[PATCH 20/23] drm/amd/display: Disables dynamic memory clock switching in games

[VURDIGERENATARAJ, CHANDAN]

Hi,

Can you please elaborate on why dynamic memory clock switching can affect Game performance?

BR,
Chandan V N


>On 2022-06-10 22:52, Hamza Mahfooz wrote:
>> From: Harry VanZyllDeJong <harry.vanzylldejong at amd.com>
>> 
>> [WHY]
>> Game performace may be affected if dynamic memory clock switching is 
>> enabled while playing games.
>> 
>> [HOW]
>> Propagate the vrr active state to dirty bit so that on mode set it 
>> disables dynamic memory clock switching.
>
>So dynamic memory clock switching will be disabled whenever VRR is enabled?
>
>Note that there is ongoing discussion about how Wayland compositors could usefully keep VRR enabled all the time, as opposed to only while >there's a fullscreen application like a game. So "VRR is enabled" likely won't be equivalent to "game is running" in the long term.
>
>
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