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linux/drivers/gpu/drm/amd/pm
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: expand cg_flags from u32 to u64 2022-04-08 17:24:24 -04:00
legacy-dpm drm/amd/pm: add missing prototypes to amdgpu_dpm_internal 2022-02-07 18:03:50 -05:00
powerplay drm/amdgpu/smu10: fix SoC/fclk units in auto mode 2022-04-06 10:20:45 -04:00
swsmu amdgpu/pm: Clarify documentation of error handling in send_smc_mesg 2022-04-19 13:58:32 -04:00
amdgpu_dpm.c drm/amdgpu/pm: fix the null pointer while the smu is disabled 2022-04-19 13:58:32 -04:00
amdgpu_dpm_internal.c drm/amd/pm: add missing prototypes to amdgpu_dpm_internal 2022-02-07 18:03:50 -05:00
amdgpu_pm.c drm/amdgpu: expand cg_flags from u32 to u64 2022-04-08 17:24:24 -04:00
Makefile drm/amd/pm: relocate the power related headers 2022-01-14 17:51:14 -05:00