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Diffstat (limited to 'lib/libpmc/pmc.h')
| -rw-r--r-- | lib/libpmc/pmc.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/lib/libpmc/pmc.h b/lib/libpmc/pmc.h new file mode 100644 index 0000000..2be88b1 --- /dev/null +++ b/lib/libpmc/pmc.h @@ -0,0 +1,113 @@ +/*- + * 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. + * + * $FreeBSD$ + */ + +#ifndef _PMC_H_ +#define _PMC_H_ + +#include <sys/cdefs.h> +#include <sys/pmc.h> + +/* + * Driver statistics. + */ +struct pmc_driverstats { + int pm_intr_ignored; /* #interrupts ignored */ + int pm_intr_processed; /* #interrupts processed */ + int pm_intr_bufferfull; /* #interrupts with ENOSPC */ + int pm_syscalls; /* #syscalls */ + int pm_syscall_errors; /* #syscalls with errors */ + int pm_buffer_requests; /* #buffer requests */ + int pm_buffer_requests_failed; /* #failed buffer requests */ + 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); +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(uint32_t _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); +__END_DECLS + +#endif |
