1/* $NetBSD: i82093var.h,v 1.16 2017/05/23 03:23:58 nonaka Exp $ */
2
3/*-
4 * Copyright (c) 2000 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by RedBack Networks Inc.
9 *
10 * Author: Bill Sommerfeld
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33
34#ifndef _X86_I82093VAR_H_
35#define _X86_I82093VAR_H_
36
37#include <sys/device.h>
38#include <machine/apicvar.h>
39
40struct ioapic_pin {
41 struct ioapic_pin *ip_next; /* next pin on this vector */
42 struct mp_intr_map *ip_map;
43 int ip_vector; /* IDT vector */
44 int ip_type;
45 struct cpu_info *ip_cpu; /* target CPU */
46};
47
48struct ioapic_softc {
49 device_t sc_dev;
50 struct pic sc_pic;
51 struct ioapic_softc *sc_next;
52 int sc_apic_vers;
53 int sc_apic_vecbase; /* global int base if ACPI */
54 int sc_apic_sz; /* apic size */
55 int sc_flags;
56 paddr_t sc_pa; /* PA of ioapic */
57 volatile uint32_t *sc_reg; /* KVA of ioapic addr */
58 volatile uint32_t *sc_data; /* KVA of ioapic data */
59 struct ioapic_pin *sc_pins; /* sc_apic_sz entries */
60};
61
62/*
63 * MP: intr_handle_t is bitfielded.
64 * ih&0xff -> legacy irq number.
65 * ih&0x10000000 -> if 0, old-style isa irq; if 1, routed via ioapic.
66 * (ih&0xff0000)>>16 -> ioapic id.
67 * (ih&0x00ff00)>>8 -> ioapic pin.
68 *
69 * MSI/MSI-X:
70 * (ih&0x000ff80000000000)>>43 -> MSI/MSI-X device id.
71 * (ih&0x000007ff00000000)>>32 -> MSI/MSI-X vector id in a device.
72 */
73#define MPSAFE_MASK 0x80000000ULL
74#define APIC_INT_VIA_APIC 0x10000000ULL
75#define APIC_INT_VIA_MSI 0x20000000ULL
76#define APIC_INT_APIC_MASK 0x00ff0000ULL
77#define APIC_INT_APIC_SHIFT 16
78#define APIC_INT_PIN_MASK 0x0000ff00ULL
79#define APIC_INT_PIN_SHIFT 8
80
81#define APIC_IRQ_APIC(x) (int)(((x) & APIC_INT_APIC_MASK) >> APIC_INT_APIC_SHIFT)
82#define APIC_IRQ_PIN(x) (int)(((x) & APIC_INT_PIN_MASK) >> APIC_INT_PIN_SHIFT)
83#define APIC_IRQ_ISLEGACY(x) (bool)(!((x) & APIC_INT_VIA_APIC))
84#define APIC_IRQ_LEGACY_IRQ(x) (int)((x) & 0xff)
85
86#define INT_VIA_MSI(x) (bool)(((x) & APIC_INT_VIA_MSI) != 0)
87
88#define MSI_INT_MSIX 0x1000000000000000ULL
89#define MSI_INT_DEV_MASK 0x000ff80000000000ULL
90#define MSI_INT_VEC_MASK 0x000007ff00000000ULL
91
92#define MSI_INT_IS_MSIX(x) (bool)((((x) & MSI_INT_MSIX) != 0))
93#define MSI_INT_MAKE_MSI(x) ((x) &= ~MSI_INT_MSIX)
94#define MSI_INT_MAKE_MSIX(x) ((x) |= MSI_INT_MSIX)
95#define MSI_INT_DEV(x) __SHIFTOUT((x), MSI_INT_DEV_MASK)
96#define MSI_INT_VEC(x) __SHIFTOUT((x), MSI_INT_VEC_MASK)
97
98void ioapic_print_redir(struct ioapic_softc *, const char *, int);
99void ioapic_format_redir(char *, const char *, int, uint32_t, uint32_t);
100struct ioapic_softc *ioapic_find(int);
101struct ioapic_softc *ioapic_find_bybase(int);
102
103void ioapic_enable(void);
104void ioapic_reenable(void);
105
106extern int nioapics;
107extern struct ioapic_softc *ioapics;
108
109#endif /* !_X86_I82093VAR_H_ */
110