how to allocate 9MB of memory in kernel ?

[Siva Prasad]

Misbah,

May be I am missing some thing. I am sure you looked at the obvious.

Is there any reason why you are not using blocked read in application
pthread (a separate thread if necessary), so that driver provides that
value back to the application. Isn't that the right way to implement?

- Siva

Misbah khan <misbah_khan at engineer.com> wrote:

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