From: Scott Wood <scottwood@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] arm: Kirkwood: Add memory barriers to kwgbe_send/recv
Date: Wed, 01 Jul 2009 12:14:19 -0500 [thread overview]
Message-ID: <4A4B996B.7030803@freescale.com> (raw)
In-Reply-To: <200907011909.21754.sr@denx.de>
Stefan Roese wrote:
> I know that we advertised the usage of the io accessor functions for quite
> some time now. But I'm not so sure here anymore. One disadvantage of this
> usage could be speed penalty by the usage of too many unnecessary barriers
> (included via the accessor functions on some platforms).
Hot paths (or tiny bootstraps) can be optimized if needed, but why
invite screwups for the majority of code?
-Scott
next prev parent reply other threads:[~2009-07-01 17:14 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-01 15:16 [U-Boot] [PATCH] arm: Kirkwood: Add memory barriers to kwgbe_send/recv Simon Kagstrom
2009-07-01 16:56 ` Detlev Zundel
2009-07-01 17:09 ` Stefan Roese
2009-07-01 17:14 ` Scott Wood [this message]
2009-07-03 9:15 ` Detlev Zundel
2009-07-01 16:57 ` Prafulla Wadaskar
2009-07-02 6:47 ` Simon Kagstrom
2009-07-02 8:12 ` Prafulla Wadaskar
2009-07-03 8:57 ` Detlev Zundel
2009-07-04 23:52 ` Wolfgang Denk
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