linux-kernel - Re: [PATCH 3/3] microblaze: Refinements on cache flushes and invalidations (dma.c)

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Date:	Tue, 13 Sep 2011 13:31:43 +0200
From:	Michal Simek <monstr@...str.eu>
To:	Eli Billauer <eli.billauer@...il.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] microblaze: Refinements on cache flushes and invalidations
 (dma.c)

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@...il.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
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