Messages in this thread | | | From | Jesse Barnes <> | Subject | Re: [PATCH] pci: print out DMA mask info | Date | Fri, 10 Oct 2008 09:28:40 -0700 |
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On Friday, October 10, 2008 9:19 am Yinghai Lu wrote: > another command line parameter for debug?
Sure, why not? :)
> anyway looking at dma_mask print out is interesting..., some uses 39, > and some use 44bits...
Yeah, many devices have limitations that prevent them from doing full 64 or 32 bit address cycles, so you'll see all sorts of values.
-- Jesse Barnes, Intel Open Source Technology Center
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