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Re: [PATCH 0/2] Follow-up on "ARM: Fix dma_alloc_coherent() and friends for NOMMU"

From Benjamin Gaignard <benjamin.gaignard@linaro.org>
Newsgroups linux.kernel
Subject Re: [PATCH 0/2] Follow-up on "ARM: Fix dma_alloc_coherent() and friends for NOMMU"
Date 2017-06-30 13:40 +0200
Message-ID <tY2rg-4Tg-1@gated-at.bofh.it> (permalink)
References <tXhiG-4WZ-15@gated-at.bofh.it>
Organization linux.* mail to news gateway

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2017-06-28 11:16 GMT+02:00 Vladimir Murzin <vladimir.murzin@arm.com>:
> These two patches are folloups on "[PATCH v6 0/7] ARM: Fix
> dma_alloc_coherent() and friends for NOMMU" which has been partly
> merged in [1]. PATCH 1/2 is done per Christoph's suggestion [2] to
> eliminate duplication in dma-noop.c.  PATCH 2/2 is fixup for ARM's dma
> operations for NOMMU due to aforementioned change.
>
> @Benjamin, your Tested-by for ARM bits would be very appretiated!

I have been able to test on stm32f4 with drm/kms drivers which is
calling dma_alloc_coherent
and modetest doing mmap and it is working fine.

tested-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>

>
> @Christoph, in case you decide to queue PATCH 1/2, can you put it
> before "ARM: NOMMU: Introduce dma operations for noMMU", so transition
> to the new dma operations won't break bisectability.
>
> [1] git://git.infradead.org/users/hch/dma-mapping.git for-next
> [2] https://www.spinics.net/lists/arm-kernel/msg590587.html
>
> Cc: Steven Miao <realmz6@gmail.com>
> Cc: Geert Uytterhoeven <geert@linux-m68k.org>
> Cc: Michal Simek <monstr@monstr.eu>
> Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
> Cc: Rich Felker <dalias@libc.org>
> Cc: Chris Zankel <chris@zankel.net>
> Cc: Max Filippov <jcmvbkbc@gmail.com>
>
> Thanks!
>
> Vladimir Murzin (2):
>   drivers: dma-mapping: allow dma_common_mmap() for NOMMU
>   fixup: ARM: NOMMU: Introduce dma operations for noMMU
>
>  arch/arm/mm/dma-mapping-nommu.c | 18 ------------------
>  arch/blackfin/Kconfig           |  1 +
>  arch/m32r/Kconfig               |  1 +
>  arch/m68k/Kconfig               |  1 +
>  arch/microblaze/Kconfig         |  1 +
>  arch/sh/Kconfig                 |  1 +
>  arch/xtensa/Kconfig             |  1 +
>  drivers/base/dma-mapping.c      |  4 ++--
>  8 files changed, 8 insertions(+), 20 deletions(-)
>
> --
> 2.0.0
>



-- 
Benjamin Gaignard

Graphic Study Group

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Thread

[PATCH 0/2] Follow-up on "ARM: Fix dma_alloc_coherent() and friends for NOMMU" Vladimir Murzin <vladimir.murzin@arm.com> - 2017-06-28 11:20 +0200
  Re: [PATCH 0/2] Follow-up on "ARM: Fix dma_alloc_coherent() and         friends for NOMMU" Christoph Hellwig <hch@lst.de> - 2017-06-28 16:00 +0200
    Re: [PATCH 0/2] Follow-up on "ARM: Fix dma_alloc_coherent() and  friends for NOMMU" Vladimir Murzin <vladimir.murzin@arm.com> - 2017-07-03 11:00 +0200
    Re: [PATCH 0/2] Follow-up on "ARM: Fix dma_alloc_coherent() and  friends for NOMMU" Vladimir Murzin <vladimir.murzin@arm.com> - 2017-07-03 11:00 +0200
  Re: [PATCH 0/2] Follow-up on "ARM: Fix dma_alloc_coherent() and  friends for NOMMU" Benjamin Gaignard <benjamin.gaignard@linaro.org> - 2017-06-30 13:40 +0200
    Re: [PATCH 0/2] Follow-up on "ARM: Fix dma_alloc_coherent() and  friends for NOMMU" Vladimir Murzin <vladimir.murzin@arm.com> - 2017-06-30 14:10 +0200

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