diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile
index 0c8b84a09b9aa7555b811ebe0da5a9b898ced8de..1bbf0805fb046df323a6ee43f16922c8fb1f9750 100644
--- a/drivers/thermal/Makefile
+++ b/drivers/thermal/Makefile
@@ -5,7 +5,7 @@
obj-$(CONFIG_THERMAL) += thermal_sys.o
thermal_sys-y += thermal_core.o thermal_sysfs.o \
- thermal_helpers.o
+ thermal_helpers.o thermal_netlink.o
# interface to/from other layers providing sensors
thermal_sys-$(CONFIG_THERMAL_HWMON) += thermal_hwmon.o
diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h
index 967b0ba6593e0cd6cda4e45cc83ff8f8617f8db1..4d9455ef0c3292046f071864b9bbc7cbd7d64081 100644
--- a/drivers/thermal/thermal_core.h
+++ b/drivers/thermal/thermal_core.h
@@ -52,6 +52,24 @@ int for_each_thermal_governor(int (*cb)(struct thermal_governor *, void *),
struct thermal_zone_device *thermal_zone_get_by_id(int id);
+/* Netlink notification function */
+int thermal_notify_tz_create(int tz_id, const char *name);
+int thermal_notify_tz_delete(int tz_id);
+int thermal_notify_tz_enable(int tz_id);
+int thermal_notify_tz_disable(int tz_id);
+int thermal_notify_tz_trip_down(int tz_id, int id);
+int thermal_notify_tz_trip_up(int tz_id, int id);
+int thermal_notify_tz_trip_delete(int tz_id, int id);
+int thermal_notify_tz_trip_add(int tz_id, int id, int type,
+ int temp, int hyst);
+int thermal_notify_tz_trip_change(int tz_id, int id, int type,
+ int temp, int hyst);
+int thermal_notify_cdev_state_update(int cdev_id, int state);
+int thermal_notify_cdev_add(int cdev_id, const char *name, int max_state);
+int thermal_notify_cdev_delete(int cdev_id);
+int thermal_notify_tz_gov_change(int tz_id, const char *name);
+int thermal_genl_sampling_temp(int id, int temp);
+
struct thermal_attr {
struct device_attribute attr;
char name[THERMAL_NAME_LENGTH];
diff --git a/drivers/thermal/thermal_netlink.c b/drivers/thermal/thermal_netlink.c
new file mode 100644
index 0000000000000000000000000000000000000000..dd0a3b889674eec86daf315a72515631d322326b
--- /dev/null
+++ b/drivers/thermal/thermal_netlink.c
@@ -0,0 +1,648 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2020 Linaro Limited
+ *
+ * Author: Daniel Lezcano <daniel.lezcano@linaro.org>
+ *
+ * Generic netlink for thermal management framework
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <net/genetlink.h>
+#include <uapi/linux/thermal.h>
+
+#include "thermal_core.h"
+
+static const struct genl_multicast_group thermal_genl_mcgrps[] = {
+ { .name = THERMAL_GENL_SAMPLING_GROUP_NAME, },
+ { .name = THERMAL_GENL_EVENT_GROUP_NAME, },
+};
+
+static const struct nla_policy thermal_genl_policy[THERMAL_GENL_ATTR_MAX + 1] = {
+ /* Thermal zone */
+ [THERMAL_GENL_ATTR_TZ] = { .type = NLA_NESTED },
+ [THERMAL_GENL_ATTR_TZ_ID] = { .type = NLA_U32 },
+ [THERMAL_GENL_ATTR_TZ_TEMP] = { .type = NLA_U32 },
+ [THERMAL_GENL_ATTR_TZ_TRIP] = { .type = NLA_NESTED },
+ [THERMAL_GENL_ATTR_TZ_TRIP_ID] = { .type = NLA_U32 },
