1/* $OpenBSD: i82093reg.h,v 1.6 2022/12/08 01:25:45 guenther Exp $ */ 2/* $NetBSD: i82093reg.h,v 1.1.2.2 2000/02/21 18:54:07 sommerfeld Exp $ */ 3 4/*- 5 * Copyright (c) 2000 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by RedBack Networks Inc. 10 * 11 * Author: Bill Sommerfeld 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35/* 36 * Typically, the first apic lives here. 37 */ 38#define IOAPIC_BASE_DEFAULT 0xfec00000 39 40/* 41 * Memory-space registers. 42 */ 43 44/* 45 * The externally visible registers are all 32 bits wide; 46 * store the register number of interest in IOAPIC_REG, and store/fetch 47 * the real value in IOAPIC_DATA. 48 */ 49#define IOAPIC_REG 0x0000 50#define IOAPIC_DATA 0x0010 51 52/* 53 * Internal I/O APIC registers. 54 */ 55 56#define IOAPIC_ID 0x00 57 58#define IOAPIC_ID_SHIFT 24 59#define IOAPIC_ID_MASK 0x0f000000 60 61/* Version, and maximum interrupt pin number. */ 62 63#define IOAPIC_VER 0x01 64 65#define IOAPIC_VER_SHIFT 0 66#define IOAPIC_VER_MASK 0x000000ff 67 68#define IOAPIC_MAX_SHIFT 16 69#define IOAPIC_MAX_MASK 0x00ff0000 70 71/* 72 * Arbitration ID. Same format as IOAPIC_ID register. 73 */ 74#define IOAPIC_ARB 0x02 75 76/* 77 * Redirection table registers. 78 */ 79 80#define IOAPIC_REDHI(pin) (0x11 + ((pin)<<1)) 81#define IOAPIC_REDLO(pin) (0x10 + ((pin)<<1)) 82 83#define IOAPIC_REDHI_DEST_SHIFT 24 /* destination. */ 84#define IOAPIC_REDHI_DEST_MASK 0xff000000 85 86#define IOAPIC_REDLO_MASK 0x00010000 /* 0=enabled; 1=masked */ 87 88#define IOAPIC_REDLO_LEVEL 0x00008000 /* 0=edge, 1=level */ 89#define IOAPIC_REDLO_RIRR 0x00004000 /* remote IRR; read only */ 90#define IOAPIC_REDLO_ACTLO 0x00002000 /* 0=act. hi; 1=act. lo */ 91#define IOAPIC_REDLO_DELSTS 0x00001000 /* 0=idle; 1=send pending */ 92#define IOAPIC_REDLO_DSTMOD 0x00000800 /* 0=physical; 1=logical */ 93 94#define IOAPIC_REDLO_DEL_MASK 0x00000700 /* del. mode mask */ 95#define IOAPIC_REDLO_DEL_SHIFT 8 96 97#define IOAPIC_REDLO_DEL_FIXED 0 98#define IOAPIC_REDLO_DEL_LOPRI 1 99#define IOAPIC_REDLO_DEL_SMI 2 100#define IOAPIC_REDLO_DEL_NMI 4 101#define IOAPIC_REDLO_DEL_INIT 5 102#define IOAPIC_REDLO_DEL_EXTINT 7 103 104#define IOAPIC_REDLO_VECTOR_MASK 0x000000ff /* delivery vector */ 105 106#define IMCR_ADDR 0x22 107#define IMCR_DATA 0x23 108 109#define IMCR_REGISTER 0x70 110#define IMCR_PIC 0x00 111#define IMCR_APIC 0x01 112 113#ifdef _KERNEL 114 115#define ioapic_asm_ack(num) \ 116 movl $0,local_apic + LAPIC_EOI 117 118#endif 119