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