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Treat newer Neoverse as N1 if SVE unavailable (may be disabled in container/cloud env)

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Martin Kroeker 2023-07-19 14:48:42 +02:00 committed by GitHub
parent 9e81a3a0a2
commit ca7199f249
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 11 additions and 2 deletions
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13
driver/others/dynamic_arm64.c
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@ -147,6 +147,9 @@ extern void openblas_warning(int verbose, const char * msg);
#ifndef HWCAP_CPUID
#define HWCAP_CPUID (1 << 11)
#endif
#ifndef HWCAP_SVE
#define HWCAP_SVE (1 << 22)
#endif
#define get_cpu_ftr(id, var) ({ \
__asm__ __volatile__ ("mrs %0, "#id : "=r" (var)); \
@ -281,9 +284,15 @@ static gotoblas_t *get_coretype(void) {
return &gotoblas_NEOVERSEN1;
#ifndef NO_SVE
case 0xd49:
return &gotoblas_NEOVERSEN2;
if (!(getauxval(AT_HWCAP) & HWCAP_SVE))
return &gotoblas_NEOVERSEN1;
else
return &gotoblas_NEOVERSEN2;
case 0xd40:
return &gotoblas_NEOVERSEV1;
if (!(getauxval(AT_HWCAP) & HWCAP_SVE))
return &gotoblas_NEOVERSEN1;
else
return &gotoblas_NEOVERSEV1;
#endif
case 0xd05: // Cortex A55
return &gotoblas_CORTEXA55;