/*- * Copyright (c) 2003-2008 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. */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "libpmcinternal.h" /* Function prototypes */ #if defined(__i386__) static int k7_allocate_pmc(enum pmc_event _pe, char *_ctrspec, struct pmc_op_pmcallocate *_pmc_config); #endif #if defined(__amd64__) || defined(__i386__) static int iaf_allocate_pmc(enum pmc_event _pe, char *_ctrspec, struct pmc_op_pmcallocate *_pmc_config); static int iap_allocate_pmc(enum pmc_event _pe, char *_ctrspec, struct pmc_op_pmcallocate *_pmc_config); static int ucf_allocate_pmc(enum pmc_event _pe, char *_ctrspec, struct pmc_op_pmcallocate *_pmc_config); static int ucp_allocate_pmc(enum pmc_event _pe, char *_ctrspec, struct pmc_op_pmcallocate *_pmc_config); static int k8_allocate_pmc(enum pmc_event _pe, char *_ctrspec, struct pmc_op_pmcallocate *_pmc_config); static int p4_allocate_pmc(enum pmc_event _pe, char *_ctrspec, struct pmc_op_pmcallocate *_pmc_config); #endif #if defined(__i386__) static int p5_allocate_pmc(enum pmc_event _pe, char *_ctrspec, struct pmc_op_pmcallocate *_pmc_config); static int p6_allocate_pmc(enum pmc_event _pe, char *_ctrspec, struct pmc_op_pmcallocate *_pmc_config); #endif #if defined(__amd64__) || defined(__i386__) static int tsc_allocate_pmc(enum pmc_event _pe, char *_ctrspec, struct pmc_op_pmcallocate *_pmc_config); #endif #if defined(__arm__) #if defined(__XSCALE__) static int xscale_allocate_pmc(enum pmc_event _pe, char *_ctrspec, struct pmc_op_pmcallocate *_pmc_config); #endif static int armv7_allocate_pmc(enum pmc_event _pe, char *_ctrspec, struct pmc_op_pmcallocate *_pmc_config); #endif #if defined(__mips__) static int mips_allocate_pmc(enum pmc_event _pe, char* ctrspec, struct pmc_op_pmcallocate *_pmc_config); #endif /* __mips__ */ static int soft_allocate_pmc(enum pmc_event _pe, char *_ctrspec, struct pmc_op_pmcallocate *_pmc_config); #if defined(__powerpc__) static int powerpc_allocate_pmc(enum pmc_event _pe, char* ctrspec, struct pmc_op_pmcallocate *_pmc_config); #endif /* __powerpc__ */ #define PMC_CALL(cmd, params) \ syscall(pmc_syscall, PMC_OP_##cmd, (params)) /* * Event aliases provide a way for the user to ask for generic events * like "cache-misses", or "instructions-retired". These aliases are * mapped to the appropriate canonical event descriptions using a * lookup table. */ struct pmc_event_alias { const char *pm_alias; const char *pm_spec; }; static const struct pmc_event_alias *pmc_mdep_event_aliases; /* * The pmc_event_descr structure maps symbolic names known to the user * to integer codes used by the PMC KLD. */ struct pmc_event_descr { const char *pm_ev_name; enum pmc_event pm_ev_code; }; /* * The pmc_class_descr structure maps class name prefixes for * event names to event tables and other PMC class data. */ struct pmc_class_descr { const char *pm_evc_name; size_t pm_evc_name_size; enum pmc_class pm_evc_class; const struct pmc_event_descr *pm_evc_event_table; size_t pm_evc_event_table_size; int (*pm_evc_allocate_pmc)(enum pmc_event _pe, char *_ctrspec, struct pmc_op_pmcallocate *_pa); }; #define PMC_TABLE_SIZE(N) (sizeof(N)/sizeof(N[0])) #define PMC_EVENT_TABLE_SIZE(N) PMC_TABLE_SIZE(N##_event_table) #undef __PMC_EV #define __PMC_EV(C,N) { #N, PMC_EV_ ## C ## _ ## N }, /* * PMC_CLASSDEP_TABLE(NAME, CLASS) * * Define a table mapping event names and aliases to HWPMC event IDs. */ #define PMC_CLASSDEP_TABLE(N, C) \ static const struct pmc_event_descr N##_event_table[] = \ { \ __PMC_EV_##C() \ } PMC_CLASSDEP_TABLE(iaf, IAF); PMC_CLASSDEP_TABLE(k7, K7); PMC_CLASSDEP_TABLE(k8, K8); PMC_CLASSDEP_TABLE(p4, P4); PMC_CLASSDEP_TABLE(p5, P5); PMC_CLASSDEP_TABLE(p6, P6); PMC_CLASSDEP_TABLE(xscale, XSCALE); PMC_CLASSDEP_TABLE(armv7, ARMV7); PMC_CLASSDEP_TABLE(mips24k, MIPS24K); PMC_CLASSDEP_TABLE(octeon, OCTEON); PMC_CLASSDEP_TABLE(ucf, UCF); PMC_CLASSDEP_TABLE(ppc7450, PPC7450); PMC_CLASSDEP_TABLE(ppc970, PPC970); static struct pmc_event_descr soft_event_table[PMC_EV_DYN_COUNT]; #undef __PMC_EV_ALIAS #define __PMC_EV_ALIAS(N,CODE) { N, PMC_EV_##CODE }, static const struct pmc_event_descr atom_event_table[] = { __PMC_EV_ALIAS_ATOM() }; static const struct pmc_event_descr atom_silvermont_event_table[] = { __PMC_EV_ALIAS_ATOM_SILVERMONT() }; static const struct pmc_event_descr core_event_table[] = { __PMC_EV_ALIAS_CORE() }; static const struct pmc_event_descr core2_event_table[] = { __PMC_EV_ALIAS_CORE2() }; static const struct pmc_event_descr corei7_event_table[] = { __PMC_EV_ALIAS_COREI7() }; static const struct pmc_event_descr nehalem_ex_event_table[] = { __PMC_EV_ALIAS_COREI7() }; static const struct pmc_event_descr haswell_event_table[] = { __PMC_EV_ALIAS_HASWELL() }; static const struct pmc_event_descr haswell_xeon_event_table[] = { __PMC_EV_ALIAS_HASWELL_XEON() }; static const struct pmc_event_descr ivybridge_event_table[] = { __PMC_EV_ALIAS_IVYBRIDGE() }; static const struct pmc_event_descr ivybridge_xeon_event_table[] = { __PMC_EV_ALIAS_IVYBRIDGE_XEON() }; static const struct pmc_event_descr sandybridge_event_table[] = { __PMC_EV_ALIAS_SANDYBRIDGE() }; static const struct pmc_event_descr sandybridge_xeon_event_table[] = { __PMC_EV_ALIAS_SANDYBRIDGE_XEON() }; static const struct pmc_event_descr westmere_event_table[] = { __PMC_EV_ALIAS_WESTMERE() }; static const struct pmc_event_descr westmere_ex_event_table[] = { __PMC_EV_ALIAS_WESTMERE() }; static const struct pmc_event_descr corei7uc_event_table[] = { __PMC_EV_ALIAS_COREI7UC() }; static const struct pmc_event_descr haswelluc_event_table[] = { __PMC_EV_ALIAS_HASWELLUC() }; static const struct pmc_event_descr sandybridgeuc_event_table[] = { __PMC_EV_ALIAS_SANDYBRIDGEUC() }; static const struct pmc_event_descr westmereuc_event_table[] = { __PMC_EV_ALIAS_WESTMEREUC() }; /* * PMC_MDEP_TABLE(NAME, PRIMARYCLASS, ADDITIONAL_CLASSES...) * * Map a CPU to the PMC classes it supports. */ #define PMC_MDEP_TABLE(N,C,...) \ static const enum pmc_class N##_pmc_classes[] = { \ PMC_CLASS_##C, __VA_ARGS__ \ } PMC_MDEP_TABLE(atom, IAP, PMC_CLASS_SOFT, PMC_CLASS_IAF, PMC_CLASS_TSC); PMC_MDEP_TABLE(atom_silvermont, IAP, PMC_CLASS_SOFT, PMC_CLASS_IAF, PMC_CLASS_TSC); PMC_MDEP_TABLE(core, IAP, PMC_CLASS_SOFT, PMC_CLASS_TSC); PMC_MDEP_TABLE(core2, IAP, PMC_CLASS_SOFT, PMC_CLASS_IAF, PMC_CLASS_TSC); PMC_MDEP_TABLE(corei7, IAP, PMC_CLASS_SOFT, PMC_CLASS_IAF, PMC_CLASS_TSC, PMC_CLASS_UCF, PMC_CLASS_UCP); PMC_MDEP_TABLE(nehalem_ex, IAP, PMC_CLASS_SOFT, PMC_CLASS_IAF, PMC_CLASS_TSC); PMC_MDEP_TABLE(haswell, IAP, PMC_CLASS_SOFT, PMC_CLASS_IAF, PMC_CLASS_TSC, PMC_CLASS_UCF, PMC_CLASS_UCP); PMC_MDEP_TABLE(haswell_xeon, IAP, PMC_CLASS_SOFT, PMC_CLASS_IAF, PMC_CLASS_TSC, PMC_CLASS_UCF, PMC_CLASS_UCP); PMC_MDEP_TABLE(ivybridge, IAP, PMC_CLASS_SOFT, PMC_CLASS_IAF, PMC_CLASS_TSC); PMC_MDEP_TABLE(ivybridge_xeon, IAP, PMC_CLASS_SOFT, PMC_CLASS_IAF, PMC_CLASS_TSC); PMC_MDEP_TABLE(sandybridge, IAP, PMC_CLASS_SOFT, PMC_CLASS_IAF, PMC_CLASS_TSC, PMC_CLASS_UCF, PMC_CLASS_UCP); PMC_MDEP_TABLE(sandybridge_xeon, IAP, PMC_CLASS_SOFT, PMC_CLASS_IAF, PMC_CLASS_TSC); PMC_MDEP_TABLE(westmere, IAP, PMC_CLASS_SOFT, PMC_CLASS_IAF, PMC_CLASS_TSC, PMC_CLASS_UCF, PMC_CLASS_UCP); PMC_MDEP_TABLE(westmere_ex, IAP, PMC_CLASS_SOFT, PMC_CLASS_IAF, PMC_CLASS_TSC); PMC_MDEP_TABLE(k7, K7, PMC_CLASS_SOFT, PMC_CLASS_TSC); PMC_MDEP_TABLE(k8, K8, PMC_CLASS_SOFT, PMC_CLASS_TSC); PMC_MDEP_TABLE(p4, P4, PMC_CLASS_SOFT, PMC_CLASS_TSC); PMC_MDEP_TABLE(p5, P5, PMC_CLASS_SOFT, PMC_CLASS_TSC); PMC_MDEP_TABLE(p6, P6, PMC_CLASS_SOFT, PMC_CLASS_TSC); PMC_MDEP_TABLE(xscale, XSCALE, PMC_CLASS_SOFT, PMC_CLASS_XSCALE); PMC_MDEP_TABLE(armv7, ARMV7, PMC_CLASS_SOFT, PMC_CLASS_ARMV7); PMC_MDEP_TABLE(mips24k, MIPS24K, PMC_CLASS_SOFT, PMC_CLASS_MIPS24K); PMC_MDEP_TABLE(octeon, OCTEON, PMC_CLASS_SOFT, PMC_CLASS_OCTEON); PMC_MDEP_TABLE(ppc7450, PPC7450, PMC_CLASS_SOFT, PMC_CLASS_PPC7450); PMC_MDEP_TABLE(ppc970, PPC970, PMC_CLASS_SOFT, PMC_CLASS_PPC970); PMC_MDEP_TABLE(generic, SOFT, PMC_CLASS_SOFT); static const struct pmc_event_descr tsc_event_table[] = { __PMC_EV_TSC() }; #undef PMC_CLASS_TABLE_DESC #define PMC_CLASS_TABLE_DESC(NAME, CLASS, EVENTS, ALLOCATOR) \ static const struct pmc_class_descr NAME##_class_table_descr = \ { \ .pm_evc_name = #CLASS "-", \ .pm_evc_name_size = sizeof(#CLASS "-") - 1, \ .pm_evc_class = PMC_CLASS_##CLASS , \ .pm_evc_event_table = EVENTS##_event_table , \ .pm_evc_event_table_size = \ PMC_EVENT_TABLE_SIZE(EVENTS), \ .pm_evc_allocate_pmc = ALLOCATOR##_allocate_pmc \ } #if defined(__i386__) || defined(__amd64__) PMC_CLASS_TABLE_DESC(iaf, IAF, iaf, iaf); PMC_CLASS_TABLE_DESC(atom, IAP, atom, iap); PMC_CLASS_TABLE_DESC(atom_silvermont, IAP, atom_silvermont, iap); PMC_CLASS_TABLE_DESC(core, IAP, core, iap); PMC_CLASS_TABLE_DESC(core2, IAP, core2, iap); PMC_CLASS_TABLE_DESC(corei7, IAP, corei7, iap); PMC_CLASS_TABLE_DESC(nehalem_ex, IAP, nehalem_ex, iap); PMC_CLASS_TABLE_DESC(haswell, IAP, haswell, iap); PMC_CLASS_TABLE_DESC(haswell_xeon, IAP, haswell, iap); PMC_CLASS_TABLE_DESC(ivybridge, IAP, ivybridge, iap); PMC_CLASS_TABLE_DESC(ivybridge_xeon, IAP, ivybridge_xeon, iap); PMC_CLASS_TABLE_DESC(sandybridge, IAP, sandybridge, iap); PMC_CLASS_TABLE_DESC(sandybridge_xeon, IAP, sandybridge_xeon, iap); PMC_CLASS_TABLE_DESC(westmere, IAP, westmere, iap); PMC_CLASS_TABLE_DESC(westmere_ex, IAP, westmere_ex, iap); PMC_CLASS_TABLE_DESC(ucf, UCF, ucf, ucf); PMC_CLASS_TABLE_DESC(corei7uc, UCP, corei7uc, ucp); PMC_CLASS_TABLE_DESC(haswelluc, UCP, haswelluc, ucp); PMC_CLASS_TABLE_DESC(sandybridgeuc, UCP, sandybridgeuc, ucp); PMC_CLASS_TABLE_DESC(westmereuc, UCP, westmereuc, ucp); #endif #if defined(__i386__) PMC_CLASS_TABLE_DESC(k7, K7, k7, k7); #endif #if defined(__i386__) || defined(__amd64__) PMC_CLASS_TABLE_DESC(k8, K8, k8, k8); PMC_CLASS_TABLE_DESC(p4, P4, p4, p4); #endif #if defined(__i386__) PMC_CLASS_TABLE_DESC(p5, P5, p5, p5); PMC_CLASS_TABLE_DESC(p6, P6, p6, p6); #endif #if defined(__i386__) || defined(__amd64__) PMC_CLASS_TABLE_DESC(tsc, TSC, tsc, tsc); #endif #if defined(__arm__) #if defined(__XSCALE__) PMC_CLASS_TABLE_DESC(xscale, XSCALE, xscale, xscale); #endif PMC_CLASS_TABLE_DESC(armv7, ARMV7, armv7, armv7); #endif #if defined(__mips__) PMC_CLASS_TABLE_DESC(mips24k, MIPS24K, mips24k, mips); PMC_CLASS_TABLE_DESC(octeon, OCTEON, octeon, mips); #endif /* __mips__ */ #if defined(__powerpc__) PMC_CLASS_TABLE_DESC(ppc7450, PPC7450, ppc7450, powerpc); PMC_CLASS_TABLE_DESC(ppc970, PPC970, ppc970, powerpc); #endif static struct pmc_class_descr soft_class_table_descr = { .pm_evc_name = "SOFT-", .pm_evc_name_size = sizeof("SOFT-") - 1, .pm_evc_class = PMC_CLASS_SOFT, .pm_evc_event_table = NULL, .pm_evc_event_table_size = 0, .pm_evc_allocate_pmc = soft_allocate_pmc }; #undef PMC_CLASS_TABLE_DESC static const struct pmc_class_descr **pmc_class_table; #define PMC_CLASS_TABLE_SIZE cpu_info.pm_nclass static const enum pmc_class *pmc_mdep_class_list; static size_t pmc_mdep_class_list_size; /* * Mapping tables, mapping enumeration values to human readable * strings. */ static const char * pmc_capability_names[] = { #undef __PMC_CAP #define __PMC_CAP(N,V,D) #N , __PMC_CAPS() }; static const char * pmc_class_names[] = { #undef __PMC_CLASS #define __PMC_CLASS(C) #C , __PMC_CLASSES() }; struct pmc_cputype_map { enum pmc_cputype pm_cputype; const char *pm_name; }; static const struct pmc_cputype_map pmc_cputype_names[] = { #undef __PMC_CPU #define __PMC_CPU(S, V, D) { .pm_cputype = PMC_CPU_##S, .pm_name = #S } , __PMC_CPUS() }; static const char * pmc_disposition_names[] = { #undef __PMC_DISP #define __PMC_DISP(D) #D , __PMC_DISPOSITIONS() }; static const char * pmc_mode_names[] = { #undef __PMC_MODE #define __PMC_MODE(M,N) #M , __PMC_MODES() }; static const char * pmc_state_names[] = { #undef __PMC_STATE #define __PMC_STATE(S) #S , __PMC_STATES() }; /* * Filled in by pmc_init(). */ static int pmc_syscall = -1; static struct pmc_cpuinfo cpu_info; static struct pmc_op_getdyneventinfo soft_event_info; /* Event masks for events */ struct pmc_masks { const char *pm_name; const uint64_t pm_value; }; #define PMCMASK(N,V) { .pm_name = #N, .pm_value = (V) } #define NULLMASK { .pm_name = NULL } #if defined(__amd64__) || defined(__i386__) static int pmc_parse_mask(const struct pmc_masks *pmask, char *p, uint64_t *evmask) { const struct pmc_masks *pm; char *q, *r; int c; if (pmask == NULL) /* no mask keywords */ return (-1); q = strchr(p, '='); /* skip '=' */ if (*++q == '\0') /* no more data */ return (-1); c = 0; /* count of mask keywords seen */ while ((r = strsep(&q, "+")) != NULL) { for (pm = pmask; pm->pm_name && strcasecmp(r, pm->pm_name); pm++) ; if (pm->pm_name == NULL) /* not found */ return (-1); *evmask |= pm->pm_value; c++; } return (c); } #endif #define KWMATCH(p,kw) (strcasecmp((p), (kw)) == 0) #define KWPREFIXMATCH(p,kw) (strncasecmp((p), (kw), sizeof((kw)) - 1) == 0) #define EV_ALIAS(N,S) { .pm_alias = N, .pm_spec = S } #if defined(__i386__) /* * AMD K7 (Athlon) CPUs. */ static struct pmc_event_alias k7_aliases[] = { EV_ALIAS("branches", "k7-retired-branches"), EV_ALIAS("branch-mispredicts", "k7-retired-branches-mispredicted"), EV_ALIAS("cycles", "tsc"), EV_ALIAS("dc-misses", "k7-dc-misses"), EV_ALIAS("ic-misses", "k7-ic-misses"), EV_ALIAS("instructions", "k7-retired-instructions"), EV_ALIAS("interrupts", "k7-hardware-interrupts"), EV_ALIAS(NULL, NULL) }; #define K7_KW_COUNT "count" #define K7_KW_EDGE "edge" #define K7_KW_INV "inv" #define K7_KW_OS "os" #define K7_KW_UNITMASK "unitmask" #define K7_KW_USR "usr" static int k7_allocate_pmc(enum pmc_event pe, char *ctrspec, struct pmc_op_pmcallocate *pmc_config) { char *e, *p, *q; int c, has_unitmask; uint32_t count, unitmask; pmc_config->pm_md.pm_amd.pm_amd_config = 0; pmc_config->pm_caps |= (PMC_CAP_READ | PMC_CAP_WRITE); if (pe == PMC_EV_K7_DC_REFILLS_FROM_L2 || pe == PMC_EV_K7_DC_REFILLS_FROM_SYSTEM || pe == PMC_EV_K7_DC_WRITEBACKS) { has_unitmask = 1; unitmask = AMD_PMC_UNITMASK_MOESI; } else unitmask = has_unitmask = 0; while ((p = strsep(&ctrspec, ",")) != NULL) { if (KWPREFIXMATCH(p, K7_KW_COUNT "=")) { q = strchr(p, '='); if (*++q == '\0') /* skip '=' */ return (-1); count = strtol(q, &e, 0); if (e == q || *e != '\0') return (-1); pmc_config->pm_caps |= PMC_CAP_THRESHOLD; pmc_config->pm_md.pm_amd.pm_amd_config |= AMD_PMC_TO_COUNTER(count); } else if (KWMATCH(p, K7_KW_EDGE)) { pmc_config->pm_caps |= PMC_CAP_EDGE; } else if (KWMATCH(p, K7_KW_INV)) { pmc_config->pm_caps |= PMC_CAP_INVERT; } else if (KWMATCH(p, K7_KW_OS)) { pmc_config->pm_caps |= PMC_CAP_SYSTEM; } else if (KWPREFIXMATCH(p, K7_KW_UNITMASK "=")) { if (has_unitmask == 0) return (-1); unitmask = 0; q = strchr(p, '='); if (*++q == '\0') /* skip '=' */ return (-1); while ((c = tolower(*q++)) != 0) if (c == 'm') unitmask |= AMD_PMC_UNITMASK_M; else if (c == 'o') unitmask |= AMD_PMC_UNITMASK_O; else if (c == 'e') unitmask |= AMD_PMC_UNITMASK_E; else if (c == 's') unitmask |= AMD_PMC_UNITMASK_S; else if (c == 'i') unitmask |= AMD_PMC_UNITMASK_I; else if (c == '+') continue; else return (-1); if (unitmask == 0) return (-1); } else if (KWMATCH(p, K7_KW_USR)) { pmc_config->pm_caps |= PMC_CAP_USER; } else return (-1); } if (has_unitmask) { pmc_config->pm_caps |= PMC_CAP_QUALIFIER; pmc_config->pm_md.pm_amd.pm_amd_config |= AMD_PMC_TO_UNITMASK(unitmask); } return (0); } #endif #if defined(__amd64__) || defined(__i386__) /* * Intel Core (Family 6, Model E) PMCs. */ static struct pmc_event_alias core_aliases[] = { EV_ALIAS("branches", "iap-br-instr-ret"), EV_ALIAS("branch-mispredicts", "iap-br-mispred-ret"), EV_ALIAS("cycles", "tsc-tsc"), EV_ALIAS("ic-misses", "iap-icache-misses"), EV_ALIAS("instructions", "iap-instr-ret"), EV_ALIAS("interrupts", "iap-core-hw-int-rx"), EV_ALIAS("unhalted-cycles", "iap-unhalted-core-cycles"), EV_ALIAS(NULL, NULL) }; /* * Intel Core2 (Family 6, Model F), Core2Extreme (Family 6, Model 17H) * and Atom (Family 6, model 1CH) PMCs. * * We map aliases to events on the fixed-function counters if these * are present. Note that not all CPUs in this family contain fixed-function * counters. */ static struct pmc_event_alias core2_aliases[] = { EV_ALIAS("branches", "iap-br-inst-retired.any"), EV_ALIAS("branch-mispredicts", "iap-br-inst-retired.mispred"), EV_ALIAS("cycles", "tsc-tsc"), EV_ALIAS("ic-misses", "iap-l1i-misses"), EV_ALIAS("instructions", "iaf-instr-retired.any"), EV_ALIAS("interrupts", "iap-hw-int-rcv"), EV_ALIAS("unhalted-cycles", "iaf-cpu-clk-unhalted.core"), EV_ALIAS(NULL, NULL) }; static struct pmc_event_alias core2_aliases_without_iaf[] = { EV_ALIAS("branches", "iap-br-inst-retired.any"), EV_ALIAS("branch-mispredicts", "iap-br-inst-retired.mispred"), EV_ALIAS("cycles", "tsc-tsc"), EV_ALIAS("ic-misses", "iap-l1i-misses"), EV_ALIAS("instructions", "iap-inst-retired.any_p"), EV_ALIAS("interrupts", "iap-hw-int-rcv"), EV_ALIAS("unhalted-cycles", "iap-cpu-clk-unhalted.core_p"), EV_ALIAS(NULL, NULL) }; #define atom_aliases core2_aliases #define atom_aliases_without_iaf core2_aliases_without_iaf #define atom_silvermont_aliases core2_aliases #define atom_silvermont_aliases_without_iaf core2_aliases_without_iaf #define corei7_aliases core2_aliases #define corei7_aliases_without_iaf core2_aliases_without_iaf #define nehalem_ex_aliases core2_aliases #define nehalem_ex_aliases_without_iaf core2_aliases_without_iaf #define haswell_aliases core2_aliases #define haswell_aliases_without_iaf core2_aliases_without_iaf #define haswell_xeon_aliases core2_aliases #define haswell_xeon_aliases_without_iaf core2_aliases_without_iaf #define ivybridge_aliases core2_aliases #define ivybridge_aliases_without_iaf core2_aliases_without_iaf #define ivybridge_xeon_aliases core2_aliases #define ivybridge_xeon_aliases_without_iaf core2_aliases_without_iaf #define sandybridge_aliases core2_aliases #define sandybridge_aliases_without_iaf core2_aliases_without_iaf #define sandybridge_xeon_aliases core2_aliases #define sandybridge_xeon_aliases_without_iaf core2_aliases_without_iaf #define westmere_aliases core2_aliases #define westmere_aliases_without_iaf core2_aliases_without_iaf #define westmere_ex_aliases core2_aliases #define westmere_ex_aliases_without_iaf core2_aliases_without_iaf #define IAF_KW_OS "os" #define IAF_KW_USR "usr" #define IAF_KW_ANYTHREAD "anythread" /* * Parse an event specifier for Intel fixed function counters. */ static int iaf_allocate_pmc(enum pmc_event pe, char *ctrspec, struct pmc_op_pmcallocate *pmc_config) { char *p; (void) pe; pmc_config->pm_caps |= (PMC_CAP_READ | PMC_CAP_WRITE); pmc_config->pm_md.pm_iaf.pm_iaf_flags = 0; while ((p = strsep(&ctrspec, ",")) != NULL) { if (KWMATCH(p, IAF_KW_OS)) pmc_config->pm_caps |= PMC_CAP_SYSTEM; else if (KWMATCH(p, IAF_KW_USR)) pmc_config->pm_caps |= PMC_CAP_USER; else if (KWMATCH(p, IAF_KW_ANYTHREAD)) pmc_config->pm_md.pm_iaf.pm_iaf_flags |= IAF_ANY; else return (-1); } return (0); } /* * Core/Core2 support. */ #define IAP_KW_AGENT "agent" #define IAP_KW_ANYTHREAD "anythread" #define IAP_KW_CACHESTATE "cachestate" #define IAP_KW_CMASK "cmask" #define IAP_KW_CORE "core" #define IAP_KW_EDGE "edge" #define IAP_KW_INV "inv" #define IAP_KW_OS "os" #define IAP_KW_PREFETCH "prefetch" #define IAP_KW_SNOOPRESPONSE "snoopresponse" #define IAP_KW_SNOOPTYPE "snooptype" #define IAP_KW_TRANSITION "trans" #define IAP_KW_USR "usr" #define IAP_KW_RSP "rsp" static struct pmc_masks iap_core_mask[] = { PMCMASK(all, (0x3 << 14)), PMCMASK(this, (0x1 << 14)), NULLMASK }; static struct pmc_masks iap_agent_mask[] = { PMCMASK(this, 0), PMCMASK(any, (0x1 << 13)), NULLMASK }; static struct pmc_masks iap_prefetch_mask[] = { PMCMASK(both, (0x3 << 12)), PMCMASK(only, (0x1 << 12)), PMCMASK(exclude, 0), NULLMASK }; static struct pmc_masks iap_cachestate_mask[] = { PMCMASK(i, (1 << 8)), PMCMASK(s, (1 << 9)), PMCMASK(e, (1 << 10)), PMCMASK(m, (1 << 11)), NULLMASK }; static struct pmc_masks iap_snoopresponse_mask[] = { PMCMASK(clean, (1 << 8)), PMCMASK(hit, (1 << 9)), PMCMASK(hitm, (1 << 11)), NULLMASK }; static struct pmc_masks iap_snooptype_mask[] = { PMCMASK(cmp2s, (1 << 8)), PMCMASK(cmp2i, (1 << 9)), NULLMASK }; static struct pmc_masks iap_transition_mask[] = { PMCMASK(any, 0x00), PMCMASK(frequency, 0x10), NULLMASK }; static struct pmc_masks iap_rsp_mask_i7_wm[] = { PMCMASK(DMND_DATA_RD, (1 << 0)), PMCMASK(DMND_RFO, (1 << 1)), PMCMASK(DMND_IFETCH, (1 << 2)), PMCMASK(WB, (1 << 3)), PMCMASK(PF_DATA_RD, (1 << 4)), PMCMASK(PF_RFO, (1 << 5)), PMCMASK(PF_IFETCH, (1 << 6)), PMCMASK(OTHER, (1 << 7)), PMCMASK(UNCORE_HIT, (1 << 8)), PMCMASK(OTHER_CORE_HIT_SNP, (1 << 9)), PMCMASK(OTHER_CORE_HITM, (1 << 10)), PMCMASK(REMOTE_CACHE_FWD, (1 << 12)), PMCMASK(REMOTE_DRAM, (1 << 13)), PMCMASK(LOCAL_DRAM, (1 << 14)), PMCMASK(NON_DRAM, (1 << 15)), NULLMASK }; static struct pmc_masks iap_rsp_mask_sb_sbx_ib[] = { PMCMASK(REQ_DMND_DATA_RD, (1ULL << 0)), PMCMASK(REQ_DMND_RFO, (1ULL << 1)), PMCMASK(REQ_DMND_IFETCH, (1ULL << 2)), PMCMASK(REQ_WB, (1ULL << 3)), PMCMASK(REQ_PF_DATA_RD, (1ULL << 4)), PMCMASK(REQ_PF_RFO, (1ULL << 5)), PMCMASK(REQ_PF_IFETCH, (1ULL << 6)), PMCMASK(REQ_PF_LLC_DATA_RD, (1ULL << 7)), PMCMASK(REQ_PF_LLC_RFO, (1ULL << 8)), PMCMASK(REQ_PF_LLC_IFETCH, (1ULL << 9)), PMCMASK(REQ_BUS_LOCKS, (1ULL << 10)), PMCMASK(REQ_STRM_ST, (1ULL << 11)), PMCMASK(REQ_OTHER, (1ULL << 15)), PMCMASK(RES_ANY, (1ULL << 16)), PMCMASK(RES_SUPPLIER_SUPP, (1ULL << 17)), PMCMASK(RES_SUPPLIER_LLC_HITM, (1ULL << 18)), PMCMASK(RES_SUPPLIER_LLC_HITE, (1ULL << 19)), PMCMASK(RES_SUPPLIER_LLC_HITS, (1ULL << 20)), PMCMASK(RES_SUPPLIER_LLC_HITF, (1ULL << 21)), PMCMASK(RES_SUPPLIER_LOCAL, (1ULL << 22)), PMCMASK(RES_SNOOP_SNP_NONE, (1ULL << 31)), PMCMASK(RES_SNOOP_SNP_NO_NEEDED,(1ULL << 32)), PMCMASK(RES_SNOOP_SNP_MISS, (1ULL << 33)), PMCMASK(RES_SNOOP_HIT_NO_FWD, (1ULL << 34)), PMCMASK(RES_SNOOP_HIT_FWD, (1ULL << 35)), PMCMASK(RES_SNOOP_HITM, (1ULL << 36)), PMCMASK(RES_NON_DRAM, (1ULL << 37)), NULLMASK }; static struct pmc_masks iap_rsp_mask_haswell[] = { PMCMASK(REQ_DMND_DATA_RD, (1ULL << 0)), PMCMASK(REQ_DMND_RFO, (1ULL << 1)), PMCMASK(REQ_DMND_IFETCH, (1ULL << 2)), PMCMASK(REQ_PF_DATA_RD, (1ULL << 4)), PMCMASK(REQ_PF_RFO, (1ULL << 5)), PMCMASK(REQ_PF_IFETCH, (1ULL << 6)), PMCMASK(REQ_OTHER, (1ULL << 15)), PMCMASK(RES_ANY, (1ULL << 16)), PMCMASK(RES_SUPPLIER_SUPP, (1ULL << 17)), PMCMASK(RES_SUPPLIER_LLC_HITM, (1ULL << 18)), PMCMASK(RES_SUPPLIER_LLC_HITE, (1ULL << 19)), PMCMASK(RES_SUPPLIER_LLC_HITS, (1ULL << 20)), PMCMASK(RES_SUPPLIER_LLC_HITF, (1ULL << 21)), PMCMASK(RES_SUPPLIER_LOCAL, (1ULL << 22)), PMCMASK(RES_SNOOP_SNP_NONE, (1ULL << 31)), PMCMASK(RES_SNOOP_SNP_NO_NEEDED,(1ULL << 32)), PMCMASK(RES_SNOOP_SNP_MISS, (1ULL << 33)), PMCMASK(RES_SNOOP_HIT_NO_FWD, (1ULL << 34)), PMCMASK(RES_SNOOP_HIT_FWD, (1ULL << 35)), PMCMASK(RES_SNOOP_HITM, (1ULL << 36)), PMCMASK(RES_NON_DRAM, (1ULL << 37)), NULLMASK }; static int iap_allocate_pmc(enum pmc_event pe, char *ctrspec, struct pmc_op_pmcallocate *pmc_config) { char *e, *p, *q; uint64_t cachestate, evmask, rsp; int count, n; pmc_config->pm_caps |= (PMC_CAP_READ | PMC_CAP_WRITE | PMC_CAP_QUALIFIER); pmc_config->pm_md.pm_iap.pm_iap_config = 0; cachestate = evmask = rsp = 0; /* Parse additional modifiers if present */ while ((p = strsep(&ctrspec, ",")) != NULL) { n = 0; if (KWPREFIXMATCH(p, IAP_KW_CMASK "=")) { q = strchr(p, '='); if (*++q == '\0') /* skip '=' */ return (-1); count = strtol(q, &e, 0); if (e == q || *e != '\0') return (-1); pmc_config->pm_caps |= PMC_CAP_THRESHOLD; pmc_config->pm_md.pm_iap.pm_iap_config |= IAP_CMASK(count); } else if (KWMATCH(p, IAP_KW_EDGE)) { pmc_config->pm_caps |= PMC_CAP_EDGE; } else if (KWMATCH(p, IAP_KW_INV)) { pmc_config->pm_caps |= PMC_CAP_INVERT; } else if (KWMATCH(p, IAP_KW_OS)) { pmc_config->pm_caps |= PMC_CAP_SYSTEM; } else if (KWMATCH(p, IAP_KW_USR)) { pmc_config->pm_caps |= PMC_CAP_USER; } else if (KWMATCH(p, IAP_KW_ANYTHREAD)) { pmc_config->pm_md.pm_iap.pm_iap_config |= IAP_ANY; } else if (KWPREFIXMATCH(p, IAP_KW_CORE "=")) { n = pmc_parse_mask(iap_core_mask, p, &evmask); if (n != 1) return (-1); } else if (KWPREFIXMATCH(p, IAP_KW_AGENT "=")) { n = pmc_parse_mask(iap_agent_mask, p, &evmask); if (n != 1) return (-1); } else if (KWPREFIXMATCH(p, IAP_KW_PREFETCH "=")) { n = pmc_parse_mask(iap_prefetch_mask, p, &evmask); if (n != 1) return (-1); } else if (KWPREFIXMATCH(p, IAP_KW_CACHESTATE "=")) { n = pmc_parse_mask(iap_cachestate_mask, p, &cachestate); } else if (cpu_info.pm_cputype == PMC_CPU_INTEL_CORE && KWPREFIXMATCH(p, IAP_KW_TRANSITION "=")) { n = pmc_parse_mask(iap_transition_mask, p, &evmask); if (n != 1) return (-1); } else if (cpu_info.pm_cputype == PMC_CPU_INTEL_ATOM || cpu_info.pm_cputype == PMC_CPU_INTEL_ATOM_SILVERMONT || cpu_info.pm_cputype == PMC_CPU_INTEL_CORE2 || cpu_info.pm_cputype == PMC_CPU_INTEL_CORE2EXTREME) { if (KWPREFIXMATCH(p, IAP_KW_SNOOPRESPONSE "=")) { n = pmc_parse_mask(iap_snoopresponse_mask, p, &evmask); } else if (KWPREFIXMATCH(p, IAP_KW_SNOOPTYPE "=")) { n = pmc_parse_mask(iap_snooptype_mask, p, &evmask); } else return (-1); } else if (cpu_info.pm_cputype == PMC_CPU_INTEL_COREI7 || cpu_info.pm_cputype == PMC_CPU_INTEL_WESTMERE || cpu_info.pm_cputype == PMC_CPU_INTEL_NEHALEM_EX || cpu_info.pm_cputype == PMC_CPU_INTEL_WESTMERE_EX) { if (KWPREFIXMATCH(p, IAP_KW_RSP "=")) { n = pmc_parse_mask(iap_rsp_mask_i7_wm, p, &rsp); } else return (-1); } else if (cpu_info.pm_cputype == PMC_CPU_INTEL_SANDYBRIDGE || cpu_info.pm_cputype == PMC_CPU_INTEL_SANDYBRIDGE_XEON || cpu_info.pm_cputype == PMC_CPU_INTEL_IVYBRIDGE || cpu_info.pm_cputype == PMC_CPU_INTEL_IVYBRIDGE_XEON ) { if (KWPREFIXMATCH(p, IAP_KW_RSP "=")) { n = pmc_parse_mask(iap_rsp_mask_sb_sbx_ib, p, &rsp); } else return (-1); } else if (cpu_info.pm_cputype == PMC_CPU_INTEL_HASWELL || cpu_info.pm_cputype == PMC_CPU_INTEL_HASWELL_XEON) { if (KWPREFIXMATCH(p, IAP_KW_RSP "=")) { n = pmc_parse_mask(iap_rsp_mask_haswell, p, &rsp); } else return (-1); } else return (-1); if (n < 0) /* Parsing failed. */ return (-1); } pmc_config->pm_md.pm_iap.pm_iap_config |= evmask; /* * If the event requires a 'cachestate' qualifier but was not * specified by the user, use a sensible default. */ switch (pe) { case PMC_EV_IAP_EVENT_28H: /* Core, Core2, Atom */ case PMC_EV_IAP_EVENT_29H: /* Core, Core2, Atom */ case PMC_EV_IAP_EVENT_2AH: /* Core, Core2, Atom */ case PMC_EV_IAP_EVENT_2BH: /* Atom, Core2 */ case PMC_EV_IAP_EVENT_2EH: /* Core, Core2, Atom */ case PMC_EV_IAP_EVENT_30H: /* Core, Core2, Atom */ case PMC_EV_IAP_EVENT_32H: /* Core */ case PMC_EV_IAP_EVENT_40H: /* Core */ case PMC_EV_IAP_EVENT_41H: /* Core */ case PMC_EV_IAP_EVENT_42H: /* Core, Core2, Atom */ if (cachestate == 0) cachestate = (0xF << 8); break; case PMC_EV_IAP_EVENT_77H: /* Atom */ /* IAP_EVENT_77H only accepts a cachestate qualifier on the * Atom processor */ if(cpu_info.pm_cputype == PMC_CPU_INTEL_ATOM && cachestate == 0) cachestate = (0xF << 8); break; default: break; } pmc_config->pm_md.pm_iap.pm_iap_config |= cachestate; pmc_config->pm_md.pm_iap.pm_iap_rsp = rsp; return (0); } /* * Intel Uncore. */ static int ucf_allocate_pmc(enum pmc_event pe, char *ctrspec, struct pmc_op_pmcallocate *pmc_config) { (void) pe; (void) ctrspec; pmc_config->pm_caps |= (PMC_CAP_READ | PMC_CAP_WRITE); pmc_config->pm_md.pm_ucf.pm_ucf_flags = 0; return (0); } #define UCP_KW_CMASK "cmask" #define UCP_KW_EDGE "edge" #define UCP_KW_INV "inv" static int ucp_allocate_pmc(enum pmc_event pe, char *ctrspec, struct pmc_op_pmcallocate *pmc_config) { char *e, *p, *q; int count, n; (void) pe; pmc_config->pm_caps |= (PMC_CAP_READ | PMC_CAP_WRITE | PMC_CAP_QUALIFIER); pmc_config->pm_md.pm_ucp.pm_ucp_config = 0; /* Parse additional modifiers if present */ while ((p = strsep(&ctrspec, ",")) != NULL) { n = 0; if (KWPREFIXMATCH(p, UCP_KW_CMASK "=")) { q = strchr(p, '='); if (*++q == '\0') /* skip '=' */ return (-1); count = strtol(q, &e, 0); if (e == q || *e != '\0') return (-1); pmc_config->pm_caps |= PMC_CAP_THRESHOLD; pmc_config->pm_md.pm_ucp.pm_ucp_config |= UCP_CMASK(count); } else if (KWMATCH(p, UCP_KW_EDGE)) { pmc_config->pm_caps |= PMC_CAP_EDGE; } else if (KWMATCH(p, UCP_KW_INV)) { pmc_config->pm_caps |= PMC_CAP_INVERT; } else return (-1); if (n < 0) /* Parsing failed. */ return (-1); } return (0); } /* * AMD K8 PMCs. * * These are very similar to AMD K7 PMCs, but support more kinds of * events. */ static struct pmc_event_alias k8_aliases[] = { EV_ALIAS("branches", "k8-fr-retired-taken-branches"), EV_ALIAS("branch-mispredicts", "k8-fr-retired-taken-branches-mispredicted"), EV_ALIAS("cycles", "tsc"), EV_ALIAS("dc-misses", "k8-dc-miss"), EV_ALIAS("ic-misses", "k8-ic-miss"), EV_ALIAS("instructions", "k8-fr-retired-x86-instructions"), EV_ALIAS("interrupts", "k8-fr-taken-hardware-interrupts"), EV_ALIAS("unhalted-cycles", "k8-bu-cpu-clk-unhalted"), EV_ALIAS(NULL, NULL) }; #define __K8MASK(N,V) PMCMASK(N,(1 << (V))) /* * Parsing tables */ /* fp dispatched fpu ops */ static const struct pmc_masks k8_mask_fdfo[] = { __K8MASK(add-pipe-excluding-junk-ops, 0), __K8MASK(multiply-pipe-excluding-junk-ops, 1), __K8MASK(store-pipe-excluding-junk-ops, 2), __K8MASK(add-pipe-junk-ops, 3), __K8MASK(multiply-pipe-junk-ops, 4), __K8MASK(store-pipe-junk-ops, 5), NULLMASK }; /* ls segment register loads */ static const struct pmc_masks k8_mask_lsrl[] = { __K8MASK(es, 0), __K8MASK(cs, 1), __K8MASK(ss, 2), __K8MASK(ds, 3), __K8MASK(fs, 4), __K8MASK(gs, 5), __K8MASK(hs, 6), NULLMASK }; /* ls locked operation */ static const struct pmc_masks k8_mask_llo[] = { __K8MASK(locked-instructions, 0), __K8MASK(cycles-in-request, 1), __K8MASK(cycles-to-complete, 2), NULLMASK }; /* dc refill from {l2,system} and dc copyback */ static const struct pmc_masks k8_mask_dc[] = { __K8MASK(invalid, 0), __K8MASK(shared, 1), __K8MASK(exclusive, 2), __K8MASK(owner, 3), __K8MASK(modified, 4), NULLMASK }; /* dc one bit ecc error */ static const struct pmc_masks k8_mask_dobee[] = { __K8MASK(scrubber, 0), __K8MASK(piggyback, 1), NULLMASK }; /* dc dispatched prefetch instructions */ static const struct pmc_masks k8_mask_ddpi[] = { __K8MASK(load, 0), __K8MASK(store, 1), __K8MASK(nta, 2), NULLMASK }; /* dc dcache accesses by locks */ static const struct pmc_masks k8_mask_dabl[] = { __K8MASK(accesses, 0), __K8MASK(misses, 1), NULLMASK }; /* bu internal l2 request */ static const struct pmc_masks k8_mask_bilr[] = { __K8MASK(ic-fill, 0), __K8MASK(dc-fill, 1), __K8MASK(tlb-reload, 2), __K8MASK(tag-snoop, 3), __K8MASK(cancelled, 4), NULLMASK }; /* bu fill request l2 miss */ static const struct pmc_masks k8_mask_bfrlm[] = { __K8MASK(ic-fill, 0), __K8MASK(dc-fill, 1), __K8MASK(tlb-reload, 2), NULLMASK }; /* bu fill into l2 */ static const struct pmc_masks k8_mask_bfil[] = { __K8MASK(dirty-l2-victim, 0), __K8MASK(victim-from-l2, 1), NULLMASK }; /* fr retired fpu instructions */ static const struct pmc_masks k8_mask_frfi[] = { __K8MASK(x87, 0), __K8MASK(mmx-3dnow, 1), __K8MASK(packed-sse-sse2, 2), __K8MASK(scalar-sse-sse2, 3), NULLMASK }; /* fr retired fastpath double op instructions */ static const struct pmc_masks k8_mask_frfdoi[] = { __K8MASK(low-op-pos-0, 0), __K8MASK(low-op-pos-1, 1), __K8MASK(low-op-pos-2, 2), NULLMASK }; /* fr fpu exceptions */ static const struct pmc_masks k8_mask_ffe[] = { __K8MASK(x87-reclass-microfaults, 0), __K8MASK(sse-retype-microfaults, 1), __K8MASK(sse-reclass-microfaults, 2), __K8MASK(sse-and-x87-microtraps, 3), NULLMASK }; /* nb memory controller page access event */ static const struct pmc_masks k8_mask_nmcpae[] = { __K8MASK(page-hit, 0), __K8MASK(page-miss, 1), __K8MASK(page-conflict, 2), NULLMASK }; /* nb memory controller turnaround */ static const struct pmc_masks k8_mask_nmct[] = { __K8MASK(dimm-turnaround, 0), __K8MASK(read-to-write-turnaround, 1), __K8MASK(write-to-read-turnaround, 2), NULLMASK }; /* nb memory controller bypass saturation */ static const struct pmc_masks k8_mask_nmcbs[] = { __K8MASK(memory-controller-hi-pri-bypass, 0), __K8MASK(memory-controller-lo-pri-bypass, 1), __K8MASK(dram-controller-interface-bypass, 2), __K8MASK(dram-controller-queue-bypass, 3), NULLMASK }; /* nb sized commands */ static const struct pmc_masks k8_mask_nsc[] = { __K8MASK(nonpostwrszbyte, 0), __K8MASK(nonpostwrszdword, 1), __K8MASK(postwrszbyte, 2), __K8MASK(postwrszdword, 3), __K8MASK(rdszbyte, 4), __K8MASK(rdszdword, 5), __K8MASK(rdmodwr, 6), NULLMASK }; /* nb probe result */ static const struct pmc_masks k8_mask_npr[] = { __K8MASK(probe-miss, 0), __K8MASK(probe-hit, 1), __K8MASK(probe-hit-dirty-no-memory-cancel, 2), __K8MASK(probe-hit-dirty-with-memory-cancel, 3), NULLMASK }; /* nb hypertransport bus bandwidth */ static const struct pmc_masks k8_mask_nhbb[] = { /* HT bus bandwidth */ __K8MASK(command, 0), __K8MASK(data, 