DMA memory limitation?

From: Vasu Varma P V (pvvvarma@techmas.hcltech.com)
Date: Thu Jul 05 2001 - 06:47:50 EST


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 ?

thx,
Vasu

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