* [dpdk-dev] [PATCH] build: enable Arm NEON flags when __aarch64__ is defined
@ 2018-08-22 15:01 Honnappa Nagarahalli
2018-08-29 7:01 ` Gavin Hu
2018-08-29 7:21 ` Jerin Jacob
0 siblings, 2 replies; 3+ messages in thread
From: Honnappa Nagarahalli @ 2018-08-22 15:01 UTC (permalink / raw)
To: bruce.richardson; +Cc: dev, gavin.hu, rasland, therbert, honnappa.nagarahalli
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
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>
Reported-by: Raslan Darawsheh <rasland@mellanox.com>
Reported-by: Thomas F Herbert <therbert@redhat.com>
---
config/arm/meson.build | 3 ++-
mk/rte.cpuflags.mk | 2 +-
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/config/arm/meson.build b/config/arm/meson.build
index 40dbc87f7..94cca490e 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 60713137d..43ed84155 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
--
2.17.1
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [dpdk-dev] [PATCH] build: enable Arm NEON flags when __aarch64__ is defined
2018-08-22 15:01 [dpdk-dev] [PATCH] build: enable Arm NEON flags when __aarch64__ is defined Honnappa Nagarahalli
@ 2018-08-29 7:01 ` Gavin Hu
2018-08-29 7:21 ` Jerin Jacob
1 sibling, 0 replies; 3+ messages in thread
From: Gavin Hu @ 2018-08-29 7:01 UTC (permalink / raw)
To: Honnappa Nagarahalli, bruce.richardson
Cc: dev, rasland, therbert, Honnappa Nagarahalli, nd
> -----Original Message-----
> From: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
> Sent: Wednesday, August 22, 2018 11:01 PM
> To: bruce.richardson@intel.com
> Cc: dev@dpdk.org; Gavin Hu <Gavin.Hu@arm.com>; rasland@mellanox.com;
> therbert@redhat.com; Honnappa Nagarahalli
> <Honnappa.Nagarahalli@arm.com>
> Subject: [PATCH] build: enable Arm NEON flags when __aarch64__ is 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
>
> 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>
> Reported-by: Raslan Darawsheh <rasland@mellanox.com>
> Reported-by: Thomas F Herbert <therbert@redhat.com>
Acked-by: Gavin Hu <gavin.hu@arm.com>
> ---
> config/arm/meson.build | 3 ++-
> mk/rte.cpuflags.mk | 2 +-
> 2 files changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/config/arm/meson.build b/config/arm/meson.build index
> 40dbc87f7..94cca490e 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 60713137d..43ed84155
> 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
>
> --
> 2.17.1
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [dpdk-dev] [PATCH] build: enable Arm NEON flags when __aarch64__ is defined
2018-08-22 15:01 [dpdk-dev] [PATCH] build: enable Arm NEON flags when __aarch64__ is defined Honnappa Nagarahalli
2018-08-29 7:01 ` Gavin Hu
@ 2018-08-29 7:21 ` Jerin Jacob
1 sibling, 0 replies; 3+ messages in thread
From: Jerin Jacob @ 2018-08-29 7:21 UTC (permalink / raw)
To: Honnappa Nagarahalli; +Cc: bruce.richardson, dev, gavin.hu, rasland, therbert
-----Original Message-----
> Date: Wed, 22 Aug 2018 10:01:07 -0500
> From: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
> To: bruce.richardson@intel.com
> CC: dev@dpdk.org, gavin.hu@arm.com, rasland@mellanox.com,
> therbert@redhat.com, honnappa.nagarahalli@arm.com
> Subject: [dpdk-dev] [PATCH] build: enable Arm NEON flags when __aarch64__
> is defined
> X-Mailer: git-send-email 2.7.4
>
> External Email
>
> 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
>
> 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>
> Reported-by: Raslan Darawsheh <rasland@mellanox.com>
> Reported-by: Thomas F Herbert <therbert@redhat.com>
Fixes:
Cc: stable
blank line
Reported-by:
Suggested-by:
Signed-off-by:
In general, Please follow the above order.
With above change:
Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
> ---
> config/arm/meson.build | 3 ++-
> mk/rte.cpuflags.mk | 2 +-
> 2 files changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/config/arm/meson.build b/config/arm/meson.build
> index 40dbc87f7..94cca490e 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 60713137d..43ed84155 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
>
> --
> 2.17.1
>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2018-08-22 15:01 [dpdk-dev] [PATCH] build: enable Arm NEON flags when __aarch64__ is defined Honnappa Nagarahalli
2018-08-29 7:01 ` Gavin Hu
2018-08-29 7:21 ` Jerin Jacob
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