+ [THERMAL_GENL_ATTR_TZ_TRIP_TEMP] = { .type = NLA_U32 },
+ [THERMAL_GENL_ATTR_TZ_TRIP_TYPE] = { .type = NLA_U32 },
+ [THERMAL_GENL_ATTR_TZ_TRIP_HYST] = { .type = NLA_U32 },
+ [THERMAL_GENL_ATTR_TZ_MODE] = { .type = NLA_U32 },
+ [THERMAL_GENL_ATTR_TZ_CDEV_WEIGHT] = { .type = NLA_U32 },
+ [THERMAL_GENL_ATTR_TZ_NAME] = { .type = NLA_STRING,
+ .len = THERMAL_NAME_LENGTH },
+ /* Governor(s) */
+ [THERMAL_GENL_ATTR_TZ_GOV] = { .type = NLA_NESTED },
+ [THERMAL_GENL_ATTR_TZ_GOV_NAME] = { .type = NLA_STRING,
+ .len = THERMAL_NAME_LENGTH },
+ /* Cooling devices */
+ [THERMAL_GENL_ATTR_CDEV] = { .type = NLA_NESTED },
+ [THERMAL_GENL_ATTR_CDEV_ID] = { .type = NLA_U32 },
+ [THERMAL_GENL_ATTR_CDEV_CUR_STATE] = { .type = NLA_U32 },
+ [THERMAL_GENL_ATTR_CDEV_MAX_STATE] = { .type = NLA_U32 },
+ [THERMAL_GENL_ATTR_CDEV_NAME] = { .type = NLA_STRING,
+ .len = THERMAL_NAME_LENGTH },
+};
+
+struct param {
+ struct nlattr **attrs;
+ struct sk_buff *msg;
+ const char *name;
+ int tz_id;
+ int cdev_id;
+ int trip_id;
+ int trip_temp;
+ int trip_type;
+ int trip_hyst;
+ int temp;
+ int cdev_state;
+ int cdev_max_state;
+};
+
+typedef int (*cb_t)(struct param *);
+
+static struct genl_family thermal_gnl_family;
+
+/************************** Sampling encoding *******************************/
+
+int thermal_genl_sampling_temp(int id, int temp)
+{
+ struct sk_buff *skb;
+ void *hdr;
+
+ skb = genlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!skb)
+ return -ENOMEM;
+
+ hdr = genlmsg_put(skb, 0, 0, &thermal_gnl_family, 0,
+ THERMAL_GENL_SAMPLING_TEMP);
+ if (!hdr)
+ return -EMSGSIZE;
+
+ if (nla_put_u32(skb, THERMAL_GENL_ATTR_TZ_ID, id))
+ goto out_cancel;
+
+ if (nla_put_u32(skb, THERMAL_GENL_ATTR_TZ_TEMP, temp))
+ goto out_cancel;
+
+ genlmsg_end(skb, hdr);
+
+ genlmsg_multicast(&thermal_gnl_family, skb, 0, 0, GFP_KERNEL);
+
+ return 0;
+out_cancel:
+ genlmsg_cancel(skb, hdr);
+ nlmsg_free(skb);
+
+ return -EMSGSIZE;
+}
+
+/**************************** Event encoding *********************************/
+
+static int thermal_genl_event_tz_create(struct param *p)
+{
+ if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_ID, p->tz_id) ||
+ nla_put_string(p->msg, THERMAL_GENL_ATTR_TZ_NAME, p->name))
+ return -EMSGSIZE;
+
+ return 0;
+}
+
+static int thermal_genl_event_tz(struct param *p)
+{
+ if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_ID, p->tz_id))
+ return -EMSGSIZE;
+
+ return 0;
+}
+
+static int thermal_genl_event_tz_trip_up(struct param *p)
+{
+ if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_ID, p->tz_id) ||
+ nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_TRIP_ID, p->trip_id))
+ return -EMSGSIZE;
+
+ return 0;
+}
+
+static int thermal_genl_event_tz_trip_add(struct param *p)
+{
+ if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_ID, p->tz_id) ||
+ nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_TRIP_ID, p->trip_id) ||
+ nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_TRIP_TYPE, p->trip_type) ||
+ nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_TRIP_TEMP, p->trip_temp) ||
+ nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_TRIP_HYST, p->trip_hyst))
+ return -EMSGSIZE;
+
+ return 0;
+}
+
+static int thermal_genl_event_tz_trip_delete(struct param *p)
+{
+ if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_ID, p->tz_id) ||
+ nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_TRIP_ID, p->trip_id))
+ return -EMSGSIZE;
+
+ return 0;
+}
+
+static int thermal_genl_event_cdev_add(struct param *p)
+{
+ if (nla_put_string(p->msg, THERMAL_GENL_ATTR_CDEV_NAME,
+ p->name) ||
+ nla_put_u32(p->msg, THERMAL_GENL_ATTR_CDEV_ID,
+ p->cdev_id) ||
+ nla_put_u32(p->msg, THERMAL_GENL_ATTR_CDEV_MAX_STATE,
+ p->cdev_max_state))
+ return -EMSGSIZE;
+
+ return 0;
+}
+
+static int thermal_genl_event_cdev_delete(struct param *p)
+{
+ if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_CDEV_ID, p->cdev_id))
+ return -EMSGSIZE;
+
+ return 0;
+}
+
+static int thermal_genl_event_cdev_state_update(struct param *p)
+{
+ if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_CDEV_ID,
+ p->cdev_id) ||
+ nla_put_u32(p->msg, THERMAL_GENL_ATTR_CDEV_CUR_STATE,
+ p->cdev_state))
+ return -EMSGSIZE;
+
+ return 0;
+}
+
+static int thermal_genl_event_gov_change(struct param *p)
+{
+ if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_ID, p->tz_id) ||
+ nla_put_string(p->msg, THERMAL_GENL_ATTR_GOV_NAME, p->name))
+ return -EMSGSIZE;
+
+ return 0;
+}
+
+int thermal_genl_event_tz_delete(struct param *p)
+ __attribute__((alias("thermal_genl_event_tz")));
+
+int thermal_genl_event_tz_enable(struct param *p)
+ __attribute__((alias("thermal_genl_event_tz")));
+
+int thermal_genl_event_tz_disable(struct param *p)
+ __attribute__((alias("thermal_genl_event_tz")));
+
+int thermal_genl_event_tz_trip_down(struct param *p)
+ __attribute__((alias("thermal_genl_event_tz_trip_up")));
+
+int thermal_genl_event_tz_trip_change(struct param *p)
+ __attribute__((alias("thermal_genl_event_tz_trip_add")));
+
+static cb_t event_cb[] = {
+ [THERMAL_GENL_EVENT_TZ_CREATE] = thermal_genl_event_tz_create,
+ [THERMAL_GENL_EVENT_TZ_DELETE] = thermal_genl_event_tz_delete,
+ [THERMAL_GENL_EVENT_TZ_ENABLE] = thermal_genl_event_tz_enable,
+ [THERMAL_GENL_EVENT_TZ_DISABLE] = thermal_genl_event_tz_disable,
+ [THERMAL_GENL_EVENT_TZ_TRIP_UP] = thermal_genl_event_tz_trip_up,
+ [THERMAL_GENL_EVENT_TZ_TRIP_DOWN] = thermal_genl_event_tz_trip_down,
+ [THERMAL_GENL_EVENT_TZ_TRIP_CHANGE] = thermal_genl_event_tz_trip_change,
+ [THERMAL_GENL_EVENT_TZ_TRIP_ADD] = thermal_genl_event_tz_trip_add,
+ [THERMAL_GENL_EVENT_TZ_TRIP_DELETE] = thermal_genl_event_tz_trip_delete,
+ [THERMAL_GENL_EVENT_CDEV_ADD] = thermal_genl_event_cdev_add,
+ [THERMAL_GENL_EVENT_CDEV_DELETE] = thermal_genl_event_cdev_delete,
+ [THERMAL_GENL_EVENT_CDEV_STATE_UPDATE] = thermal_genl_event_cdev_state_update,
