1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* 23*7c478bd9Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 25*7c478bd9Sstevel@tonic-gate */ 26*7c478bd9Sstevel@tonic-gate 27*7c478bd9Sstevel@tonic-gate #ifndef _SYS_CPUPART_H 28*7c478bd9Sstevel@tonic-gate #define _SYS_CPUPART_H 29*7c478bd9Sstevel@tonic-gate 30*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*7c478bd9Sstevel@tonic-gate 32*7c478bd9Sstevel@tonic-gate #include <sys/types.h> 33*7c478bd9Sstevel@tonic-gate #include <sys/processor.h> 34*7c478bd9Sstevel@tonic-gate #include <sys/cpuvar.h> 35*7c478bd9Sstevel@tonic-gate #include <sys/disp.h> 36*7c478bd9Sstevel@tonic-gate #include <sys/pset.h> 37*7c478bd9Sstevel@tonic-gate #include <sys/lgrp.h> 38*7c478bd9Sstevel@tonic-gate #include <sys/lgrp_user.h> 39*7c478bd9Sstevel@tonic-gate #include <sys/chip.h> 40*7c478bd9Sstevel@tonic-gate #include <sys/time.h> 41*7c478bd9Sstevel@tonic-gate 42*7c478bd9Sstevel@tonic-gate #ifdef __cplusplus 43*7c478bd9Sstevel@tonic-gate extern "C" { 44*7c478bd9Sstevel@tonic-gate #endif 45*7c478bd9Sstevel@tonic-gate 46*7c478bd9Sstevel@tonic-gate #ifdef _KERNEL 47*7c478bd9Sstevel@tonic-gate 48*7c478bd9Sstevel@tonic-gate typedef int cpupartid_t; 49*7c478bd9Sstevel@tonic-gate 50*7c478bd9Sstevel@tonic-gate /* 51*7c478bd9Sstevel@tonic-gate * Special partition id. 52*7c478bd9Sstevel@tonic-gate */ 53*7c478bd9Sstevel@tonic-gate #define CP_DEFAULT 0 54*7c478bd9Sstevel@tonic-gate 55*7c478bd9Sstevel@tonic-gate /* 56*7c478bd9Sstevel@tonic-gate * Flags for cpupart_list() 57*7c478bd9Sstevel@tonic-gate */ 58*7c478bd9Sstevel@tonic-gate #define CP_ALL 0 /* return all cpu partitions */ 59*7c478bd9Sstevel@tonic-gate #define CP_NONEMPTY 1 /* return only non-empty ones */ 60*7c478bd9Sstevel@tonic-gate 61*7c478bd9Sstevel@tonic-gate typedef struct cpupart { 62*7c478bd9Sstevel@tonic-gate disp_t cp_kp_queue; /* partition-wide kpreempt queue */ 63*7c478bd9Sstevel@tonic-gate cpupartid_t cp_id; /* partition ID */ 64*7c478bd9Sstevel@tonic-gate int cp_ncpus; /* number of online processors */ 65*7c478bd9Sstevel@tonic-gate struct cpupart *cp_next; /* next partition in list */ 66*7c478bd9Sstevel@tonic-gate struct cpupart *cp_prev; /* previous partition in list */ 67*7c478bd9Sstevel@tonic-gate struct cpu *cp_cpulist; /* processor list */ 68*7c478bd9Sstevel@tonic-gate struct kstat *cp_kstat; /* per-partition statistics */ 69*7c478bd9Sstevel@tonic-gate 70*7c478bd9Sstevel@tonic-gate /* 71*7c478bd9Sstevel@tonic-gate * cp_nrunnable and cp_nrunning are used to calculate load average. 