perf_event_uncore_lib.c

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
 
#include "papi.h"
 
char *get_uncore_event(char *event, int size) {
 
    const PAPI_hw_info_t *hwinfo;
 
    hwinfo = PAPI_get_hardware_info();
    if ( hwinfo == NULL ) {
        return NULL;
    }
 
    if (hwinfo->vendor == PAPI_VENDOR_INTEL) {
 
        if ( hwinfo->cpuid_family == 6) {
 
            switch(hwinfo->cpuid_model) {
 
            case 26:
            case 30:
            case 31: /* Nehalem */
            case 46: /* Nehalem EX */
            strncpy(event,"nhm_unc::UNC_CLK_UNHALTED",size);
            return event;
            break;
 
            case 37:
            case 44: /* Westmere */
            case 47: /* Westmere EX */
            strncpy(event,"wsm_unc::UNC_CLK_UNHALTED",size);
            return event;
            break;
 
            case 42: /* SandyBridge */
            strncpy(event,"snb_unc_cbo0::UNC_CLOCKTICKS",size);
            return event;
            break;
 
            case 58: /* IvyBridge */
            strncpy(event,"ivb_unc_cbo0::UNC_CLOCKTICKS",size);
            return event;
            break;
 
            case 62: /* Ivy Trail */
            case 45: /* SandyBridge EP */
            strncpy(event,"snbep_unc_imc0::UNC_M_CLOCKTICKS",size);
            return event;
            break;
 
            case 60:
            case 70:
            case 69: /* Haswell: note libpfm4 has no haswell unc support */
            return NULL;
            break;
 
            case 63: /*haswell EP*/
            strncpy(event,"hswep_unc_cbo0::UNC_C_CLOCKTICKS",size);
            return event;
            break;
 
            case 61:
            case 71:
            case 86: /* Broadwell: note libpfm4 has no broadwell unc support */
            return NULL;
            break;
 
            case 79: /* Broadwell-EP */
            strncpy(event,"bdx_unc_cbo0::UNC_C_CLOCKTICKS",size);
            return event;
            break;
 
            case 78:
            case 94: /* Skylake: note libpfm4 has no skylake unc support */
            return NULL;
            break;
 
            case 85: /* Skylake-X */
                /* note libpfm4 has no skylake-x unc support */
            return NULL;
            break;
 
            case 87: /*Knights Landing*/
            strncpy(event,"knl_unc_imc0::UNC_M_D_CLOCKTICKS",size);
            return event;
            break;
            }
        }
        return NULL;
    }
    else if (hwinfo->vendor == PAPI_VENDOR_AMD) {
        if ( hwinfo->cpuid_family == 21) {
            /* For kernel 3.9 at least */
            strncpy(event,"DRAM_ACCESSES:ALL",size);
            return event;
        }
        return NULL;
    }
 
    return NULL;
}
 
 
char *get_uncore_cbox_event(char *event_name, char *uncore_base, int size) {
 
    const PAPI_hw_info_t *hwinfo;
 
    hwinfo = PAPI_get_hardware_info();
    if ( hwinfo == NULL ) {
        return NULL;
    }
 
    if (hwinfo->vendor == PAPI_VENDOR_INTEL) {
 
        if ( hwinfo->cpuid_family == 6) {
 
            switch(hwinfo->cpuid_model) {
 
            case 26:
            case 30:
            case 31: /* Nehalem */
            case 46: /* Nehalem EX */
            /* No CBOX event? */
            return NULL;
            break;
 
            case 37:
            case 44: /* Westmere */
            case 47: /* Westmere EX */
            /* No CBOX event? */
            return NULL;
            break;
 
            case 42: /* SandyBridge */
            strncpy(event_name,"UNC_CBO_CACHE_LOOKUP:STATE_I:ANY_FILTER",size);
            strncpy(uncore_base,"snb_unc_cbo",size);
            return event_name;
            break;
 
            case 58: /* IvyBridge */
            strncpy(event_name,"UNC_CBO_CACHE_LOOKUP:STATE_I:ANY_FILTER",size);
            strncpy(uncore_base,"ivb_unc_cbo",BUFSIZ);
            return event_name;
            break;
 
            case 62: /* Ivy Trail */
            case 45: /* SandyBridge EP */
            strncpy(event_name,"UNC_C_TOR_OCCUPANCY:ALL",size);
            strncpy(uncore_base,"snbep_unc_cbo",size);
            return event_name;
            break;
 
            case 60:
            case 70:
            case 69: /* Haswell: note libpfm4 has no haswell unc support */
            return NULL;
            break;
 
            case 63: /*haswell EP*/
            strncpy(event_name,"UNC_C_COUNTER0_OCCUPANCY",size);
            strncpy(uncore_base,"hswep_unc_cbo",size);
            return event_name;
            break;
 
            case 61:
            case 71:
            case 86: /* Broadwell: note libpfm4 has no broadwell unc support */
            return NULL;
            break;
 
            case 79: /* Broadwell-EP */
            strncpy(event_name,"UNC_C_COUNTER0_OCCUPANCY",size);
            strncpy(uncore_base,"bdx_unc_cbo",size);
            return event_name;
            break;
 
            case 78:
            case 94: /* Skylake: note libpfm4 has no skylake unc support */
            return NULL;
            break;
 
            case 85: /* Skylake-X */
                /* note libpfm4 has no skylake-x unc support */
            return NULL;
            break;
 
            case 87: /*Knights Landing*/
            strncpy(event_name,"UNC_M_D_CLOCKTICKS",size);
            strncpy(uncore_base,"knl_unc_imc",size);
            return event_name;
            break;
            }
        }
        return NULL;
    }
 
    return NULL;
}