+ [THERMAL_GENL_EVENT_TZ_GOV_CHANGE] = thermal_genl_event_gov_change,
+};
+
+/*
+ * Generic netlink event encoding
+ */
+static int thermal_genl_send_event(enum thermal_genl_event event,
+ struct param *p)
+{
+ struct sk_buff *msg;
+ int ret = -EMSGSIZE;
+ void *hdr;
+
+ msg = genlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+ p->msg = msg;
+
+ hdr = genlmsg_put(msg, 0, 0, &thermal_gnl_family, 0, event);
+ if (!hdr)
+ goto out_free_msg;
+
+ ret = event_cb[event](p);
+ if (ret)
+ goto out_cancel_msg;
+
+ genlmsg_end(msg, hdr);
+
+ genlmsg_multicast(&thermal_gnl_family, msg, 0, 1, GFP_KERNEL);
+
+ return 0;
+
+out_cancel_msg:
+ genlmsg_cancel(msg, hdr);
+out_free_msg:
+ nlmsg_free(msg);
+
+ return ret;
+}
+
+int thermal_notify_tz_create(int tz_id, const char *name)
+{
+ struct param p = { .tz_id = tz_id, .name = name };
+
+ return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_CREATE, &p);
+}
+
+int thermal_notify_tz_delete(int tz_id)
+{
+ struct param p = { .tz_id = tz_id };
+
+ return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_DELETE, &p);
+}
+
+int thermal_notify_tz_enable(int tz_id)
+{
+ struct param p = { .tz_id = tz_id };
+
+ return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_ENABLE, &p);
+}
+
+int thermal_notify_tz_disable(int tz_id)
+{
+ struct param p = { .tz_id = tz_id };
+
+ return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_DISABLE, &p);
+}
+
+int thermal_notify_tz_trip_down(int tz_id, int trip_id)
+{
+ struct param p = { .tz_id = tz_id, .trip_id = trip_id };
+
+ return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_TRIP_DOWN, &p);
+}
+
+int thermal_notify_tz_trip_up(int tz_id, int trip_id)
+{
+ struct param p = { .tz_id = tz_id, .trip_id = trip_id };
+
+ return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_TRIP_UP, &p);
+}
+
+int thermal_notify_tz_trip_add(int tz_id, int trip_id, int trip_type,
+ int trip_temp, int trip_hyst)
+{
+ struct param p = { .tz_id = tz_id, .trip_id = trip_id,
+ .trip_type = trip_type, .trip_temp = trip_temp,
+ .trip_hyst = trip_hyst };
+
+ return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_TRIP_ADD, &p);
+}
+
+int thermal_notify_tz_trip_delete(int tz_id, int trip_id)
+{
+ struct param p = { .tz_id = tz_id, .trip_id = trip_id };
+
+ return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_TRIP_DELETE, &p);
+}
+
+int thermal_notify_tz_trip_change(int tz_id, int trip_id, int trip_type,
+ int trip_temp, int trip_hyst)
+{
+ struct param p = { .tz_id = tz_id, .trip_id = trip_id,
+ .trip_type = trip_type, .trip_temp = trip_temp,
+ .trip_hyst = trip_hyst };
+
+ return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_TRIP_CHANGE, &p);
+}
+
+int thermal_notify_cdev_state_update(int cdev_id, int cdev_state)
+{
+ struct param p = { .cdev_id = cdev_id, .cdev_state = cdev_state };
+
+ return thermal_genl_send_event(THERMAL_GENL_EVENT_CDEV_STATE_UPDATE, &p);
+}
+
+int thermal_notify_cdev_add(int cdev_id, const char *name, int cdev_max_state)
