From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- drivers/thermal/gov_user_space.c | 56 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 drivers/thermal/gov_user_space.c (limited to 'drivers/thermal/gov_user_space.c') diff --git a/drivers/thermal/gov_user_space.c b/drivers/thermal/gov_user_space.c new file mode 100644 index 0000000000..8bc1c22aaf --- /dev/null +++ b/drivers/thermal/gov_user_space.c @@ -0,0 +1,56 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * user_space.c - A simple user space Thermal events notifier + * + * Copyright (C) 2012 Intel Corp + * Copyright (C) 2012 Durgadoss R + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + */ + +#include +#include + +#include "thermal_core.h" + +static int user_space_bind(struct thermal_zone_device *tz) +{ + pr_info_once("Consider using thermal netlink events interface\n"); + + return 0; +} + +/** + * notify_user_space - Notifies user space about thermal events + * @tz: thermal_zone_device + * @trip: trip point index + * + * This function notifies the user space through UEvents. + */ +static int notify_user_space(struct thermal_zone_device *tz, int trip) +{ + char *thermal_prop[5]; + int i; + + lockdep_assert_held(&tz->lock); + + thermal_prop[0] = kasprintf(GFP_KERNEL, "NAME=%s", tz->type); + thermal_prop[1] = kasprintf(GFP_KERNEL, "TEMP=%d", tz->temperature); + thermal_prop[2] = kasprintf(GFP_KERNEL, "TRIP=%d", trip); + thermal_prop[3] = kasprintf(GFP_KERNEL, "EVENT=%d", tz->notify_event); + thermal_prop[4] = NULL; + kobject_uevent_env(&tz->device.kobj, KOBJ_CHANGE, thermal_prop); + for (i = 0; i < 4; ++i) + kfree(thermal_prop[i]); + + return 0; +} + +static struct thermal_governor thermal_gov_user_space = { + .name = "user_space", + .throttle = notify_user_space, + .bind_to_tz = user_space_bind, +}; +THERMAL_GOVERNOR_DECLARE(thermal_gov_user_space); -- cgit v1.2.3