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/*****************************************************************************
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Copyright (c) 2011, Lab of Parallel Software and Computational Science,ICSAS
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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   1. Redistributions of source code must retain the above copyright
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      notice, this list of conditions and the following disclaimer.
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   2. Redistributions in binary form must reproduce the above copyright
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      notice, this list of conditions and the following disclaimer in
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      the documentation and/or other materials provided with the
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      distribution.
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   3. Neither the name of the ISCAS nor the names of its contributors may 
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      be used to endorse or promote products derived from this software 
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      without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 
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USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**********************************************************************************/
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/*********************************************************************/
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/* Copyright 2009, 2010 The University of Texas at Austin.           */
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/* All rights reserved.                                              */
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/*                                                                   */
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/* Redistribution and use in source and binary forms, with or        */
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/* without modification, are permitted provided that the following   */
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/* conditions are met:                                               */
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/*                                                                   */
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/*   1. Redistributions of source code must retain the above         */
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/*      copyright notice, this list of conditions and the following  */
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/*      disclaimer.                                                  */
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/*                                                                   */
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/*   2. Redistributions in binary form must reproduce the above      */
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/*      copyright notice, this list of conditions and the following  */
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/*      disclaimer in the documentation and/or other materials       */
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/*      provided with the distribution.                              */
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/*                                                                   */
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/*    THIS  SOFTWARE IS PROVIDED  BY THE  UNIVERSITY OF  TEXAS AT    */
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/*    AUSTIN  ``AS IS''  AND ANY  EXPRESS OR  IMPLIED WARRANTIES,    */
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/*    INCLUDING, BUT  NOT LIMITED  TO, THE IMPLIED  WARRANTIES OF    */
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/*    MERCHANTABILITY  AND FITNESS FOR  A PARTICULAR  PURPOSE ARE    */
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/*    DISCLAIMED.  IN  NO EVENT SHALL THE UNIVERSITY  OF TEXAS AT    */
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/*    AUSTIN OR CONTRIBUTORS BE  LIABLE FOR ANY DIRECT, INDIRECT,    */
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/*    INCIDENTAL,  SPECIAL, EXEMPLARY,  OR  CONSEQUENTIAL DAMAGES    */
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/*    (INCLUDING, BUT  NOT LIMITED TO,  PROCUREMENT OF SUBSTITUTE    */
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/*    GOODS  OR  SERVICES; LOSS  OF  USE,  DATA,  OR PROFITS;  OR    */
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/*    BUSINESS INTERRUPTION) HOWEVER CAUSED  AND ON ANY THEORY OF    */
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/*    LIABILITY, WHETHER  IN CONTRACT, STRICT  LIABILITY, OR TORT    */
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/*    (INCLUDING NEGLIGENCE OR OTHERWISE)  ARISING IN ANY WAY OUT    */
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/*    OF  THE  USE OF  THIS  SOFTWARE,  EVEN  IF ADVISED  OF  THE    */
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/*    POSSIBILITY OF SUCH DAMAGE.                                    */
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/*                                                                   */
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/* The views and conclusions contained in the software and           */
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/* documentation are those of the authors and should not be          */
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/* interpreted as representing official policies, either expressed   */
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/* or implied, of The University of Texas at Austin.                 */
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/*********************************************************************/
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#define CPU_UNKNOWN     0
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#define CPU_SICORTEX    1
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#define CPU_LOONGSON3A  2
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#define CPU_LOONGSON3B  3
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static char *cpuname[] = {
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  "UNKOWN",
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  "SICORTEX",
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  "LOONGSON3A",
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  "LOONGSON3B"
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};
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int detect(void){
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#ifdef linux
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  FILE *infile;
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  char buffer[512], *p;
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  p = (char *)NULL;
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  infile = fopen("/proc/cpuinfo", "r");
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  while (fgets(buffer, sizeof(buffer), infile)){
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    if (!strncmp("cpu", buffer, 3)){
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	p = strchr(buffer, ':') + 2;
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#if 0
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	fprintf(stderr, "%s\n", p);
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#endif
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	break;
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      }
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  }
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  fclose(infile);
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  if (strstr(p, "Loongson-3A")){
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    return CPU_LOONGSON3A;
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  }else if(strstr(p, "Loongson-3B")){
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    return CPU_LOONGSON3B;
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  }else if (strstr(p, "Loongson-3")){
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    infile = fopen("/proc/cpuinfo", "r");
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    while (fgets(buffer, sizeof(buffer), infile)){
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      if (!strncmp("system type", buffer, 11)){
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	p = strchr(buffer, ':') + 2;
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	break;
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      }
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    }
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    fclose(infile);
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    if (strstr(p, "loongson3a"))
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      return CPU_LOONGSON3A;
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  }else{
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    return CPU_SICORTEX;
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  }
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#endif
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    return CPU_UNKNOWN;
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}
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char *get_corename(void){
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  return cpuname[detect()];
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}
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void get_architecture(void){
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  printf("MIPS64");
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}
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void get_subarchitecture(void){
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  if(detect()==CPU_LOONGSON3A) {
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    printf("LOONGSON3A");
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  }else if(detect()==CPU_LOONGSON3B){
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    printf("LOONGSON3B");
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  }else{
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    printf("SICORTEX");
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  }
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}
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void get_subdirname(void){
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  printf("mips64");
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}
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void get_cpuconfig(void){
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  if(detect()==CPU_LOONGSON3A) {
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    printf("#define LOONGSON3A\n");
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    printf("#define L1_DATA_SIZE 65536\n");
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    printf("#define L1_DATA_LINESIZE 32\n");
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    printf("#define L2_SIZE 512488\n");
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    printf("#define L2_LINESIZE 32\n");
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    printf("#define DTB_DEFAULT_ENTRIES 64\n");
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    printf("#define DTB_SIZE 4096\n");
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    printf("#define L2_ASSOCIATIVE 4\n");
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  }else if(detect()==CPU_LOONGSON3B){
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    printf("#define LOONGSON3B\n");
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    printf("#define L1_DATA_SIZE 65536\n");
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    printf("#define L1_DATA_LINESIZE 32\n");
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    printf("#define L2_SIZE 512488\n");
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    printf("#define L2_LINESIZE 32\n");
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    printf("#define DTB_DEFAULT_ENTRIES 64\n");
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    printf("#define DTB_SIZE 4096\n");
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    printf("#define L2_ASSOCIATIVE 4\n");
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  }else{
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    printf("#define SICORTEX\n");
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    printf("#define L1_DATA_SIZE 32768\n");
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    printf("#define L1_DATA_LINESIZE 32\n");
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    printf("#define L2_SIZE 512488\n");
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    printf("#define L2_LINESIZE 32\n");
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    printf("#define DTB_DEFAULT_ENTRIES 32\n");
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    printf("#define DTB_SIZE 4096\n");
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    printf("#define L2_ASSOCIATIVE 8\n");
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  }
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}
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void get_libname(void){
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  if(detect()==CPU_LOONGSON3A) {
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    printf("loongson3a\n");
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  }else if(detect()==CPU_LOONGSON3B) {
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    printf("loongson3b\n");
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  }else{
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#ifdef __mips64
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  printf("mips64\n");
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#else
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  printf("mips32\n");
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#endif
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  }
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}