Re: DMA memory limitation?

From: Arjan van de Ven (
Date: Thu Jul 05 2001 - 06:54:50 EST

Vasu Varma P V wrote:
> Hi,
> Is there any limitation on DMA memory we can allocate using
> kmalloc(size, GFP_DMA)? I am not able to acquire more than
> 14MB of the mem using this on my PCI SMP box with 256MB ram.
> I think there is restriction on ISA boards of 16MB.
> Can we increase it ?

YOu don't have to allocate GFP_DMA memory for PCI cards!
GFP_DMA is for ISA cards only
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