diff options
30 files changed, 1074 insertions, 764 deletions
diff --git a/Documentation/devicetree/bindings/thermal/allwinner,sun8i-a83t-ths.yaml b/Documentation/devicetree/bindings/thermal/allwinner,sun8i-a83t-ths.yaml index fbd4212285e2..9b2272a9ec15 100644 --- a/Documentation/devicetree/bindings/thermal/allwinner,sun8i-a83t-ths.yaml +++ b/Documentation/devicetree/bindings/thermal/allwinner,sun8i-a83t-ths.yaml @@ -16,6 +16,7 @@ properties: - allwinner,sun8i-a83t-ths - allwinner,sun8i-h3-ths - allwinner,sun8i-r40-ths + - allwinner,sun20i-d1-ths - allwinner,sun50i-a64-ths - allwinner,sun50i-a100-ths - allwinner,sun50i-h5-ths @@ -61,6 +62,7 @@ allOf: compatible: contains: enum: + - allwinner,sun20i-d1-ths - allwinner,sun50i-a100-ths - allwinner,sun50i-h6-ths @@ -84,7 +86,9 @@ allOf: properties: compatible: contains: - const: allwinner,sun8i-h3-ths + enum: + - allwinner,sun8i-h3-ths + - allwinner,sun20i-d1-ths then: properties: @@ -103,6 +107,7 @@ allOf: enum: - allwinner,sun8i-h3-ths - allwinner,sun8i-r40-ths + - allwinner,sun20i-d1-ths - allwinner,sun50i-a64-ths - allwinner,sun50i-a100-ths - allwinner,sun50i-h5-ths diff --git a/Documentation/devicetree/bindings/thermal/loongson,ls2k-thermal.yaml b/Documentation/devicetree/bindings/thermal/loongson,ls2k-thermal.yaml index 7538469997f9..b634f57cd011 100644 --- a/Documentation/devicetree/bindings/thermal/loongson,ls2k-thermal.yaml +++ b/Documentation/devicetree/bindings/thermal/loongson,ls2k-thermal.yaml @@ -10,6 +10,9 @@ maintainers: - zhanghongchen <zhanghongchen@loongson.cn> - Yinbo Zhu <zhuyinbo@loongson.cn> +allOf: + - $ref: /schemas/thermal/thermal-sensor.yaml# + properties: compatible: oneOf: @@ -26,12 +29,16 @@ properties: interrupts: maxItems: 1 + '#thermal-sensor-cells': + const: 1 + required: - compatible - reg - interrupts + - '#thermal-sensor-cells' -additionalProperties: false +unevaluatedProperties: false examples: - | @@ -41,4 +48,5 @@ examples: reg = <0x1fe01500 0x30>; interrupt-parent = <&liointc0>; interrupts = <7 IRQ_TYPE_LEVEL_LOW>; + #thermal-sensor-cells = <1>; }; diff --git a/Documentation/devicetree/bindings/thermal/mediatek,thermal.yaml b/Documentation/devicetree/bindings/thermal/mediatek,thermal.yaml new file mode 100644 index 000000000000..d96a2e32bd8f --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/mediatek,thermal.yaml @@ -0,0 +1,99 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/thermal/mediatek,thermal.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Mediatek thermal controller for on-SoC temperatures + +maintainers: + - Sascha Hauer <s.hauer@pengutronix.de> + +description: + This device does not have its own ADC, instead it directly controls the AUXADC + via AHB bus accesses. For this reason it needs phandles to the AUXADC. Also it + controls a mux in the apmixedsys register space via AHB bus accesses, so a + phandle to the APMIXEDSYS is also needed. + +allOf: + - $ref: thermal-sensor.yaml# + +properties: + compatible: + enum: + - mediatek,mt2701-thermal + - mediatek,mt2712-thermal + - mediatek,mt7622-thermal + - mediatek,mt7981-thermal + - mediatek,mt7986-thermal + - mediatek,mt8173-thermal + - mediatek,mt8183-thermal + - mediatek,mt8365-thermal + - mediatek,mt8516-thermal + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: Main clock needed for register access + - description: The AUXADC clock + + clock-names: + items: + - const: therm + - const: auxadc + + mediatek,auxadc: + $ref: /schemas/types.yaml#/definitions/phandle + description: A phandle to the AUXADC which the thermal controller uses + + mediatek,apmixedsys: + $ref: /schemas/types.yaml#/definitions/phandle + description: A phandle to the APMIXEDSYS controller + + resets: + description: Reset controller controlling the thermal controller + + nvmem-cells: + items: + - description: + NVMEM cell with EEPROMA phandle to the calibration data provided by an + NVMEM device. If unspecified default values shall be used. + + nvmem-cell-names: + items: + - const: calibration-data + +required: + - reg + - interrupts + - clocks + - clock-names + - mediatek,auxadc + - mediatek,apmixedsys + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/clock/mt8173-clk.h> + #include <dt-bindings/reset/mt8173-resets.h> + + thermal@1100b000 { + compatible = "mediatek,mt8173-thermal"; + reg = <0x1100b000 0x1000>; + interrupts = <0 70 IRQ_TYPE_LEVEL_LOW>; + clocks = <&pericfg CLK_PERI_THERM>, <&pericfg CLK_PERI_AUXADC>; + clock-names = "therm", "auxadc"; + resets = <&pericfg MT8173_PERI_THERM_SW_RST>; + mediatek,auxadc = <&auxadc>; + mediatek,apmixedsys = <&apmixedsys>; + nvmem-cells = <&thermal_calibration_data>; + nvmem-cell-names = "calibration-data"; + #thermal-sensor-cells = <1>; + }; diff --git a/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt b/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt deleted file mode 100644 index ac39c7156fde..000000000000 --- a/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt +++ /dev/null @@ -1,52 +0,0 @@ -* Mediatek Thermal - -This describes the device tree binding for the Mediatek thermal controller -which measures the on-SoC temperatures. This device does not have its own ADC, -instead it directly controls the AUXADC via AHB bus accesses. For this reason -this device needs phandles to the AUXADC. Also it controls a mux in the -apmixedsys register space via AHB bus accesses, so a phandle to the APMIXEDSYS -is also needed. - -Required properties: -- compatible: - - "mediatek,mt8173-thermal" : For MT8173 family of SoCs - - "mediatek,mt2701-thermal" : For MT2701 family of SoCs - - "mediatek,mt2712-thermal" : For MT2712 family of SoCs - - "mediatek,mt7622-thermal" : For MT7622 SoC - - "mediatek,mt7981-thermal", "mediatek,mt7986-thermal" : For MT7981 SoC - - "mediatek,mt7986-thermal" : For MT7986 SoC - - "mediatek,mt8183-thermal" : For MT8183 family of SoCs - - "mediatek,mt8365-thermal" : For MT8365 family of SoCs - - "mediatek,mt8516-thermal", "mediatek,mt2701-thermal : For MT8516 family of SoCs -- reg: Address range of the thermal controller -- interrupts: IRQ for the thermal controller -- clocks, clock-names: Clocks needed for the thermal controller. required - clocks are: - "therm": Main clock needed for register access - "auxadc": The AUXADC clock -- mediatek,auxadc: A phandle to the AUXADC which the thermal controller uses -- mediatek,apmixedsys: A phandle to the APMIXEDSYS controller. -- #thermal-sensor-cells : Should be 0. See Documentation/devicetree/bindings/thermal/thermal-sensor.yaml for a description. - -Optional properties: -- resets: Reference to the reset controller controlling the thermal controller. -- nvmem-cells: A phandle to the calibration data provided by a nvmem device. If - unspecified default values shall be used. -- nvmem-cell-names: Should be "calibration-data" - -Example: - - thermal: thermal@1100b000 { - #thermal-sensor-cells = <1>; - compatible = "mediatek,mt8173-thermal"; - reg = <0 0x1100b000 0 0x1000>; - interrupts = <0 70 IRQ_TYPE_LEVEL_LOW>; - clocks = <&pericfg CLK_PERI_THERM>, <&pericfg CLK_PERI_AUXADC>; - clock-names = "therm", "auxadc"; - resets = <&pericfg MT8173_PERI_THERM_SW_RST>; - reset-names = "therm"; - mediatek,auxadc = <&auxadc>; - mediatek,apmixedsys = <&apmixedsys>; - nvmem-cells = <&thermal_calibration_data>; - nvmem-cell-names = "calibration-data"; - }; diff --git a/Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm-hc.yaml b/Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm-hc.yaml index 01253d58bf9f..7541e27704ca 100644 --- a/Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm-hc.yaml +++ b/Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm-hc.yaml @@ -114,12 +114,14 @@ examples: - | #include <dt-bindings/iio/qcom,spmi-vadc.h> #include <dt-bindings/interrupt-controller/irq.h> - spmi_bus { + + pmic { #address-cells = <1>; #size-cells = <0>; + pm8998_adc: adc@3100 { - reg = <0x3100>; compatible = "qcom,spmi-adc-rev2"; + reg = <0x3100>; #address-cells = <1>; #size-cells = <0>; #io-channel-cells = <1>; @@ -130,7 +132,7 @@ examples: }; }; - pm8998_adc_tm: adc-tm@3400 { + adc-tm@3400 { compatible = "qcom,spmi-adc-tm-hc"; reg = <0x3400>; interrupts = <0x2 0x34 0x0 IRQ_TYPE_EDGE_RISING>; diff --git a/Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm5.yaml b/Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm5.yaml index 3c81def03c84..d9d2657287cb 100644 --- a/Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm5.yaml +++ b/Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm5.yaml @@ -167,12 +167,14 @@ examples: - | #include <dt-bindings/iio/qcom,spmi-vadc.h> #include <dt-bindings/interrupt-controller/irq.h> - spmi_bus { + + pmic { #address-cells = <1>; #size-cells = <0>; + pm8150b_adc: adc@3100 { - reg = <0x3100>; compatible = "qcom,spmi-adc5"; + reg = <0x3100>; #address-cells = <1>; #size-cells = <0>; #io-channel-cells = <1>; @@ -186,7 +188,7 @@ examples: }; }; - pm8150b_adc_tm: adc-tm@3500 { + adc-tm@3500 { compatible = "qcom,spmi-adc-tm5"; reg = <0x3500>; interrupts = <0x2 0x35 0x0 IRQ_TYPE_EDGE_RISING>; @@ -207,12 +209,14 @@ examples: #include <dt-bindings/iio/qcom,spmi-adc7-pmk8350.h> #include <dt-bindings/iio/qcom,spmi-adc7-pm8350.h> #include <dt-bindings/interrupt-controller/irq.h> - spmi_bus { + + pmic { #address-cells = <1>; #size-cells = <0>; + pmk8350_vadc: adc@3100 { - reg = <0x3100>; compatible = "qcom,spmi-adc7"; + reg = <0x3100>; #address-cells = <1>; #size-cells = <0>; #io-channel-cells = <1>; @@ -233,7 +237,7 @@ examples: }; }; - pmk8350_adc_tm: adc-tm@3400 { + adc-tm@3400 { compatible = "qcom,spmi-adc-tm5-gen2"; reg = <0x3400>; interrupts = <0x0 0x34 0x0 IRQ_TYPE_EDGE_RISING>; diff --git a/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml b/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml index 437b74732886..99d9c526c0b6 100644 --- a/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml +++ b/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml @@ -66,6 +66,7 @@ properties: - qcom,sm8350-tsens - qcom,sm8450-tsens - qcom,sm8550-tsens + - qcom,sm8650-tsens - const: qcom,tsens-v2 - description: v2 of TSENS with combined interrupt diff --git a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml index 4a8dabc48170..dbd52620d293 100644 --- a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml +++ b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml @@ -75,6 +75,22 @@ patternProperties: framework and assumes that the thermal sensors in this zone support interrupts. + critical-action: + $ref: /schemas/types.yaml#/definitions/string + description: | + The action the OS should perform after the critical temperature is reached. + By default the system will shutdown as a safe action to prevent damage + to the hardware, if the property is not set. + The shutdown action should be always the default and preferred one. + Choose 'reboot' with care, as the hardware may be in thermal