Re: [Intel-gfx] [PATCH 01/10] drm/i915: Check for a stalled page flip after each vblank

2014-09-02 Thread Chris Wilson
On Tue, Sep 02, 2014 at 04:52:54PM +0200, Daniel Vetter wrote: > On Tue, Sep 02, 2014 at 02:57:36PM +0100, Chris Wilson wrote: > > Long ago, back in the racy haydays of 915gm interrupt handling, page > > flips would occasionally go astray and leave the hardware stuck, and the > > display not updati

Re: [Intel-gfx] [PATCH 01/10] drm/i915: Check for a stalled page flip after each vblank

2014-09-02 Thread Daniel Vetter
On Tue, Sep 02, 2014 at 02:57:36PM +0100, Chris Wilson wrote: > Long ago, back in the racy haydays of 915gm interrupt handling, page > flips would occasionally go astray and leave the hardware stuck, and the > display not updating. This annoyed people who relied on their systems > being able to dis

Re: [Intel-gfx] [PATCH 01/10] drm/i915: Check for a stalled page flip after each vblank

2014-09-02 Thread Chris Wilson
On Tue, Sep 02, 2014 at 05:31:22PM +0300, Ville Syrjälä wrote: > On Tue, Sep 02, 2014 at 02:57:36PM +0100, Chris Wilson wrote: > > Long ago, back in the racy haydays of 915gm interrupt handling, page > > flips would occasionally go astray and leave the hardware stuck, and the > > display not updati

Re: [Intel-gfx] [PATCH 01/10] drm/i915: Check for a stalled page flip after each vblank

2014-09-02 Thread Ville Syrjälä
On Tue, Sep 02, 2014 at 02:57:36PM +0100, Chris Wilson wrote: > Long ago, back in the racy haydays of 915gm interrupt handling, page > flips would occasionally go astray and leave the hardware stuck, and the > display not updating. This annoyed people who relied on their systems > being able to dis

[Intel-gfx] [PATCH 01/10] drm/i915: Check for a stalled page flip after each vblank

2014-09-02 Thread Chris Wilson
Long ago, back in the racy haydays of 915gm interrupt handling, page flips would occasionally go astray and leave the hardware stuck, and the display not updating. This annoyed people who relied on their systems being able to display continuously updating information 24/7, and so some code to detec