Common: Add helper for getting CPU info

common/CMakeLists.txt

@@ -174,9 +174,6 @@ else()
 		target_compile_definitions(common PRIVATE "HAS_LIBBACKTRACE=1")
 		target_link_libraries(common PRIVATE libbacktrace::libbacktrace)
 	endif()
-	if(${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD")
-		target_link_libraries(common PRIVATE cpuinfo)
-	endif()
 endif()
 
 set_source_files_properties(PrecompiledHeader.cpp PROPERTIES HEADER_FILE_ONLY TRUE)
@@ -206,6 +203,7 @@ target_link_libraries(common PRIVATE
 	JPEG::JPEG
 	PNG::PNG
 	WebP::libwebp
+	cpuinfo
 )
 
 target_link_libraries(common PUBLIC

common/Darwin/DarwinMisc.cpp

@@ -271,7 +271,7 @@ std::vector<DarwinMisc::CPUClass> DarwinMisc::GetCPUClasses()
 	}
 	else if (std::optional<u32> physcpu = sysctlbyname_T<u32>("hw.physicalcpu"))
 	{
-		out.push_back({"Default", *physcpu, sysctlbyname_T<u32>("hw.logicalcpu").value_or(0)});
+		out.push_back({"Default", *physcpu, sysctlbyname_T<u32>("hw.logicalcpu").value_or(*physcpu)});
 	}
 	else
 	{
@@ -281,6 +281,35 @@ std::vector<DarwinMisc::CPUClass> DarwinMisc::GetCPUClasses()
 	return out;
 }
 
+static CPUInfo CalcCPUInfo()
+{
+	CPUInfo out;
+	char name[256];
+	size_t name_size = sizeof(name);
+	if (0 != sysctlbyname("machdep.cpu.brand_string", name, &name_size, nullptr, 0))
+		strcpy(name, "Unknown");
+	out.name = name;
+	if (sysctlbyname_T<u32>("sysctl.proc_translated").value_or(0))
+		out.name += " (Rosetta)";
+	std::vector<DarwinMisc::CPUClass> classes = DarwinMisc::GetCPUClasses();
+	out.num_clusters = static_cast<u32>(classes.size());
+	out.num_big_cores = classes.empty() ? 0 : classes[0].num_physical;
+	out.num_threads   = classes.empty() ? 0 : classes[0].num_logical;
+	out.num_small_cores = 0;
+	for (std::size_t i = 1; i < classes.size(); i++)
+	{
+		out.num_small_cores += classes[i].num_physical;
+		out.num_threads += classes[i].num_logical;
+	}
+	return out;
+}
+
+const CPUInfo& GetCPUInfo()
+{
+	static const CPUInfo info = CalcCPUInfo();
+	return info;
+}
+
 size_t HostSys::GetRuntimePageSize()
 {
 	return sysctlbyname_T<u32>("hw.pagesize").value_or(0);

common/HostSys.cpp

@@ -5,6 +5,10 @@
 #include "Console.h"
 #include "VectorIntrin.h"
 
+#ifndef __APPLE__
+#include "cpuinfo.h"
+#endif
+
 static u32 PAUSE_TIME = 0;
 
 static void MultiPause()
@@ -135,3 +139,43 @@ void AbortWithMessage(const char* msg)
 #endif
 	abort();
 }
+
+#ifndef __APPLE__
+// MacOS version is in DarwinMisc
+static CPUInfo CalcCPUInfo()
+{
+	CPUInfo out;
+	out.name = cpuinfo_get_package(0)->name;
+	out.num_threads = cpuinfo_get_processors_count();
+	out.num_clusters = cpuinfo_get_clusters_count();
+	out.num_big_cores = 0;
+	out.num_small_cores = 0;
+	const cpuinfo_cluster* clusters = cpuinfo_get_clusters();
+	uint64_t big_freq = 0;
+	for (uint32_t i = 0; i < out.num_clusters; i++)
+	{
+		const cpuinfo_cluster& cluster = clusters[i];
+		if (cluster.frequency > big_freq)
+		{
+			out.num_small_cores += out.num_big_cores;
+			out.num_big_cores = cluster.core_count;
+			big_freq = cluster.frequency;
+		}
+		else if (cluster.frequency == big_freq)
+		{
+			out.num_big_cores += cluster.core_count;
+		}
+		else
+		{
+			out.num_small_cores += cluster.core_count;
+		}
+	}
+	return out;
+}
+
+const CPUInfo& GetCPUInfo()
+{
+	static const CPUInfo info = CalcCPUInfo();
+	return info;
+}
+#endif

common/HostSys.h

@@ -192,6 +192,16 @@ extern const u32 SPIN_TIME_NS;
 
 extern std::string GetOSVersionString();
 
+struct CPUInfo {
+	std::string name;
+	u32 num_big_cores;
+	u32 num_small_cores;
+	u32 num_threads;
+	u32 num_clusters;
+};
+
+const CPUInfo& GetCPUInfo();
+
 namespace Common
 {
 	/// Enables or disables the screen saver from starting.

common/common.vcxproj

@@ -32,6 +32,7 @@
   </PropertyGroup>
   <ItemDefinitionGroup>
     <ClCompile>
+      <AdditionalIncludeDirectories>%(AdditionalIncludeDirectories);$(SolutionDir)3rdparty\cpuinfo\include</AdditionalIncludeDirectories>
       <AdditionalIncludeDirectories>%(AdditionalIncludeDirectories);$(SolutionDir)3rdparty\fast_float\include</AdditionalIncludeDirectories>
       <AdditionalIncludeDirectories>%(AdditionalIncludeDirectories);$(SolutionDir)3rdparty\fmt\include</AdditionalIncludeDirectories>
       <AdditionalIncludeDirectories>%(AdditionalIncludeDirectories);$(SolutionDir)3rdparty\jpgd</AdditionalIncludeDirectories>
@@ -191,4 +192,4 @@
   <ImportGroup Label="ExtensionTargets">
     <Import Project="$(VCTargetsPath)\BuildCustomizations\masm.targets" />
   </ImportGroup>
-</Project>
+</Project>