/*
 * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * on the rights to use, copy, modify, merge, publish, distribute, sub
 * license, and/or sell copies of the Software, and to permit persons to whom
 * the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 * USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors:
 *      Jerome Glisse
 */
#ifndef R600_H
#define R600_H

#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "xf86drm.h"
#include "radeon_bo.h"
#include "radeon_drm.h"
#include "r600_winsys.h"

#define R600_MAX_WORK	256

struct r600_winsys;
struct r600_atom;

struct radeon_ib {
	u32	*ptr;
	u32	cpkts;
	u32	length_dw;
	u32	*relocs;
	u32	crelocs;
	u32	nrelocs;
};

typedef int (*r600_atom_create_t)(struct r600_winsys*, struct r600_atom*, void*);
typedef int (*r600_atom_emit_t)(struct r600_winsys*, struct r600_atom*, void*, struct radeon_ib*);

struct r600_atom {
	int				refcount;
	u32				type;
	u32				id;
	u32				nflushes;
	u32				npkts;
	u32				nbo;
	u32				pkts[1024];
	struct radeon_bo		*bo[32];
	u32				flags[32];
	void				*state;
	r600_atom_emit_t		emit;
};

struct r600_atom_flush {
	u32			flags;
	struct radeon_bo	*bo;
};

struct r600_work {
	struct r600_atom		*atoms[R600_BATCH_NATOMS];
	struct r600_atom		*emit_atoms[R600_BATCH_NATOMS];
	u32				nemit_atoms;
	u32				nflush;
	struct r600_atom_flush		flush[480];
	u32				npkts;
	struct r600_batch		drm;
};

struct r600_scheduler {
	struct radeon_ib		*ib;
	u32				npkts;
	u32				nwork;
	struct r600_work		work[R600_MAX_WORK];
	u32				last_id[R600_BATCH_NATOMS];
};

struct r600_winsys {
	int				fd;
	struct radeon_bo		*bo[32];
	u32				nbo;
	struct r600_scheduler		scheduler;
	unsigned			npipes;
	unsigned			nbanks;
	unsigned			group_bytes;
	struct radeon_bo_manager	*bom;
};

extern void r600_atom_ref(struct r600_atom *atom);
extern u32 radeon_ib_reloc(struct radeon_ib *ib, struct radeon_bo *bo, u32 d);
extern int radeon_ib_get(struct r600_winsys *rdev, struct radeon_ib **ib);
extern void radeon_ib_free(struct radeon_ib *ib);
extern int radeon_ib_schedule(struct r600_winsys *rdev, struct radeon_ib *ib);
extern int r600_atom_emit_default(struct r600_winsys *rdev, struct r600_atom *atom,
					void *data, struct radeon_ib *ib);
extern void r600_winsys_set_bo_list(struct r600_winsys *rdev, u32 nbo, struct radeon_bo **bo);
extern struct radeon_bo *radeon_bo_lookup(struct r600_winsys *rdev, u32 handle);
extern u64 crc_64(void *d, size_t len);
/* R700 */
extern void r700_scheduler_states_default(struct r600_winsys *rdev, struct r600_scheduler *scheduler);
extern int r600_atoms_init(struct r600_winsys *rdev);
extern int r600_draw_cmd_size(struct r600_batch *batch);
extern int r600_draw_cmd_emit(struct radeon_ib *ib, struct r600_batch *batch);
extern void r600_memcpy_bo(struct radeon_bo *bo, u32 *src, u32 size);

static inline int radeon_ib_begin(struct radeon_ib *ib, u32 ndw)
{
	if ((ib->cpkts + ndw) > ib->length_dw)
		return -ENOMEM;
	return 0;
}

static inline int radeon_ib_copy(struct radeon_ib *ib, u32 *pkts, u32 ndw)
{
	if ((ib->cpkts + ndw) > ib->length_dw) {
		fprintf(stderr, "IB FULL !\n");
		return -ENOMEM;
	}
	memcpy(&ib->ptr[ib->cpkts], pkts, ndw * 4);
	ib->cpkts += ndw;
	return 0;
}

#endif