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linux/drivers/gpu/drm/amd/pm/swsmu
Darren Powell f24044bd9b amdgpu/pm: Clarify documentation of error handling in send_smc_mesg
Clarify the smu_cmn_send_smc_msg_with_param documentation to mention two
cases exist where messages are silently dropped with no error returned.
These cases occur in unusual situations where either:
 1. the message type is not allowed to a virtual GPU, or
 2. a PCI recovery is underway and the HW is not yet in sync with the SW

For more details see
 commit 4ea5081c82 ("drm/amd/powerplay: enable SMC message filter")
 commit bf36b52e78 ("drm/amdgpu: Avoid accessing HW when suspending SW state")

(v2)
  Reworked with suggestions from Luben & Paul

(v3)
  Updated wording as per Luben's feedback
  Corrected error stating all messages denied on virtual GPU
  (each GPU has mask of which messages are allowed)

Signed-off-by: Darren Powell <darren.powell@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-19 13:58:32 -04:00
..
inc drm/amdgpu: Fix unique_id references for Sienna Cichlid 2022-03-31 23:05:54 -04:00
smu11 drm/amdgpu: Fix unique_id references for Sienna Cichlid 2022-03-31 23:05:54 -04:00
smu12 drm/amd/pm: validate SMU feature enable message for getting feature enabled mask 2022-02-22 14:44:36 -05:00
smu13 drm/amdgpu: Use metrics data function to get unique_id for Aldebaran 2022-03-31 23:05:54 -04:00
amdgpu_smu.c drm/amd/pm: add send bad channel info function 2022-03-15 14:25:16 -04:00
Makefile drm/amd/swsmu: add aldebaran smu13 ip support (v3) 2021-03-23 22:54:24 -04:00
smu_cmn.c amdgpu/pm: Clarify documentation of error handling in send_smc_mesg 2022-04-19 13:58:32 -04:00
smu_cmn.h drm/amd/pm: revise the implementation of smu_cmn_disable_all_features_with_exception 2022-02-07 18:01:16 -05:00
smu_internal.h drm/amd/pm: correct the default DriverSmuConfig table settings 2022-02-16 16:57:34 -05:00