Bug 112007

Summary: Broken powerplay table for Navi10 RX 5700XT.
Product: DRI Reporter: dobreff
Component: DRM/AMDgpuAssignee: Default DRI bug account <dri-devel>
Status: RESOLVED FIXED QA Contact:
Severity: blocker    
Priority: not set    
Version: unspecified   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
i915 platform: i915 features:
Description Flags
SMU failed after pptable reload. none

Description dobreff 2019-10-14 21:17:17 UTC
Created attachment 145742 [details]
SMU failed after pptable reload.

Seems that something has changed in navi10 powerplay code and is now not working. Its present in current amd-staging-drm-next and amd-mainline-dkms-5.0(which was used to track the problem).
Been able to track it between two versions: 5.0.81(48317fb4380e525ee96187dc02f3902694696fed) confirmed working and 5.0.82(fdf4947d93b84a0ec722cbccb040ff1d22b85281) affected(see attachment).
You can reproduce by simply copying same pp_table over running.
Comment 1 Andrew Sheldon 2019-10-15 09:42:00 UTC
I've had this issue as well. You can workaround by reverting this commit:

commit faa695c715e5c9203af824315127037499b33921
Author: Evan Quan <evan.quan@amd.com>
Date:   Mon Sep 2 12:37:23 2019 +0800

    drm/amd/powerplay: do proper cleanups on hw_fini
    These are needed for smu_reset support.
    Signed-off-by: Evan Quan <evan.quan@amd.com>
    Reviewed-by: Jack Gui <Jack.Gui@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Comment 2 dobreff 2019-10-15 13:55:51 UTC
Yes, thank you. That seems to fix powerplay issues.

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