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From: Michal Simek <monstr@monstr.eu>
To: Eli Billauer <eli.billauer@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/3] microblaze: Refinements on cache flushes and invalidations (dma.c)
Date: Tue, 13 Sep 2011 13:31:43 +0200	[thread overview]
Message-ID: <4E6F3F1F.8030300@monstr.eu> (raw)
In-Reply-To: <1315770188-17550-3-git-send-email-eli.billauer@gmail.com>

Eli Billauer wrote:
> Mapping and unmapping methods' cache syncronization calls were refined to
> avoid unnecessary synchronizations of the cache. Flushing of the cache is
> now made even when mapping memory as DMA_FROM_DEVICE, so that a possible
> dirty cache lines don't get flushed later, and overwrite data written by
> device.
> 
> Signed-off-by: Eli Billauer <eli.billauer@gmail.com>
> ---
>  arch/microblaze/kernel/dma.c |   36 ++++++++++++++++++++++++++++--------
>  1 files changed, 28 insertions(+), 8 deletions(-)

Keep it in my branch for testing.

Thanks,
Michal

-- 
Michal Simek, Ing. (M.Eng)
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel 2.6 Microblaze Linux - http://www.monstr.eu/fdt/
Microblaze U-BOOT custodian

  reply	other threads:[~2011-09-13 11:31 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-11 19:43 [PATCH 1/3] microblaze: Moved __dma_sync() to dma-mapping.h Eli Billauer
2011-09-11 19:43 ` [PATCH 2/3] microblaze: Added DMA sync operations Eli Billauer
2011-09-13 11:26   ` Michal Simek
2011-09-11 19:43 ` [PATCH 3/3] microblaze: Refinements on cache flushes and invalidations (dma.c) Eli Billauer
2011-09-13 11:31   ` Michal Simek [this message]
2011-09-13 11:26 ` [PATCH 1/3] microblaze: Moved __dma_sync() to dma-mapping.h Michal Simek

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