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From: Christoph Hellwig <hch@lst.de>
To: iommu@lists.linux-foundation.org,
	Russell King <linux@armlinux.org.uk>,
	Brian Cain <bcain@codeaurora.org>
Cc: Dillon Min <dillon.minfei@gmail.com>,
	Vladimir Murzin <vladimir.murzin@arm.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-hexagon@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: add support for the global coherent pool to the dma core
Date: Mon, 12 Jul 2021 08:16:57 +0200	[thread overview]
Message-ID: <20210712061704.4162464-1-hch@lst.de> (raw)

Hi all,

this series adds support for using the global coherent (aka uncached)
pool to the generic dma-direct code and then switches arm-nommu and
hexagon over to it, together with a bunch of cleanups.

Diffstat:
 arch/arm/Kconfig                |    5 -
 arch/arm/mm/dma-mapping-nommu.c |  173 +---------------------------------------
 arch/hexagon/Kconfig            |    1 
 arch/hexagon/kernel/dma.c       |   57 ++-----------
 include/linux/dma-map-ops.h     |   18 ++--
 kernel/dma/Kconfig              |    4 
 kernel/dma/coherent.c           |  159 +++++++++++++++++-------------------
 kernel/dma/direct.c             |   15 +++
 8 files changed, 124 insertions(+), 308 deletions(-)

             reply	other threads:[~2021-07-12  6:30 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-12  6:16 Christoph Hellwig [this message]
2021-07-12  6:16 ` [PATCH 1/7] dma-direct: add support for dma_coherent_default_memory Christoph Hellwig
2021-07-12  6:16 ` [PATCH 2/7] ARM/nommu: use the generic dma-direct code for non-coherent devices Christoph Hellwig
2021-07-12  6:17 ` [PATCH 3/7] dma-mapping: allow using the global coherent pool for !ARM Christoph Hellwig
2021-07-12  6:17 ` [PATCH 4/7] dma-mapping: simplify dma_init_coherent_memory Christoph Hellwig
2021-07-12  6:17 ` [PATCH 5/7] dma-mapping: add a dma_init_global_coherent helper Christoph Hellwig
2021-07-12  6:17 ` [PATCH 6/7] dma-mapping: make the global coherent pool conditional Christoph Hellwig
2021-07-23 21:41   ` Atish Patra
2021-07-12  6:17 ` [PATCH 7/7] hexagon: use the generic global coherent pool Christoph Hellwig
2021-08-14  1:57   ` Brian Cain
2021-08-18 14:27     ` 'Christoph Hellwig'
2021-07-28 15:20 ` add support for the global coherent pool to the dma core Brian Cain
2021-08-12 13:09   ` 'Christoph Hellwig'
2021-08-14  7:03 ` Christoph Hellwig

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