From: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Date: Sun, 2 Sep 2018 18:35:28 +0000 (-0500)
Subject: build: enable ARM NEON flag when __aarch64__ defined
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=68acaa86ae639e3cdd94e419f546045a1b0ce6ca;p=dpdk.git

build: enable ARM NEON flag when __aarch64__ defined

GCC version 4.8.5 does not pre-define __ARM_NEON. NEON is not
optional for ArmV8. Hence NEON related code can be enabled
when __aarch64__ is defined.

Bugzilla ID: 82
Cc: stable@dpdk.org

Reported-by: Raslan Darawsheh <rasland@mellanox.com>
Reported-by: Thomas F Herbert <therbert@redhat.com>
Signed-off-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Reviewed-by: Phil Yang <phil.yang@arm.com>
Reviewed-by: Gavin Hu <gavin.hu@arm.com>
Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
---

diff --git a/config/arm/meson.build b/config/arm/meson.build
index 40dbc87f75..94cca490ec 100644
--- a/config/arm/meson.build
+++ b/config/arm/meson.build
@@ -157,7 +157,8 @@ else
 endif
 message(machine_args)
 
-if cc.get_define('__ARM_NEON', args: machine_args) != ''
+if (cc.get_define('__ARM_NEON', args: machine_args) != '' or
+    cc.get_define('__aarch64__', args: machine_args) != '')
 	dpdk_conf.set('RTE_MACHINE_CPUFLAG_NEON', 1)
 	compile_time_cpuflags += ['RTE_CPUFLAG_NEON']
 endif
diff --git a/mk/rte.cpuflags.mk b/mk/rte.cpuflags.mk
index 60713137da..43ed84155b 100644
--- a/mk/rte.cpuflags.mk
+++ b/mk/rte.cpuflags.mk
@@ -89,7 +89,7 @@ CPUFLAGS += VSX
 endif
 
 # ARM flags
-ifneq ($(filter $(AUTO_CPUFLAGS),__ARM_NEON),)
+ifneq ($(filter __ARM_NEON __aarch64__,$(AUTO_CPUFLAGS)),)
 CPUFLAGS += NEON
 endif