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| author |   Philip Yang <Philip.Yang@amd.com> | 2021-04-15 17:43:32 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2021-04-20 21:48:00 -0400 |
| commit | c46ebb6a6d9d28fce66595b56db070b0cc4fab71 (patch) | |
| tree | 1f4261847073083b15dd04869e2e989aeb43c182 /drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h | |
| parent | drm/amdkfd: register HMM device private zone (diff) | |
| download | linux-dev-c46ebb6a6d9d28fce66595b56db070b0cc4fab71.tar.xz linux-dev-c46ebb6a6d9d28fce66595b56db070b0cc4fab71.zip | |
drm/amdkfd: set memory limit to avoid OOM with HMM enabled
HMM migration alloc sizeof(struct page) on system memory for each VRAM
page, it is 1GB system memory reserved for 64GB VRAM. To avoid
application OOM, increase system memory used size based on VRAM size of
all GPUs, then application alloc memory will fail if system memory usage
reach the limit.
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h index 670e9f8d58b4..b3e5ecec316c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h @@ -275,6 +275,7 @@ void amdgpu_amdkfd_gpuvm_init_mem_limits(void); void amdgpu_amdkfd_gpuvm_destroy_cb(struct amdgpu_device *adev, struct amdgpu_vm *vm); void amdgpu_amdkfd_unreserve_memory_limit(struct amdgpu_bo *bo); +void amdgpu_amdkfd_reserve_system_mem(uint64_t size); #else static inline void amdgpu_amdkfd_gpuvm_init_mem_limits(void) |