diff options
Diffstat (limited to 'sysdeps/x86/cpu-features.c')
| -rw-r--r-- | sysdeps/x86/cpu-features.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/sysdeps/x86/cpu-features.c b/sysdeps/x86/cpu-features.c index badf088..0bf923d 100644 --- a/sysdeps/x86/cpu-features.c +++ b/sysdeps/x86/cpu-features.c @@ -115,11 +115,18 @@ update_active (struct cpu_features *cpu_features) CPU_FEATURE_SET_ACTIVE (cpu_features, SHSTK); #endif + enum + { + os_xmm = 1, + os_ymm = 2, + os_zmm = 4 + } os_vector_size = os_xmm; /* Can we call xgetbv? */ if (CPU_FEATURES_CPU_P (cpu_features, OSXSAVE)) { unsigned int xcrlow; unsigned int xcrhigh; + CPU_FEATURE_SET_ACTIVE (cpu_features, AVX10); asm ("xgetbv" : "=a" (xcrlow), "=d" (xcrhigh) : "c" (0)); /* Is YMM and XMM state usable? */ if ((xcrlow & (bit_YMM_state | bit_XMM_state)) @@ -128,6 +135,7 @@ update_active (struct cpu_features *cpu_features) /* Determine if AVX is usable. */ if (CPU_FEATURES_CPU_P (cpu_features, AVX)) { + os_vector_size |= os_ymm; CPU_FEATURE_SET (cpu_features, AVX); /* The following features depend on AVX being usable. */ /* Determine if AVX2 is usable. */ @@ -166,6 +174,7 @@ update_active (struct cpu_features *cpu_features) | bit_ZMM16_31_state)) == (bit_Opmask_state | bit_ZMM0_15_state | bit_ZMM16_31_state)) { + os_vector_size |= os_zmm; /* Determine if AVX512F is usable. */ if (CPU_FEATURES_CPU_P (cpu_features, AVX512F)) { @@ -210,6 +219,22 @@ update_active (struct cpu_features *cpu_features) } } + if (CPU_FEATURES_CPU_P (cpu_features, AVX10) + && cpu_features->basic.max_cpuid >= 0x24) + { + __cpuid_count ( + 0x24, 0, cpu_features->features[CPUID_INDEX_24_ECX_0].cpuid.eax, + cpu_features->features[CPUID_INDEX_24_ECX_0].cpuid.ebx, + cpu_features->features[CPUID_INDEX_24_ECX_0].cpuid.ecx, + cpu_features->features[CPUID_INDEX_24_ECX_0].cpuid.edx); + if (os_vector_size & os_xmm) + CPU_FEATURE_SET_ACTIVE (cpu_features, AVX10_XMM); + if (os_vector_size & os_ymm) + CPU_FEATURE_SET_ACTIVE (cpu_features, AVX10_YMM); + if (os_vector_size & os_zmm) + CPU_FEATURE_SET_ACTIVE (cpu_features, AVX10_ZMM); + } + /* Are XTILECFG and XTILEDATA states usable? */ if ((xcrlow & (bit_XTILECFG_state | bit_XTILEDATA_state)) == (bit_XTILECFG_state | bit_XTILEDATA_state)) |