[PATCH v2 0/3][SRU][I][OEM-5.13] It hangs while booting up with AMD W6800 [1002:73A3]

AceLan Kao acelan.kao at canonical.com
Fri Oct 1 03:36:01 UTC 2021

From: "Chia-Lin Kao (AceLan)" <acelan.kao at canonical.com>

BugLink: https://bugs.launchpad.net/bugs/1945553

It hangs when booting up with AMD W6800 [1002:73A3] graphics card.

Bisect the kernel and found below fix from v5.15-rc1 mainline kernel
5810323ba692 drm/amd/pm: Fix a bug communicating with the SMU (v5)

Verified the patch on a Dell workstation with AMD W6800 graphics card

[Where problems could occur]
The code flow doesn't change much, but with better return codes handling
and print out more meaningful messages. So it should not impact the already
working devices.

Andrey Grodzovsky (1):
  drm/amdgpu: Rename flag which prevents HW access

Luben Tuikov (2):
  drm/amd/pm: Fix a bug communicating with the SMU (v5)
  drm/amd/pm: Fix a bug in semaphore double-lock

 drivers/gpu/drm/amd/amdgpu/amdgpu.h        |   2 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c |   6 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c    |   4 +-
 drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c     |   2 +-
 drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c     | 288 +++++++++++++++++----
 drivers/gpu/drm/amd/pm/swsmu/smu_cmn.h     |   3 +-
 6 files changed, 250 insertions(+), 55 deletions(-)


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