From: Philippe Gerum <rpm@xenomai.org>
To: Josh Zhao <joshsystem@domain.hid>
Cc: adeos-main@gna.org
Subject: Re: [Adeos-main] When do I need to add local_irq_disable_hw/local_irq_enable_hw in root domain?
Date: Tue, 01 Apr 2008 14:45:42 +0200 [thread overview]
Message-ID: <47F22E76.5020009@domain.hid> (raw)
In-Reply-To: <a7575bba0804010328v43bbc606oe1d0a26f7ea12be8@domain.hid>
Josh Zhao wrote:
> Hi ,
> When do I need to add local_irq_disable_hw/local_irq_enable_hw in
> root domain? I think every irq/event should not be disabled in root
> domain,but why i have seen in some code ?
Because some serialization still needs to be enforced, even for the root domain,
particularly for code that may have an impact on the pipeline state.
> thanks!
>
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Adeos-main mailing list
> Adeos-main@domain.hid
> https://mail.gna.org/listinfo/adeos-main
--
Philippe.
next prev parent reply other threads:[~2008-04-01 12:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-01 10:28 [Adeos-main] When do I need to add local_irq_disable_hw/local_irq_enable_hw in root domain? Josh Zhao
2008-04-01 12:45 ` Philippe Gerum [this message]
2008-04-08 6:45 ` Josh Zhao
2008-04-08 7:00 ` Gilles Chanteperdrix
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