1), __K8MASK(buffer-release, 2), __K8MASK(nop, 3), NULLMASK }; #undef __K8MASK #define K8_KW_COUNT "count" #define K8_KW_EDGE "edge" #define K8_KW_INV "inv" #define K8_KW_MASK "mask" #define K8_KW_OS "os" #define K8_KW_USR "usr" static int k8_allocate_pmc(enum pmc_event pe, char *ctrspec, struct pmc_op_pmcallocate *pmc_config) { char *e, *p, *q; int n; uint32_t count; uint64_t evmask; const struct pmc_masks *pm, *pmask; pmc_config->pm_caps |= (PMC_CAP_READ | PMC_CAP_WRITE); pmc_config->pm_md.pm_amd.pm_amd_config = 0; pmask = NULL; evmask = 0; #define __K8SETMASK(M) pmask = k8_mask_##M /* setup parsing tables */ switch (pe) { case PMC_EV_K8_FP_DISPATCHED_FPU_OPS: __K8SETMASK(fdfo); break; case PMC_EV_K8_LS_SEGMENT_REGISTER_LOAD: __K8SETMASK(lsrl); break; case PMC_EV_K8_LS_LOCKED_OPERATION: __K8SETMASK(llo); break; case PMC_EV_K8_DC_REFILL_FROM_L2: case PMC_EV_K8_DC_REFILL_FROM_SYSTEM: case PMC_EV_K8_DC_COPYBACK: __K8SETMASK(dc); break; case PMC_EV_K8_DC_ONE_BIT_ECC_ERROR: __K8SETMASK(dobee); break; case PMC_EV_K8_DC_DISPATCHED_PREFETCH_INSTRUCTIONS: __K8SETMASK(ddpi); break; case PMC_EV_K8_DC_DCACHE_ACCESSES_BY_LOCKS: __K8SETMASK(dabl); break; case PMC_EV_K8_BU_INTERNAL_L2_REQUEST: __K8SETMASK(bilr); break; case PMC_EV_K8_BU_FILL_REQUEST_L2_MISS: __K8SETMASK(bfrlm); break; case PMC_EV_K8_BU_FILL_INTO_L2: __K8SETMASK(bfil); break; case PMC_EV_K8_FR_RETIRED_FPU_INSTRUCTIONS: __K8SETMASK(frfi); break; case PMC_EV_K8_FR_RETIRED_FASTPATH_DOUBLE_OP_INSTRUCTIONS: __K8SETMASK(frfdoi); break; case PMC_EV_K8_FR_FPU_EXCEPTIONS: __K8SETMASK(ffe); break; case PMC_EV_K8_NB_MEMORY_CONTROLLER_PAGE_ACCESS_EVENT: __K8SETMASK(nmcpae); break; case PMC_EV_K8_NB_MEMORY_CONTROLLER_TURNAROUND: __K8SETMASK(nmct); break; case PMC_EV_K8_NB_MEMORY_CONTROLLER_BYPASS_SATURATION: __K8SETMASK(nmcbs); break; case PMC_EV_K8_NB_SIZED_COMMANDS: __K8SETMASK(nsc); break; case PMC_EV_K8_NB_PROBE_RESULT: __K8SETMASK(npr); break; case PMC_EV_K8_NB_HT_BUS0_BANDWIDTH: case PMC_EV_K8_NB_HT_BUS1_BANDWIDTH: case PMC_EV_K8_NB_HT_BUS2_BANDWIDTH: __K8SETMASK(nhbb); break; default: break; /* no options defined */ } while ((p = strsep(&ctrspec, ",")) != NULL) { if (KWPREFIXMATCH(p, K8_KW_COUNT "=")) { q = strchr(p, '='); if (*++q == '\0') /* skip '=' */ return (-1); count = strtol(q, &e, 0); if (e == q || *e != '\0') return (-1); pmc_config->pm_caps |= PMC_CAP_THRESHOLD; pmc_config->pm_md.pm_amd.pm_amd_config |= AMD_PMC_TO_COUNTER(count); } else if (KWMATCH(p, K8_KW_EDGE)) { pmc_config->pm_caps |= PMC_CAP_EDGE; } else if (KWMATCH(p, K8_KW_INV)) { pmc_config->pm_caps |= PMC_CAP_INVERT; } else if (KWPREFIXMATCH(p, K8_KW_MASK "=")) { if ((n = pmc_parse_mask(pmask, p, &evmask)) < 0) return (-1); pmc_config->pm_caps |= PMC_CAP_QUALIFIER; } else if (KWMATCH(p, K8_KW_OS)) { pmc_config->pm_caps |= PMC_CAP_SYSTEM; } else if (KWMATCH(p, K8_KW_USR)) { pmc_config->pm_caps |= PMC_CAP_USER; } else return (-1); } /* other post processing */ switch (pe) { case PMC_EV_K8_FP_DISPATCHED_FPU_OPS: case PMC_EV_K8_FP_CYCLES_WITH_NO_FPU_OPS_RETIRED: case PMC_EV_K8_FP_DISPATCHED_FPU_FAST_FLAG_OPS: case PMC_EV_K8_FR_RETIRED_FASTPATH_DOUBLE_OP_INSTRUCTIONS: case PMC_EV_K8_FR_RETIRED_FPU_INSTRUCTIONS: case PMC_EV_K8_FR_FPU_EXCEPTIONS: /* XXX only available in rev B and later */ break; case PMC_EV_K8_DC_DCACHE_ACCESSES_BY_LOCKS: /* XXX only available in rev C and later */ break; case PMC_EV_K8_LS_LOCKED_OPERATION: /* XXX CPU Rev A,B evmask is to be zero */ if (evmask & (evmask - 1)) /* > 1 bit set */ return (-1); if (evmask == 0) { evmask = 0x01; /* Rev C and later: #instrs */ pmc_config->pm_caps |= PMC_CAP_QUALIFIER; } break; default: if (evmask == 0 && pmask != NULL) { for (pm = pmask; pm->pm_name; pm++) evmask |= pm->pm_value; pmc_config->pm_caps |= PMC_CAP_QUALIFIER; } } if (pmc_config->pm_caps & PMC_CAP_QUALIFIER) pmc_config->pm_md.pm_amd.pm_amd_config = AMD_PMC_TO_UNITMASK(evmask); return (0); } #endif #if defined(__amd64__) || defined(__i386__) /* * Intel P4 PMCs */ static struct pmc_event_alias p4_aliases[] = { EV_ALIAS("branches", "p4-branch-retired,mask=mmtp+mmtm"), EV_ALIAS("branch-mispredicts", "p4-mispred-branch-retired"), EV_ALIAS("cycles", "tsc"), EV_ALIAS("instructions", "p4-instr-retired,mask=nbogusntag+nbogustag"), EV_ALIAS("unhalted-cycles", "p4-global-power-events"), EV_ALIAS(NULL, NULL) }; #define P4_KW_ACTIVE "active" #define P4_KW_ACTIVE_ANY "any" #define P4_KW_ACTIVE_BOTH "both" #define P4_KW_ACTIVE_NONE "none" #define P4_KW_ACTIVE_SINGLE "single" #define P4_KW_BUSREQTYPE "busreqtype" #define P4_KW_CASCADE "cascade" #define P4_KW_EDGE "edge" #define P4_KW_INV "complement" #define P4_KW_OS "os" #define P4_KW_MASK "mask" #define P4_KW_PRECISE "precise" #define P4_KW_TAG "tag" #define P4_KW_THRESHOLD "threshold" #define P4_KW_USR "usr" #define __P4MASK(N,V) PMCMASK(N, (1 << (V))) static const struct pmc_masks p4_mask_tcdm[] = { /* tc deliver mode */ __P4MASK(dd, 0), __P4MASK(db, 1), __P4MASK(di, 2), __P4MASK(bd, 3), __P4MASK(bb, 4), __P4MASK(bi, 5), __P4MASK(id, 6), __P4MASK(ib, 7), NULLMASK }; static const struct pmc_masks p4_mask_bfr[] = { /* bpu fetch request */ __P4MASK(tcmiss, 0), NULLMASK, }; static const struct pmc_masks p4_mask_ir[] = { /* itlb reference */ __P4MASK(hit, 0), __P4MASK(miss, 1), __P4MASK(hit-uc, 2), NULLMASK }; static const struct pmc_masks p4_mask_memcan[] = { /* memory cancel */ __P4MASK(st-rb-full, 2), __P4MASK(64k-conf, 3), NULLMASK }; static const struct pmc_masks p4_mask_memcomp[] = { /* memory complete */ __P4MASK(lsc, 0), __P4MASK(ssc, 1), NULLMASK }; static const struct pmc_masks p4_mask_lpr[] = { /* load port replay */ __P4MASK(split-ld, 1), NULLMASK }; static const struct pmc_masks p4_mask_spr[] = { /* store port replay */ __P4MASK(split-st, 1), NULLMASK }; static const struct pmc_masks p4_mask_mlr[] = { /* mob load replay */ __P4MASK(no-sta, 1), __P4MASK(no-std, 3), __P4MASK(partial-data, 4), __P4MASK(unalgn-addr, 5), NULLMASK }; static const struct pmc_masks p4_mask_pwt[] = { /* page walk type */ __P4MASK(dtmiss, 0), __P4MASK(itmiss, 1), NULLMASK }; static const struct pmc_masks p4_mask_bcr[] = { /* bsq cache reference */ __P4MASK(rd-2ndl-hits, 0), __P4MASK(rd-2ndl-hite, 1), __P4MASK(rd-2ndl-hitm, 2), __P4MASK(rd-3rdl-hits, 3), __P4MASK(rd-3rdl-hite, 4), __P4MASK(rd-3rdl-hitm, 5), __P4MASK(rd-2ndl-miss, 8), __P4MASK(rd-3rdl-miss, 9), __P4MASK(wr-2ndl-miss, 10), NULLMASK }; static const struct pmc_masks p4_mask_ia[] = { /* ioq allocation */ __P4MASK(all-read, 5), __P4MASK(all-write, 6), __P4MASK(mem-uc, 7), __P4MASK(mem-wc, 8), __P4MASK(mem-wt, 9), __P4MASK(mem-wp, 10), __P4MASK(mem-wb, 11), __P4MASK(own, 13), __P4MASK(other, 14), __P4MASK(prefetch, 15), NULLMASK }; static const struct pmc_masks p4_mask_iae[] = { /* ioq active entries */ __P4MASK(all-read, 5), __P4MASK(all-write, 6), __P4MASK(mem-uc, 7), __P4MASK(mem-wc, 8), __P4MASK(mem-wt, 9), __P4MASK(mem-wp, 10), __P4MASK(mem-wb, 11), __P4MASK(own, 13), __P4MASK(other, 14), __P4MASK(prefetch, 15), NULLMASK }; static const struct pmc_masks p4_mask_fda[] = { /* fsb data activity */ __P4MASK(drdy-drv, 0), __P4MASK(drdy-own, 1), __P4MASK(drdy-other, 2), __P4MASK(dbsy-drv, 3), __P4MASK(dbsy-own, 4), __P4MASK(dbsy-other, 5), NULLMASK }; static const struct pmc_masks p4_mask_ba[] = { /* bsq allocation */ __P4MASK(req-type0, 0), __P4MASK(req-type1, 1), __P4MASK(req-len0, 2), __P4MASK(req-len1, 3), __P4MASK(req-io-type, 5), __P4MASK(req-lock-type, 6), __P4MASK(req-cache-type, 7), __P4MASK(req-split-type, 8), __P4MASK(req-dem-type, 9), __P4MASK(req-ord-type, 10), __P4MASK(mem-type0, 11), __P4MASK(mem-type1, 12), __P4MASK(mem-type2, 13), NULLMASK }; static const struct pmc_masks p4_mask_sia[] = { /* sse input assist */ __P4MASK(all, 15), NULLMASK }; static const struct pmc_masks p4_mask_psu[] = { /* packed sp uop */ __P4MASK(all, 15), NULLMASK }; static const struct pmc_masks p4_mask_pdu[] = { /* packed dp uop */ __P4MASK(all, 15), NULLMASK }; static const struct pmc_masks p4_mask_ssu[] = { /* scalar sp uop */ __P4MASK(all, 15), NULLMASK }; static const struct pmc_masks p4_mask_sdu[] = { /* scalar dp uop */ __P4MASK(all, 15), NULLMASK }; static const struct pmc_masks p4_mask_64bmu[] = { /* 64 bit mmx uop */ __P4MASK(all, 15), NULLMASK }; static const struct pmc_masks p4_mask_128bmu[] = { /* 128 bit mmx uop */ __P4MASK(all, 15), NULLMASK }; static const struct pmc_masks p4_mask_xfu[] = { /* X87 fp uop */ __P4MASK(all, 15), NULLMASK }; static const struct pmc_masks p4_mask_xsmu[] = { /* x87 simd moves uop */ __P4MASK(allp0, 3), __P4MASK(allp2, 4), NULLMASK }; static const struct pmc_masks p4_mask_gpe[] = { /* global power events */ __P4MASK(running, 0), NULLMASK }; static const struct pmc_masks p4_mask_tmx[] = { /* TC ms xfer */ __P4MASK(cisc, 0), NULLMASK }; static const struct pmc_masks p4_mask_uqw[] = { /* uop queue writes */ __P4MASK(from-tc-build, 0), __P4MASK(from-tc-deliver, 1), __P4MASK(from-rom, 2), NULLMASK }; static const struct pmc_masks p4_mask_rmbt[] = { /* retired mispred branch type */ __P4MASK(conditional, 1), __P4MASK(call, 2), __P4MASK(return, 3), __P4MASK(indirect, 4), NULLMASK }; static const struct pmc_masks p4_mask_rbt[] = { /* retired branch type */ __P4MASK(conditional, 1), __P4MASK(call, 2), __P4MASK(retired, 3), __P4MASK(indirect, 4), NULLMASK }; static const struct pmc_masks p4_mask_rs[] = { /* resource stall */ __P4MASK(sbfull, 5), NULLMASK }; static const struct pmc_masks p4_mask_wb[] = { /* WC buffer */ __P4MASK(wcb-evicts, 0), __P4MASK(wcb-full-evict, 1), NULLMASK }; static const struct pmc_masks p4_mask_fee[] = { /* front end event */ __P4MASK(nbogus, 0), __P4MASK(bogus, 1), NULLMASK }; static const struct pmc_masks p4_mask_ee[] = { /* execution event */ __P4MASK(nbogus0, 0), __P4MASK(nbogus1, 1), __P4MASK(nbogus2, 2), __P4MASK(nbogus3, 3), __P4MASK(bogus0, 4), __P4MASK(bogus1, 5), __P4MASK(bogus2, 6), __P4MASK(bogus3, 7), NULLMASK }; static const struct pmc_masks p4_mask_re[] = { /* replay event */ __P4MASK(nbogus, 0), __P4MASK(bogus, 1), NULLMASK }; static const struct pmc_masks p4_mask_insret[] = { /* instr retired */ __P4MASK(nbogusntag, 0), __P4MASK(nbogustag, 1), __P4MASK(bogusntag, 2), __P4MASK(bogustag, 3), NULLMASK }; static const struct pmc_masks p4_mask_ur[] = { /* uops retired */ __P4MASK(nbogus, 0), __P4MASK(bogus, 1), NULLMASK }; static const struct pmc_masks p4_mask_ut[] = { /* uop type */ __P4MASK(tagloads, 1), __P4MASK(tagstores, 2), NULLMASK }; static const struct pmc_masks p4_mask_br[] = { /* branch retired */ __P4MASK(mmnp, 0), __P4MASK(mmnm, 1), __P4MASK(mmtp, 2), __P4MASK(mmtm, 3), NULLMASK }; static const struct pmc_masks p4_mask_mbr[] = { /* mispred branch retired */ __P4MASK(nbogus, 0), NULLMASK }; static const struct pmc_masks p4_mask_xa[] = { /* x87 assist */ __P4MASK(fpsu, 0), __P4MASK(fpso, 1), __P4MASK(poao, 2), __P4MASK(poau, 3), __P4MASK(prea, 4), NULLMASK }; static const struct pmc_masks