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When we park RPS, we set the GPU to run at minimum 'idle' frequency. However, as the GPU is idle, we also disable the worker and RPS interrupts - changing the RPS thresholds has no effect, it just incurs extra changes to restore them when we unpark. So on parking, leave the thresholds set to the current power level and so we expect them to be valid for our restart. References: https://gitlab.freedesktop.org/drm/intel/issues/848 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Andi Shyti <andi.shyti@intel.com> Reviewed-by: Andi Shyti <andi.shyti@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191218210545.3975426-2-chris@chris-wilson.co.uk |
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