Re: [Intel-gfx] [PATCH 2/5] drm/vblank: Restoring vblank counts after device runtime PM events.

2018-01-03 Thread Chris Wilson
Quoting Dhinakaran Pandiyan (2018-01-03 20:39:58) > The HW frame counter can get reset when devices enters low power > states and this messes up any following vblank count updates. So, compute > the missed vblank interrupts for that low power state duration using time > stamps. This is similar to _

[Intel-gfx] [PATCH 2/5] drm/vblank: Restoring vblank counts after device runtime PM events.

2018-01-03 Thread Dhinakaran Pandiyan
The HW frame counter can get reset when devices enters low power states and this messes up any following vblank count updates. So, compute the missed vblank interrupts for that low power state duration using time stamps. This is similar to _crtc_vblank_on() except that it doesn't enable vblank inte

[Intel-gfx] [PATCH 2/5] drm/vblank: Restoring vblank counts after device runtime PM events.

2017-12-06 Thread Dhinakaran Pandiyan
The HW frame counter can get reset when devices enters low power states and this messes up any following vblank count updates. So, compute the missed vblank interrupts for that low power state duration using time stamps. This is similar to _crtc_vblank_on() except that it doesn't enable vblank inte