stress, + thus leading to infinite reboots that may cause damage to the hardware. + Make sure the firmware/bootloader will act as the last resort and take + over the thermal control. + + enum: + - shutdown + - reboot + thermal-sensors: $ref: /schemas/types.yaml#/definitions/phandle-array maxItems: 1 diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 1208ab0ed45f..4748e8061253 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -292,6 +292,7 @@ static int acpi_thermal_adjust_trip(struct thermal_trip *trip, void *data) struct acpi_thermal_trip *acpi_trip = trip->priv; struct adjust_trip_data *atd = data; struct acpi_thermal *tz = atd->tz; + int temp; if (!acpi_trip || !acpi_thermal_trip_valid(acpi_trip)) return 0; @@ -302,9 +303,11 @@ static int acpi_thermal_adjust_trip(struct thermal_trip *trip, void *data) acpi_thermal_update_trip_devices(tz, trip); if (acpi_thermal_trip_valid(acpi_trip)) - trip->temperature = acpi_thermal_temp(tz, acpi_trip->temp_dk); + temp = acpi_thermal_temp(tz, acpi_trip->temp_dk); else - trip->temperature = THERMAL_TEMP_INVALID; + temp = THERMAL_TEMP_INVALID; + + thermal_zone_set_trip_temp(tz->thermal_zone, trip, temp); return 0; } diff --git a/drivers/thermal/amlogic_thermal.c b/drivers/thermal/amlogic_thermal.c index 5877cde25b79..df7a5ed55385 100644 --- a/drivers/thermal/amlogic_thermal.c +++ b/drivers/thermal/amlogic_thermal.c @@ -167,13 +167,11 @@ static int amlogic_thermal_enable(struct amlogic_thermal *data) return 0; } -static int amlogic_thermal_disable(struct amlogic_thermal *data) +static void amlogic_thermal_disable(struct amlogic_thermal *data) { regmap_update_bits(data->regmap, TSENSOR_CFG_REG1, TSENSOR_CFG_REG1_ENABLE, 0); clk_disable_unprepare(data->clk); - - return 0; } static int amlogic_thermal_get_temp(struct thermal_zone_device *tz, int *temp) @@ -298,27 +296,30 @@ static void amlogic_thermal_remove(struct platform_device *pdev) amlogic_thermal_disable(data); } -static int __maybe_unused amlogic_thermal_suspend(struct device *dev) +static int amlogic_thermal_suspend(struct device *dev) { struct amlogic_thermal *data = dev_get_drvdata(dev); - return amlogic_thermal_disable(data); + amlogic_thermal_disable(data); + + return 0; } -static int __maybe_unused amlogic_thermal_resume(struct device *dev) +static int amlogic_thermal_resume(struct device *dev) { struct amlogic_thermal *data = dev_get_drvdata(dev); return amlogic_thermal_enable(data); } -static SIMPLE_DEV_PM_OPS(amlogic_thermal_pm_ops, - amlogic_thermal_suspend, amlogic_thermal_resume); +static DEFINE_SIMPLE_DEV_PM_OPS(amlogic_thermal_pm_ops, + amlogic_thermal_suspend, + amlogic_thermal_resume); static struct platform_driver amlogic_thermal_driver = { .driver = { .name = "amlogic_thermal", - .pm = &amlogic_thermal_pm_ops, + .pm = pm_ptr(&amlogic_thermal_pm_ops), .of_match_table = of_amlogic_thermal_match, }, .probe = amlogic_thermal_probe, diff --git a/drivers/thermal/cpuidle_cooling.c b/drivers/thermal/cpuidle_cooling.c index 69f4c0a8dfcc..f678c1281862 100644 --- a/drivers/thermal/cpuidle_cooling.c +++ b/drivers/thermal/cpuidle_cooling.c @@ -66,7 +66,7 @@ static unsigned int cpuidle_cooling_runtime(unsigned int idle_duration_us, * @state : a pointer to the state variable to be filled * * The function always returns 100 as the injection ratio. It is - * percentile based for consistency accross different platforms. + * percentile based for consistency across different platforms. * * Return: The function can not fail, it is always zero */ @@ -146,7 +146,7 @@ static int cpuidle_cooling_set_cur_state(struct thermal_cooling_device *cdev, return 0; } -/** +/* * cpuidle_cooling_ops - thermal cooling device ops */ static struct thermal_cooling_device_ops cpuidle_cooling_ops = { diff --git a/drivers/thermal/gov_power_allocator.c b/drivers/thermal/gov_power_allocator.c index 83d4f451b1a9..7b6aa265ff6a 100644 --- a/drivers/thermal/gov_power_allocator.c +++ b/drivers/thermal/gov_power_allocator.c @@ -47,6 +47,22 @@ static inline s64 div_frac(s64 x, s64 y) } /** + * struct power_actor - internal power information for power actor + * @req_power: requested power value (not weighted) + * @max_power: max allocatable power for this actor + * @granted_power: granted power for this actor + * @extra_actor_power: extra power that this actor can receive + * @weighted_req_power: weighted requested power as input to IPA + */ +struct power_actor { + u32 req_power; + u32 max_power; + u32 granted_power; + u32 extra_actor_power; + u32 weighted_req_power; +}; + +/** * struct power_allocator_params - parameters for the power allocator governor * @allocated_tzp: whether we have allocated tzp for this thermal zone and * it needs to be freed on unbind @@ -59,9 +75,12 @@ static inline s64 div_frac(s64 x, s64 y) * governor switches on when this trip point is crossed. * If the thermal zone only has one passive trip point, * @trip_switch_on should be NULL. - * @trip_max_desired_temperature: last passive trip point of the thermal - * zone. The temperature we are - * controlling for. + * @trip_max: last passive trip point of the thermal zone. The + * temperature we are controlling for. + * @total_weight: Sum of all thermal instances weights + * @num_actors: number of cooling devices supporting IPA callbacks + * @buffer_size: internal buffer size, to avoid runtime re-calculation + * @power: buffer for all power actors internal power information */ struct power_allocator_params { bool allocated_tzp; @@ -69,9 +88,20 @@ struct power_allocator_params { s32 prev_err; u32 sustainable_power; const struct thermal_trip *trip_switch_on; - const struct thermal_trip *trip_max_desired_temperature; + const struct thermal_trip *trip_max; + int total_weight; + unsigned int num_actors; + unsigned int buffer_size; + struct power_actor *power; }; +static bool power_actor_is_valid(struct power_allocator_params *params, + struct thermal_instance *instance) +{ + return (instance->trip == params->trip_max && + cdev_is_power_actor(instance->cdev)); +} + /** * estimate_sustainable_power() - Estimate the sustainable power of a thermal zone * @tz: thermal zone we are operating in @@ -85,20 +115,17 @@ struct power_allocator_params { */ static u32 estimate_sustainable_power(struct thermal_zone_device *tz) { - u32 sustainable_power = 0; - struct thermal_instance *instance; struct power_allocator_params *params = tz->governor_data; + struct thermal_cooling_device *cdev; + struct thermal_instance *instance; + u32 sustainable_power = 0; + u32 min_power; list_for_each_entry(instance, &tz->thermal_instances, tz_node) { - struct thermal_cooling_device *cdev = instance->cdev; - u32 min_power; - - if (instance->trip != params->trip_max_desired_temperature) - continue; - - if (!cdev_is_power_actor(cdev)) + if (!power_actor_is_valid(params, instance)) continue; + cdev = instance->cdev; if (cdev->ops->state2power(cdev, instance->upper, &min_power)) continue; @@ -212,10 +239,10 @@ static u32 pid_controller(struct thermal_zone_device *tz, int control_temp, u32 max_allocatable_power) { + struct power_allocator_params *params = tz->governor_data; s64 p, i, d, power_range; s32 err, max_power_frac; u32 sustainable_power; - struct power_allocator_params *params = tz->governor_data; max_power_frac = int_to_frac(max_allocatable_power); @@ -303,15 +330,10 @@ power_actor_set_power(struct thermal_cooling_device *cdev, /** * divvy_up_power() - divvy the allocated power between the actors - * @req_power: each actor's requested power - * @max_power: each actor's maximum available power - * @num_actors: size of the @req_power, @max_power and @granted_power's array - * @total_req_power: sum of @req_power + * @power: buffer for all power actors internal power information + * @num_actors: number of power actors in this thermal zone + * @total_req_power: sum of all weighted requested power for all actors * @power_range: total allocated power - * @granted_power: output array: each actor's granted power - * @extra_actor_power: an appropriately sized array to be used in the - * function as temporary storage of the extra power given - * to the actors * * This function divides the total allocated power (@power_range) * fairly between the actors. It first tries to give each actor a @@ -324,15 +346,12 @@ power_actor_set_power(struct thermal_cooling_device *cdev, * If any actor received more than their maximum power, then that * surplus is re-divvied among the actors based on how far they are * from their respective maximums. - * - * Granted power for each actor is written to @granted_power, which - * should've been allocated by the calling function. */ -static void divvy_up_power(u32 *req_power, u32 *max_power, int num_actors, - u32 total_req_power, u32 power_range, - u32 *granted_power, u32 *extra_actor_power) +static void divvy_up_power(struct power_actor *power, int num_actors, + u32 total_req_power, u32 power_range) { - u32 extra_power, capped_extra_power; + u32 capped_extra_power = 0; + u32 extra_power = 0; int i; /* @@ -341,24 +360,23 @@ static void divvy_up_power(u32 *req_power, u32 *max_power, int num_actors, if (!total_req_power) total_req_power = 1; - capped_extra_power = 0; - extra_power = 0; for (i = 0; i < num_actors; i++) { - u64 req_range = (u64)req_power[i] * power_range; + struct power_actor *pa = &power[i]; + u64 req_range = (u64)pa->req_power * power_range; - granted_power[i] = DIV_ROUND_CLOSEST_ULL(req_range, - total_req_power); + pa->granted_power = DIV_ROUND_CLOSEST_ULL(req_range, + total_req_power); - if (granted_power[i] > max_power[i]) { - extra_power += granted_power[i] - max_power[i]; - granted_power[i] = max_power[i]; + if (pa->granted_power > pa->max_power) { + extra_power += pa->granted_power - pa->max_power; + pa->granted_power = pa->max_power; } - extra_actor_power[i] = max_power[i] - granted_power[i]; - capped_extra_power += extra_actor_power[i]; + pa->extra_actor_power = pa->max_power - pa->granted_power; + capped_extra_power += pa->extra_actor_power; } - if (!extra_power) + if (!extra_power || !capped_extra_power) return; /* @@ -366,127 +384,95 @@ static void divvy_up_power(u32 *req_power, u32 *max_power, int num_actors, * how far they are from the max */ extra_power = min(extra_power, capped_extra_power); - if (capped_extra_power > 0) - for (i = 0; i < num_actors; i++) { - u64 extra_range = (u64)extra_actor_power[i] * extra_power; - granted_power[i] += DIV_ROUND_CLOSEST_ULL(extra_range, - capped_extra_power); - } + + for (i = 0; i < num_actors; i++) { + struct power_actor *pa = &power[i]; + u64 extra_range = pa->extra_actor_power; + + extra_range *= extra_power; + pa->granted_power += DIV_ROUND_CLOSEST_ULL(extra_range, + capped_extra_power); + } } -static int allocate_power(struct thermal_zone_device *tz, - int control_temp) +static int allocate_power(struct thermal_zone_device *tz, int control_temp) { - struct thermal_instance *instance; struct