181 lines
4.7 KiB
C
181 lines
4.7 KiB
C
/* $NetBSD: tprof_armv8.c,v 1.1 2018/07/15 16:25:31 jmcneill Exp $ */
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/*-
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* Copyright (c) 2018 Jared McNeill <jmcneill@invisible.ca>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <err.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <dev/tprof/tprof_ioctl.h>
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#include "../tprof.h"
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struct pmu_event {
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uint16_t event;
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const char *name;
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};
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struct pmu_event_table {
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const char *name;
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struct pmu_event *events;
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u_int nevents;
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struct pmu_event_table *next;
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};
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/*
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* Common event numbers, from ARMv8 ARM.
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*/
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static struct pmu_event pmu_armv8_common_events[] = {
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{ 0x0000, "SW_INCR" },
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{ 0x0001, "L1I_CACHE_REFILL" },
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{ 0x0002, "L1I_TLB_REFILL" },
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{ 0x0003, "L1D_CACHE_REFILL" },
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{ 0x0004, "L1D_CACHE" },
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{ 0x0005, "L1D_TLB_REFILL" },
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{ 0x0006, "LD_RETIRED" },
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{ 0x0007, "ST_RETIRED" },
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{ 0x0008, "INST_RETIRED" },
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{ 0x0009, "EXC_TAKEN" },
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{ 0x000a, "EXC_RETURN" },
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{ 0x000b, "CID_WRITE_RETIRED" },
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{ 0x000c, "PC_WRITE_RETIRED" },
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{ 0x000d, "BR_IMMED_RETIRED" },
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{ 0x000e, "BR_RETURN_RETIRED" },
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{ 0x000f, "UNALIGNED_LDST_RETIRED" },
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{ 0x0010, "BR_MIS_PRED" },
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{ 0x0011, "CPU_CYCLES" },
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{ 0x0012, "BR_PRED" },
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{ 0x0013, "MEM_ACCESS" },
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{ 0x0014, "L1I_CACHE" },
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{ 0x0015, "L1D_CACHE_WB" },
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{ 0x0016, "L2D_CACHE" },
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{ 0x0017, "L2D_CACHE_REFILL" },
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{ 0x0018, "L2D_CACHE_WB" },
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{ 0x0019, "BUS_ACCESS" },
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{ 0x001a, "MEMORY_ERROR" },
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{ 0x001b, "INST_SPEC" },
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{ 0x001c, "TTBR_WRITE_RETIRED" },
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{ 0x001d, "BUS_CYCLES" },
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{ 0x001e, "CHAIN" },
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{ 0x001f, "L1D_CACHE_ALLOCATE" },
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{ 0x0020, "L2D_CACHE_ALLOCATE" },
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{ 0x0021, "BR_RETIRED" },
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{ 0x0022, "BR_MIS_PRED_RETIRED" },
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{ 0x0023, "STALL_FRONTEND" },
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{ 0x0024, "STALL_BACKEND" },
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{ 0x0025, "L1D_TLB" },
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{ 0x0026, "L1I_TLB" },
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{ 0x0027, "L2I_CACHE" },
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{ 0x0028, "L2I_CACHE_REFILL" },
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{ 0x0029, "L3D_CACHE_ALLOCATE" },
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{ 0x002a, "L3D_CACHE_REFILL" },
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{ 0x002b, "L3D_CACHE" },
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{ 0x002c, "L3D_CACHE_WB" },
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{ 0x002d, "L2D_TLB_REFILL" },
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{ 0x002e, "L2I_TLB_REFILL" },
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{ 0x002f, "L2D_TLB" },
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{ 0x0030, "L2I_TLB" },
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{ 0x0031, "REMOTE_ACCESS" },
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{ 0x0032, "LL_CACHE" },
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{ 0x0033, "LL_CACHE_MISS" },
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{ 0x0034, "DTLB_WALK" },
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{ 0x0035, "ITLB_WALK" },
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{ 0x0036, "LL_CACHE_RD" },
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{ 0x0037, "LL_CACHE_MISS_RD" },
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{ 0x0038, "REMOTE_ACCESS_RD" },
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};
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static struct pmu_event_table pmu_armv8 = {
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.name = "ARMv8 common architectural and microarchitectural events",
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.events = pmu_armv8_common_events,
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.nevents = __arraycount(pmu_armv8_common_events),
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.next = NULL
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};
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static struct pmu_event_table *events = NULL;
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int
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tprof_event_init(uint32_t ident)
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{
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if (ident != TPROF_IDENT_ARMV8_GENERIC)
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return -1;
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events = &pmu_armv8;
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return 0;
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}
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static void
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tprof_event_list_table(struct pmu_event_table *tbl)
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{
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u_int n;
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printf("%s:\n", tbl->name);
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for (n = 0; n < tbl->nevents; n++) {
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printf("\t%s\n", tbl->events[n].name);
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}
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if (tbl->next)
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tprof_event_list_table(tbl->next);
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}
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void
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tprof_event_list(void)
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{
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tprof_event_list_table(events);
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}
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static void
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tprof_event_lookup_table(const char *name, struct tprof_param *param,
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struct pmu_event_table *tbl)
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{
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u_int n;
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for (n = 0; n < tbl->nevents; n++) {
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if (strcmp(tbl->events[n].name, name) == 0) {
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param->p_event = tbl->events[n].event;
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param->p_unit = 0;
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return;
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}
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}
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if (tbl->next)
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tprof_event_lookup_table(name, param, tbl->next);
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else
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errx(EXIT_FAILURE, "event '%s' unknown", name);
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}
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void
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tprof_event_lookup(const char *name, struct tprof_param *param)
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{
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tprof_event_lookup_table(name, param, events);
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}
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