* How to allocate framebuffer bigger than 4MB
@ 2010-10-04 7:33 han jonghun
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From: han jonghun @ 2010-10-04 7:33 UTC (permalink / raw)
To: linux-fbdev
Hi,
I have a question how to allocate framebuffer bigger than 4MB.
I usually allocate framebuffer via dma_alloc_writecombine.
When I use dma_alloc_writecombine, I can allocate framebuffer less
than 4MB due to MAX_ORDER(11).
Before 2.6.36, I allocated framebuffer via bootmem and then I remaped
the fb via ioremap_wc for non-cacheable operation.
But from 2.6.36, I cannot use ioremap_wc for the memory which is
allocate by kernel.
How can I allocate framebuffer bigger than 4MB ?
Can anyone help me?
Thanks
Best regards,
Jonhun Han.
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