1 /* 2 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6 /* 7 * Copyright (c) 2000 Doug Rabson 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 */ 32 33 #ifndef _SYS_AGPGART_H 34 #define _SYS_AGPGART_H 35 36 #pragma ident "%Z%%M% %I% %E% SMI" 37 38 #ifdef __cplusplus 39 extern "C" { 40 #endif 41 42 #define AGP_NORMAL 0 /* mapped to user land, no cache */ 43 44 typedef struct _agp_version { 45 uint16_t agpv_major; 46 uint16_t agpv_minor; 47 } agp_version_t; 48 49 50 typedef struct _agp_info { 51 agp_version_t agpi_version; 52 uint32_t agpi_devid; /* bridge vendor + device */ 53 uint32_t agpi_mode; /* mode of brdige */ 54 ulong_t agpi_aperbase; /* base of aperture */ 55 size_t agpi_apersize; /* aperture range size */ 56 uint32_t agpi_pgtotal; /* max number of pages in aperture */ 57 uint32_t agpi_pgsystem; /* same as pg_total */ 58 uint32_t agpi_pgused; /* NUMBER of currently used pages */ 59 } agp_info_t; 60 61 typedef struct _agp_setup { 62 uint32_t agps_mode; 63 } agp_setup_t; 64 65 typedef struct _agp_allocate { 66 int32_t agpa_key; 67 uint32_t agpa_pgcount; 68 uint32_t agpa_type; 69 uint32_t agpa_physical; /* for i810 only, private */ 70 } agp_allocate_t; 71 72 typedef struct _agp_bind { 73 int32_t agpb_key; 74 uint32_t agpb_pgstart; 75 } agp_bind_t; 76 77 typedef struct _agp_unbind { 78 int32_t agpu_key; 79 uint32_t agpu_pri; /* no use in solaris */ 80 } agp_unbind_t; 81 82 #define AGPIOC_BASE 'G' 83 #define AGPIOC_INFO _IOR(AGPIOC_BASE, 0, 100) 84 #define AGPIOC_ACQUIRE _IO(AGPIOC_BASE, 1) 85 #define AGPIOC_RELEASE _IO(AGPIOC_BASE, 2) 86 #define AGPIOC_SETUP _IOW(AGPIOC_BASE, 3, agp_setup_t) 87 #define AGPIOC_ALLOCATE _IOWR(AGPIOC_BASE, 4, agp_allocate_t) 88 #define AGPIOC_DEALLOCATE _IOW(AGPIOC_BASE, 5, int) 89 #define AGPIOC_BIND _IOW(AGPIOC_BASE, 6, agp_bind_t) 90 #define AGPIOC_UNBIND _IOW(AGPIOC_BASE, 7, agp_unbind_t) 91 92 /* AGP status register bits definition */ 93 #define AGPSTAT_RQ_MASK 0xff000000 /* target only */ 94 #define AGPSTAT_SBA (0x1 << 9) /* always 1 for 3.0 */ 95 #define AGPSTAT_OVER4G (0x1 << 5) 96 #define AGPSTAT_FW (0x1 << 4) 97 #define AGPSTAT_RATE_MASK 0x7 98 /* rate for 2.0 mode */ 99 #define AGP2_RATE_1X 0x1 100 #define AGP2_RATE_2X 0x2 101 #define AGP2_RATE_4X 0x4 102 /* AGP 3.0 only bits */ 103 #define AGPSTAT_ARQSZ_MASK (0x7 << 13) /* target only */ 104 #define AGPSTAT_CAL_MASK (0x7 << 10) 105 #define AGPSTAT_GART64B (0x1 << 7) /* target only */ 106 #define AGPSTAT_MODE3 (0x1 << 3) 107 /* Rate for 3.0 mode */ 108 #define AGP3_RATE_4X 0x1 109 #define AGP3_RATE_8X 0x2 110 111 /* AGP command register bits definition */ 112 #define AGPCMD_RQ_MASK 0xff000000 /* master only */ 113 #define AGPCMD_SBAEN (0x1 << 9) /* must be 1 for 3.0 */ 114 #define AGPCMD_AGPEN (0x1 << 8) 115 #define AGPCMD_OVER4GEN (0x1 << 5) 116 #define AGPCMD_FWEN (0x1 << 4) 117 #define AGPCMD_RATE_MASK 0x7 118 /* AGP 3.0 only bits */ 119 #define AGP3_CMD_ARQSZ_MASK (0x7 << 13) /* master only */ 120 #define AGP3_CMD_CAL_MASK (0x7 << 10) /* target only */ 121 #define AGP3_CMD_GART64BEN (0x1 << 7) /* target only */ 122 123 #define AGP_DEVICE "/dev/agpgart" 124 125 #ifdef __cplusplus 126 } 127 #endif 128 129 #endif /* _SYS_AGPGART_H */ 130