On 1/11/23 16:52, Mario Limonciello wrote:
> 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 <[email protected]>

Reviewed-by: Harry Wentland <[email protected]>

Harry

> ---
>  drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_smu.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_smu.c 
> b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_smu.c
> index f47cfe6b42bd2..0765334f08259 100644
> --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_smu.c
> +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_smu.c
> @@ -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);

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