linux_kernel/drivers/gpu/drm/nouveau/include/nvkm/subdev/fb.h

#ifndef __NVKM_FB_H__
#define __NVKM_FB_H__
#include <core/subdev.h>

#include <subdev/mmu.h>

/* memory type/access flags, do not match hardware values */
#define NV_MEM_ACCESS_RO  1
#define NV_MEM_ACCESS_WO  2
#define NV_MEM_ACCESS_RW (NV_MEM_ACCESS_RO | NV_MEM_ACCESS_WO)
#define NV_MEM_ACCESS_SYS 4
#define NV_MEM_ACCESS_VM  8
#define NV_MEM_ACCESS_NOSNOOP 16

#define NV_MEM_TARGET_VRAM        0
#define NV_MEM_TARGET_PCI         1
#define NV_MEM_TARGET_PCI_NOSNOOP 2
#define NV_MEM_TARGET_VM          3
#define NV_MEM_TARGET_GART        4

#define NVKM_RAM_TYPE_VM 0x7f
#define NV_MEM_COMP_VM 0x03

struct nvkm_mem {
	struct drm_device *dev;

	struct nvkm_vma bar_vma;
	struct nvkm_vma vma[2];
	u8  page_shift;

	struct nvkm_mm_node *tag;
	struct list_head regions;
	dma_addr_t *pages;
	u32 memtype;
	u64 offset;
	u64 size;
	struct sg_table *sg;
};

struct nvkm_fb_tile {
	struct nvkm_mm_node *tag;
	u32 addr;
	u32 limit;
	u32 pitch;
	u32 zcomp;
};

struct nvkm_fb {
	const struct nvkm_fb_func *func;
	struct nvkm_subdev subdev;

	struct nvkm_ram *ram;

	struct {
		struct nvkm_fb_tile region[16];
		int regions;
	} tile;
};

bool nvkm_fb_memtype_valid(struct nvkm_fb *, u32 memtype);
void nvkm_fb_tile_init(struct nvkm_fb *, int region, u32 addr, u32 size,
		       u32 pitch, u32 flags, struct nvkm_fb_tile *);
void nvkm_fb_tile_fini(struct nvkm_fb *, int region, struct nvkm_fb_tile *);
void nvkm_fb_tile_prog(struct nvkm_fb *, int region, struct nvkm_fb_tile *);

int nv04_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int nv10_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int nv1a_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int nv20_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int nv25_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int nv30_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int nv35_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int nv36_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int nv40_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int nv41_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int nv44_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int nv46_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int nv47_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int nv49_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int nv4e_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int nv50_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int g84_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int gt215_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int mcp77_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int mcp89_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int gf100_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int gk104_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int gk20a_fb_new(struct nvkm_device *, int, struct nvkm_fb **);
int gm107_fb_new(struct nvkm_device *, int, struct nvkm_fb **);

#include <subdev/bios.h>
#include <subdev/bios/ramcfg.h>

struct nvkm_ram_data {
	struct list_head head;
	struct nvbios_ramcfg bios;
	u32 freq;
};

enum nvkm_ram_type {
	NVKM_RAM_TYPE_UNKNOWN = 0,
	NVKM_RAM_TYPE_STOLEN,
	NVKM_RAM_TYPE_SGRAM,
	NVKM_RAM_TYPE_SDRAM,
	NVKM_RAM_TYPE_DDR1,
	NVKM_RAM_TYPE_DDR2,
	NVKM_RAM_TYPE_DDR3,
	NVKM_RAM_TYPE_GDDR2,
	NVKM_RAM_TYPE_GDDR3,
	NVKM_RAM_TYPE_GDDR4,
	NVKM_RAM_TYPE_GDDR5
};

struct nvkm_ram {
	const struct nvkm_ram_func *func;
	struct nvkm_fb *fb;
	enum nvkm_ram_type type;
	u64 size;

#define NVKM_RAM_MM_SHIFT 12
	struct nvkm_mm vram;
	struct nvkm_mm tags;
	u64 stolen;

	int ranks;
	int parts;
	int part_mask;

	u32 freq;
	u32 mr[16];
	u32 mr1_nuts;

	struct nvkm_ram_data *next;
	struct nvkm_ram_data former;
	struct nvkm_ram_data xition;
	struct nvkm_ram_data target;
};

struct nvkm_ram_func {
	void *(*dtor)(struct nvkm_ram *);
	int (*init)(struct nvkm_ram *);

	int (*get)(struct nvkm_ram *, u64 size, u32 align, u32 size_nc,
		   u32 type, struct nvkm_mem **);
	void (*put)(struct nvkm_ram *, struct nvkm_mem **);

	int (*calc)(struct nvkm_ram *, u32 freq);
	int (*prog)(struct nvkm_ram *);
	void (*tidy)(struct nvkm_ram *);
};
#endif