how to allocate 9MB of memory in kernel ?

[Misbah khan]

In have a sdram of size 9MB which i would map to kernel space (ioremap would
do that ) the whole 9 MB kernel virtual memory i need to map to the
application , the application would read when driver has complited writing
and vice versa this implimentation would be in a circular buffer type. The
size of my RAM is 128 MB 



Sylvain Joyeau wrote:
> 
> Misbah,
> 
> Please, give some more details about your application: the answer(s)
> heavily depends on the kind of memory you want to allocate: contiguous
> (implied in DMA purpose) or not (for process memory sharing only).
> 
> --
> sj
> 
> 
> 2008/7/17 Misbah khan <misbah_khan at engineer.com>:
>>
>> Hi all,
>>
>> I need to allocate 9 MB of memory in to the kernel space which i need to
>> mmap for the application to access.
>>
>> I need to know what could be the best possible way of doing the same.
>>
>> Please share your experience in this regard .
>>
>> Thank you in advance
>>
>> ----Misbah <><
>> --
>> View this message in context:
>> http://www.nabble.com/how-to-allocate-9MB-of-memory-in-kernel---tp18503022p18503022.html
>> Sent from the linuxppc-embedded mailing list archive at Nabble.com.
>>
>> _______________________________________________
>> Linuxppc-embedded mailing list
>> Linuxppc-embedded at ozlabs.org
>> https://ozlabs.org/mailman/listinfo/linuxppc-embedded
>>
> 
> 
> 
> -- 
> ------------------
> Sylvain JOYEAU
> Freelance Engineer
> Software RT-OS R&D
> sylvain.joyeau at gmail.com
> Tél: +33-(0)667 477 052
> "A good idea is one side of the coin. The other side is the practical
> usefulness". J. Liedke.
> _______________________________________________
> Linuxppc-embedded mailing list
> Linuxppc-embedded at ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-embedded
> 
> 

-- 
View this message in context: http://www.nabble.com/how-to-allocate-9MB-of-memory-in-kernel---tp18503022p18504063.html
Sent from the linuxppc-embedded mailing list archive at Nabble.com.