Re: [Intel-gfx] [PATCH 1/2] drm/i915/gen9: unconditionally apply the memory bandwidth WA

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On Tue, Oct 11, 2016 at 10:34:14AM +0300, Jani Nikula wrote:
> On Mon, 10 Oct 2016, Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx> wrote:
> > Mahesh Kumar is already working on a proper implementation for the
> > workaround, but while we still don't have it, let's just
> > unconditionally apply the workaround for everybody and we hope we can
> > close all those numerous bugzilla tickets. Also, I'm not sure how easy
> > it will be to backport the final implementation to the stable Kernels,
> > and this patch here is probably easier to backport.
> >
> > At the present moment I still don't have confirmation that this patch
> > fixes any of the bugs listed below, but we should definitely try
> > testing all of them again.
> >
> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94337
> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94605
> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94884
> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=95010
> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96226
> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96828
> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97450
> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97830
> > Cc: stable@xxxxxxxxxxxxxxx
> 
> The patch is a bit on the large side for stable. 100 lines with context
> is the rule.

Huh?  It's only 49 line of changes:

> >  drivers/gpu/drm/i915/intel_pm.c | 49 ++++++++++++++++++++++++++++++++++-------
> >  1 file changed, 41 insertions(+), 8 deletions(-)

That's fine for stable, we take i915 stable patches much bigger than
that all the time :)

thanks,

greg k-h
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