regression on raven (gmc9)

[Deng, Emily]

Hi Christian,
     I know this, but seems it will take long time to do this, and this issue has blocked vega10 sriov for long time. 
But we want the staging to be stable on vega10 sriov  as soon as possible.

Best Wishes,
Emily Deng

> -----Original Message-----
> From: Koenig, Christian
> Sent: Tuesday, April 03, 2018 5:22 PM
> To: Deng, Emily <Emily.Deng at amd.com>; Alex Deucher
> <alexdeucher at gmail.com>; StDenis, Tom <Tom.StDenis at amd.com>
> Cc: Deucher, Alexander <Alexander.Deucher at amd.com>; Huang, Ray
> <Ray.Huang at amd.com>; amd-gfx at lists.freedesktop.org
> Subject: Re: regression on raven (gmc9)
> 
> Hi Emily,
> 
> the root cause of the hang was found and as far as I know the plan is to fix
> this with new RLC firmware.
> 
> Please see the internal thread with the hardware guys.
> 
> Thanks,
> Christian.
> 
> Am 03.04.2018 um 03:54 schrieb Deng, Emily:
> > Hi Alex and Christian,
> >      Those patches are important for vega10 SRIOV, without this,
> > vega10 run many games will hang on SRIOV, how about to add  "if
> > (amdgpu_sriov_vf(adev) && adev->asic_type == CHIP_VEGA10)" to
> separate the bare metal and SRIOV?
> >
> > Best Wishes,
> > Emily Deng
> >
> >
> >
> >
> >> -----Original Message-----
> >> From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On
> >> Behalf Of Christian K?nig
> >> Sent: Monday, April 02, 2018 11:23 PM
> >> To: Alex Deucher <alexdeucher at gmail.com>; StDenis, Tom
> >> <Tom.StDenis at amd.com>
> >> Cc: Deucher, Alexander <Alexander.Deucher at amd.com>; Huang, Ray
> >> <Ray.Huang at amd.com>; amd-gfx at lists.freedesktop.org
> >> Subject: Re: regression on raven (gmc9)
> >>
> >> Am 02.04.2018 um 17:00 schrieb Alex Deucher:
> >>> On Mon, Apr 2, 2018 at 7:17 AM, Tom St Denis <tstdenis at amd.com>
> >> wrote:
> >>>> This commit
> >>>>
> >>>> [root at raven linux]# git bisect bad
> >>>> c704d7a15d292e6e222b7e990ed7e9f41617cdd8 is the first bad commit
> >>>> commit c704d7a15d292e6e222b7e990ed7e9f41617cdd8
> >>>> Author: Alex Deucher <alexander.deucher at amd.com>
> >>>> Date:   Tue Mar 27 17:10:56 2018 -0500
> >>>>
> >>>>       drm/amdgpu/gmc9: use amdgpu_ring_emit_reg_write_reg_wait in
> >>>> gpu tlb flush
> >>>>
> >>>>       Use amdgpu_ring_emit_reg_write_reg_wait.  On engines that
> >>>> support
> >> it,
> >>>>       it provides a write and wait in a single packet which avoids a missed
> >>>>       ack if a world switch happens between the request and waiting for
> the
> >>>>       ack.
> >>>>
> >>>>       Reviewed-by: Huang Rui <ray.huang at amd.com>
> >>>>       Reviewed-by: Christian König <christian.koenig at amd.com>
> >>>>       Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> >>>>
> >>>> :040000 040000 a08a12a316d09ea231337136cc7aa076d4da44a8
> >>>> 521c8a18b0c63e185e416a267619a92822d7f268 M      drivers
> >>>>
> >>>> Causes my raven1 to lockup on starting X with a gfx ring stall.
> >>> I've reverted the patches.
> >> Yeah, you need a specialized firmware version for this which Raven
> >> probably doesn't have.
> >>
> >> Anyway the root cause of the issue which should be fixed by this
> >> patch set was found in the meantime, so the whole patch set shouldn't
> >> be necessary any more.
> >>
> >> Christian.
> >>
> >>> Alex
> >>>
> >>>> Tom
> >>>> _______________________________________________
> >>>> amd-gfx mailing list
> >>>> amd-gfx at lists.freedesktop.org
> >>>> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
> >> _______________________________________________
> >> amd-gfx mailing list
> >> amd-gfx at lists.freedesktop.org
> >> https://lists.freedesktop.org/mailman/listinfo/amd-gfx