1 files changed, 126 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h
new file mode 100644
index 000000000000..27f05de8fd0a
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h
@@ -0,0 +1,126 @@
+#ifndef __NOUVEAU_FIFO_H__
+#define __NOUVEAU_FIFO_H__
+
+#include <core/namedb.h>
+#include <core/gpuobj.h>
+#include <core/engine.h>
+#include <core/event.h>
+
+struct nouveau_fifo_chan {
+	struct nouveau_namedb namedb;
+	struct nouveau_dmaobj *pushdma;
+	struct nouveau_gpuobj *pushgpu;
+	void __iomem *user;
+	u64 addr;
+	u32 size;
+	u16 chid;
+	atomic_t refcnt; /* NV04_NVSW_SET_REF */
+};
+
+static inline struct nouveau_fifo_chan *
+nouveau_fifo_chan(void *obj)
+{
+	return (void *)nv_namedb(obj);
+}
+
+#define nouveau_fifo_channel_create(p,e,c,b,a,s,n,m,d)                         \
+	nouveau_fifo_channel_create_((p), (e), (c), (b), (a), (s), (n),        \
+				     (m), sizeof(**d), (void **)d)
+#define nouveau_fifo_channel_init(p)                                           \
+	nouveau_namedb_init(&(p)->namedb)
+#define nouveau_fifo_channel_fini(p,s)                                         \
+	nouveau_namedb_fini(&(p)->namedb, (s))
+
+int  nouveau_fifo_channel_create_(struct nouveau_object *,
+				  struct nouveau_object *,
+				  struct nouveau_oclass *,
+				  int bar, u32 addr, u32 size, u32 push,
+				  u64 engmask, int len, void **);
+void nouveau_fifo_channel_destroy(struct nouveau_fifo_chan *);
+
+#define _nouveau_fifo_channel_init _nouveau_namedb_init
+#define _nouveau_fifo_channel_fini _nouveau_namedb_fini
+
+void _nouveau_fifo_channel_dtor(struct nouveau_object *);
+int  _nouveau_fifo_channel_map(struct nouveau_object *, u64 *, u32 *);
+u32  _nouveau_fifo_channel_rd32(struct nouveau_object *, u64);
+void _nouveau_fifo_channel_wr32(struct nouveau_object *, u64, u32);
+int  _nouveau_fifo_channel_ntfy(struct nouveau_object *, u32, struct nvkm_event **);
+
+struct nouveau_fifo_base {
+	struct nouveau_gpuobj gpuobj;
+};
+
+#define nouveau_fifo_context_create(p,e,c,g,s,a,f,d)                           \
+	nouveau_gpuobj_create((p), (e), (c), 0, (g), (s), (a), (f), (d))
+#define nouveau_fifo_context_destroy(p)                                        \
+	nouveau_gpuobj_destroy(&(p)->gpuobj)
+#define nouveau_fifo_context_init(p)                                           \
+	nouveau_gpuobj_init(&(p)->gpuobj)
+#define nouveau_fifo_context_fini(p,s)                                         \
+	nouveau_gpuobj_fini(&(p)->gpuobj, (s))
+
+#define _nouveau_fifo_context_dtor _nouveau_gpuobj_dtor
+#define _nouveau_fifo_context_init _nouveau_gpuobj_init
+#define _nouveau_fifo_context_fini _nouveau_gpuobj_fini
+#define _nouveau_fifo_context_rd32 _nouveau_gpuobj_rd32
+#define _nouveau_fifo_context_wr32 _nouveau_gpuobj_wr32
+
+struct nouveau_fifo {
+	struct nouveau_engine base;
+
+	struct nvkm_event cevent; /* channel creation event */
+	struct nvkm_event uevent; /* async user trigger */
+
+	struct nouveau_object **channel;
+	spinlock_t lock;
+	u16 min;
+	u16 max;
+
+	int  (*chid)(struct nouveau_fifo *, struct nouveau_object *);
+	void (*pause)(struct nouveau_fifo *, unsigned long *);
+	void (*start)(struct nouveau_fifo *, unsigned long *);
+};
+
+static inline struct nouveau_fifo *
+nouveau_fifo(void *obj)
+{
+	return (void *)nouveau_engine(obj, NVDEV_ENGINE_FIFO);
+}
+
+#define nouveau_fifo_create(o,e,c,fc,lc,d)                                     \
+	nouveau_fifo_create_((o), (e), (c), (fc), (lc), sizeof(**d), (void **)d)
+#define nouveau_fifo_init(p)                                                   \
+	nouveau_engine_init(&(p)->base)
+#define nouveau_fifo_fini(p,s)                                                 \
+	nouveau_engine_fini(&(p)->base, (s))
+
+int nouveau_fifo_create_(struct nouveau_object *, struct nouveau_object *,
+			 struct nouveau_oclass *, int min, int max,
+			 int size, void **);
+void nouveau_fifo_destroy(struct nouveau_fifo *);
+const char *
+nouveau_client_name_for_fifo_chid(struct nouveau_fifo *fifo, u32 chid);
+
+#define _nouveau_fifo_init _nouveau_engine_init
+#define _nouveau_fifo_fini _nouveau_engine_fini
+
+extern struct nouveau_oclass *nv04_fifo_oclass;
+extern struct nouveau_oclass *nv10_fifo_oclass;
+extern struct nouveau_oclass *nv17_fifo_oclass;
+extern struct nouveau_oclass *nv40_fifo_oclass;
+extern struct nouveau_oclass *nv50_fifo_oclass;
+extern struct nouveau_oclass *nv84_fifo_oclass;
+extern struct nouveau_oclass *nvc0_fifo_oclass;
+extern struct nouveau_oclass *nve0_fifo_oclass;
+extern struct nouveau_oclass *gk20a_fifo_oclass;
+extern struct nouveau_oclass *nv108_fifo_oclass;
+
+int  nouveau_fifo_uevent_ctor(struct nouveau_object *, void *, u32,
+			      struct nvkm_notify *);
+void nouveau_fifo_uevent(struct nouveau_fifo *);
+
+void nv04_fifo_intr(struct nouveau_subdev *);
+int  nv04_fifo_context_attach(struct nouveau_object *, struct nouveau_object *);
+
+#endif