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authorDaniel Lezcano <daniel.lezcano@linaro.org>2021-03-12 16:04:07 +0300
committerDaniel Lezcano <daniel.lezcano@linaro.org>2021-10-21 17:03:31 +0300
commit4570ddda43387e5a130dd85e71a1947b0c11da77 (patch)
tree33a01d427251b3ce75245470942c3c811203188f /include/linux/cpuhotplug.h
parent6880fa6c56601bb8ed59df6c30fd390cc5f6dd8f (diff)
downloadlinux-4570ddda43387e5a130dd85e71a1947b0c11da77.tar.xz
powercap/drivers/dtpm: Encapsulate even more the code
In order to increase the self-encapsulation of the dtpm generic code, the following changes are adding a power update ops to the dtpm ops. That allows the generic code to call directly the dtpm backend function to update the power values. The power update function does compute the power characteristics when the function is invoked. In the case of the CPUs, the power consumption depends on the number of online CPUs. The online CPUs mask is not up to date at CPUHP_AP_ONLINE_DYN state in the tear down callback. That is the reason why the online / offline are at separate state. As there is already an existing state for DTPM, this one is only moved to the DEAD state, so there is no addition of new state with these changes. The dtpm node is not removed when the cpu is unplugged. That simplifies the code for the next changes and results in a more self-encapsulated code. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Link: https://lore.kernel.org/r/20210312130411.29833-1-daniel.lezcano@linaro.org
Diffstat (limited to 'include/linux/cpuhotplug.h')
-rw-r--r--include/linux/cpuhotplug.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h
index 832d8a74fa59..ad9a34a80440 100644
--- a/include/linux/cpuhotplug.h
+++ b/include/linux/cpuhotplug.h
@@ -97,6 +97,7 @@ enum cpuhp_state {
CPUHP_LUSTRE_CFS_DEAD,
CPUHP_AP_ARM_CACHE_B15_RAC_DEAD,
CPUHP_PADATA_DEAD,
+ CPUHP_AP_DTPM_CPU_DEAD,
CPUHP_WORKQUEUE_PREP,
CPUHP_POWER_NUMA_PREPARE,
CPUHP_HRTIMERS_PREPARE,
@@ -242,7 +243,6 @@ enum cpuhp_state {
CPUHP_AP_ONLINE_DYN_END = CPUHP_AP_ONLINE_DYN + 30,
CPUHP_AP_X86_HPET_ONLINE,
CPUHP_AP_X86_KVM_CLK_ONLINE,
- CPUHP_AP_DTPM_CPU_ONLINE,
CPUHP_AP_ACTIVE,
CPUHP_ONLINE,
};