src/gallium/drivers/nouveau/nouveau_screen.h

#ifndef __NOUVEAU_SCREEN_H__
#define __NOUVEAU_SCREEN_H__

#include "pipe/p_screen.h"
#include "util/u_memory.h"

typedef uint32_t u32;

extern int nouveau_mesa_debug;

struct nouveau_bo;

struct nouveau_screen {
	struct pipe_screen base;
	struct nouveau_device *device;
	struct nouveau_object *channel;
	struct nouveau_client *client;
	struct nouveau_pushbuf *pushbuf;

	unsigned vidmem_bindings; /* PIPE_BIND_* where VRAM placement is desired */
	unsigned sysmem_bindings; /* PIPE_BIND_* where GART placement is desired */
	unsigned lowmem_bindings; /* PIPE_BIND_* that require an address < 4 GiB */
	/*
	 * For bindings with (vidmem & sysmem) bits set set, PIPE_USAGE_* decides
	 * placement.
	 */

	uint16_t class_3d;

	struct {
		struct nouveau_fence *head;
		struct nouveau_fence *tail;
		struct nouveau_fence *current;
		u32 sequence;
		u32 sequence_ack;
		void (*emit)(struct pipe_screen *, u32 *sequence);
		u32  (*update)(struct pipe_screen *);
	} fence;

	struct nouveau_mman *mm_VRAM;
	struct nouveau_mman *mm_GART;

	int64_t cpu_gpu_time_delta;
};

static INLINE struct nouveau_screen *
nouveau_screen(struct pipe_screen *pscreen)
{
	return (struct nouveau_screen *)pscreen;
}

boolean
nouveau_screen_bo_get_handle(struct pipe_screen *pscreen,
			     struct nouveau_bo *bo,
			     unsigned stride,
			     struct winsys_handle *whandle);
struct nouveau_bo *
nouveau_screen_bo_from_handle(struct pipe_screen *pscreen,
			      struct winsys_handle *whandle,
			      unsigned *out_stride);


int nouveau_screen_init(struct nouveau_screen *, struct nouveau_device *);
void nouveau_screen_fini(struct nouveau_screen *);

void nouveau_screen_init_vdec(struct nouveau_screen *);

#endif