Re: [PATCH] drm/i915: FBC flush nuke for BDW

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On Tue, Aug 26, 2014 at 8:38 PM, Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> wrote:
> On Tue, Aug 26, 2014 at 12:54 AM, Daniel Vetter <daniel@xxxxxxxx> wrote:
>> On Tue, Aug 26, 2014 at 2:39 AM, Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
>> wrote:
>> > So I prefer to continue using the HW/ring version we have already
>> > working
>> > for HSW and merge this v3 to get FBC working at BDW.
>>
>> Well for that we first need to fix up the psr testcase. I really want
>> that.
>
> fbc and psr are independend features and tasks prioritization should come
> from managers and program managers, right?!
>
>> And then I also want fbc enabled by default, which means you need to
>> rebase/review Ville's patch series to make that work.
>
> We have FBC working with issues and protected by parameter on all platforms.
> On BDW there is no fbc at all. This patch makes FBC state at least go to the
> same level as we already have FBC working on all other platforms.
>
> I don't see a dependency here between this fix and the big FBC rework-fix.
> This patch isn't enabling FBC by default. But allowing people that want and
> need to use FBC.

It's going to be the same answer for both parts - I don't really like
if we add features but don't complete them (so testcases and enabled
by default). And in our long meeting today a lot of people asked my
why I'm reluctant to merge patches so that we can clean them up
in-tree (which I agree is often the much more efficient approach).
Reactions like yours here are pretty much the reason for that -
getting something in to make an internal customer happy or check of a
box in our tracking or some other requirement and then move on right
away.

And I know that you yourself are in a very bad spot trenched between
me and requests from management and project tracking. And this is also
not to single out you at all, it's just what I see all over.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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