Re: Representing Embedded Architectures at the Kernel Summit

2009-06-19 Thread Kumar Gala


On Jun 18, 2009, at 10:00 PM, Paul Mundt wrote:


On Thu, Jun 18, 2009 at 09:59:20PM -0500, Kumar Gala wrote:


On Jun 17, 2009, at 9:51 PM, Paul Mundt wrote:


On Wed, Jun 17, 2009 at 09:31:48AM -0500, Kumar Gala wrote:

One topic that was partially touched on was dealing with various
memories on embedded systems.  We have several sram based  
allocators

in the kernel for various different arch's:

- Blackfin sram allocator arch/blackfin/mm/sram-alloc.c
- Lite5200(b) sram allocator arch/powerpc/sysdev/bestcomm/sram.c
- AVR32 sram allocator arch/avr32/mach-at32ap/at32ap700x.c and  
arch/

avr32/mach-at32ap/include/mach/sram.h
- Potential davinci sram allocator

There maybe others.


SH does this through NUMA on SRAM blocks that are anywhere from
128kB to
64MB. Some of our SMP configurations have upwards of a dozen of  
these

blocks.


Do you really have that much on chip memory?


Is this really a serious question? If we didn't, I would not have
mentioned it.


It was.  I'm not familiar with SH hardware so wasn't sure if there was  
some other application you had for the multiple regions.


- k
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Re: Representing Embedded Architectures at the Kernel Summit

2009-06-18 Thread Kumar Gala


On Jun 17, 2009, at 9:51 PM, Paul Mundt wrote:


On Wed, Jun 17, 2009 at 09:31:48AM -0500, Kumar Gala wrote:

One topic that was partially touched on was dealing with various
memories on embedded systems.  We have several sram based allocators
in the kernel for various different arch's:

- Blackfin sram allocator arch/blackfin/mm/sram-alloc.c
- Lite5200(b) sram allocator arch/powerpc/sysdev/bestcomm/sram.c
- AVR32 sram allocator arch/avr32/mach-at32ap/at32ap700x.c and arch/
avr32/mach-at32ap/include/mach/sram.h
- Potential davinci sram allocator

There maybe others.

SH does this through NUMA on SRAM blocks that are anywhere from  
128kB to

64MB. Some of our SMP configurations have upwards of a dozen of these
blocks.


Do you really have that much on chip memory?

- k

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Re: Representing Embedded Architectures at the Kernel Summit

2009-06-17 Thread Kumar Gala
One topic that was partially touched on was dealing with various  
memories on embedded systems.  We have several sram based allocators  
in the kernel for various different arch's:


- Blackfin sram allocator arch/blackfin/mm/sram-alloc.c
- Lite5200(b) sram allocator arch/powerpc/sysdev/bestcomm/sram.c
- AVR32 sram allocator arch/avr32/mach-at32ap/at32ap700x.c and arch/ 
avr32/mach-at32ap/include/mach/sram.h

- Potential davinci sram allocator

There maybe others.

- k
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Re: Representing Embedded Architectures at the Kernel Summit

2009-06-10 Thread Kumar Gala


On Jun 2, 2009, at 5:21 PM, Jean-Christophe PLAGNIOL-VILLARD wrote:


I'd like to propose AMP and kernel relocate
as more and SoC will came with multiple core with or without the  
same arch


I think AMP or at least the idea of the kernel communicating with  
other OSes on the same SoC in multi-core systems is interesting.


- k
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Re: Merge linuxppc-embedded with linuxppc-dev

2008-09-22 Thread Kumar Gala


On Sep 22, 2008, at 6:09 PM, Jeremy Kerr wrote:


Hi Grant,


Can we eliminate the linuxppc-embedded mailing list and merge it with
linuxppc-dev?


That's not really up to me - more of a community question I think. I
imagine Paul would have the final decision though.


I'm pretty sure I saw paul gripe about this on irc just the other day.

My vote is to kill linuxppc-embedded.

- k
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Re: Marvel 88E6063-RCJ1 driver

2008-09-17 Thread Kumar Gala
One place to look is the WRT projects.. Some of them have drivers for  
various switches.


- k

On Sep 16, 2008, at 11:33 PM, [EMAIL PROTECTED] 
 [EMAIL PROTECTED] wrote:



Hi,

I'm not sure, if my posting goes to the right list, but before I'll  
start
hacking away, I would like to ask if someone already has a driver  
for a
Marvel Linkstreet 88E6063 Integrated 7-Port QoS, 802.1Q 10/100  
Ethernet
Switch for a 2.6 kernel handy or can point me to where this can be  
found.


Regards,

Robert

--
Robert Berger
Embedded Software Specialist

Reliable Embedded Systems
Consulting Training Engineering
Tel.: (+30) 697 593 3428
Fax.:(+30 210) 684 7881
URL: http://www.reliableembeddedsystems.com
--
...One test is worth a thousand opinions.-Jack Ganssle


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Re: Big include file move breaks user mode

2008-08-06 Thread Kumar Gala


On Aug 6, 2008, at 12:44 PM, René Rebe wrote:



Heh, you might also consider using off the shelf build systems, such
as the T2 SDE:

http://t2-project.org

To avoid re-inventing the wheel again and again.

Yours,



Whee.. another rootfs build system.  Why we can't converge some of  
these towards so we have a larger community is beyond me.


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Re: linux kernel under psim

2008-08-05 Thread Kumar Gala


On Aug 5, 2008, at 7:58 AM, Mihaela Grigore wrote:


Hello,

Has anyone tried or knows if it is possible to run a 2.6 linux kernel
under psim?


not sure about psim but lots of people do it under qemu.

- k
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