cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

stat.c (3628B)

      1// SPDX-License-Identifier: GPL-2.0
      2#include <linux/compiler.h>
      3#include "event.h"
      4#include "tests.h"
      5#include "stat.h"
      6#include "counts.h"
      7#include "debug.h"
      8#include "util/synthetic-events.h"
      9
     10static bool has_term(struct perf_record_stat_config *config,
     11		     u64 tag, u64 val)
     12{
     13	unsigned i;
     14
     15	for (i = 0; i < config->nr; i++) {
     16		if ((config->data[i].tag == tag) &&
     17		    (config->data[i].val == val))
     18			return true;
     19	}
     20
     21	return false;
     22}
     23
     24static int process_stat_config_event(struct perf_tool *tool __maybe_unused,
     25				     union perf_event *event,
     26				     struct perf_sample *sample __maybe_unused,
     27				     struct machine *machine __maybe_unused)
     28{
     29	struct perf_record_stat_config *config = &event->stat_config;
     30	struct perf_stat_config stat_config;
     31
     32#define HAS(term, val) \
     33	has_term(config, PERF_STAT_CONFIG_TERM__##term, val)
     34
     35	TEST_ASSERT_VAL("wrong nr",        config->nr == PERF_STAT_CONFIG_TERM__MAX);
     36	TEST_ASSERT_VAL("wrong aggr_mode", HAS(AGGR_MODE, AGGR_CORE));
     37	TEST_ASSERT_VAL("wrong scale",     HAS(SCALE, 1));
     38	TEST_ASSERT_VAL("wrong interval",  HAS(INTERVAL, 1));
     39
     40#undef HAS
     41
     42	perf_event__read_stat_config(&stat_config, config);
     43
     44	TEST_ASSERT_VAL("wrong aggr_mode", stat_config.aggr_mode == AGGR_CORE);
     45	TEST_ASSERT_VAL("wrong scale",     stat_config.scale == 1);
     46	TEST_ASSERT_VAL("wrong interval",  stat_config.interval == 1);
     47	return 0;
     48}
     49
     50static int test__synthesize_stat_config(struct test_suite *test __maybe_unused,
     51					int subtest __maybe_unused)
     52{
     53	struct perf_stat_config stat_config = {
     54		.aggr_mode	= AGGR_CORE,
     55		.scale		= 1,
     56		.interval	= 1,
     57	};
     58
     59	TEST_ASSERT_VAL("failed to synthesize stat_config",
     60		!perf_event__synthesize_stat_config(NULL, &stat_config, process_stat_config_event, NULL));
     61
     62	return 0;
     63}
     64
     65static int process_stat_event(struct perf_tool *tool __maybe_unused,
     66			      union perf_event *event,
     67			      struct perf_sample *sample __maybe_unused,
     68			      struct machine *machine __maybe_unused)
     69{
     70	struct perf_record_stat *st = &event->stat;
     71
     72	TEST_ASSERT_VAL("wrong cpu",    st->cpu    == 1);
     73	TEST_ASSERT_VAL("wrong thread", st->thread == 2);
     74	TEST_ASSERT_VAL("wrong id",     st->id     == 3);
     75	TEST_ASSERT_VAL("wrong val",    st->val    == 100);
     76	TEST_ASSERT_VAL("wrong run",    st->ena    == 200);
     77	TEST_ASSERT_VAL("wrong ena",    st->run    == 300);
     78	return 0;
     79}
     80
     81static int test__synthesize_stat(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
     82{
     83	struct perf_counts_values count;
     84
     85	count.val = 100;
     86	count.ena = 200;
     87	count.run = 300;
     88
     89	TEST_ASSERT_VAL("failed to synthesize stat_config",
     90			!perf_event__synthesize_stat(NULL, (struct perf_cpu){.cpu = 1}, 2, 3,
     91						     &count, process_stat_event, NULL));
     92
     93	return 0;
     94}
     95
     96static int process_stat_round_event(struct perf_tool *tool __maybe_unused,
     97				    union perf_event *event,
     98				    struct perf_sample *sample __maybe_unused,
     99				    struct machine *machine __maybe_unused)
    100{
    101	struct perf_record_stat_round *stat_round = &event->stat_round;
    102
    103	TEST_ASSERT_VAL("wrong time", stat_round->time == 0xdeadbeef);
    104	TEST_ASSERT_VAL("wrong type", stat_round->type == PERF_STAT_ROUND_TYPE__INTERVAL);
    105	return 0;
    106}
    107
    108static int test__synthesize_stat_round(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
    109{
    110	TEST_ASSERT_VAL("failed to synthesize stat_config",
    111		!perf_event__synthesize_stat_round(NULL, 0xdeadbeef, PERF_STAT_ROUND_TYPE__INTERVAL,
    112						   process_stat_round_event, NULL));
    113
    114	return 0;
    115}
    116
    117DEFINE_SUITE("Synthesize stat config", synthesize_stat_config);
    118DEFINE_SUITE("Synthesize stat", synthesize_stat);
    119DEFINE_SUITE("Synthesize stat round", synthesize_stat_round);