power_allocator_params *params = tz->governor_data; - const struct thermal_trip *trip_max_desired_temperature = - params->trip_max_desired_temperature; - u32 *req_power, *max_power, *granted_power, *extra_actor_power; - u32 *weighted_req_power; - u32 total_req_power, max_allocatable_power, total_weighted_req_power; - u32 total_granted_power, power_range; - int i, num_actors, total_weight, ret = 0; - - num_actors = 0; - total_weight = 0; - list_for_each_entry(instance, &tz->thermal_instances, tz_node) { - if ((instance->trip == trip_max_desired_temperature) && - cdev_is_power_actor(instance->cdev)) { - num_actors++; - total_weight += instance->weight; - } - } + unsigned int num_actors = params->num_actors; + struct power_actor *power = params->power; + struct thermal_cooling_device *cdev; + struct thermal_instance *instance; + u32 total_weighted_req_power = 0; + u32 max_allocatable_power = 0; + u32 total_granted_power = 0; + u32 total_req_power = 0; + u32 power_range, weight; + int i = 0, ret; if (!num_actors) return -ENODEV; - /* - * We need to allocate five arrays of the same size: - * req_power, max_power, granted_power, extra_actor_power and - * weighted_req_power. They are going to be needed until this - * function returns. Allocate them all in one go to simplify - * the allocation and deallocation logic. - */ - BUILD_BUG_ON(sizeof(*req_power) != sizeof(*max_power)); - BUILD_BUG_ON(sizeof(*req_power) != sizeof(*granted_power)); - BUILD_BUG_ON(sizeof(*req_power) != sizeof(*extra_actor_power)); - BUILD_BUG_ON(sizeof(*req_power) != sizeof(*weighted_req_power)); - req_power = kcalloc(num_actors * 5, sizeof(*req_power), GFP_KERNEL); - if (!req_power) - return -ENOMEM; - - max_power = &req_power[num_actors]; - granted_power = &req_power[2 * num_actors]; - extra_actor_power = &req_power[3 * num_actors]; - weighted_req_power = &req_power[4 * num_actors]; - - i = 0; - total_weighted_req_power = 0; - total_req_power = 0; - max_allocatable_power = 0; + /* Clean all buffers for new power estimations */ + memset(power, 0, params->buffer_size); list_for_each_entry(instance, &tz->thermal_instances, tz_node) { - int weight; - struct thermal_cooling_device *cdev = instance->cdev; + struct power_actor *pa = &power[i]; - if (instance->trip != trip_max_desired_temperature) + if (!power_actor_is_valid(params, instance)) continue; - if (!cdev_is_power_actor(cdev)) - continue; + cdev = instance->cdev; - if (cdev->ops->get_requested_power(cdev, &req_power[i])) + ret = cdev->ops->get_requested_power(cdev, &pa->req_power); + if (ret) continue; - if (!total_weight) + if (!params->total_weight) weight = 1 << FRAC_BITS; else weight = instance->weight; - weighted_req_power[i] = frac_to_int(weight * req_power[i]); + pa->weighted_req_power = frac_to_int(weight * pa->req_power); - if (cdev->ops->state2power(cdev, instance->lower, - &max_power[i])) + ret = cdev->ops->state2power(cdev, instance->lower, + &pa->max_power); + if (ret) continue; - total_req_power += req_power[i]; - max_allocatable_power += max_power[i]; - total_weighted_req_power += weighted_req_power[i]; + total_req_power += pa->req_power; + max_allocatable_power += pa->max_power; + total_weighted_req_power += pa->weighted_req_power; i++; } power_range = pid_controller(tz, control_temp, max_allocatable_power); - divvy_up_power(weighted_req_power, max_power, num_actors, - total_weighted_req_power, power_range, granted_power, - extra_actor_power); + divvy_up_power(power, num_actors, total_weighted_req_power, + power_range); - total_granted_power = 0; i = 0; list_for_each_entry(instance, &tz->thermal_instances, tz_node) { - if (instance->trip != trip_max_desired_temperature) - continue; + struct power_actor *pa = &power[i]; - if (!cdev_is_power_actor(instance->cdev)) + if (!power_actor_is_valid(params, instance)) continue; power_actor_set_power(instance->cdev, instance, - granted_power[i]); - total_granted_power += granted_power[i]; + pa->granted_power); + total_granted_power += pa->granted_power; + trace_thermal_power_actor(tz, i, pa->req_power, + pa->granted_power); i++; } - trace_thermal_power_allocator(tz, req_power, total_req_power, - granted_power, total_granted_power, + trace_thermal_power_allocator(tz, total_req_power, total_granted_power, num_actors, power_range, max_allocatable_power, tz->temperature, control_temp - tz->temperature); - kfree(req_power); - - return ret; + return 0; } /** @@ -531,13 +517,13 @@ static void get_governor_trips(struct thermal_zone_device *tz, if (last_passive) { params->trip_switch_on = first_passive; - params->trip_max_desired_temperature = last_passive; + params->trip_max = last_passive; } else if (first_passive) { params->trip_switch_on = NULL; - params->trip_max_desired_temperature = first_passive; + params->trip_max = first_passive; } else { params->trip_switch_on = NULL; - params->trip_max_desired_temperature = last_active; + params->trip_max = last_active; } } @@ -549,19 +535,19 @@ static void reset_pid_controller(struct power_allocator_params *params) static void allow_maximum_power(struct thermal_zone_device *tz, bool update) { - struct thermal_instance *instance; struct power_allocator_params *params = tz->governor_data; + struct thermal_cooling_device *cdev; + struct thermal_instance *instance; u32 req_power; list_for_each_entry(instance, &tz->thermal_instances, tz_node) { - struct thermal_cooling_device *cdev = instance->cdev; - - if (instance->trip != params->trip_max_desired_temperature || - (!cdev_is_power_actor(instance->cdev))) + if (!power_actor_is_valid(params, instance)) continue; + cdev = instance->cdev; + instance->target = 0; - mutex_lock(&instance->cdev->lock); + mutex_lock(&cdev->lock); /* * Call for updating the cooling devices local stats and avoid * periods of dozen of seconds when those have not been @@ -570,9 +556,9 @@ static void allow_maximum_power(struct thermal_zone_device *tz, bool update) cdev->ops->get_requested_power(cdev, &req_power); if (update) - __thermal_cdev_update(instance->cdev); + __thermal_cdev_update(cdev); - mutex_unlock(&instance->cdev->lock); + mutex_unlock(&cdev->lock); } } @@ -580,30 +566,99 @@ static void allow_maximum_power(struct thermal_zone_device *tz, bool update) * check_power_actors() - Check all cooling devices and warn when they are * not power actors * @tz: thermal zone to operate on + * @params: power allocator private data * * Check all cooling devices in the @tz and warn every time they are missing * power actor API. The warning should help to investigate the issue, which * could be e.g. lack of Energy Model for a given device. * - * Return: 0 on success, -EINVAL if any cooling device does not implement - * the power actor API. + * If all of the cooling devices currently attached to @tz implement the power + * actor API, return the number of them (which may be 0, because some cooling + * devices may be attached later). Otherwise, return -EINVAL. */ -static int check_power_actors(struct thermal_zone_device *tz) +static int check_power_actors(struct thermal_zone_device *tz, + struct power_allocator_params *params) { struct thermal_instance *instance; int ret = 0; list_for_each_entry(instance, &tz->thermal_instances, tz_node) { + if (instance->trip != params->trip_max) + continue; + if (!cdev_is_power_actor(instance->cdev)) { dev_warn(&tz->device, "power_allocator: %s is not a power actor\n", instance->cdev->type); - ret = -EINVAL; + return -EINVAL; } + ret++; } return ret; } +static int allocate_actors_buffer(struct power_allocator_params *params, + int num_actors) +{ + int ret; + + kfree(params->power); + + /* There might be no cooling devices yet. */ + if (!num_actors) { + ret = -EINVAL; + goto clean_state; + } + + params->power = kcalloc(num_actors, sizeof(struct power_actor), + GFP_KERNEL); + if (!params->power) { + ret = -ENOMEM; + goto clean_state; + } + + params->num_actors = num_actors; + params->buffer_size = num_actors * sizeof(struct power_actor); + + return 0; + +clean_state: + params->num_actors = 0; + params->buffer_size = 0; + params->power = NULL; + return ret; +} + +static void power_allocator_update_tz(struct thermal_zone_device *tz, + enum thermal_notify_event reason) +{ + struct power_allocator_params *params = tz->governor_data; + struct thermal_instance *instance; + int num_actors = 0; + + switch (reason) { + case THERMAL_TZ_BIND_CDEV: + case THERMAL_TZ_UNBIND_CDEV: + list_for_each_entry(instance, &tz->thermal_instances, tz_node) + if (power_actor_is_valid(params, instance)) + num_actors++; + + if (num_actors == params->num_actors) + return; + + allocate_actors_buffer(params, num_actors); + break; + case THERMAL_INSTANCE_WEIGHT_CHANGED: + params->total_weight = 0; + list_for_each_entry(instance, &tz->thermal_instances, tz_node) + if (power_actor_is_valid(params, instance)) + params->total_weight += instance->weight; + break; + default: + break; + } +} + /** * power_allocator_bind() - bind the power_allocator governor to a thermal zone * @tz: thermal zone to bind it to @@ -616,17 +671,34 @@ static int check_power_actors(struct thermal_zone_device *tz) */ static int power_allocator_bind(struct thermal_zone_device *tz) { - int ret; struct power_allocator_params *params; - - ret = check_power_actors(tz); - if (ret) - return ret; + int ret; params = kzalloc(sizeof(*params), GFP_KERNEL); if (!params) return -ENOMEM; + get_governor_trips(tz, params); + if (!params->trip_max) { + dev_warn(&tz->device, "power_allocator: missing trip_max\n"); + kfree(params); + return -EINVAL; + } + + ret = check_power_actors(tz, params); + if (ret < 0) { + dev_warn(&tz->device, "power_allocator: binding failed\n"); + kfree(params); + return ret; + } + + ret = allocate_actors_buffer(params, ret); + if (ret) { + dev_warn(&tz->device, "power_allocator: allocation failed\n"); + kfree(params); + return ret; + } + if (!tz->tzp) { tz->tzp = kzalloc(sizeof(*tz->tzp), GFP_KERNEL); if (!tz->tzp) { @@ -640,14 +712,9 @@ static int power_allocator_bind(struct thermal_zone_device *tz) if (!tz->tzp->sustainable_power) dev_warn(&tz->device, "power_allocator: sustainable_power will be estimated\n"); - get_governor_trips(tz, params); - - if (params->trip_max_desired_temperature) { - int temp = params->trip_max_desired_temperature->temperature; - - estimate_pid_constants(tz, tz->tzp->sustainable_power, - params->trip_switch_on, temp); - } + estimate_pid_constants(tz, tz->tzp->sustainable_power, + params->trip_switch_on, + params->trip_max->temperature); reset_pid_controller(params); @@ -656,6 +723,7 @@ static int power_allocator_bind(struct thermal_zone_device *tz) return 0; free_params: + kfree(params->power); kfree(params); return ret; @@ -672,6 +740,7 @@ static void power_allocator_unbind(struct thermal_zone_device *tz) tz->tzp = NULL; } + kfree(params->power); kfree(tz->governor_data); tz->governor_data = NULL; } @@ -688,7 +757,7 @@ static int power_allocator_throttle(struct