From: Mike Frysinger <vapier@gentoo.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] arm: add 64-64 bit divider
Date: Wed, 31 Aug 2011 11:27:46 -0400 [thread overview]
Message-ID: <201108311127.47392.vapier@gentoo.org> (raw)
In-Reply-To: <201108311711.00249.marek.vasut@gmail.com>
On Wednesday, August 31, 2011 11:11:00 Marek Vasut wrote:
> On Wednesday, August 31, 2011 04:32:52 PM Mike Frysinger wrote:
> > On Wednesday, August 31, 2011 06:38:50 Che-Liang Chiou wrote:
> > > This patch adds a 64-64 bit divider that supports ARMv4 and above.
> >
> > why ? if you're doing 64 bit divides, chances are you're doing something
> > fundamentally wrong. perhaps you should fix that instead.
>
> Oh come on Mike, what about too big NAND memories ?
Linux hasnt had a problem supporting large NAND without a 64bit divide
routine. why are we special ?
> > this is also why we have the do_div() helper macro.
> >
> > so until your changelog documents the actual *reason* for this patch: NAK
>
> The reason is likely it's faster.
let's see actual #'s
-mike
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next prev parent reply other threads:[~2011-08-31 15:27 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-31 10:38 [U-Boot] [PATCH] arm: add 64-64 bit divider Che-Liang Chiou
2011-08-31 11:56 ` Marek Vasut
2011-08-31 14:32 ` Mike Frysinger
2011-08-31 15:11 ` Marek Vasut
2011-08-31 15:27 ` Mike Frysinger [this message]
2011-08-31 15:33 ` Marek Vasut
2011-08-31 16:05 ` Mike Frysinger
2011-08-31 16:30 ` Marek Vasut
2011-08-31 17:13 ` Mike Frysinger
2011-08-31 20:03 ` Wolfgang Denk
2011-09-01 10:09 ` Che-liang Chiou
2011-09-01 10:16 ` Marek Vasut
2011-09-01 10:30 ` Che-liang Chiou
2011-09-01 10:42 ` Marek Vasut
2011-09-01 12:06 ` Che-liang Chiou
2011-09-01 13:07 ` Wolfgang Denk
2011-09-02 3:12 ` Che-liang Chiou
2011-09-07 21:14 ` Wolfgang Denk
2011-09-20 10:45 ` Graeme Russ
2011-09-20 11:28 ` Wolfgang Denk
2011-09-20 11:40 ` Graeme Russ
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