From f45dc74c93241ad0125fbc08c48b2ebe20f2f472 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Christian=20K=C3=B6nig?= Date: Thu, 17 Nov 2016 12:24:48 +0100 Subject: [PATCH] drm/amdgpu: improve AMDGPU_GEM_CREATE_VRAM_CLEARED handling (v2) MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Drop this whole reserve/unreserve dance, just lock the reservation object manually when creating the BO. v2: rebase on dma_fence renaming Signed-off-by: Christian König Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 29 +++++++++++----------- 1 file changed, 14 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index 611da3bd2981..bf79b73e1538 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -371,36 +371,36 @@ int amdgpu_bo_create_restricted(struct amdgpu_device *adev, amdgpu_fill_placement_to_bo(bo, placement); /* Kernel allocation are uninterruptible */ + + if (!resv) { + bool locked; + + reservation_object_init(&bo->tbo.ttm_resv); + locked = ww_mutex_trylock(&bo->tbo.ttm_resv.lock); + WARN_ON(!locked); + } r = ttm_bo_init(&adev->mman.bdev, &bo->tbo, size, type, &bo->placement, page_align, !kernel, NULL, - acc_size, sg, resv, &amdgpu_ttm_bo_destroy); - if (unlikely(r != 0)) { + acc_size, sg, resv ? resv : &bo->tbo.ttm_resv, + &amdgpu_ttm_bo_destroy); + if (unlikely(r != 0)) return r; - } if (flags & AMDGPU_GEM_CREATE_VRAM_CLEARED && bo->tbo.mem.placement & TTM_PL_FLAG_VRAM) { struct dma_fence *fence; - r = amdgpu_bo_reserve(bo, false); - if (unlikely(r != 0)) - goto fail_free; - - amdgpu_ttm_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_VRAM); - r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false); - if (unlikely(r != 0)) - goto fail_unreserve; - r = amdgpu_fill_buffer(bo, 0, bo->tbo.resv, &fence); if (unlikely(r)) goto fail_unreserve; amdgpu_bo_fence(bo, fence, false); - amdgpu_bo_unreserve(bo); dma_fence_put(bo->tbo.moving); bo->tbo.moving = dma_fence_get(fence); dma_fence_put(fence); } + if (!resv) + ww_mutex_unlock(&bo->tbo.resv->lock); *bo_ptr = bo; trace_amdgpu_bo_create(bo); @@ -408,8 +408,7 @@ int amdgpu_bo_create_restricted(struct amdgpu_device *adev, return 0; fail_unreserve: - amdgpu_bo_unreserve(bo); -fail_free: + ww_mutex_unlock(&bo->tbo.resv->lock); amdgpu_bo_unref(&bo); return r; } -- 2.45.2