fix: detect hw.ncpu for FreeBSD

Author: Martinfx

src/common/cpuinfo/CpuInfo.cpp

@@ -435,9 +435,28 @@ CpuInfo CpuInfo::build()
     std::vector<CpuModel> cpus_model(1, midr_to_model(midr));
     CpuInfo               info(isa, cpus_model);
     return info;
-#elif defined(__aarch64__) && (defined(__OpenBSD__) || defined(__FreeBSD__) || \
-                               defined(__APPLE__)) /* #elif(BARE_METAL) && defined(__aarch64__) */
-    int                   ncpus = get_hw_capability("hw.perflevel0.logicalcpu");
+
+#elif defined(__aarch64__) && (defined(__OpenBSD__) || defined(__FreeBSD__))
+    /* #elif(BARE_METAL) && defined(__aarch64__) */
+    int ncpus = get_hw_capability("hw.ncpu");
+    CpuIsaInfo            isainfo;
+    std::vector<CpuModel> cpus_model(ncpus);
+    isainfo.neon       = get_hw_capability("hw.optional.neon");
+    isainfo.fp16       = get_hw_capability("hw.optional.neon_fp16");
+    isainfo.dot        = get_hw_capability("hw.optional.arm.FEAT_DotProd");
+    isainfo.bf16       = get_hw_capability("hw.optional.arm.FEAT_BF16");
+    isainfo.i8mm       = get_hw_capability("hw.optional.arm.FEAT_I8MM");
+    isainfo.sme        = get_hw_capability("hw.optional.arm.FEAT_SME");
+    isainfo.sme_f32f32 = get_hw_capability("hw.optional.arm.SME_F32F32");
+    isainfo.sme_b16f32 = get_hw_capability("hw.optional.arm.SME_B16F32");
+    isainfo.sme_f16f32 = get_hw_capability("hw.optional.arm.SME_F16F32");
+    isainfo.sme_i8i32  = get_hw_capability("hw.optional.arm.SME_I8I32");
+    isainfo.sme2       = get_hw_capability("hw.optional.arm.FEAT_SME2");
+    CpuInfo info(isainfo, cpus_model);
+    return info;
+
+#elif defined(__aarch64__) && defined(__APPLE__)
+    int ncpus = get_hw_capability("hw.perflevel0.logicalcpu");
     CpuIsaInfo            isainfo;
     std::vector<CpuModel> cpus_model(ncpus);
     isainfo.neon       = get_hw_capability("hw.optional.neon");