1 1.7 ryo /* $NetBSD: tprof.h,v 1.7 2022/12/01 00:32:52 ryo Exp $ */ 2 1.1 yamt 3 1.1 yamt /*- 4 1.5 yamt * Copyright (c)2008,2009,2010 YAMAMOTO Takashi, 5 1.1 yamt * All rights reserved. 6 1.1 yamt * 7 1.1 yamt * Redistribution and use in source and binary forms, with or without 8 1.1 yamt * modification, are permitted provided that the following conditions 9 1.1 yamt * are met: 10 1.1 yamt * 1. Redistributions of source code must retain the above copyright 11 1.1 yamt * notice, this list of conditions and the following disclaimer. 12 1.1 yamt * 2. Redistributions in binary form must reproduce the above copyright 13 1.1 yamt * notice, this list of conditions and the following disclaimer in the 14 1.1 yamt * documentation and/or other materials provided with the distribution. 15 1.1 yamt * 16 1.1 yamt * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 1.1 yamt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 1.1 yamt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 1.1 yamt * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 1.1 yamt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 1.1 yamt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 1.1 yamt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 1.1 yamt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 1.1 yamt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 1.1 yamt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 1.1 yamt * SUCH DAMAGE. 27 1.1 yamt */ 28 1.1 yamt 29 1.1 yamt #ifndef _DEV_TPROF_TPROF_H_ 30 1.1 yamt #define _DEV_TPROF_TPROF_H_ 31 1.1 yamt 32 1.5 yamt /* 33 1.5 yamt * definitions used by backend drivers 34 1.5 yamt */ 35 1.5 yamt 36 1.5 yamt #include <sys/types.h> 37 1.5 yamt 38 1.5 yamt #include <dev/tprof/tprof_types.h> 39 1.5 yamt 40 1.7 ryo struct tprof_backend_softc_counter { 41 1.7 ryo tprof_param_t ctr_param; 42 1.7 ryo u_int ctr_bitwidth; 43 1.7 ryo uint64_t ctr_counter_val; 44 1.7 ryo uint64_t ctr_counter_reset_val; 45 1.7 ryo }; 46 1.7 ryo 47 1.7 ryo typedef struct tprof_backend_softc { 48 1.7 ryo u_int sc_ncounters; 49 1.7 ryo tprof_countermask_t sc_ctr_running_mask;/* start/stop */ 50 1.7 ryo tprof_countermask_t sc_ctr_configured_mask; /* configured */ 51 1.7 ryo tprof_countermask_t sc_ctr_ovf_mask; /* overflow intr required */ 52 1.7 ryo tprof_countermask_t sc_ctr_prof_mask; /* profiled */ 53 1.7 ryo percpu_t *sc_ctr_offset_percpu; 54 1.7 ryo size_t sc_ctr_offset_percpu_size; 55 1.7 ryo struct tprof_backend_softc_counter sc_count[TPROF_MAXCOUNTERS]; 56 1.7 ryo } tprof_backend_softc_t; 57 1.7 ryo 58 1.2 yamt typedef struct tprof_backend_ops { 59 1.6 maxv uint32_t (*tbo_ident)(void); 60 1.7 ryo u_int (*tbo_ncounters)(void); 61 1.7 ryo u_int (*tbo_counter_bitwidth)(u_int); 62 1.7 ryo uint64_t (*tbo_counter_read)(u_int); 63 1.7 ryo uint64_t (*tbo_counter_estimate_freq)(u_int); 64 1.7 ryo int (*tbo_valid_event)(u_int, const tprof_param_t *); 65 1.7 ryo void (*tbo_configure_event)(u_int, const tprof_param_t *); 66 1.7 ryo void (*tbo_start)(tprof_countermask_t); 67 1.7 ryo void (*tbo_stop)(tprof_countermask_t); 68 1.7 ryo int (*tbo_establish)(tprof_backend_softc_t *); 69 1.7 ryo void (*tbo_disestablish)(tprof_backend_softc_t *); 70 1.2 yamt } tprof_backend_ops_t; 71 1.2 yamt 72 1.7 ryo #define TPROF_BACKEND_VERSION 4 73 1.2 yamt int tprof_backend_register(const char *, const tprof_backend_ops_t *, int); 74 1.2 yamt int tprof_backend_unregister(const char *); 75 1.1 yamt 76 1.3 yamt typedef struct { 77 1.5 yamt uintptr_t tfi_pc; /* program counter */ 78 1.7 ryo u_int tfi_counter; /* counter. 0..(TPROF_MAXCOUNTERS-1) */ 79 1.5 yamt bool tfi_inkernel; /* if tfi_pc is in the kernel address space */ 80 1.3 yamt } tprof_frame_info_t; 81 1.3 yamt 82 1.6 maxv void tprof_sample(void *, const tprof_frame_info_t *); 83 1.1 yamt 84 1.1 yamt #endif /* _DEV_TPROF_TPROF_H_ */ 85
Indexes created Sun Sep 21 19:09:51 GMT 2025