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
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/*
* Copyright © 2009 CNRS
* Copyright © 2009-2010 INRIA. All rights reserved.
* Copyright © 2009-2010 Université Bordeaux 1
* Copyright © 2011 Cisco Systems, Inc. All rights reserved.
* See COPYING in top-level directory.
*/
#include <private/autogen/config.h>
#include <sys/types.h>
#include <stdlib.h>
#include <inttypes.h>
#include <sys/param.h>
#include <pthread.h>
#ifdef HAVE_PTHREAD_NP_H
#include <pthread_np.h>
#endif
#ifdef HAVE_SYS_CPUSET_H
#include <sys/cpuset.h>
#endif
#include <hwloc.h>
#include <private/private.h>
#include <private/debug.h>
#ifdef HAVE_SYS_CPUSET_H
static void
hwloc_freebsd_bsd2hwloc(hwloc_bitmap_t hwloc_cpuset, const cpuset_t *cpuset)
{
unsigned cpu;
hwloc_bitmap_zero(hwloc_cpuset);
for (cpu = 0; cpu < CPU_SETSIZE; cpu++)
if (CPU_ISSET(cpu, cpuset))
hwloc_bitmap_set(hwloc_cpuset, cpu);
}
static void
hwloc_freebsd_hwloc2bsd(hwloc_const_bitmap_t hwloc_cpuset, cpuset_t *cpuset)
{
unsigned cpu;
CPU_ZERO(cpuset);
for (cpu = 0; cpu < CPU_SETSIZE; cpu++)
if (hwloc_bitmap_isset(hwloc_cpuset, cpu))
CPU_SET(cpu, cpuset);
}
static int
hwloc_freebsd_set_sth_affinity(hwloc_topology_t topology __hwloc_attribute_unused, cpulevel_t level, cpuwhich_t which, id_t id, hwloc_const_bitmap_t hwloc_cpuset, int flags __hwloc_attribute_unused)
{
cpuset_t cpuset;
hwloc_freebsd_hwloc2bsd(hwloc_cpuset, &cpuset);
if (cpuset_setaffinity(level, which, id, sizeof(cpuset), &cpuset))
return -1;
return 0;
}
static int
hwloc_freebsd_get_sth_affinity(hwloc_topology_t topology __hwloc_attribute_unused, cpulevel_t level, cpuwhich_t which, id_t id, hwloc_bitmap_t hwloc_cpuset, int flags __hwloc_attribute_unused)
{
cpuset_t cpuset;
if (cpuset_getaffinity(level, which, id, sizeof(cpuset), &cpuset))
return -1;
hwloc_freebsd_bsd2hwloc(hwloc_cpuset, &cpuset);
return 0;
}
static int
hwloc_freebsd_set_thisproc_cpubind(hwloc_topology_t topology, hwloc_const_bitmap_t hwloc_cpuset, int flags)
{
return hwloc_freebsd_set_sth_affinity(topology, CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, hwloc_cpuset, flags);
}
static int
hwloc_freebsd_get_thisproc_cpubind(hwloc_topology_t topology, hwloc_bitmap_t hwloc_cpuset, int flags)
{
return hwloc_freebsd_get_sth_affinity(topology, CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, hwloc_cpuset, flags);
}
static int
hwloc_freebsd_set_thisthread_cpubind(hwloc_topology_t topology, hwloc_const_bitmap_t hwloc_cpuset, int flags)
{
return hwloc_freebsd_set_sth_affinity(topology, CPU_LEVEL_WHICH, CPU_WHICH_TID, -1, hwloc_cpuset, flags);
}
static int
hwloc_freebsd_get_thisthread_cpubind(hwloc_topology_t topology, hwloc_bitmap_t hwloc_cpuset, int flags)
{
return hwloc_freebsd_get_sth_affinity(topology, CPU_LEVEL_WHICH, CPU_WHICH_TID, -1, hwloc_cpuset, flags);
