165 lines
6.1 KiB
C
165 lines
6.1 KiB
C
/*****************************************************************************
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Copyright (c) 2011-2022, The OpenBLAS Project
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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 OpenBLAS project nor the names of
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its contributors may be used to endorse or promote products
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derived from this software without specific prior written
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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_GENERIC 0
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#define CPU_C910V 1
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#define CPU_x280 2
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#define CPU_RISCV64_ZVL256B 3
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#define CPU_RISCV64_ZVL128B 4
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static char *cpuname[] = {
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"RISCV64_GENERIC",
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"C910V",
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"x280",
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"CPU_RISCV64_ZVL256B",
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"CPU_RISCV64_ZVL128B"
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};
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static char *cpuname_lower[] = {
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"riscv64_generic",
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"c910v",
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"x280",
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"riscv64_zvl256b",
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"riscv64_zvl128b"
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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],isa_buffer[512],model_buffer[512];
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const char* check_c910_str = "T-HEAD C910";
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char *pmodel = NULL, *pisa = NULL;
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infile = fopen("/proc/cpuinfo", "r");
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if (!infile)
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return CPU_GENERIC;
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while (fgets(buffer, sizeof(buffer), infile)){
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if(!strncmp(buffer, "model name", 10)){
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strcpy(model_buffer, buffer);
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pmodel = strchr(model_buffer, ':');
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if (pmodel)
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pmodel++;
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}
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if(!strncmp(buffer, "isa", 3)){
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strcpy(isa_buffer, buffer);
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pisa = strchr(isa_buffer, '4');
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if (pisa)
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pisa++;
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}
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}
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fclose(infile);
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if (!pmodel || !pisa)
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return(CPU_GENERIC);
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if (strstr(pmodel, check_c910_str) && strchr(pisa, 'v'))
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return CPU_C910V;
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return CPU_GENERIC;
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#endif
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return CPU_GENERIC;
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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("RISCV64");
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}
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void get_subarchitecture(void){
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printf("%s",cpuname[detect()]);
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}
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void get_subdirname(void){
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printf("riscv64");
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}
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void get_cpuconfig(void){
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printf("#define %s\n", cpuname[detect()]);
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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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}
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void get_libname(void){
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printf("%s", cpuname_lower[detect()]);
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}
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