From: Janne Grunau <j@jannau.net>
Date: Thu, 18 Sep 2014 20:15:30 +0000 (+0200)
Subject: aarch64: add support for HW_CAP based neon runtime detection
X-Git-Tag: v0.91~163^2~5
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=987d54b7cd9d35e58f642e976b6582c8ca7377d0;p=ceph.git

aarch64: add support for HW_CAP based neon runtime detection
---

diff --git a/src/arch/neon.c b/src/arch/neon.c
index 6dad7e6e13eb..f059080b96b8 100644
--- 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