[PATCH 1/2] drm/amdgpu: always allocate cleared VRAM for KFD allocations
Alex Deucher
alexander.deucher at amd.com
Tue Mar 26 15:52:02 UTC 2024
This adds allocation latency, but aligns better with user
expectations. The latency should improve with the drm buddy
clearing patches that Arun has been working on.
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
index 0ae9fd844623..f9a4ea082821 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
@@ -1709,7 +1709,8 @@ int amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu(
alloc_domain = AMDGPU_GEM_DOMAIN_GTT;
alloc_flags = 0;
} else {
- alloc_flags = AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE;
+ alloc_flags = AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE |
+ AMDGPU_GEM_CREATE_VRAM_CLEARED;
alloc_flags |= (flags & KFD_IOC_ALLOC_MEM_FLAGS_PUBLIC) ?
AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED : 0;
}
--
2.44.0
More information about the amd-gfx
mailing list