Size of dma_alloc_writecombine.

[vipul samar]

Hello,

I am working on LCD module of resolution size 1024X768. When i am allocating
memory for frame buffer using dma_alloc_writecombine call its not able to
allocate memory more then 2MB memory. The Reason is the maximum size
allocated by  dma_alloc_writecombine is 2 MB.
Can i make changes in arm files and extend maximum size to 4MB?? or should i
go for other options??

Please suggest me the best way to allocate memory more then 2MB.

Regards
Vipul Samar
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