1 /*- 2 * Copyright (c) 2000 Doug Rabson 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #ifndef _PCI_AGPREG_H_ 30 #define _PCI_AGPREG_H_ 31 32 /* 33 * Offsets for various AGP configuration registers. 34 */ 35 #define AGP_APBASE 0x10 36 #define AGP_CAPPTR 0x34 37 38 /* 39 * Offsets from the AGP Capability pointer. 40 */ 41 #define AGP_CAPID 0x0 42 #define AGP_CAPID_GET_MAJOR(x) (((x) & 0x00f00000U) >> 20) 43 #define AGP_CAPID_GET_MINOR(x) (((x) & 0x000f0000U) >> 16) 44 #define AGP_CAPID_GET_NEXT_PTR(x) (((x) & 0x0000ff00U) >> 8) 45 #define AGP_CAPID_GET_CAP_ID(x) (((x) & 0x000000ffU) >> 0) 46 47 #define AGP_STATUS 0x4 48 #define AGP_COMMAND 0x8 49 50 /* 51 * Config offsets for Intel AGP chipsets. 52 */ 53 #define AGP_INTEL_NBXCFG 0x50 54 #define AGP_INTEL_ERRSTS 0x91 55 #define AGP_INTEL_AGPCTRL 0xb0 56 #define AGP_INTEL_APSIZE 0xb4 57 #define AGP_INTEL_ATTBASE 0xb8 58 59 /* 60 * Config offsets for VIA AGP chipsets. 61 */ 62 #define AGP_VIA_GARTCTRL 0x80 63 #define AGP_VIA_APSIZE 0x84 64 #define AGP_VIA_ATTBASE 0x88 65 66 /* 67 * Config offsets for SiS AGP chipsets. 68 */ 69 #define AGP_SIS_ATTBASE 0x90 70 #define AGP_SIS_WINCTRL 0x94 71 #define AGP_SIS_TLBCTRL 0x97 72 #define AGP_SIS_TLBFLUSH 0x98 73 74 /* 75 * Config offsets for Ali AGP chipsets. 76 */ 77 #define AGP_ALI_AGPCTRL 0xb8 78 #define AGP_ALI_ATTBASE 0xbc 79 #define AGP_ALI_TLBCTRL 0xc0 80 81 /* 82 * Config offsets for the AMD 751 chipset. 83 */ 84 #define AGP_AMD751_REGISTERS 0x14 85 #define AGP_AMD751_APCTRL 0xac 86 #define AGP_AMD751_MODECTRL 0xb0 87 #define AGP_AMD751_MODECTRL_SYNEN 0x80 88 #define AGP_AMD751_MODECTRL2 0xb2 89 #define AGP_AMD751_MODECTRL2_G1LM 0x01 90 #define AGP_AMD751_MODECTRL2_GPDCE 0x02 91 #define AGP_AMD751_MODECTRL2_NGSE 0x08 92 93 /* 94 * Memory mapped register offsets for AMD 751 chipset. 95 */ 96 #define AGP_AMD751_CAPS 0x00 97 #define AGP_AMD751_CAPS_EHI 0x0800 98 #define AGP_AMD751_CAPS_P2P 0x0400 99 #define AGP_AMD751_CAPS_MPC 0x0200 100 #define AGP_AMD751_CAPS_VBE 0x0100 101 #define AGP_AMD751_CAPS_REV 0x00ff 102 #define AGP_AMD751_STATUS 0x02 103 #define AGP_AMD751_STATUS_P2PS 0x0800 104 #define AGP_AMD751_STATUS_GCS 0x0400 105 #define AGP_AMD751_STATUS_MPS 0x0200 106 #define AGP_AMD751_STATUS_VBES 0x0100 107 #define AGP_AMD751_STATUS_P2PE 0x0008 108 #define AGP_AMD751_STATUS_GCE 0x0004 109 #define AGP_AMD751_STATUS_VBEE 0x0001 110 #define AGP_AMD751_ATTBASE 0x04 111 #define AGP_AMD751_TLBCTRL 0x0c 112 113 114 #endif /* !_PCI_AGPREG_H_ */ 115