1 | /* $NetBSD: agpio.h,v 1.11 2015/09/06 06:01:02 dholland Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 2000 Doug Rabson |
5 | * All rights reserved. |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions |
9 | * are met: |
10 | * 1. Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
15 | * |
16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
17 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
20 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
21 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
22 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
23 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
24 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
25 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
26 | * SUCH DAMAGE. |
27 | * |
28 | * $FreeBSD: src/sys/sys/agpio.h,v 1.1 2000/06/09 16:04:30 dfr Exp $ |
29 | */ |
30 | |
31 | #ifndef _SYS_AGPIO_H_ |
32 | #define _SYS_AGPIO_H_ |
33 | |
34 | #include <sys/ioccom.h> |
35 | |
36 | /* |
37 | * The AGP gatt uses 4k pages irrespective of the host page size. |
38 | */ |
39 | #define AGP_PAGE_SIZE 4096 |
40 | #define AGP_PAGE_SHIFT 12 |
41 | |
42 | /* |
43 | * Macros to manipulate AGP mode words. |
44 | */ |
45 | #define AGP_MODE_GET_RQ(x) (((x) & 0xff000000U) >> 24) |
46 | #define AGP_MODE_GET_ARQSZ(x) (((x) & 0x0000e000U) >> 13) |
47 | #define AGP_MODE_GET_CAL(x) (((x) & 0x00001c00U) >> 10) |
48 | #define AGP_MODE_GET_SBA(x) (((x) & 0x00000200U) >> 9) |
49 | #define AGP_MODE_GET_AGP(x) (((x) & 0x00000100U) >> 8) |
50 | #define AGP_MODE_GET_4G(x) (((x) & 0x00000020U) >> 5) |
51 | #define AGP_MODE_GET_FW(x) (((x) & 0x00000010U) >> 4) |
52 | #define AGP_MODE_GET_MODE_3(x) (((x) & 0x00000008U) >> 3) |
53 | #define AGP_MODE_GET_RATE(x) ((x) & 0x00000007U) |
54 | #define AGP_MODE_SET_RQ(x,v) (((x) & ~0xff000000U) | ((v) << 24)) |
55 | #define AGP_MODE_SET_ARQSZ(x,v) (((x) & ~0x0000e000U) | ((v) << 13)) |
56 | #define AGP_MODE_SET_CAL(x,v) (((x) & ~0x00001c00U) | ((v) << 10)) |
57 | #define AGP_MODE_SET_SBA(x,v) (((x) & ~0x00000200U) | ((v) << 9)) |
58 | #define AGP_MODE_SET_AGP(x,v) (((x) & ~0x00000100U) | ((v) << 8)) |
59 | #define AGP_MODE_SET_4G(x,v) (((x) & ~0x00000020U) | ((v) << 5)) |
60 | #define AGP_MODE_SET_FW(x,v) (((x) & ~0x00000010U) | ((v) << 4)) |
61 | #define AGP_MODE_SET_MODE_3(x,v) (((x) & ~0x00000008U) | ((v) << 3)) |
62 | #define AGP_MODE_SET_RATE(x,v) (((x) & ~0x00000007U) | (v)) |
63 | #define AGP_MODE_V2_RATE_1x 0x00000001 |
64 | #define AGP_MODE_V2_RATE_2x 0x00000002 |
65 | #define AGP_MODE_V2_RATE_4x 0x00000004 |
66 | #define AGP_MODE_V3_RATE_4x 0x00000001 |
67 | #define AGP_MODE_V3_RATE_8x 0x00000002 |
68 | #define AGP_MODE_V3_RATE_RSVD 0x00000004 |
69 | |
70 | /* compat */ |
71 | #define AGP_MODE_RATE_1x AGP_MODE_V2_RATE_1x |
72 | #define AGP_MODE_RATE_2x AGP_MODE_V2_RATE_2x |
73 | #define AGP_MODE_RATE_4x AGP_MODE_V2_RATE_4x |
74 | |
75 | #define AGPIOC_BASE 'A' |
76 | #define AGPIOC_INFO _IOR (AGPIOC_BASE, 0, agp_info) |
77 | #define AGPIOC_ACQUIRE _IO (AGPIOC_BASE, 1) |
78 | #define AGPIOC_RELEASE _IO (AGPIOC_BASE, 2) |
79 | #define AGPIOC_SETUP _IOW (AGPIOC_BASE, 3, agp_setup) |
80 | #if 0 |
81 | #define AGPIOC_RESERVE _IOW (AGPIOC_BASE, 4, agp_region) |
82 | #define AGPIOC_PROTECT _IOW (AGPIOC_BASE, 5, agp_region) |
83 | #endif |
84 | #define AGPIOC_ALLOCATE _IOWR(AGPIOC_BASE, 6, agp_allocate) |
85 | #define AGPIOC_DEALLOCATE _IOW (AGPIOC_BASE, 7, int) |
86 | #define AGPIOC_BIND _IOW (AGPIOC_BASE, 8, agp_bind) |
87 | #define AGPIOC_UNBIND _IOW (AGPIOC_BASE, 9, agp_unbind) |
88 | |
89 | typedef struct _agp_version { |
90 | uint16_t major; |
91 | uint16_t minor; |
92 | } agp_version; |
93 | |
94 | typedef struct _agp_info { |
95 | agp_version version; /* version of the driver */ |
96 | uint32_t bridge_id; /* bridge vendor/device */ |
97 | uint32_t agp_mode; /* mode info of bridge */ |
98 | off_t aper_base; /* base of aperture */ |
99 | size_t aper_size; /* size of aperture */ |
100 | size_t pg_total; /* max pages (swap + system) */ |
101 | size_t pg_system; /* max pages (system) */ |
102 | size_t pg_used; /* current pages used */ |
103 | } agp_info; |
104 | |
105 | typedef struct _agp_setup { |
106 | uint32_t agp_mode; /* mode info of bridge */ |
107 | } agp_setup; |
108 | |
109 | #if 0 |
110 | /* |
111 | * The "prot" down below needs still a "sleep" flag somehow ... |
112 | */ |
113 | typedef struct _agp_segment { |
114 | off_t pg_start; /* starting page to populate */ |
115 | size_t pg_count; /* number of pages */ |
116 | int prot; /* prot flags for mmap */ |
117 | } agp_segment; |
118 | |
119 | typedef struct _agp_region { |
120 | pid_t pid; /* pid of process */ |
121 | size_t seg_count; /* number of segments */ |
122 | struct _agp_segment *seg_list; |
123 | } agp_region; |
124 | #endif |
125 | |
126 | typedef struct _agp_allocate { |
127 | int key; /* tag of allocation */ |
128 | size_t pg_count; /* number of pages */ |
129 | uint32_t type; /* 0 == normal, other devspec */ |
130 | uint32_t physical; /* device specific (some devices |
131 | * need a phys address of the |
132 | * actual page behind the gatt |
133 | * table) */ |
134 | } agp_allocate; |
135 | |
136 | typedef struct _agp_bind { |
137 | int key; /* tag of allocation */ |
138 | off_t pg_start; /* starting page to populate */ |
139 | } agp_bind; |
140 | |
141 | typedef struct _agp_unbind { |
142 | int key; /* tag of allocation */ |
143 | uint32_t priority; /* priority for paging out */ |
144 | } agp_unbind; |
145 | |
146 | #endif /* !_SYS_AGPIO_H_ */ |
147 | |