i82093reg.h revision 1.3 
1/*	$OpenBSD: i82093reg.h,v 1.3 2004/06/23 17:14:31 niklas 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 * 3. All advertising materials mentioning features or use of this software
22 *    must display the following acknowledgement:
23 *        This product includes software developed by the NetBSD
24 *        Foundation, Inc. and its contributors.
25 * 4. Neither the name of The NetBSD Foundation nor the names of its
26 *    contributors may be used to endorse or promote products derived
27 *    from this software without specific prior written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
30 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
31 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
32 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
33 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
34 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
35 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
36 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
37 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
39 * POSSIBILITY OF SUCH DAMAGE.
40 */
41
42/*
43 * Typically, the first apic lives here.
44 */
45#define IOAPIC_BASE_DEFAULT	0xfec00000
46
47/*
48 * Memory-space registers.
49 */
50
51/*
52 * The externally visible registers are all 32 bits wide;
53 * store the register number of interest in IOAPIC_REG, and store/fetch
54 * the real value in IOAPIC_DATA.
55 */
56#define	IOAPIC_REG		0x0000
57#define IOAPIC_DATA		0x0010
58
59/*
60 * Internal I/O APIC registers.
61 */
62
63#define IOAPIC_ID		0x00
64
65#define 	IOAPIC_ID_SHIFT		24
66#define		IOAPIC_ID_MASK		0x0f000000
67#define		IOAPIC_ID_MAX		\
68    ((IOAPIC_ID_MASK >> IOAPIC_ID_SHIFT) + 1)
69
70/* Version, and maximum interrupt pin number. */
71
72#define IOAPIC_VER		0x01
73
74#define		IOAPIC_VER_SHIFT		0
75#define		IOAPIC_VER_MASK			0x000000ff
76
77#define		IOAPIC_MAX_SHIFT	       	16
78#define		IOAPIC_MAX_MASK	       	0x00ff0000
79
80/*
81 * Arbitration ID.  Same format as IOAPIC_ID register.
82 */
83#define IOAPIC_ARB		0x02
84
85/*
86 * Redirection table registers.
87 */
88
89#define IOAPIC_REDHI(pin)	(0x11 + ((pin)<<1))
90#define IOAPIC_REDLO(pin)	(0x10 + ((pin)<<1))
91
92#define IOAPIC_REDHI_DEST_SHIFT		24	   /* destination. */
93#define IOAPIC_REDHI_DEST_MASK		0xff000000
94
95#define IOAPIC_REDLO_MASK		0x00010000 /* 0=enabled; 1=masked */
96
97#define IOAPIC_REDLO_LEVEL		0x00008000 /* 0=edge, 1=level */
98#define IOAPIC_REDLO_RIRR		0x00004000 /* remote IRR; read only */
99#define IOAPIC_REDLO_ACTLO		0x00002000 /* 0=act. hi; 1=act. lo */
100#define IOAPIC_REDLO_DELSTS		0x00001000 /* 0=idle; 1=send pending */
101#define IOAPIC_REDLO_DSTMOD		0x00000800 /* 0=physical; 1=logical */
102
103#define IOAPIC_REDLO_DEL_MASK		0x00000700 /* del. mode mask */
104#define IOAPIC_REDLO_DEL_SHIFT		8
105
106#define IOAPIC_REDLO_DEL_FIXED		0
107#define IOAPIC_REDLO_DEL_LOPRI		1
108#define IOAPIC_REDLO_DEL_SMI		2
109#define IOAPIC_REDLO_DEL_NMI		4
110#define IOAPIC_REDLO_DEL_INIT		5
111#define IOAPIC_REDLO_DEL_EXTINT		7
112
113#define IOAPIC_REDLO_VECTOR_MASK	0x000000ff /* delivery vector */
114
115#define IMCR_ADDR		0x22
116#define IMCR_DATA		0x23
117
118#define IMCR_REGISTER		0x70
119#define		IMCR_PIC	0x00
120#define 	IMCR_APIC	0x01
121
122#define ioapic_asm_ack(num) \
123    movl	$0,_C_LABEL(local_apic) + LAPIC_EOI
124