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From: Jeff Weber <jweber@domain.hid>
To: Jan Kiszka <jan.kiszka@domain.hid>
Cc: Xenomai Help <xenomai@xenomai.org>
Subject: Re: [Xenomai-help] enable/disable all interrupts from user space
Date: Fri, 27 Oct 2006 11:08:14 -0500	[thread overview]
Message-ID: <200610271108.14937.jweber@domain.hid> (raw)
In-Reply-To: <45420A72.8000700@domain.hid>

Thanks Jan.

Another thought: is there a direct Adeos  call to enable/disable all 
interrupts, with nesting from user space?

I'm porting some legacy RTAI code to the Xenomai native skin.  The RTAI code 
has rtai_save_flags_and_cli()/rtai_restore_flags() for enabling/disabling all 
interrupts  direct from user space, with capability to handle nested calls.  

Yes, please add this to the native skin "wish list", along with a nesting 
capability.

        thanks,
        Jeff

On Friday 27 October 2006 08:32, Jan Kiszka wrote:
> Jeff Weber wrote:
> > How do I enable/disable all interrupts (Linux and Xenomai) from user
>
> space?
>
> > (native skin preferred)
>
> For x86:
>
> iopl(3);
> __asm__ __volatile__("cli/sti");
>
> Ugly hack, typical a sign that something should be moved somewhere
> else... (there are a few exceptions, though)

-- 
Jeff Weber
American Superconductor Corp.


  reply	other threads:[~2006-10-27 16:08 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-10-26 21:39 [Xenomai-help] enable/disable all interrupts from user space Jeff Weber
2006-10-27 13:32 ` Jan Kiszka
2006-10-27 16:08   ` Jeff Weber [this message]
2006-10-27 16:24     ` Jan Kiszka
2006-10-27 21:11   ` Philippe Gerum
2006-10-27 21:31     ` Jan Kiszka
2006-10-27 22:03       ` Philippe Gerum

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