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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2023-01-30 16:13:26 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2023-01-30 16:13:26 +0300
commitf364beb5b6734cefbfa01a79aacdf6c086082e6a (patch)
treec02221b73a3dcefb68c5bc1303094ba6f4e5108b /drivers/thermal
parent79b2027097dd3046ff95a2701af441405f1ff298 (diff)
parentf4118dbe61bb30038ca7f3ecaf333cabc9c54141 (diff)
downloadlinux-f364beb5b6734cefbfa01a79aacdf6c086082e6a.tar.xz
Merge branch 'thermal-intel'
Merge changes affecting thermal control on Intel platforms for 6.3-rc1: - Consolidate code accessing the Intel TCC (Thermal Control Circuitry) MSRs by introducing library functions for that and making the TCC-related code in thermal drivers use them (Zhang Rui). - Enhance the x86_pkg_temp_thermal driver to support dynamic tjmax changes (Zhang Rui). - Address an "unsigned expression compared with zero" warning in the intel_soc_dts_iosf thermal driver (Yang Li). - Update comments regarding two functions in the Intel Menlow thermal driver (Deming Wang). - Use sysfs_emit_at() instead of scnprintf() in the int340x thermal driver (ye xingchen). - Make the intel_pch thermal driver support the Wellsburg PCH (Tim Zimmermann). - Add trip point initialization helper functions for ACPI-defined trip points and modify two thermal drivers to use them (Rafael Wysocki, Daniel Lezcano). - Modify the intel_pch and processor_thermal_device_pci thermal drivers use generic trip point tables instead of thermal zone trip point callbacks (Daniel Lezcano). - Add production mode attribute sysfs attribute to the int340x thermal driver (Srinivas Pandruvada). - Rework dynamic trip point updates handling and locking in the int340x thermal driver (Rafael Wysocki). - Make the int340x thermal driver use a generic trip points table instead of thermal zone trip point callbacks (Rafael Wysocki, Daniel Lezcano). * thermal-intel: thermal: intel: int340x: Use generic trip points table thermal: intel: int340x: Use zone lock for synchronization thermal: intel: int340x: Rework updating trip points thermal: ACPI: Initialize trips if temperature is out of range thermal: intel: processor_thermal_device_pci: Use generic trip point thermal: intel: int340x: Add production mode attribute thermal: intel: intel_pch: Use generic trip points thermal: ACPI: Add ACPI trip point routines thermal: intel: intel_pch: Add support for Wellsburg PCH thermal: int340x_thermal: Use sysfs_emit_at() instead of scnprintf() thermal: intel: menlow: Update function descriptions thermal: intel: Fix unsigned comparison with less than zero thermal/x86_pkg_temp_thermal: Add support for handling dynamic tjmax thermal/x86_pkg_temp_thermal: Use Intel TCC library thermal/intel/intel_tcc_cooling: Use Intel TCC library thermal/intel/intel_soc_dts_iosf: Use Intel TCC library thermal/int340x/processor_thermal: Use Intel TCC library thermal/intel: Introduce Intel TCC library
Diffstat (limited to 'drivers/thermal')
-rw-r--r--drivers/thermal/Kconfig4
-rw-r--r--drivers/thermal/Makefile1
-rw-r--r--drivers/thermal/intel/Kconfig8
-rw-r--r--drivers/thermal/intel/Makefile1
-rw-r--r--drivers/thermal/intel/int340x_thermal/Kconfig2
-rw-r--r--drivers/thermal/intel/int340x_thermal/int3400_thermal.c58
-rw-r--r--drivers/thermal/intel/int340x_thermal/int3403_thermal.c2
-rw-r--r--drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c254
-rw-r--r--drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h13
-rw-r--r--drivers/thermal/intel/int340x_thermal/processor_thermal_device.c119
-rw-r--r--drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c53
-rw-r--r--drivers/thermal/intel/intel_menlow.c12
-rw-r--r--drivers/thermal/intel/intel_pch_thermal.c96
-rw-r--r--drivers/thermal/intel/intel_soc_dts_iosf.c35
-rw-r--r--drivers/thermal/intel/intel_tcc.c139
-rw-r--r--drivers/thermal/intel/intel_tcc_cooling.c37
-rw-r--r--drivers/thermal/intel/x86_pkg_temp_thermal.c60
-rw-r--r--drivers/thermal/thermal_acpi.c151
18 files changed, 568 insertions, 477 deletions
diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
index e052dae614eb..eaeb2b2ee6e9 100644
--- a/drivers/thermal/Kconfig
+++ b/drivers/thermal/Kconfig
@@ -76,6 +76,10 @@ config THERMAL_OF
Say 'Y' here if you need to build thermal infrastructure
based on device tree.
+config THERMAL_ACPI
+ depends on ACPI
+ bool
+
config THERMAL_WRITABLE_TRIPS
bool "Enable writable trip points"
help
diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile
index 2506c6c8ca83..60f0dfa9aae2 100644
--- a/drivers/thermal/Makefile
+++ b/drivers/thermal/Makefile
@@ -13,6 +13,7 @@ thermal_sys-$(CONFIG_THERMAL_NETLINK) += thermal_netlink.o
# interface to/from other layers providing sensors
thermal_sys-$(CONFIG_THERMAL_HWMON) += thermal_hwmon.o
thermal_sys-$(CONFIG_THERMAL_OF) += thermal_of.o
+thermal_sys-$(CONFIG_THERMAL_ACPI) += thermal_acpi.o
# governors
thermal_sys-$(CONFIG_THERMAL_GOV_FAIR_SHARE) += gov_fair_share.o
diff --git a/drivers/thermal/intel/Kconfig b/drivers/thermal/intel/Kconfig
index f0c845679250..e50fd260484a 100644
--- a/drivers/thermal/intel/Kconfig
+++ b/drivers/thermal/intel/Kconfig
@@ -12,11 +12,16 @@ config X86_THERMAL_VECTOR
def_bool y
depends on X86 && CPU_SUP_INTEL && X86_LOCAL_APIC
+config INTEL_TCC
+ bool
+ depends on X86
+
config X86_PKG_TEMP_THERMAL
tristate "X86 package temperature thermal driver"
depends on X86_THERMAL_VECTOR
select THERMAL_GOV_USER_SPACE
select THERMAL_WRITABLE_TRIPS
+ select INTEL_TCC
default m
help
Enable this to register CPU digital sensor for package temperature as
@@ -28,6 +33,7 @@ config INTEL_SOC_DTS_IOSF_CORE
tristate
depends on X86 && PCI
select IOSF_MBI
+ select INTEL_TCC
help
This is becoming a common feature for Intel SoCs to expose the additional
digital temperature sensors (DTSs) using side band interface (IOSF). This
@@ -75,6 +81,7 @@ config INTEL_BXT_PMIC_THERMAL
config INTEL_PCH_THERMAL
tristate "Intel PCH Thermal Reporting Driver"
depends on X86 && PCI
+ select THERMAL_ACPI if ACPI
help
Enable this to support thermal reporting on certain intel PCHs.
Thermal reporting device will provide temperature reading,
@@ -83,6 +90,7 @@ config INTEL_PCH_THERMAL
config INTEL_TCC_COOLING
tristate "Intel TCC offset cooling Driver"
