xref: /linux/drivers/gpu/drm/nouveau/include/nvkm/subdev/instmem.h (revision 42422993cf28d456778ee9168d73758ec037cd51)
1 /* SPDX-License-Identifier: MIT */
2 #ifndef __NVKM_INSTMEM_H__
3 #define __NVKM_INSTMEM_H__
4 #include <core/subdev.h>
5 struct nvkm_memory;
6 
7 struct nvkm_instmem {
8 	const struct nvkm_instmem_func *func;
9 	struct nvkm_subdev subdev;
10 
11 	bool suspend;
12 
13 	spinlock_t lock;
14 	struct list_head list;
15 	struct list_head boot;
16 	u32 reserved;
17 
18 	/* <=nv4x: protects NV_PRAMIN/BAR2 MM
19 	 * >=nv50: protects BAR2 MM & LRU
20 	 */
21 	struct mutex mutex;
22 
23 	struct nvkm_memory *vbios;
24 	struct nvkm_ramht  *ramht;
25 	struct nvkm_memory *ramro;
26 	struct nvkm_memory *ramfc;
27 
28 	struct {
29 		struct sg_table fbsr;
30 		bool fbsr_valid;
31 	} rm;
32 };
33 
34 u32 nvkm_instmem_rd32(struct nvkm_instmem *, u32 addr);
35 void nvkm_instmem_wr32(struct nvkm_instmem *, u32 addr, u32 data);
36 int nvkm_instobj_new(struct nvkm_instmem *, u32 size, u32 align, bool zero, bool preserve,
37 		     struct nvkm_memory **);
38 int nvkm_instobj_wrap(struct nvkm_device *, struct nvkm_memory *, struct nvkm_memory **);
39 
40 int nv04_instmem_new(struct nvkm_device *, enum nvkm_subdev_type, int, struct nvkm_instmem **);
41 int nv40_instmem_new(struct nvkm_device *, enum nvkm_subdev_type, int, struct nvkm_instmem **);
42 int nv50_instmem_new(struct nvkm_device *, enum nvkm_subdev_type, int, struct nvkm_instmem **);
43 int gk20a_instmem_new(struct nvkm_device *, enum nvkm_subdev_type, int, struct nvkm_instmem **);
44 #endif
45