diff options
| author | Felix Kuehling <Felix.Kuehling@amd.com> | 2021-05-19 04:46:02 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-05-22 01:00:05 +0300 |
| commit | 5bb198930a731795c93e650836ec5bd8b6cfae08 (patch) | |
| tree | 28b89150e77949b653d9a3533908448cb28bf3e9 | |
| parent | b453e42a6e8b9fa4580011e923963248c56b9d4d (diff) | |
| download | linux-5bb198930a731795c93e650836ec5bd8b6cfae08.tar.xz | |
drm/amdgpu: Use preemptible placement for KFD
KFD userptr BOs and SG BOs used for DMA mappings can be preempted with
CWSR. Therefore we can use preemptible placement and avoid unwanted
evictions due to GTT accounting.
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c index 928e8d57cd08..2b8b89535198 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c @@ -621,8 +621,8 @@ kfd_mem_attach_userptr(struct amdgpu_device *adev, struct kgd_mem *mem, ret = amdgpu_gem_object_create(adev, bo_size, 1, AMDGPU_GEM_DOMAIN_CPU, - 0, ttm_bo_type_sg, - mem->bo->tbo.base.resv, + AMDGPU_GEM_CREATE_PREEMPTIBLE, + ttm_bo_type_sg, mem->bo->tbo.base.resv, &gobj); if (ret) return ret; @@ -662,6 +662,7 @@ kfd_mem_attach_dmabuf(struct amdgpu_device *adev, struct kgd_mem *mem, dma_buf_put(mem->dmabuf); *bo = gem_to_amdgpu_bo(gobj); + (*bo)->flags |= AMDGPU_GEM_CREATE_PREEMPTIBLE; (*bo)->parent = amdgpu_bo_ref(mem->bo); return 0; @@ -1410,7 +1411,7 @@ int amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu( } else if (flags & KFD_IOC_ALLOC_MEM_FLAGS_USERPTR) { domain = AMDGPU_GEM_DOMAIN_GTT; alloc_domain = AMDGPU_GEM_DOMAIN_CPU; - alloc_flags = 0; + alloc_flags = AMDGPU_GEM_CREATE_PREEMPTIBLE; if (!offset || !*offset) return -EINVAL; user_addr = untagged_addr(*offset); |