[Intel-gfx] [PATCH] drm/i915/perf: implement active wait for noa configurations

From: Lionel Landwerlin NOA configuration take some amount of time to apply. That amount of time depends on the size of the GT. There is no documented time for this. For example, past experimentations with powergating configuration changes seem to indicate a 60~70us delay. We go with 500us as def

[Intel-gfx] [PATCH] drm/i915/perf: implement active wait for noa configurations

From: Lionel Landwerlin NOA configuration take some amount of time to apply. That amount of time depends on the size of the GT. There is no documented time for this. For example, past experimentations with powergating configuration changes seem to indicate a 60~70us delay. We go with 500us as def