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From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/3] ARM: nommu: R-class fixes
Date: Wed, 27 Apr 2016 13:18:10 +0200	[thread overview]
Message-ID: <5946329.0yh8Gf9SVh@wuerfel> (raw)
In-Reply-To: <57209A90.5070707@arm.com>

On Wednesday 27 April 2016 11:55:12 Vladimir Murzin wrote:
> ARMv7-A platform want to run without MMU can adjust it's dependency to
> 
> depends on ARCH_MULTI_V7 || ARCH_MULTI_V7R
> 
> where
> 
> config ARCH_MULTI_V7
>         bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
>         depends on MMU
> ...
> 
> config ARCH_MULTI_V7R
>         bool "MMU-less ARMv7 based platforms (Cortex-R)"
>         depends on !MMU
> ...
> 
> It is also should work for purely R-class platform, although I'm not
> keen on Kconfig and may be totally wrong here 

I would not use "depends on ARCH_MULTI_V7 || ARCH_MULTI_V7R" for
a machine that actually has an ARMv7-A core, that would be a bit
confusing.

If we want to allow building a kernel for ARMv7-A with MMU disabled,
I'd drop the 'depends on MMU' for ARCH_MULTI_V7 and move it to
whatever parts of the kernel actually have a build-time dependency
or that are known to be broken in that configuration.

	Arnd

  reply	other threads:[~2016-04-27 11:18 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-22 11:43 [PATCH 0/3] ARM: nommu: R-class fixes Vladimir Murzin
2016-04-22 11:43 ` [PATCH 1/3] ARM: nommu: fix PMSAv7 setup Vladimir Murzin
2016-04-22 11:43 ` [PATCH 2/3] ARM: nommu: change memory reserve for the vectors Vladimir Murzin
2016-04-22 11:43 ` [PATCH 3/3] ARM: domain: move {set,get}_domain under config guard Vladimir Murzin
2016-04-27 10:49   ` [PATCH 3/3] ARM: domain: move {set, get}_domain " Russell King - ARM Linux
2016-04-27 12:16     ` Vladimir Murzin
2016-04-28 13:50       ` Russell King - ARM Linux
2016-04-28 14:44         ` Vladimir Murzin
2016-04-28 14:59           ` Russell King - ARM Linux
2016-04-28 15:06             ` Vladimir Murzin
2016-04-23  6:54 ` [PATCH 0/3] ARM: nommu: R-class fixes Afzal Mohammed
2016-04-25  7:55   ` Vladimir Murzin
2016-04-25 12:59     ` Arnd Bergmann
2016-04-25 13:30       ` Afzal Mohammed
2016-04-26  8:17         ` Vladimir Murzin
2016-04-26  8:17       ` Vladimir Murzin
2016-04-26  9:10         ` Arnd Bergmann
2016-04-26 10:57           ` Vladimir Murzin
2016-04-26 11:59             ` Arnd Bergmann
2016-04-26 12:24               ` Vladimir Murzin
2016-04-26 18:12                 ` Arnd Bergmann
2016-04-27  9:10                   ` Vladimir Murzin
2016-04-27  9:50                     ` Arnd Bergmann
2016-04-27 10:55                       ` Vladimir Murzin
2016-04-27 11:18                         ` Arnd Bergmann [this message]
2016-04-26 15:23               ` Afzal Mohammed
2016-04-28  9:41                 ` Maxime Coquelin

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