[PATCH AUTOSEL 6.0 28/44] drm/amdkfd: Fix a memory limit issue

[Sasha Levin]

From: Eric Huang <jinhuieric.huang@xxxxxxx>

[ Upstream commit 6f9eea4392a178af19360694b1db64f985d0b459 ]

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@xxxxxxx>
Reviewed-by: Felix Kuehling <Felix.Kuehling@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 4 +---
 1 file changed, 1 insertion(+), 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 93ad00453f4b..7db4aef9c45c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
@@ -170,9 +170,7 @@ 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;
 	}
-- 
2.35.1