1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bus.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bus.h
new file mode 100644
index 000000000000..2d40f0c2fdfc
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bus.h
@@ -0,0 +1,53 @@
+#ifndef __NOUVEAU_BUS_H__
+#define __NOUVEAU_BUS_H__
+
+#include <core/subdev.h>
+#include <core/device.h>
+
+struct nouveau_bus_intr {
+	u32 stat;
+	u32 unit;
+};
+
+struct nouveau_bus {
+	struct nouveau_subdev base;
+	int (*hwsq_exec)(struct nouveau_bus *, u32 *, u32);
+	u32 hwsq_size;
+};
+
+static inline struct nouveau_bus *
+nouveau_bus(void *obj)
+{
+	return (void *)nouveau_subdev(obj, NVDEV_SUBDEV_BUS);
+}
+
+#define nouveau_bus_create(p, e, o, d)                                         \
+	nouveau_subdev_create_((p), (e), (o), 0, "PBUS", "master",             \
+			       sizeof(**d), (void **)d)
+#define nouveau_bus_destroy(p)                                                 \
+	nouveau_subdev_destroy(&(p)->base)
+#define nouveau_bus_init(p)                                                    \
+	nouveau_subdev_init(&(p)->base)
+#define nouveau_bus_fini(p, s)                                                 \
+	nouveau_subdev_fini(&(p)->base, (s))
+
+#define _nouveau_bus_dtor _nouveau_subdev_dtor
+#define _nouveau_bus_init _nouveau_subdev_init
+#define _nouveau_bus_fini _nouveau_subdev_fini
+
+extern struct nouveau_oclass *nv04_bus_oclass;
+extern struct nouveau_oclass *nv31_bus_oclass;
+extern struct nouveau_oclass *nv50_bus_oclass;
+extern struct nouveau_oclass *nv94_bus_oclass;
+extern struct nouveau_oclass *nvc0_bus_oclass;
+
+/* interface to sequencer */
+struct nouveau_hwsq;
+int  nouveau_hwsq_init(struct nouveau_bus *, struct nouveau_hwsq **);
+int  nouveau_hwsq_fini(struct nouveau_hwsq **, bool exec);
+void nouveau_hwsq_wr32(struct nouveau_hwsq *, u32 addr, u32 data);
+void nouveau_hwsq_setf(struct nouveau_hwsq *, u8 flag, int data);
+void nouveau_hwsq_wait(struct nouveau_hwsq *, u8 flag, u8 data);
+void nouveau_hwsq_nsec(struct nouveau_hwsq *, u32 nsec);
+
+#endif