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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 1997-2003 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_LOCKSTAT_H 28 #define _SYS_LOCKSTAT_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/dtrace.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 #define LS_MUTEX_ENTER_ACQUIRE 0 39 #define LS_MUTEX_ENTER_BLOCK 1 40 #define LS_MUTEX_ENTER_SPIN 2 41 #define LS_MUTEX_EXIT_RELEASE 3 42 #define LS_MUTEX_DESTROY_RELEASE 4 43 #define LS_MUTEX_TRYENTER_ACQUIRE 5 44 #define LS_LOCK_SET_ACQUIRE 6 45 #define LS_LOCK_SET_SPIN 7 46 #define LS_LOCK_SET_SPL_ACQUIRE 8 47 #define LS_LOCK_SET_SPL_SPIN 9 48 #define LS_LOCK_TRY_ACQUIRE 10 49 #define LS_LOCK_CLEAR_RELEASE 11 50 #define LS_LOCK_CLEAR_SPLX_RELEASE 12 51 #define LS_CLOCK_UNLOCK_RELEASE 13 52 #define LS_RW_ENTER_ACQUIRE 14 53 #define LS_RW_ENTER_BLOCK 15 54 #define LS_RW_EXIT_RELEASE 16 55 #define LS_RW_TRYENTER_ACQUIRE 17 56 #define LS_RW_TRYUPGRADE_UPGRADE 18 57 #define LS_RW_DOWNGRADE_DOWNGRADE 19 58 #define LS_THREAD_LOCK_ACQUIRE 20 59 #define LS_THREAD_LOCK_SPIN 21 60 #define LS_THREAD_LOCK_HIGH_ACQUIRE 22 61 #define LS_THREAD_LOCK_HIGH_SPIN 23 62 #define LS_TURNSTILE_INTERLOCK_SPIN 24 63 #define LS_NPROBES 25 64 65 #define LS_MUTEX_ENTER "mutex_enter" 66 #define LS_MUTEX_EXIT "mutex_exit" 67 #define LS_MUTEX_DESTROY "mutex_destroy" 68 #define LS_MUTEX_TRYENTER "mutex_tryenter" 69 #define LS_LOCK_SET "lock_set" 70 #define LS_LOCK_SET_SPL "lock_set_spl" 71 #define LS_LOCK_TRY "lock_try" 72 #define LS_LOCK_CLEAR "lock_clear" 73 #define LS_LOCK_CLEAR_SPLX "lock_clear_splx" 74 #define LS_CLOCK_UNLOCK "CLOCK_UNLOCK" 75 #define LS_RW_ENTER "rw_enter" 76 #define LS_RW_EXIT "rw_exit" 77 #define LS_RW_TRYENTER "rw_tryenter" 78 #define LS_RW_TRYUPGRADE "rw_tryupgrade" 79 #define LS_RW_DOWNGRADE "rw_downgrade" 80 #define LS_THREAD_LOCK "thread_lock" 81 #define LS_THREAD_LOCK_HIGH "thread_lock_high" 82 83 #define LS_ACQUIRE "acquire" 84 #define LS_RELEASE "release" 85 #define LS_SPIN "spin" 86 #define LS_BLOCK "block" 87 #define LS_UPGRADE "upgrade" 88 #define LS_DOWNGRADE "downgrade" 89 90 #define LS_TYPE_ADAPTIVE "adaptive" 91 #define LS_TYPE_SPIN "spin" 92 #define LS_TYPE_THREAD "thread" 93 #define LS_TYPE_RW "rw" 94 95 #define LSA_ACQUIRE (LS_TYPE_ADAPTIVE "-" LS_ACQUIRE) 96 #define LSA_RELEASE (LS_TYPE_ADAPTIVE "-" LS_RELEASE) 97 #define LSA_SPIN (LS_TYPE_ADAPTIVE "-" LS_SPIN) 98 #define LSA_BLOCK (LS_TYPE_ADAPTIVE "-" LS_BLOCK) 99 #define LSS_ACQUIRE (LS_TYPE_SPIN "-" LS_ACQUIRE) 100 #define LSS_RELEASE (LS_TYPE_SPIN "-" LS_RELEASE) 101 #define LSS_SPIN (LS_TYPE_SPIN "-" LS_SPIN) 102 #define LSR_ACQUIRE (LS_TYPE_RW "-" LS_ACQUIRE) 103 #define LSR_RELEASE (LS_TYPE_RW "-" LS_RELEASE) 104 #define LSR_BLOCK (LS_TYPE_RW "-" LS_BLOCK) 105 #define LSR_UPGRADE (LS_TYPE_RW "-" LS_UPGRADE) 106 #define LSR_DOWNGRADE (LS_TYPE_RW "-" LS_DOWNGRADE) 107 #define LST_SPIN (LS_TYPE_THREAD "-" LS_SPIN) 108 109 #ifndef _ASM 110 111 #include <sys/types.h> 112 #include <sys/inttypes.h> 113 #include <sys/systm.h> 114 #include <sys/atomic.h> 115 116 #ifdef _KERNEL 117 118 /* 119 * Platform-independent kernel support for the lockstat driver. 120 */ 121 extern dtrace_id_t lockstat_probemap[LS_NPROBES]; 122 extern void (*lockstat_probe)(dtrace_id_t, uintptr_t, uintptr_t, 123 uintptr_t, uintptr_t, uintptr_t); 124 125 extern int lockstat_active_threads(void); 126 extern int lockstat_depth(void); 127 extern void lockstat_hot_patch(void); 128 129 /* 130 * Macros to record lockstat probes. 131 */ 132 #define LOCKSTAT_RECORD4(probe, lp, arg0, arg1, arg2, arg3) \ 133 if (lockstat_probemap[(probe)]) { \ 134 dtrace_id_t id; \ 135 curthread->t_lockstat++; \ 136 membar_enter(); \ 137 if ((id = lockstat_probemap[(probe)]) != 0) \ 138 (*lockstat_probe)(id, (uintptr_t)(lp), (arg0), \ 139 (arg1), (arg2), (arg3)); \ 140 curthread->t_lockstat--; \ 141 } 142 143 #define LOCKSTAT_RECORD(probe, lp, arg) \ 144 LOCKSTAT_RECORD4(probe, lp, arg, 0, 0, 0) 145 146 #define LOCKSTAT_RECORD0(probe, lp) \ 147 LOCKSTAT_RECORD4(probe, lp, 0, 0, 0, 0) 148 149 #endif /* _KERNEL */ 150 151 #endif /* _ASM */ 152 153 #ifdef __cplusplus 154 } 155 #endif 156 157 #endif /* _SYS_LOCKSTAT_H */ 158