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Date: Sun, 6 Jun 2021 16:39:41 +0200
From: Christoph Hellwig <hch@....de>
To: guoren@...nel.org
Cc: anup.patel@....com, palmerdabbelt@...gle.com, arnd@...db.de,
wens@...e.org, maxime@...no.tech, drew@...gleboard.org,
liush@...winnertech.com, lazyparser@...il.com, wefu@...hat.com,
linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
linux-arch@...r.kernel.org, linux-sunxi@...ts.linux.dev,
Guo Ren <guoren@...ux.alibaba.com>,
Christoph Hellwig <hch@....de>
Subject: Re: [RFC PATCH v2 06/11] riscv: pgtable: Add DMA_COHERENT with
custom PTE attributes
NAK, no SOC must ever mess with pagetable attributes.
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