+{
+ struct param p = { .cdev_id = cdev_id, .name = name,
+ .cdev_max_state = cdev_max_state };
+
+ return thermal_genl_send_event(THERMAL_GENL_EVENT_CDEV_ADD, &p);
+}
+
+int thermal_notify_cdev_delete(int cdev_id)
+{
+ struct param p = { .cdev_id = cdev_id };
+
+ return thermal_genl_send_event(THERMAL_GENL_EVENT_CDEV_DELETE, &p);
+}
+
+int thermal_notify_tz_gov_change(int tz_id, const char *name)
+{
+ struct param p = { .tz_id = tz_id, .name = name };
+
+ return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_GOV_CHANGE, &p);
+}
+
+/*************************** Command encoding ********************************/
+
+static int __thermal_genl_cmd_tz_get_id(struct thermal_zone_device *tz,
+ void *data)
+{
+ struct sk_buff *msg = data;
+
+ if (nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_ID, tz->id) ||
+ nla_put_string(msg, THERMAL_GENL_ATTR_TZ_NAME, tz->type))
+ return -EMSGSIZE;
+
+ return 0;
+}
+
+static int thermal_genl_cmd_tz_get_id(struct param *p)
+{
+ struct sk_buff *msg = p->msg;
+ struct nlattr *start_tz;
+ int ret;
+
+ start_tz = nla_nest_start(msg, THERMAL_GENL_ATTR_TZ);
+ if (!start_tz)
+ return -EMSGSIZE;
+
+ ret = for_each_thermal_zone(__thermal_genl_cmd_tz_get_id, msg);
+ if (ret)
+ goto out_cancel_nest;
+
+ nla_nest_end(msg, start_tz);
+
+ return 0;
+
+out_cancel_nest:
+ nla_nest_cancel(msg, start_tz);
+
+ return ret;
+}
+
+static int thermal_genl_cmd_tz_get_trip(struct param *p)
+{
+ struct sk_buff *msg = p->msg;
+ struct thermal_zone_device *tz;
+ struct nlattr *start_trip;
+ int i, id;
+
+ if (!p->attrs[THERMAL_GENL_ATTR_TZ_ID])
+ return -EINVAL;
+
+ id = nla_get_u32(p->attrs[THERMAL_GENL_ATTR_TZ_ID]);
+
+ tz = thermal_zone_get_by_id(id);
+ if (!tz)
+ return -EINVAL;
+
+ start_trip = nla_nest_start(msg, THERMAL_GENL_ATTR_TZ_TRIP);
+ if (!start_trip)
+ return -EMSGSIZE;
+
+ mutex_lock(&tz->lock);
+
+ for (i = 0; i < tz->trips; i++) {
+
+ enum thermal_trip_type type;
+ int temp, hyst;
+
+ tz->ops->get_trip_type(tz, i, &type);
+ tz->ops->get_trip_temp(tz, i, &temp);
+ tz->ops->get_trip_hyst(tz, i, &hyst);
+
+ if (nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_ID, i) ||
+ nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_TYPE, type) ||
+ nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_TEMP, temp) ||
+ nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_HYST, hyst))
+ goto out_cancel_nest;
+ }
+
+ mutex_unlock(&tz->lock);
+
+ nla_nest_end(msg, start_trip);
+
+ return 0;
+
+out_cancel_nest:
+ mutex_unlock(&tz->lock);
+
+ return -EMSGSIZE;
+}
+
+static int thermal_genl_cmd_tz_get_temp(struct param *p)
+{
+ struct sk_buff *msg = p->msg;
+ struct thermal_zone_device *tz;
+ int temp, ret, id;
+
+ if (!p->attrs[THERMAL_GENL_ATTR_TZ_ID])
+ return -EINVAL;
+
+ id = nla_get_u32(p->attrs[THERMAL_GENL_ATTR_TZ_ID]);
+
+ tz = thermal_zone_get_by_id(id);
+ if (!tz)
+ return -EINVAL;
+
+ ret = thermal_zone_get_temp(tz, &temp);
+ if (ret)
