Hi Michel, Thanks. I know the root cause, and will fix this issue today. Best Regards Rex > -----Original Message----- > From: Michel Dänzer <michel at daenzer.net> > Sent: Thursday, August 23, 2018 12:31 AM > To: Zhu, Rex <Rex.Zhu at amd.com> > Cc: amd-gfx at lists.freedesktop.org > Subject: Regression: Kaveri VCE ring test fails > > > Hi Rex, > > > I bisected a regression to your "drm/amd/pp: Unify > powergate_uvd/vce/mmhub to set_powergating_by_smu" change. Since this > change, the VCE ring test fails on this Kaveri laptop, which prevents the > amdgpu driver from initializing at all, see the the attached kern.log. > > If I disable VCE via the ip_block_mask module parameter, I get an oops in > kv_dpm_get_sclk called from amdkfd, see the attached no-vce.log. > > > Since the change above landed for 4.19-rc1, the regression should be fixed > before the final 4.19 release if at all possible. > > > Note that before this change, the VCE IB test has always (as far as I > remember) failed on this machine, see the attached vce-ib-fail.log. But I don't > care about that too much, as I don't need VCE, and I haven't noticed any > other issues related to that. > > > P.S. Somebody else bisected a Mullins issue to the same commit: > https://bugs.freedesktop.org/show_bug.cgi?id=107595 > > -- > Earthling Michel Dänzer | http://www.amd.com > Libre software enthusiast | Mesa and X developer
