native_avail.c

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/* This file utility reports hardware info and native event availability */
#include "papi_test.h"

#define EVT_LINE 80

typedef struct command_flags
{
    int help;
    int details;
    int named;
    char *name;
    int darr;
    int dear;
    int iarr;
    int iear;
    int opcm;
    int umask;
    int groups;
} command_flags_t;

static void
print_help( char **argv)
{
    printf( "This is the PAPI native avail program.\n" );
    printf( "It provides availability and detail information for PAPI native events.\n" );
    printf( "Usage: %s [options]\n", argv[0] );
    printf( "\nOptions:\n" );
    printf( "   --help, -h   print this help message\n" );
    printf( "   -d           display detailed information about native events\n" );
    printf( "   -e EVENTNAME display detail information about named native event\n" );
    printf( "   --nomasks    suppress display of Unit Mask information\n" );
    printf( "\nProcessor-specific options\n");
    printf( "  --darr        display events supporting Data Address Range Restriction\n" );
    printf( "  --dear        display Data Event Address Register events only\n" );
    printf( "  --iarr        display events supporting Instruction Address Range Restriction\n" );
    printf( "  --iear        display Instruction Event Address Register events only\n" );
        printf( "  --opcm        display events supporting OpCode Matching\n" );
    printf( "  --nogroups    suppress display of Event grouping information\n" );
    printf( "\n" );
}

static void
parse_args( int argc, char **argv, command_flags_t * f )
{

    int i;

    /* Look for all currently defined commands */
    memset( f, 0, sizeof ( command_flags_t ) );
    f->umask = 1;
    f->groups = 1;

    for ( i = 1; i < argc; i++ ) {
        if ( !strcmp( argv[i], "--darr" ) )
            f->darr = 1;
        else if ( !strcmp( argv[i], "--dear" ) )
            f->dear = 1;
        else if ( !strcmp( argv[i], "--iarr" ) )
            f->iarr = 1;
        else if ( !strcmp( argv[i], "--iear" ) )
            f->iear = 1;
        else if ( !strcmp( argv[i], "--opcm" ) )
            f->opcm = 1;
        else if ( !strcmp( argv[i], "--noumasks" ) )
            f->umask = 0;
        else if ( !strcmp( argv[i], "--nogroups" ) )
            f->groups = 0;
        else if ( !strcmp( argv[i], "-d" ) )
            f->details = 1;
        else if ( !strcmp( argv[i], "-e" ) ) {
            f->named = 1;
            f->name = argv[i + 1];
            if ( ( f->name == NULL ) || ( strlen( f->name ) == 0 ) || ( f->name[0] == '-' ) )
                f->help = 1;
            i++;
        } else if ( strstr( argv[i], "-h" ) )
            f->help = 1;
        else {
            printf( "%s is not supported\n", argv[i] );
            exit(1);
        }
    }

    /* if help requested, print and bail */
    if ( f->help ) {
        print_help( argv);
        exit( 1 );
    }
}

static void
space_pad( char *str, int spaces )
{
    while ( spaces-- > 0 )
        strcat( str, " " );
}

static void
print_event( PAPI_event_info_t * info, int offset )
{
    unsigned int i, j = 0;
    char str[EVT_LINE + EVT_LINE];

    /* indent by offset */
    if ( offset ) {
       printf( "|     %-73s|\n", info->symbol );
    }
    else {
       printf( "| %-77s|\n", info->symbol );
    }

    while ( j <= strlen( info->long_descr ) ) {
       i = EVT_LINE - 12 - 2;
       if ( i > 0 ) {
          str[0] = 0;
          strcat(str,"| " );
          space_pad( str, 11 );
          strncat( str, &info->long_descr[j], i );
          j += i;
          i = ( unsigned int ) strlen( str );
          space_pad( str, EVT_LINE - ( int ) i - 1 );
          strcat( str, "|" );
       }
       printf( "%s\n", str );
    }
}

static int
parse_unit_masks( PAPI_event_info_t * info )
{
  char *pmask,*ptr;

  /* handle libpfm4-style events which have a pmu::event type event name */
  if ((ptr=strstr(info->symbol, "::"))) {
    ptr+=2;
  }
  else {
    ptr=info->symbol;
  }

    if ( ( pmask = strchr( ptr, ':' ) ) == NULL ) {
        return ( 0 );
    }
    memmove( info->symbol, pmask, ( strlen( pmask ) + 1 ) * sizeof ( char ) );
    pmask = strchr( info->long_descr, ':' );
    if ( pmask == NULL )
        info->long_descr[0] = 0;
    else
        memmove( info->long_descr, pmask + sizeof ( char ),
                 ( strlen( pmask ) + 1 ) * sizeof ( char ) );
    return ( 1 );
}

int
main( int argc, char **argv )
{
    int i, j = 0, k;
    int retval;
    PAPI_event_info_t info;
    const PAPI_hw_info_t *hwinfo = NULL;
    command_flags_t flags;
    int enum_modifier;
    int numcmp, cid;

    /* Set TESTS_QUIET variable */
    tests_quiet( argc, argv );

    /* Initialize before parsing the input arguments */
    retval = PAPI_library_init( PAPI_VER_CURRENT );
    if ( retval != PAPI_VER_CURRENT ) {
        test_fail( __FILE__, __LINE__, "PAPI_library_init", retval );
    }

    /* Parse the command-line arguments */
    parse_args( argc, argv, &flags );