72*7c478bd9Sstevel@tonic-gate */ 73*7c478bd9Sstevel@tonic-gate uint_t cp_nrunnable; /* current # of runnable threads */ 74*7c478bd9Sstevel@tonic-gate uint_t cp_nrunning; /* current # of running threads */ 75*7c478bd9Sstevel@tonic-gate 76*7c478bd9Sstevel@tonic-gate /* 77*7c478bd9Sstevel@tonic-gate * cp_updates, cp_nrunnable_cum, cp_nwaiting_cum, and cp_hp_avenrun 78*7c478bd9Sstevel@tonic-gate * are used to generate kstat information on an as-needed basis. 79*7c478bd9Sstevel@tonic-gate */ 80*7c478bd9Sstevel@tonic-gate uint64_t cp_updates; /* number of statistics updates */ 81*7c478bd9Sstevel@tonic-gate uint64_t cp_nrunnable_cum; /* cum. # of runnable threads */ 82*7c478bd9Sstevel@tonic-gate uint64_t cp_nwaiting_cum; /* cum. # of waiting threads */ 83*7c478bd9Sstevel@tonic-gate 84*7c478bd9Sstevel@tonic-gate struct loadavg_s cp_loadavg; /* cpupart loadavg */ 85*7c478bd9Sstevel@tonic-gate 86*7c478bd9Sstevel@tonic-gate klgrpset_t cp_lgrpset; /* set of lgroups on which this */ 87*7c478bd9Sstevel@tonic-gate /* partition has cpus */ 88*7c478bd9Sstevel@tonic-gate lpl_t *cp_lgrploads; /* table of load averages for this */ 89*7c478bd9Sstevel@tonic-gate /* partition, indexed by lgrp ID */ 90*7c478bd9Sstevel@tonic-gate int cp_nlgrploads; /* size of cp_lgrploads table */ 91*7c478bd9Sstevel@tonic-gate uint64_t cp_hp_avenrun[3]; /* high-precision load average */ 92*7c478bd9Sstevel@tonic-gate uint_t cp_attr; /* bitmask of attributes */ 93*7c478bd9Sstevel@tonic-gate lgrp_gen_t cp_gen; /* generation number */ 94*7c478bd9Sstevel@tonic-gate lgrp_id_t cp_lgrp_hint; /* last home lgroup chosen */ 95*7c478bd9Sstevel@tonic-gate #if defined(_MACHDEP) 96*7c478bd9Sstevel@tonic-gate /* 97*7c478bd9Sstevel@tonic-gate * These guarded members must reside at the end of the structure 98*7c478bd9Sstevel@tonic-gate */ 99*7c478bd9Sstevel@tonic-gate cpuset_t cp_haltset; /* bitmask of halted cpus */ 100*7c478bd9Sstevel@tonic-gate chip_set_t cp_chipset; /* set of chips spanned by this part */ 101*7c478bd9Sstevel@tonic-gate #endif /* _MACHDEP */ 102*7c478bd9Sstevel@tonic-gate } cpupart_t; 103*7c478bd9Sstevel@tonic-gate 104*7c478bd9Sstevel@tonic-gate typedef struct cpupart_kstat { 105*7c478bd9Sstevel@tonic-gate kstat_named_t cpk_updates; /* number of updates */ 106*7c478bd9Sstevel@tonic-gate kstat_named_t cpk_runnable; /* cum # of runnable threads */ 107*7c478bd9Sstevel@tonic-gate kstat_named_t cpk_waiting; /* cum # waiting for I/O */ 108*7c478bd9Sstevel@tonic-gate kstat_named_t cpk_ncpus; /* current # of CPUs */ 109*7c478bd9Sstevel@tonic-gate kstat_named_t cpk_avenrun_1min; /* 1-minute load average */ 110*7c478bd9Sstevel@tonic-gate kstat_named_t cpk_avenrun_5min; /* 5-minute load average */ 111*7c478bd9Sstevel@tonic-gate kstat_named_t cpk_avenrun_15min; /* 15-minute load average */ 112*7c478bd9Sstevel@tonic-gate } cpupart_kstat_t; 113*7c478bd9Sstevel@tonic-gate 114*7c478bd9Sstevel@tonic-gate /* 115*7c478bd9Sstevel@tonic-gate * Macro to obtain the maximum run priority for the global queue associated 116*7c478bd9Sstevel@tonic-gate * with given cpu partition. 