1/*	$OpenBSD: i82093var.h,v 1.12 2024/05/22 05:51:49 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{
42	struct intrhand		*ip_handler;
43	struct ioapic_pin	*ip_next; /* next pin on this vector */
44	struct mp_intr_map 	*ip_map;
45	int			ip_vector; /* IDT vector */
46	int			ip_type;
47	int			ip_minlevel;
48	int			ip_maxlevel;
49};
50
51struct ioapic_softc {
52	struct pic		sc_pic;
53	struct ioapic_softc	*sc_next;
54	int			sc_apicid;
55	int			sc_apic_vers;
56	int			sc_apic_vecbase; /* global int base if ACPI */
57	int			sc_apic_sz;	/* apic size*/
58	int			sc_flags;
59	paddr_t			sc_pa;		/* PA of ioapic */
60	volatile u_int32_t	*sc_reg;	/* KVA of ioapic addr */
61	volatile u_int32_t	*sc_data;	/* KVA of ioapic data */
62	struct ioapic_pin	*sc_pins;	/* sc_apic_sz entries */
63};
64
65/*
66 * MP: intr_handle_t is bitfielded.
67 * ih&0xff -> line number.
68 * ih&0x10000000 -> if 0, old-style isa irq; if 1, routed via ioapic.
69 * (ih&0xff0000)>>16 -> ioapic id.
70 * (ih&0x00ff00)>>8 -> ioapic line.
71 */
72
73#define APIC_INT_VIA_APIC	0x10000000
74#define APIC_INT_VIA_MSG	0x20000000
75#define APIC_INT_APIC_MASK	0x00ff0000
76#define APIC_INT_APIC_SHIFT	16
77#define APIC_INT_PIN_MASK	0x0000ff00
78#define APIC_INT_PIN_SHIFT	8
79#define APIC_INT_LINE_MASK	0x000000ff
80
81#define APIC_IRQ_APIC(x) ((x & APIC_INT_APIC_MASK) >> APIC_INT_APIC_SHIFT)
82#define APIC_IRQ_PIN(x) ((x & APIC_INT_PIN_MASK) >> APIC_INT_PIN_SHIFT)
83
84void   *apic_intr_establish(int, int, int, int (*)(void *), void *,
85    const char *);
86void	apic_intr_disestablish(void *);
87
88void	ioapic_print_redir(struct ioapic_softc *, char *, int);
89struct ioapic_softc *ioapic_find(int);
90struct ioapic_softc *ioapic_find_bybase(int);
91
92void	ioapic_enable(void);
93
94extern int ioapic_bsp_id;
95extern int nioapics;
96extern struct ioapic_softc *ioapics;
97extern u_int16_t ioapic_id_map;
98extern u_int8_t ioapic_id_remap[];
99
100#endif /* !_MACHINE_I82093VAR_H_ */
101