From 08291c5c2ea76af86b6a3d8ef78c60f3ef8a8413 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Mon, 12 Sep 2016 16:06:18 +0200 Subject: drm/amdgpu: use explicit GTT limit for evictions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This way the address space gets allocated immediately. Signed-off-by: Christian König Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 8aa3fe6c270c..3daf85897d7c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -201,6 +201,7 @@ static void amdgpu_evict_flags(struct ttm_buffer_object *bo, .lpfn = 0, .flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM }; + unsigned i; if (!amdgpu_ttm_bo_is_amdgpu_bo(bo)) { placement->placement = &placements; @@ -212,10 +213,25 @@ static void amdgpu_evict_flags(struct ttm_buffer_object *bo, rbo = container_of(bo, struct amdgpu_bo, tbo); switch (bo->mem.mem_type) { case TTM_PL_VRAM: - if (rbo->adev->mman.buffer_funcs_ring->ready == false) + if (rbo->adev->mman.buffer_funcs_ring->ready == false) { amdgpu_ttm_placement_from_domain(rbo, AMDGPU_GEM_DOMAIN_CPU); - else + } else { amdgpu_ttm_placement_from_domain(rbo, AMDGPU_GEM_DOMAIN_GTT); + for (i = 0; i < rbo->placement.num_placement; ++i) { + if (!(rbo->placements[i].flags & + TTM_PL_FLAG_TT)) + continue; + + if (rbo->placements[i].lpfn) + continue; + + /* set an upper limit to force directly + * allocating address space for the BO. + */ + rbo->placements[i].lpfn = + rbo->adev->mc.gtt_size >> PAGE_SHIFT; + } + } break; case TTM_PL_TT: default: -- cgit v1.2.3