From: Changwoo Min Date: Mon, 20 Oct 2025 22:09:14 +0000 (+0900) Subject: PM: EM: Notify an event when the performance domain changes X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a1b17c9ac87a21b677077bc47d7579a2897a13f3;p=thirdparty%2Flinux.git PM: EM: Notify an event when the performance domain changes Send an event to userspace when a performance domain is created or deleted, or its energy model is updated. Signed-off-by: Changwoo Min Reviewed-by: Lukasz Luba Link: https://patch.msgid.link/20251020220914.320832-11-changwoo@igalia.com Signed-off-by: Rafael J. Wysocki --- diff --git a/kernel/power/energy_model.c b/kernel/power/energy_model.c index 9e35aba4b113..e669d5057fca 100644 --- a/kernel/power/energy_model.c +++ b/kernel/power/energy_model.c @@ -352,6 +352,8 @@ int em_dev_update_perf_domain(struct device *dev, em_table_free(old_table); mutex_unlock(&em_pd_mutex); + + em_notify_pd_updated(pd); return 0; } EXPORT_SYMBOL_GPL(em_dev_update_perf_domain); @@ -696,6 +698,7 @@ unlock: list_add_tail(&dev->em_pd->node, &em_pd_list); mutex_unlock(&em_pd_list_mutex); + em_notify_pd_created(dev->em_pd); return ret; } EXPORT_SYMBOL_GPL(em_dev_register_pd_no_update); @@ -718,6 +721,8 @@ void em_dev_unregister_perf_domain(struct device *dev) list_del_init(&dev->em_pd->node); mutex_unlock(&em_pd_list_mutex); + em_notify_pd_deleted(dev->em_pd); + /* * The mutex separates all register/unregister requests and protects * from potential clean-up/setup issues in the debugfs directories.