PM: EM: Support late CPUs booting and capacity adjustment

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The patch adds needed infrastructure to handle the late CPUs boot, which
might change the previous CPUs capacity values. With this changes the new
CPUs which try to register EM will trigger the needed re-calculations for
other CPUs EMs. Thanks to that the em_per_state::performance values will
be aligned with the CPU capacity information after all CPUs finish the
boot and EM registrations.

Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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Lukasz Luba 2024-02-08 11:55:48 +00:00 • committed by Rafael J. Wysocki

parent 5a367f7b70

commit e3f1164fc9

1 changed files with 124 additions and 0 deletions

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kernel/power/energy_model.c

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