DMA_RPTR_WRITEBACK_ENABLE  161 drivers/gpu/drm/amd/amdgpu/si_dma.c 		rb_cntl |= DMA_RPTR_WRITEBACK_ENABLE;
DMA_RPTR_WRITEBACK_ENABLE  228 drivers/gpu/drm/radeon/ni_dma.c 			rb_cntl |= DMA_RPTR_WRITEBACK_ENABLE;
DMA_RPTR_WRITEBACK_ENABLE  149 drivers/gpu/drm/radeon/r600_dma.c 		rb_cntl |= DMA_RPTR_WRITEBACK_ENABLE;