Re: Representing Embedded Architectures at the Kernel Summit

[Kumar Gala <galak@kernel.crashing.org>]

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