depends on X86
+ select INTEL_TCC
help
Enable this to support system cooling by adjusting the effective TCC
activation temperature via the TCC Offset register, which is widely
diff --git a/drivers/thermal/intel/Makefile b/drivers/thermal/intel/Makefile
index 9a8d8054f316..5d8833c82ab6 100644
--- a/drivers/thermal/intel/Makefile
+++ b/drivers/thermal/intel/Makefile
@@ -2,6 +2,7 @@
#
# Makefile for various Intel thermal drivers.
+obj-$(CONFIG_INTEL_TCC) += intel_tcc.o
obj-$(CONFIG_INTEL_POWERCLAMP) += intel_powerclamp.o
obj-$(CONFIG_X86_PKG_TEMP_THERMAL) += x86_pkg_temp_thermal.o
obj-$(CONFIG_INTEL_SOC_DTS_IOSF_CORE) += intel_soc_dts_iosf.o
diff --git a/drivers/thermal/intel/int340x_thermal/Kconfig b/drivers/thermal/intel/int340x_thermal/Kconfig
index 5d046de96a5d..300ea53e9b33 100644
--- a/drivers/thermal/intel/int340x_thermal/Kconfig
+++ b/drivers/thermal/intel/int340x_thermal/Kconfig
@@ -9,7 +9,9 @@ config INT340X_THERMAL
select THERMAL_GOV_USER_SPACE
select ACPI_THERMAL_REL
select ACPI_FAN
+ select THERMAL_ACPI
select INTEL_SOC_DTS_IOSF_CORE
+ select INTEL_TCC
select PROC_THERMAL_MMIO_RAPL if POWERCAP
help
Newer laptops and tablets that use ACPI may have thermal sensors and
diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
index db8a6f63657d..d0295123cc3e 100644
--- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
+++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
@@ -60,6 +60,7 @@ struct int3400_thermal_priv {
int odvp_count;
int *odvp;
u32 os_uuid_mask;
+ int production_mode;
struct odvp_attr *odvp_attrs;
};
@@ -130,10 +131,7 @@ static ssize_t available_uuids_show(struct device *dev,
for (i = 0; i < INT3400_THERMAL_MAXIMUM_UUID; i++) {
if (priv->uuid_bitmap & (1 << i))
- length += scnprintf(&buf[length],
- PAGE_SIZE - length,
- "%s\n",
- int3400_thermal_uuids[i]);
+ length += sysfs_emit_at(buf, length, int3400_thermal_uuids[i]);
}
return length;
@@ -151,10 +149,7 @@ static ssize_t current_uuid_show(struct device *dev,
for (i = 0; i <= INT3400_THERMAL_CRITICAL; i++) {
if (priv->os_uuid_mask & BIT(i))
- length += scnprintf(&buf[length],
- PAGE_SIZE - length,
- "%s\n",
- int3400_thermal_uuids[i]);
+ length += sysfs_emit_at(buf, length, int3400_thermal_uuids[i]);
}
if (length)
@@ -315,6 +310,44 @@ end:
return result;
}
+static ssize_t production_mode_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct int3400_thermal_priv *priv = dev_get_drvdata(dev);
+
+ return sysfs_emit(buf, "%d\n", priv->production_mode);
+}
+
+static DEVICE_ATTR_RO(production_mode);
+
+static int production_mode_init(struct int3400_thermal_priv *priv)
+{
+ unsigned long long mode;
+ acpi_status status;
+ int ret;
+
+ priv->production_mode = -1;
+
+ status = acpi_evaluate_integer(priv->adev->handle, "DCFG", NULL, &mode);
+ /* If the method is not present, this is not an error */
+ if (ACPI_FAILURE(status))
+ return 0;
+
+ ret = sysfs_create_file(&priv->pdev->dev.kobj, &dev_attr_production_mode.attr);
+ if (ret)
+ return ret;
+
+ priv->production_mode = mode;
+
+ return 0;
+}
+
+static void production_mode_exit(struct int3400_thermal_priv *priv)
+{
+ if (priv->production_mode >= 0)
+ sysfs_remove_file(&priv->pdev->dev.kobj, &dev_attr_production_mode.attr);
+}
+
static ssize_t odvp_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
@@ -610,8 +643,15 @@ static int int3400_thermal_probe(struct platform_device *pdev)
if (result)
goto free_sysfs;
+ result = production_mode_init(priv);
+ if (result)
+ goto free_notify;
+
return 0;
+free_notify:
+ acpi_remove_notify_handler(priv->adev->handle, ACPI_DEVICE_NOTIFY,
+ int3400_notify);
free_sysfs:
cleanup_odvp(priv);
if (!ZERO_OR_NULL_PTR(priv->data_vault)) {
@@ -638,6 +678,8 @@ static int int3400_thermal_remove(struct platform_device *pdev)
{
struct int3400_thermal_priv *priv = platform_get_drvdata(pdev);
+ production_mode_exit(priv);
+
acpi_remove_notify_handler(
priv->adev->handle, ACPI_DEVICE_NOTIFY,
int3400_notify);
diff --git a/drivers/thermal/intel/int340x_thermal/int3403_thermal.c b/drivers/thermal/intel/int340x_thermal/int3403_thermal.c
index 71d084c4c456..e418d270bc76 100644
--- a/drivers/thermal/intel/int340x_thermal/int3403_thermal.c
+++ b/drivers/thermal/intel/int340x_thermal/int3403_thermal.c
@@ -69,7 +69,7 @@ static void int3403_notify(acpi_handle handle,
THERMAL_TRIP_VIOLATED);
break;
case INT3403_PERF_TRIP_POINT_CHANGED:
- int340x_thermal_read_trips(obj->int340x_zone);
+ int340x_thermal_update_trips(obj->int340x_zone);
int340x_thermal_zone_device_update(obj->int340x_zone,
THERMAL_TRIP_CHANGED);
break;
diff --git a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
index 40c1e8a8bc1b..09b1b51eb6a5 100644
--- a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
+++ b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
@@ -37,73 +37,6 @@ static int int340x_thermal_get_zone_temp(struct thermal_zone_device *zone,
return 0;
}
-static int int340x_thermal_get_trip_temp(struct thermal_zone_device *zone,
- int trip, int *temp)
-{
- struct int34x_thermal_zone *d = zone->devdata;
- int i, ret = 0;
-
- mutex_lock(&d->trip_mutex);
-
- if (trip < d->aux_trip_nr)
- *temp = d->aux_trips[trip];
- else if (trip == d->crt_trip_id)
- *temp = d->crt_temp;
- else if (trip == d->psv_trip_id)
- *temp = d->psv_temp;
- else if (trip == d->hot_trip_id)
- *temp = d->hot_temp;
- else {
- for (i = 0; i < INT340X_THERMAL_MAX_ACT_TRIP_COUNT; i++) {
- if (d->act_trips[i].valid &&
- d->act_trips[i].id == trip) {
- *temp = d->act_trips[i].temp;
- break;
- }
- }
- if (i == INT340X_THERMAL_MAX_ACT_TRIP_COUNT)
- ret = -EINVAL;
- }
-
- mutex_unlock(&d->trip_mutex);
-
- return ret;
-}
-
-static int int340x_thermal_get_trip_type(struct thermal_zone_device *zone,
- int trip,
- enum thermal_trip_type *type)
-{
- struct int34x_thermal_zone *d = zone->devdata;
- int i, ret = 0;
-
- mutex_lock(&d->trip_mutex);
-
- if (trip < d->aux_trip_nr)
- *type = THERMAL_TRIP_PASSIVE;
- else if (trip == d->crt_trip_id)
- *type = THERMAL_TRIP_CRITICAL;
- else if (trip == d->hot_trip_id)
- *type = THERMAL_TRIP_HOT;
- else if (trip == d->psv_trip_id)
- *type = THERMAL_TRIP_PASSIVE;
- else {
- for (i = 0; i < INT340X_THERMAL_MAX_ACT_TRIP_COUNT; i++) {
- if (d->act_trips[i].valid &&
- d->act_trips[i].id == trip) {
- *type = THERMAL_TRIP_ACTIVE;
- break;
- }
- }
- if (i == INT340X_THERMAL_MAX_ACT_TRIP_COUNT)
- ret = -EINVAL;
- }
-
- mutex_unlock(&d->trip_mutex);
-
- return ret;
-}
-
