[Bug 94973] R9 380X (Tonga) SMC failure with pcie_dpm_key_disabled=0

[Bug 94973] R9 380X (Tonga) SMC failure with pcie_dpm_key_disabled=0

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https://bugs.freedesktop.org/show_bug.cgi?id=94973

            Bug ID: 94973
           Summary: R9 380X (Tonga) SMC failure with
                    pcie_dpm_key_disabled=0
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: jay@jcornwall.me

Created attachment 123000
  --> https://bugs.freedesktop.org/attachment.cgi?id=123000&action=edit
dmesg from drm-fixes-4.6

HW is R9 380X in primary PCIe 3 slot on ASUS P8B75-V with three monitors
attached (2x DVI and 1 HDMI).

First observed in 4.5 when Powerplay was enabled by default. Trace of SMC
messages around failure from drm-fixes-4.6 kernel:

[    9.666775] tonga_send_msg_to_smc(..., 0x145)
[    9.666799] tonga_send_msg_to_smc(..., 0x146)
[    9.666875] tonga_send_msg_to_smc(..., 0x5E)           
[    9.666895] tonga_send_msg_to_smc(..., 0x148)
[    9.667775] tonga_send_msg_to_smc(..., 0x145)
[    9.667800] tonga_send_msg_to_smc(..., 0x146)
[    9.774079] [drm] fb mappable at 0xE0BAA000
[    9.774083] [drm] vram apper at 0xE0000000
[    9.774085] [drm] size 9216000
[    9.774087] [drm] fb depth is 24
[    9.774089] [drm]    pitch is 7680
[    9.774213] fbcon: amdgpudrmfb (fb0) is primary device
[    9.774345] tonga_send_msg_to_smc(..., 0x5E)
[    9.943267] Failed to send Message.
[   10.112239] tonga_send_msg_to_smc(..., 0x145)

Other Powerplay functionality works correctly with pcie_dpm_key_disabled=1.

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[Bug 94973] R9 380X (Tonga) SMC failure with pcie_dpm_key_disabled=0

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https://bugs.freedesktop.org/show_bug.cgi?id=94973

--- Comment #1 from Jay Cornwall <jay@jcornwall.me> ---
Created attachment 123001
  --> https://bugs.freedesktop.org/attachment.cgi?id=123001&action=edit
R9 380X VBIOS

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[Bug 94973] R9 380X (Tonga) SMC failure with pcie_dpm_key_disabled=0

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https://bugs.freedesktop.org/show_bug.cgi?id=94973

--- Comment #2 from Alex Deucher <alexdeucher@gmail.com> ---
Is this still an issue?

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[Bug 94973] R9 380X (Tonga) SMC failure with pcie_dpm_key_disabled=0

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https://bugs.freedesktop.org/show_bug.cgi?id=94973

--- Comment #3 from Jay Cornwall <jay@jcornwall.me> ---
I think it got fixed a while ago. I'm running upstream with no changes/module
parameters.

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[Bug 94973] R9 380X (Tonga) SMC failure with pcie_dpm_key_disabled=0

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https://bugs.freedesktop.org/show_bug.cgi?id=94973

Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

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