[Intel-gfx] [PATCH 4/4] drm/atomic-helpers: Recover full cursor plane behaviour

[Daniel Vetter]

On Wed, Jan 21, 2015 at 04:59:08PM +0000, Dave Gordon wrote:
> On 20/01/15 22:09, Daniel Vetter wrote:
> > Cursor plane updates have historically been fully async and mutliple
> > updates batched together for the next vsync. And userspace relies upon
> > that. Since implementing a full queue of async atomic updates is a bit
> > of work lets just recover the cursor specific behaviour with a hint
> > flag and some hacks to drop the vblank wait.
> 
> I tried this patch 4/4 alone, and then the whole set of four, on
> -internal, which is currently also suffering from the laggy-mouse
> problem, and it didn't fix the issue. Was it expected that this patchset
> would cure that problem, or is there something else required?

Nah, since I didn't bother to hack up the plane transitional helpers that
we're currently using. The laggy cursor /should/ be mostly fixed though
with

commit d99b70ce7d73d78a88311453ccdd0fa0a670dd50
Author: Matt Roper <matthew.d.roper at intel.com>
Date:   Mon Jan 19 08:31:49 2015 -0800

    drm/plane-helper: Skip prepare_fb/cleanup_fb when newfb==oldfb

Can you pls double-check that you have that patch?

This patch series here is only effective one Matt Roper's latest series to
switch to atomic proper has landed. But if there's a need I can extend it
a bit to the plane transitional helpers.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch