Update AArch64 features to Linux 6.6. (#347)

Author: tamaszarm

include/cpuinfo_aarch64.h

@@ -190,6 +190,8 @@ typedef struct {
   int smebi32i32 : 1;  // 1-bit binary to 32-bit integer outer product.
   int smeb16b16 : 1;   // SME2.1 BFloat16 instructions.
   int smef16f16 : 1;   // FP16 to FP16 outer product.
+  int mops : 1;        // Standardized memory operations.
+  int hbc : 1;         // Hinted conditional branches.
 
   // Make sure to update Aarch64FeaturesEnum below if you add a field here.
 } Aarch64Features;
@@ -284,6 +286,8 @@ typedef enum {
   AARCH64_SME_BI32I32,
   AARCH64_SME_B16B16,
   AARCH64_SME_F16F16,
+  AARCH64_MOPS,
+  AARCH64_HBC,
   AARCH64_LAST_,
 } Aarch64FeaturesEnum;
 

include/internal/hwcaps.h

@@ -104,6 +104,8 @@ CPU_FEATURES_START_CPP_NAMESPACE
 #define AARCH64_HWCAP2_SME_BI32I32 (1UL << 40)
 #define AARCH64_HWCAP2_SME_B16B16 (1UL << 41)
 #define AARCH64_HWCAP2_SME_F16F16 (1UL << 42)
+#define AARCH64_HWCAP2_MOPS (1UL << 43)
+#define AARCH64_HWCAP2_HBC (1UL << 44)
 
 // http://elixir.free-electrons.com/linux/latest/source/arch/arm/include/uapi/asm/hwcap.h
 #define ARM_HWCAP_SWP (1UL << 0)

src/impl_aarch64__base_implementation.inl

@@ -112,7 +112,10 @@
        AARCH64_HWCAP2_SME_BI32I32)                                           \
   LINE(AARCH64_SME_B16B16, smeb16b16, "smeb16b16", 0,                        \
        AARCH64_HWCAP2_SME_B16B16)                                            \
-  LINE(AARCH64_SME_F16F16, smef16f16, "smef16f16", 0, AARCH64_HWCAP2_SME_F16F16)
+  LINE(AARCH64_SME_F16F16, smef16f16, "smef16f16", 0,                        \
+       AARCH64_HWCAP2_SME_F16F16)                                            \
+  LINE(AARCH64_MOPS, mops, "mops", 0, AARCH64_HWCAP2_MOPS)                   \
+  LINE(AARCH64_HBC, hbc, "hbc", 0, AARCH64_HWCAP2_HBC)
 #define INTROSPECTION_PREFIX Aarch64
 #define INTROSPECTION_ENUM_PREFIX AARCH64
 #include "define_introspection_and_hwcaps.inl"

test/cpuinfo_aarch64_test.cc

@@ -310,6 +310,8 @@ CPU revision    : 3)");
   EXPECT_FALSE(info.features.smebi32i32);
   EXPECT_FALSE(info.features.smeb16b16);
   EXPECT_FALSE(info.features.smef16f16);
+  EXPECT_FALSE(info.features.mops);
+  EXPECT_FALSE(info.features.hbc);
 }
 #elif defined(CPU_FEATURES_OS_MACOS)
 TEST_F(CpuidAarch64Test, FromDarwinSysctlFromName) {