}
static int
hwloc_freebsd_set_proc_cpubind(hwloc_topology_t topology, hwloc_pid_t pid, hwloc_const_bitmap_t hwloc_cpuset, int flags)
{
return hwloc_freebsd_set_sth_affinity(topology, CPU_LEVEL_WHICH, CPU_WHICH_PID, pid, hwloc_cpuset, flags);
}
static int
hwloc_freebsd_get_proc_cpubind(hwloc_topology_t topology, hwloc_pid_t pid, hwloc_bitmap_t hwloc_cpuset, int flags)
{
return hwloc_freebsd_get_sth_affinity(topology, CPU_LEVEL_WHICH, CPU_WHICH_PID, pid, hwloc_cpuset, flags);
}
#ifdef hwloc_thread_t
#if HAVE_DECL_PTHREAD_SETAFFINITY_NP
#pragma weak pthread_setaffinity_np
static int
hwloc_freebsd_set_thread_cpubind(hwloc_topology_t topology __hwloc_attribute_unused, hwloc_thread_t tid, hwloc_const_bitmap_t hwloc_cpuset, int flags __hwloc_attribute_unused)
{
int err;
cpuset_t cpuset;
if (!pthread_setaffinity_np) {
errno = ENOSYS;
return -1;
}
hwloc_freebsd_hwloc2bsd(hwloc_cpuset, &cpuset);
err = pthread_setaffinity_np(tid, sizeof(cpuset), &cpuset);
if (err) {
errno = err;
return -1;
}
return 0;
}
#endif
#if HAVE_DECL_PTHREAD_GETAFFINITY_NP
#pragma weak pthread_getaffinity_np
static int
hwloc_freebsd_get_thread_cpubind(hwloc_topology_t topology __hwloc_attribute_unused, hwloc_thread_t tid, hwloc_bitmap_t hwloc_cpuset, int flags __hwloc_attribute_unused)
{
int err;
cpuset_t cpuset;
if (!pthread_getaffinity_np) {
errno = ENOSYS;
return -1;
}
err = pthread_getaffinity_np(tid, sizeof(cpuset), &cpuset);
if (err) {
errno = err;
return -1;
}
hwloc_freebsd_bsd2hwloc(hwloc_cpuset, &cpuset);
return 0;
}
#endif
#endif
#endif
void
hwloc_look_freebsd(struct hwloc_topology *topology)
{
unsigned nbprocs = hwloc_fallback_nbprocessors(topology);
#ifdef HAVE__SC_LARGE_PAGESIZE
topology->levels[0][0]->attr->machine.huge_page_size_kB = sysconf(_SC_LARGE_PAGESIZE);
#endif
hwloc_set_freebsd_hooks(topology);
hwloc_look_x86(topology, nbprocs);
hwloc_setup_pu_level(topology, nbprocs);
hwloc_add_object_info(topology->levels[0][0], "Backend", "FreeBSD");
}
void
hwloc_set_freebsd_hooks(struct hwloc_topology *topology)
{
#ifdef HAVE_SYS_CPUSET_H
topology->set_thisproc_cpubind = hwloc_freebsd_set_thisproc_cpubind;
topology->get_thisproc_cpubind = hwloc_freebsd_get_thisproc_cpubind;
topology->set_thisthread_cpubind = hwloc_freebsd_set_thisthread_cpubind;
topology->get_thisthread_cpubind = hwloc_freebsd_get_thisthread_cpubind;
topology->set_proc_cpubind = hwloc_freebsd_set_proc_cpubind;
topology->get_proc_cpubind = hwloc_freebsd_get_proc_cpubind;
#ifdef hwloc_thread_t
#if HAVE_DECL_PTHREAD_SETAFFINITY_NP
topology->set_thread_cpubind = hwloc_freebsd_set_thread_cpubind;
#endif
#if HAVE_DECL_PTHREAD_GETAFFINITY_NP
topology->get_thread_cpubind = hwloc_freebsd_get_thread_cpubind;
#endif
#endif
#endif
/* TODO: get_last_cpu_location: find out ki_lastcpu */
}
|
