10Sstevel@tonic-gate /* 20Sstevel@tonic-gate * CDDL HEADER START 30Sstevel@tonic-gate * 40Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*3647Sbs21162 * Common Development and Distribution License (the "License"). 6*3647Sbs21162 * You may not use this file except in compliance with the License. 70Sstevel@tonic-gate * 80Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 90Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 100Sstevel@tonic-gate * See the License for the specific language governing permissions 110Sstevel@tonic-gate * and limitations under the License. 120Sstevel@tonic-gate * 130Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 140Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 150Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 160Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 170Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 180Sstevel@tonic-gate * 190Sstevel@tonic-gate * CDDL HEADER END 200Sstevel@tonic-gate */ 210Sstevel@tonic-gate /* 22*3647Sbs21162 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23*3647Sbs21162 * Use is subject to license terms. 240Sstevel@tonic-gate */ 250Sstevel@tonic-gate 260Sstevel@tonic-gate #ifndef _SYS_FTRACE_H 270Sstevel@tonic-gate #define _SYS_FTRACE_H 280Sstevel@tonic-gate 290Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 300Sstevel@tonic-gate 310Sstevel@tonic-gate #ifdef __cplusplus 320Sstevel@tonic-gate extern "C" { 330Sstevel@tonic-gate #endif 340Sstevel@tonic-gate 350Sstevel@tonic-gate /* 360Sstevel@tonic-gate * Constants used by both asm and non-asm code. 370Sstevel@tonic-gate */ 380Sstevel@tonic-gate 390Sstevel@tonic-gate /* 400Sstevel@tonic-gate * Flags determining the state of tracing - 410Sstevel@tonic-gate * both for the "ftrace_state" variable, and for the per-CPU variable 420Sstevel@tonic-gate * "cpu[N]->cpu_ftrace_state". 430Sstevel@tonic-gate */ 440Sstevel@tonic-gate #define FTRACE_READY 0x00000001 450Sstevel@tonic-gate #define FTRACE_ENABLED 0x00000002 460Sstevel@tonic-gate 470Sstevel@tonic-gate #if !defined(_ASM) 480Sstevel@tonic-gate 490Sstevel@tonic-gate #include <sys/thread.h> 500Sstevel@tonic-gate #include <sys/cpuvar.h> 510Sstevel@tonic-gate #include <sys/types.h> 520Sstevel@tonic-gate 530Sstevel@tonic-gate /* 540Sstevel@tonic-gate * The record of a single event. 550Sstevel@tonic-gate * 560Sstevel@tonic-gate * Should fit nicely into a standard cache line. 570Sstevel@tonic-gate * Here, the 32-bit version is 32 bytes, and the 64-bit version is 64 bytes. 