static int int340x_thermal_set_trip_temp(struct thermal_zone_device *zone,
int trip, int temp)
{
@@ -117,25 +50,6 @@ static int int340x_thermal_set_trip_temp(struct thermal_zone_device *zone,
if (ACPI_FAILURE(status))
return -EIO;
- d->aux_trips[trip] = temp;
-
- return 0;
-}
-
-
-static int int340x_thermal_get_trip_hyst(struct thermal_zone_device *zone,
- int trip, int *temp)
-{
- struct int34x_thermal_zone *d = zone->devdata;
- acpi_status status;
- unsigned long long hyst;
-
- status = acpi_evaluate_integer(d->adev->handle, "GTSH", NULL, &hyst);
- if (ACPI_FAILURE(status))
- *temp = 0;
- else
- *temp = hyst * 100;
-
return 0;
}
@@ -146,67 +60,39 @@ static void int340x_thermal_critical(struct thermal_zone_device *zone)
static struct thermal_zone_device_ops int340x_thermal_zone_ops = {
.get_temp = int340x_thermal_get_zone_temp,
- .get_trip_temp = int340x_thermal_get_trip_temp,
- .get_trip_type = int340x_thermal_get_trip_type,
.set_trip_temp = int340x_thermal_set_trip_temp,
- .get_trip_hyst = int340x_thermal_get_trip_hyst,
.critical = int340x_thermal_critical,
};
-static int int340x_thermal_get_trip_config(acpi_handle handle, char *name,
- int *temp)
+static int int340x_thermal_read_trips(struct acpi_device *zone_adev,
+ struct thermal_trip *zone_trips,
+ int trip_cnt)
{
- unsigned long long r;
- acpi_status status;
+ int i, ret;
- status = acpi_evaluate_integer(handle, name, NULL, &r);
- if (ACPI_FAILURE(status))
- return -EIO;
+ ret = thermal_acpi_trip_critical(zone_adev, &zone_trips[trip_cnt]);
+ if (!ret)
+ trip_cnt++;
- *temp = deci_kelvin_to_millicelsius(r);
-
- return 0;
-}
-
-int int340x_thermal_read_trips(struct int34x_thermal_zone *int34x_zone)
-{
- int trip_cnt = int34x_zone->aux_trip_nr;
- int i;
+ ret = thermal_acpi_trip_hot(zone_adev, &zone_trips[trip_cnt]);
+ if (!ret)
+ trip_cnt++;
- mutex_lock(&int34x_zone->trip_mutex);
-
- int34x_zone->crt_trip_id = -1;
- if (!int340x_thermal_get_trip_config(int34x_zone->adev->handle, "_CRT",
- &int34x_zone->crt_temp))
- int34x_zone->crt_trip_id = trip_cnt++;
-
- int34x_zone->hot_trip_id = -1;
- if (!int340x_thermal_get_trip_config(int34x_zone->adev->handle, "_HOT",
- &int34x_zone->hot_temp))
- int34x_zone->hot_trip_id = trip_cnt++;
-
- int34x_zone->psv_trip_id = -1;
- if (!int340x_thermal_get_trip_config(int34x_zone->adev->handle, "_PSV",
- &int34x_zone->psv_temp))
- int34x_zone->psv_trip_id = trip_cnt++;
+ ret = thermal_acpi_trip_passive(zone_adev, &zone_trips[trip_cnt]);
+ if (!ret)
+ trip_cnt++;
for (i = 0; i < INT340X_THERMAL_MAX_ACT_TRIP_COUNT; i++) {
- char name[5] = { '_', 'A', 'C', '0' + i, '\0' };
- if (int340x_thermal_get_trip_config(int34x_zone->adev->handle,
- name,
- &int34x_zone->act_trips[i].temp))
+ ret = thermal_acpi_trip_active(zone_adev, i, &zone_trips[trip_cnt]);
+ if (ret)
break;
- int34x_zone->act_trips[i].id = trip_cnt++;
- int34x_zone->act_trips[i].valid = true;
+ trip_cnt++;
}
- mutex_unlock(&int34x_zone->trip_mutex);
-
return trip_cnt;
}
-EXPORT_SYMBOL_GPL(int340x_thermal_read_trips);
static struct thermal_zone_params int340x_thermal_params = {
.governor_name = "user_space",
@@ -217,18 +103,18 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
int (*get_temp) (struct thermal_zone_device *, int *))
{
struct int34x_thermal_zone *int34x_thermal_zone;
- acpi_status status;
- unsigned long long trip_cnt;
+ struct thermal_trip *zone_trips;
+ unsigned long long trip_cnt = 0;
+ unsigned long long hyst;
int trip_mask = 0;
- int ret;
+ acpi_status status;
+ int i, ret;
int34x_thermal_zone = kzalloc(sizeof(*int34x_thermal_zone),
GFP_KERNEL);
if (!int34x_thermal_zone)
return ERR_PTR(-ENOMEM);
- mutex_init(&int34x_thermal_zone->trip_mutex);
-
int34x_thermal_zone->adev = adev;
int34x_thermal_zone->ops = kmemdup(&int340x_thermal_zone_ops,
@@ -242,33 +128,42 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
int34x_thermal_zone->ops->get_temp = get_temp;
status = acpi_evaluate_integer(adev->handle, "PATC", NULL, &trip_cnt);
- if (ACPI_FAILURE(status))
- trip_cnt = 0;
- else {
- int i;
-
- int34x_thermal_zone->aux_trips =
- kcalloc(trip_cnt,
- sizeof(*int34x_thermal_zone->aux_trips),
- GFP_KERNEL);
- if (!int34x_thermal_zone->aux_trips) {
- ret = -ENOMEM;
- goto err_trip_alloc;
- }
- trip_mask = BIT(trip_cnt) - 1;
+ if (!ACPI_FAILURE(status)) {
int34x_thermal_zone->aux_trip_nr = trip_cnt;
- for (i = 0; i < trip_cnt; ++i)
- int34x_thermal_zone->aux_trips[i] = THERMAL_TEMP_INVALID;
+ trip_mask = BIT(trip_cnt) - 1;
+ }
+
+ zone_trips = kzalloc(sizeof(*zone_trips) * (trip_cnt + INT340X_THERMAL_MAX_TRIP_COUNT),
+ GFP_KERNEL);
+ if (!zone_trips) {
+ ret = -ENOMEM;
+ goto err_trips_alloc;
}
- trip_cnt = int340x_thermal_read_trips(int34x_thermal_zone);
+ for (i = 0; i < trip_cnt; i++) {
+ zone_trips[i].type = THERMAL_TRIP_PASSIVE;
+ zone_trips[i].temperature = THERMAL_TEMP_INVALID;
+ }
+
+ trip_cnt = int340x_thermal_read_trips(adev, zone_trips, trip_cnt);
+
+ status = acpi_evaluate_integer(adev->handle, "GTSH", NULL, &hyst);
+ if (ACPI_SUCCESS(status))
+ hyst *= 100;
+ else
+ hyst = 0;
+
+ for (i = 0; i < trip_cnt; ++i)
+ zone_trips[i].hysteresis = hyst;
+
+ int34x_thermal_zone->trips = zone_trips;
int34x_thermal_zone->lpat_table = acpi_lpat_get_conversion_table(
adev->handle);
- int34x_thermal_zone->zone = thermal_zone_device_register(
+ int34x_thermal_zone->zone = thermal_zone_device_register_with_trips(
acpi_device_bid(adev),
- trip_cnt,
+ zone_trips, trip_cnt,
trip_mask, int34x_thermal_zone,
int34x_thermal_zone->ops,
&int340x_thermal_params,
@@ -286,12 +181,11 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
err_enable:
thermal_zone_device_unregister(int34x_thermal_zone->zone);
err_thermal_zone:
+ kfree(int34x_thermal_zone->trips);
acpi_lpat_free_conversion_table(int34x_thermal_zone->lpat_table);
- kfree(int34x_thermal_zone->aux_trips);
-err_trip_alloc:
+err_trips_alloc:
kfree(int34x_thermal_zone->ops);
err_ops_alloc:
- mutex_destroy(&int34x_thermal_zone->trip_mutex);
kfree(int34x_thermal_zone);
return ERR_PTR(ret);
}
@@ -302,13 +196,55 @@ void int340x_thermal_zone_remove(struct int34x_thermal_zone
{
thermal_zone_device_unregister(int34x_thermal_zone->zone);
acpi_lpat_free_conversion_table(int34x_thermal_zone->lpat_table);
- kfree(int34x_thermal_zone->aux_trips);
+ kfree(int34x_thermal_zone->trips);
kfree(int34x_thermal_zone->ops);
- mutex_destroy(&int34x_thermal_zone->trip_mutex);
kfree(int34x_thermal_zone);
}
