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drm/amd: Avoid ASSERT for some message failures

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On DCN314 when resuming from s0i3 an ASSERT is shown indicating that
`VBIOSSMC_MSG_SetHardMinDcfclkByFreq` returned `VBIOSSMC_Result_Failed`.

This isn't a driver bug; it's a BIOS/configuration bug. To make this
easier to triage, add an explicit warning when this issue happens.

This matches the behavior utilized for failures with
`VBIOSSMC_MSG_TransferTableDram2Smu` configuration.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Mario Limonciello 2023-01-11 15:52:31 -06:00 committed by Alex Deucher
parent 3c6d1aeb43
commit 3e5019ee67
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_smu.c
View file

@ -146,6 +146,9 @@ static int dcn314_smu_send_msg_with_param(struct clk_mgr_internal *clk_mgr,
if (msg_id == VBIOSSMC_MSG_TransferTableDram2Smu &&
param == TABLE_WATERMARKS)
DC_LOG_WARNING("Watermarks table not configured properly by SMU");
else if (msg_id == VBIOSSMC_MSG_SetHardMinDcfclkByFreq ||
msg_id == VBIOSSMC_MSG_SetMinDeepSleepDcfclk)
DC_LOG_WARNING("DCFCLK_DPM is not enabled by BIOS");
else
ASSERT(0);
REG_WRITE(MP1_SMN_C2PMSG_91, VBIOSSMC_Result_OK);