From: Christoph Hellwig <hch@lst.de>
To: iommu@lists.linux-foundation.org
Cc: linux-xtensa@linux-xtensa.org, linux-kernel@vger.kernel.org,
Russell King <linux@armlinux.org.uk>,
linux-mm@kvack.org, Robin Murphy <robin.murphy@arm.com>,
linux-arm-kernel@lists.infradead.org
Subject: cleanup vmap usage in the dma-mapping layer
Date: Tue, 4 Jun 2019 08:55:01 +0200 [thread overview]
Message-ID: <20190604065504.25662-1-hch@lst.de> (raw)
Hi all,
the common DMA remapping code uses the vmalloc/vmap code to create
page table entries for DMA mappings. This series lifts the currently
arm specific VM_* flag for that into common code, and also exposes
it to userspace in procfs to better understand the mappings, and cleans
up a couple helpers in this area.
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next reply other threads:[~2019-06-04 6:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-04 6:55 Christoph Hellwig [this message]
2019-06-04 6:55 ` [PATCH 1/3] vmalloc: lift the arm flag for coherent mappings to common code Christoph Hellwig
2019-06-04 6:55 ` [PATCH 2/3] dma-mapping: always use VM_DMA_COHERENT for generic DMA remap Christoph Hellwig
2019-06-04 6:55 ` [PATCH 3/3] dma-mapping: introduce a dma_common_find_pages helper Christoph Hellwig
2019-08-30 6:29 cleanup vmap usage in the dma-mapping layer Christoph Hellwig
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