cpuid_mips64.c

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/* Copyright 2009, 2010 The University of Texas at Austin.           */
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#define CPU_UNKNOWN         0
#define CPU_MIPS64_GENERIC  1
#define CPU_SICORTEX        2
#define CPU_LOONGSON3R3     3
#define CPU_LOONGSON3R4     4
#define CPU_I6400           5
#define CPU_P6600           6
#define CPU_I6500           7

static char *cpuname[] = {
  "UNKNOWN",
  "MIPS64_GENERIC"
  "SICORTEX",
  "LOONGSON3R3",
  "LOONGSON3R4",
  "I6400",
  "P6600",
  "I6500"
};

int detect(void){

#ifdef linux
  FILE *infile;
  char buffer[512], *p;

  p = (char *)NULL;
  //Check model name for Loongson3
  infile = fopen("/proc/cpuinfo", "r");
  while (fgets(buffer, sizeof(buffer), infile)){
    if (!strncmp("model name", buffer, 10)){
      p = strchr(buffer, ':') + 2;
      break;
    }
  }
  fclose(infile);
  if (p != NULL){
    if (strstr(p, "Loongson-3A3000") || strstr(p, "Loongson-3B3000")){
      return CPU_LOONGSON3R3;
    } else if (strstr(p, "Loongson-3A4000") || strstr(p, "Loongson-3B4000")){
      return CPU_LOONGSON3R4;
    } else{
      return CPU_SICORTEX;
    }
  }

  return CPU_MIPS64_GENERIC;
#else
  return CPU_UNKNOWN;
#endif
}

char *get_corename(void){
  return cpuname[detect()];
}

void get_architecture(void){
  printf("MIPS64");
}

void get_subarchitecture(void){
  if(detect()==CPU_LOONGSON3R3) {
    printf("LOONGSON3R3");
  }else if(detect()==CPU_LOONGSON3R4){
    printf("LOONGSON3R4");
  }else if(detect()==CPU_I6400){
    printf("I6400");
  }else if(detect()==CPU_P6600){
    printf("P6600");
  }else if(detect()==CPU_I6500){
    printf("I6500");
  }else if(detect()==CPU_SICORTEX){
    printf("SICORTEX");
  }else{
    printf("MIPS64_GENERIC");
  } 
}

void get_subdirname(void){
  printf("mips64");
}

void get_cpuconfig(void){
  if(detect()==CPU_LOONGSON3R3) {
    printf("#define LOONGSON3R3\n");
    printf("#define L1_DATA_SIZE 65536\n");
    printf("#define L1_DATA_LINESIZE 32\n");
    printf("#define L2_SIZE 512488\n");
    printf("#define L2_LINESIZE 32\n");
    printf("#define DTB_DEFAULT_ENTRIES 64\n");
    printf("#define DTB_SIZE 4096\n");
    printf("#define L2_ASSOCIATIVE 4\n");
  }else if(detect()==CPU_LOONGSON3R4){
    printf("#define LOONGSON3R4\n");
    printf("#define L1_DATA_SIZE 65536\n");
    printf("#define L1_DATA_LINESIZE 32\n");
    printf("#define L2_SIZE 512488\n");
    printf("#define L2_LINESIZE 32\n");
    printf("#define DTB_DEFAULT_ENTRIES 64\n");
    printf("#define DTB_SIZE 4096\n");
    printf("#define L2_ASSOCIATIVE 4\n");
  }else if(detect()==CPU_I6400){
    printf("#define I6400\n");
    printf("#define L1_DATA_SIZE 65536\n");
    printf("#define L1_DATA_LINESIZE 32\n");
    printf("#define L2_SIZE 1048576\n");
    printf("#define L2_LINESIZE 32\n");
    printf("#define DTB_DEFAULT_ENTRIES 64\n");
    printf("#define DTB_SIZE 4096\n");
    printf("#define L2_ASSOCIATIVE 8\n");
  }else if(detect()==CPU_P6600){
    printf("#define P6600\n");
    printf("#define L1_DATA_SIZE 65536\n");
    printf("#define L1_DATA_LINESIZE 32\n");
    printf("#define L2_SIZE 1048576\n");
    printf("#define L2_LINESIZE 32\n");
    printf("#define DTB_DEFAULT_ENTRIES 64\n");
    printf("#define DTB_SIZE 4096\n");
    printf("#define L2_ASSOCIATIVE 8\n");
  }else if(detect()==CPU_I6500){
    printf("#define I6500\n");
    printf("#define L1_DATA_SIZE 65536\n");
    printf("#define L1_DATA_LINESIZE 32\n");
    printf("#define L2_SIZE 1048576\n");
    printf("#define L2_LINESIZE 32\n");
    printf("#define DTB_DEFAULT_ENTRIES 64\n");
    printf("#define DTB_SIZE 4096\n");
    printf("#define L2_ASSOCIATIVE 8\n");
  }else{
    printf("#define SICORTEX\n");
    printf("#define L1_DATA_SIZE 32768\n");
    printf("#define L1_DATA_LINESIZE 32\n");
    printf("#define L2_SIZE 512488\n");
    printf("#define L2_LINESIZE 32\n");
    printf("#define DTB_DEFAULT_ENTRIES 32\n");
    printf("#define DTB_SIZE 4096\n");
    printf("#define L2_ASSOCIATIVE 8\n");
  }
#ifndef NO_MSA
  if (get_feature("msa")) printf("#define HAVE_MSA\n");
#endif
}

void get_libname(void){
  if(detect()==CPU_LOONGSON3R3) {
    printf("loongson3r3\n");
  }else if(detect()==CPU_LOONGSON3R4) {
    printf("loongson3r4\n");
  }else if(detect()==CPU_I6400) {
    printf("i6400\n");
  }else if(detect()==CPU_P6600) {
    printf("p6600\n");
  }else if(detect()==CPU_I6500) {
    printf("i6500\n");
  }else {
    printf("mips64_generic\n");
  }
}

int get_feature(char *search)
{

#ifdef __linux
        FILE *infile;
        char buffer[2048], *p,*t;
        p = (char *) NULL ;

        infile = fopen("/proc/cpuinfo", "r");

        while (fgets(buffer, sizeof(buffer), infile))
        {

                if (!strncmp("Features", buffer, 8) || !strncmp("ASEs implemented", buffer, 16))
                {
                        p = strchr(buffer, ':') + 2;
                        break;
                }
        }

        fclose(infile);

        if( p == NULL ) return 0;

        t = strtok(p," ");
        while( t = strtok(NULL," "))
        {
                if (strstr(t, search))   { return(1); }
        }

#endif
        return(0);
}