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Diffstat (limited to 'cddl/contrib/opensolaris/uts/common/sys/cpupart.h')
| -rw-r--r-- | cddl/contrib/opensolaris/uts/common/sys/cpupart.h | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/cddl/contrib/opensolaris/uts/common/sys/cpupart.h b/cddl/contrib/opensolaris/uts/common/sys/cpupart.h new file mode 100644 index 0000000..b9e0da4 --- /dev/null +++ b/cddl/contrib/opensolaris/uts/common/sys/cpupart.h @@ -0,0 +1,162 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _SYS_CPUPART_H +#define _SYS_CPUPART_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include <sys/types.h> +#include <sys/processor.h> +#include <sys/cpuvar.h> +#include <sys/disp.h> +#include <sys/pset.h> +#include <sys/lgrp.h> +#include <sys/lgrp_user.h> +#include <sys/pg.h> +#include <sys/bitset.h> +#include <sys/time.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#ifdef _KERNEL + +typedef int cpupartid_t; + +/* + * Special partition id. + */ +#define CP_DEFAULT 0 + +/* + * Flags for cpupart_list() + */ +#define CP_ALL 0 /* return all cpu partitions */ +#define CP_NONEMPTY 1 /* return only non-empty ones */ + +#if defined(_MACHDEP) +struct mach_cpupart { + cpuset_t mc_haltset; +}; + +extern struct mach_cpupart cp_default_mach; +#else +struct mach_cpupart; +#endif + +typedef struct cpupart { + disp_t cp_kp_queue; /* partition-wide kpreempt queue */ + cpupartid_t cp_id; /* partition ID */ + int cp_ncpus; /* number of online processors */ + struct cpupart *cp_next; /* next partition in list */ + struct cpupart *cp_prev; /* previous partition in list */ + struct cpu *cp_cpulist; /* processor list */ + struct kstat *cp_kstat; /* per-partition statistics */ + + /* + * cp_nrunnable and cp_nrunning are used to calculate load average. + */ + uint_t cp_nrunnable; /* current # of runnable threads */ + uint_t cp_nrunning; /* current # of running threads */ + + /* + * cp_updates, cp_nrunnable_cum, cp_nwaiting_cum, and cp_hp_avenrun + * are used to generate kstat information on an as-needed basis. + */ + uint64_t cp_updates; /* number of statistics updates */ + uint64_t cp_nrunnable_cum; /* cum. # of runnable threads */ + uint64_t cp_nwaiting_cum; /* cum. # of waiting threads */ + + struct loadavg_s cp_loadavg; /* cpupart loadavg */ + + klgrpset_t cp_lgrpset; /* set of lgroups on which this */ + /* partition has cpus */ + lpl_t *cp_lgrploads; /* table of load averages for this */ + /* partition, indexed by lgrp ID */ + int cp_nlgrploads; /* size of cp_lgrploads table */ + uint64_t cp_hp_avenrun[3]; /* high-precision load average */ + uint_t cp_attr; /* bitmask of attributes */ + lgrp_gen_t cp_gen; /* generation number */ + lgrp_id_t cp_lgrp_hint; /* last home lgroup chosen */ + bitset_t cp_cmt_pgs; /* CMT PGs represented */ + + struct mach_cpupart *cp_mach; /* mach-specific */ +} cpupart_t; + +typedef struct cpupart_kstat { + kstat_named_t cpk_updates; /* number of updates */ + kstat_named_t cpk_runnable; /* cum # of runnable threads */ + kstat_named_t cpk_waiting; /* cum # waiting for I/O */ + kstat_named_t cpk_ncpus; /* current # of CPUs */ + kstat_named_t cpk_avenrun_1min; /* 1-minute load average */ + kstat_named_t cpk_avenrun_5min; /* 5-minute load average */ + kstat_named_t cpk_avenrun_15min; /* 15-minute load average */ +} cpupart_kstat_t; + +/* + * Macro to obtain the maximum run priority for the global queue associated + * with given cpu partition. + */ +#define CP_MAXRUNPRI(cp) ((cp)->cp_kp_queue.disp_maxrunpri) + +/* + * This macro is used to determine if the given thread must surrender + * CPU to higher priority runnable threads on one of its dispatch queues. + * This should really be defined in <sys/disp.h> but it is not because + * including <sys/cpupart.h> there would cause recursive includes. + */ +#define DISP_MUST_SURRENDER(t) \ + ((DISP_MAXRUNPRI(t) > DISP_PRIO(t)) || \ + (CP_MAXRUNPRI(t->t_cpupart) > DISP_PRIO(t))) + +extern cpupart_t cp_default; +extern cpupart_t *cp_list_head; +extern uint_t cp_numparts; +extern uint_t cp_numparts_nonempty; + +extern void cpupart_initialize_default(); +extern cpupart_t *cpupart_find(psetid_t); +extern int cpupart_create(psetid_t *); +extern int cpupart_destroy(psetid_t); +extern psetid_t cpupart_query_cpu(cpu_t *); +extern int cpupart_attach_cpu(psetid_t, cpu_t *, int); +extern int cpupart_get_cpus(psetid_t *, processorid_t *, uint_t *); +extern int cpupart_bind_thread(kthread_id_t, psetid_t, int, void *, + void *); +extern void cpupart_kpqalloc(pri_t); +extern int cpupart_get_loadavg(psetid_t, int *, int); +extern uint_t cpupart_list(psetid_t *, uint_t, int); +extern int cpupart_setattr(psetid_t, uint_t); +extern int cpupart_getattr(psetid_t, uint_t *); + +#endif /* _KERNEL */ + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_CPUPART_H */ |
