0a25e8eb95
[why] Dummy pstate latency actually varies between different UCLK frequencies, when calculating watermark C, if DAL always assumes worst case, then it can lead to dummy pstate not supported scenarios. [how] Rather than statically calculating dummy pstate using worst case, we store the entire table of UCLK to dummy pstate relationships. On a per mode basis, we calculate the actual UCLK lower limit, and use the dynamic worst case dummy pstate latency. This prevents the situation where we don't support full p-state (which will force high DPM), but still use low DPM dummy pstate latency. Signed-off-by: Jun Lei <jun.lei@amd.com> Reviewed-by: Joshua Aberback <Joshua.Aberback@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> |
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