lapic timer: Add necessary bits for lapic timer interrupt delivery
[dragonfly.git] / sys / sys / globaldata.h
CommitLineData
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1/*
2 * Copyright (c) 2003,2004 The DragonFly Project. All rights reserved.
3 *
4 * This code is derived from software contributed to The DragonFly Project
5 * by Matthew Dillon <dillon@backplane.com>
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
16 * distribution.
17 * 3. Neither the name of The DragonFly Project nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific, prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
85100692 34 * Copyright (c) Peter Wemm <peter@netplex.com.au> All rights reserved.
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35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 *
45 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
46 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
47 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
48 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
49 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
50 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
51 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
53 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * SUCH DAMAGE.
56 *
57 * $FreeBSD: src/sys/i386/include/globaldata.h,v 1.11.2.1 2000/05/16 06:58:10 dillon Exp $
c070746a 58 * $DragonFly: src/sys/sys/globaldata.h,v 1.49 2008/06/02 16:54:20 dillon Exp $
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59 */
60
61#ifndef _SYS_GLOBALDATA_H_
62#define _SYS_GLOBALDATA_H_
63
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64#if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
65
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66#ifndef _SYS_STDINT_H_
67#include <sys/stdint.h> /* __int types */
68#endif
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69#ifndef _SYS_TIME_H_
70#include <sys/time.h> /* struct timeval */
71#endif
72#ifndef _SYS_VMMETER_H_
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73#include <sys/vmmeter.h> /* struct vmmeter */
74#endif
75#ifndef _SYS_THREAD_H_
76#include <sys/thread.h> /* struct thread */
77#endif
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78#ifndef _SYS_SLABALLOC_H_
79#include <sys/slaballoc.h> /* SLGlobalData */
80#endif
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81#ifndef _SYS_SYSTIMER_H_
82#include <sys/systimer.h> /* fine-grained system timers */
83#endif
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84#ifndef _SYS_NCHSTATS_H_
85#include <sys/nchstats.h>
86#endif
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87#ifndef _SYS_SYSID_H_
88#include <sys/sysid.h> /* sysid_t */
89#endif
96728c05 90
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91/*
92 * This structure maps out the global data that needs to be kept on a
93 * per-cpu basis. genassym uses this to generate offsets for the assembler
94 * code. The machine-dependant portions of this file can be found in
95 * <machine/globaldata.h>, but only MD code should retrieve it.
96 *
97 * The SMP parts are setup in pmap.c and locore.s for the BSP, and
98 * mp_machdep.c sets up the data for the AP's to "see" when they awake.
99 * The reason for doing it via a struct is so that an array of pointers
100 * to each CPU's data can be set up for things like "check curproc on all
101 * other processors"
102 *
103 * NOTE! this structure needs to remain compatible between module accessors
104 * and the kernel, so we can't throw in lots of #ifdef's.
ef0fdad1 105 *
235957ed 106 * gd_reqflags serves serveral purposes, but it is primarily an interrupt
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107 * rollup flag used by the task switcher and spl mechanisms to decide that
108 * further checks are necessary. Interrupts are typically managed on a
109 * per-processor basis at least until you leave a critical section, but
110 * may then be scheduled to other cpus.
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111 *
112 * gd_vme_avail and gd_vme_base cache free vm_map_entry structures for use
113 * in various vm_map related operations. gd_vme_avail is *NOT* a count of
114 * the number of structures in the cache but is instead a count of the number
115 * of unreserved structures in the cache. See vm_map_entry_reserve().
