Re: how to allocate 9MB of memory in kernel ?

[Misbah khan <misbah_khan@engineer.com>]

In have a sdram of size 9MB which i would map to kernel space (ioremap woul=
d
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=20



Sylvain Joyeau wrote:
>=20
> Misbah,
>=20
> 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).
>=20
> --
> sj
>=20
>=20
> 2008/7/17 Misbah khan <misbah_khan@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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>>
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>=20
>=20
>=20
> --=20
> ------------------
> Sylvain JOYEAU
> Freelance Engineer
> Software RT-OS R&D
> sylvain.joyeau@gmail.com
> T=C3=A9l: +33-(0)667 477 052
> "A good idea is one side of the coin. The other side is the practical
> usefulness". J. Liedke.
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>=20
>=20

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