X-Git-Url: https://git.distorted.org.uk/~mdw/catacomb/blobdiff_plain/25eccdf75b4839dfd3f018f19a81772d7d4350c6..b9b279b4105524d5d4e5dcd389141645d904aa0c:/base/dispatch.c

diff --git a/base/dispatch.c b/base/dispatch.c
index 50c94380..9ba6a7cd 100644
--- a/base/dispatch.c
+++ b/base/dispatch.c
@@ -47,6 +47,7 @@
 #  define CPUID1D_SSE2 (1u << 26)
 #  define CPUID1D_FXSR (1u << 24)
 #  define CPUID1C_AESNI (1u << 25)
+#  define CPUID1C_AVX (1u << 28)
 #  define CPUID1C_RDRAND (1u << 30)
 
 struct cpuid { unsigned a, b, c, d; };
@@ -229,6 +230,11 @@ struct auxentry { unsigned long type; union auxval value; };
 #  define WANT_AT_HWCAP(_) _(AT_HWCAP, u, hwcap)
 #endif
 
+#if defined(AT_HWCAP) && CPUFAM_ARM64
+#  define WANT_ANY 1
+#  define WANT_AT_HWCAP(_) _(AT_HWCAP, u, hwcap)
+#endif
+
 #if defined(AT_HWCAP2) && CPUFAM_ARMEL
 #  define WANT_ANY 1
 #  define WANT_AT_HWCAP2(_) _(AT_HWCAP2, u, hwcap2)
@@ -278,6 +284,12 @@ static unsigned hwcaps = 0;
 	_(ARM_D32, "arm:d32")						\
 	_(ARM_AES, "arm:aes")
 #endif
+#if CPUFAM_ARM64
+#  define WANTAUX(_)							\
+	WANT_AT_HWCAP(_)
+#  define CAPMAP(_)							\
+	_(ARM_AES, "arm:aes")
+#endif
 
 /* Build the bitmask for `hwcaps' from the `CAPMAP' list. */
 enum {
@@ -391,6 +403,9 @@ static void probe_hwcaps(void)
   if (probed.hwcap2 & HWCAP2_AES) hw |= HF_ARM_AES;
 #  endif
 #endif
+#if CPUFAM_ARM64
+  if (probed.hwcap & HWCAP_AES) hw |= HF_ARM_AES;
+#endif
 
   /* Store the bitmask of features we probed for everyone to see. */
   DISPATCH_STORE(hwcaps, hw);
@@ -531,6 +546,9 @@ int cpu_feature_p(int feat)
 		 cpuid_features_p(CPUID1D_SSE2, CPUID1C_AESNI));
     CASE_CPUFEAT(X86_RDRAND, "x86:rdrand",
 		 cpuid_features_p(0, CPUID1C_RDRAND));
+    CASE_CPUFEAT(X86_AVX, "x86:avx",
+		 xmm_registers_available_p() &&
+		 cpuid_features_p(0, CPUID1C_AVX));
 #endif
 #ifdef CAPMAP
 #  define FEATP__CASE(feat, tok)					\