[Intel-gfx] [PATCH] drm/i915: Enable FBC on GEN7 by default

[Stéphane Marchesin]

On Tue, Mar 25, 2014 at 12:27 AM, Chris Wilson <chris at chris-wilson.co.uk> wrote:
> On Mon, Mar 24, 2014 at 06:21:22PM -0700, Ben Widawsky wrote:
>> I am not clear why we've never enabled it by default for GEN7. Looking
>> at the git hostiry, it seems Rodrigo disabled it by default, and it's
>> never been turned on. Quite a few fixes have gone in over the past year,
>> and I think many of us are running this successfully.
>>
>> If there is some reason we know of why we don't enable this by default
>> on GEN7, then please ignore the patch, and forgive my laziness.
>
> Other than the major performance degredation due to our implementation,

That sounds interesting, can you elaborate on the performance
degradation? I haven't noticed any, but of course I don't know how
it's supposed to behave...

Stéphane