Remove upc_{control,register} syscalls and everything that has to do with it.
[dragonfly.git] / sys / sys / globaldata.h
CommitLineData
8c10bfcf 1/*
54341a3b 2 * Copyright (c) 2003-2011 The DragonFly Project. All rights reserved.
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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.
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56 */
57
58#ifndef _SYS_GLOBALDATA_H_
59#define _SYS_GLOBALDATA_H_
60
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61#if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
62
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63#ifndef _SYS_STDINT_H_
64#include <sys/stdint.h> /* __int types */
65#endif
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66#ifndef _SYS_TIME_H_
67#include <sys/time.h> /* struct timeval */
68#endif
69#ifndef _SYS_VMMETER_H_
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70#include <sys/vmmeter.h> /* struct vmmeter */
71#endif
72#ifndef _SYS_THREAD_H_
73#include <sys/thread.h> /* struct thread */
74#endif
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75#ifndef _SYS_SLABALLOC_H_
76#include <sys/slaballoc.h> /* SLGlobalData */
77#endif
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78#ifndef _SYS_SYSTIMER_H_
79#include <sys/systimer.h> /* fine-grained system timers */
80#endif
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81#ifndef _SYS_NCHSTATS_H_
82#include <sys/nchstats.h>
83#endif
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84#ifndef _SYS_SYSID_H_
85#include <sys/sysid.h> /* sysid_t */
86#endif
96728c05 87
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88/*
89 * This structure maps out the global data that needs to be kept on a
90 * per-cpu basis. genassym uses this to generate offsets for the assembler
91 * code. The machine-dependant portions of this file can be found in
92 * <machine/globaldata.h>, but only MD code should retrieve it.
93 *
94 * The SMP parts are setup in pmap.c and locore.s for the BSP, and
95 * mp_machdep.c sets up the data for the AP's to "see" when they awake.
96 * The reason for doing it via a struct is so that an array of pointers
97 * to each CPU's data can be set up for things like "check curproc on all
98 * other processors"
99 *
100 * NOTE! this structure needs to remain compatible between module accessors
101 * and the kernel, so we can't throw in lots of #ifdef's.
ef0fdad1 102 *
235957ed 103 * gd_reqflags serves serveral purposes, but it is primarily an interrupt
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104 * rollup flag used by the task switcher and spl mechanisms to decide that
105 * further checks are necessary. Interrupts are typically managed on a
106 * per-processor basis at least until you leave a critical section, but
107 * may then be scheduled to other cpus.
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108 *
109 * gd_vme_avail and gd_vme_base cache free vm_map_entry structures for use
110 * in various vm_map related operations. gd_vme_avail is *NOT* a count of
111 * the number of structures in the cache but is instead a count of the number
112 * of unreserved structures in the cache. See vm_map_entry_reserve().
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113 */
114
df2244e3 115struct sysmsg;
fc17ad60 116struct tslpentry;
85100692 117struct privatespace;
a108bf71 118struct vm_map_entry;
bbb31c5d 119struct spinlock;
fc7d5181 120struct pipe;
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121
122struct globaldata {
123 struct privatespace *gd_prvspace; /* self-reference */
124 struct thread *gd_curthread;
c070746a 125 struct thread *gd_freetd; /* cache one free td */
05220613 126 __uint32_t gd_reqflags; /* (see note above) */
438acbcc 127 long gd_flags;
0d62f4af 128 lwkt_queue gd_tdallq; /* all threads */
f9235b6d 129 lwkt_queue gd_tdrunq; /* runnable threads */
05220613 130 __uint32_t gd_cpuid;
da23a592 131 cpumask_t gd_cpumask; /* mask = CPUMASK(cpuid) */
3614fd91 132 cpumask_t gd_other_cpus; /* mask of 'other' cpus */
85100692 133 struct timeval gd_stattv;
4a28fe22 134 int gd_intr_nesting_level; /* hard code, intrs, ipis */
12e4aaff 135 struct vmmeter gd_cnt;
b12defdc 136 cpumask_t gd_ipimask; /* pending ipis from cpus */
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137 struct lwkt_ipiq *gd_ipiq; /* array[ncpu] of ipiq's */
138 struct lwkt_ipiq gd_cpusyncq; /* ipiq for cpu synchro */
b12defdc 139 u_int gd_npoll; /* ipiq synchronization */
de4d4cb0 140 int gd_tdrunqcount;
52eedfb5 141 struct thread gd_unused02B;
