1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright (c) 1998 by Sun Microsystems, Inc. 24*0Sstevel@tonic-gate * All rights reserved. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #ifndef _SYS_FTRACE_H 28*0Sstevel@tonic-gate #define _SYS_FTRACE_H 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #ifdef __cplusplus 33*0Sstevel@tonic-gate extern "C" { 34*0Sstevel@tonic-gate #endif 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate /* 37*0Sstevel@tonic-gate * Constants used by both asm and non-asm code. 38*0Sstevel@tonic-gate */ 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate /* 41*0Sstevel@tonic-gate * Flags determining the state of tracing - 42*0Sstevel@tonic-gate * both for the "ftrace_state" variable, and for the per-CPU variable 43*0Sstevel@tonic-gate * "cpu[N]->cpu_ftrace_state". 44*0Sstevel@tonic-gate */ 45*0Sstevel@tonic-gate #define FTRACE_READY 0x00000001 46*0Sstevel@tonic-gate #define FTRACE_ENABLED 0x00000002 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate #if !defined(_ASM) 49*0Sstevel@tonic-gate 50*0Sstevel@tonic-gate #include <sys/thread.h> 51*0Sstevel@tonic-gate #include <sys/cpuvar.h> 52*0Sstevel@tonic-gate #include <sys/types.h> 53*0Sstevel@tonic-gate 54*0Sstevel@tonic-gate /* 55*0Sstevel@tonic-gate * The record of a single event. 56*0Sstevel@tonic-gate * 57*0Sstevel@tonic-gate * Should fit nicely into a standard cache line. 58*0Sstevel@tonic-gate * Here, the 32-bit version is 32 bytes, and the 64-bit version is 64 bytes. 59*0Sstevel@tonic-gate */ 60*0Sstevel@tonic-gate typedef struct ftrace_record { 61*0Sstevel@tonic-gate char *ftr_event; 62*0Sstevel@tonic-gate kthread_t *ftr_thread; 63*0Sstevel@tonic-gate uint64_t ftr_tick; 64*0Sstevel@tonic-gate caddr_t ftr_caller; 65*0Sstevel@tonic-gate ulong_t ftr_data1; 66*0Sstevel@tonic-gate ulong_t ftr_data2; 67*0Sstevel@tonic-gate ulong_t ftr_data3; 68*0Sstevel@tonic-gate #ifdef _LP64 69*0Sstevel@tonic-gate ulong_t __pad; 70*0Sstevel@tonic-gate #endif 71*0Sstevel@tonic-gate } ftrace_record_t; 72*0Sstevel@tonic-gate 73*0Sstevel@tonic-gate /* 74*0Sstevel@tonic-gate * Default per-CPU event ring buffer size. 75*0Sstevel@tonic-gate */ 76*0Sstevel@tonic-gate #define FTRACE_NENT 1024 77*0Sstevel@tonic-gate 78*0Sstevel@tonic-gate #ifdef _KERNEL 79*0Sstevel@tonic-gate 80*0Sstevel@tonic-gate /* 81*0Sstevel@tonic-gate * Tunable parameters in /etc/system. 82*0Sstevel@tonic-gate */ 83*0Sstevel@tonic-gate extern int ftrace_atboot; /* Whether to start fast tracing on boot. */ 84*0Sstevel@tonic-gate extern int ftrace_nent; /* Size of the per-CPU event ring buffer. */ 85*0Sstevel@tonic-gate 86*0Sstevel@tonic-gate extern int ftrace_cpu_setup(cpu_setup_t, int, void *); 87*0Sstevel@tonic-gate extern void ftrace_init(void); 88*0Sstevel@tonic-gate extern int ftrace_start(void); 89*0Sstevel@tonic-gate extern int ftrace_stop(void); 90*0Sstevel@tonic-gate extern void ftrace_0(char *); 91*0Sstevel@tonic-gate extern void ftrace_1(char *, ulong_t); 92*0Sstevel@tonic-gate extern void ftrace_2(char *, ulong_t, ulong_t); 93*0Sstevel@tonic-gate extern void ftrace_3(char *, ulong_t, ulong_t, ulong_t); 94*0Sstevel@tonic-gate 95*0Sstevel@tonic-gate #define FTRACE_0(fmt) \ 96*0Sstevel@tonic-gate { \ 97*0Sstevel@tonic-gate if (CPU->cpu_ftrace.ftd_state & FTRACE_ENABLED) \ 98*0Sstevel@tonic-gate ftrace_0(fmt); \ 99*0Sstevel@tonic-gate } 100*0Sstevel@tonic-gate #define FTRACE_1(fmt, d1) \ 101*0Sstevel@tonic-gate { \ 102*0Sstevel@tonic-gate if (CPU->cpu_ftrace.ftd_state & FTRACE_ENABLED) \ 103*0Sstevel@tonic-gate ftrace_1(fmt, d1); \ 104*0Sstevel@tonic-gate } 105*0Sstevel@tonic-gate #define FTRACE_2(fmt, d1, d2) \ 106*0Sstevel@tonic-gate { \ 107*0Sstevel@tonic-gate if (CPU->cpu_ftrace.ftd_state & FTRACE_ENABLED) \ 108*0Sstevel@tonic-gate ftrace_2(fmt, d1, d2); \ 109*0Sstevel@tonic-gate } 110*0Sstevel@tonic-gate #define FTRACE_3(fmt, d1, d2, d3) \ 111*0Sstevel@tonic-gate { \ 112*0Sstevel@tonic-gate if (CPU->cpu_ftrace.ftd_state & FTRACE_ENABLED) \ 113*0Sstevel@tonic-gate ftrace_3(fmt, d1, d2, d3); \ 114*0Sstevel@tonic-gate } 115*0Sstevel@tonic-gate #define FTRACE_START() ftrace_start() 116*0Sstevel@tonic-gate #define FTRACE_STOP() ftrace_stop() 117*0Sstevel@tonic-gate 118*0Sstevel@tonic-gate #endif /* _KERNEL */ 119*0Sstevel@tonic-gate 120*0Sstevel@tonic-gate #endif /* !defined(_ASM) */ 121*0Sstevel@tonic-gate 122*0Sstevel@tonic-gate #ifdef __cplusplus 123*0Sstevel@tonic-gate } 124*0Sstevel@tonic-gate #endif 125*0Sstevel@tonic-gate 126*0Sstevel@tonic-gate #endif /* _SYS_FTRACE_H */ 127