/
globaldata.h
135 lines (119 loc) · 4.31 KB
/
globaldata.h
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
122
123
124
125
126
127
128
129
130
131
132
133
134
135
/*
* GLOBALDATA.H
*/
/*
* Copyright (c) 2003 Matthew Dillon <dillon@backplane.com>
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $DragonFly: src/lib/libcaps/globaldata.h,v 1.9 2004/09/21 18:40:30 joerg Exp $
*/
#ifndef _LIBCAPS_GLOBALDATA_H_
#define _LIBCAPS_GLOBALDATA_H_
#ifndef _LIBCAPS_THREAD_H_
#include "thread.h"
#endif
#ifndef _SYS_THREAD_H_
#include <sys/thread.h>
#endif
#ifndef _SYS_UPCALL_H_
#include <sys/upcall.h>
#endif
#ifndef _LIBCAPS_SLABALLOC_H_
#include "slaballoc.h"
#endif
#ifndef _ASSERT_H_
#include <assert.h>
#endif
#ifndef _SYS_QUEUE_H_
#include <sys/queue.h>
#endif
#ifndef _MACHINE_LOCK_H_
#include <machine/lock.h>
#endif
struct globaldata;
typedef struct globaldata *globaldata_t;
#include "md_globaldata.h"
extern int smp_active;
extern int ncpus;
extern int hz;
extern u_int32_t stopped_cpus;
extern char *panicstr;
struct globaldata {
struct globaldata *gd_self; /* self pointer */
struct upcall gd_upcall; /* upcall for this cpu */
int gd_upcid; /* upcall id */
int gd_pid; /* user pid for rfork'd cpu */
int gd_tdfreecount;
TAILQ_HEAD(,thread) gd_tdallq; /* all threads */
TAILQ_HEAD(,thread) gd_tdfreeq; /* new thread cache */
TAILQ_HEAD(,thread) gd_tdrunq[32]; /* runnable threads */
__uint32_t gd_runqmask; /* which queues? */
__uint32_t gd_cpuid;
cpumask_t gd_cpumask; /* mask = 1<<cpuid */
cpumask_t gd_other_cpus;
int gd_intr_nesting_level;
struct thread gd_idlethread;
SLGlobalData gd_slab; /* slab allocator */
int gd_num_threads; /* Number of threads */
int gd_sys_threads; /* Number of threads */
struct lwkt_ipiq *gd_ipiq;
lwkt_tokref_t gd_tokreqbase; /* requests from other cpus */
struct lwkt_ipiq gd_cpusyncq; /* ipiq for cpu synchro */
};
#define gd_reqflags gd_upcall.upc_pending
#define gd_curthread gd_upcall.upc_uthread
#define RQB_IPIQ 0
#define RQB_INTPEND 1
#define RQB_AST_OWEUPC 2
#define RQB_AST_SIGNAL 3
#define RQB_AST_USER_RESCHED 4
#define RQB_AST_LWKT_RESCHED 5
#define RQB_AST_UPCALL 6
#define RQF_IPIQ (1 << RQB_IPIQ)
#define RQF_INTPEND (1 << RQB_INTPEND)
#define RQF_AST_OWEUPC (1 << RQB_AST_OWEUPC)
#define RQF_AST_SIGNAL (1 << RQB_AST_SIGNAL)
#define RQF_AST_USER_RESCHED (1 << RQB_AST_USER_RESCHED)
#define RQF_AST_LWKT_RESCHED (1 << RQB_AST_LWKT_RESCHED)
#define RQF_AST_UPCALL (1 << RQB_AST_UPCALL)
#define RQF_AST_MASK (RQF_AST_OWEUPC|RQF_AST_SIGNAL|\
RQF_AST_USER_RESCHED|RQF_AST_LWKT_RESCHED|\
RQF_AST_UPCALL)
#define RQF_IDLECHECK_MASK (RQF_IPIQ|RQF_INTPEND)
#define KASSERT(exp, printargs) \
do { if (!(exp)) { panic printargs; } } while(0)
#define KKASSERT(exp) assert(exp)
#define MAXVCPU 32
#define curthread (mycpu->gd_curthread)
extern cpumask_t smp_active_mask;
extern struct globaldata *globaldata_find(int cpu);
void globaldata_init(struct thread *td);
void splz(void);
int need_lwkt_resched(void);
void cpu_halt(void);
void cpu_send_ipiq(int dcpu);
void mi_gdinit1(globaldata_t gd, int cpuid);
void mi_gdinit2(globaldata_t gd);
__dead2 void panic(const char *, ...);
#endif