Hello,
On Thu, 3 Jan 2002, Alan Cox wrote:
> > This tells the aic7xxx to use DMA safe memory for I/O.
>
> That seems totally inappropriate. The unchecked dma option is for
> ancient ISA DMA controllers that didnt do the 16Mb check.
>
Maybe this is more appropriate then :)
It tells the scsi scanner to always use DMA safe memory when doing its
INQUIRY commands...
On the O2, kernel is running in cacheable, non-coherent memory. kmalloc,
with GFP_DMA flag will return a piece of uncacheable memory which is safe
for I/O with devices.
regards,
Vivien Chappelier
linux-scsi_scan.diff
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