aarch64: add support for HW_CAP based neon runtime detection

ZhangZhenhua · Nov 25, 2014 · 987d54b · 987d54b
1 parent cec00c9
commit 987d54b
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/arch/neon.c b/src/arch/neon.c
@@ -10,7 +10,7 @@ int ceph_arch_neon = 0;
 #include <elf.h>
 #include <link.h> // ElfW macro
 
-#if __arm__
+#if __arm__ || __aarch64__
 #include <asm/hwcap.h>
 #endif // __arm__
 
@@ -45,6 +45,8 @@ int ceph_arch_neon_probe(void)
 {
 #if __arm__ && __linux__
 	ceph_arch_neon = (get_hwcap() & HWCAP_NEON) == HWCAP_NEON;
+#elif __aarch64__ && __linux__
+	ceph_arch_neon = (get_hwcap() & HWCAP_ASIMD) == HWCAP_ASIMD;
 #else
 	if (0)
 		get_hwcap();  // make compiler shut up