On Wed, 2018-02-14 at 09:25 +0100, Hans de Goede wrote: > Hi, > > On 12-02-18 18:42, Pandiyan, Dhinakaran wrote: > > On Mon, 2018-02-12 at 09:45 +0100, Hans de Goede wrote: > >> Hi, > >> > >> On 12-02-18 07:08, Dhinakaran Pandiyan wrote: > >>> PSR currently when enabled results in semi-permanent freezes or noticeable > >>> cursor lags. > >>> > >>> https://patchwork.freedesktop.org/series/37598/ will fix long freezes due > >>> to frame counter resets. > >>> > >>> This series has three more fixes - > >>> Patch 1 eliminates PSR exit for flips and makes us rely on the HW to do it. > >>> Patch 2 fixes cusor move lag by relying on HW to exit PSR. > >>> Patch 3 fixes temporary freeze seen with fbdev. > >>> > >>> With both the series applied, PSR on my SKL ThinkPad feels pretty good. > >> > >> Thank you for your great work on this. > >> > >> Are there any more PSR fixes in the pipeline? > > > > Yeah, there are a few more fixes that I hope will appear on the list in > > the next two weeks or so. > > Ok, can you send a mail when you're done (in sofar any software is ever > "done") and you would like me to ask all people who have been kind enough > to test PSR to retest ? > Hi Hans, Thanks for your patience and help. I believe the current drm-tip is in a decent shape to retest PSR. Booting with i915.enable_psr = 1 is still needed. The fixes have been mostly developed/tested on gen-9 hardware but they apply to other platforms too. -DK > >> If not I think I should do > >> a custom Fedora kernel build based on 4.15 + recent fixes and ask all my > >> testers to retest with that. > >> > >> I do have some questions before I do this: > >> > >> 1) I believe that only testers with skylake (normal or LP) or newer should > >> re-test, correct? > > > > These fixes do apply for HSW/BDW, so essentially all the big cores > > supporting PSR. But, HSW/BDW need fixes for AUX channel-PSR interaction > > also. I haven't looked into CHV/VLV. > > > >> > >> 2) I know there are 2 series (including this one), can someone provide a link > >> to the latest patchwork version of those 2 series, or even better a git > >> branch with 4.15 + those patches? Any patches I'm missing if I pick up these > >> 2 series? > > > > https://patchwork.freedesktop.org/series/37598/ > > https://patchwork.freedesktop.org/series/38067/ > > > > > >> 3) I'm thinking 4.15 atm, but I could also do a 4.16-rc1 test kernel instead > >> if that would be better, would that be better ? > > > > I can't think of any diff that would affect PSR, but the latest is > > better I suppose. > > Ok. > > Regards, > > Hans > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/intel-gfx _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
