drm/nouveau/fifo: add engine_id hook

Will be used by common code in subsequent commits to replace arrays
indexed by subdev index.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/channv04.h b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/channv04.h
index 60ca79465aff..dbff7a44dbd8 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/channv04.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/channv04.h
@@ -9,6 +9,10 @@ struct nv04_fifo_chan {
 	struct nvkm_fifo_chan base;
 	struct nv04_fifo *fifo;
 	u32 ramfc;
+#define NV04_FIFO_ENGN_SW   0
+#define NV04_FIFO_ENGN_GR   1
+#define NV04_FIFO_ENGN_MPEG 2
+#define NV04_FIFO_ENGN_DMA  3
 	struct nvkm_gpuobj *engn[NVKM_SUBDEV_NR];
 };