+ return ret;
+
+ if (nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_ID, id) ||
+ nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TEMP, temp))
+ return -EMSGSIZE;
+
+ return 0;
+}
+
+static int thermal_genl_cmd_tz_get_gov(struct param *p)
+{
+ struct sk_buff *msg = p->msg;
+ struct thermal_zone_device *tz;
+ int id, ret = 0;
+
+ if (!p->attrs[THERMAL_GENL_ATTR_TZ_ID])
+ return -EINVAL;
+
+ id = nla_get_u32(p->attrs[THERMAL_GENL_ATTR_TZ_ID]);
+
+ tz = thermal_zone_get_by_id(id);
+ if (!tz)
+ return -EINVAL;
+
+ mutex_lock(&tz->lock);
+
+ if (nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_ID, id) ||
+ nla_put_string(msg, THERMAL_GENL_ATTR_TZ_GOV_NAME,
+ tz->governor->name))
+ ret = -EMSGSIZE;
+
+ mutex_unlock(&tz->lock);
+
+ return ret;
+}
+
+static int __thermal_genl_cmd_cdev_get(struct thermal_cooling_device *cdev,
+ void *data)
+{
+ struct sk_buff *msg = data;
+
+ if (nla_put_u32(msg, THERMAL_GENL_ATTR_CDEV_ID, cdev->id))
+ return -EMSGSIZE;
+
+ if (nla_put_string(msg, THERMAL_GENL_ATTR_CDEV_NAME, cdev->type))
+ return -EMSGSIZE;
+
+ return 0;
+}
+
+static int thermal_genl_cmd_cdev_get(struct param *p)
+{
+ struct sk_buff *msg = p->msg;
+ struct nlattr *start_cdev;
+ int ret;
+
+ start_cdev = nla_nest_start(msg, THERMAL_GENL_ATTR_CDEV);
+ if (!start_cdev)
+ return -EMSGSIZE;
+
+ ret = for_each_thermal_cooling_device(__thermal_genl_cmd_cdev_get, msg);
+ if (ret)
+ goto out_cancel_nest;
+
+ nla_nest_end(msg, start_cdev);
+
+ return 0;
+out_cancel_nest:
+ nla_nest_cancel(msg, start_cdev);
+
+ return ret;
+}
+
+static cb_t cmd_cb[] = {
+ [THERMAL_GENL_CMD_TZ_GET_ID] = thermal_genl_cmd_tz_get_id,
+ [THERMAL_GENL_CMD_TZ_GET_TRIP] = thermal_genl_cmd_tz_get_trip,
+ [THERMAL_GENL_CMD_TZ_GET_TEMP] = thermal_genl_cmd_tz_get_temp,
+ [THERMAL_GENL_CMD_TZ_GET_GOV] = thermal_genl_cmd_tz_get_gov,
+ [THERMAL_GENL_CMD_CDEV_GET] = thermal_genl_cmd_cdev_get,
+};
+
+static int thermal_genl_cmd_dumpit(struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ struct param p = { .msg = skb };
+ const struct genl_dumpit_info *info = genl_dumpit_info(cb);
+ int cmd = info->ops->cmd;
+ int ret = -EMSGSIZE;
+ void *hdr;
+
+ hdr = genlmsg_put(skb, 0, 0, &thermal_gnl_family, 0, cmd);
+ if (!hdr)
+ return -EMSGSIZE;
+
+ ret = cmd_cb[cmd](&p);
+ if (ret)
+ goto out_cancel_msg;
+
+ genlmsg_end(skb, hdr);
+
+ return 0;
+
+out_cancel_msg:
+ genlmsg_cancel(skb, hdr);
+
+ return ret;
+}
+
+static int thermal_genl_cmd_doit(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct param p = { .attrs = info->attrs };
+ struct sk_buff *msg;
+ void *hdr;
+ int cmd = info->genlhdr->cmd;
+ int ret = -EMSGSIZE;
+
+ msg = genlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+ p.msg = msg;
+
+ hdr = genlmsg_put_reply(msg, info, &thermal_gnl_family, 0, cmd);
+ if (!hdr)
+ goto out_free_msg;
+
+ ret = cmd_cb[cmd](&p);
+ if (ret)
+ goto out_cancel_msg;
+
+ genlmsg_end(msg, hdr);
+
+ return genlmsg_reply(msg, info);
