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