linux-kernel - Re: [PATCH v4] arm64: Add workaround for Cavium erratum 27456

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Date:	Fri, 26 Feb 2016 15:20:51 +0000
From:	Catalin Marinas <catalin.marinas@....com>
To:	David Daney <ddaney.cavm@...il.com>
Cc:	Will Deacon <will.deacon@....com>,
	linux-arm-kernel@...ts.infradead.org,
	Mark Rutland <mark.rutland@....com>,
	Marc Zyngier <marc.zyngier@....com>,
	David Daney <david.daney@...ium.com>,
	linux-kernel@...r.kernel.org, Andrew Pinski <apinski@...ium.com>
Subject: Re: [PATCH v4] arm64: Add workaround for Cavium erratum 27456

On Wed, Feb 24, 2016 at 05:44:57PM -0800, David Daney wrote:
> From: Andrew Pinski <apinski@...ium.com>
> 
> On ThunderX T88 pass 1.x through 2.1 parts, broadcast TLBI
> instructions may cause the icache to become corrupted if it contains
> data for a non-current ASID.
> 
> This patch implements the workaround (which invalidates the local
> icache when switching the mm) by using code patching.
> 
> Signed-off-by: Andrew Pinski <apinski@...ium.com>
> Signed-off-by: David Daney <david.daney@...ium.com>
> Reviewed-by: Will Deacon <will.deacon@....com>

Applied. Thanks.

-- 
Catalin