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linux/drivers/gpu
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
..
drm amdgpu/pm: Clarify documentation of error handling in send_smc_mesg 2022-04-19 13:58:32 -04:00
host1x gpu: host1x: Fix a memory leak in 'host1x_remove()' 2022-03-01 11:13:09 +01:00
ipu-v3 media: i.MX6: Support 16-bit BT.1120 video input 2021-10-19 08:08:38 +01:00
trace
vga vgaarb: don't pass a cookie to vga_client_register 2021-07-21 10:29:10 +02:00
Makefile