p4_mask_machclr[] = { /* machine clear */ __P4MASK(clear, 0), __P4MASK(moclear, 2), __P4MASK(smclear, 3), NULLMASK }; /* P4 event parser */ static int p4_allocate_pmc(enum pmc_event pe, char *ctrspec, struct pmc_op_pmcallocate *pmc_config) { char *e, *p, *q; int count, has_tag, has_busreqtype, n; uint32_t cccractivemask; uint64_t evmask; const struct pmc_masks *pm, *pmask; pmc_config->pm_caps |= (PMC_CAP_READ | PMC_CAP_WRITE); pmc_config->pm_md.pm_p4.pm_p4_cccrconfig = pmc_config->pm_md.pm_p4.pm_p4_escrconfig = 0; pmask = NULL; evmask = 0; cccractivemask = 0x3; has_tag = has_busreqtype = 0; #define __P4SETMASK(M) do { \ pmask = p4_mask_##M; \ } while (0) switch (pe) { case PMC_EV_P4_TC_DELIVER_MODE: __P4SETMASK(tcdm); break; case PMC_EV_P4_BPU_FETCH_REQUEST: __P4SETMASK(bfr); break; case PMC_EV_P4_ITLB_REFERENCE: __P4SETMASK(ir); break; case PMC_EV_P4_MEMORY_CANCEL: __P4SETMASK(memcan); break; case PMC_EV_P4_MEMORY_COMPLETE: __P4SETMASK(memcomp); break; case PMC_EV_P4_LOAD_PORT_REPLAY: __P4SETMASK(lpr); break; case PMC_EV_P4_STORE_PORT_REPLAY: __P4SETMASK(spr); break; case PMC_EV_P4_MOB_LOAD_REPLAY: __P4SETMASK(mlr); break; case PMC_EV_P4_PAGE_WALK_TYPE: __P4SETMASK(pwt); break; case PMC_EV_P4_BSQ_CACHE_REFERENCE: __P4SETMASK(bcr); break; case PMC_EV_P4_IOQ_ALLOCATION: __P4SETMASK(ia); has_busreqtype = 1; break; case PMC_EV_P4_IOQ_ACTIVE_ENTRIES: __P4SETMASK(iae); has_busreqtype = 1; break; case PMC_EV_P4_FSB_DATA_ACTIVITY: __P4SETMASK(fda); break; case PMC_EV_P4_BSQ_ALLOCATION: __P4SETMASK(ba); break; case PMC_EV_P4_SSE_INPUT_ASSIST: __P4SETMASK(sia); break; case PMC_EV_P4_PACKED_SP_UOP: __P4SETMASK(psu); break; case PMC_EV_P4_PACKED_DP_UOP: __P4SETMASK(pdu); break; case PMC_EV_P4_SCALAR_SP_UOP: __P4SETMASK(ssu); break; case PMC_EV_P4_SCALAR_DP_UOP: __P4SETMASK(sdu); break; case PMC_EV_P4_64BIT_MMX_UOP: __P4SETMASK(64bmu); break; case PMC_EV_P4_128BIT_MMX_UOP: __P4SETMASK(128bmu); break; case PMC_EV_P4_X87_FP_UOP: __P4SETMASK(xfu); break; case PMC_EV_P4_X87_SIMD_MOVES_UOP: __P4SETMASK(xsmu); break; case PMC_EV_P4_GLOBAL_POWER_EVENTS: __P4SETMASK(gpe); break; case PMC_EV_P4_TC_MS_XFER: __P4SETMASK(tmx); break; case PMC_EV_P4_UOP_QUEUE_WRITES: __P4SETMASK(uqw); break; case PMC_EV_P4_RETIRED_MISPRED_BRANCH_TYPE: __P4SETMASK(rmbt); break; case PMC_EV_P4_RETIRED_BRANCH_TYPE: __P4SETMASK(rbt); break; case PMC_EV_P4_RESOURCE_STALL: __P4SETMASK(rs); break; case PMC_EV_P4_WC_BUFFER: __P4SETMASK(wb); break; case PMC_EV_P4_BSQ_ACTIVE_ENTRIES: case PMC_EV_P4_B2B_CYCLES: case PMC_EV_P4_BNR: case PMC_EV_P4_SNOOP: case PMC_EV_P4_RESPONSE: break; case PMC_EV_P4_FRONT_END_EVENT: __P4SETMASK(fee); break; case PMC_EV_P4_EXECUTION_EVENT: __P4SETMASK(ee); break; case PMC_EV_P4_REPLAY_EVENT: __P4SETMASK(re); break; case PMC_EV_P4_INSTR_RETIRED: __P4SETMASK(insret); break; case PMC_EV_P4_UOPS_RETIRED: __P4SETMASK(ur); break; case PMC_EV_P4_UOP_TYPE: __P4SETMASK(ut); break; case PMC_EV_P4_BRANCH_RETIRED: __P4SETMASK(br); break; case PMC_EV_P4_MISPRED_BRANCH_RETIRED: __P4SETMASK(mbr); break; case PMC_EV_P4_X87_ASSIST: __P4SETMASK(xa); break; case PMC_EV_P4_MACHINE_CLEAR: __P4SETMASK(machclr); break; default: return (-1); } /* process additional flags */ while ((p = strsep(&ctrspec, ",")) != NULL) { if (KWPREFIXMATCH(p, P4_KW_ACTIVE)) { q = strchr(p, '='); if (*++q == '\0') /* skip '=' */ return (-1); if (strcasecmp(q, P4_KW_ACTIVE_NONE) == 0) cccractivemask = 0x0; else if (strcasecmp(q, P4_KW_ACTIVE_SINGLE) == 0) cccractivemask = 0x1; else if (strcasecmp(q, P4_KW_ACTIVE_BOTH) == 0) cccractivemask = 0x2; else if (strcasecmp(q, P4_KW_ACTIVE_ANY) == 0) cccractivemask = 0x3; else return (-1); } else if (KWPREFIXMATCH(p, P4_KW_BUSREQTYPE)) { if (has_busreqtype == 0) return (-1); q = strchr(p, '='); if (*++q == '\0') /* skip '=' */ return (-1); count = strtol(q, &e, 0); if (e == q || *e != '\0') return (-1); evmask = (evmask & ~0x1F) | (count & 0x1F); } else if (KWMATCH(p, P4_KW_CASCADE)) pmc_config->pm_caps |= PMC_CAP_CASCADE; else if (KWMATCH(p, P4_KW_EDGE)) pmc_config->pm_caps |= PMC_CAP_EDGE; else if (KWMATCH(p, P4_KW_INV)) pmc_config->pm_caps |= PMC_CAP_INVERT; else if (KWPREFIXMATCH(p, P4_KW_MASK "=")) { if ((n = pmc_parse_mask(pmask, p, &evmask)) < 0) return (-1); pmc_config->pm_caps |= PMC_CAP_QUALIFIER; } else if (KWMATCH(p, P4_KW_OS)) pmc_config->pm_caps |= PMC_CAP_SYSTEM; else if (KWMATCH(p, P4_KW_PRECISE)) pmc_config->pm_caps |= PMC_CAP_PRECISE; else if (KWPREFIXMATCH(p, P4_KW_TAG "=")) { if (has_tag == 0) return (-1); q = strchr(p, '='); if (*++q == '\0') /* skip '=' */ return (-1); count = strtol(q, &e, 0); if (e == q || *e != '\0') return (-1); pmc_config->pm_caps |= PMC_CAP_TAGGING; pmc_config->pm_md.pm_p4.pm_p4_escrconfig |= P4_ESCR_TO_TAG_VALUE(count); } else if (KWPREFIXMATCH(p, P4_KW_THRESHOLD "=")) { q = strchr(p, '='); if (*++q == '\0') /* skip '=' */ return (-1); count = strtol(q, &e, 0); if (e == q || *e != '\0') return (-1); pmc_config->pm_caps |= PMC_CAP_THRESHOLD; pmc_config->pm_md.pm_p4.pm_p4_cccrconfig &= ~P4_CCCR_THRESHOLD_MASK; pmc_config->pm_md.pm_p4.pm_p4_cccrconfig |= P4_CCCR_TO_THRESHOLD(count); } else if (KWMATCH(p, P4_KW_USR)) pmc_config->pm_caps |= PMC_CAP_USER; else return (-1); } /* other post processing */ if (pe == PMC_EV_P4_IOQ_ALLOCATION || pe == PMC_EV_P4_FSB_DATA_ACTIVITY || pe == PMC_EV_P4_BSQ_ALLOCATION) pmc_config->pm_caps |= PMC_CAP_EDGE; /* fill in thread activity mask */ pmc_config->pm_md.pm_p4.pm_p4_cccrconfig |= P4_CCCR_TO_ACTIVE_THREAD(cccractivemask); if (evmask) pmc_config->pm_caps |= PMC_CAP_QUALIFIER; switch (pe) { case PMC_EV_P4_FSB_DATA_ACTIVITY: if ((evmask & 0x06) == 0x06 || (evmask & 0x18) == 0x18) return (-1); /* can't have own+other bits together */ if (evmask == 0) /* default:drdy-{drv,own}+dbsy{drv,own} */ evmask = 0x1D; break; case PMC_EV_P4_MACHINE_CLEAR: /* only one bit is allowed to be set */ if ((evmask & (evmask - 1)) != 0) return (-1); if (evmask == 0) { evmask = 0x1; /* 'CLEAR' */ pmc_config->pm_caps |= PMC_CAP_QUALIFIER; } break; default: if (evmask == 0 && pmask) { for (pm = pmask; pm->pm_name; pm++) evmask |= pm->pm_value; pmc_config->pm_caps |= PMC_CAP_QUALIFIER; } } pmc_config->pm_md.pm_p4.pm_p4_escrconfig = P4_ESCR_TO_EVENT_MASK(evmask); return (0); } #endif #if defined(__i386__) /* * Pentium style PMCs */ static struct pmc_event_alias p5_aliases[] = { EV_ALIAS("branches", "p5-taken-branches"), EV_ALIAS("cycles", "tsc"), EV_ALIAS("dc-misses", "p5-data-read-miss-or-write-miss"), EV_ALIAS("ic-misses", "p5-code-cache-miss"), EV_ALIAS("instructions", "p5-instructions-executed"), EV_ALIAS("interrupts", "p5-hardware-interrupts"), EV_ALIAS("unhalted-cycles", "p5-number-of-cycles-not-in-halt-state"), EV_ALIAS(NULL, NULL) }; static int p5_allocate_pmc(enum pmc_event pe, char *ctrspec, struct pmc_op_pmcallocate *pmc_config) { return (-1 || pe || ctrspec || pmc_config); /* shut up gcc */ } /* * Pentium Pro style PMCs. These PMCs are found in Pentium II, Pentium III, * and Pentium M CPUs. */ static struct pmc_event_alias p6_aliases[] = { EV_ALIAS("branches", "p6-br-inst-retired"), EV_ALIAS("branch-mispredicts", "p6-br-miss-pred-retired"), EV_ALIAS("cycles", "tsc"), EV_ALIAS("dc-misses", "p6-dcu-lines-in"), EV_ALIAS("ic-misses", "p6-ifu-fetch-miss"), EV_ALIAS("instructions", "p6-inst-retired"), EV_ALIAS("interrupts", "p6-hw-int-rx"), EV_ALIAS("unhalted-cycles", "p6-cpu-clk-unhalted"), EV_ALIAS(NULL, NULL) }; #define P6_KW_CMASK "cmask" #define P6_KW_EDGE "edge" #define P6_KW_INV "inv" #define P6_KW_OS "os" #define P6_KW_UMASK "umask" #define P6_KW_USR "usr" static struct pmc_masks p6_mask_mesi[] = { PMCMASK(m, 0x01), PMCMASK(e, 0x02), PMCMASK(s, 0x04), PMCMASK(i, 0x08), NULLMASK }; static struct pmc_masks p6_mask_mesihw[] = { PMCMASK(m, 0x01), PMCMASK(e, 0x02), PMCMASK(s, 0x04), PMCMASK(i, 0x08), PMCMASK(nonhw, 0x00), PMCMASK(hw, 0x10), PMCMASK(both, 0x30), NULLMASK }; static struct pmc_masks p6_mask_hw[] = { PMCMASK(nonhw, 0x00), PMCMASK(hw, 0x10), PMCMASK(both, 0x30), NULLMASK }; static struct pmc_masks p6_mask_any[] = { PMCMASK(self, 0x00), PMCMASK(any, 0x20), NULLMASK }; static struct pmc_masks p6_mask_ekp[] = { PMCMASK(nta, 0x00), PMCMASK(t1, 0x01), PMCMASK(t2, 0x02), PMCMASK(wos, 0x03), NULLMASK }; static struct pmc_masks p6_mask_pps[] = { PMCMASK(packed-and-scalar, 0x00), PMCMASK(scalar, 0x01), NULLMASK }; static struct pmc_masks p6_mask_mite[] = { PMCMASK(packed-multiply, 0x01), PMCMASK(packed-shift, 0x02), PMCMASK(pack, 0x04), PMCMASK(unpack, 0x08), PMCMASK(packed-logical, 0x10), PMCMASK(packed-arithmetic, 0x20), NULLMASK }; static struct pmc_masks p6_mask_fmt[] = { PMCMASK(mmxtofp, 0x00), PMCMASK(fptommx, 0x01), NULLMASK }; static struct pmc_masks p6_mask_sr[] = { PMCMASK(es, 0x01), PMCMASK(ds, 0x02), PMCMASK(fs, 0x04), PMCMASK(gs, 0x08), NULLMASK }; static struct pmc_masks p6_mask_eet[] = { PMCMASK(all, 0x00), PMCMASK(freq, 0x02), NULLMASK }; static struct pmc_masks p6_mask_efur[] = { PMCMASK(all, 0x00), PMCMASK(loadop, 0x01), PMCMASK(stdsta, 0x02), NULLMASK }; static struct pmc_masks p6_mask_essir[] = { PMCMASK(sse-packed-single, 0x00), PMCMASK(sse-packed-single-scalar-single, 0x01), PMCMASK(sse2-packed-double, 0x02), PMCMASK(sse2-scalar-double, 0x03), NULLMASK }; static struct pmc_masks p6_mask_esscir[] = { PMCMASK(sse-packed-single, 0x00), PMCMASK(sse-scalar-single, 0x01), PMCMASK(sse2-packed-double, 0x02), PMCMASK(sse2-scalar-double, 0x03), NULLMASK }; /* P6 event parser */ static int p6_allocate_pmc(enum pmc_event pe, char *ctrspec, struct pmc_op_pmcallocate *pmc_config) { char *e, *p, *q; uint64_t evmask; int count, n; const struct pmc_masks *pm, *pmask; pmc_config->pm_caps |= (PMC_CAP_READ | PMC_CAP_WRITE); pmc_config->pm_md.pm_ppro.pm_ppro_config = 0; evmask = 0; #define P6MASKSET(M) pmask = p6_mask_ ## M switch(pe) { case PMC_EV_P6_L2_IFETCH: P6MASKSET(mesi); break; case PMC_EV_P6_L2_LD: P6MASKSET(mesi); break; case PMC_EV_P6_L2_ST: P6MASKSET(mesi); break; case PMC_EV_P6_L2_RQSTS: P6MASKSET(mesi); break; case PMC_EV_P6_BUS_DRDY_CLOCKS: case PMC_EV_P6_BUS_LOCK_CLOCKS: case PMC_EV_P6_BUS_TRAN_BRD: case PMC_EV_P6_BUS_TRAN_RFO: case PMC_EV_P6_BUS_TRANS_WB: case PMC_EV_P6_BUS_TRAN_IFETCH: case PMC_EV_P6_BUS_TRAN_INVAL: case PMC_EV_P6_BUS_TRAN_PWR: case PMC_EV_P6_BUS_TRANS_P: case PMC_EV_P6_BUS_TRANS_IO: case PMC_EV_P6_BUS_TRAN_DEF: case PMC_EV_P6_BUS_TRAN_BURST: case PMC_EV_P6_BUS_TRAN_ANY: case PMC_EV_P6_BUS_TRAN_MEM: P6MASKSET(any); break; case PMC_EV_P6_EMON_KNI_PREF_DISPATCHED: case PMC_EV_P6_EMON_KNI_PREF_MISS: P6MASKSET(ekp); break; case PMC_EV_P6_EMON_KNI_INST_RETIRED: case PMC_EV_P6_EMON_KNI_COMP_INST_RET: P6MASKSET(pps); break; case PMC_EV_P6_MMX_INSTR_TYPE_EXEC: P6MASKSET(mite); break; case PMC_EV_P6_FP_MMX_TRANS: P6MASKSET(fmt); break; case PMC_EV_P6_SEG_RENAME_STALLS: case PMC_EV_P6_SEG_REG_RENAMES: P6MASKSET(sr); break; case PMC_EV_P6_EMON_EST_TRANS: P6MASKSET(eet); break; case PMC_EV_P6_EMON_FUSED_UOPS_RET: