1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include "lint.h"
28 #include <sys/types.h>
29 #include <sys/procset.h>
30 #include <sys/processor.h>
31 #include <sys/pset.h>
32 #include <sys/param.h>
33 #include <sys/loadavg.h>
34
35 int _pset(int, ...);
36
37 /* subcode wrappers for _pset system call */
38
39 int
pset_create(psetid_t * npset)40 pset_create(psetid_t *npset)
41 {
42 return (_pset(PSET_CREATE, npset));
43 }
44
45 int
pset_destroy(psetid_t pset)46 pset_destroy(psetid_t pset)
47 {
48 return (_pset(PSET_DESTROY, pset));
49 }
50
51 int
pset_assign(psetid_t pset,processorid_t cpu,psetid_t * opset)52 pset_assign(psetid_t pset, processorid_t cpu, psetid_t *opset)
53 {
54 return (_pset(PSET_ASSIGN, pset, cpu, opset));
55 }
56
57 int
pset_assign_forced(psetid_t pset,processorid_t cpu,psetid_t * opset)58 pset_assign_forced(psetid_t pset, processorid_t cpu, psetid_t *opset)
59 {
60 return (_pset(PSET_ASSIGN_FORCED, pset, cpu, opset));
61 }
62
63 int
pset_info(psetid_t pset,int * type,uint_t * numcpus,processorid_t * cpulist)64 pset_info(psetid_t pset, int *type, uint_t *numcpus, processorid_t *cpulist)
65 {
66 return (_pset(PSET_INFO, pset, type, numcpus, cpulist));
67 }
68
69 int
pset_bind(psetid_t pset,idtype_t idtype,id_t id,psetid_t * opset)70 pset_bind(psetid_t pset, idtype_t idtype, id_t id, psetid_t *opset)
71 {
72 return (_pset(PSET_BIND, pset, idtype, id, opset));
73 }
74
75 int
pset_bind_lwp(psetid_t pset,id_t id,pid_t pid,psetid_t * opset)76 pset_bind_lwp(psetid_t pset, id_t id, pid_t pid, psetid_t *opset)
77 {
78 return (_pset(PSET_BIND_LWP, pset, id, pid, opset));
79 }
80
81 /*
82 * Get the per-processor-set load average.
83 */
84 int
pset_getloadavg(psetid_t pset,double loadavg[],int nelem)85 pset_getloadavg(psetid_t pset, double loadavg[], int nelem)
86 {
87 int i, buf[LOADAVG_NSTATS];
88
89 if (nelem > LOADAVG_NSTATS)
90 nelem = LOADAVG_NSTATS;
91
92 if (_pset(PSET_GETLOADAVG, pset, buf, nelem) == -1)
93 return (-1);
94
95 for (i = 0; i < nelem; i++)
96 loadavg[i] = (double)buf[i] / FSCALE;
97
98 return (nelem);
99 }
100
101 int
pset_list(psetid_t * psetlist,uint_t * numpsets)102 pset_list(psetid_t *psetlist, uint_t *numpsets)
103 {
104 return (_pset(PSET_LIST, psetlist, numpsets));
105 }
106
107 int
pset_setattr(psetid_t pset,uint_t attr)108 pset_setattr(psetid_t pset, uint_t attr)
109 {
110 return (_pset(PSET_SETATTR, pset, attr));
111 }
112
113 int
pset_getattr(psetid_t pset,uint_t * attr)114 pset_getattr(psetid_t pset, uint_t *attr)
115 {
116 return (_pset(PSET_GETATTR, pset, attr));
117 }
118