From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: Kconfig: Let ARM_ERRATA_364296 not depend on CONFIG_SMP
Date: Tue, 9 Jul 2013 09:37:13 +0100 [thread overview]
Message-ID: <20130709083713.GA26895@mudshark.cambridge.arm.com> (raw)
In-Reply-To: <20130708215320.GU24642@n2100.arm.linux.org.uk>
On Mon, Jul 08, 2013 at 10:53:20PM +0100, Russell King - ARM Linux wrote:
> On Mon, Jul 08, 2013 at 06:38:09PM -0300, Fabio Estevam wrote:
> > From: Fabio Estevam <fabio.estevam@freescale.com>
> >
> > imx_v6_v7_defconfig handles both multi-core and single-core SoCs, and it has
> > CONFIG_SMP=y selected by default.
> >
> > With such config we cannot select ARM_ERRATA_364296, as it depends on !SMP.
> >
> > Let ARM_ERRATA_364296 be undependent on CONFIG_SMP, so that we can select
> > this erratum for the ARM1136 SoCs, even if CONFIG_SMP=y is enabled.
>
> I'll wait for ARM Ltd folk to comment on this (they're at Linaro Connect
> at the moment which has extremely poor 'net connectivity from what I've
> been hearing). We might need to bypass the workaround code in the non-SMP
> case.
The workaround (in proc-v6.S) checks the midr specifically for 1136 r0p2, so
it should be fine to remove the CONFIG_SMP dependency given that the 1136 is
UP only.
Will
next prev parent reply other threads:[~2013-07-09 8:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-08 21:38 [PATCH] ARM: Kconfig: Let ARM_ERRATA_364296 not depend on CONFIG_SMP Fabio Estevam
2013-07-08 21:53 ` Russell King - ARM Linux
2013-07-09 8:37 ` Will Deacon [this message]
2013-07-09 8:30 ` Dave Martin
2013-07-12 15:15 ` Catalin Marinas
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