P6MASKSET(efur); break; case PMC_EV_P6_EMON_SSE_SSE2_INST_RETIRED: P6MASKSET(essir); break; case PMC_EV_P6_EMON_SSE_SSE2_COMP_INST_RETIRED: P6MASKSET(esscir); break; default: pmask = NULL; break; } /* Pentium M PMCs have a few events with different semantics */ if (cpu_info.pm_cputype == PMC_CPU_INTEL_PM) { if (pe == PMC_EV_P6_L2_LD || pe == PMC_EV_P6_L2_LINES_IN || pe == PMC_EV_P6_L2_LINES_OUT) P6MASKSET(mesihw); else if (pe == PMC_EV_P6_L2_M_LINES_OUTM) P6MASKSET(hw); } /* Parse additional modifiers if present */ while ((p = strsep(&ctrspec, ",")) != NULL) { if (KWPREFIXMATCH(p, P6_KW_CMASK "=")) { q = strchr(p, '='); if (*++q == '\0') /* skip '=' */ return (-1); count = strtol(q, &e, 0); if (e == q || *e != '\0') return (-1); pmc_config->pm_caps |= PMC_CAP_THRESHOLD; pmc_config->pm_md.pm_ppro.pm_ppro_config |= P6_EVSEL_TO_CMASK(count); } else if (KWMATCH(p, P6_KW_EDGE)) { pmc_config->pm_caps |= PMC_CAP_EDGE; } else if (KWMATCH(p, P6_KW_INV)) { pmc_config->pm_caps |= PMC_CAP_INVERT; } else if (KWMATCH(p, P6_KW_OS)) { pmc_config->pm_caps |= PMC_CAP_SYSTEM; } else if (KWPREFIXMATCH(p, P6_KW_UMASK "=")) { evmask = 0; if ((n = pmc_parse_mask(pmask, p, &evmask)) < 0) return (-1); if ((pe == PMC_EV_P6_BUS_DRDY_CLOCKS || pe == PMC_EV_P6_BUS_LOCK_CLOCKS || pe == PMC_EV_P6_BUS_TRAN_BRD || pe == PMC_EV_P6_BUS_TRAN_RFO || pe == PMC_EV_P6_BUS_TRAN_IFETCH || pe == PMC_EV_P6_BUS_TRAN_INVAL || pe == PMC_EV_P6_BUS_TRAN_PWR || pe == PMC_EV_P6_BUS_TRAN_DEF || pe == PMC_EV_P6_BUS_TRAN_BURST || pe == PMC_EV_P6_BUS_TRAN_ANY || pe == PMC_EV_P6_BUS_TRAN_MEM || pe == PMC_EV_P6_BUS_TRANS_IO || pe == PMC_EV_P6_BUS_TRANS_P || pe == PMC_EV_P6_BUS_TRANS_WB || pe == PMC_EV_P6_EMON_EST_TRANS || pe == PMC_EV_P6_EMON_FUSED_UOPS_RET || pe == PMC_EV_P6_EMON_KNI_COMP_INST_RET || pe == PMC_EV_P6_EMON_KNI_INST_RETIRED || pe == PMC_EV_P6_EMON_KNI_PREF_DISPATCHED || pe == PMC_EV_P6_EMON_KNI_PREF_MISS || pe == PMC_EV_P6_EMON_SSE_SSE2_COMP_INST_RETIRED || pe == PMC_EV_P6_EMON_SSE_SSE2_INST_RETIRED || pe == PMC_EV_P6_FP_MMX_TRANS) && (n > 1)) /* Only one mask keyword is allowed. */ return (-1); pmc_config->pm_caps |= PMC_CAP_QUALIFIER; } else if (KWMATCH(p, P6_KW_USR)) { pmc_config->pm_caps |= PMC_CAP_USER; } else return (-1); } /* post processing */ switch (pe) { /* * The following events default to an evmask of 0 */ /* default => 'self' */ case PMC_EV_P6_BUS_DRDY_CLOCKS: case PMC_EV_P6_BUS_LOCK_CLOCKS: case PMC_EV_P6_BUS_TRAN_BRD: case PMC_EV_P6_BUS_TRAN_RFO: case PMC_EV_P6_BUS_TRANS_WB: case PMC_EV_P6_BUS_TRAN_IFETCH: case PMC_EV_P6_BUS_TRAN_INVAL: case PMC_EV_P6_BUS_TRAN_PWR: case PMC_EV_P6_BUS_TRANS_P: case PMC_EV_P6_BUS_TRANS_IO: case PMC_EV_P6_BUS_TRAN_DEF: case PMC_EV_P6_BUS_TRAN_BURST: case PMC_EV_P6_BUS_TRAN_ANY: case PMC_EV_P6_BUS_TRAN_MEM: /* default => 'nta' */ case PMC_EV_P6_EMON_KNI_PREF_DISPATCHED: case PMC_EV_P6_EMON_KNI_PREF_MISS: /* default => 'packed and scalar' */ case PMC_EV_P6_EMON_KNI_INST_RETIRED: case PMC_EV_P6_EMON_KNI_COMP_INST_RET: /* default => 'mmx to fp transitions' */ case PMC_EV_P6_FP_MMX_TRANS: /* default => 'SSE Packed Single' */ case PMC_EV_P6_EMON_SSE_SSE2_INST_RETIRED: case PMC_EV_P6_EMON_SSE_SSE2_COMP_INST_RETIRED: /* default => 'all fused micro-ops' */ case PMC_EV_P6_EMON_FUSED_UOPS_RET: /* default => 'all transitions' */ case PMC_EV_P6_EMON_EST_TRANS: break; case PMC_EV_P6_MMX_UOPS_EXEC: evmask = 0x0F; /* only value allowed */ break; default: /* * For all other events, set the default event mask * to a logical OR of all the allowed event mask bits. */ if (evmask == 0 && pmask) { for (pm = pmask; pm->pm_name; pm++) evmask |= pm->pm_value; pmc_config->pm_caps |= PMC_CAP_QUALIFIER; } break; } if (pmc_config->pm_caps & PMC_CAP_QUALIFIER) pmc_config->pm_md.pm_ppro.pm_ppro_config |= P6_EVSEL_TO_UMASK(evmask); return (0); } #endif #if defined(__i386__) || defined(__amd64__) static int tsc_allocate_pmc(enum pmc_event pe, char *ctrspec, struct pmc_op_pmcallocate *pmc_config) { if (pe != PMC_EV_TSC_TSC) return (-1); /* TSC events must be unqualified. */ if (ctrspec && *ctrspec != '\0') return (-1); pmc_config->pm_md.pm_amd.pm_amd_config = 0; pmc_config->pm_caps |= PMC_CAP_READ; return (0); } #endif static struct pmc_event_alias generic_aliases[] = { EV_ALIAS("instructions", "SOFT-CLOCK.HARD"), EV_ALIAS(NULL, NULL) }; static int soft_allocate_pmc(enum pmc_event pe, char *ctrspec, struct pmc_op_pmcallocate *pmc_config) { (void)ctrspec; (void)pmc_config; if ((int)pe < PMC_EV_SOFT_FIRST || (int)pe > PMC_EV_SOFT_LAST) return (-1); pmc_config->pm_caps |= (PMC_CAP_READ | PMC_CAP_WRITE); return (0); } #if defined(__arm__) #if defined(__XSCALE__) static struct pmc_event_alias xscale_aliases[] = { EV_ALIAS("branches", "BRANCH_RETIRED"), EV_ALIAS("branch-mispredicts", "BRANCH_MISPRED"), EV_ALIAS("dc-misses", "DC_MISS"), EV_ALIAS("ic-misses", "IC_MISS"), EV_ALIAS("instructions", "INSTR_RETIRED"), EV_ALIAS(NULL, NULL) }; static int xscale_allocate_pmc(enum pmc_event pe, char *ctrspec __unused, struct pmc_op_pmcallocate *pmc_config __unused) { switch (pe) { default: break; } return (0); } #endif static struct pmc_event_alias armv7_aliases[] = { EV_ALIAS("dc-misses", "L1_DCACHE_REFILL"), EV_ALIAS("ic-misses", "L1_ICACHE_REFILL"), EV_ALIAS("instructions", "INSTR_EXECUTED"), EV_ALIAS(NULL, NULL) }; static int armv7_allocate_pmc(enum pmc_event pe, char *ctrspec __unused, struct pmc_op_pmcallocate *pmc_config __unused) { switch (pe) { default: break; } return (0); } #endif #if defined(__mips__) static struct pmc_event_alias mips24k_aliases[] = { EV_ALIAS("instructions", "INSTR_EXECUTED"), EV_ALIAS("branches", "BRANCH_COMPLETED"), EV_ALIAS("branch-mispredicts", "BRANCH_MISPRED"), EV_ALIAS(NULL, NULL) }; static struct pmc_event_alias octeon_aliases[] = { EV_ALIAS("instructions", "RET"), EV_ALIAS("branches", "BR"), EV_ALIAS("branch-mispredicts", "BRMIS"), EV_ALIAS(NULL, NULL) }; #define MIPS_KW_OS "os" #define MIPS_KW_USR "usr" #define MIPS_KW_ANYTHREAD "anythread" static int mips_allocate_pmc(enum pmc_event pe, char *ctrspec __unused, struct pmc_op_pmcallocate *pmc_config __unused) { char *p; (void) pe; pmc_config->pm_caps |= (PMC_CAP_READ | PMC_CAP_WRITE); while ((p = strsep(&ctrspec, ",")) != NULL) { if (KWMATCH(p, MIPS_KW_OS)) pmc_config->pm_caps |= PMC_CAP_SYSTEM; else if (KWMATCH(p, MIPS_KW_USR)) pmc_config->pm_caps |= PMC_CAP_USER; else if (KWMATCH(p, MIPS_KW_ANYTHREAD)) pmc_config->pm_caps |= (PMC_CAP_USER | PMC_CAP_SYSTEM); else return (-1); } return (0); } #endif /* __mips__ */ #if defined(__powerpc__) static struct pmc_event_alias ppc7450_aliases[] = { EV_ALIAS("instructions", "INSTR_COMPLETED"), EV_ALIAS("branches", "BRANCHES_COMPLETED"), EV_ALIAS("branch-mispredicts", "MISPREDICTED_BRANCHES"), EV_ALIAS(NULL, NULL) }; static struct pmc_event_alias ppc970_aliases[] = { EV_ALIAS("instructions", "INSTR_COMPLETED"), EV_ALIAS("cycles", "CYCLES"), EV_ALIAS(NULL, NULL) }; #define POWERPC_KW_OS "os" #define POWERPC_KW_USR "usr" #define POWERPC_KW_ANYTHREAD "anythread" static int powerpc_allocate_pmc(enum pmc_event pe, char *ctrspec __unused, struct pmc_op_pmcallocate *pmc_config __unused) { char *p; (void) pe; pmc_config->pm_caps |= (PMC_CAP_READ | PMC_CAP_WRITE); while ((p = strsep(&ctrspec, ",")) != NULL) { if (KWMATCH(p, POWERPC_KW_OS)) pmc_config->pm_caps |= PMC_CAP_SYSTEM; else if (KWMATCH(p, POWERPC_KW_USR)) pmc_config->pm_caps |= PMC_CAP_USER; else if (KWMATCH(p, POWERPC_KW_ANYTHREAD)) pmc_config->pm_caps |= (PMC_CAP_USER | PMC_CAP_SYSTEM); else return (-1); } return (0); } #endif /* __powerpc__ */ /* * Match an event name `name' with its canonical form. * * Matches are case insensitive and spaces, periods, underscores and * hyphen characters are considered to match each other. * * Returns 1 for a match, 0 otherwise. */ static int pmc_match_event_name(const char *name, const char *canonicalname) { int cc, nc; const unsigned char *c, *n; c = (const unsigned char *) canonicalname; n = (const unsigned char *) name; for (; (nc = *n) && (cc = *c); n++, c++) { if ((nc == ' ' || nc == '_' || nc == '-' || nc == '.') && (cc == ' ' || cc == '_' || cc == '-' || cc == '.')) continue; if (toupper(nc) == toupper(cc)) continue; return (0); } if (*n == '\0' && *c == '\0') return (1); return (0); } /* * Match an event name against all the event named supported by a * PMC class. * * Returns an event descriptor pointer on match or NULL otherwise. */ static const struct pmc_event_descr * pmc_match_event_class(const char *name, const struct pmc_class_descr *pcd) { size_t n; const struct pmc_event_descr *ev; ev = pcd->pm_evc_event_table; for (n = 0; n < pcd->pm_evc_event_table_size; n++, ev++) if (pmc_match_event_name(name, ev->pm_ev_name)) return (ev); return (NULL); } static int pmc_mdep_is_compatible_class(enum pmc_class pc) { size_t n; for (n = 0; n < pmc_mdep_class_list_size; n++) if (pmc_mdep_class_list[n] == pc) return (1); return (0); } /* * API entry points */ int pmc_allocate(const char *ctrspec, enum pmc_mode mode, uint32_t flags, int cpu, pmc_id_t *pmcid) { size_t n; int retval; char *r, *spec_copy; const char *ctrname; const struct pmc_event_descr *ev; const struct pmc_event_alias *alias; struct pmc_op_pmcallocate pmc_config; const struct pmc_class_descr *pcd; spec_copy = NULL; retval = -1; if (mode != PMC_MODE_SS && mode != PMC_MODE_TS && mode != PMC_MODE_SC && mode != PMC_MODE_TC) { errno = EINVAL; goto out; } /* replace an event alias with the canonical event specifier */ if (pmc_mdep_event_aliases) for (alias = pmc_mdep_event_aliases; alias->pm_alias; alias++) if (!strcasecmp(ctrspec, alias->pm_alias)) { spec_copy = strdup(alias->pm_spec); break; } if (spec_copy == NULL) spec_copy = strdup(ctrspec); r = spec_copy; ctrname = strsep(&r, ","); /* * If a explicit class prefix was given by the user, restrict the * search for the event to the specified PMC class. */ ev = NULL; for (n = 0; n < PMC_CLASS_TABLE_SIZE; n++) { pcd = pmc_class_table[n]; if (pmc_mdep_is_compatible_class(pcd->pm_evc_class) && strncasecmp(ctrname, pcd->pm_evc_name, pcd->pm_evc_name_size) == 0) { if ((ev = pmc_match_event_class(ctrname + pcd->pm_evc_name_size, pcd)) == NULL) { errno = EINVAL; goto out; } break; } } /* * Otherwise, search for this event in all compatible PMC * classes. */ for (n = 0; ev == NULL && n < PMC_CLASS_TABLE_SIZE; n++) { pcd = pmc_class_table[n]; if (pmc_mdep_is_compatible_class(pcd->pm_evc_class)) ev = pmc_match_event_class(ctrname, pcd); } if (ev == NULL) { errno = EINVAL; goto out; } bzero(&pmc_config, sizeof(pmc_config)); pmc_config.pm_ev = ev->pm_ev_code; pmc_config.pm_class = pcd->pm_evc_class; pmc_config.pm_cpu = cpu; pmc_config.pm_mode = mode; pmc_config.pm_flags = flags; if (PMC_IS_SAMPLING_MODE(mode)) pmc_config.pm_caps |= PMC_CAP_INTERRUPT; if (pcd->pm_evc_allocate_pmc(ev->pm_ev_code, r, &pmc_config) < 0) { errno = EINVAL; goto out; } if (PMC_CALL(PMCALLOCATE, &pmc_config) < 0) goto out; *pmcid = pmc_config.pm_pmcid; retval = 0; out: if (spec_copy) free(spec_copy); return (retval); } int pmc_attach(pmc_id_t pmc, pid_t pid) { struct pmc_op_pmcattach pmc_attach_args; pmc_attach_args.pm_pmc = pmc; pmc_attach_args.pm_pid = pid; return (PMC_CALL(PMCATTACH, &pmc_attach_args)); } int pmc_capabilities(pmc_id_t pmcid, uint32_t *caps) { unsigned int i; enum pmc_class cl; cl = PMC_ID_TO_CLASS(pmcid); for (i = 0; i < cpu_info.pm_nclass; i++) if (cpu_info.pm_classes[i].pm_class == cl) { *caps = cpu_info.pm_classes[i].pm_caps; return (0); } errno = EINVAL; return (-1); } int pmc_configure_logfile(int fd) { struct pmc_op_configurelog cla; cla.pm_logfd = fd; if (PMC_CALL(CONFIGURELOG, &cla) < 0) return (-1); return (0); } int pmc_cpuinfo(const struct pmc_cpuinfo **pci) { if (pmc_syscall == -1) { errno = ENXIO; return (-1); } *pci = &cpu_info; return (0); } int pmc_detach(pmc_id_t pmc, pid_t pid) { struct pmc_op_pmcattach pmc_detach_args; pmc_detach_args.pm_pmc = pmc; pmc_detach_args.pm_pid = pid; return (PMC_CALL(PMCDETACH, &pmc_detach_args)); } int pmc_disable(int cpu, int pmc) { struct pmc_op_pmcadmin ssa; ssa.pm_cpu = cpu; ssa.pm_pmc = pmc; ssa.pm_state = PMC_STATE_DISABLED; return (PMC_CALL(PMCADMIN, &ssa)); } int pmc_enable(int cpu, int pmc) { struct pmc_op_pmcadmin ssa; ssa.pm_cpu = cpu; ssa.pm_pmc = pmc; ssa.pm_state = PMC_STATE_FREE; return (PMC_CALL(PMCADMIN, &ssa)); } /* * Return a list of events known to a given PMC class. 