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 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _CMT_H 27 #define _CMT_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 /* 32 * CMT PG class 33 */ 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 #if (defined(_KERNEL) || defined(_KMEMUSER)) 40 #include <sys/group.h> 41 #include <sys/pghw.h> 42 #include <sys/types.h> 43 44 /* 45 * CMT pg structure 46 */ 47 typedef struct pg_cmt { 48 struct pghw cmt_pg; /* physical grouping */ 49 struct group *cmt_siblings; /* CMT PGs to balance with */ 50 struct pg_cmt *cmt_parent; /* Parent CMT PG */ 51 struct group *cmt_children; /* Active children CMT PGs */ 52 int cmt_nchildren; /* # of children CMT PGs */ 53 int cmt_hint; /* hint for balancing */ 54 uint32_t cmt_nrunning; /* # of running threads */ 55 struct group cmt_cpus_actv; 56 bitset_t cmt_cpus_actv_set; /* bitset of active CPUs */ 57 } pg_cmt_t; 58 59 60 /* 61 * Change the number of running threads on the pg 62 */ 63 #define PG_NRUN_UPDATE(cp, n) (pg_cmt_load((cp), (n))) 64 65 void pg_cmt_load(cpu_t *, int); 66 void pg_cmt_cpu_startup(cpu_t *); 67 int pg_cmt_can_migrate(cpu_t *, cpu_t *); 68 69 #endif /* !_KERNEL && !_KMEMUSER */ 70 71 #ifdef __cplusplus 72 } 73 #endif 74 75 #endif /* _CMT_H */ 76