1 /* $OpenBSD: i82093var.h,v 1.5 2006/05/09 18:41:22 kettenis 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 * 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 #ifndef _I386_I82093VAR_H_
43 #define _I386_I82093VAR_H_
44
45 #include <machine/apicvar.h>
46
47 struct ioapic_pin
48 {
49 struct intrhand *ip_handler;
50 struct ioapic_pin *ip_next; /* next pin on this vector */
51 struct mp_intr_map *ip_map;
52 int ip_vector; /* IDT vector */
53 int ip_type;
54 int ip_minlevel;
55 int ip_maxlevel;
56 };
57
58 struct ioapic_softc {
59 struct device sc_dev; /* generic device glue */
60 struct ioapic_softc *sc_next;
61 int sc_apicid;
62 int sc_apic_vers;
63 int sc_apic_vecbase; /* global int base if ACPI */
64 int sc_apic_sz; /* apic size*/
65 int sc_flags;
66 paddr_t sc_pa; /* PA of ioapic */
67 volatile u_int32_t *sc_reg; /* KVA of ioapic addr */
68 volatile u_int32_t *sc_data; /* KVA of ioapic data */
69 struct ioapic_pin *sc_pins; /* sc_apic_sz entries */
70 };
71
72 /*
73 * MP: intr_handle_t is bitfielded.
74 * ih&0xff -> line number.
75 * ih&0x10000000 -> if 0, old-style isa irq; if 1, routed via ioapic.
76 * (ih&0xff0000)>>16 -> ioapic id.
77 * (ih&0x00ff00)>>8 -> ioapic line.
78 */
79
80 #define APIC_INT_VIA_APIC 0x10000000
81 #define APIC_INT_APIC_MASK 0x00ff0000
82 #define APIC_INT_APIC_SHIFT 16
83 #define APIC_INT_PIN_MASK 0x0000ff00
84 #define APIC_INT_PIN_SHIFT 8
85 #define APIC_INT_LINE_MASK 0x000000ff
86
87 #define APIC_IRQ_APIC(x) ((x & APIC_INT_APIC_MASK) >> APIC_INT_APIC_SHIFT)
88 #define APIC_IRQ_PIN(x) ((x & APIC_INT_PIN_MASK) >> APIC_INT_PIN_SHIFT)
89
90 /* I/O APIC ID remapping helper macros. */
91 #define IOAPIC_REMAP_MASK (IOAPIC_ID_MASK >> IOAPIC_ID_SHIFT)
92 #define IOAPIC_REMAP_FLAG ((IOAPIC_REMAP_MASK + 1) << 1)
93 #define IOAPIC_REMAP(old_id, new_id) \
94 (ioapic_id_remap[(old_id)] = IOAPIC_REMAP_FLAG | (new_id))
95 #define IOAPIC_REMAPPED(id) (ioapic_id_remap[(id)] & IOAPIC_REMAP_FLAG)
96 #define IOAPIC_REMAPPED_ID(id) \
97 (IOAPIC_REMAPPED(id) ? ioapic_id_remap[(id)] & IOAPIC_REMAP_MASK : (id))
98
99 void *apic_intr_establish(int, int, int, int (*)(void *), void *, char *);
100 void apic_intr_disestablish(void *);
101
102 void ioapic_print_redir(struct ioapic_softc *, char *, int);
103 void ioapic_format_redir(char *, char *, int, u_int32_t, u_int32_t);
104 struct ioapic_softc *ioapic_find(int);
105 struct ioapic_softc *ioapic_find_bybase(int);
106
107 void ioapic_enable(void);
108 void lapic_vectorset(void); /* XXX */
109
110 extern int ioapic_bsp_id;
111 extern int nioapics;
112 extern struct ioapic_softc *ioapics;
113 extern u_int16_t ioapic_id_map;
114 extern u_int8_t ioapic_id_remap[];
115
116 #endif /* !_I386_I82093VAR_H_ */