sdma_v2_4_ring_insert_nop 258 drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c sdma_v2_4_ring_insert_nop(ring, (2 - lower_32_bits(ring->wptr)) & 7); sdma_v2_4_ring_insert_nop 1157 drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c .insert_nop = sdma_v2_4_ring_insert_nop,