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

From	Vladimir Murzin <vladimir.murzin@arm.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH 0/2] Follow-up on "ARM: Fix dma_alloc_coherent() and friends for NOMMU"
Date	2017-06-30 14:10 +0200
Message-ID	<tY2Uh-5iT-11@gated-at.bofh.it> (permalink)
References	<tXhiG-4WZ-15@gated-at.bofh.it> <tY2rg-4Tg-1@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 30/06/17 12:36, Benjamin Gaignard wrote:
> 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>
> 

Great thanks!

Vladimir

>>
>> @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
>>
> 
> 
>

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[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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