NV_DMA_V0_ACCESS_RD 16 drivers/gpu/drm/nouveau/include/nvif/cl0002.h #define NV_DMA_V0_ACCESS_RDWR (NV_DMA_V0_ACCESS_RD | NV_DMA_V0_ACCESS_WR) NV_DMA_V0_ACCESS_RD 139 drivers/gpu/drm/nouveau/nvkm/engine/dma/user.c case NV_DMA_V0_ACCESS_RD: