1 files changed, 126 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/falcon.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/falcon.h
new file mode 100644
index 000000000..6427747b6
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/falcon.h
@@ -0,0 +1,126 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __NVKM_FALCON_H__
+#define __NVKM_FALCON_H__
+#define nvkm_falcon(p) container_of((p), struct nvkm_falcon, engine)
+#include <core/engine.h>
+struct nvkm_fifo_chan;
+struct nvkm_gpuobj;
+
+enum nvkm_falcon_dmaidx {
+	FALCON_DMAIDX_UCODE		= 0,
+	FALCON_DMAIDX_VIRT		= 1,
+	FALCON_DMAIDX_PHYS_VID		= 2,
+	FALCON_DMAIDX_PHYS_SYS_COH	= 3,
+	FALCON_DMAIDX_PHYS_SYS_NCOH	= 4,
+	FALCON_SEC2_DMAIDX_UCODE	= 6,
+};
+
+struct nvkm_falcon {
+	const struct nvkm_falcon_func *func;
+	const struct nvkm_subdev *owner;
+	const char *name;
+	u32 addr;
+
+	struct mutex mutex;
+	struct mutex dmem_mutex;
+	const struct nvkm_subdev *user;
+
+	u8 version;
+	u8 secret;
+	bool debug;
+	bool has_emem;
+
+	struct nvkm_memory *core;
+	bool external;
+
+	struct {
+		u32 limit;
+		u32 *data;
+		u32  size;
+		u8 ports;
+	} code;
+
+	struct {
+		u32 limit;
+		u32 *data;
+		u32  size;
+		u8 ports;
+	} data;
+
+	struct nvkm_engine engine;
+};
+
+/* This constructor must be called from the owner's oneinit() hook and
+ * *not* its constructor.  This is to ensure that DEVINIT has been
+ * completed, and that the device is correctly enabled before we touch
+ * falcon registers.
+ */
+int nvkm_falcon_v1_new(struct nvkm_subdev *owner, const char *name, u32 addr,
+		       struct nvkm_falcon **);
+
+void nvkm_falcon_del(struct nvkm_falcon **);
+int nvkm_falcon_get(struct nvkm_falcon *, const struct nvkm_subdev *);
+void nvkm_falcon_put(struct nvkm_falcon *, const struct nvkm_subdev *);
+
+int nvkm_falcon_new_(const struct nvkm_falcon_func *, struct nvkm_device *,
+		     int index, bool enable, u32 addr, struct nvkm_engine **);
+
+struct nvkm_falcon_func {
+	struct {
+		u32 *data;
+		u32  size;
+	} code;
+	struct {
+		u32 *data;
+		u32  size;
+	} data;
+	void (*init)(struct nvkm_falcon *);
+	void (*intr)(struct nvkm_falcon *, struct nvkm_fifo_chan *);
+	void (*load_imem)(struct nvkm_falcon *, void *, u32, u32, u16, u8, bool);
+	void (*load_dmem)(struct nvkm_falcon *, void *, u32, u32, u8);
+	void (*read_dmem)(struct nvkm_falcon *, u32, u32, u8, void *);
+	void (*bind_context)(struct nvkm_falcon *, struct nvkm_memory *);
+	int (*wait_for_halt)(struct nvkm_falcon *, u32);
+	int (*clear_interrupt)(struct nvkm_falcon *, u32);
+	void (*set_start_addr)(struct nvkm_falcon *, u32 start_addr);
+	void (*start)(struct nvkm_falcon *);
+	int (*enable)(struct nvkm_falcon *falcon);
+	void (*disable)(struct nvkm_falcon *falcon);
+
+	struct nvkm_sclass sclass[];
+};
+
+static inline u32
+nvkm_falcon_rd32(struct nvkm_falcon *falcon, u32 addr)
+{
+	return nvkm_rd32(falcon->owner->device, falcon->addr + addr);
+}
+
+static inline void
+nvkm_falcon_wr32(struct nvkm_falcon *falcon, u32 addr, u32 data)
+{
+	nvkm_wr32(falcon->owner->device, falcon->addr + addr, data);
+}
+
+static inline u32
+nvkm_falcon_mask(struct nvkm_falcon *falcon, u32 addr, u32 mask, u32 val)
+{
+	struct nvkm_device *device = falcon->owner->device;
+
+	return nvkm_mask(device, falcon->addr + addr, mask, val);
+}
+
+void nvkm_falcon_load_imem(struct nvkm_falcon *, void *, u32, u32, u16, u8,
+			   bool);
+void nvkm_falcon_load_dmem(struct nvkm_falcon *, void *, u32, u32, u8);
+void nvkm_falcon_read_dmem(struct nvkm_falcon *, u32, u32, u8, void *);
+void nvkm_falcon_bind_context(struct nvkm_falcon *, struct nvkm_memory *);
+void nvkm_falcon_set_start_addr(struct nvkm_falcon *, u32);
+void nvkm_falcon_start(struct nvkm_falcon *);
+int nvkm_falcon_wait_for_halt(struct nvkm_falcon *, u32);
+int nvkm_falcon_clear_interrupt(struct nvkm_falcon *, u32);
+int nvkm_falcon_enable(struct nvkm_falcon *);
+void nvkm_falcon_disable(struct nvkm_falcon *);
+int nvkm_falcon_reset(struct nvkm_falcon *);
+
+#endif