580Sstevel@tonic-gate */ 590Sstevel@tonic-gate typedef struct ftrace_record { 600Sstevel@tonic-gate char *ftr_event; 610Sstevel@tonic-gate kthread_t *ftr_thread; 620Sstevel@tonic-gate uint64_t ftr_tick; 630Sstevel@tonic-gate caddr_t ftr_caller; 640Sstevel@tonic-gate ulong_t ftr_data1; 650Sstevel@tonic-gate ulong_t ftr_data2; 660Sstevel@tonic-gate ulong_t ftr_data3; 670Sstevel@tonic-gate #ifdef _LP64 680Sstevel@tonic-gate ulong_t __pad; 690Sstevel@tonic-gate #endif 700Sstevel@tonic-gate } ftrace_record_t; 710Sstevel@tonic-gate 720Sstevel@tonic-gate /* 730Sstevel@tonic-gate * Default per-CPU event ring buffer size. 740Sstevel@tonic-gate */ 750Sstevel@tonic-gate #define FTRACE_NENT 1024 760Sstevel@tonic-gate 770Sstevel@tonic-gate #ifdef _KERNEL 780Sstevel@tonic-gate 790Sstevel@tonic-gate /* 800Sstevel@tonic-gate * Tunable parameters in /etc/system. 810Sstevel@tonic-gate */ 820Sstevel@tonic-gate extern int ftrace_atboot; /* Whether to start fast tracing on boot. */ 830Sstevel@tonic-gate extern int ftrace_nent; /* Size of the per-CPU event ring buffer. */ 840Sstevel@tonic-gate 850Sstevel@tonic-gate extern int ftrace_cpu_setup(cpu_setup_t, int, void *); 860Sstevel@tonic-gate extern void ftrace_init(void); 870Sstevel@tonic-gate extern int ftrace_start(void); 880Sstevel@tonic-gate extern int ftrace_stop(void); 89*3647Sbs21162 extern void ftrace_0(char *, caddr_t); 90*3647Sbs21162 extern void ftrace_1(char *, ulong_t, caddr_t); 91*3647Sbs21162 extern void ftrace_2(char *, ulong_t, ulong_t, caddr_t); 92*3647Sbs21162 extern void ftrace_3(char *, ulong_t, ulong_t, ulong_t, caddr_t); 93*3647Sbs21162 extern void ftrace_3_notick(char *, ulong_t, ulong_t, ulong_t, 94*3647Sbs21162 caddr_t); 95*3647Sbs21162 96*3647Sbs21162 typedef uintptr_t ftrace_icookie_t; 97*3647Sbs21162 extern ftrace_icookie_t ftrace_interrupt_disable(void); 98*3647Sbs21162 extern void ftrace_interrupt_enable(ftrace_icookie_t); 99*3647Sbs21162 extern caddr_t caller(void); 1000Sstevel@tonic-gate 1010Sstevel@tonic-gate #define FTRACE_0(fmt) \ 1020Sstevel@tonic-gate { \ 1030Sstevel@tonic-gate if (CPU->cpu_ftrace.ftd_state & FTRACE_ENABLED) \ 104*3647Sbs21162 ftrace_0(fmt, caller()); \ 1050Sstevel@tonic-gate } 1060Sstevel@tonic-gate #define FTRACE_1(fmt, d1) \ 1070Sstevel@tonic-gate { \ 1080Sstevel@tonic-gate if (CPU->cpu_ftrace.ftd_state & FTRACE_ENABLED) \ 109*3647Sbs21162 ftrace_1(fmt, d1, caller()); \ 1100Sstevel@tonic-gate } 1110Sstevel@tonic-gate #define FTRACE_2(fmt, d1, d2) \ 1120Sstevel@tonic-gate { \ 1130Sstevel@tonic-gate if (CPU->cpu_ftrace.ftd_state & FTRACE_ENABLED) \ 114*3647Sbs21162 ftrace_2(fmt, d1, d2, caller()); \ 1150Sstevel@tonic-gate } 1160Sstevel@tonic-gate #define FTRACE_3(fmt, d1, d2, d3) \ 1170Sstevel@tonic-gate { \ 1180Sstevel@tonic-gate if (CPU->cpu_ftrace.ftd_state & FTRACE_ENABLED) \ 119*3647Sbs21162 ftrace_3(fmt, d1, d2, d3, caller()); \ 1200Sstevel@tonic-gate } 1210Sstevel@tonic-gate #define FTRACE_START() ftrace_start() 1220Sstevel@tonic-gate #define FTRACE_STOP() ftrace_stop() 1230Sstevel@tonic-gate 1240Sstevel@tonic-gate #endif /* _KERNEL */ 1250Sstevel@tonic-gate 1260Sstevel@tonic-gate #endif /* !defined(_ASM) */ 1270Sstevel@tonic-gate 1280Sstevel@tonic-gate #ifdef __cplusplus 1290Sstevel@tonic-gate } 1300Sstevel@tonic-gate #endif 1310Sstevel@tonic-gate 1320Sstevel@tonic-gate #endif /* _SYS_FTRACE_H */ 133