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116 */
117
df2244e3 118struct sysmsg;
fc17ad60 119struct tslpentry;
85100692 120struct privatespace;
a108bf71 121struct vm_map_entry;
bbb31c5d 122struct spinlock;
fc7d5181 123struct pipe;
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124
125struct globaldata {
126 struct privatespace *gd_prvspace; /* self-reference */
127 struct thread *gd_curthread;
c070746a 128 struct thread *gd_freetd; /* cache one free td */
05220613 129 __uint32_t gd_reqflags; /* (see note above) */
40aaf5fc 130 void *gd_unused00B;
0d62f4af 131 lwkt_queue gd_tdallq; /* all threads */
40aaf5fc 132 lwkt_queue gd_unused00C;
0d62f4af 133 lwkt_queue gd_tdrunq[32]; /* runnable threads */
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134 __uint32_t gd_runqmask; /* which queues? */
135 __uint32_t gd_cpuid;
fda1ad89 136 cpumask_t gd_cpumask; /* mask = 1<<cpuid */
3614fd91 137 cpumask_t gd_other_cpus; /* mask of 'other' cpus */
85100692 138 struct timeval gd_stattv;
46a3f46d 139 int gd_intr_nesting_level; /* (for interrupts) */
12e4aaff 140 struct vmmeter gd_cnt;
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141 struct lwkt_ipiq *gd_ipiq; /* array[ncpu] of ipiq's */
142 struct lwkt_ipiq gd_cpusyncq; /* ipiq for cpu synchro */
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143 short gd_unused01;
144 short gd_unused02;
145 struct thread gd_unused02B;
a2a5ad0d 146 struct thread gd_idlethread;
a108bf71 147 SLGlobalData gd_slab; /* slab allocator */
27e88a6e 148 int gd_trap_nesting_level; /* track traps */
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149 int gd_vme_avail; /* vm_map_entry reservation */
150 struct vm_map_entry *gd_vme_base; /* vm_map_entry reservation */
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151 struct systimerq gd_systimerq; /* per-cpu system timers */
152 int gd_syst_nest;
774fc796 153 sysclock_t gd_unused03;
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154 struct systimer gd_hardclock; /* scheduler periodic */
155 struct systimer gd_statclock; /* statistics periodic */
156 struct systimer gd_schedclock; /* scheduler periodic */
157 volatile __uint32_t gd_time_seconds; /* uptime in seconds */
158 volatile sysclock_t gd_cpuclock_base; /* cpuclock relative base */
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159
160 struct pipe *gd_pipeq; /* cache pipe structures */
24e51f36 161 struct nchstats *gd_nchstats; /* namecache effectiveness */
fc7d5181 162 int gd_pipeqcount; /* number of structures */
10aa77c0 163 sysid_t gd_sysid_alloc; /* allocate unique sysid */
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164
165 struct tslpque *gd_tsleep_hash; /* tsleep/wakeup support */
bbb31c5d 166 struct spinlock *gd_spinlock_rd; /* Shared spinlock held */
d666840a 167 int gd_spinlocks_wr; /* Exclusive spinlocks held */
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168 struct systimer *gd_systimer_inprog; /* in-progress systimer */
169 void *gd_reserved[12]; /* future fields */
ca8c26b7 170 /* extended by <machine/globaldata.h> */
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171};
172
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173typedef struct globaldata *globaldata_t;
174
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175#define RQB_IPIQ 0
176#define RQB_INTPEND 1
177#define RQB_AST_OWEUPC 2
178#define RQB_AST_SIGNAL 3
179#define RQB_AST_USER_RESCHED 4
180#define RQB_AST_LWKT_RESCHED 5
181#define RQB_AST_UPCALL 6
78ea5a2a 182#define RQB_TIMER 7
235957ed 183
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184#define RQF_IPIQ (1 << RQB_IPIQ)
185#define RQF_INTPEND (1 << RQB_INTPEND)
78ea5a2a 186#define RQF_TIMER (1 << RQB_TIMER)
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187#define RQF_AST_OWEUPC (1 << RQB_AST_OWEUPC)
188#define RQF_AST_SIGNAL (1 << RQB_AST_SIGNAL)
189#define RQF_AST_USER_RESCHED (1 << RQB_AST_USER_RESCHED)
190#define RQF_AST_LWKT_RESCHED (1 << RQB_AST_LWKT_RESCHED)
191#define RQF_AST_UPCALL (1 << RQB_AST_UPCALL)
192#define RQF_AST_MASK (RQF_AST_OWEUPC|RQF_AST_SIGNAL|\
193 RQF_AST_USER_RESCHED|RQF_AST_LWKT_RESCHED|\
194 RQF_AST_UPCALL)
78ea5a2a 195#define RQF_IDLECHECK_MASK (RQF_IPIQ|RQF_INTPEND|RQF_TIMER)
235957ed 196
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197#endif
198
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199#ifdef _KERNEL
200struct globaldata *globaldata_find(int cpu);
0cd275af 201int is_globaldata_space(vm_offset_t saddr, vm_offset_t eaddr);
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202#endif
203
85100692 204#endif