Re: [Xenomai-core] Xenomai port to MIPS

2006-09-05 Thread Miguel Angel Alvarez

somshekar kadam wrote:
Hi All, 


After a good study with help of mailing list, we fix
on porting Xenomai to our ustom board running with
Mips4k .
what I understand is we have Adeos with Xenomai, and
realtime capability of Xenomai. 


our ultimate goal is realtime. To Begin with port of
Xenomai I would like to know , in case is there a
porting doc or some pointer which help to understand
Xenomai better and quick, to go ahead.
Please comment on this. 


Thanks In Advance
Neelu 





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I am also very intrerested in this kind of porting guidance, because I 
have to evaluate the difficulties in porting Xenomai (and Adeos) into 
Coldfire v4 (m68k) architecture.


Thanks

Miguel Ángel 


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Re: [Xenomai-core] Xenomai port to MIPS

2006-09-05 Thread Jan Kiszka
somshekar kadam wrote:
 Hi All, 
 
 After a good study with help of mailing list, we fix
 on porting Xenomai to our ustom board running with
 Mips4k .

Nice to hear. :)

 what I understand is we have Adeos with Xenomai, and
 realtime capability of Xenomai. 

Yep.

 
 our ultimate goal is realtime. To Begin with port of
 Xenomai I would like to know , in case is there a
 porting doc or some pointer which help to understand
 Xenomai better and quick, to go ahead.
 Please comment on this. 

Your first step still remains the fairly independent port of Adeos/Ipipe
over MIPS. Philippe already pointed out the available resources. Start
over a recent vanilla kernel (or do you need special patches for your
targets?), make Linux boot with Ipipe enabled, then stress the event
pipeline with a simple Ipipe test module.

Once this works you can proceed to Xenomai, porting over what's under
ksrc/arch/arch and include/asm-arch. Not all internal functions may
be documented. Try to grab their meaning from other archs and/or their
usage - or ask on this list.

Another hint: post your patches early even if they do not work yet. We
may have a look and comment on style and functionality. This will make
it easier to finally merge them (which should be your goal to ease
long-term maintenance). And it may attract early adopters that can
provide further feedback and test results.

Jan



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Re: [Xenomai-core] Xenomai port to MIPS

2006-09-05 Thread somshekar kadam

Hi Jan, 

 To begin with porting I need some help you people, 
I dont see an announcement of Xenomai start, who are
the Authors and maintainers of this I know were very
well its you and Philipe Gerum and others also whom i
dont know. As I need to put all this in a document ,
can help me on this.
Thanks In Advance 
Neelu my nick name 

--- Jan Kiszka [EMAIL PROTECTED] wrote:

 somshekar kadam wrote:
  Hi All, 
  
  After a good study with help of mailing list, we
 fix
  on porting Xenomai to our ustom board running with
  Mips4k .
 
 Nice to hear. :)
 
  what I understand is we have Adeos with Xenomai,
 and
  realtime capability of Xenomai. 
 
 Yep.
 
  
  our ultimate goal is realtime. To Begin with port
 of
  Xenomai I would like to know , in case is there a
  porting doc or some pointer which help to
 understand
  Xenomai better and quick, to go ahead.
  Please comment on this. 
 
 Your first step still remains the fairly independent
 port of Adeos/Ipipe
 over MIPS. Philippe already pointed out the
 available resources. Start
 over a recent vanilla kernel (or do you need special
 patches for your
 targets?), make Linux boot with Ipipe enabled, then
 stress the event
 pipeline with a simple Ipipe test module.
 
 Once this works you can proceed to Xenomai, porting
 over what's under
 ksrc/arch/arch and include/asm-arch. Not all
 internal functions may
 be documented. Try to grab their meaning from other
 archs and/or their
 usage - or ask on this list.
 
 Another hint: post your patches early even if they
 do not work yet. We
 may have a look and comment on style and
 functionality. This will make
 it easier to finally merge them (which should be
 your goal to ease
 long-term maintenance). And it may attract early
 adopters that can
 provide further feedback and test results.
 
 Jan
 
 




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Re: [Xenomai-core] Xenomai port to MIPS

2006-09-05 Thread Jan Kiszka
Miguel Angel Alvarez wrote:
 I am also very intrerested in this kind of porting guidance, because I
 have to evaluate the difficulties in porting Xenomai (and Adeos) into
 Coldfire v4 (m68k) architecture.

See this posting for the Adeos part:

https://mail.gna.org/public/adeos-main/2006-09/msg1.html

Regarding the porting effort of Xenomai: I would recommend to browse
through existing architectures, e.g. Blackfin, in order to asses the
amount and complexity of services you have to deal with.

Jan



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Re: [Xenomai-core] Xenomai port to MIPS

2006-09-05 Thread Jan Kiszka
somshekar kadam wrote:
 Hi Jan, 
 
  To begin with porting I need some help you people, 
 I dont see an announcement of Xenomai start, who are
 the Authors and maintainers of this I know were very
 well its you and Philipe Gerum and others also whom i
 dont know. As I need to put all this in a document ,
 can help me on this.

Mmh, I'm not yet sure I understood completely what you are looking for,
but if its the start of Xenomai 2 + its history, this may help:

https://mail.gna.org/public/rtai-dev/2005-10/msg2.html

More contributors can be found in the CREDITS file, including those who
work on important parts that don't show up in the ChangeLog.

A comprehensive roadmap document is in the making, but we cannot provide
a concrete release date yet.

Jan



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