From: Jerin Jacob Kollanukkaran <jerinj@marvell.com>
To: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>,
"Gavin Hu (Arm Technology China)" <Gavin.Hu@arm.com>,
"dev@dpdk.org" <dev@dpdk.org>
Cc: nd <nd@arm.com>, "thomas@monjalon.net" <thomas@monjalon.net>,
"Pavan Nikhilesh Bhagavatula" <pbhagavatula@marvell.com>,
"stable@dpdk.org" <stable@dpdk.org>, nd <nd@arm.com>
Subject: Re: [dpdk-dev] [PATCH] config: fix meson build failure on ThunderX2
Date: Mon, 15 Jul 2019 14:34:52 +0000 [thread overview]
Message-ID: <BYAPR18MB2424062D38BB9799073CDF8FC8CF0@BYAPR18MB2424.namprd18.prod.outlook.com> (raw)
In-Reply-To: <VE1PR08MB5149A260DCB7D7348522645098CF0@VE1PR08MB5149.eurprd08.prod.outlook.com>
> -----Original Message-----
> From: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>
> Sent: Monday, July 15, 2019 7:55 PM
> To: Jerin Jacob Kollanukkaran <jerinj@marvell.com>; Gavin Hu (Arm
> Technology China) <Gavin.Hu@arm.com>; dev@dpdk.org
> Cc: nd <nd@arm.com>; thomas@monjalon.net; Pavan Nikhilesh Bhagavatula
> <pbhagavatula@marvell.com>; stable@dpdk.org; Honnappa Nagarahalli
> <Honnappa.Nagarahalli@arm.com>; nd <nd@arm.com>
> Subject: [EXT] RE: [PATCH] config: fix meson build failure on ThunderX2
>
> > > Jerin, any reason for not enabling LSE on ThunderX2?
> >
> > LSE is enabled when -mcpu=thunderx2t99 selected.
> >
> > $ aarch64-linux-gnu-gcc -mcpu=thunderx2t99 -dM -E - </dev/null | grep
> > __ARM_FEATURE_ATOMICS #define __ARM_FEATURE_ATOMICS 1
>
> This does not work with older GCC versions [1]. They need LSE enabled
> explicitly.
>
> [1] https://godbolt.org/z/2nmASR
Looks like, you have selected "armv8-a+crc" not "armv8.1-a+crc" in the godbolt.
It comes properly with armv8.1-a+crc. Please check.
>
> >
> > >
> > > >
> > > > Acked-by: Jerin Jacob <jerinj@marvell.com>
next prev parent reply other threads:[~2019-07-15 14:35 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-12 11:20 Jerin Jacob Kollanukkaran
2019-07-12 16:39 ` Honnappa Nagarahalli
2019-07-15 3:57 ` Jerin Jacob Kollanukkaran
2019-07-15 14:24 ` Honnappa Nagarahalli
2019-07-15 14:34 ` Jerin Jacob Kollanukkaran [this message]
2019-07-15 16:04 ` Honnappa Nagarahalli
2019-07-15 22:20 ` [dpdk-dev] [dpdk-stable] " Thomas Monjalon
-- strict thread matches above, loose matches on Subject: below --
2019-07-12 9:58 [dpdk-dev] " Gavin Hu
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