1 /* $NetBSD: tprof_armv8.c,v 1.1 2018/07/15 16:25:31 jmcneill Exp $ */ 2 3 /*- 4 * Copyright (c) 2018 Jared McNeill <jmcneill (at) invisible.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 #include <sys/types.h> 31 32 #include <err.h> 33 #include <stdio.h> 34 #include <stdint.h> 35 #include <stdlib.h> 36 #include <string.h> 37 38 #include <dev/tprof/tprof_ioctl.h> 39 #include "../tprof.h" 40 41 struct pmu_event { 42 uint16_t event; 43 const char *name; 44 }; 45 46 struct pmu_event_table { 47 const char *name; 48 struct pmu_event *events; 49 u_int nevents; 50 struct pmu_event_table *next; 51 }; 52 53 /* 54 * Common event numbers, from ARMv8 ARM. 55 */ 56 static struct pmu_event pmu_armv8_common_events[] = { 57 { 0x0000, "SW_INCR" }, 58 { 0x0001, "L1I_CACHE_REFILL" }, 59 { 0x0002, "L1I_TLB_REFILL" }, 60 { 0x0003, "L1D_CACHE_REFILL" }, 61 { 0x0004, "L1D_CACHE" }, 62 { 0x0005, "L1D_TLB_REFILL" }, 63 { 0x0006, "LD_RETIRED" }, 64 { 0x0007, "ST_RETIRED" }, 65 { 0x0008, "INST_RETIRED" }, 66 { 0x0009, "EXC_TAKEN" }, 67 { 0x000a, "EXC_RETURN" }, 68 { 0x000b, "CID_WRITE_RETIRED" }, 69 { 0x000c, "PC_WRITE_RETIRED" }, 70 { 0x000d, "BR_IMMED_RETIRED" }, 71 { 0x000e, "BR_RETURN_RETIRED" }, 72 { 0x000f, "UNALIGNED_LDST_RETIRED" }, 73 { 0x0010, "BR_MIS_PRED" }, 74 { 0x0011, "CPU_CYCLES" }, 75 { 0x0012, "BR_PRED" }, 76 { 0x0013, "MEM_ACCESS" }, 77 { 0x0014, "L1I_CACHE" }, 78 { 0x0015, "L1D_CACHE_WB" }, 79 { 0x0016, "L2D_CACHE" }, 80 { 0x0017, "L2D_CACHE_REFILL" }, 81 { 0x0018, "L2D_CACHE_WB" }, 82 { 0x0019, "BUS_ACCESS" }, 83 { 0x001a, "MEMORY_ERROR" }, 84 { 0x001b, "INST_SPEC" }, 85 { 0x001c, "TTBR_WRITE_RETIRED" }, 86 { 0x001d, "BUS_CYCLES" }, 87 { 0x001e, "CHAIN" }, 88 { 0x001f, "L1D_CACHE_ALLOCATE" }, 89 { 0x0020, "L2D_CACHE_ALLOCATE" }, 90 { 0x0021, "BR_RETIRED" }, 91 { 0x0022, "BR_MIS_PRED_RETIRED" }, 92 { 0x0023, "STALL_FRONTEND" }, 93 { 0x0024, "STALL_BACKEND" }, 94 { 0x0025, "L1D_TLB" }, 95 { 0x0026, "L1I_TLB" }, 96 { 0x0027, "L2I_CACHE" }, 97 { 0x0028, "L2I_CACHE_REFILL" }, 98 { 0x0029, "L3D_CACHE_ALLOCATE" }, 99 { 0x002a, "L3D_CACHE_REFILL" }, 100 { 0x002b, "L3D_CACHE" }, 101 { 0x002c, "L3D_CACHE_WB" }, 102 { 0x002d, "L2D_TLB_REFILL" }, 103 { 0x002e, "L2I_TLB_REFILL" }, 104 { 0x002f, "L2D_TLB" }, 105 { 0x0030, "L2I_TLB" }, 106 { 0x0031, "REMOTE_ACCESS" }, 107 { 0x0032, "LL_CACHE" }, 108 { 0x0033, "LL_CACHE_MISS" }, 109 { 0x0034, "DTLB_WALK" }, 110 { 0x0035, "ITLB_WALK" }, 111 { 0x0036, "LL_CACHE_RD" }, 112 { 0x0037, "LL_CACHE_MISS_RD" }, 113 { 0x0038, "REMOTE_ACCESS_RD" }, 114 }; 115 116 static struct pmu_event_table pmu_armv8 = { 117 .name = "ARMv8 common architectural and microarchitectural events", 118 .events = pmu_armv8_common_events, 119 .nevents = __arraycount(pmu_armv8_common_events), 120 .next = NULL 121 }; 122 123 static struct pmu_event_table *events = NULL; 124 125 int 126 tprof_event_init(uint32_t ident) 127 { 128 if (ident != TPROF_IDENT_ARMV8_GENERIC) 129 return -1; 130 131 events = &pmu_armv8; 132 133 return 0; 134 } 135 136 static void 137 tprof_event_list_table(struct pmu_event_table *tbl) 138 { 139 u_int n; 140 141 printf("%s:\n", tbl->name); 142 for (n = 0; n < tbl->nevents; n++) { 143 printf("\t%s\n", tbl->events[n].name); 144 } 145 146 if (tbl->next) 147 tprof_event_list_table(tbl->next); 148 } 149 150 void 151 tprof_event_list(void) 152 { 153 tprof_event_list_table(events); 154 } 155 156 static void 157 tprof_event_lookup_table(const char *name, struct tprof_param *param, 158 struct pmu_event_table *tbl) 159 { 160 u_int n; 161 162 for (n = 0; n < tbl->nevents; n++) { 163 if (strcmp(tbl->events[n].name, name) == 0) { 164 param->p_event = tbl->events[n].event; 165 param->p_unit = 0; 166 return; 167 } 168 } 169 170 if (tbl->next) 171 tprof_event_lookup_table(name, param, tbl->next); 172 else 173 errx(EXIT_FAILURE, "event '%s' unknown", name); 174 } 175 176 void 177 tprof_event_lookup(const char *name, struct tprof_param *param) 178 { 179 tprof_event_lookup_table(name, param, events); 180 } 181
Indexes created Sat Sep 20 22:09:52 GMT 2025