linux-kernel - [PATCH 1/2] PM: EM: Add macro em_is

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date: Fri, 8 Mar 2024 14:59:21 +0800
From: PoShao Chen <poshao.chen@...iatek.com>
To: <linux-kernel@...r.kernel.org>, <linux-pm@...r.kernel.org>
CC: <lukasz.luba@....com>, <dietmar.eggemann@....com>, <rafael@...nel.org>,
	<mingo@...nel.org>, <rafael.j.wysocki@...el.com>, <rui.zhang@...el.com>,
	<vincent.guittot@...aro.org>, <daniel.lezcano@...aro.org>,
	<viresh.kumar@...aro.org>, <amit.kachhap@...il.com>,
	<clive.lin@...iatek.com>, <ccj.yeh@...iatek.com>,
	<ching-hao.hsu@...iatek.com>, <poshao.chen@...iatek.com>
Subject: [PATCH 1/2] PM: EM: Add macro em_is_microwatts()

This patch adds a new macro, em_is_microwatts(), which checks if
the EM_PERF_DOMAIN_MICROWATTS flag is set for a given Energy Model.
This macro enables other parts of the kernel, such as cooling
devices, to easily determine the unit of power used by the Energy
Model and to perform the necessary conversions if the values
are provided in microwatts.

Signed-off-by: PoShao Chen <poshao.chen@...iatek.com>
---
 include/linux/energy_model.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/energy_model.h b/include/linux/energy_model.h
index 770755df852f..68145b4368d1 100644
--- a/include/linux/energy_model.h
+++ b/include/linux/energy_model.h
@@ -92,6 +92,7 @@ struct em_perf_domain {
 
 #define em_span_cpus(em) (to_cpumask((em)->cpus))
 #define em_is_artificial(em) ((em)->flags & EM_PERF_DOMAIN_ARTIFICIAL)
+#define em_is_microwatts(em) ((em)->flags & EM_PERF_DOMAIN_MICROWATTS)
 
 #ifdef CONFIG_ENERGY_MODEL
 /*
-- 
2.18.0