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1// SPDX-License-Identifier: GPL-2.02#include <linux/types.h>3#include <linux/string.h>4#include <linux/zalloc.h>5#include <stdlib.h>6 7#include "../../../util/event.h"8#include "../../../util/synthetic-events.h"9#include "../../../util/machine.h"10#include "../../../util/tool.h"11#include "../../../util/map.h"12#include "../../../util/debug.h"13#include "util/sample.h"14 15#if defined(__x86_64__)16 17struct perf_event__synthesize_extra_kmaps_cb_args {18 const struct perf_tool *tool;19 perf_event__handler_t process;20 struct machine *machine;21 union perf_event *event;22};23 24static int perf_event__synthesize_extra_kmaps_cb(struct map *map, void *data)25{26 struct perf_event__synthesize_extra_kmaps_cb_args *args = data;27 union perf_event *event = args->event;28 struct kmap *kmap;29 size_t size;30 31 if (!__map__is_extra_kernel_map(map))32 return 0;33 34 kmap = map__kmap(map);35 36 size = sizeof(event->mmap) - sizeof(event->mmap.filename) +37 PERF_ALIGN(strlen(kmap->name) + 1, sizeof(u64)) +38 args->machine->id_hdr_size;39 40 memset(event, 0, size);41 42 event->mmap.header.type = PERF_RECORD_MMAP;43 44 /*45 * kernel uses 0 for user space maps, see kernel/perf_event.c46 * __perf_event_mmap47 */48 if (machine__is_host(args->machine))49 event->header.misc = PERF_RECORD_MISC_KERNEL;50 else51 event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL;52 53 event->mmap.header.size = size;54 55 event->mmap.start = map__start(map);56 event->mmap.len = map__size(map);57 event->mmap.pgoff = map__pgoff(map);58 event->mmap.pid = args->machine->pid;59 60 strlcpy(event->mmap.filename, kmap->name, PATH_MAX);61 62 if (perf_tool__process_synth_event(args->tool, event, args->machine, args->process) != 0)63 return -1;64 65 return 0;66}67 68int perf_event__synthesize_extra_kmaps(const struct perf_tool *tool,69 perf_event__handler_t process,70 struct machine *machine)71{72 int rc;73 struct maps *kmaps = machine__kernel_maps(machine);74 struct perf_event__synthesize_extra_kmaps_cb_args args = {75 .tool = tool,76 .process = process,77 .machine = machine,78 .event = zalloc(sizeof(args.event->mmap) + machine->id_hdr_size),79 };80 81 if (!args.event) {82 pr_debug("Not enough memory synthesizing mmap event "83 "for extra kernel maps\n");84 return -1;85 }86 87 rc = maps__for_each_map(kmaps, perf_event__synthesize_extra_kmaps_cb, &args);88 89 free(args.event);90 return rc;91}92 93#endif94 95void arch_perf_parse_sample_weight(struct perf_sample *data,96 const __u64 *array, u64 type)97{98 union perf_sample_weight weight;99 100 weight.full = *array;101 if (type & PERF_SAMPLE_WEIGHT)102 data->weight = weight.full;103 else {104 data->weight = weight.var1_dw;105 data->ins_lat = weight.var2_w;106 data->retire_lat = weight.var3_w;107 }108}109 110void arch_perf_synthesize_sample_weight(const struct perf_sample *data,111 __u64 *array, u64 type)112{113 *array = data->weight;114 115 if (type & PERF_SAMPLE_WEIGHT_STRUCT) {116 *array &= 0xffffffff;117 *array |= ((u64)data->ins_lat << 32);118 *array |= ((u64)data->retire_lat << 48);119 }120}121 122const char *arch_perf_header_entry(const char *se_header)123{124 if (!strcmp(se_header, "Local Pipeline Stage Cycle"))125 return "Local Retire Latency";126 else if (!strcmp(se_header, "Pipeline Stage Cycle"))127 return "Retire Latency";128 129 return se_header;130}131 132int arch_support_sort_key(const char *sort_key)133{134 if (!strcmp(sort_key, "p_stage_cyc"))135 return 1;136 if (!strcmp(sort_key, "local_p_stage_cyc"))137 return 1;138 return 0;139}140