a2a5ad0d 142 struct thread gd_idlethread;
a108bf71 143 SLGlobalData gd_slab; /* slab allocator */
27e88a6e 144 int gd_trap_nesting_level; /* track traps */
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145 int gd_vme_avail; /* vm_map_entry reservation */
146 struct vm_map_entry *gd_vme_base; /* vm_map_entry reservation */
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147 struct systimerq gd_systimerq; /* per-cpu system timers */
148 int gd_syst_nest;
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149 struct systimer gd_hardclock; /* scheduler periodic */
150 struct systimer gd_statclock; /* statistics periodic */
151 struct systimer gd_schedclock; /* scheduler periodic */
152 volatile __uint32_t gd_time_seconds; /* uptime in seconds */
153 volatile sysclock_t gd_cpuclock_base; /* cpuclock relative base */
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154
155 struct pipe *gd_pipeq; /* cache pipe structures */
24e51f36 156 struct nchstats *gd_nchstats; /* namecache effectiveness */
fc7d5181 157 int gd_pipeqcount; /* number of structures */
10aa77c0 158 sysid_t gd_sysid_alloc; /* allocate unique sysid */
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159
160 struct tslpque *gd_tsleep_hash; /* tsleep/wakeup support */
da0b0e8b 161 long gd_processing_ipiq;
0846e4ce 162 int gd_spinlocks; /* Exclusive spinlocks held */
bdfb4a94 163 struct systimer *gd_systimer_inprog; /* in-progress systimer */
b12a1521 164 int gd_timer_running;
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165 u_int gd_idle_repeat; /* repeated switches to idle */
166 int gd_ireserved[7];
cfaeae2a 167 const char *gd_infomsg; /* debugging */
b12defdc 168 struct lwkt_tokref gd_handoff; /* hand-off tokref */
b0da0c88 169 void *gd_delayed_wakeup[2];
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170 void *gd_sample_pc; /* sample program ctr/tr */
171 void *gd_preserved[5]; /* future fields */
ca8c26b7 172 /* extended by <machine/globaldata.h> */
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173};
174
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175typedef struct globaldata *globaldata_t;
176
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177#define RQB_IPIQ 0 /* 0001 */
178#define RQB_INTPEND 1 /* 0002 */
179#define RQB_AST_OWEUPC 2 /* 0004 */
180#define RQB_AST_SIGNAL 3 /* 0008 */
181#define RQB_AST_USER_RESCHED 4 /* 0010 */
182#define RQB_AST_LWKT_RESCHED 5 /* 0020 */
7adb15b6 183#define RQB_UNUSED6 6 /* 0040 */
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184#define RQB_TIMER 7 /* 0080 */
185#define RQB_RUNNING 8 /* 0100 */
186#define RQB_SPINNING 9 /* 0200 */
f2081646 187#define RQB_QUICKRET 10 /* 0400 */
235957ed 188
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189#define RQF_IPIQ (1 << RQB_IPIQ)
190#define RQF_INTPEND (1 << RQB_INTPEND)
78ea5a2a 191#define RQF_TIMER (1 << RQB_TIMER)
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192#define RQF_AST_OWEUPC (1 << RQB_AST_OWEUPC)
193#define RQF_AST_SIGNAL (1 << RQB_AST_SIGNAL)
194#define RQF_AST_USER_RESCHED (1 << RQB_AST_USER_RESCHED)
195#define RQF_AST_LWKT_RESCHED (1 << RQB_AST_LWKT_RESCHED)
f9235b6d 196#define RQF_RUNNING (1 << RQB_RUNNING)
b12defdc 197#define RQF_SPINNING (1 << RQB_SPINNING)
f2081646 198#define RQF_QUICKRET (1 << RQB_QUICKRET)
be71787b 199
0a3f9b47 200#define RQF_AST_MASK (RQF_AST_OWEUPC|RQF_AST_SIGNAL|\
7adb15b6 201 RQF_AST_USER_RESCHED|RQF_AST_LWKT_RESCHED)
78ea5a2a 202#define RQF_IDLECHECK_MASK (RQF_IPIQ|RQF_INTPEND|RQF_TIMER)
b12defdc 203#define RQF_IDLECHECK_WK_MASK (RQF_IDLECHECK_MASK|RQF_AST_LWKT_RESCHED)
235957ed 204
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205/*
206 * globaldata flags
207 */
208#define GDF_KPRINTF 0x0001 /* kprintf() reentrancy */
209
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210#endif
211
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212/*
213 * MANUAL DEBUG CODE FOR DEBUGGING LOCKUPS
214 */
215#ifdef _KERNEL
216
217#if 0
218
219#define DEBUG_PUSH_INFO(msg) \
220 const char *save_infomsg; \
221 save_infomsg = mycpu->gd_infomsg; \
222 mycpu->gd_infomsg = msg \
223
224#define DEBUG_POP_INFO() mycpu->gd_infomsg = save_infomsg
225
226#else
227
228#define DEBUG_PUSH_INFO(msg)
229#define DEBUG_POP_INFO()
230
231#endif
232
233#endif
234
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235#ifdef _KERNEL
236struct globaldata *globaldata_find(int cpu);
0cd275af 237int is_globaldata_space(vm_offset_t saddr, vm_offset_t eaddr);
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238#endif
239
85100692 240#endif