From: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>
To: "jerinj@marvell.com" <jerinj@marvell.com>,
"Gavin Hu (Arm Technology China)" <Gavin.Hu@arm.com>,
"yskoh@mellanox.com" <yskoh@mellanox.com>,
"Phil Yang (Arm Technology China)" <Phil.Yang@arm.com>,
"hemant.agrawal@nxp.com" <hemant.agrawal@nxp.com>
Cc: nd <nd@arm.com>, "russell@mellanox.com" <russell@mellanox.com>,
"mrosenbluth@mellanox.com" <mrosenbluth@mellanox.com>,
"dev@dpdk.org" <dev@dpdk.org>, nd <nd@arm.com>
Subject: Re: [dpdk-dev] [EXT] Default cacheline size for ARM
Date: Thu, 31 Jan 2019 18:09:05 +0000 [thread overview]
Message-ID: <AM6PR08MB3672143DEE893432A6B7320698910@AM6PR08MB3672.eurprd08.prod.outlook.com> (raw)
In-Reply-To: <ccd579b18f5161ed694ba1573be7f0bfd0911531.camel@marvell.com>
+ Phil and Hemant
<snip>
> > > > > Yes, we need to be inline with any other package. My
> > > > > understanding is that the image will be same for v8,v9,v10 (any
> > > > > input from distro engineers will help here). So, my question is,
> > > > > should the config file/name used by distros contain anything
> > > > > specific to armv8?
> > > > Jerin, after following [1], I am not unable to understand when the
> > > > file config/arm/arm64_armv8_linuxapp_gcc gets used. Is this file
> > > > required?
> > >
> > > If I understand it correctly, only for cross compiling on x86.
> > > distro folks build the generic image on arm64 with -Dmachine=default
> > > for arm64.
> > I thought for cross compilation we have target specific config files
> > in config/arm. For ex: arm64_dpaa2_linuxapp_gcc,
> > arm64_thunderx_linuxapp_gcc
>
> Yes. config/arm/arm64_armv8_linuxapp_gcc will be used for cross compile
> arm64 image, equivalent to config/defconfig_arm64-armv8a-linuxapp-gcc
> in cross compiling domain for meson.
>
Following is my understanding:
1) Distro folks build the generic image on arm64 with -Dmachine=default for arm64 (http://mails.dpdk.org/archives/dev/2019-January/123272.html)
2) Target specific builds and cross compilation is done using target specific configuration files (for ex: config/arm/arm64_dpaa2_linuxapp_gcc etc)
Are you saying, we need a cross compile mechanism to generate generic arm64 image (that would work across all Arm platforms)?
Do you have any use cases in mind for this?
> >
> > >
> > > > 1. http://mails.dpdk.org/archives/dev/2019-January/123272.html
next prev parent reply other threads:[~2019-01-31 18:09 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-04 19:59 [dpdk-dev] " Yongseok Koh
2019-01-05 5:14 ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
2019-01-05 22:47 ` Honnappa Nagarahalli
2019-01-06 7:56 ` Jerin Jacob Kollanukkaran
2019-01-14 7:47 ` Honnappa Nagarahalli
2019-01-14 8:05 ` Jerin Jacob Kollanukkaran
2019-01-16 1:57 ` Honnappa Nagarahalli
2019-01-18 5:50 ` Honnappa Nagarahalli
2019-01-23 9:05 ` Jerin Jacob Kollanukkaran
2019-01-23 16:28 ` Honnappa Nagarahalli
2019-01-28 12:56 ` Jerin Jacob Kollanukkaran
2019-01-31 18:09 ` Honnappa Nagarahalli [this message]
2019-02-01 17:16 ` Jerin Jacob Kollanukkaran
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