Update cpuinfo to support AVX10.2 ISA detection
diff --git a/include/cpuinfo.h b/include/cpuinfo.h
index 6eb4b8c..ea3c1d0 100644
--- a/include/cpuinfo.h
+++ b/include/cpuinfo.h
@@ -821,6 +821,7 @@
bool avx512_4vnniw;
bool avx512_4fmaps;
bool avx10_1;
+ bool avx10_2;
bool amx_bf16;
bool amx_tile;
bool amx_int8;
@@ -1444,6 +1445,14 @@
#endif
}
+static inline bool cpuinfo_has_x86_avx10_2(void) {
+#if CPUINFO_ARCH_X86 || CPUINFO_ARCH_X86_64
+ return cpuinfo_isa.avx10_2;
+#else
+ return false;
+#endif
+}
+
static inline bool cpuinfo_has_x86_hle(void) {
#if CPUINFO_ARCH_X86 || CPUINFO_ARCH_X86_64
return cpuinfo_isa.hle;
diff --git a/src/x86/isa.c b/src/x86/isa.c
index 47a6afa..c8b1c99 100644
--- a/src/x86/isa.c
+++ b/src/x86/isa.c
@@ -46,6 +46,8 @@
(max_base_index >= 7) ? cpuidex(7, 0) : (struct cpuid_regs){0, 0, 0, 0};
const struct cpuid_regs structured_feature_info1 =
(max_base_index >= 7) ? cpuidex(7, 1) : (struct cpuid_regs){0, 0, 0, 0};
+ const struct cpuid_regs structured_feature_info2 =
+ (max_base_index >= 7) ? cpuidex(0x24, 0) : (struct cpuid_regs){0, 0, 0, 0};
const uint32_t processor_capacity_info_index = UINT32_C(0x80000008);
const struct cpuid_regs processor_capacity_info = (max_extended_index >= processor_capacity_info_index)
@@ -435,6 +437,11 @@
isa.avx10_1 = avx512_regs && !!(structured_feature_info1.edx & UINT32_C(0x00080000));
/*
+ * AVX 10.2 instructions:
+ */
+ isa.avx10_2 = !!((structured_feature_info2.ebx & UINT32_C(0x0000007F)) >= 2) && isa.avx10_1;
+
+ /*
* AVX512PF instructions:
* - Intel: ebx[bit 26] in structured feature info (ecx = 0).
*/
diff --git a/tools/cpuid-dump.c b/tools/cpuid-dump.c
index 87c403d..1a65510 100644
--- a/tools/cpuid-dump.c
+++ b/tools/cpuid-dump.c
@@ -123,6 +123,15 @@
print_cpuidex(regs, eax, ecx);
}
break;
+ case UINT32_C(0x00000024):
+ for (uint32_t ecx = 0; ecx <= max_socid_index; ecx++) {
+ const struct cpuid_regs regs = cpuidex(eax, ecx);
+ if (ecx == 0) {
+ max_socid_index = regs.eax;
+ }
+ print_cpuidex(regs, eax, ecx);
+ }
+ break;
default:
print_cpuid(cpuidex(eax, 0), eax);
break;
diff --git a/tools/isa-info.c b/tools/isa-info.c
index 96bcdd7..21f94a5 100644
--- a/tools/isa-info.c
+++ b/tools/isa-info.c
@@ -71,6 +71,7 @@
printf("\tAVX512_4VNNIW: %s\n", cpuinfo_has_x86_avx512_4vnniw() ? "yes" : "no");
printf("\tAVX512_4FMAPS: %s\n", cpuinfo_has_x86_avx512_4fmaps() ? "yes" : "no");
printf("\tAVX10_1: %s\n", cpuinfo_has_x86_avx10_1() ? "yes" : "no");
+ printf("\tAVX10_2: %s\n", cpuinfo_has_x86_avx10_2() ? "yes" : "no");
printf("\tAMX_BF16: %s\n", cpuinfo_has_x86_amx_bf16() ? "yes" : "no");
printf("\tAMX_TILE: %s\n", cpuinfo_has_x86_amx_tile() ? "yes" : "no");
printf("\tAMX_INT8: %s\n", cpuinfo_has_x86_amx_int8() ? "yes" : "no");
