i82093reg.h revision 1.2 
1/*	$OpenBSD: i82093reg.h,v 1.2 2004/06/13 21:49:16 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
57
58
59#define	IOAPIC_REG		0x0000
60#define IOAPIC_DATA		0x0010
61
62/*
63 * Internal I/O APIC registers.
64 */
65
66#define IOAPIC_ID		0x00
67
68#define 	IOAPIC_ID_SHIFT		24
69#define		IOAPIC_ID_MASK		0x0f000000
70
71/* Version, and maximum interrupt pin number. */
72
73#define IOAPIC_VER		0x01
74
75#define		IOAPIC_VER_SHIFT		0
76#define		IOAPIC_VER_MASK			0x000000ff
77
78#define		IOAPIC_MAX_SHIFT	       	16
79#define		IOAPIC_MAX_MASK	       	0x00ff0000
80
81/*
82 * Arbitration ID.  Same format as IOAPIC_ID register.
83 */
84#define IOAPIC_ARB		0x02
85
86/*
87 * Redirection table registers.
88 */
89
90#define IOAPIC_REDHI(pin)	(0x11 + ((pin)<<1))
91#define IOAPIC_REDLO(pin)	(0x10 + ((pin)<<1))
92
93#define IOAPIC_REDHI_DEST_SHIFT		24	   /* destination. */
94#define IOAPIC_REDHI_DEST_MASK		0xff000000
95
96#define IOAPIC_REDLO_MASK		0x00010000 /* 0=enabled; 1=masked */
97
98#define IOAPIC_REDLO_LEVEL		0x00008000 /* 0=edge, 1=level */
99#define IOAPIC_REDLO_RIRR		0x00004000 /* remote IRR; read only */
100#define IOAPIC_REDLO_ACTLO		0x00002000 /* 0=act. hi; 1=act. lo */
101#define IOAPIC_REDLO_DELSTS		0x00001000 /* 0=idle; 1=send pending */
102#define IOAPIC_REDLO_DSTMOD		0x00000800 /* 0=physical; 1=logical */
103
104#define IOAPIC_REDLO_DEL_MASK		0x00000700 /* del. mode mask */
105#define IOAPIC_REDLO_DEL_SHIFT		8
106
107#define IOAPIC_REDLO_DEL_FIXED		0
108#define IOAPIC_REDLO_DEL_LOPRI		1
109#define IOAPIC_REDLO_DEL_SMI		2
110#define IOAPIC_REDLO_DEL_NMI		4
111#define IOAPIC_REDLO_DEL_INIT		5
112#define IOAPIC_REDLO_DEL_EXTINT		7
113
114#define IOAPIC_REDLO_VECTOR_MASK	0x000000ff /* delivery vector */
115
116#define IMCR_ADDR		0x22
117#define IMCR_DATA		0x23
118
119#define IMCR_REGISTER		0x70
120#define		IMCR_PIC	0x00
121#define 	IMCR_APIC	0x01
122
123#define ioapic_asm_ack(num) \
124    movl	$0,_C_LABEL(local_apic) + LAPIC_EOI
125