lkml.org 
[lkml]   [2007]   [Sep]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [patches] [patch 3/5] x86: Add PCI extended config space access for AMD Barcelona
Date

> But it is needed for some devices for full functionality.

Examples? I can only think of PCI express error reporting, which
few drivers implement anyways and isn't really a show stopper
if it doesn't work. Besides I would be surprised if it even works
on the cheap desktop boards which have MCFG less BIOS.

> E.g. for perfmon (family 0x10/extended inerrupts) extended config space
> access is a prerequisite.

How so?


>
> IMHO it is best to try to use MMCONFIG if it's working and to use
> a fallback (e.g. CF8 ECS access for family 0x10) if available.

We only put in workarounds if there is a serious problem otherwise (e.g. not
booting etc.). I just don't see this here.

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

\
 
 \ /
  Last update: 2007-09-03 12:19    [from the cache]
©2003-2011 Jasper Spaans