EXPORT_SYMBOL_GPL(int340x_thermal_zone_remove);
+void int340x_thermal_update_trips(struct int34x_thermal_zone *int34x_zone)
+{
+ struct acpi_device *zone_adev = int34x_zone->adev;
+ struct thermal_trip *zone_trips = int34x_zone->trips;
+ int trip_cnt = int34x_zone->zone->num_trips;
+ int act_trip_nr = 0;
+ int i;
+
+ mutex_lock(&int34x_zone->zone->lock);
+
+ for (i = int34x_zone->aux_trip_nr; i < trip_cnt; i++) {
+ struct thermal_trip trip;
+ int err;
+
+ switch (zone_trips[i].type) {
+ case THERMAL_TRIP_CRITICAL:
+ err = thermal_acpi_trip_critical(zone_adev, &trip);
+ break;
+ case THERMAL_TRIP_HOT:
+ err = thermal_acpi_trip_hot(zone_adev, &trip);
+ break;
+ case THERMAL_TRIP_PASSIVE:
+ err = thermal_acpi_trip_passive(zone_adev, &trip);
+ break;
+ case THERMAL_TRIP_ACTIVE:
+ err = thermal_acpi_trip_active(zone_adev, act_trip_nr++,
+ &trip);
+ break;
+ default:
+ err = -ENODEV;
+ }
+ if (err) {
+ zone_trips[i].temperature = THERMAL_TEMP_INVALID;
+ continue;
+ }
+
+ zone_trips[i].temperature = trip.temperature;
+ }
+
+ mutex_unlock(&int34x_zone->zone->lock);
+}
+EXPORT_SYMBOL_GPL(int340x_thermal_update_trips);
+
MODULE_AUTHOR("Aaron Lu <aaron.lu@intel.com>");
MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
MODULE_DESCRIPTION("Intel INT340x common thermal zone handler");
diff --git a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h
index 6610a9cc441b..e0df6271facc 100644
--- a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h
+++ b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h
@@ -10,6 +10,7 @@
#include <acpi/acpi_lpat.h>
#define INT340X_THERMAL_MAX_ACT_TRIP_COUNT 10
+#define INT340X_THERMAL_MAX_TRIP_COUNT INT340X_THERMAL_MAX_ACT_TRIP_COUNT + 3
struct active_trip {
int temp;
@@ -19,26 +20,18 @@ struct active_trip {
struct int34x_thermal_zone {
struct acpi_device *adev;
- struct active_trip act_trips[INT340X_THERMAL_MAX_ACT_TRIP_COUNT];
- unsigned long *aux_trips;
+ struct thermal_trip *trips;
int aux_trip_nr;
- int psv_temp;
- int psv_trip_id;
- int crt_temp;
- int crt_trip_id;
- int hot_temp;
- int hot_trip_id;
struct thermal_zone_device *zone;
struct thermal_zone_device_ops *ops;
void *priv_data;
struct acpi_lpat_conversion_table *lpat_table;
- struct mutex trip_mutex;
};
struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *,
int (*get_temp) (struct thermal_zone_device *, int *));
void int340x_thermal_zone_remove(struct int34x_thermal_zone *);
-int int340x_thermal_read_trips(struct int34x_thermal_zone *int34x_zone);
+void int340x_thermal_update_trips(struct int34x_thermal_zone *int34x_zone);
static inline void int340x_thermal_zone_set_priv_data(
struct int34x_thermal_zone *tzone, void *priv_data)
diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
index 317703027ce9..a1dc18be7609 100644
--- a/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
+++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
@@ -4,6 +4,7 @@
* Copyright (c) 2014, Intel Corporation.
*/
#include <linux/acpi.h>
+#include <linux/intel_tcc.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
@@ -68,54 +69,17 @@ static const struct attribute_group power_limit_attribute_group = {
.name = "power_limits"
};
-static int tcc_get_offset(void)
-{
- u64 val;
- int err;
-
- err = rdmsrl_safe(MSR_IA32_TEMPERATURE_TARGET, &val);
- if (err)
- return err;
-
- return (val >> 24) & 0x3f;
-}
-
static ssize_t tcc_offset_degree_celsius_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- int tcc;
-
- tcc = tcc_get_offset();
- if (tcc < 0)
- return tcc;
+ int offset;
- return sprintf(buf, "%d\n", tcc);
-}
-
-static int tcc_offset_update(unsigned int tcc)
-{
- u64 val;
- int err;
-
- if (tcc > 63)
- return -EINVAL;
-
- err = rdmsrl_safe(MSR_IA32_TEMPERATURE_TARGET, &val);
- if (err)
- return err;
-
- if (val & BIT(31))
- return -EPERM;
-
- val &= ~GENMASK_ULL(29, 24);
- val |= (tcc & 0x3f) << 24;
-
- err = wrmsrl_safe(MSR_IA32_TEMPERATURE_TARGET, val);
- if (err)
- return err;
+ offset = intel_tcc_get_offset(-1);
+ if (offset < 0)
+ return offset;
- return 0;
+ return sprintf(buf, "%d\n", offset);
}
static ssize_t tcc_offset_degree_celsius_store(struct device *dev,
@@ -136,7 +100,7 @@ static ssize_t tcc_offset_degree_celsius_store(struct device *dev,
if (kstrtouint(buf, 0, &tcc))
return -EINVAL;
- err = tcc_offset_update(tcc);
+ err = intel_tcc_set_offset(-1, tcc);
if (err)
return err;
@@ -145,66 +109,25 @@ static ssize_t tcc_offset_degree_celsius_store(struct device *dev,
static DEVICE_ATTR_RW(tcc_offset_degree_celsius);
-static int stored_tjmax; /* since it is fixed, we can have local storage */
-
-static int get_tjmax(void)
-{
- u32 eax, edx;
- u32 val;
- int err;
-
- err = rdmsr_safe(MSR_IA32_TEMPERATURE_TARGET, &eax, &edx);
- if (err)
- return err;
-
- val = (eax >> 16) & 0xff;
- if (val)
- return val;
-
- return -EINVAL;
-}
-
-static int read_temp_msr(int *temp)
+static int proc_thermal_get_zone_temp(struct thermal_zone_device *zone,
+ int *temp)
{
int cpu;
- u32 eax, edx;
- int err;
- unsigned long curr_temp_off = 0;
+ int curr_temp;
*temp = 0;
for_each_online_cpu(cpu) {
- err = rdmsr_safe_on_cpu(cpu, MSR_IA32_THERM_STATUS, &eax,
- &edx);
- if (err)
- goto err_ret;
- else {
- if (eax & 0x80000000) {
- curr_temp_off = (eax >> 16) & 0x7f;
- if (!*temp || curr_temp_off < *temp)
- *temp = curr_temp_off;
- } else {
- err = -EINVAL;
- goto err_ret;
- }
- }
+ curr_temp = intel_tcc_get_temp(cpu, false);
+ if (curr_temp < 0)
+ return curr_temp;
+ if (!*temp || curr_temp > *temp)
+ *temp = curr_temp;
}
- return 0;
-err_ret:
- return err;
-}
-
-static int proc_thermal_get_zone_temp(struct thermal_zone_device *zone,
- int *temp)
-{
- int ret;
-
- ret = read_temp_msr(temp);
- if (!ret)
- *temp = (stored_tjmax - *temp) * 1000;
+ *temp *= 1000;
- return ret;
+ return 0;
}
static int proc_thermal_read_ppcc(struct proc_thermal_device *proc_priv)
@@ -298,8 +221,7 @@ int proc_thermal_add(struct device *dev, struct proc_thermal_device *proc_priv)
status = acpi_evaluate_integer(adev->handle, "_TMP", NULL, &tmp);
if (ACPI_FAILURE(status)) {
/* there is no _TMP method, add local method */
- stored_tjmax = get_tjmax();
- if (stored_tjmax > 0)
+ if (intel_tcc_get_tjmax(-1) > 0)
get_temp = proc_thermal_get_zone_temp;
}
@@ -352,7 +274,7 @@ static int tcc_offset_save = -1;
int proc_thermal_suspend(struct device *dev)
{
- tcc_offset_save = tcc_get_offset();
+ tcc_offset_save = intel_tcc_get_offset(-1);
if (tcc_offset_save < 0)
