diff options
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c index f413898dda37..267c1b7b8dcd 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c @@ -154,13 +154,13 @@ static int sdma_v4_4_2_init_microcode(struct amdgpu_device *adev) */ static uint64_t sdma_v4_4_2_ring_get_rptr(struct amdgpu_ring *ring) { - u64 *rptr; + u64 rptr; /* XXX check if swapping is necessary on BE */ - rptr = ((u64 *)&ring->adev->wb.wb[ring->rptr_offs]); + rptr = READ_ONCE(*((u64 *)&ring->adev->wb.wb[ring->rptr_offs])); - DRM_DEBUG("rptr before shift == 0x%016llx\n", *rptr); - return ((*rptr) >> 2); + DRM_DEBUG("rptr before shift == 0x%016llx\n", rptr); + return rptr >> 2; } /** |