Re: [PATCH] drm/amdgpu: Fix VRAM memory accounting

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On 2024-04-23 14:56, Mukul Joshi wrote:
Subtract the VRAM pinned memory when checking for available memory
in amdgpu_amdkfd_reserve_mem_limit function since that memory is not
available for use.

Signed-off-by: Mukul Joshi <mukul.joshi@xxxxxxx>

Reviewed-by: Felix Kuehling <felix.kuehling@xxxxxxx>


---
  drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 2 +-
  1 file changed, 1 insertion(+), 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 101a2836480d..f672205243e0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
@@ -220,7 +220,7 @@ 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 && xcp_id >= 0 && adev->kfd.vram_used[xcp_id] + vram_needed >
-	     vram_size - reserved_for_pt)) {
+	     vram_size - reserved_for_pt - atomic64_read(&adev->vram_pin_size))) {
  		ret = -ENOMEM;
  		goto release;
  	}



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