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// SPDX-License-Identifier: GPL-2.0
#include <linux/err.h>
#include <linux/zalloc.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/param.h>
#include "evlist.h"
#include "evsel.h"
#include "parse-events.h"
#include "parse-events-hybrid.h"
#include "debug.h"
#include "pmu.h"
#include "pmu-hybrid.h"
#include "perf.h"
static void config_hybrid_attr(struct perf_event_attr *attr,
int type, int pmu_type)
{
/*
* attr.config layout for type PERF_TYPE_HARDWARE and
* PERF_TYPE_HW_CACHE
*
* PERF_TYPE_HARDWARE: 0xEEEEEEEE000000AA
* AA: hardware event ID
* EEEEEEEE: PMU type ID
* PERF_TYPE_HW_CACHE: 0xEEEEEEEE00DDCCBB
* BB: hardware cache ID
* CC: hardware cache op ID
* DD: hardware cache op result ID
* EEEEEEEE: PMU type ID
* If the PMU type ID is 0, the PERF_TYPE_RAW will be applied.
*/
attr->type = type;
attr->config = (attr->config & PERF_HW_EVENT_MASK) |
((__u64)pmu_type << PERF_PMU_TYPE_SHIFT);
}
static int create_event_hybrid(__u32 config_type, int *idx,
struct list_head *list,
struct perf_event_attr *attr, const char *name,
const char *metric_id,
struct list_head *config_terms,
struct perf_pmu *pmu)
{
struct evsel *evsel;
__u32 type = attr->type;
__u64 config = attr->config;
config_hybrid_attr(attr, config_type, pmu->type);
/*
* Some hybrid hardware cache events are only available on one CPU
* PMU. For example, the 'L1-dcache-load-misses' is only available
* on cpu_core, while the 'L1-icache-loads' is only available on
* cpu_atom. We need to remove "not supported" hybrid cache events.
*/
if (attr->type == PERF_TYPE_HW_CACHE
&& !is_event_supported(attr->type, attr->config))
return 0;
evsel = parse_events__add_event_hybrid(list, idx, attr, name, metric_id,
pmu, config_terms);
if (evsel) {
evsel->pmu_name = strdup(pmu->name);
if (!evsel->pmu_name)
return -ENOMEM;
} else
return -ENOMEM;
attr->type = type;
attr->config = config;
return 0;
}
static int pmu_cmp(struct parse_events_state *parse_state,
struct perf_pmu *pmu)
{
if (parse_state->evlist && parse_state->evlist->hybrid_pmu_name)
return strcmp(parse_state->evlist->hybrid_pmu_name, pmu->name);
if (parse_state->hybrid_pmu_name)
return strcmp(parse_state->hybrid_pmu_name, pmu->name);
return 0;
}
static int add_hw_hybrid(struct parse_events_state *parse_state,
struct list_head *list, struct perf_event_attr *attr,
const char *name, const char *metric_id,
struct list_head *config_terms)
{
struct perf_pmu *pmu;
int ret;
perf_pmu__for_each_hybrid_pmu(pmu) {
LIST_HEAD(terms);
if (pmu_cmp(parse_state, pmu))
continue;
copy_config_terms(&terms, config_terms);
ret = create_event_hybrid(PERF_TYPE_HARDWARE,
&parse_state->idx, list, attr, name,
metric_id, &terms, pmu);
free_config_terms(&terms);
if (ret)
return ret;
}
return 0;
}
static int create_raw_event_hybrid(int *idx, struct list_head *list,
struct perf_event_attr *attr,
const char *name,
const char *metric_id,
struct list_head *config_terms,
struct perf_pmu *pmu)
{
struct evsel *evsel;
attr->type = pmu->type;
evsel = parse_events__add_event_hybrid(list, idx, attr, name, metric_id,
pmu, config_terms);
if (evsel)
evsel->pmu_name = strdup(pmu->name);
else
return -ENOMEM;
return 0;
}
static int add_raw_hybrid(struct parse_events_state *parse_state,
struct list_head *list, struct perf_event_attr *attr,
const char *name, const char *metric_id,
struct list_head *config_terms)
{
struct perf_pmu *pmu;
int ret;
perf_pmu__for_each_hybrid_pmu(pmu) {
LIST_HEAD(terms);
if (pmu_cmp(parse_state, pmu))
continue;
copy_config_terms(&terms, config_terms);
ret = create_raw_event_hybrid(&parse_state->idx, list, attr,
name, metric_id, &terms, pmu);
free_config_terms(&terms);
if (ret)
return ret;
}
return 0;
}
int parse_events__add_numeric_hybrid(struct parse_events_state *parse_state,
struct list_head *list,
struct perf_event_attr *attr,
const char *name, const char *metric_id,
struct list_head *config_terms,
bool *hybrid)
{
*hybrid = false;
if (attr->type == PERF_TYPE_SOFTWARE)
return 0;
if (!perf_pmu__has_hybrid())
return 0;
*hybrid = true;
if (attr->type != PERF_TYPE_RAW) {
return add_hw_hybrid(parse_state, list, attr, name, metric_id,
config_terms);
}
return add_raw_hybrid(parse_state, list, attr, name, metric_id,
config_terms);
}
int parse_events__add_cache_hybrid(struct list_head *list, int *idx,
struct perf_event_attr *attr,
const char *name,
const char *metric_id,
struct list_head *config_terms,
bool *hybrid,
struct parse_events_state *parse_state)
{
struct perf_pmu *pmu;
int ret;
*hybrid = false;
if (!perf_pmu__has_hybrid())
return 0;
*hybrid = true;
perf_pmu__for_each_hybrid_pmu(pmu) {
LIST_HEAD(terms);
if (pmu_cmp(parse_state, pmu))
continue;
copy_config_terms(&terms, config_terms);
ret = create_event_hybrid(PERF_TYPE_HW_CACHE, idx, list,
attr, name, metric_id, &terms, pmu);
free_config_terms(&terms);
if (ret)
return ret;
}
return 0;
}
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