Re: dynamic BAR

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, Jun 24, 2011 at 03:02:00PM -0600, Matthew Wilcox wrote:
> On Fri, Jun 24, 2011 at 03:49:04PM -0500, Xianghua Xiao wrote:
> > can you explain a little more on this, the 256MB is aligned of course,
> > why does the modifiable BAR needs an unaligned pci mem space?
> 
> The device will claim any read from the base address to the base address
> + 512MB.  If you have another device also claiming some of that space,
> undefined things will happen.
> 
> Unless you've got the Resizable BAR Capability or some other way to tell
> the device to resize its BAR ...

By the way, why are you asking again?  Wasn't the "No" you got on April
28th sufficient?

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
--
To unsubscribe from this list: send the line "unsubscribe linux-pci" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [DMA Engine]     [Linux Coverity]     [Linux USB]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Greybus]

  Powered by Linux