Re: [Intel-gfx] [PATCH] drm/i915: Use mmio flips harder

2014-11-26 Thread Chris Wilson
On Wed, Nov 26, 2014 at 04:45:03PM +, Chris Wilson wrote: > On Wed, Nov 26, 2014 at 05:25:32PM +0100, Daniel Vetter wrote: > > Somehow (i.e. purely experimental evidence from users out there in the > > wild) using CS flips seems to be implicated in hw context switch > > hangs. > > > > I have n

Re: [Intel-gfx] [PATCH] drm/i915: Use mmio flips harder

2014-11-26 Thread Damien Lespiau
On Wed, Nov 26, 2014 at 05:25:32PM +0100, Daniel Vetter wrote: > Somehow (i.e. purely experimental evidence from users out there in the > wild) using CS flips seems to be implicated in hw context switch > hangs. > > I have no idea why, but let's just try this out. > > Bugzilla: https://bugs.freed

Re: [Intel-gfx] [PATCH] drm/i915: Use mmio flips harder

2014-11-26 Thread Chris Wilson
On Wed, Nov 26, 2014 at 05:25:32PM +0100, Daniel Vetter wrote: > Somehow (i.e. purely experimental evidence from users out there in the > wild) using CS flips seems to be implicated in hw context switch > hangs. > > I have no idea why, but let's just try this out. > > Bugzilla: https://bugs.freed

[Intel-gfx] [PATCH] drm/i915: Use mmio flips harder

2014-11-26 Thread Daniel Vetter
Somehow (i.e. purely experimental evidence from users out there in the wild) using CS flips seems to be implicated in hw context switch hangs. I have no idea why, but let's just try this out. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78960 References: https://bugs.freedesktop.org/sho