Commit c2dbd69e authored by Philip Yang's avatar Philip Yang Committed by Alex Deucher
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drm/amdgpu: Use vm status_lock to protect pt free 



Use vm_status_lock to protect all vm_status state transitions to allow
them to happen without a reservation lock in unlocked page table
updates.

Signed-off-by: default avatarPhilip Yang <Philip.Yang@amd.com>
Acked-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 757eb2be

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

+3 −0
Original line number Diff line number Diff line
@@ -637,7 +637,10 @@ static void amdgpu_vm_pt_free(struct amdgpu_vm_bo_base *entry) 
	}

	ttm_bo_set_bulk_move(&entry->bo->tbo, NULL);

	entry->bo->vm_bo = NULL;



	spin_lock(&entry->vm->status_lock);

	list_del(&entry->vm_status);

	spin_unlock(&entry->vm->status_lock);

	amdgpu_bo_unref(&entry->bo);

}