commit 248aa1b9386ac7b5b36af78c4d8af60d4db8d434
author Mykola Hohsadze <koliagogsadze@gmail.com> Tue Sep 05 15:13:54 2023 +0300
committer GitHub <noreply@github.com> Tue Sep 05 14:13:54 2023 +0200
tree 1dbb3ac42feae4e225b2b3f55f86531002830145
parent 199d299ce5291a5740a567f0f91784d9c754215a

Add AMD ZEN4 Genoa detection (#329)

src/impl_x86__base_implementation.inl

diff --git a/src/impl_x86__base_implementation.inl b/src/impl_x86__base_implementation.inl
index e7705f3..0cd46bb 100644
--- a/src/impl_x86__base_implementation.inl
+++ b/src/impl_x86__base_implementation.inl
@@ -833,6 +833,7 @@
         // https://en.wikichip.org/wiki/amd/microarchitectures/zen_3
         return AMD_ZEN3;
       case CPUID(0x19, 0x10):
+      case CPUID(0x19, 0x11):
       case CPUID(0x19, 0x61):
       case CPUID(0x19, 0x74):
         // https://en.wikichip.org/wiki/amd/microarchitectures/zen_4

test/cpuinfo_x86_test.cc

diff --git a/test/cpuinfo_x86_test.cc b/test/cpuinfo_x86_test.cc
index 00f0251..9640f51 100644
--- a/test/cpuinfo_x86_test.cc
+++ b/test/cpuinfo_x86_test.cc
@@ -959,6 +959,20 @@
   EXPECT_EQ(GetX86Microarchitecture(&info), X86Microarchitecture::AMD_ZEN2);
 }
 
+// http://users.atw.hu/instlatx64/AuthenticAMD/AuthenticAMD0A10F11_K19_Genoa_02_CPUID.txt
+TEST_F(CpuidX86Test, AMD_K19_ZEN4_GENOA) {
+  cpu().SetLeaves({
+      {{0x00000000, 0}, Leaf{0x00000010, 0x68747541, 0x444D4163, 0x69746E65}},
+      {{0x00000001, 0}, Leaf{0x00A10F11, 0x00200800, 0x7EFA320B, 0x178BFBFF}},
+  });
+  const auto info = GetX86Info();
+
+  EXPECT_EQ(info.model, 0x11);
+  EXPECT_EQ(info.family, 0x19);
+  EXPECT_STREQ(info.vendor, CPU_FEATURES_VENDOR_AUTHENTIC_AMD);
+  EXPECT_EQ(GetX86Microarchitecture(&info), X86Microarchitecture::AMD_ZEN4);
+}
+
 // http://users.atw.hu/instlatx64/GenuineIntel/GenuineIntel00906A4_AlderLakeP_00_CPUID.txt
 TEST_F(CpuidX86Test, INTEL_ALDER_LAKE_AVX_VNNI) {
   cpu().SetOsBackupsExtendedRegisters(true);