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From: Christoph Hellwig <hch@lst.de>
To: iommu@lists.linux-foundation.org
Cc: Guan Xuetao <gxt@pku.edu.cn>, Shawn Anastasio <shawn@anastas.io>,
	Russell King <linux@armlinux.org.uk>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	Robin Murphy <robin.murphy@arm.com>,
	Paul Burton <paul.burton@mips.com>,
	James Hogan <jhogan@kernel.org>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	linuxppc-dev@lists.ozlabs.org, linux-mips@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-m68k@lists.linux-m68k.org, linux-kernel@vger.kernel.org
Subject: cleanup the dma_pgprot handling
Date: Fri, 16 Aug 2019 09:07:48 +0200
Message-ID: <20190816070754.15653-1-hch@lst.de> (raw)

Hi all,

this series replaced the arch_dma_mmap_pgprot hooks with the
simpler pgprot_dmacoherent as used by the arm code already and
cleans up various bits around that area.

I'd still like to hear a confirmation from the mips folks how
the write combibe attribute can or can't work with the KSEG1
uncached segment.

             reply index

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-16  7:07 Christoph Hellwig [this message]
2019-08-16  7:07 ` [PATCH 1/6] MIPS: remove support for DMA_ATTR_WRITE_COMBINE Christoph Hellwig
2019-08-16  7:07 ` [PATCH 2/6] unicore32: remove the unused pgprot_dmacoherent define Christoph Hellwig
2019-08-16  7:07 ` [PATCH 3/6] arm-nommu: " Christoph Hellwig
2019-08-16  7:07 ` [PATCH 4/6] dma-mapping: remove arch_dma_mmap_pgprot Christoph Hellwig
2019-08-16  7:43   ` Geert Uytterhoeven
2019-08-16  7:07 ` [PATCH 5/6] dma-mapping: make dma_atomic_pool_init self-contained Christoph Hellwig
2019-08-16  7:07 ` [PATCH 6/6] arm64: document the choice of page attributes for pgprot_dmacoherent Christoph Hellwig
2019-08-16 17:31   ` Will Deacon
2019-08-16 17:36     ` Mark Rutland
2019-08-16 17:59     ` Christoph Hellwig
2019-08-16 18:05       ` Will Deacon

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