On Fri, May 16, 2014 at 3:23 AM, Chris Wilson <ch...@chris-wilson.co.uk>wrote:
> On Thu, May 15, 2014 at 08:13:05PM -0400, Rodrigo Vivi wrote: > > The perfect solution for psr_exit is the hardware tracking the changes > and > > doing the psr exit by itself. This scenario works for HSW and BDW with > some > > environments like Gnome and Wayland. > > > > However there are many other scenarios that this isn't true. Mainly one > right > > now is KDE users on HSW and BDW with PSR on. User would miss many screen > > updates. For instances any key typed could be seen only when mouse > cursor is > > moved. So this patch introduces the ability of trigger PSR exit on > kernel side > > on some common cases that. > > You know that userspace has been waiting for a PSR flag for over a year > now so that it can use the more efficient rendering paths when it makes > sense. > yeah... this item is lingering on my to do list... but reaching a point where I won't be able to continue postponing it ;) > What happened to the front buffer tracking? What front buffer tracking? hehe I'm wondering about this since I started looking to fbc and psr and could never find a reliable way. -Chris > > -- > Chris Wilson, Intel Open Source Technology Centre > -- Rodrigo Vivi Blog: http://blog.vivi.eng.br
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