From: Nicolin Chen <nicoleotsuka@gmail.com>
To: hch@lst.de, robin.murphy@arm.com, m.szyprowski@samsung.com
Cc: chris@zankel.net, linux-xtensa@linux-xtensa.org,
keescook@chromium.org, sfr@canb.auug.org.au, tony@atomide.com,
catalin.marinas@arm.com, joro@8bytes.org, will.deacon@arm.com,
linux@armlinux.org.uk, iommu@lists.linux-foundation.org,
linux-kernel@vger.kernel.org, jcmvbkbc@gmail.com,
wsa+renesas@sang-engineering.com, akpm@linux-foundation.org,
treding@nvidia.com, dwmw2@infradead.org, iamjoonsoo.kim@lge.com,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 0/2] Optimize dma_*_from_contiguous calls
Date: Mon, 6 May 2019 15:33:32 -0700 [thread overview]
Message-ID: <20190506223334.1834-1-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 | 10 ++++++
kernel/dma/contiguous.c | 57 ++++++++++++++++++++++++++++++++++
kernel/dma/direct.c | 24 +++-----------
3 files changed, 71 insertions(+), 20 deletions(-)
--
2.17.1
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next reply other threads:[~2019-05-06 22:35 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-06 22:33 Nicolin Chen [this message]
2019-05-06 22:33 ` [PATCH v2 1/2] dma-contiguous: Abstract dma_{alloc, free}_contiguous() Nicolin Chen
2019-05-24 1:52 ` dann frazier
2019-05-24 2:59 ` dann frazier
2019-05-24 3:49 ` Nicolin Chen
2019-05-06 22:33 ` [PATCH v2 2/2] dma-contiguous: Use fallback alloc_pages for single pages Nicolin Chen
2019-08-23 12:49 ` Masahiro Yamada
2019-08-23 12:56 ` Masahiro Yamada
2019-08-25 1:10 ` Christoph Hellwig
2019-08-26 2:05 ` Masahiro Yamada
2019-08-26 7:33 ` Christoph Hellwig
2019-08-27 7:45 ` Masahiro Yamada
2019-08-27 7:50 ` Christoph Hellwig
2019-08-27 9:03 ` Masahiro Yamada
2019-08-27 11:55 ` Christoph Hellwig
2019-08-28 10:53 ` Masahiro Yamada
2019-08-28 12:23 ` Masahiro Yamada
2019-08-29 11:45 ` Masahiro Yamada
2019-08-23 22:11 ` Nicolin Chen
2019-08-26 1:56 ` Masahiro Yamada
2019-05-08 12:52 ` [PATCH v2 0/2] Optimize dma_*_from_contiguous calls Christoph Hellwig
2019-05-08 18:08 ` Nicolin Chen
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