117*7c478bd9Sstevel@tonic-gate */ 118*7c478bd9Sstevel@tonic-gate #define CP_MAXRUNPRI(cp) ((cp)->cp_kp_queue.disp_maxrunpri) 119*7c478bd9Sstevel@tonic-gate 120*7c478bd9Sstevel@tonic-gate /* 121*7c478bd9Sstevel@tonic-gate * This macro is used to determine if the given thread must surrender 122*7c478bd9Sstevel@tonic-gate * CPU to higher priority runnable threads on one of its dispatch queues. 123*7c478bd9Sstevel@tonic-gate * This should really be defined in <sys/disp.h> but it is not because 124*7c478bd9Sstevel@tonic-gate * including <sys/cpupart.h> there would cause recursive includes. 125*7c478bd9Sstevel@tonic-gate */ 126*7c478bd9Sstevel@tonic-gate #define DISP_MUST_SURRENDER(t) \ 127*7c478bd9Sstevel@tonic-gate ((DISP_MAXRUNPRI(t) > DISP_PRIO(t)) || \ 128*7c478bd9Sstevel@tonic-gate (CP_MAXRUNPRI(t->t_cpupart) > DISP_PRIO(t))) 129*7c478bd9Sstevel@tonic-gate 130*7c478bd9Sstevel@tonic-gate extern cpupart_t cp_default; 131*7c478bd9Sstevel@tonic-gate extern cpupart_t *cp_list_head; 132*7c478bd9Sstevel@tonic-gate extern uint_t cp_numparts; 133*7c478bd9Sstevel@tonic-gate extern uint_t cp_numparts_nonempty; 134*7c478bd9Sstevel@tonic-gate 135*7c478bd9Sstevel@tonic-gate extern void cpupart_initialize_default(); 136*7c478bd9Sstevel@tonic-gate extern cpupart_t *cpupart_find(psetid_t); 137*7c478bd9Sstevel@tonic-gate extern int cpupart_create(psetid_t *); 138*7c478bd9Sstevel@tonic-gate extern int cpupart_destroy(psetid_t); 139*7c478bd9Sstevel@tonic-gate extern psetid_t cpupart_query_cpu(cpu_t *); 140*7c478bd9Sstevel@tonic-gate extern int cpupart_attach_cpu(psetid_t, cpu_t *, int); 141*7c478bd9Sstevel@tonic-gate extern int cpupart_get_cpus(psetid_t *, processorid_t *, uint_t *); 142*7c478bd9Sstevel@tonic-gate extern int cpupart_bind_thread(kthread_id_t, psetid_t, int, void *, 143*7c478bd9Sstevel@tonic-gate void *); 144*7c478bd9Sstevel@tonic-gate extern void cpupart_kpqalloc(pri_t); 145*7c478bd9Sstevel@tonic-gate extern int cpupart_get_loadavg(psetid_t, int *, int); 146*7c478bd9Sstevel@tonic-gate extern uint_t cpupart_list(psetid_t *, uint_t, int); 147*7c478bd9Sstevel@tonic-gate extern int cpupart_setattr(psetid_t, uint_t); 148*7c478bd9Sstevel@tonic-gate extern int cpupart_getattr(psetid_t, uint_t *); 149*7c478bd9Sstevel@tonic-gate 150*7c478bd9Sstevel@tonic-gate #endif /* _KERNEL */ 151*7c478bd9Sstevel@tonic-gate 152*7c478bd9Sstevel@tonic-gate #ifdef __cplusplus 153*7c478bd9Sstevel@tonic-gate } 154*7c478bd9Sstevel@tonic-gate #endif 155*7c478bd9Sstevel@tonic-gate 156*7c478bd9Sstevel@tonic-gate #endif /* _SYS_CPUPART_H */ 157