On 05/14/2012 09:45 AM, Leopold Palomo-Avellaneda wrote:
Hi,
sorry if the question it's obvious but I have not understood the information
that I have found. I have read the roadmap of Xenomai [1] and it's not clear
to me what should I have to do if I would want to use xenomai in a kernel
3.x.
As far as I understand the idea it's to go to Xenomai 3 with the prempt patch
or a co-kernel option. Then xenomai will be the interface to the realtime
kernel. From the user point of view, no matter if xenomai will use the rt-
preemt or the co-kernel option. Also, the driver option will be the rtdm.
But I don't understand if the Adeos patch will survive (at least in x86) or
what will happen. I understand that the co-kernel option is the same that we
have now (2.6) with the adeos patch, but I have not be able to find an Adeos
patch for a x86 platform in a 3.x kernel.
The interrupt pipeline will be maintained for running the co-kernel
incarnation of Xenomai 3, and for updating the 2.6.x maintenance branch
as well. To run 3.2 kernels and above, using Xenomai 2.6.1 or later will
be a requirement.
There is an upcoming patch for linux 3.2, which is the first of the new
pipeline "core" series, a massive refactoring of the I-pipe
implementation and API, aimed at a better integration with Xenomai:
http://git.denx.de/?p=ipipe-2.6.git;a=shortlog;h=refs/heads/core-3.2
It currently supports powerpc, arm, x86 and blackfin, and can be used
with Xenomai 2.6.1+ and Xenomai 3 systems in dual kernel mode. I will
roll this patch out officially when Gilles and I are done with fixing
the rough edges. The plan is to have it shipped with the upcoming 2.6.1.
To sum up: the interrupt pipeline for x86 is maintained, a release for
3.x kernels is upcoming.
Please, someone could clarify this.
Thanks in advance,
Leo
[1] http://www.xenomai.org/index.php/Xenomai:Roadmap
--
Philippe.
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