Re: [PATCH] pci: print out DMA mask info

From: Jesse Barnes
Date: Fri Oct 10 2008 - 12:29:24 EST


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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/