drm/msm/devfreq: Add 1ms delay before clamping freq

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Add a short delay before clamping to idle frequency on active->idle
transition.  It takes ~0.5ms to increase the freq again on the next
idle->active transition, so this helps avoid extra freq transitions
on workloads that bounce between CPU and GPU.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20210927230455.1066297-2-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>

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Rob Clark 2021-09-27 16:04:54 -07:00

parent ddb6e37a50

commit 658f4c8296

2 changed files with 37 additions and 8 deletions

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7

drivers/gpu/drm/msm/msm_gpu.h

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38

drivers/gpu/drm/msm/msm_gpu_devfreq.c

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