drm/amdgpu: use explicit limit for VRAM<->GTT moves

Use an explicit limit when moving things around to
force address space allocation.

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>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 3daf858..dfb1223 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -339,7 +339,7 @@ static int amdgpu_move_vram_ram(struct ttm_buffer_object *bo,
        placement.num_busy_placement = 1;
        placement.busy_placement = &placements;
        placements.fpfn = 0;
-       placements.lpfn = 0;
+       placements.lpfn = adev->mc.gtt_size >> PAGE_SHIFT;
        placements.flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_TT;
        r = ttm_bo_mem_space(bo, &placement, &tmp_mem,
                             interruptible, no_wait_gpu);
@@ -386,7 +386,7 @@ static int amdgpu_move_ram_vram(struct ttm_buffer_object *bo,
        placement.num_busy_placement = 1;
        placement.busy_placement = &placements;
        placements.fpfn = 0;
-       placements.lpfn = 0;
+       placements.lpfn = adev->mc.gtt_size >> PAGE_SHIFT;
        placements.flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_TT;
        r = ttm_bo_mem_space(bo, &placement, &tmp_mem,
                             interruptible, no_wait_gpu);