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

[Stanislav Galabov]

> On Apr 8, 2016, at 19:11, John Baldwin <jhb at freebsd.org> wrote:
> 
>> 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

No problem, I will try to look into this next week.

Best wishes,
Stanislav