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drm/amdkfd: Fix a memory limit issue

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It is to resolve a regression, which fails to allocate
VRAM due to no free memory in application, the reason
is we add check of vram_pin_size for memory limit, and
application is pinning the memory for Peerdirect, KFD
should not count it in memory limit. So removing
vram_pin_size will resolve it.

Signed-off-by: Eric Huang <jinhuieric.huang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Eric Huang 2022-11-14 11:43:48 -05:00 committed by Alex Deucher
parent 192039f122
commit 6f9eea4392
1 changed files with 1 additions and 3 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
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@ -171,9 +171,7 @@ int amdgpu_amdkfd_reserve_mem_limit(struct amdgpu_device *adev,
(kfd_mem_limit.ttm_mem_used + ttm_mem_needed >
kfd_mem_limit.max_ttm_mem_limit) ||
(adev && adev->kfd.vram_used + vram_needed >
adev->gmc.real_vram_size -
atomic64_read(&adev->vram_pin_size) -
reserved_for_pt)) {
adev->gmc.real_vram_size - reserved_for_pt)) {
ret = -ENOMEM;
goto release;
}