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Message-ID: <1884854.tdWV9SEqCh@kreacher>
Date: Thu, 23 May 2024 18:00:14 +0200
From: "Rafael J. Wysocki" <rjw@...ysocki.net>
To: Linux PM <linux-pm@...r.kernel.org>
Cc: LKML <linux-kernel@...r.kernel.org>,
"Rafael J. Wysocki" <rafael@...nel.org>, Lukasz Luba <lukasz.luba@....com>,
Daniel Lezcano <daniel.lezcano@...aro.org>,
Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
Zhang Rui <rui.zhang@...el.com>
Subject: [PATCH v1 3/4] thermal: core: Introduce thermal_trip_crossed()
From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Add a helper function called thermal_trip_crossed() to be invoked by
__thermal_zone_device_update() in order to notify user space, the
thermal debug code and the zone governor about trip crossing.
Subsequently, this will also be used in the case when a trip point
becomes invalid after being crossed on the way up.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
drivers/thermal/thermal_core.c | 29 +++++++++++++++++++----------
1 file changed, 19 insertions(+), 10 deletions(-)
Index: linux-pm/drivers/thermal/thermal_core.c
===================================================================
--- linux-pm.orig/drivers/thermal/thermal_core.c
+++ linux-pm/drivers/thermal/thermal_core.c
@@ -467,6 +467,21 @@ static void thermal_governor_trip_crosse
governor->trip_crossed(tz, trip, crossed_up);
}
+static void thermal_trip_crossed(struct thermal_zone_device *tz,
+ const struct thermal_trip *trip,
+ struct thermal_governor *governor,
+ bool crossed_up)
+{
+ if (crossed_up) {
+ thermal_notify_tz_trip_up(tz, trip);
+ thermal_debug_tz_trip_up(tz, trip);
+ } else {
+ thermal_notify_tz_trip_down(tz, trip);
+ thermal_debug_tz_trip_down(tz, trip);
+ }
+ thermal_governor_trip_crossed(governor, tz, trip, crossed_up);
+}
+
static int thermal_trip_notify_cmp(void *ascending, const struct list_head *a,
const struct list_head *b)
{
@@ -506,18 +521,12 @@ void __thermal_zone_device_update(struct
handle_thermal_trip(tz, td, &way_up_list, &way_down_list);
list_sort(&way_up_list, &way_up_list, thermal_trip_notify_cmp);
- list_for_each_entry(td, &way_up_list, notify_list_node) {
- thermal_notify_tz_trip_up(tz, &td->trip);
- thermal_debug_tz_trip_up(tz, &td->trip);
- thermal_governor_trip_crossed(governor, tz, &td->trip, true);
- }
+ list_for_each_entry(td, &way_up_list, notify_list_node)
+ thermal_trip_crossed(tz, &td->trip, governor, true);
list_sort(NULL, &way_down_list, thermal_trip_notify_cmp);
- list_for_each_entry(td, &way_down_list, notify_list_node) {
- thermal_notify_tz_trip_down(tz, &td->trip);
- thermal_debug_tz_trip_down(tz, &td->trip);
- thermal_governor_trip_crossed(governor, tz, &td->trip, false);
- }
+ list_for_each_entry(td, &way_down_list, notify_list_node)
+ thermal_trip_crossed(tz, &td->trip, governor, false);
if (governor->manage)
governor->manage(tz);
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