linux-kernel - Re: [PATCH v2] dw_dmac: allocate dma descriptors from DMA

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20130121045030.GC21551@intel.com>
Date:	Sun, 20 Jan 2013 20:50:30 -0800
From:	Vinod Koul <vinod.koul@...el.com>
To:	Andy Shevchenko <andriy.shevchenko@...ux.jf.intel.com>
Cc:	Viresh Kumar <viresh.linux@...il.com>,
	linux-kernel@...r.kernel.org, spear-devel <spear-devel@...t.st.com>
Subject: Re: [PATCH v2] dw_dmac: allocate dma descriptors from DMA_COHERENT
 memory

On Wed, Jan 16, 2013 at 03:48:50PM +0200, Andy Shevchenko wrote:
> Currently descriptors are allocated from normal cacheable memory and that slows
> down filling the descriptors, as we need to call cache_coherency routines
> afterwards. It would be better to allocate memory for these descriptors from
> DMA_COHERENT memory. This would make code much cleaner too.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> Tested-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
> Acked-by: Viresh Kumar <viresh.kumar@...aro.org>
Applied Thanks

--
~Vinod
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/