dev_warn(dev, "failed to save offset (%d)\n", tcc_offset_save);
@@ -369,7 +291,7 @@ int proc_thermal_resume(struct device *dev)
/* Do not update if saving failed */
if (tcc_offset_save >= 0)
- tcc_offset_update(tcc_offset_save);
+ intel_tcc_set_offset(-1, tcc_offset_save);
return 0;
}
@@ -456,6 +378,7 @@ void proc_thermal_mmio_remove(struct pci_dev *pdev, struct proc_thermal_device *
}
EXPORT_SYMBOL_GPL(proc_thermal_mmio_remove);
+MODULE_IMPORT_NS(INTEL_TCC);
MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
MODULE_DESCRIPTION("Processor Thermal Reporting Device Driver");
MODULE_LICENSE("GPL v2");
diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
index bf1b1cdfade4..40725cbc6eb0 100644
--- a/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
+++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
@@ -144,34 +144,6 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd, int *temp)
return 0;
}
-static int sys_get_trip_temp(struct thermal_zone_device *tzd,
- int trip, int *temp)
-{
- struct proc_thermal_pci *pci_info = tzd->devdata;
- u32 _temp;
-
- proc_thermal_mmio_read(pci_info, PROC_THERMAL_MMIO_THRES_0, &_temp);
- if (!_temp) {
- *temp = THERMAL_TEMP_INVALID;
- } else {
- int tjmax;
-
- proc_thermal_mmio_read(pci_info, PROC_THERMAL_MMIO_TJMAX, &tjmax);
- _temp = tjmax - _temp;
- *temp = (unsigned long)_temp * 1000;
- }
-
- return 0;
-}
-
-static int sys_get_trip_type(struct thermal_zone_device *tzd, int trip,
- enum thermal_trip_type *type)
-{
- *type = THERMAL_TRIP_PASSIVE;
-
- return 0;
-}
-
static int sys_set_trip_temp(struct thermal_zone_device *tzd, int trip, int temp)
{
struct proc_thermal_pci *pci_info = tzd->devdata;
@@ -200,10 +172,26 @@ static int sys_set_trip_temp(struct thermal_zone_device *tzd, int trip, int temp
return 0;
}
+static int get_trip_temp(struct proc_thermal_pci *pci_info)
+{
+ int temp, tjmax;
+
+ proc_thermal_mmio_read(pci_info, PROC_THERMAL_MMIO_THRES_0, &temp);
+ if (!temp)
+ return THERMAL_TEMP_INVALID;
+
+ proc_thermal_mmio_read(pci_info, PROC_THERMAL_MMIO_TJMAX, &tjmax);
+ temp = (tjmax - temp) * 1000;
+
+ return temp;
+}
+
+static struct thermal_trip psv_trip = {
+ .type = THERMAL_TRIP_PASSIVE,
+};
+
static struct thermal_zone_device_ops tzone_ops = {
.get_temp = sys_get_curr_temp,
- .get_trip_temp = sys_get_trip_temp,
- .get_trip_type = sys_get_trip_type,
.set_trip_temp = sys_set_trip_temp,
};
@@ -251,7 +239,10 @@ static int proc_thermal_pci_probe(struct pci_dev *pdev, const struct pci_device_
if (ret)
goto err_ret_thermal;
- pci_info->tzone = thermal_zone_device_register("TCPU_PCI", 1, 1, pci_info,
+ psv_trip.temperature = get_trip_temp(pci_info);
+
+ pci_info->tzone = thermal_zone_device_register_with_trips("TCPU_PCI", &psv_trip,
+ 1, 1, pci_info,
&tzone_ops,
&tzone_params, 0, 0);
if (IS_ERR(pci_info->tzone)) {
diff --git a/drivers/thermal/intel/intel_menlow.c b/drivers/thermal/intel/intel_menlow.c
index 3f885b08a490..5a6ad0552311 100644
--- a/drivers/thermal/intel/intel_menlow.c
+++ b/drivers/thermal/intel/intel_menlow.c
@@ -232,9 +232,9 @@ static DEFINE_MUTEX(intel_menlow_attr_lock);
/*
* sensor_get_auxtrip - get the current auxtrip value from sensor
- * @name: Thermalzone name
- * @auxtype : AUX0/AUX1
- * @buf: syfs buffer
+ * @handle: Object handle
+ * @index : GET_AUX1/GET_AUX0
+ * @value : The address will be fill by the value
*/
static int sensor_get_auxtrip(acpi_handle handle, int index,
unsigned long long *value)
@@ -254,9 +254,9 @@ static int sensor_get_auxtrip(acpi_handle handle, int index,
/*
* sensor_set_auxtrip - set the new auxtrip value to sensor
- * @name: Thermalzone name
- * @auxtype : AUX0/AUX1
- * @buf: syfs buffer
+ * @handle: Object handle
+ * @index : GET_AUX1/GET_AUX0
+ * @value : The value will be set
*/
static int sensor_set_auxtrip(acpi_handle handle, int index, int value)
{
diff --git a/drivers/thermal/intel/intel_pch_thermal.c b/drivers/thermal/intel/intel_pch_thermal.c
index dabf11a687a1..45a9ea86907e 100644
--- a/drivers/thermal/intel/intel_pch_thermal.c
+++ b/drivers/thermal/intel/intel_pch_thermal.c
@@ -29,6 +29,7 @@
#define PCH_THERMAL_DID_CNL_LP 0x02F9 /* CNL-LP PCH */
#define PCH_THERMAL_DID_CML_H 0X06F9 /* CML-H PCH */
#define PCH_THERMAL_DID_LWB 0xA1B1 /* Lewisburg PCH */
+#define PCH_THERMAL_DID_WBG 0x8D24 /* Wellsburg PCH */
/* Wildcat Point-LP PCH Thermal registers */
#define WPT_TEMP 0x0000 /* Temperature */
@@ -65,6 +66,8 @@
#define WPT_TEMP_OFFSET (PCH_TEMP_OFFSET * MILLIDEGREE_PER_DEGREE)
#define GET_PCH_TEMP(x) (((x) / 2) + PCH_TEMP_OFFSET)
+#define PCH_MAX_TRIPS 3 /* critical, hot, passive */
+
/* Amount of time for each cooling delay, 100ms by default for now */
static unsigned int delay_timeout = 100;
module_param(delay_timeout, int, 0644);
@@ -82,12 +85,7 @@ struct pch_thermal_device {
const struct pch_dev_ops *ops;
struct pci_dev *pdev;
struct thermal_zone_device *tzd;
- int crt_trip_id;
- unsigned long crt_temp;
- int hot_trip_id;
- unsigned long hot_temp;
- int psv_trip_id;
- unsigned long psv_temp;
+ struct thermal_trip trips[PCH_MAX_TRIPS];
bool bios_enabled;
};
@@ -102,33 +100,22 @@ static void pch_wpt_add_acpi_psv_trip(struct pch_thermal_device *ptd,
int *nr_trips)
{
struct acpi_device *adev;
-
- ptd->psv_trip_id = -1;
+ int ret;
adev = ACPI_COMPANION(&ptd->pdev->dev);
- if (adev) {
- unsigned long long r;
- acpi_status status;
-
- status = acpi_evaluate_integer(adev->handle, "_PSV", NULL,
- &r);
- if (ACPI_SUCCESS(status)) {
- unsigned long trip_temp;
-
- trip_temp = deci_kelvin_to_millicelsius(r);
- if (trip_temp) {
- ptd->psv_temp = trip_temp;
- ptd->psv_trip_id = *nr_trips;
- ++(*nr_trips);
- }
- }
- }
+ if (!adev)
+ return;
+
+ ret = thermal_acpi_trip_passive(adev, &ptd->trips[*nr_trips]);
+ if (ret || ptd->trips[*nr_trips].temperature <= 0)
+ return;
+
+ ++(*nr_trips);
}
#else
static void pch_wpt_add_acpi_psv_trip(struct pch_thermal_device *ptd,
int *nr_trips)
{
- ptd->psv_trip_id = -1;
}
#endif
@@ -163,21 +150,19 @@ static int pch_wpt_init(struct pch_thermal_device *ptd, int *nr_trips)
}
read_trips:
- ptd->crt_trip_id = -1;
trip_temp = readw(ptd->hw_base + WPT_CTT);
trip_temp &= 0x1FF;
if (trip_temp) {
- ptd->crt_temp = GET_WPT_TEMP(trip_temp);
- ptd->crt_trip_id = 0;
+ ptd->trips[*nr_trips].temperature = GET_WPT_TEMP(trip_temp);
+ ptd->trips[*nr_trips].type = THERMAL_TRIP_CRITICAL;
++(*nr_trips);
}
- ptd->hot_trip_id = -1;
trip_temp = readw(ptd->hw_base + WPT_PHL);