thermal_zone_device *tz, * We get called for every trip point but we only need to do * our calculations once */ - if (trip != params->trip_max_desired_temperature) + if (trip != params->trip_max) return 0; trip = params->trip_switch_on; @@ -702,7 +771,7 @@ static int power_allocator_throttle(struct thermal_zone_device *tz, tz->passive = 1; - return allocate_power(tz, params->trip_max_desired_temperature->temperature); + return allocate_power(tz, params->trip_max->temperature); } static struct thermal_governor thermal_gov_power_allocator = { @@ -710,5 +779,6 @@ static struct thermal_governor thermal_gov_power_allocator = { .bind_to_tz = power_allocator_bind, .unbind_from_tz = power_allocator_unbind, .throttle = power_allocator_throttle, + .update_tz = power_allocator_update_tz, }; THERMAL_GOVERNOR_DECLARE(thermal_gov_power_allocator); diff --git a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c index a03b67579dd9..3e4bfe817fac 100644 --- a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c +++ b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c @@ -225,7 +225,8 @@ EXPORT_SYMBOL_GPL(int340x_thermal_zone_remove); static int int340x_update_one_trip(struct thermal_trip *trip, void *arg) { - struct acpi_device *zone_adev = arg; + struct int34x_thermal_zone *int34x_zone = arg; + struct acpi_device *zone_adev = int34x_zone->adev; int temp, err; switch (trip->type) { @@ -249,14 +250,15 @@ static int int340x_update_one_trip(struct thermal_trip *trip, void *arg) if (err) temp = THERMAL_TEMP_INVALID; - trip->temperature = temp; + thermal_zone_set_trip_temp(int34x_zone->zone, trip, temp); + return 0; } void int340x_thermal_update_trips(struct int34x_thermal_zone *int34x_zone) { thermal_zone_for_each_trip(int34x_zone->zone, int340x_update_one_trip, - int34x_zone->adev); + int34x_zone); } EXPORT_SYMBOL_GPL(int340x_thermal_update_trips); diff --git a/drivers/thermal/intel/intel_hfi.c b/drivers/thermal/intel/intel_hfi.c index c69db6c90869..22445403b520 100644 --- a/drivers/thermal/intel/intel_hfi.c +++ b/drivers/thermal/intel/intel_hfi.c @@ -24,6 +24,7 @@ #include <linux/bitops.h> #include <linux/cpufeature.h> #include <linux/cpumask.h> +#include <linux/delay.h> #include <linux/gfp.h> #include <linux/io.h> #include <linux/kernel.h> @@ -347,6 +348,52 @@ static void init_hfi_instance(struct hfi_instance *hfi_instance) hfi_instance->data = hfi_instance->hdr + hfi_features.hdr_size; } +/* Caller must hold hfi_instance_lock. */ +static void hfi_enable(void) +{ + u64 msr_val; + + rdmsrl(MSR_IA32_HW_FEEDBACK_CONFIG, msr_val); + msr_val |= HW_FEEDBACK_CONFIG_HFI_ENABLE_BIT; + wrmsrl(MSR_IA32_HW_FEEDBACK_CONFIG, msr_val); +} + +static void hfi_set_hw_table(struct hfi_instance *hfi_instance) +{ + phys_addr_t hw_table_pa; + u64 msr_val; + + hw_table_pa = virt_to_phys(hfi_instance->hw_table); + msr_val = hw_table_pa | HW_FEEDBACK_PTR_VALID_BIT; + wrmsrl(MSR_IA32_HW_FEEDBACK_PTR, msr_val); +} + +/* Caller must hold hfi_instance_lock. */ +static void hfi_disable(void) +{ + u64 msr_val; + int i; + + rdmsrl(MSR_IA32_HW_FEEDBACK_CONFIG, msr_val); + msr_val &= ~HW_FEEDBACK_CONFIG_HFI_ENABLE_BIT; + wrmsrl(MSR_IA32_HW_FEEDBACK_CONFIG, msr_val); + + /* + * Wait for hardware to acknowledge the disabling of HFI. Some + * processors may not do it. Wait for ~2ms. This is a reasonable + * time for hardware to complete any pending actions on the HFI + * memory. + */ + for (i = 0; i < 2000; i++) { + rdmsrl(MSR_IA32_PACKAGE_THERM_STATUS, msr_val); + if (msr_val & PACKAGE_THERM_STATUS_HFI_UPDATED) + break; + + udelay(1); + cpu_relax(); + } +} + /** * intel_hfi_online() - Enable HFI on @cpu * @cpu: CPU in which the HFI will be enabled @@ -364,8 +411,6 @@ void intel_hfi_online(unsigned int cpu) { struct hfi_instance *hfi_instance; struct hfi_cpu_info *info; - phys_addr_t hw_table_pa; - u64 msr_val; u16 die_id; /* Nothing to do if hfi_instances are missing. */ @@ -392,25 +437,26 @@ void intel_hfi_online(unsigned int cpu) /* * Now check if the HFI instance of the package/die of @cpu has been * initialized (by checking its header). In such case, all we have to - * do is to add @cpu to this instance's cpumask. + * do is to add @cpu to this instance's cpumask and enable the instance + * if needed. */ mutex_lock(&hfi_instance_lock); - if (hfi_instance->hdr) { - cpumask_set_cpu(cpu, hfi_instance->cpus); - goto unlock; - } + if (hfi_instance->hdr) + goto enable; /* * Hardware is programmed with the physical address of the first page * frame of the table. Hence, the allocated memory must be page-aligned. + * + * Some processors do not forget the initial address of the HFI table + * even after having been reprogrammed. Keep using the same pages. Do + * not free them. */ hfi_instance->hw_table = alloc_pages_exact(hfi_features.nr_table_pages, GFP_KERNEL | __GFP_ZERO); if (!hfi_instance->hw_table) goto unlock; - hw_table_pa = virt_to_phys(hfi_instance->hw_table); - /* * Allocate memory to keep a local copy of the table that * hardware generates. @@ -420,31 +466,20 @@ void intel_hfi_online(unsigned int cpu) if (!hfi_instance->local_table) goto free_hw_table; - /* - * Program the address of the feedback table of this die/package. On - * some processors, hardware remembers the old address of the HFI table - * even after having been reprogrammed and re-enabled. Thus, do not free - * the pages allocated for the table or reprogram the hardware with a - * new base address. Namely, program