From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Sebastian Smolorz <ssm@domain.hid>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-core] I-pipe patch for ARM S3C24xx
Date: Fri, 27 Oct 2006 16:24:59 +0200 [thread overview]
Message-ID: <454216BB.4090507@domain.hid> (raw)
In-Reply-To: <E1GdSZr-0001Pg-BV@mailer.emlix.com>
Sebastian Smolorz wrote:
> Hi,
>
> here comes version 2 of the I-pipe patch for the S3C24xx ARM. The reported
> problem is solved, the timer works as expected as far as I can see. Linux is
> still there after insmod'ding the native skin. More test results will follow
> next week after I tortured the new patch with the whole testsuite
> arsenal. ;-)
>
> The patch has got two suboptimal characteristics due to the generic ARM I-pipe
> implementation which I did not want to change during the first steps:
>
> 1. Regarding the demux of chained IRQs (See [1]). As the S3C24xx has more than
> one chained IRQ there are two consecutive queries for them in
> __ipipe_mach_irq_mux_p() and __ipipe_mach_demux_irq(). This could be
> optimized.
You should use switch/case instead of if else if else if, the generated
code would be better optimized.
--
Gilles Chanteperdrix
next prev parent reply other threads:[~2006-10-27 14:24 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-20 8:45 [Xenomai-core] I-pipe patch for ARM S3C24xx Sebastian Smolorz
2006-10-24 10:49 ` Sebastian Smolorz
2006-10-25 13:41 ` [Xenomai-help] " Schlägl Manfred jun.
2006-10-25 14:32 ` Sebastian Smolorz
2006-10-27 14:20 ` Sebastian Smolorz
2006-10-27 14:24 ` Gilles Chanteperdrix [this message]
2006-10-27 15:49 ` Gilles Chanteperdrix
2006-10-30 9:13 ` Sebastian Smolorz
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