Re: [PATCH 6/6] arm64: document the choice of page attributes for pgprot_dmacoherent
From: Will Deacon <will@kernel.org>
Date: 2019-08-16 18:05:30
Also in:
linux-iommu, linux-mips, linuxppc-dev, lkml
On Fri, Aug 16, 2019 at 07:59:42PM +0200, Christoph Hellwig wrote:
On Fri, Aug 16, 2019 at 06:31:18PM +0100, Will Deacon wrote:quoted
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.
Ah, I didn't think about the contextual stuff. In which case, with my change in wording: Acked-by: Will Deacon <will@kernel.org> and feel free to route it with the rest. Thanks, Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel