[Intel-gfx] [PATCH 07/13] drm/i915: don't disable_fbc() if FBC is already disabled

[Maarten Lankhorst]

Hey,

Op 05-11-15 om 12:29 schreef Ville Syrjälä:
> On Wed, Nov 04, 2015 at 05:10:51PM -0200, Paulo Zanoni wrote:
>> If FBC is disabled we will still call intel_fbc_invalidate(), and as a
>> result we may call intel_fbc_deactivate(), which will try to touch
>> registers.
>>
>> I'm pretty sure I saw this happen on a runtime suspended device, and
> This is one of the BAT failures we have. I don't really understand why
> we track the frontbuffer bits with FBC totally disabled, but this fix
> seems simple enough on its own. Not sure if it applies without the
> others, but if it doesn't I suggest trying to reorder the patchset so
> we can put this in ASAP.
>
For the commit message what BAT is affected?

~Maarten