'cl' is the * PMC class identifier, 'eventnames' is the returned list of 'const * char *' pointers pointing to the names of the events. 'nevents' is * the number of event name pointers returned. * * The space for 'eventnames' is allocated using malloc(3). The caller * is responsible for freeing this space when done. */ int pmc_event_names_of_class(enum pmc_class cl, const char ***eventnames, int *nevents) { int count; const char **names; const struct pmc_event_descr *ev; switch (cl) { case PMC_CLASS_IAF: ev = iaf_event_table; count = PMC_EVENT_TABLE_SIZE(iaf); break; case PMC_CLASS_IAP: /* * Return the most appropriate set of event name * spellings for the current CPU. */ switch (cpu_info.pm_cputype) { default: case PMC_CPU_INTEL_ATOM: ev = atom_event_table; count = PMC_EVENT_TABLE_SIZE(atom); break; case PMC_CPU_INTEL_ATOM_SILVERMONT: ev = atom_silvermont_event_table; count = PMC_EVENT_TABLE_SIZE(atom_silvermont); break; case PMC_CPU_INTEL_CORE: ev = core_event_table; count = PMC_EVENT_TABLE_SIZE(core); break; case PMC_CPU_INTEL_CORE2: case PMC_CPU_INTEL_CORE2EXTREME: ev = core2_event_table; count = PMC_EVENT_TABLE_SIZE(core2); break; case PMC_CPU_INTEL_COREI7: ev = corei7_event_table; count = PMC_EVENT_TABLE_SIZE(corei7); break; case PMC_CPU_INTEL_NEHALEM_EX: ev = nehalem_ex_event_table; count = PMC_EVENT_TABLE_SIZE(nehalem_ex); break; case PMC_CPU_INTEL_HASWELL: ev = haswell_event_table; count = PMC_EVENT_TABLE_SIZE(haswell); break; case PMC_CPU_INTEL_HASWELL_XEON: ev = haswell_xeon_event_table; count = PMC_EVENT_TABLE_SIZE(haswell_xeon); break; case PMC_CPU_INTEL_IVYBRIDGE: ev = ivybridge_event_table; count = PMC_EVENT_TABLE_SIZE(ivybridge); break; case PMC_CPU_INTEL_IVYBRIDGE_XEON: ev = ivybridge_xeon_event_table; count = PMC_EVENT_TABLE_SIZE(ivybridge_xeon); break; case PMC_CPU_INTEL_SANDYBRIDGE: ev = sandybridge_event_table; count = PMC_EVENT_TABLE_SIZE(sandybridge); break; case PMC_CPU_INTEL_SANDYBRIDGE_XEON: ev = sandybridge_xeon_event_table; count = PMC_EVENT_TABLE_SIZE(sandybridge_xeon); break; case PMC_CPU_INTEL_WESTMERE: ev = westmere_event_table; count = PMC_EVENT_TABLE_SIZE(westmere); break; case PMC_CPU_INTEL_WESTMERE_EX: ev = westmere_ex_event_table; count = PMC_EVENT_TABLE_SIZE(westmere_ex); break; } break; case PMC_CLASS_UCF: ev = ucf_event_table; count = PMC_EVENT_TABLE_SIZE(ucf); break; case PMC_CLASS_UCP: /* * Return the most appropriate set of event name * spellings for the current CPU. */ switch (cpu_info.pm_cputype) { default: case PMC_CPU_INTEL_COREI7: ev = corei7uc_event_table; count = PMC_EVENT_TABLE_SIZE(corei7uc); break; case PMC_CPU_INTEL_HASWELL: ev = haswelluc_event_table; count = PMC_EVENT_TABLE_SIZE(haswelluc); break; case PMC_CPU_INTEL_SANDYBRIDGE: ev = sandybridgeuc_event_table; count = PMC_EVENT_TABLE_SIZE(sandybridgeuc); break; case PMC_CPU_INTEL_WESTMERE: ev = westmereuc_event_table; count = PMC_EVENT_TABLE_SIZE(westmereuc); break; } break; case PMC_CLASS_TSC: ev = tsc_event_table; count = PMC_EVENT_TABLE_SIZE(tsc); break; case PMC_CLASS_K7: ev = k7_event_table; count = PMC_EVENT_TABLE_SIZE(k7); break; case PMC_CLASS_K8: ev = k8_event_table; count = PMC_EVENT_TABLE_SIZE(k8); break; case PMC_CLASS_P4: ev = p4_event_table; count = PMC_EVENT_TABLE_SIZE(p4); break; case PMC_CLASS_P5: ev = p5_event_table; count = PMC_EVENT_TABLE_SIZE(p5); break; case PMC_CLASS_P6: ev = p6_event_table; count = PMC_EVENT_TABLE_SIZE(p6); break; case PMC_CLASS_XSCALE: ev = xscale_event_table; count = PMC_EVENT_TABLE_SIZE(xscale); break; case PMC_CLASS_ARMV7: ev = armv7_event_table; count = PMC_EVENT_TABLE_SIZE(armv7); break; case PMC_CLASS_MIPS24K: ev = mips24k_event_table; count = PMC_EVENT_TABLE_SIZE(mips24k); break; case PMC_CLASS_OCTEON: ev = octeon_event_table; count = PMC_EVENT_TABLE_SIZE(octeon); break; case PMC_CLASS_PPC7450: ev = ppc7450_event_table; count = PMC_EVENT_TABLE_SIZE(ppc7450); break; case PMC_CLASS_PPC970: ev = ppc970_event_table; count = PMC_EVENT_TABLE_SIZE(ppc970); break; case PMC_CLASS_SOFT: ev = soft_event_table; count = soft_event_info.pm_nevent; break; default: errno = EINVAL; return (-1); } if ((names = malloc(count * sizeof(const char *))) == NULL) return (-1); *eventnames = names; *nevents = count; for (;count--; ev++, names++) *names = ev->pm_ev_name; return (0); } int pmc_flush_logfile(void) { return (PMC_CALL(FLUSHLOG,0)); } int pmc_close_logfile(void) { return (PMC_CALL(CLOSELOG,0)); } int pmc_get_driver_stats(struct pmc_driverstats *ds) { struct pmc_op_getdriverstats gms; if (PMC_CALL(GETDRIVERSTATS, &gms) < 0) return (-1); /* copy out fields in the current userland<->library interface */ ds->pm_intr_ignored = gms.pm_intr_ignored; ds->pm_intr_processed = gms.pm_intr_processed; ds->pm_intr_bufferfull = gms.pm_intr_bufferfull; ds->pm_syscalls = gms.pm_syscalls; ds->pm_syscall_errors = gms.pm_syscall_errors; ds->pm_buffer_requests = gms.pm_buffer_requests; ds->pm_buffer_requests_failed = gms.pm_buffer_requests_failed; ds->pm_log_sweeps = gms.pm_log_sweeps; return (0); } int pmc_get_msr(pmc_id_t pmc, uint32_t *msr) { struct pmc_op_getmsr gm; gm.pm_pmcid = pmc; if (PMC_CALL(PMCGETMSR, &gm) < 0) return (-1); *msr = gm.pm_msr; return (0); } int pmc_init(void) { int error, pmc_mod_id; unsigned int n; uint32_t abi_version; struct module_stat pmc_modstat; struct pmc_op_getcpuinfo op_cpu_info; #if defined(__amd64__) || defined(__i386__) int cpu_has_iaf_counters; unsigned int t; #endif if (pmc_syscall != -1) /* already inited */ return (0); /* retrieve the system call number from the KLD */ if ((pmc_mod_id = modfind(PMC_MODULE_NAME)) < 0) return (-1); pmc_modstat.version = sizeof(struct module_stat); if ((error = modstat(pmc_mod_id, &pmc_modstat)) < 0) return (-1); pmc_syscall = pmc_modstat.data.intval; /* check the kernel module's ABI against our compiled-in version */ abi_version = PMC_VERSION; if (PMC_CALL(GETMODULEVERSION, &abi_version) < 0) return (pmc_syscall = -1); /* ignore patch & minor numbers for the comparision */ if ((abi_version & 0xFF000000) != (PMC_VERSION & 0xFF000000)) { errno = EPROGMISMATCH; return (pmc_syscall = -1); } if (PMC_CALL(GETCPUINFO, &op_cpu_info) < 0) return (pmc_syscall = -1); cpu_info.pm_cputype = op_cpu_info.pm_cputype; cpu_info.pm_ncpu = op_cpu_info.pm_ncpu; cpu_info.pm_npmc = op_cpu_info.pm_npmc; cpu_info.pm_nclass = op_cpu_info.pm_nclass; for (n = 0; n < cpu_info.pm_nclass; n++) cpu_info.pm_classes[n] = op_cpu_info.pm_classes[n]; pmc_class_table = malloc(PMC_CLASS_TABLE_SIZE * sizeof(struct pmc_class_descr *)); if (pmc_class_table == NULL) return (-1); for (n = 0; n < PMC_CLASS_TABLE_SIZE; n++) pmc_class_table[n] = NULL; /* * Get soft events list. */ soft_event_info.pm_class = PMC_CLASS_SOFT; if (PMC_CALL(GETDYNEVENTINFO, &soft_event_info) < 0) return (pmc_syscall = -1); /* Map soft events to static list. */ for (n = 0; n < soft_event_info.pm_nevent; n++) { soft_event_table[n].pm_ev_name = soft_event_info.pm_events[n].pm_ev_name; soft_event_table[n].pm_ev_code = soft_event_info.pm_events[n].pm_ev_code; } soft_class_table_descr.pm_evc_event_table_size = \ soft_event_info.pm_nevent; soft_class_table_descr.pm_evc_event_table = \ soft_event_table; /* * Fill in the class table. */ n = 0; /* Fill soft events information. */ pmc_class_table[n++] = &soft_class_table_descr; #if defined(__amd64__) || defined(__i386__) if (cpu_info.pm_cputype != PMC_CPU_GENERIC) pmc_class_table[n++] = &tsc_class_table_descr; /* * Check if this CPU has fixed function counters. */ cpu_has_iaf_counters = 0; for (t = 0; t < cpu_info.pm_nclass; t++) if (cpu_info.pm_classes[t].pm_class == PMC_CLASS_IAF && cpu_info.pm_classes[t].pm_num > 0) cpu_has_iaf_counters = 1; #endif #define PMC_MDEP_INIT(C) do { \ pmc_mdep_event_aliases = C##_aliases; \ pmc_mdep_class_list = C##_pmc_classes; \ pmc_mdep_class_list_size = \ PMC_TABLE_SIZE(C##_pmc_classes); \ } while (0) #define PMC_MDEP_INIT_INTEL_V2(C) do { \ PMC_MDEP_INIT(C); \ pmc_class_table[n++] = &iaf_class_table_descr; \ if (!cpu_has_iaf_counters) \ pmc_mdep_event_aliases = \ C##_aliases_without_iaf; \ pmc_class_table[n] = &C##_class_table_descr; \ } while (0) /* Configure the event name parser. */ switch (cpu_info.pm_cputype) { #if defined(__i386__) case PMC_CPU_AMD_K7: PMC_MDEP_INIT(k7); pmc_class_table[n] = &k7_class_table_descr; break; case PMC_CPU_INTEL_P5: PMC_MDEP_INIT(p5); pmc_class_table[n] = &p5_class_table_descr; break; case PMC_CPU_INTEL_P6: /* P6 ... Pentium M CPUs have */ case PMC_CPU_INTEL_PII: /* similar PMCs. */ case PMC_CPU_INTEL_PIII: case PMC_CPU_INTEL_PM: PMC_MDEP_INIT(p6); pmc_class_table[n] = &p6_class_table_descr; break; #endif #if defined(__amd64__) || defined(__i386__) case PMC_CPU_AMD_K8: PMC_MDEP_INIT(k8); pmc_class_table[n] = &k8_class_table_descr; break; case PMC_CPU_INTEL_ATOM: PMC_MDEP_INIT_INTEL_V2(atom); break; case PMC_CPU_INTEL_ATOM_SILVERMONT: PMC_MDEP_INIT_INTEL_V2(atom_silvermont); break; case PMC_CPU_INTEL_CORE: PMC_MDEP_INIT(core); pmc_class_table[n] = &core_class_table_descr; break; case PMC_CPU_INTEL_CORE2: case PMC_CPU_INTEL_CORE2EXTREME: PMC_MDEP_INIT_INTEL_V2(core2); break; case PMC_CPU_INTEL_COREI7: pmc_class_table[n++] = &ucf_class_table_descr; pmc_class_table[n++] = &corei7uc_class_table_descr; PMC_MDEP_INIT_INTEL_V2(corei7); break; case PMC_CPU_INTEL_NEHALEM_EX: PMC_MDEP_INIT_INTEL_V2(nehalem_ex); break; case PMC_CPU_INTEL_HASWELL: