/* $NetBSD: agp_i810var.h,v 1.7 2018/08/27 00:51:37 riastradh Exp $ */

/* $NetBSD: agp_i810var.h,v 1.7 2018/08/27 00:51:37 riastradh Exp $ */

/*-
* Copyright (c) 2000 Doug Rabson
* Copyright (c) 2000 Ruslan Ermilov
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/

#include <sys/types.h>
#include <sys/bus.h>

#include <dev/pci/pcivar.h>

#include <dev/pci/agpvar.h>

struct agp_i810_softc {
struct pci_attach_args vga_pa; /* integrated graphics device args */
int chiptype; /* chipset family: i810, i830, &c. */
uint32_t stolen; /* pages of stolen graphics memory */

/* Memory-mapped I/O for integrated graphics device registers. */
bus_space_tag_t bst;
bus_space_handle_t bsh;
bus_size_t size;

/* Graphics translation table. */
bus_space_tag_t gtt_bst;
bus_space_handle_t gtt_bsh;
bus_size_t gtt_size;

/* Chipset flush page. */
bus_space_tag_t flush_bst;
bus_space_handle_t flush_bsh;
bus_addr_t flush_addr;

/* i810-only fields. */
struct agp_gatt *gatt; /* i810-only OS-allocated GTT */
uint32_t dcache_size; /* i810-only on-chip memory size */

/* Cached pgtblctl register for resume. */
pcireg_t pgtblctl;
};

extern struct agp_softc *agp_i810_sc;

#define AGP_I810_GTT_VALID 0x01
#define AGP_I810_GTT_I810_DCACHE 0x02 /* i810-only */
#define AGP_I810_GTT_CACHED 0x06 /* >=i830 */

int agp_i810_write_gtt_entry(struct agp_i810_softc *, off_t, bus_addr_t,
int);
void agp_i810_post_gtt_entry(struct agp_i810_softc *, off_t);
void agp_i810_chipset_flush(struct agp_i810_softc *);
void agp_i810_reset(struct agp_i810_softc *);