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Message-ID: <20150819160558.GY1820@rric.localhost>
Date: Wed, 19 Aug 2015 18:05:58 +0200
From: Robert Richter <robert.richter@...iumnetworks.com>
To: David Daney <ddaney@...iumnetworks.com>
CC: Robert Richter <rric@...nel.org>,
Marc Zygnier <marc.zyngier@....com>,
Thomas Gleixner <tglx@...utronix.de>,
Jason Cooper <jason@...edaemon.net>,
Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will.deacon@....com>,
Tirumalesh Chalamarla <tchalamarla@...ium.com>,
<linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v4 2/5] irqchip, gicv3: Workaround for Cavium ThunderX
erratum 23154
On 17.08.15 10:00:53, David Daney wrote:
> On 08/14/2015 11:28 AM, Robert Richter wrote:
> >+config CAVIUM_ERRATUM_23154
> >+ bool "Cavium erratum 23154: Access to ICC_IAR1_EL1 is not sync'ed"
> >+ depends on ARCH_THUNDER
>
> None of the other errata depend on a specific ARCH_*. I think we should
> remove this 'depends on', so that a generic kernel can be configured to work
> on Thunder without having to first select ARCH_THUNDER.
Right, will remove the dependency. Same as for the other errata then.
Thanks,
-Robert
> >+ default y
> >+ help
> >+ The gicv3 of ThunderX requires a modified version for
> >+ reading the IAR status to ensure data synchronization
> >+ (access to icc_iar1_el1 is not sync'ed before and after).
> >+
> >+ If unsure, say Y.
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