[PATCH] fsldma: use PCI Read Multiple command
DaveLiu at freescale.com
Tue Apr 28 07:59:41 EST 2009
>> You are assuming the PCI memory space is prefetchable( no side effect)
>> for DMA.
>> Is it possible that DMA is from non-prefetchable memory space?
> This should be a safe assumption for this driver. Remember, this
> driver just does offload memcpy, from one region to another. So the
> PCI memory that you are reading from should be just a buffer of data,
> and there should be side-effect of reading it.
How about one FIFO buffer?
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