From: Wolfram Sang <w.sang@pengutronix.de>
To: "Albrecht Dreß" <albrecht.dress@arcor.de>
Cc: Linux PPC Development <linuxppc-dev@ozlabs.org>
Subject: Re: [PATCH] powerpc: tiny memcpy_(to|from)io optimisation
Date: Thu, 11 Jun 2009 19:07:30 +0200 [thread overview]
Message-ID: <20090611170730.GC28028@pengutronix.de> (raw)
In-Reply-To: <1243454441.3489.1@antares>
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On Wed, May 27, 2009 at 10:00:41PM +0200, Albrecht Dreß wrote:
> This trivial patch changes memcpy_(to|from)io as to transfer as many
> 32-bit words as possible in 32-bit accesses (in the current solution,
> the last 32-bit word was transferred as 4 byte accesses).
>
> Signed-off-by: Albrecht Dreß <albrecht.dress@arcor.de>
Besides the discussion about optimizing the loop, what about the patch itself?
Looks plausible to me...
--
Pengutronix e.K. | Wolfram Sang |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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next prev parent reply other threads:[~2009-06-11 17:07 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-27 20:00 [PATCH] powerpc: tiny memcpy_(to|from)io optimisation Albrecht Dreß
2009-05-28 16:13 ` Joakim Tjernlund
2009-05-28 19:50 ` Albrecht Dreß
2009-05-29 6:31 ` Joakim Tjernlund
2009-05-31 10:11 ` Albrecht Dreß
2009-06-01 6:14 ` Joakim Tjernlund
2009-06-02 18:45 ` Albrecht Dreß
2009-06-02 22:51 ` Benjamin Herrenschmidt
2009-06-03 14:36 ` Kenneth Johansson
2009-06-03 18:35 ` Albrecht Dreß
2009-06-11 17:07 ` Wolfram Sang [this message]
2009-06-11 17:30 ` Grant Likely
2009-06-19 18:42 ` Lorenz Kolb
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