1/* $NetBSD: agp_i810var.h,v 1.6 2015/03/06 22:03:06 riastradh Exp $ */
2
3/*-
4 * Copyright (c) 2000 Doug Rabson
5 * Copyright (c) 2000 Ruslan Ermilov
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#include <sys/types.h>
31#include <sys/bus.h>
32
33#include <dev/pci/pcivar.h>
34
35#include <dev/pci/agpvar.h>
36
37struct agp_i810_softc {
38 struct pci_attach_args vga_pa; /* integrated graphics device args */
39 int chiptype; /* chipset family: i810, i830, &c. */
40 uint32_t stolen; /* pages of stolen graphics memory */
41
42 /* Memory-mapped I/O for integrated graphics device registers. */
43 bus_space_tag_t bst;
44 bus_space_handle_t bsh;
45 bus_size_t size;
46
47 /* Graphics translation table. */
48 bus_space_tag_t gtt_bst;
49 bus_space_handle_t gtt_bsh;
50 bus_size_t gtt_size;
51
52 /* Chipset flush page. */
53 bus_space_tag_t flush_bst;
54 bus_space_handle_t flush_bsh;
55 bus_addr_t flush_addr;
56
57 /* i810-only fields. */
58 struct agp_gatt *gatt; /* i810-only OS-allocated GTT */
59 uint32_t dcache_size; /* i810-only on-chip memory size */
60
61 /* XXX Kludge to work around broken X servers. */
62 pcireg_t pgtblctl;
63
64 /* XXX Vestige of unfinished powerhook? */
65 uint32_t pgtblctl_resume_hack;
66};
67
68extern struct agp_softc *agp_i810_sc;
69
70#define AGP_I810_GTT_VALID 0x01
71#define AGP_I810_GTT_I810_DCACHE 0x02 /* i810-only */
72#define AGP_I810_GTT_CACHED 0x06 /* >=i830 */
73
74int agp_i810_write_gtt_entry(struct agp_i810_softc *, off_t, bus_addr_t,
75 int);
76void agp_i810_post_gtt_entry(struct agp_i810_softc *, off_t);
77void agp_i810_chipset_flush(struct agp_i810_softc *);
78