+
+out_cancel_msg:
+ genlmsg_cancel(msg, hdr);
+out_free_msg:
+ nlmsg_free(msg);
+
+ return ret;
+}
+
+static const struct genl_ops thermal_genl_ops[] = {
+ {
+ .cmd = THERMAL_GENL_CMD_TZ_GET_ID,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .dumpit = thermal_genl_cmd_dumpit,
+ },
+ {
+ .cmd = THERMAL_GENL_CMD_TZ_GET_TRIP,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = thermal_genl_cmd_doit,
+ },
+ {
+ .cmd = THERMAL_GENL_CMD_TZ_GET_TEMP,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = thermal_genl_cmd_doit,
+ },
+ {
+ .cmd = THERMAL_GENL_CMD_TZ_GET_GOV,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = thermal_genl_cmd_doit,
+ },
+ {
+ .cmd = THERMAL_GENL_CMD_CDEV_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .dumpit = thermal_genl_cmd_dumpit,
+ },
+};
+
+static struct genl_family thermal_gnl_family __ro_after_init = {
+ .hdrsize = 0,
+ .name = THERMAL_GENL_FAMILY_NAME,
+ .version = THERMAL_GENL_VERSION,
+ .maxattr = THERMAL_GENL_ATTR_MAX,
+ .policy = thermal_genl_policy,
+ .ops = thermal_genl_ops,
+ .n_ops = ARRAY_SIZE(thermal_genl_ops),
+ .mcgrps = thermal_genl_mcgrps,
+ .n_mcgrps = ARRAY_SIZE(thermal_genl_mcgrps),
+};
+
+static int __init thermal_netlink_init(void)
+{
+ return genl_register_family(&thermal_gnl_family);
+}
+core_initcall(thermal_netlink_init);
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index 108251f23e5c7b9e5e4551361cf52f101e12cdce..42ef807e5d84eb6dc2457a9c13f15342ff18f4ed 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -37,18 +37,6 @@ struct thermal_cooling_device;
struct thermal_instance;
struct thermal_attr;
-enum thermal_device_mode {
- THERMAL_DEVICE_DISABLED = 0,
- THERMAL_DEVICE_ENABLED,
-};
-
-enum thermal_trip_type {
- THERMAL_TRIP_ACTIVE = 0,
- THERMAL_TRIP_PASSIVE,
- THERMAL_TRIP_HOT,
- THERMAL_TRIP_CRITICAL,
-};
-
enum thermal_trend {
THERMAL_TREND_STABLE, /* temperature is stable */
THERMAL_TREND_RAISING, /* temperature is raising */
@@ -303,11 +291,6 @@ struct thermal_zone_params {
int offset;
};
-struct thermal_genl_event {
- u32 orig;
- enum events event;
-};
-
/**
* struct thermal_zone_of_device_ops - scallbacks for handling DT based zones
*
diff --git a/include/uapi/linux/thermal.h b/include/uapi/linux/thermal.h
index 96218378dda8c581115b93e640b3d718d3f0f5ac..c105054cbb57acb9dbef29790822c9f6830a0969 100644
--- a/include/uapi/linux/thermal.h
+++ b/include/uapi/linux/thermal.h
@@ -4,31 +4,86 @@
#define THERMAL_NAME_LENGTH 20
-/* Adding event notification support elements */
-#define THERMAL_GENL_FAMILY_NAME "thermal_event"
-#define THERMAL_GENL_VERSION 0x01
-#define THERMAL_GENL_MCAST_GROUP_NAME "thermal_mc_grp"
-
-/* Events supported by Thermal Netlink */
-enum events {
- THERMAL_AUX0,
- THERMAL_AUX1,
- THERMAL_CRITICAL,
- THERMAL_DEV_FAULT,
+enum thermal_device_mode {
+ THERMAL_DEVICE_DISABLED = 0,
+ THERMAL_DEVICE_ENABLED,
+};
+
+enum thermal_trip_type {
+ THERMAL_TRIP_ACTIVE = 0,
+ THERMAL_TRIP_PASSIVE,
