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
next prev parent 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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