pmc_class_table[n++] = &ucf_class_table_descr; pmc_class_table[n++] = &haswelluc_class_table_descr; PMC_MDEP_INIT_INTEL_V2(haswell); break; case PMC_CPU_INTEL_HASWELL_XEON: PMC_MDEP_INIT_INTEL_V2(haswell_xeon); break; case PMC_CPU_INTEL_IVYBRIDGE: PMC_MDEP_INIT_INTEL_V2(ivybridge); break; case PMC_CPU_INTEL_IVYBRIDGE_XEON: PMC_MDEP_INIT_INTEL_V2(ivybridge_xeon); break; case PMC_CPU_INTEL_SANDYBRIDGE: pmc_class_table[n++] = &ucf_class_table_descr; pmc_class_table[n++] = &sandybridgeuc_class_table_descr; PMC_MDEP_INIT_INTEL_V2(sandybridge); break; case PMC_CPU_INTEL_SANDYBRIDGE_XEON: PMC_MDEP_INIT_INTEL_V2(sandybridge_xeon); break; case PMC_CPU_INTEL_WESTMERE: pmc_class_table[n++] = &ucf_class_table_descr; pmc_class_table[n++] = &westmereuc_class_table_descr; PMC_MDEP_INIT_INTEL_V2(westmere); break; case PMC_CPU_INTEL_WESTMERE_EX: PMC_MDEP_INIT_INTEL_V2(westmere_ex); break; case PMC_CPU_INTEL_PIV: PMC_MDEP_INIT(p4); pmc_class_table[n] = &p4_class_table_descr; break; #endif case PMC_CPU_GENERIC: PMC_MDEP_INIT(generic); break; #if defined(__arm__) #if defined(__XSCALE__) case PMC_CPU_INTEL_XSCALE: PMC_MDEP_INIT(xscale); pmc_class_table[n] = &xscale_class_table_descr; break; #endif case PMC_CPU_ARMV7: PMC_MDEP_INIT(armv7); pmc_class_table[n] = &armv7_class_table_descr; break; #endif #if defined(__mips__) case PMC_CPU_MIPS_24K: PMC_MDEP_INIT(mips24k); pmc_class_table[n] = &mips24k_class_table_descr; break; case PMC_CPU_MIPS_OCTEON: PMC_MDEP_INIT(octeon); pmc_class_table[n] = &octeon_class_table_descr; break; #endif /* __mips__ */ #if defined(__powerpc__) case PMC_CPU_PPC_7450: PMC_MDEP_INIT(ppc7450); pmc_class_table[n] = &ppc7450_class_table_descr; break; case PMC_CPU_PPC_970: PMC_MDEP_INIT(ppc970); pmc_class_table[n] = &ppc970_class_table_descr; break; #endif default: /* * Some kind of CPU this version of the library knows nothing * about. This shouldn't happen since the abi version check * should have caught this. */ errno = ENXIO; return (pmc_syscall = -1); } return (0); } const char * pmc_name_of_capability(enum pmc_caps cap) { int i; /* * 'cap' should have a single bit set and should be in * range. */ if ((cap & (cap - 1)) || cap < PMC_CAP_FIRST || cap > PMC_CAP_LAST) { errno = EINVAL; return (NULL); } i = ffs(cap); return (pmc_capability_names[i - 1]); } const char * pmc_name_of_class(enum pmc_class pc) { if ((int) pc >= PMC_CLASS_FIRST && pc <= PMC_CLASS_LAST) return (pmc_class_names[pc]); errno = EINVAL; return (NULL); } const char * pmc_name_of_cputype(enum pmc_cputype cp) { size_t n; for (n = 0; n < PMC_TABLE_SIZE(pmc_cputype_names); n++) if (cp == pmc_cputype_names[n].pm_cputype) return (pmc_cputype_names[n].pm_name); errno = EINVAL; return (NULL); } const char * pmc_name_of_disposition(enum pmc_disp pd) { if ((int) pd >= PMC_DISP_FIRST && pd <= PMC_DISP_LAST) return (pmc_disposition_names[pd]); errno = EINVAL; return (NULL); } const char * _pmc_name_of_event(enum pmc_event pe, enum pmc_cputype cpu) { const struct pmc_event_descr *ev, *evfence; ev = evfence = NULL; if (pe >= PMC_EV_IAF_FIRST && pe <= PMC_EV_IAF_LAST) { ev = iaf_event_table; evfence = iaf_event_table + PMC_EVENT_TABLE_SIZE(iaf); } else if (pe >= PMC_EV_IAP_FIRST && pe <= PMC_EV_IAP_LAST) { switch (cpu) { case PMC_CPU_INTEL_ATOM: ev = atom_event_table; evfence = atom_event_table + PMC_EVENT_TABLE_SIZE(atom); break; case PMC_CPU_INTEL_ATOM_SILVERMONT: ev = atom_silvermont_event_table; evfence = atom_silvermont_event_table + PMC_EVENT_TABLE_SIZE(atom_silvermont); break; case PMC_CPU_INTEL_CORE: ev = core_event_table; evfence = core_event_table + PMC_EVENT_TABLE_SIZE(core); break; case PMC_CPU_INTEL_CORE2: case PMC_CPU_INTEL_CORE2EXTREME: ev = core2_event_table; evfence = core2_event_table + PMC_EVENT_TABLE_SIZE(core2); break; case PMC_CPU_INTEL_COREI7: ev = corei7_event_table; evfence = corei7_event_table + PMC_EVENT_TABLE_SIZE(corei7); break; case PMC_CPU_INTEL_NEHALEM_EX: ev = nehalem_ex_event_table; evfence = nehalem_ex_event_table + PMC_EVENT_TABLE_SIZE(nehalem_ex); break; case PMC_CPU_INTEL_HASWELL: ev = haswell_event_table; evfence = haswell_event_table + PMC_EVENT_TABLE_SIZE(haswell); break; case PMC_CPU_INTEL_HASWELL_XEON: ev = haswell_xeon_event_table; evfence = haswell_xeon_event_table + PMC_EVENT_TABLE_SIZE(haswell_xeon); break; case PMC_CPU_INTEL_IVYBRIDGE: ev = ivybridge_event_table; evfence = ivybridge_event_table + PMC_EVENT_TABLE_SIZE(ivybridge); break; case PMC_CPU_INTEL_IVYBRIDGE_XEON: ev = ivybridge_xeon_event_table; evfence = ivybridge_xeon_event_table + PMC_EVENT_TABLE_SIZE(ivybridge_xeon); break; case PMC_CPU_INTEL_SANDYBRIDGE: ev = sandybridge_event_table; evfence = sandybridge_event_table + PMC_EVENT_TABLE_SIZE(sandybridge); break; case PMC_CPU_INTEL_SANDYBRIDGE_XEON: ev = sandybridge_xeon_event_table; evfence = sandybridge_xeon_event_table + PMC_EVENT_TABLE_SIZE(sandybridge_xeon); break; case PMC_CPU_INTEL_WESTMERE: ev = westmere_event_table; evfence = westmere_event_table + PMC_EVENT_TABLE_SIZE(westmere); break; case PMC_CPU_INTEL_WESTMERE_EX: ev = westmere_ex_event_table; evfence = westmere_ex_event_table + PMC_EVENT_TABLE_SIZE(westmere_ex); break; default: /* Unknown CPU type. */ break; } } else if (pe >= PMC_EV_UCF_FIRST && pe <= PMC_EV_UCF_LAST) { ev = ucf_event_table; evfence = ucf_event_table + PMC_EVENT_TABLE_SIZE(ucf); } else if (pe >= PMC_EV_UCP_FIRST && pe <= PMC_EV_UCP_LAST) { switch (cpu) { case PMC_CPU_INTEL_COREI7: ev = corei7uc_event_table; evfence = corei7uc_event_table + PMC_EVENT_TABLE_SIZE(corei7uc); break; case PMC_CPU_INTEL_SANDYBRIDGE: ev = sandybridgeuc_event_table; evfence = sandybridgeuc_event_table + PMC_EVENT_TABLE_SIZE(sandybridgeuc); break; case PMC_CPU_INTEL_WESTMERE: ev = westmereuc_event_table; evfence = westmereuc_event_table + PMC_EVENT_TABLE_SIZE(westmereuc); break; default: /* Unknown CPU type. */ break; } } else if (pe >= PMC_EV_K7_FIRST && pe <= PMC_EV_K7_LAST) { ev = k7_event_table; evfence = k7_event_table + PMC_EVENT_TABLE_SIZE(k7); } else if (pe >= PMC_EV_K8_FIRST && pe <= PMC_EV_K8_LAST) { ev = k8_event_table; evfence = k8_event_table + PMC_EVENT_TABLE_SIZE(k8); } else if (pe >= PMC_EV_P4_FIRST && pe <= PMC_EV_P4_LAST) { ev = p4_event_table; evfence = p4_event_table + PMC_EVENT_TABLE_SIZE(p4); } else if (pe >= PMC_EV_P5_FIRST && pe <= PMC_EV_P5_LAST) { ev = p5_event_table; evfence = p5_event_table + PMC_EVENT_TABLE_SIZE(p5); } else if (pe >= PMC_EV_P6_FIRST && pe <= PMC_EV_P6_LAST) { ev = p6_event_table; evfence = p6_event_table + PMC_EVENT_TABLE_SIZE(p6); } else if (pe >= PMC_EV_XSCALE_FIRST && pe <= PMC_EV_XSCALE_LAST) { ev = xscale_event_table; evfence = xscale_event_table + PMC_EVENT_TABLE_SIZE(xscale); } else if (pe >= PMC_EV_ARMV7_FIRST && pe <= PMC_EV_ARMV7_LAST) { ev = armv7_event_table; evfence = armv7_event_table + PMC_EVENT_TABLE_SIZE(armv7); } else if (pe >= PMC_EV_MIPS24K_FIRST && pe <= PMC_EV_MIPS24K_LAST) { ev = mips24k_event_table; evfence = mips24k_event_table + PMC_EVENT_TABLE_SIZE(mips24k); } else if (pe >= PMC_EV_OCTEON_FIRST && pe <= PMC_EV_OCTEON_LAST) { ev = octeon_event_table; evfence = octeon_event_table + PMC_EVENT_TABLE_SIZE(octeon); } else if (pe >= PMC_EV_PPC7450_FIRST && pe <= PMC_EV_PPC7450_LAST) { ev = ppc7450_event_table; evfence = ppc7450_event_table + PMC_EVENT_TABLE_SIZE(ppc7450); } else if (pe >= PMC_EV_PPC970_FIRST && pe <= PMC_EV_PPC970_LAST) { ev = ppc970_event_table; evfence = ppc970_event_table + PMC_EVENT_TABLE_SIZE(ppc970); } else if (pe == PMC_EV_TSC_TSC) { ev = tsc_event_table; evfence = tsc_event_table + PMC_EVENT_TABLE_SIZE(tsc); } else if ((int)pe >= PMC_EV_SOFT_FIRST && (int)pe <= PMC_EV_SOFT_LAST) { ev = soft_event_table; evfence = soft_event_table + soft_event_info.pm_nevent; } for (; ev != evfence; ev++) if (pe == ev->pm_ev_code) return (ev->pm_ev_name); return (NULL); } const char * pmc_name_of_event(enum pmc_event pe) { const char *n; if ((n = _pmc_name_of_event(pe, cpu_info.pm_cputype)) != NULL) return (n); errno = EINVAL; return (NULL); } const char * pmc_name_of_mode(enum pmc_mode pm) { if ((int) pm >= PMC_MODE_FIRST && pm <= PMC_MODE_LAST) return (pmc_mode_names[pm]); errno = EINVAL; return (NULL); } const char * pmc_name_of_state(enum pmc_state ps) { if ((int) ps >= PMC_STATE_FIRST && ps <= PMC_STATE_LAST) return (pmc_state_names[ps]); errno = EINVAL; return (NULL); } int pmc_ncpu(void) { if (pmc_syscall == -1) { errno = ENXIO; return (-1); } return (cpu_info.pm_ncpu); } int pmc_npmc(int cpu) { if (pmc_syscall == -1) { errno = ENXIO; return (-1); } if (cpu < 0 || cpu >= (int) cpu_info.pm_ncpu) { errno = EINVAL; return (-1); } return (cpu_info.pm_npmc); } int pmc_pmcinfo(int cpu, struct pmc_pmcinfo **ppmci) { int nbytes, npmc; struct pmc_op_getpmcinfo *pmci; if ((npmc = pmc_npmc(cpu)) < 0) return (-1); nbytes = sizeof(struct pmc_op_getpmcinfo) + npmc * sizeof(struct pmc_info); if ((pmci = calloc(1, nbytes)) == NULL) return (-1); pmci->pm_cpu = cpu; if (PMC_CALL(GETPMCINFO, pmci) < 0) { free(pmci); return (-1); } /* kernel<->library, library<->userland interfaces are identical */ *ppmci = (struct pmc_pmcinfo *) pmci; return (0); } int pmc_read(pmc_id_t pmc, pmc_value_t *value) { struct pmc_op_pmcrw pmc_read_op; pmc_read_op.pm_pmcid = pmc; pmc_read_op.pm_flags = PMC_F_OLDVALUE; pmc_read_op.pm_value = -1; if (PMC_CALL(PMCRW, &pmc_read_op) < 0) return (-1); *value = pmc_read_op.pm_value; return (0); } int pmc_release(pmc_id_t pmc) { struct pmc_op_simple pmc_release_args; pmc_release_args.pm_pmcid = pmc; return (PMC_CALL(PMCRELEASE, &pmc_release_args)); } int pmc_rw(pmc_id_t pmc, pmc_value_t newvalue, pmc_value_t *oldvaluep) { struct pmc_op_pmcrw pmc_rw_op; pmc_rw_op.pm_pmcid = pmc; pmc_rw_op.pm_flags = PMC_F_NEWVALUE | PMC_F_OLDVALUE; pmc_rw_op.pm_value = newvalue; if (PMC_CALL(PMCRW, &pmc_rw_op) < 0) return (-1); *oldvaluep = pmc_rw_op.pm_value; return (0); } int pmc_set(pmc_id_t pmc, pmc_value_t value) { struct pmc_op_pmcsetcount sc; sc.pm_pmcid = pmc; sc.pm_count = value; if (PMC_CALL(PMCSETCOUNT, &sc) < 0) return (-1); return (0); } int pmc_start(pmc_id_t pmc) { struct pmc_op_simple pmc_start_args; pmc_start_args.pm_pmcid = pmc; return (PMC_CALL(PMCSTART, &pmc_start_args)); } int pmc_stop(pmc_id_t pmc) { struct pmc_op_simple pmc_stop_args; pmc_stop_args.pm_pmcid = pmc; return (PMC_CALL(PMCSTOP, &pmc_stop_args)); } int pmc_width(pmc_id_t pmcid, uint32_t *width) { unsigned int i; enum pmc_class cl; cl = PMC_ID_TO_CLASS(pmcid); for (i = 0; i < cpu_info.pm_nclass; i++) if (cpu_info.pm_classes[i].pm_class == cl) { *width = cpu_info.pm_classes[i].pm_width; return (0); } errno = EINVAL; return (-1); } int pmc_write(pmc_id_t pmc, pmc_value_t value) { struct pmc_op_pmcrw pmc_write_op; pmc_write_op.pm_pmcid = pmc; pmc_write_op.pm_flags = PMC_F_NEWVALUE; pmc_write_op.pm_value = value; return (PMC_CALL(PMCRW, &pmc_write_op)); } int pmc_writelog(uint32_t userdata) { struct pmc_op_writelog wl; wl.pm_userdata = userdata; return (PMC_CALL(WRITELOG, &wl)); }