Commit 316baf09 authored by Felix Kuehling's avatar Felix Kuehling Committed by Alex Deucher
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drm/amdgpu: Reserve fences for VM update 



In amdgpu_dma_buf_move_notify reserve fences for the page table updates
in amdgpu_vm_clear_freed and amdgpu_vm_handle_moved. This fixes a BUG_ON
in dma_resv_add_fence when using SDMA for page table updates.

Signed-off-by: default avatarFelix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 51b79f33

drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c

+4 −1
Original line number Diff line number Diff line
@@ -403,6 +403,9 @@ amdgpu_dma_buf_move_notify(struct dma_buf_attachment *attach) 
				continue;

		}



		/* Reserve fences for two SDMA page table updates */

		r = dma_resv_reserve_fences(resv, 2);

		if (!r)

			r = amdgpu_vm_clear_freed(adev, vm, NULL);

		if (!r)

			r = amdgpu_vm_handle_moved(adev, vm);