[regression 5.7-rc1] System does not power off, just halts
Paul Menzel
pmenzel at molgen.mpg.de
Mon Apr 13 17:32:03 UTC 2020
Dear Prike, dear Alex, dear Linux folks,
Am 13.04.20 um 10:44 schrieb Paul Menzel:
> A regression between causes a system with the AMD board MSI B350M MORTAR
> (MS-7A37) with an AMD Ryzen 3 2200G not to power off any more but just
> to halt.
>
> The regression is introduced in 9ebe5422ad6c..b032227c6293. I am in the
> process to bisect this, but maybe somebody already has an idea.
I found the Easter egg:
> commit 487eca11a321ef33bcf4ca5adb3c0c4954db1b58
> Author: Prike Liang <Prike.Liang at amd.com>
> Date: Tue Apr 7 20:21:26 2020 +0800
>
> drm/amdgpu: fix gfx hang during suspend with video playback (v2)
>
> The system will be hang up during S3 suspend because of SMU is pending
> for GC not respose the register CP_HQD_ACTIVE access request.This issue
> root cause of accessing the GC register under enter GFX CGGPG and can
> be fixed by disable GFX CGPG before perform suspend.
>
> v2: Use disable the GFX CGPG instead of RLC safe mode guard.
>
> Signed-off-by: Prike Liang <Prike.Liang at amd.com>
> Tested-by: Mengbing Wang <Mengbing.Wang at amd.com>
> Reviewed-by: Huang Rui <ray.huang at amd.com>
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> Cc: stable at vger.kernel.org
It reverts cleanly on top of 5.7-rc1, and this fixes the issue.
Greg, please do not apply this to the stable series. The commit message
doesn’t even reference a issue/bug report, and doesn’t give a detailed
problem description. What system is it?
Dave, Alex, how to proceed? Revert? I created issue 1094 [1].
Kind regards,
Paul
[1]: https://gitlab.freedesktop.org/drm/amd/-/issues/1094
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