[PATCH v5 0/2] Send message to PMFW when SMT changes

[Wenyou Yang]

When the SMT changes on the fly, send the message to the PMFW
to notify the SMT status changed.

Changes in v5
1./ Add a new vangogh_fini_smc_tables() to accommodate the timer fini
and smu_v11_0_fini_smc_tables(). 
2./ Move the version check of SMU version before initializing the timer.

Changes in v4
1./ Since we didn't find a good solution to handle the case that
manually offlining all the SMT siblings using
/sys/devices/system/cpu/cpu*/online to disable or enable SMT.
Come up with a new solution, add a timer to poll the SMT state
periodically, if finding that the SMT state is changed, it invokes
the interface to notify the PMFW.
2./ Move the generic code to smu_cmn.c. 
3./ Add PMFW version check for this feature.

Changes in v3
1./ Because it is only required for Vangogh, move registering notifier
to vangogh_ppt.c, then remove the patch 2, and the number of patches
decreased to 2.

Changes in v2:
1/. Embed the smt notifer callback into "struct smu_context" structure.
2/. Correct the PPSMC_Message_Count value.
3/. Improve several code styles and others.

Wenyou Yang (2):
  drm/amd/pm: Add support to check SMT state periodically
  drm/amd/pm/vangogh: Send SMT enable message to PMFW

 drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h |  8 ++++
 .../pm/swsmu/inc/pmfw_if/smu_v11_5_ppsmc.h    |  3 +-
 drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h  |  3 +-
 .../gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c  | 32 +++++++++++++-
 drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c        | 44 +++++++++++++++++++
 drivers/gpu/drm/amd/pm/swsmu/smu_cmn.h        |  5 +++
 6 files changed, 92 insertions(+), 3 deletions(-)

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2.39.2