/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2003,2004 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _PMC_H_
#define _PMC_H_
#include <sys/cdefs.h>
#include <sys/types.h>
#include <sys/pmc.h>
/*
* Driver statistics.
*/
struct pmc_driverstats {
unsigned int pm_intr_ignored; /* #interrupts ignored */
unsigned int pm_intr_processed; /* #interrupts processed */
unsigned int pm_intr_bufferfull; /* #interrupts with ENOSPC */
unsigned int pm_syscalls; /* #syscalls */
unsigned int pm_syscall_errors; /* #syscalls with errors */
unsigned int pm_buffer_requests; /* #buffer requests */
unsigned int pm_buffer_requests_failed; /* #failed buffer requests */
unsigned int pm_log_sweeps; /* #sample buffer processing
passes */
};
/*
* CPU information.
*/
struct pmc_cpuinfo {
enum pmc_cputype pm_cputype; /* the kind of CPU */
uint32_t pm_ncpu; /* number of CPUs */
uint32_t pm_npmc; /* #PMCs per CPU */
uint32_t pm_nclass; /* #classes of PMCs */
struct pmc_classinfo pm_classes[PMC_CLASS_MAX];
};
/*
* Current PMC state.
*/
struct pmc_pmcinfo {
int32_t pm_cpu; /* CPU number */
struct pmc_info pm_pmcs[]; /* NPMC structs */
};
/*
* Prototypes
*/
__BEGIN_DECLS
int pmc_allocate(const char *_ctrspec, enum pmc_mode _mode, uint32_t _flags,
int _cpu, pmc_id_t *_pmcid, uint64_t count);
int pmc_attach(pmc_id_t _pmcid, pid_t _pid);
int pmc_capabilities(pmc_id_t _pmc, uint32_t *_caps);
int pmc_configure_logfile(int _fd);
int pmc_flush_logfile(void);
int pmc_close_logfile(void);
int pmc_detach(pmc_id_t _pmcid, pid_t _pid);
int pmc_disable(int _cpu, int _pmc);
int pmc_enable(int _cpu, int _pmc);
int pmc_get_driver_stats(struct pmc_driverstats *_gms);
int pmc_get_msr(pmc_id_t _pmc, uint32_t *_msr);
int pmc_init(void);
int pmc_read(pmc_id_t _pmc, pmc_value_t *_value);
int pmc_release(pmc_id_t _pmc);
int pmc_rw(pmc_id_t _pmc, pmc_value_t _newvalue, pmc_value_t *_oldvalue);
int pmc_set(pmc_id_t _pmc, pmc_value_t _value);
int pmc_start(pmc_id_t _pmc);
int pmc_stop(pmc_id_t _pmc);
int pmc_width(pmc_id_t _pmc, uint32_t *_width);
int pmc_write(pmc_id_t _pmc, pmc_value_t _value);
int pmc_writelog(uint32_t _udata);
int pmc_ncpu(void);
int pmc_npmc(int _cpu);
int pmc_cpuinfo(const struct pmc_cpuinfo **_cpu_info);
int pmc_pmcinfo(int _cpu, struct pmc_pmcinfo **_pmc_info);
const char *pmc_name_of_capability(enum pmc_caps _c);
const char *pmc_name_of_class(enum pmc_class _pc);
const char *pmc_name_of_cputype(enum pmc_cputype _cp);
const char *pmc_name_of_disposition(enum pmc_disp _pd);
const char *pmc_name_of_event(enum pmc_event _pe);
const char *pmc_name_of_mode(enum pmc_mode _pm);
const char *pmc_name_of_state(enum pmc_state _ps);
int pmc_event_names_of_class(enum pmc_class _cl, const char ***_eventnames,
int *_nevents);
int pmc_pmu_enabled(void);
void pmc_pmu_print_counters(const char *);
void pmc_pmu_print_counter_desc(const char *);
void pmc_pmu_print_counter_desc_long(const char *);
void pmc_pmu_print_counter_full(const char *);
uint64_t pmc_pmu_sample_rate_get(const char *);
int pmc_pmu_pmcallocate(const char *, struct pmc_op_pmcallocate *);
const char *pmc_pmu_event_get_by_idx(const char *, int idx);
int pmc_pmu_idx_get_by_event(const char*, const char *);
__END_DECLS
#endif
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