mirror of
https://github.com/Zenithsiz/ftmemsim-valgrind.git
synced 2026-02-03 18:13:01 +00:00
0e1fa562e9
This set of tests covers the whole MSA instruction set: none/tests/mips32/msa_arithmetic none/tests/mips32/msa_comparison none/tests/mips32/msa_data_transfer none/tests/mips32/msa_fpu none/tests/mips32/msa_logical_and_shift none/tests/mips32/msa_shuffle none/tests/mips64/msa_arithmetic (symlink to mips32) none/tests/mips64/msa_comparison (symlink to mips32) none/tests/mips64/msa_data_transfer none/tests/mips64/msa_fpu (symlink to mips32) none/tests/mips64/msa_logical_and_shift (symlink to mips32) none/tests/mips64/msa_shuffle (symlink to mips32) Contributed by: Tamara Vlahovic, Aleksandar Rikalo and Aleksandra Karadzic. Related BZ issue - #382563.
133 lines
3.4 KiB
C
133 lines
3.4 KiB
C
// This file determines MIPS features a processor supports.
|
|
//
|
|
// We return:
|
|
// - 0 if the machine matches the asked-for feature.
|
|
// - 1 if the machine does not.
|
|
// - 2 if the asked-for feature isn't recognised (this will be the case for
|
|
// any feature if run on a non-MIPS machine).
|
|
// - 3 if there was a usage error (it also prints an error message).
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <assert.h>
|
|
|
|
#define FEATURE_PRESENT 0
|
|
#define FEATURE_NOT_PRESENT 1
|
|
#define UNRECOGNISED_FEATURE 2
|
|
#define USAGE_ERROR 3
|
|
|
|
#if defined(VGA_mips32) || defined(VGA_mips64)
|
|
static int mipsCPUInfo(const char *search_string) {
|
|
const char *file_name = "/proc/cpuinfo";
|
|
/* Simple detection of MIPS DSP ASE at runtime for Linux.
|
|
* It is based on /proc/cpuinfo, which reveals hardware configuration
|
|
* to user-space applications. */
|
|
|
|
char cpuinfo_line[256];
|
|
|
|
FILE *f = NULL;
|
|
if ((f = fopen (file_name, "r")) == NULL)
|
|
return 0;
|
|
|
|
while (fgets (cpuinfo_line, sizeof (cpuinfo_line), f) != NULL)
|
|
{
|
|
if (strstr (cpuinfo_line, search_string) != NULL)
|
|
{
|
|
fclose (f);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
fclose (f);
|
|
|
|
/* Did not find string in the /proc/cpuinfo file. */
|
|
return 0;
|
|
}
|
|
|
|
static int go(char *feature)
|
|
{
|
|
int cpuinfo;
|
|
if (strcmp(feature, "fpu") == 0) {
|
|
#if defined(__mips_hard_float)
|
|
/* This is not a runtime detection.
|
|
If mips_features is built as hard-float, the assumption is that
|
|
the target MIPS platform has a floating-point unit. */
|
|
return FEATURE_PRESENT;
|
|
#else
|
|
return FEATURE_NOT_PRESENT;
|
|
#endif
|
|
} else if (strcmp(feature, "mips-msa") == 0) {
|
|
const char *msa = "msa";
|
|
cpuinfo = mipsCPUInfo(msa);
|
|
if (cpuinfo == 1) {
|
|
return FEATURE_PRESENT;
|
|
} else{
|
|
return FEATURE_NOT_PRESENT;
|
|
}
|
|
} else if (strcmp(feature, "mips32-dsp") == 0) {
|
|
const char *dsp = "dsp";
|
|
cpuinfo = mipsCPUInfo(dsp);
|
|
if (cpuinfo == 1) {
|
|
return FEATURE_PRESENT;
|
|
} else{
|
|
return FEATURE_NOT_PRESENT;
|
|
}
|
|
} else if (strcmp(feature, "mips32-dspr2") == 0) {
|
|
const char *dsp2 = "dsp2";
|
|
cpuinfo = mipsCPUInfo(dsp2);
|
|
if (cpuinfo == 1) {
|
|
return FEATURE_PRESENT;
|
|
} else{
|
|
return FEATURE_NOT_PRESENT;
|
|
}
|
|
} else if (strcmp(feature, "cavium-octeon") == 0) {
|
|
const char *cavium = "Cavium Octeon";
|
|
cpuinfo = mipsCPUInfo(cavium);
|
|
if (cpuinfo == 1) {
|
|
return FEATURE_PRESENT;
|
|
} else{
|
|
return FEATURE_NOT_PRESENT;
|
|
}
|
|
} else if (strcmp(feature, "cavium-octeon2") == 0) {
|
|
const char *cavium2 = "Cavium Octeon II";
|
|
cpuinfo = mipsCPUInfo(cavium2);
|
|
if (cpuinfo == 1) {
|
|
return FEATURE_PRESENT;
|
|
} else{
|
|
return FEATURE_NOT_PRESENT;
|
|
}
|
|
} else if (strcmp(feature, "mips-be") == 0) {
|
|
#if defined (_MIPSEB)
|
|
return FEATURE_PRESENT;
|
|
#else
|
|
return FEATURE_NOT_PRESENT;
|
|
#endif
|
|
} else {
|
|
return UNRECOGNISED_FEATURE;
|
|
}
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
static int go(char *feature)
|
|
{
|
|
/* Feature is not recognised. (non-MIPS machine!) */
|
|
return UNRECOGNISED_FEATURE;
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
//---------------------------------------------------------------------------
|
|
// main
|
|
//---------------------------------------------------------------------------
|
|
int main(int argc, char **argv)
|
|
{
|
|
if (argc != 2) {
|
|
fprintf( stderr, "usage: mips_features <feature>\n" );
|
|
exit(USAGE_ERROR);
|
|
}
|
|
return go(argv[1]);
|
|
}
|