From c2dbd69e7b3a02b39ebac262c8c6c7f53df584c7 Mon Sep 17 00:00:00 2001 From: Philip Yang Date: Fri, 16 Sep 2022 09:30:43 -0400 Subject: drm/amdgpu: Use vm status_lock to protect pt free MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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: Philip Yang Acked-by: Felix Kuehling Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c index 88de9f0d4728..61a4b7182d44 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c @@ -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); } -- cgit v1.2.3