    /* Set enum modifier mask */
    if ( flags.dear )
        enum_modifier = PAPI_NTV_ENUM_DEAR;
    else if ( flags.darr )
        enum_modifier = PAPI_NTV_ENUM_DARR;
    else if ( flags.iear )
        enum_modifier = PAPI_NTV_ENUM_IEAR;
    else if ( flags.iarr )
        enum_modifier = PAPI_NTV_ENUM_IARR;
    else if ( flags.opcm )
        enum_modifier = PAPI_NTV_ENUM_OPCM;
    else
        enum_modifier = PAPI_ENUM_EVENTS;


    if ( !TESTS_QUIET ) {
       retval = PAPI_set_debug( PAPI_VERB_ECONT );
       if ( retval != PAPI_OK ) {
          test_fail( __FILE__, __LINE__, "PAPI_set_debug", retval );
       }
    }

    retval = papi_print_header( "Available native events and hardware information.\n", &hwinfo );
    if ( retval != PAPI_OK ) {
        test_fail( __FILE__, __LINE__, "PAPI_get_hardware_info", 2 );
    }


    /* Do this code if an event name was specified on the commandline */
    if ( flags.named ) {
       if ( PAPI_event_name_to_code( flags.name, &i ) == PAPI_OK ) {
          if ( PAPI_get_event_info( i, &info ) == PAPI_OK ) {
         printf( "%-30s%s\n",
             "Event name:", info.symbol);
         printf( "%-29s|%s|\n", "Description:", info.long_descr );

             /* if unit masks exist but none specified, process all */
             if ( !strchr( flags.name, ':' ) ) {
            if ( PAPI_enum_event( &i, PAPI_NTV_ENUM_UMASKS ) == PAPI_OK ) {
               printf( "\nUnit Masks:\n" );
               do {
                  retval = PAPI_get_event_info( i, &info );
                  if ( retval == PAPI_OK ) {
                 if ( parse_unit_masks( &info ) ) {
                    printf( "%-29s|%s|%s|\n", " Mask Info:",
                        info.symbol, info.long_descr );
                 }
                  }
               } while ( PAPI_enum_event( &i, PAPI_NTV_ENUM_UMASKS ) == PAPI_OK );
            }
             }
          }
       } else {
         printf("Sorry, an event by the name '%s' could not be found.\n",
            flags.name);
         printf("Is it typed correctly?\n\n");
         exit( 1 );
       }
    }
        else {

       /* Print *ALL* available events */


       numcmp = PAPI_num_components(  );

       j = 0;

       for ( cid = 0; cid < numcmp; cid++ ) {

           const PAPI_component_info_t *component;
           component=PAPI_get_component_info(cid);

           /* Skip disabled components */
           if (component->disabled) continue;

           printf( "===============================================================================\n" );
           printf( " Native Events in Component: %s\n",component->name);
           printf( "===============================================================================\n" );
         
           /* Always ASK FOR the first event */
           /* Don't just assume it'll be the first numeric value */
           i = 0 | PAPI_NATIVE_MASK;

           retval=PAPI_enum_cmp_event( &i, PAPI_ENUM_FIRST, cid );

           do {
          memset( &info, 0, sizeof ( info ) );
          retval = PAPI_get_event_info( i, &info );

          /* This event may not exist */
          if ( retval != PAPI_OK )
             continue;

          /* count only events that as supported by host cpu */
          j++;

          print_event( &info, 0 );

          if (flags.details) {
            if (info.units[0]) printf( "|     Units: %-67s|\n", 
                           info.units );
          }
            


/*      modifier = PAPI_NTV_ENUM_GROUPS returns event codes with a
            groups id for each group in which this
            native event lives, in bits 16 - 23 of event code
            terminating with PAPI_ENOEVNT at the end of the list.
*/

          /* This is an IBM Power issue */
          if ( flags.groups ) {
             k = i;
             if ( PAPI_enum_cmp_event( &k, PAPI_NTV_ENUM_GROUPS, cid ) == PAPI_OK ) {
            printf( "Groups: " );
            do {
              printf( "%4d", ( ( k & PAPI_NTV_GROUP_AND_MASK ) >>
                         PAPI_NTV_GROUP_SHIFT ) - 1 );
            } while ( PAPI_enum_cmp_event( &k, PAPI_NTV_ENUM_GROUPS, cid ) ==PAPI_OK );
            printf( "\n" );
             }
          }

          /* Print umasks */
          /* components that don't have them can just ignore */

              if ( flags.umask ) { 
             k = i;
             if ( PAPI_enum_cmp_event( &k, PAPI_NTV_ENUM_UMASKS, cid ) == PAPI_OK ) {
                do {
               retval = PAPI_get_event_info( k, &info );
               if ( retval == PAPI_OK ) {
                  if ( parse_unit_masks( &info ) )
                     print_event( &info, 2 );
               }
                } while ( PAPI_enum_cmp_event( &k, PAPI_NTV_ENUM_UMASKS, cid ) == PAPI_OK );
             }

          }
          printf( "--------------------------------------------------------------------------------\n" );

           } while (PAPI_enum_cmp_event( &i, enum_modifier, cid ) == PAPI_OK );
       }
            
    
       printf("\n");
       printf( "Total events reported: %d\n", j );
    }

    test_pass( __FILE__, NULL, 0 );
    exit( 0 );
}