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There may be special requirements on CPU response time, like if a interrupt is pinned to a CPU, that CPU should not go into excessively deep idle states. For this reason, add a mechanism for adding PM QoS resume latency constraints for individual CPUs and modify the menu governor to take them into account. To that end, extend the device PM QoS pm_qos_resume_latency attribute to CPUs, which is possible, because the exit latency for CPUs is effectively equivalent to the resume latency for devices. Signed-off-by: Alex Shi <alex.shi@linaro.org> Acked-by: Rik van Riel <riel@redhat.com> [ rjw : Subject & changelog ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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| menu.c | ||