Enable win-arm64

This patch implements the required APIs for the new
win-arm64 platform by reading topology information via
Windows API.
Build config: cmake . -A ARM64

CMakeLists.txt

@@ -65,7 +65,7 @@ IF(NOT CMAKE_SYSTEM_PROCESSOR)
  "cpuinfo will compile, but cpuinfo_initialize() will always fail.")
  SET(CPUINFO_SUPPORTED_PLATFORM FALSE)
  ENDIF()
-ELSEIF(NOT CPUINFO_TARGET_PROCESSOR MATCHES "^(i[3-6]86|AMD64|x86(_64)?|armv[5-8].*|aarch64|arm64)$")
+ELSEIF(NOT CPUINFO_TARGET_PROCESSOR MATCHES "^(i[3-6]86|AMD64|x86(_64)?|armv[5-8].*|aarch64|arm64|ARM64)$")
  MESSAGE(WARNING
  "Target processor architecture \"${CPUINFO_TARGET_PROCESSOR}\" is not supported in cpuinfo. "
  "cpuinfo will compile, but cpuinfo_initialize() will always fail.")
@@ -171,6 +171,9 @@ IF(CPUINFO_SUPPORTED_PLATFORM)
  LIST(APPEND CPUINFO_SRCS
  src/arm/android/properties.c)
  ENDIF()
+ ELSEIF(CMAKE_SYSTEM_NAME STREQUAL "Windows" AND CPUINFO_TARGET_PROCESSOR STREQUAL "ARM64")
+ LIST(APPEND CPUINFO_SRCS src/arm/windows/init-by-logical-sys-info.c)
+ LIST(APPEND CPUINFO_SRCS src/arm/windows/init.c)
  ENDIF()
 
  IF(CMAKE_SYSTEM_NAME STREQUAL "Emscripten")

README.md

@@ -256,6 +256,7 @@ LDFLAGS+= $(pkg-config --libs libcpuinfo)
 - [x] Windows
  - [x] x86
  - [x] x86-64
+ - [x] arm64
 
 ## Methods
 
@@ -264,6 +265,7 @@ LDFLAGS+= $(pkg-config --libs libcpuinfo)
  - [x] Using `/proc/cpuinfo` on ARM
  - [x] Using `ro.chipname`, `ro.board.platform`, `ro.product.board`, `ro.mediatek.platform`, `ro.arch` properties (Android)
  - [ ] Using kernel log (`dmesg`) on ARM Linux
+ - [x] Using Windows registry on ARM64 Windows
 - Vendor and microarchitecture detection
  - [x] Intel-designed x86/x86-64 cores (up to Sunny Cove, Goldmont Plus, and Knights Mill)
  - [x] AMD-designed x86/x86-64 cores (up to Puma/Jaguar and Zen 2)
@@ -286,6 +288,7 @@ LDFLAGS+= $(pkg-config --libs libcpuinfo)
  - [x] Using `/proc/self/auxv` (Android/ARM)
  - [ ] Using instruction probing on ARM (Linux)
  - [ ] Using CPUID registers on ARM64 (Linux)
+ - [x] Using IsProcessorFeaturePresent on ARM64 Windows
 - Cache detection
  - [x] Using CPUID leaf 0x00000002 (x86/x86-64)
  - [x] Using CPUID leaf 0x00000004 (non-AMD x86/x86-64)
@@ -297,6 +300,7 @@ LDFLAGS+= $(pkg-config --libs libcpuinfo)
  - [x] Using `sysctlbyname` (Mach)
  - [x] Using sysfs `typology` directories (ARM/Linux)
  - [ ] Using sysfs `cache` directories (Linux)
+ - [x] Using `GetLogicalProcessorInformationEx` on ARM64 Windows
 - TLB detection
  - [x] Using CPUID leaf 0x00000002 (x86/x86-64)
  - [ ] Using CPUID leaves 0x80000005-0x80000006 and 0x80000019 (AMD x86/x86-64)