1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
/* $OpenBSD: i82489var.h,v 1.3 2006/03/29 15:02:27 mickey Exp $ */
/* $NetBSD: i82489var.h,v 1.1.2.2 2000/02/21 18:46:14 sommerfeld Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Frank van der Linden.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _I386_I82489VAR_H_
#define _I386_I82489VAR_H_
static __inline__ u_int32_t i82489_readreg(int);
static __inline__ void i82489_writereg(int, u_int32_t);
#ifdef _KERNEL
extern volatile u_int32_t local_apic[];
#endif
static __inline__ u_int32_t
i82489_readreg(reg)
int reg;
{
return *((volatile u_int32_t *)(((volatile u_int8_t *)local_apic)
+ reg));
}
static __inline__ void
i82489_writereg(reg, val)
int reg;
u_int32_t val;
{
*((volatile u_int32_t *)(((volatile u_int8_t *)local_apic) + reg)) =
val;
/*
* intel xeon errata p53:
* write to a lapic register sometimes may appear to have not occured
* workaround:
* follow write with a read [from id register]
*/
val = *((volatile u_int32_t *)(((volatile u_int8_t *)local_apic) +
LAPIC_ID));
}
/*
* "spurious interrupt vector"; vector used by interrupt which was
* aborted because the CPU masked it after it happened but before it
* was delivered.. "Oh, sorry, i caught you at a bad time".
* Low-order 4 bits must be all ones.
*/
extern void i386_spurious(void);
extern void Xintrspurious(void);
#define LAPIC_SPURIOUS_VECTOR 0xef
/*
* Vector used for inter-processor interrupts.
*/
extern void Xintripi(void);
#define LAPIC_IPI_VECTOR IPL_IPI
/*
* Vector used for local apic timer interrupts.
*/
extern void Xintrltimer(void);
#define LAPIC_TIMER_VECTOR IPL_CLOCK
/*
* Vectors to be used for self-soft-interrupts.
*/
#define LAPIC_SOFTCLOCK_VECTOR IPL_SOFTCLOCK
#define LAPIC_SOFTNET_VECTOR IPL_SOFTNET
#define LAPIC_SOFTTTY_VECTOR IPL_SOFTTTY
extern void Xintrsoftclock(void);
extern void Xintrsoftnet(void);
extern void Xintrsofttty(void);
extern void (*apichandler[])(void);
struct cpu_info;
extern void lapic_boot_init(paddr_t);
extern void lapic_initclocks(void);
extern void lapic_set_lvt(void);
extern void lapic_set_softvectors(void);
extern void lapic_enable(void);
extern void lapic_calibrate_timer(struct cpu_info *);
#endif
|
