Re: [PATCH 6/6] arm64: document the choice of page attributes for pgprot_dmacoherent
From: Christoph Hellwig <hch@lst.de>
Date: 2019-08-16 17:59:49
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linux-iommu, linux-mips, linuxppc-dev, lkml
On Fri, Aug 16, 2019 at 06:31:18PM +0100, Will Deacon wrote:
Mind if I tweak the second sentence to be:
This is different from "Device-nGnR[nE]" memory which is intended for MMIO
and thus forbids speculation, preserves access size, requires strict
alignment and can also force write responses to come from the endpoint.
? It's a small change, but it better fits with the arm64 terminology
("strongly ordered" is no longer used in the architecture).
If you're happy with that, I can make the change and queue this patch
for 5.4.I'm fine with the change, but you really need this series as base, as there is no pgprot_dmacoherent before the series. So I think I'll have to queue it up if we want it for 5.4, and I'll need a few more reviews for the other patches in this series first. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel