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Add X86 GFNI detection

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This commit is contained in:
Mykola Hohsdze 2022-10-23 20:03:05 +03:00 committed by Mizux
parent 8ca7c65f65
commit 3485a46a6d
3 changed files with 23 additions and 1 deletions
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2
include/cpuinfo_x86.h
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@ -100,6 +100,7 @@ typedef struct {
int ss : 1;
int adx : 1;
int lzcnt : 1; // Note: this flag is called ABM for AMD, LZCNT for Intel.
int gfni: 1;
// Make sure to update X86FeaturesEnum below if you add a field here.
} X86Features;
@ -256,6 +257,7 @@ typedef enum {
X86_SS,
X86_ADX,
X86_LZCNT,
X86_GFNI,
X86_LAST_,
} X86FeaturesEnum;

4
src/impl_x86__base_implementation.inl
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@ -310,6 +310,7 @@ static void ParseCpuId(const Leaves* leaves, X86Info* info,
features->clflushopt = IsBitSet(leaf_7.ebx, 23);
features->clwb = IsBitSet(leaf_7.ebx, 24);
features->sha = IsBitSet(leaf_7.ebx, 29);
features->gfni = IsBitSet(leaf_7.ecx, 8);
features->vaes = IsBitSet(leaf_7.ecx, 9);
features->vpclmulqdq = IsBitSet(leaf_7.ecx, 10);
features->adx = IsBitSet(leaf_7.ebx, 19);
@ -1895,7 +1896,8 @@ CacheInfo GetX86CacheInfo(void) {
LINE(X86_DCA, dca, , , ) \
LINE(X86_SS, ss, , , ) \
LINE(X86_ADX, adx, , , ) \
LINE(X86_LZCNT, lzcnt, , , )
LINE(X86_LZCNT, lzcnt, , , ) \
LINE(X86_GFNI, gfni, , , )
#define INTROSPECTION_PREFIX X86
#define INTROSPECTION_ENUM_PREFIX X86
#include "define_introspection.inl"

18
test/cpuinfo_x86_test.cc
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@ -1011,6 +1011,24 @@ TEST_F(CpuidX86Test, INTEL_TIGER_LAKE_AVX512) {
EXPECT_EQ(GetX86Microarchitecture(&info), X86Microarchitecture::INTEL_TGL);
}
// http://users.atw.hu/instlatx64/GenuineIntel/GenuineIntel00706E5_IceLakeY_CPUID.txt
TEST_F(CpuidX86Test, INTEL_ICE_LAKE_GFNI) {
cpu().SetLeaves({
{{0x00000000, 0}, Leaf{0x0000001B, 0x756E6547, 0x6C65746E, 0x49656E69}},
{{0x00000001, 0}, Leaf{0x000706E5, 0x00100800, 0x7FFAFBBF, 0xBFEBFBFF}},
{{0x00000007, 0}, Leaf{0x00000000, 0xF2BF27EF, 0x40405F4E, 0xBC000410}},
});
const auto info = GetX86Info();
EXPECT_STREQ(info.vendor, CPU_FEATURES_VENDOR_GENUINE_INTEL);
EXPECT_EQ(info.family, 0x06);
EXPECT_EQ(info.model, 0x7E);
EXPECT_TRUE(info.features.gfni);
EXPECT_EQ(GetX86Microarchitecture(&info), X86Microarchitecture::INTEL_ICL);
}
// http://users.atw.hu/instlatx64/AuthenticAMD/AuthenticAMD0100FA0_K10_Thuban_CPUID.txt
TEST_F(CpuidX86Test, AMD_THUBAN_CACHE_INFO) {
cpu().SetLeaves({