lkml.org 
[lkml]   [2007]   [Dec]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [Patch v2] Make PCI extended config space (MMCONFIG) a driver opt-in
From
Date

On Thu, 2007-12-27 at 13:37 -0800, Linus Torvalds wrote:
>
> > Does anybody knows what was the original rational to call
> > pci_enable_crs() by default?
>
> .. another good question. I don't think anybody expected it to be
> broken,
> but if this turns out to be the thing that triggers it, I think we
> should
> disable CRS by default.

Some sane archs need CRS and do a lot of HW.. However, just testing for
vendor ID being 0x0001 instead of testing all bits might be a useable
workaround.

> The code doesn't actually do what CRS is supposed to help with (ie go
> on
> to probe another device and then come back to the slow one later), so
> right now it's pretty much useless *anyway*.



\
 
 \ /
  Last update: 2007-12-28 06:31    [W:0.091 / U:0.088 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site