From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: Steps to submit a new arch/arm port
Date: Fri, 25 Sep 2015 17:49:29 +0200 [thread overview]
Message-ID: <6909066.JodC72LHrN@wuerfel> (raw)
In-Reply-To: <56056939.5090409@free.fr>
On Friday 25 September 2015 17:33:13 Mason wrote:
> On 25/09/2015 17:28, Mason wrote:
>
> > About NEON. I had 'select VFP' but I see that CPU_V7 enables VFPv3 and VFP.
> > Isn't NEON required to support user-space programs using NEON instructions?
> > arch/arm/kernel/entry-armv.S
>
> I'm taking cues from exynos and omap2, are these good references?
>
> config ARCH_OMAP2PLUS_TYPICAL (default y) selects NEON if CPU_V7.
> Can I do something similar? (My platform is only CPU_V7.)
No, you should leave it turned off and just enable that option in the
defconfig. There is no need to prevent anyone from running a kernel
with NEON disabled if they have matching user space.
Arnd
next prev parent reply other threads:[~2015-09-25 15:49 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-21 15:00 Steps to submit a new arch/arm port Mason
2015-09-21 15:49 ` Arnd Bergmann
2015-09-22 14:36 ` Mason
2015-09-22 14:51 ` Arnd Bergmann
2015-09-22 14:56 ` Russell King - ARM Linux
2015-09-22 15:54 ` Mason
2015-09-22 16:29 ` Russell King - ARM Linux
2015-09-23 8:49 ` Mason
2015-09-23 9:13 ` Russell King - ARM Linux
2015-09-23 9:21 ` Mason
2015-09-23 9:26 ` Russell King - ARM Linux
2015-09-22 19:15 ` Arnd Bergmann
2015-09-23 9:26 ` Mason
2015-09-23 9:34 ` Arnd Bergmann
2015-09-25 13:06 ` Mason
2015-09-25 13:17 ` Arnd Bergmann
2015-09-25 13:35 ` Mason
2015-09-25 14:11 ` Arnd Bergmann
2015-09-25 15:28 ` Mason
2015-09-25 15:33 ` Mason
2015-09-25 15:49 ` Arnd Bergmann [this message]
2015-09-25 15:52 ` Arnd Bergmann
2015-09-25 16:09 ` Mason
2015-09-25 17:20 ` Arnd Bergmann
2015-09-28 13:48 ` Mason
2015-09-28 14:43 ` Måns Rullgård
2015-09-28 16:32 ` Mason
2015-09-28 17:29 ` Russell King - ARM Linux
2015-09-22 15:48 ` Måns Rullgård
2015-09-25 9:27 ` Mason
2015-09-25 9:46 ` Javier Martinez Canillas
2015-09-25 11:56 ` Arnd Bergmann
2015-09-25 12:06 ` Russell King - ARM Linux
2015-09-21 15:51 ` Måns Rullgård
2015-09-21 16:13 ` Russell King - ARM Linux
2015-09-22 16:08 ` Mason
2015-09-22 16:24 ` Russell King - ARM Linux
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