1/* $OpenBSD: i82093var.h,v 1.13 2024/10/22 21:50:02 jsg Exp $ */
2/* $NetBSD: i82093var.h,v 1.1 2003/02/26 21:26:10 fvdl 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#ifndef _MACHINE_I82093VAR_H_
36#define _MACHINE_I82093VAR_H_
37
38#include <machine/apicvar.h>
39
40struct ioapic_pin {
41 struct intrhand *ip_handler;
42 struct ioapic_pin *ip_next; /* next pin on this vector */
43 struct mp_intr_map *ip_map;
44 int ip_vector; /* IDT vector */
45 int ip_type;
46 int ip_minlevel;
47 int ip_maxlevel;
48};
49
50struct ioapic_softc {
51 struct pic sc_pic;
52 struct ioapic_softc *sc_next;
53 int sc_apicid;
54 int sc_apic_vers;
55 int sc_apic_vecbase; /* global int base if ACPI */
56 int sc_apic_sz; /* apic size*/
57 int sc_flags;
58 paddr_t sc_pa; /* PA of ioapic */
59 volatile u_int32_t *sc_reg; /* KVA of ioapic addr */
60 volatile u_int32_t *sc_data; /* KVA of ioapic data */
61 struct ioapic_pin *sc_pins; /* sc_apic_sz entries */
62};
63
64/*
65 * MP: intr_handle_t is bitfielded.
66 * ih&0xff -> line number.
67 * ih&0x10000000 -> if 0, old-style isa irq; if 1, routed via ioapic.
68 * (ih&0xff0000)>>16 -> ioapic id.
69 * (ih&0x00ff00)>>8 -> ioapic line.
70 */
71
72#define APIC_INT_VIA_APIC 0x10000000
73#define APIC_INT_VIA_MSG 0x20000000
74#define APIC_INT_APIC_MASK 0x00ff0000
75#define APIC_INT_APIC_SHIFT 16
76#define APIC_INT_PIN_MASK 0x0000ff00
77#define APIC_INT_PIN_SHIFT 8
78#define APIC_INT_LINE_MASK 0x000000ff
79
80#define APIC_IRQ_APIC(x) ((x & APIC_INT_APIC_MASK) >> APIC_INT_APIC_SHIFT)
81#define APIC_IRQ_PIN(x) ((x & APIC_INT_PIN_MASK) >> APIC_INT_PIN_SHIFT)
82
83void *apic_intr_establish(int, int, int, int (*)(void *), void *,
84 const char *);
85void apic_intr_disestablish(void *);
86
87void ioapic_print_redir(struct ioapic_softc *, char *, int);
88struct ioapic_softc *ioapic_find(int);
89struct ioapic_softc *ioapic_find_bybase(int);
90
91void ioapic_enable(void);
92
93extern int ioapic_bsp_id;
94extern int nioapics;
95extern struct ioapic_softc *ioapics;
96extern u_int16_t ioapic_id_map;
97extern u_int8_t ioapic_id_remap[];
98
99#endif /* !_MACHINE_I82093VAR_H_ */