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From: Nicolin Chen <nicoleotsuka@gmail.com>
To: hch@lst.de, robin.murphy@arm.com, m.szyprowski@samsung.com
Cc: vdumpa@nvidia.com, linux@armlinux.org.uk,
	catalin.marinas@arm.com, will.deacon@arm.com, chris@zankel.net,
	jcmvbkbc@gmail.com, joro@8bytes.org, dwmw2@infradead.org,
	tony@atomide.com, akpm@linux-foundation.org,
	sfr@canb.auug.org.au, treding@nvidia.com, keescook@chromium.org,
	iamjoonsoo.kim@lge.com, wsa+renesas@sang-engineering.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-xtensa@linux-xtensa.org,
	iommu@lists.linux-foundation.org, dann.frazier@canonical.com
Subject: [PATCH v3 0/2] Optimize dma_*_from_contiguous calls
Date: Thu, 23 May 2019 21:06:31 -0700	[thread overview]
Message-ID: <20190524040633.16854-1-nicoleotsuka@gmail.com> (raw)

[ Per discussion at v1, we decide to add two new functions and start
  replacing callers one by one. For this series, it only touches the
  dma-direct part. And instead of merging two PATCHes, I still keep
  them separate so that we may easily revert PATCH-2 if anything bad
  happens as last time -- PATCH-1 is supposed to be a safe cleanup. ]

This series of patches try to optimize dma_*_from_contiguous calls:
PATCH-1 abstracts two new functions and applies to dma-direct.c file.
PATCH-2 saves single pages and reduce fragmentations from CMA area.

Please check their commit messages for detail changelog.

Nicolin Chen (2):
  dma-contiguous: Abstract dma_{alloc,free}_contiguous()
  dma-contiguous: Use fallback alloc_pages for single pages

 include/linux/dma-contiguous.h | 11 +++++++
 kernel/dma/contiguous.c        | 57 ++++++++++++++++++++++++++++++++++
 kernel/dma/direct.c            | 24 +++-----------
 3 files changed, 72 insertions(+), 20 deletions(-)

-- 
2.17.1


             reply	other threads:[~2019-05-24  4:08 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-24  4:06 Nicolin Chen [this message]
2019-05-24  4:06 ` [PATCH v3 1/2] dma-contiguous: Abstract dma_{alloc,free}_contiguous() Nicolin Chen
2019-05-29 18:35   ` Nathan Chancellor
2019-05-29 22:48     ` Nicolin Chen
2019-07-25 16:06   ` Ezequiel Garcia
2019-07-25 16:50     ` Nicolin Chen
2019-07-25 17:31       ` Dafna Hirschfeld
2019-07-25 23:42         ` Nicolin Chen
2019-05-24  4:06 ` [PATCH v3 2/2] dma-contiguous: Use fallback alloc_pages for single pages Nicolin Chen
2019-05-24 16:16   ` Ira Weiny
2019-05-27 10:55     ` Nicolin Chen
2019-05-24 20:03 ` [PATCH v3 0/2] Optimize dma_*_from_contiguous calls dann frazier
2019-05-28  6:04 ` Christoph Hellwig
2019-05-29 23:06   ` Nicolin Chen

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