svn commit: r297717 - head/sys/mips/mediatek

[John Baldwin]

On Friday, April 08, 2016 03:26:49 PM Stanislav Galabov wrote:
> Author: sgalabov
> Date: Fri Apr  8 15:26:49 2016
> New Revision: 297717
> URL: https://svnweb.freebsd.org/changeset/base/297717
> 
> Log:
>   Introduce Mediatek/Ralink PCIe support
>   
>   This revision introduces PCIe support for the relevant Mediatek/Ralink
>   SoCs.
>   Currently the PCIe support is not converted to INTRNG, this may be a
>   task for the future.
>   
>   Approved by:	adrian (mentor)
>   Sponsored by:	Smartcom - Bulgaria AD
>   Differential Revision:	https://reviews.freebsd.org/D5886

I would _really_ like to get away from having N different Foo-PCI bridge
drivers that all do an initial walk of the PCI hierarchy configuring
BARs and PCI-PCI bridge I/O windows.  With NEW_PCIB, the PCI-PCI bridge
driver is capable of figuring out windows on its own, and the PCI bus is
also capable of allocating resource for BARs.  Leveraging that means
removing N copies of this approach and having one place to manage BARs, etc.
Can you please try removing all of your I/O window and BAR setup and seeing
if the PCI bus works ok?  If not, we should fix it so that it does, but
fixing the PCI bus means we only have to fix one place, not N.

(And yes, I want to axe the code from the various arm places that do this
as well and want to avoid adding even more copies of it.)

-- 
John Baldwin