From: Jan Kiszka <jan.kiszka@domain.hid>
To: Asier Tamayo <asier.tamayo@domain.hid>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-help] FW: rtdm_iomap_to_user() I-pipe error
Date: Thu, 14 Apr 2011 09:34:05 +0200 [thread overview]
Message-ID: <4DA6A36D.6070908@domain.hid> (raw)
In-Reply-To: <DFFBF4EB468A894AB1474ED220F05AF60134C17D@srv-dc.ona-electroerosion.com>
On 2011-04-14 08:14, Asier Tamayo wrote:
>
> Hello,
>
> I'm porting a PCI driver to a RTDM. Until now, I have successfully done most of the job.
>
> I'm using Xenomai version 2.4.7 and Linux 2.6.27, from the ELinOS 5.0 distribution.
>
> My problem appears with the rtdm_iomap_to_user() function. I want to allow a RT task to access the PCI memory directly, via mmap. As the RTDM has no mmap() function, I'm trying to use rtdm_iomap_to_user, but it always gives me the following error:
>
> I-pipe: Detected illicit call from domain 'Xenomai'
> into a service reserved for domain 'Linux' and below.
This is also documented: rtdm_iomap_to_user is not supposed to be called
from RT task context. This means your driver should only call it from
handlers registered for *_nrt entry points.
Jan
--
Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux
next prev parent reply other threads:[~2011-04-14 7:34 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-14 6:14 [Xenomai-help] FW: rtdm_iomap_to_user() I-pipe error Asier Tamayo
2011-04-14 7:34 ` Jan Kiszka [this message]
2011-04-14 9:38 ` Asier Tamayo
2011-04-26 10:05 ` Asier Tamayo
2011-04-26 11:15 ` Gilles Chanteperdrix
2011-04-27 7:05 ` Asier Tamayo
2011-04-27 7:42 ` Gilles Chanteperdrix
2011-04-27 17:36 ` Gilles Chanteperdrix
2011-04-28 8:54 ` Asier Tamayo
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