X-Git-Url: https://git.distorted.org.uk/~mdw/catacomb/blobdiff_plain/ce7001d8ef72928ff966e3c9da1c62ce1d00d2c0..8c5956c14f5834a072e1a9345ae1f356b14164ca:/base/dispatch.c

diff --git a/base/dispatch.c b/base/dispatch.c
index f0531ea9..131e3fdb 100644
--- a/base/dispatch.c
+++ b/base/dispatch.c
@@ -46,7 +46,10 @@
 #  define EFLAGS_ID (1u << 21)
 #  define CPUID1D_SSE2 (1u << 26)
 #  define CPUID1D_FXSR (1u << 24)
+#  define CPUID1C_PCLMUL (1u << 1)
+#  define CPUID1C_SSSE3 (1u << 9)
 #  define CPUID1C_AESNI (1u << 25)
+#  define CPUID1C_AVX (1u << 28)
 #  define CPUID1C_RDRAND (1u << 30)
 
 struct cpuid { unsigned a, b, c, d; };
@@ -334,14 +337,16 @@ static unsigned hwcaps = 0;
 	_(ARM_NEON, "arm:neon")						\
 	_(ARM_V4, "arm:v4")						\
 	_(ARM_D32, "arm:d32")						\
-	_(ARM_AES, "arm:aes")
+	_(ARM_AES, "arm:aes")						\
+	_(ARM_PMULL, "arm:pmull")
 #endif
 #if CPUFAM_ARM64
 #  define WANTAUX(_)							\
 	WANT_AT_HWCAP(_)
 #  define CAPMAP(_)							\
 	_(ARM_NEON, "arm:neon")						\
-	_(ARM_AES, "arm:aes")
+	_(ARM_AES, "arm:aes")						\
+	_(ARM_PMULL, "arm:pmull")
 #endif
 
 /* Build the bitmask for `hwcaps' from the `CAPMAP' list. */
@@ -455,10 +460,14 @@ static void probe_hwcaps(void)
 #  ifdef HWCAP2_AES
   if (probed.hwcap2 & HWCAP2_AES) hw |= HF_ARM_AES;
 #  endif
+#  ifdef HWCAP2_PMULL
+  if (probed.hwcap2 & HWCAP2_PMULL) hw |= HF_ARM_PMULL;
+#  endif
 #endif
 #if CPUFAM_ARM64
   if (probed.hwcap & HWCAP_ASIMD) hw |= HF_ARM_NEON;
   if (probed.hwcap & HWCAP_AES) hw |= HF_ARM_AES;
+  if (probed.hwcap & HWCAP_PMULL) hw |= HF_ARM_PMULL;
 #endif
 
   /* Store the bitmask of features we probed for everyone to see. */
@@ -600,6 +609,15 @@ int cpu_feature_p(int feat)
 		 xmm_registers_available_p());
     CASE_CPUFEAT(X86_RDRAND, "x86:rdrand",
 		 cpuid_features_p(0, CPUID1C_RDRAND) && rdrand_works_p());
+    CASE_CPUFEAT(X86_AVX, "x86:avx",
+		 cpuid_features_p(0, CPUID1C_AVX) &&
+		 xmm_registers_available_p());
+    CASE_CPUFEAT(X86_SSSE3, "x86:ssse3",
+		 cpuid_features_p(0, CPUID1C_SSSE3) &&
+		 xmm_registers_available_p());
+    CASE_CPUFEAT(X86_PCLMUL, "x86:pclmul",
+		 cpuid_features_p(0, CPUID1C_PCLMUL) &&
+		 xmm_registers_available_p());
 #endif
 #ifdef CAPMAP
 #  define FEATP__CASE(feat, tok)					\