_size >> PAGE_SHIFT;
}
} }
break; break;
case TTM_PL_TT: case TTM_PL_TT:
@ -391,7 +376,7 @@ static int amdgpu_move_vram_ram(struct ttm_buffer_object *bo,
placement.num_busy_placement = 1; placement.num_busy_placement = 1;
placement.busy_placement = &placements; placement.busy_placement = &placements;
placements.fpfn = 0; placements.fpfn = 0;
placements.lpfn = adev->mc.gtt_size >> PAGE_SHIFT; placements.lpfn = 0;
placements.flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_TT; placements.flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_TT;
r = ttm_bo_mem_space(bo, &placement, &tmp_mem, r = ttm_bo_mem_space(bo, &placement, &tmp_mem,
interruptible, no_wait_gpu); interruptible, no_wait_gpu);
@ -438,7 +423,7 @@ static int amdgpu_move_ram_vram(struct ttm_buffer_object *bo,
placement.num_busy_placement = 1; placement.num_busy_placement = 1;
placement.busy_placement = &placements; placement.busy_placement = &placements;
placements.fpfn = 0; placements.fpfn = 0;
placements.lpfn = adev->mc.gtt_size >> PAGE_SHIFT; placements.lpfn = 0;
placements.flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_TT; placements.flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_TT;
r = ttm_bo_mem_space(bo, &placement, &tmp_mem, r = ttm_bo_mem_space(bo, &placement, &tmp_mem,
interruptible, no_wait_gpu); interruptible, no_wait_gpu);