| Commit | Line | Data |
|---|---|---|
| 8c10bfcf | 1 | /* |
| 54341a3b | 2 | * Copyright (c) 2003-2011 The DragonFly Project. All rights reserved. |
| 8c10bfcf MD |
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. |
| 85100692 MD |
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. | |
| 85100692 MD |
56 | */ |
| 57 | ||
| 58 | #ifndef _SYS_GLOBALDATA_H_ | |
| 59 | #define _SYS_GLOBALDATA_H_ | |
| 60 | ||
| a108bf71 MD |
61 | #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES) |
| 62 | ||
| 05220613 MD |
63 | #ifndef _SYS_STDINT_H_ |
| 64 | #include <sys/stdint.h> /* __int types */ | |
| 65 | #endif | |
| 96728c05 MD |
66 | #ifndef _SYS_TIME_H_ |
| 67 | #include <sys/time.h> /* struct timeval */ | |
| 68 | #endif | |
| 69 | #ifndef _SYS_VMMETER_H_ | |
| a2a5ad0d MD |
70 | #include <sys/vmmeter.h> /* struct vmmeter */ |
| 71 | #endif | |
| 72 | #ifndef _SYS_THREAD_H_ | |
| 73 | #include <sys/thread.h> /* struct thread */ | |
| 74 | #endif | |
| a108bf71 MD |
75 | #ifndef _SYS_SLABALLOC_H_ |
| 76 | #include <sys/slaballoc.h> /* SLGlobalData */ | |
| 77 | #endif | |
| 88c4d2f6 MD |
78 | #ifndef _SYS_SYSTIMER_H_ |
| 79 | #include <sys/systimer.h> /* fine-grained system timers */ | |
| 80 | #endif | |
| 24e51f36 HP |
81 | #ifndef _SYS_NCHSTATS_H_ |
| 82 | #include <sys/nchstats.h> | |
| 83 | #endif | |
| 10aa77c0 MD |
84 | #ifndef _SYS_SYSID_H_ |
| 85 | #include <sys/sysid.h> /* sysid_t */ | |
| 86 | #endif | |
| 96728c05 | 87 | |
| 85100692 MD |
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 |
| ef0fdad1 MD |
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. | |
| a108bf71 MD |
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(). | |
| 85100692 MD |
113 | */ |
| 114 | ||
| df2244e3 | 115 | struct sysmsg; |
| fc17ad60 | 116 | struct tslpentry; |
| 85100692 | 117 | struct privatespace; |
| a108bf71 | 118 | struct vm_map_entry; |
| bbb31c5d | 119 | struct spinlock; |
| fc7d5181 | 120 | struct pipe; |
| 85100692 MD |
121 | |
| 122 | struct 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 */ |
| 3b6b7bd1 MD |
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 */ |
| a108bf71 MD |
145 | int gd_vme_avail; /* vm_map_entry reservation */ |
| 146 | struct vm_map_entry *gd_vme_base; /* vm_map_entry reservation */ | |
| 88c4d2f6 MD |
147 | struct systimerq gd_systimerq; /* per-cpu system timers */ |
| 148 | int gd_syst_nest; | |
| 88c4d2f6 MD |
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 */ | |
| fc7d5181 MD |
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 */ |
| fc17ad60 MD |
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; |
| be71787b MD |
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]; |
| 433c75c3 MD |
170 | void *gd_sample_pc; /* sample program ctr/tr */ |
| 171 | void *gd_preserved[5]; /* future fields */ | |
| ca8c26b7 | 172 | /* extended by <machine/globaldata.h> */ |
| 85100692 MD |
173 | }; |
| 174 | ||
| 7966cb69 MD |
175 | typedef struct globaldata *globaldata_t; |
| 176 | ||
| 85946b6c MD |
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 */ |
| 85946b6c MD |
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 | |
| 0a3f9b47 MD |
189 | #define RQF_IPIQ (1 << RQB_IPIQ) |
| 190 | #define RQF_INTPEND (1 << RQB_INTPEND) | |
| 78ea5a2a | 191 | #define RQF_TIMER (1 << RQB_TIMER) |
| 0a3f9b47 MD |
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 | |
| 438acbcc MD |
205 | /* |
| 206 | * globaldata flags | |
| 207 | */ | |
| 208 | #define GDF_KPRINTF 0x0001 /* kprintf() reentrancy */ | |
| 209 | ||
| a108bf71 MD |
210 | #endif |
| 211 | ||
| cfaeae2a MD |
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 | ||
| 12e4aaff MD |
235 | #ifdef _KERNEL |
| 236 | struct globaldata *globaldata_find(int cpu); | |
| 0cd275af | 237 | int is_globaldata_space(vm_offset_t saddr, vm_offset_t eaddr); |
| 12e4aaff MD |
238 | #endif |
| 239 | ||
| 85100692 | 240 | #endif |