From 53766e5adac75872e9d413cdbfd0e47ae40701f9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Thu, 27 Jul 2017 14:52:53 +0200 Subject: [PATCH] drm/amdgpu: improve amdgpu_bo_create_kernel MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Make allocating the new BO optional. Signed-off-by: Christian König Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index 8fddea4bc146..81d40e3bfbdb 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -239,15 +239,20 @@ int amdgpu_bo_create_kernel(struct amdgpu_device *adev, u32 domain, struct amdgpu_bo **bo_ptr, u64 *gpu_addr, void **cpu_addr) { + bool free = false; int r; - r = amdgpu_bo_create(adev, size, align, true, domain, - AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED | - AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS, - NULL, NULL, bo_ptr); - if (r) { - dev_err(adev->dev, "(%d) failed to allocate kernel bo\n", r); - return r; + if (!*bo_ptr) { + r = amdgpu_bo_create(adev, size, align, true, domain, + AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED | + AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS, + NULL, NULL, bo_ptr); + if (r) { + dev_err(adev->dev, "(%d) failed to allocate kernel bo\n", + r); + return r; + } + free = true; } r = amdgpu_bo_reserve(*bo_ptr, false); @@ -278,7 +283,8 @@ int amdgpu_bo_create_kernel(struct amdgpu_device *adev, amdgpu_bo_unreserve(*bo_ptr); error_free: - amdgpu_bo_unref(bo_ptr); + if (free) + amdgpu_bo_unref(bo_ptr); return r; }