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Subject: Re: next-20160722 build: 1 failures 5 warnings (next-20160722)
References: <E1bQXSf-0008Uu-Ej@optimist> <20160722103829.GY6509@sirena.org.uk>
From: Robin Murphy <robin.murphy@arm.com>
Message-ID: <57920392.5070009@arm.com>
Date: Fri, 22 Jul 2016 12:29:22 +0100
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To: Mark Brown <broonie@kernel.org>, Matthew Wilcox <matthew.r.wilcox@intel.com>, Christoph Hellwig <hch@lst.de>, Dave Chinner <dchinner@redhat.com>
Cc: kernel-build-reports@lists.linaro.org, linaro-kernel@lists.linaro.org, linux-next@vger.kernel.org, linux-arm-kernel@lists.infradead.org, xfs@oss.sgi.com

On 22/07/16 11:38, Mark Brown wrote:
[...]
> DAX is explicitly disabled on
> 32 bit ARM due to problems with virtual aliasing caches (it's not clear
> to me that it shouldn't also be disabled for arm64 for the same reason).

>>From ARMv7 onwards, data caches have to behave as if PIPT, so I wouldn't
expect there to be a problem for arm64.

Robin.

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