trip_temp &= 0x1FF;
if (trip_temp) {
- ptd->hot_temp = GET_WPT_TEMP(trip_temp);
- ptd->hot_trip_id = *nr_trips;
+ ptd->trips[*nr_trips].temperature = GET_WPT_TEMP(trip_temp);
+ ptd->trips[*nr_trips].type = THERMAL_TRIP_HOT;
++(*nr_trips);
}
@@ -298,39 +283,6 @@ static int pch_thermal_get_temp(struct thermal_zone_device *tzd, int *temp)
return ptd->ops->get_temp(ptd, temp);
}
-static int pch_get_trip_type(struct thermal_zone_device *tzd, int trip,
- enum thermal_trip_type *type)
-{
- struct pch_thermal_device *ptd = tzd->devdata;
-
- if (ptd->crt_trip_id == trip)
- *type = THERMAL_TRIP_CRITICAL;
- else if (ptd->hot_trip_id == trip)
- *type = THERMAL_TRIP_HOT;
- else if (ptd->psv_trip_id == trip)
- *type = THERMAL_TRIP_PASSIVE;
- else
- return -EINVAL;
-
- return 0;
-}
-
-static int pch_get_trip_temp(struct thermal_zone_device *tzd, int trip, int *temp)
-{
- struct pch_thermal_device *ptd = tzd->devdata;
-
- if (ptd->crt_trip_id == trip)
- *temp = ptd->crt_temp;
- else if (ptd->hot_trip_id == trip)
- *temp = ptd->hot_temp;
- else if (ptd->psv_trip_id == trip)
- *temp = ptd->psv_temp;
- else
- return -EINVAL;
-
- return 0;
-}
-
static void pch_critical(struct thermal_zone_device *tzd)
{
dev_dbg(&tzd->device, "%s: critical temperature reached\n", tzd->type);
@@ -338,8 +290,6 @@ static void pch_critical(struct thermal_zone_device *tzd)
static struct thermal_zone_device_ops tzd_ops = {
.get_temp = pch_thermal_get_temp,
- .get_trip_type = pch_get_trip_type,
- .get_trip_temp = pch_get_trip_temp,
.critical = pch_critical,
};
@@ -350,6 +300,7 @@ enum board_ids {
board_cnl,
board_cml,
board_lwb,
+ board_wbg,
};
static const struct board_info {
@@ -380,6 +331,10 @@ static const struct board_info {
.name = "pch_lewisburg",
.ops = &pch_dev_ops_wpt,
},
+ [board_wbg] = {
+ .name = "pch_wellsburg",
+ .ops = &pch_dev_ops_wpt,
+ },
};
static int intel_pch_thermal_probe(struct pci_dev *pdev,
@@ -423,8 +378,9 @@ static int intel_pch_thermal_probe(struct pci_dev *pdev,
if (err)
goto error_cleanup;
- ptd->tzd = thermal_zone_device_register(bi->name, nr_trips, 0, ptd,
- &tzd_ops, NULL, 0, 0);
+ ptd->tzd = thermal_zone_device_register_with_trips(bi->name, ptd->trips,
+ nr_trips, 0, ptd,
+ &tzd_ops, NULL, 0, 0);
if (IS_ERR(ptd->tzd)) {
dev_err(&pdev->dev, "Failed to register thermal zone %s\n",
bi->name);
@@ -495,6 +451,8 @@ static const struct pci_device_id intel_pch_thermal_id[] = {
.driver_data = board_cml, },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCH_THERMAL_DID_LWB),
.driver_data = board_lwb, },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCH_THERMAL_DID_WBG),
+ .driver_data = board_wbg, },
{ 0, },
};
MODULE_DEVICE_TABLE(pci, intel_pch_thermal_id);
diff --git a/drivers/thermal/intel/intel_soc_dts_iosf.c b/drivers/thermal/intel/intel_soc_dts_iosf.c
index 342b0bb5a56d..8c26f7b2316b 100644
--- a/drivers/thermal/intel/intel_soc_dts_iosf.c
+++ b/drivers/thermal/intel/intel_soc_dts_iosf.c
@@ -7,6 +7,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/bitops.h>
+#include <linux/intel_tcc.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
@@ -45,32 +46,6 @@
/* DTS0 and DTS 1 */
#define SOC_MAX_DTS_SENSORS 2
-static int get_tj_max(u32 *tj_max)
-{
- u32 eax, edx;
- u32 val;
- int err;
-
- err = rdmsr_safe(MSR_IA32_TEMPERATURE_TARGET, &eax, &edx);
- if (err)
- goto err_ret;
- else {
- val = (eax >> 16) & 0xff;
- if (val)
- *tj_max = val * 1000;
- else {
- err = -EINVAL;
- goto err_ret;
- }
- }
-
- return 0;
-err_ret:
- *tj_max = 0;
-
- return err;
-}
-
static int sys_get_trip_temp(struct thermal_zone_device *tzd, int trip,
int *temp)
{
@@ -405,7 +380,7 @@ struct intel_soc_dts_sensors *intel_soc_dts_iosf_init(
{
struct intel_soc_dts_sensors *sensors;
bool notification;
- u32 tj_max;
+ int tj_max;
int ret;
int i;
@@ -415,8 +390,9 @@ struct intel_soc_dts_sensors *intel_soc_dts_iosf_init(
if (!trip_count || read_only_trip_count > trip_count)
return ERR_PTR(-EINVAL);
- if (get_tj_max(&tj_max))
- return ERR_PTR(-EINVAL);
+ tj_max = intel_tcc_get_tjmax(-1);
+ if (tj_max < 0)
+ return ERR_PTR(tj_max);
sensors = kzalloc(sizeof(*sensors), GFP_KERNEL);
if (!sensors)
@@ -475,4 +451,5 @@ void intel_soc_dts_iosf_exit(struct intel_soc_dts_sensors *sensors)
}
EXPORT_SYMBOL_GPL(intel_soc_dts_iosf_exit);
+MODULE_IMPORT_NS(INTEL_TCC);
MODULE_LICENSE("GPL v2");
diff --git a/drivers/thermal/intel/intel_tcc.c b/drivers/thermal/intel/intel_tcc.c
new file mode 100644
index 000000000000..2e5c741c41ca
--- /dev/null
+++ b/drivers/thermal/intel/intel_tcc.c
@@ -0,0 +1,139 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * intel_tcc.c - Library for Intel TCC (thermal control circuitry) MSR access
+ * Copyright (c) 2022, Intel Corporation.
+ */
+
+#include <linux/errno.h>
+#include <linux/intel_tcc.h>
+#include <asm/msr.h>
+
+/**
+ * intel_tcc_get_tjmax() - returns the default TCC activation Temperature
+ * @cpu: cpu that the MSR should be run on, nagative value means any cpu.
+ *
+ * Get the TjMax value, which is the default thermal throttling or TCC
+ * activation temperature in degrees C.
+ *
+ * Return: Tjmax value in degrees C on success, negative error code otherwise.
+ */
+int intel_tcc_get_tjmax(int cpu)
+{
+ u32 low, high;
+ int val, err;
+
+ if (cpu < 0)
+ err = rdmsr_safe(MSR_IA32_TEMPERATURE_TARGET, &low, &high);
+ else
+ err = rdmsr_safe_on_cpu(cpu, MSR_IA32_TEMPERATURE_TARGET, &low, &high);
+ if (err)
+ return err;
+
+ val = (low >> 16) & 0xff;
+
+ return val ? val : -ENODATA;
+}
+EXPORT_SYMBOL_NS_GPL(intel_tcc_get_tjmax, INTEL_TCC);
+
+/**
+ * intel_tcc_get_offset() - returns the TCC Offset value to Tjmax
+ * @cpu: cpu that the MSR should be run on, nagative value means any cpu.
+ *
+ * Get the TCC offset value to Tjmax. The effective thermal throttling or TCC
+ * activation temperature equals "Tjmax" - "TCC Offset", in degrees C.
+ *
+ * Return: Tcc offset value in degrees C on success, negative error code otherwise.
+ */
+int intel_tcc_get_offset(int cpu)
+{
+ u32 low, high;
+ int err;
+
+ if (cpu < 0)
+ err = rdmsr_safe(MSR_IA32_TEMPERATURE_TARGET, &low, &high);
+ else
+ err = rdmsr_safe_on_cpu(cpu, MSR_IA32_TEMPERATURE_TARGET, &low, &high);
+ if (err)
+ return err;
+
+ return (low >> 24) & 0x3f;
+}
+EXPORT_SYMBOL_NS_GPL(intel_tcc_get_offset, INTEL_TCC);
+
+/**
+ * intel_tcc_set_offset() - set the TCC offset value to Tjmax
+ * @cpu: cpu that the MSR should be run on, nagative value means any cpu.
