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 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_MACHCLOCK_H 27 #define _SYS_MACHCLOCK_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 #ifdef _ASM 36 /* 37 * Macro to clear the NPT (non-privileged trap) bit in the %tick/%stick 38 * register. Uses %g1-%g4. 39 */ 40 #define CLEARTICKNPT \ 41 sethi %hi(cpu_clearticknpt), %g1; \ 42 jmp %g1 + %lo(cpu_clearticknpt); \ 43 rd %pc, %g4 44 45 #endif /* _ASM */ 46 47 #if defined(CPU_MODULE) 48 49 /* 50 * Constants used to convert hi-res timestamps into nanoseconds 51 * (see <sys/clock.h> file for more information) 52 */ 53 54 #if defined(CHEETAH) || defined(HUMMINGBIRD) || defined(OLYMPUS_C) 55 56 /* 57 * At least 3.9MHz, for slower %stick-based systems. 58 */ 59 #define NSEC_SHIFT 8 60 #define VTRACE_SHIFT 8 61 62 #elif defined(SPITFIRE) 63 64 /* 65 * At least 62.5 MHz, for faster %tick-based systems. 66 */ 67 #define NSEC_SHIFT 4 68 #define VTRACE_SHIFT 4 69 70 #else 71 #error "Compiling for CPU_MODULE but no CPU specified" 72 #endif 73 74 #endif /* CPU_MODULE */ 75 76 #ifndef _ASM 77 78 #ifdef _KERNEL 79 80 /* 81 * Hardware watchdog variables and knobs 82 */ 83 84 #define CLK_WATCHDOG_DEFAULT 10 /* 10 seconds */ 85 86 extern int watchdog_enable; 87 extern int watchdog_available; 88 extern int watchdog_activated; 89 extern uint_t watchdog_timeout_seconds; 90 91 /* 92 * tod module name and operations 93 */ 94 struct tod_ops { 95 timestruc_t (*tod_get)(void); 96 void (*tod_set)(timestruc_t); 97 uint_t (*tod_set_watchdog_timer)(uint_t); 98 uint_t (*tod_clear_watchdog_timer)(void); 99 void (*tod_set_power_alarm)(timestruc_t); 100 void (*tod_clear_power_alarm)(void); 101 uint64_t (*tod_get_cpufrequency)(void); 102 }; 103 104 extern struct tod_ops tod_ops; 105 extern char *tod_module_name; 106 107 #endif /* _KERNEL */ 108 109 #endif /* _ASM */ 110 111 #ifdef __cplusplus 112 } 113 #endif 114 115 #endif /* !_SYS_MACHCLOCK_H */ 116