Messages in this thread | | | From | dann frazier <> | Date | Fri, 24 May 2019 14:03:25 -0600 | Subject | Re: [PATCH v3 0/2] Optimize dma_*_from_contiguous calls |
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On Thu, May 23, 2019 at 10:08 PM Nicolin Chen <nicoleotsuka@gmail.com> wrote: > > [ 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(-)
Thanks Nicolin. Tested on a HiSilicon D06 system.
Tested-by: dann frazier <dann.frazier@canonical.com>
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