+ * @offset: TCC offset value in degree C
+ *
+ * Set the TCC Offset value to Tjmax. The effective thermal throttling or TCC
+ * activation temperature equals "Tjmax" - "TCC Offset", in degree C.
+ *
+ * Return: On success returns 0, negative error code otherwise.
+ */
+
+int intel_tcc_set_offset(int cpu, int offset)
+{
+ u32 low, high;
+ int err;
+
+ if (offset < 0 || offset > 0x3f)
+ return -EINVAL;
+
+ if (cpu < 0)
+ err = rdmsr_safe(MSR_IA32_TEMPERATURE_TARGET, &low, &high);
+ else
+ err = rdmsr_safe_on_cpu(cpu, MSR_IA32_TEMPERATURE_TARGET, &low, &high);
+ if (err)
+ return err;
+
+ /* MSR Locked */
+ if (low & BIT(31))
+ return -EPERM;
+
+ low &= ~(0x3f << 24);
+ low |= offset << 24;
+
+ if (cpu < 0)
+ return wrmsr_safe(MSR_IA32_TEMPERATURE_TARGET, low, high);
+ else
+ return wrmsr_safe_on_cpu(cpu, MSR_IA32_TEMPERATURE_TARGET, low, high);
+}
+EXPORT_SYMBOL_NS_GPL(intel_tcc_set_offset, INTEL_TCC);
+
+/**
+ * intel_tcc_get_temp() - returns the current temperature
+ * @cpu: cpu that the MSR should be run on, nagative value means any cpu.
+ * @pkg: true: Package Thermal Sensor. false: Core Thermal Sensor.
+ *
+ * Get the current temperature returned by the CPU core/package level
+ * thermal sensor, in degrees C.
+ *
+ * Return: Temperature in degrees C on success, negative error code otherwise.
+ */
+int intel_tcc_get_temp(int cpu, bool pkg)
+{
+ u32 low, high;
+ u32 msr = pkg ? MSR_IA32_PACKAGE_THERM_STATUS : MSR_IA32_THERM_STATUS;
+ int tjmax, temp, err;
+
+ tjmax = intel_tcc_get_tjmax(cpu);
+ if (tjmax < 0)
+ return tjmax;
+
+ if (cpu < 0)
+ err = rdmsr_safe(msr, &low, &high);
+ else
+ err = rdmsr_safe_on_cpu(cpu, msr, &low, &high);
+ if (err)
+ return err;
+
+ /* Temperature is beyond the valid thermal sensor range */
+ if (!(low & BIT(31)))
+ return -ENODATA;
+
+ temp = tjmax - ((low >> 16) & 0x7f);
+
+ /* Do not allow negative CPU temperature */
+ return temp >= 0 ? temp : -ENODATA;
+}
+EXPORT_SYMBOL_NS_GPL(intel_tcc_get_temp, INTEL_TCC);
diff --git a/drivers/thermal/intel/intel_tcc_cooling.c b/drivers/thermal/intel/intel_tcc_cooling.c
index a89e7e1890e4..e95f799454fe 100644
--- a/drivers/thermal/intel/intel_tcc_cooling.c
+++ b/drivers/thermal/intel/intel_tcc_cooling.c
@@ -7,12 +7,11 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/device.h>
+#include <linux/intel_tcc.h>
#include <linux/module.h>
#include <linux/thermal.h>
#include <asm/cpu_device_id.h>
-#define TCC_SHIFT 24
-#define TCC_MASK (0x3fULL<<24)
#define TCC_PROGRAMMABLE BIT(30)
#define TCC_LOCKED BIT(31)
@@ -21,47 +20,26 @@ static struct thermal_cooling_device *tcc_cdev;
static int tcc_get_max_state(struct thermal_cooling_device *cdev, unsigned long
*state)
{
- *state = TCC_MASK >> TCC_SHIFT;
- return 0;
-}
-
-static int tcc_offset_update(int tcc)
-{
- u64 val;
- int err;
-
- err = rdmsrl_safe(MSR_IA32_TEMPERATURE_TARGET, &val);
- if (err)
- return err;
-
- val &= ~TCC_MASK;
- val |= tcc << TCC_SHIFT;
-
- err = wrmsrl_safe(MSR_IA32_TEMPERATURE_TARGET, val);
- if (err)
- return err;
-
+ *state = 0x3f;
return 0;
}
static int tcc_get_cur_state(struct thermal_cooling_device *cdev, unsigned long
*state)
{
- u64 val;
- int err;
+ int offset = intel_tcc_get_offset(-1);
- err = rdmsrl_safe(MSR_IA32_TEMPERATURE_TARGET, &val);
- if (err)
- return err;
+ if (offset < 0)
+ return offset;
- *state = (val & TCC_MASK) >> TCC_SHIFT;
+ *state = offset;
return 0;
}
static int tcc_set_cur_state(struct thermal_cooling_device *cdev, unsigned long
state)
{
- return tcc_offset_update(state);
+ return intel_tcc_set_offset(-1, (int)state);
}
static const struct thermal_cooling_device_ops tcc_cooling_ops = {
@@ -140,6 +118,7 @@ static void __exit tcc_cooling_exit(void)
module_exit(tcc_cooling_exit)
+MODULE_IMPORT_NS(INTEL_TCC);
MODULE_DESCRIPTION("TCC offset cooling device Driver");
MODULE_AUTHOR("Zhang Rui <rui.zhang@intel.com>");
MODULE_LICENSE("GPL v2");
diff --git a/drivers/thermal/intel/x86_pkg_temp_thermal.c b/drivers/thermal/intel/x86_pkg_temp_thermal.c
index 494f25250c2d..1c2de84742df 100644
--- a/drivers/thermal/intel/x86_pkg_temp_thermal.c
+++ b/drivers/thermal/intel/x86_pkg_temp_thermal.c
@@ -7,6 +7,7 @@
#include <linux/module.h>
#include <linux/init.h>
+#include <linux/intel_tcc.h>
#include <linux/err.h>
#include <linux/param.h>
#include <linux/device.h>
@@ -48,7 +49,6 @@ MODULE_PARM_DESC(notify_delay_ms,
struct zone_device {
int cpu;
bool work_scheduled;
- u32 tj_max;
u32 msr_pkg_therm_low;
u32 msr_pkg_therm_high;
struct delayed_work work;
@@ -105,38 +105,18 @@ static struct zone_device *pkg_temp_thermal_get_dev(unsigned int cpu)
return NULL;
}
-/*
-* tj-max is interesting because threshold is set relative to this
-* temperature.
