linux/arch/x86/events/msr.c

// SPDX-License-Identifier: GPL-2.0
#include <linux/perf_event.h>
#include <linux/sysfs.h>
#include <linux/nospec.h>
#include <asm/cpu_device_id.h>
#include "probe.h"

enum perf_msr_id { … };

static bool test_aperfmperf(int idx, void *data)
{ … }

static bool test_ptsc(int idx, void *data)
{ … }

static bool test_irperf(int idx, void *data)
{ … }

static bool test_therm_status(int idx, void *data)
{ … }

static bool test_intel(int idx, void *data)
{ … }

PMU_EVENT_ATTR_STRING(tsc,				attr_tsc,		"event=0x00"	);
PMU_EVENT_ATTR_STRING(aperf,				attr_aperf,		"event=0x01"	);
PMU_EVENT_ATTR_STRING(mperf,				attr_mperf,		"event=0x02"	);
PMU_EVENT_ATTR_STRING(pperf,				attr_pperf,		"event=0x03"	);
PMU_EVENT_ATTR_STRING(smi,				attr_smi,		"event=0x04"	);
PMU_EVENT_ATTR_STRING(ptsc,				attr_ptsc,		"event=0x05"	);
PMU_EVENT_ATTR_STRING(irperf,				attr_irperf,		"event=0x06"	);
PMU_EVENT_ATTR_STRING(cpu_thermal_margin,		attr_therm,		"event=0x07"	);
PMU_EVENT_ATTR_STRING(cpu_thermal_margin.snapshot,	attr_therm_snap,	"1"		);
PMU_EVENT_ATTR_STRING(cpu_thermal_margin.unit,		attr_therm_unit,	"C"		);

static unsigned long msr_mask;

PMU_EVENT_GROUP(…);
PMU_EVENT_GROUP(…);
PMU_EVENT_GROUP(…);
PMU_EVENT_GROUP(…);
PMU_EVENT_GROUP(…);
PMU_EVENT_GROUP(…);

static struct attribute *attrs_therm[] = …;

static struct attribute_group group_therm = …;

static struct perf_msr msr[] = …;

static struct attribute *events_attrs[] = …;

static struct attribute_group events_attr_group = …;

PMU_FORMAT_ATTR(…);
static struct attribute *format_attrs[] = …;
static struct attribute_group format_attr_group = …;

static const struct attribute_group *attr_groups[] = …;

static const struct attribute_group *attr_update[] = …;

static int msr_event_init(struct perf_event *event)
{ … }

static inline u64 msr_read_counter(struct perf_event *event)
{ … }

static void msr_event_update(struct perf_event *event)
{ … }

static void msr_event_start(struct perf_event *event, int flags)
{ … }

static void msr_event_stop(struct perf_event *event, int flags)
{ … }

static void msr_event_del(struct perf_event *event, int flags)
{ … }

static int msr_event_add(struct perf_event *event, int flags)
{ … }

static struct pmu pmu_msr = …;

static int __init msr_init(void)
{ … }
device_initcall(msr_init);