how to allocate 9MB of memory in kernel ?
misbah_khan at engineer.com
Thu Jul 17 18:41:03 EST 2008
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:
> 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).
> 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 <><
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> Sylvain JOYEAU
> Freelance Engineer
> Software RT-OS R&D
> sylvain.joyeau at gmail.com
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> "A good idea is one side of the coin. The other side is the practical
> usefulness". J. Liedke.
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