-*/
-static int get_tj_max(int cpu, u32 *tj_max)
-{
- u32 eax, edx, val;
- int err;
-
- err = rdmsr_safe_on_cpu(cpu, MSR_IA32_TEMPERATURE_TARGET, &eax, &edx);
- if (err)
- return err;
-
- val = (eax >> 16) & 0xff;
- *tj_max = val * 1000;
-
- return val ? 0 : -EINVAL;
-}
-
static int sys_get_curr_temp(struct thermal_zone_device *tzd, int *temp)
{
struct zone_device *zonedev = tzd->devdata;
- u32 eax, edx;
+ int val;
- rdmsr_on_cpu(zonedev->cpu, MSR_IA32_PACKAGE_THERM_STATUS,
- &eax, &edx);
- if (eax & 0x80000000) {
- *temp = zonedev->tj_max - ((eax >> 16) & 0x7f) * 1000;
- pr_debug("sys_get_curr_temp %d\n", *temp);
- return 0;
- }
- return -EINVAL;
+ val = intel_tcc_get_temp(zonedev->cpu, true);
+ if (val < 0)
+ return val;
+
+ *temp = val * 1000;
+ pr_debug("sys_get_curr_temp %d\n", *temp);
+ return 0;
}
static int
@@ -144,9 +124,14 @@ sys_set_trip_temp(struct thermal_zone_device *tzd, int trip, int temp)
{
struct zone_device *zonedev = tzd->devdata;
u32 l, h, mask, shift, intr;
- int ret;
+ int tj_max, ret;
- if (trip >= MAX_NUMBER_OF_TRIPS || temp >= zonedev->tj_max)
+ tj_max = intel_tcc_get_tjmax(zonedev->cpu);
+ if (tj_max < 0)
+ return tj_max;
+ tj_max *= 1000;
+
+ if (trip >= MAX_NUMBER_OF_TRIPS || temp >= tj_max)
return -EINVAL;
ret = rdmsr_on_cpu(zonedev->cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT,
@@ -171,7 +156,7 @@ sys_set_trip_temp(struct thermal_zone_device *tzd, int trip, int temp)
if (!temp) {
l &= ~intr;
} else {
- l |= (zonedev->tj_max - temp)/1000 << shift;
+ l |= (tj_max - temp)/1000 << shift;
l |= intr;
}
@@ -326,9 +311,10 @@ static struct thermal_trip *pkg_temp_thermal_trips_init(int cpu, int tj_max, int
static int pkg_temp_thermal_device_add(unsigned int cpu)
{
int id = topology_logical_die_id(cpu);
- u32 tj_max, eax, ebx, ecx, edx;
+ u32 eax, ebx, ecx, edx;
struct zone_device *zonedev;
int thres_count, err;
+ int tj_max;
if (id >= max_id)
return -ENOMEM;
@@ -340,9 +326,9 @@ static int pkg_temp_thermal_device_add(unsigned int cpu)
thres_count = clamp_val(thres_count, 0, MAX_NUMBER_OF_TRIPS);
- err = get_tj_max(cpu, &tj_max);
- if (err)
- return err;
+ tj_max = intel_tcc_get_tjmax(cpu);
+ if (tj_max < 0)
+ return tj_max;
zonedev = kzalloc(sizeof(*zonedev), GFP_KERNEL);
if (!zonedev)
@@ -356,7 +342,6 @@ static int pkg_temp_thermal_device_add(unsigned int cpu)
INIT_DELAYED_WORK(&zonedev->work, pkg_temp_thermal_threshold_work_fn);
zonedev->cpu = cpu;
- zonedev->tj_max = tj_max;
zonedev->tzone = thermal_zone_device_register_with_trips("x86_pkg_temp",
zonedev->trips, thres_count,
(thres_count == MAX_NUMBER_OF_TRIPS) ? 0x03 : 0x01,
@@ -545,6 +530,7 @@ static void __exit pkg_temp_thermal_exit(void)
}
module_exit(pkg_temp_thermal_exit)
+MODULE_IMPORT_NS(INTEL_TCC);
MODULE_DESCRIPTION("X86 PKG TEMP Thermal Driver");
MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
MODULE_LICENSE("GPL v2");
diff --git a/drivers/thermal/thermal_acpi.c b/drivers/thermal/thermal_acpi.c
new file mode 100644
index 000000000000..671f774a7621
--- /dev/null
+++ b/drivers/thermal/thermal_acpi.c
@@ -0,0 +1,151 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2023 Linaro Limited
+ * Copyright 2023 Intel Corporation
+ *
+ * Library routines for populating a generic thermal trip point structure
+ * with data obtained by evaluating a specific object in the ACPI Namespace.
+ */
+#include <linux/acpi.h>
+#include <linux/units.h>
+
+#include "thermal_core.h"
+
+/*
+ * Minimum temperature for full military grade is 218°K (-55°C) and
+ * max temperature is 448°K (175°C). We can consider those values as
+ * the boundaries for the [trips] temperature returned by the
+ * firmware. Any values out of these boundaries may be considered
+ * bogus and we can assume the firmware has no data to provide.
+ */
+#define TEMP_MIN_DECIK 2180
+#define TEMP_MAX_DECIK 4480
+
+static int thermal_acpi_trip_init(struct acpi_device *adev,
+ enum thermal_trip_type type, int id,
+ struct thermal_trip *trip)
+{
+ unsigned long long temp;
+ acpi_status status;
+ char obj_name[5];
+
+ switch (type) {
+ case THERMAL_TRIP_ACTIVE:
+ if (id < 0 || id > 9)
+ return -EINVAL;
+
+ obj_name[1] = 'A';
+ obj_name[2] = 'C';
+ obj_name[3] = '0' + id;
+ break;
+ case THERMAL_TRIP_PASSIVE:
+ obj_name[1] = 'P';
+ obj_name[2] = 'S';
+ obj_name[3] = 'V';
+ break;
+ case THERMAL_TRIP_HOT:
+ obj_name[1] = 'H';
+ obj_name[2] = 'O';
+ obj_name[3] = 'T';
+ break;
+ case THERMAL_TRIP_CRITICAL:
+ obj_name[1] = 'C';
+ obj_name[2] = 'R';
+ obj_name[3] = 'T';
+ break;
+ }
+
+ obj_name[0] = '_';
+ obj_name[4] = '\0';
+
+ status = acpi_evaluate_integer(adev->handle, obj_name, NULL, &temp);
+ if (ACPI_FAILURE(status)) {
+ acpi_handle_debug(adev->handle, "%s evaluation failed\n", obj_name);
+ return -ENODATA;
+ }
+
+ if (temp >= TEMP_MIN_DECIK && temp <= TEMP_MAX_DECIK) {
+ trip->temperature = deci_kelvin_to_millicelsius(temp);
+ } else {
+ acpi_handle_debug(adev->handle, "%s result %llu out of range\n",
+ obj_name, temp);
+ trip->temperature = THERMAL_TEMP_INVALID;
+ }
+
+ trip->hysteresis = 0;
+ trip->type = type;
+
+ return 0;
+}
+
+/**
+ * thermal_acpi_trip_active - Get the specified active trip point
+ * @adev: Thermal zone ACPI device object to get the description from.
+ * @id: Active cooling level (0 - 9).
+ * @trip: Trip point structure to be populated on success.
+ *
+ * Evaluate the _ACx object for the thermal zone represented by @adev to obtain
+ * the temperature of the active cooling trip point corresponding to the active
+ * cooling level given by @id and initialize @trip as an active trip point using
+ * that temperature value.
+ *
+ * Return 0 on success or a negative error value on failure.
+ */
+int thermal_acpi_trip_active(struct acpi_device *adev, int id,
+ struct thermal_trip *trip)
+{
+ return thermal_acpi_trip_init(adev, THERMAL_TRIP_ACTIVE, id, trip);
+}
+EXPORT_SYMBOL_GPL(thermal_acpi_trip_active);
+
+/**
+ * thermal_acpi_trip_passive - Get the passive trip point
+ * @adev: Thermal zone ACPI device object to get the description from.
+ * @trip: Trip point structure to be populated on success.
+ *
+ * Evaluate the _PSV object for the thermal zone represented by @adev to obtain
+ * the temperature of the passive cooling trip point and initialize @trip as a
+ * passive trip point using that temperature value.
+ *
+ * Return 0 on success or -ENODATA on failure.
+ */
+int thermal_acpi_trip_passive(struct acpi_device *adev, struct thermal_trip *trip)
+{
+ return thermal_acpi_trip_init(adev, THERMAL_TRIP_PASSIVE, INT_MAX, trip);
+}
+EXPORT_SYMBOL_GPL(thermal_acpi_trip_passive);
+
+/**
+ * thermal_acpi_trip_hot - Get the near critical trip point
+ * @adev: the ACPI device to get the description from.
+ * @trip: a &struct thermal_trip to be filled if the function succeed.
+ *
+ * Evaluate the _HOT object for the thermal zone represented by @adev to obtain
+ * the temperature of the trip point at which the system is expected to be put
+ * into the S4 sleep state and initialize @trip as a hot trip point using that
+ * temperature value.
+ *
+ * Return 0 on success or -ENODATA on failure.
+ */
+int thermal_acpi_trip_hot(struct acpi_device *adev, struct thermal_trip *trip)
+{
+ return thermal_acpi_trip_init(adev, THERMAL_TRIP_HOT, INT_MAX, trip);
+}
+EXPORT_SYMBOL_GPL(thermal_acpi_trip_hot);
+
+/**
+ * thermal_acpi_trip_critical - Get the critical trip point
+ * @adev: the ACPI device to get the description from.
+ * @trip: a &struct thermal_trip to be filled if the function succeed.
+ *
+ * Evaluate the _CRT object for the thermal zone represented by @adev to obtain
+ * the temperature of the critical cooling trip point and initialize @trip as a
+ * critical trip point using that temperature value.
+ *
+ * Return 0 on success or -ENODATA on failure.
+ */
+int thermal_acpi_trip_critical(struct acpi_device *adev, struct thermal_trip *trip)
+{
+ return thermal_acpi_trip_init(adev, THERMAL_TRIP_CRITICAL, INT_MAX, trip);
+}
+EXPORT_SYMBOL_GPL(thermal_acpi_trip_critical);