+ THERMAL_TRIP_HOT,
+ THERMAL_TRIP_CRITICAL,
};
-/* attributes of thermal_genl_family */
-enum {
+/* Adding event notification support elements */
+#define THERMAL_GENL_FAMILY_NAME "thermal"
+#define THERMAL_GENL_VERSION 0x01
+#define THERMAL_GENL_SAMPLING_GROUP_NAME "sampling"
+#define THERMAL_GENL_EVENT_GROUP_NAME "event"
+
+/* Attributes of thermal_genl_family */
+enum thermal_genl_attr {
THERMAL_GENL_ATTR_UNSPEC,
- THERMAL_GENL_ATTR_EVENT,
+ THERMAL_GENL_ATTR_TZ,
+ THERMAL_GENL_ATTR_TZ_ID,
+ THERMAL_GENL_ATTR_TZ_TEMP,
+ THERMAL_GENL_ATTR_TZ_TRIP,
+ THERMAL_GENL_ATTR_TZ_TRIP_ID,
+ THERMAL_GENL_ATTR_TZ_TRIP_TYPE,
+ THERMAL_GENL_ATTR_TZ_TRIP_TEMP,
+ THERMAL_GENL_ATTR_TZ_TRIP_HYST,
+ THERMAL_GENL_ATTR_TZ_MODE,
+ THERMAL_GENL_ATTR_TZ_NAME,
+ THERMAL_GENL_ATTR_TZ_CDEV_WEIGHT,
+ THERMAL_GENL_ATTR_TZ_GOV,
+ THERMAL_GENL_ATTR_TZ_GOV_NAME,
+ THERMAL_GENL_ATTR_CDEV,
+ THERMAL_GENL_ATTR_CDEV_ID,
+ THERMAL_GENL_ATTR_CDEV_CUR_STATE,
+ THERMAL_GENL_ATTR_CDEV_MAX_STATE,
+ THERMAL_GENL_ATTR_CDEV_NAME,
+ THERMAL_GENL_ATTR_GOV_NAME,
+
__THERMAL_GENL_ATTR_MAX,
};
#define THERMAL_GENL_ATTR_MAX (__THERMAL_GENL_ATTR_MAX - 1)
-/* commands supported by the thermal_genl_family */
-enum {
+enum thermal_genl_sampling {
+ THERMAL_GENL_SAMPLING_TEMP,
+ __THERMAL_GENL_SAMPLING_MAX,
+};
+#define THERMAL_GENL_SAMPLING_MAX (__THERMAL_GENL_SAMPLING_MAX - 1)
+
+/* Events of thermal_genl_family */
+enum thermal_genl_event {
+ THERMAL_GENL_EVENT_UNSPEC,
+ THERMAL_GENL_EVENT_TZ_CREATE, /* Thermal zone creation */
+ THERMAL_GENL_EVENT_TZ_DELETE, /* Thermal zone deletion */
+ THERMAL_GENL_EVENT_TZ_DISABLE, /* Thermal zone disabed */
+ THERMAL_GENL_EVENT_TZ_ENABLE, /* Thermal zone enabled */
+ THERMAL_GENL_EVENT_TZ_TRIP_UP, /* Trip point crossed the way up */
+ THERMAL_GENL_EVENT_TZ_TRIP_DOWN, /* Trip point crossed the way down */
+ THERMAL_GENL_EVENT_TZ_TRIP_CHANGE, /* Trip point changed */
+ THERMAL_GENL_EVENT_TZ_TRIP_ADD, /* Trip point added */
+ THERMAL_GENL_EVENT_TZ_TRIP_DELETE, /* Trip point deleted */
+ THERMAL_GENL_EVENT_CDEV_ADD, /* Cdev bound to the thermal zone */
+ THERMAL_GENL_EVENT_CDEV_DELETE, /* Cdev unbound */
+ THERMAL_GENL_EVENT_CDEV_STATE_UPDATE, /* Cdev state updated */
+ THERMAL_GENL_EVENT_TZ_GOV_CHANGE, /* Governor policy changed */
+ __THERMAL_GENL_EVENT_MAX,
+};
+#define THERMAL_GENL_EVENT_MAX (__THERMAL_GENL_EVENT_MAX - 1)
+
+/* Commands supported by the thermal_genl_family */
+enum thermal_genl_cmd {
THERMAL_GENL_CMD_UNSPEC,
- THERMAL_GENL_CMD_EVENT,
+ THERMAL_GENL_CMD_TZ_GET_ID, /* List of thermal zones id */
+ THERMAL_GENL_CMD_TZ_GET_TRIP, /* List of thermal trips */
+ THERMAL_GENL_CMD_TZ_GET_TEMP, /* Get the thermal zone temperature */
+ THERMAL_GENL_CMD_TZ_GET_GOV, /* Get the thermal zone governor */
+ THERMAL_GENL_CMD_TZ_GET_MODE, /* Get the thermal zone mode */
+ THERMAL_GENL_CMD_CDEV_GET, /* List of cdev id */
__THERMAL_GENL_CMD_MAX,
};
#define THERMAL_GENL_CMD_MAX (__THERMAL_GENL_CMD_MAX - 1)