Re: [Intel-gfx] [PATCH v2] drm/i915/psr: HW tracking for cursor moves to fix lags.

2018-02-13 Thread Pandiyan, Dhinakaran
On Tue, 2018-02-13 at 22:59 +, Chris Wilson wrote: > Quoting Pandiyan, Dhinakaran (2018-02-13 22:45:55) > > > > > > > > On Tue, 2018-02-13 at 22:15 +, Chris Wilson wrote: > > > Quoting Pandiyan, Dhinakaran (2018-02-13 22:10:48) > > > > > > > > > > > > > > > > On Tue, 2018-02-13 at

Re: [Intel-gfx] [PATCH v2] drm/i915/psr: HW tracking for cursor moves to fix lags.

2018-02-13 Thread Chris Wilson
Quoting Pandiyan, Dhinakaran (2018-02-13 22:45:55) > > > > On Tue, 2018-02-13 at 22:15 +, Chris Wilson wrote: > > Quoting Pandiyan, Dhinakaran (2018-02-13 22:10:48) > > > > > > > > > > > > On Tue, 2018-02-13 at 21:54 +, Chris Wilson wrote: > > > > Quoting Dhinakaran Pandiyan

Re: [Intel-gfx] [PATCH v2] drm/i915/psr: HW tracking for cursor moves to fix lags.

2018-02-13 Thread Pandiyan, Dhinakaran
On Tue, 2018-02-13 at 22:15 +, Chris Wilson wrote: > Quoting Pandiyan, Dhinakaran (2018-02-13 22:10:48) > > > > > > > > On Tue, 2018-02-13 at 21:54 +, Chris Wilson wrote: > > > Quoting Dhinakaran Pandiyan (2018-02-13 21:46:13) > > > > DRM_IOCTL_MODE_CURSOR results in a frontbuffer

Re: [Intel-gfx] [PATCH v2] drm/i915/psr: HW tracking for cursor moves to fix lags.

2018-02-13 Thread Chris Wilson
Quoting Pandiyan, Dhinakaran (2018-02-13 22:10:48) > > > > On Tue, 2018-02-13 at 21:54 +, Chris Wilson wrote: > > Quoting Dhinakaran Pandiyan (2018-02-13 21:46:13) > > > DRM_IOCTL_MODE_CURSOR results in a frontbuffer flush before the cursor > > > plane MMIOs are written to. But this flush

Re: [Intel-gfx] [PATCH v2] drm/i915/psr: HW tracking for cursor moves to fix lags.

2018-02-13 Thread Pandiyan, Dhinakaran
On Tue, 2018-02-13 at 21:54 +, Chris Wilson wrote: > Quoting Dhinakaran Pandiyan (2018-02-13 21:46:13) > > DRM_IOCTL_MODE_CURSOR results in a frontbuffer flush before the cursor > > plane MMIOs are written to. But this flush is not necessary for PSR as > > hardware tracking takes care of

Re: [Intel-gfx] [PATCH v2] drm/i915/psr: HW tracking for cursor moves to fix lags.

2018-02-13 Thread Chris Wilson
Quoting Dhinakaran Pandiyan (2018-02-13 21:46:13) > DRM_IOCTL_MODE_CURSOR results in a frontbuffer flush before the cursor > plane MMIOs are written to. But this flush is not necessary for PSR as > hardware tracking takes care of exiting PSR when the MMIO's are written. > > Introduce a new