the hardware only once. - */ - msr_val = hw_table_pa | HW_FEEDBACK_PTR_VALID_BIT; - wrmsrl(MSR_IA32_HW_FEEDBACK_PTR, msr_val); - init_hfi_instance(hfi_instance); INIT_DELAYED_WORK(&hfi_instance->update_work, hfi_update_work_fn); raw_spin_lock_init(&hfi_instance->table_lock); raw_spin_lock_init(&hfi_instance->event_lock); +enable: cpumask_set_cpu(cpu, hfi_instance->cpus); - /* - * Enable the hardware feedback interface and never disable it. See - * comment on programming the address of the table. - */ - rdmsrl(MSR_IA32_HW_FEEDBACK_CONFIG, msr_val); - msr_val |= HW_FEEDBACK_CONFIG_HFI_ENABLE_BIT; - wrmsrl(MSR_IA32_HW_FEEDBACK_CONFIG, msr_val); + /* Enable this HFI instance if this is its first online CPU. */ + if (cpumask_weight(hfi_instance->cpus) == 1) { + hfi_set_hw_table(hfi_instance); + hfi_enable(); + } unlock: mutex_unlock(&hfi_instance_lock); @@ -484,6 +519,10 @@ void intel_hfi_offline(unsigned int cpu) mutex_lock(&hfi_instance_lock); cpumask_clear_cpu(cpu, hfi_instance->cpus); + + if (!cpumask_weight(hfi_instance->cpus)) + hfi_disable(); + mutex_unlock(&hfi_instance_lock); } diff --git a/drivers/thermal/loongson2_thermal.c b/drivers/thermal/loongson2_thermal.c index 133098dc0854..99ca0c7bc41c 100644 --- a/drivers/thermal/loongson2_thermal.c +++ b/drivers/thermal/loongson2_thermal.c @@ -127,7 +127,7 @@ static int loongson2_thermal_probe(struct platform_device *pdev) if (!IS_ERR(tzd)) break; - if (PTR_ERR(tzd) != ENODEV) + if (PTR_ERR(tzd) != -ENODEV) continue; return dev_err_probe(dev, PTR_ERR(tzd), "failed to register"); diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index 123ec81e1943..6482513bfe66 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -138,12 +138,10 @@ enum soc_type { /** * struct exynos_tmu_data : A structure to hold the private data of the TMU * driver - * @id: identifier of the one instance of the TMU controller. * @base: base address of the single instance of the TMU controller. * @base_second: base address of the common registers of the TMU controller. * @irq: irq number of the TMU controller. * @soc: id of the SOC type. - * @irq_work: pointer to the irq work structure. * @lock: lock to implement synchronization. * @clk: pointer to the clock structure. * @clk_sec: pointer to the clock structure for accessing the base_second. @@ -159,13 +157,13 @@ enum soc_type { * @reference_voltage: reference voltage of amplifier * in the positive-TC generator block * 0 < reference_voltage <= 31 - * @regulator: pointer to the TMU regulator structure. - * @reg_conf: pointer to structure to register with core thermal. * @tzd: pointer to thermal_zone_device structure - * @ntrip: number of supported trip points. * @enabled: current status of TMU device - * @tmu_set_trip_temp: SoC specific method to set trip (rising threshold) - * @tmu_set_trip_hyst: SoC specific to set hysteresis (falling threshold) + * @tmu_set_low_temp: SoC specific method to set trip (falling threshold) + * @tmu_set_high_temp: SoC specific method to set trip (rising threshold) + * @tmu_set_crit_temp: SoC specific method to set critical temperature + * @tmu_disable_low: SoC specific method to disable an interrupt (falling threshold) + * @tmu_disable_high: SoC specific method to disable an interrupt (rising threshold) * @tmu_initialize: SoC specific TMU initialization method * @tmu_control: SoC specific TMU control method * @tmu_read: SoC specific TMU temperature read method @@ -173,12 +171,10 @@ enum soc_type { * @tmu_clear_irqs: SoC specific TMU interrupts clearing method */ struct exynos_tmu_data { - int id; void __iomem *base; void __iomem *base_second; int irq; enum soc_type soc; - struct work_struct irq_work; struct mutex lock; struct clk *clk, *clk_sec, *sclk; u32 cal_type; @@ -188,15 +184,14 @@ struct exynos_tmu_data { u16 temp_error1, temp_error2; u8 gain; u8 reference_voltage; - struct regulator *regulator; struct thermal_zone_device *tzd; - unsigned int ntrip; bool enabled; - void (*tmu_set_trip_temp)(struct exynos_tmu_data *data, int trip, - u8 temp); - void (*tmu_set_trip_hyst)(struct exynos_tmu_data *data, int trip, - u8 temp, u8 hyst); + void (*tmu_set_low_temp)(struct exynos_tmu_data *data, u8 temp); + void (*tmu_set_high_temp)(struct exynos_tmu_data *data, u8 temp); + void (*tmu_set_crit_temp)(struct exynos_tmu_data *data, u8 temp); + void (*tmu_disable_low)(struct exynos_tmu_data *data); + void (*tmu_disable_high)(struct exynos_tmu_data *data); void (*tmu_initialize)(struct platform_device *pdev); void (*tmu_control)(struct platform_device *pdev, bool on); int (*tmu_read)(struct exynos_tmu_data *data); @@ -258,25 +253,8 @@ static void sanitize_temp_error(struct exynos_tmu_data *data, u32 trim_info) static int exynos_tmu_initialize(struct platform_device *pdev) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); - struct thermal_zone_device *tzd = data->tzd; - int num_trips = thermal_zone_get_num_trips(tzd); unsigned int status; - int ret = 0, temp; - - ret = thermal_zone_get_crit_temp(tzd, &temp); - if (ret && data->soc != SOC_ARCH_EXYNOS5433) { /* FIXME */ - dev_err(&pdev->dev, - "No CRITICAL trip point defined in device tree!\n"); - goto out; - } - - if (num_trips > data->ntrip) { - dev_info(&pdev->dev, - "More trip points than supported by this TMU.\n"); - dev_info(&pdev->dev, - "%d trip points should be configured in polling mode.\n", - num_trips - data->ntrip); - } + int ret = 0; mutex_lock(&data->lock); clk_enable(data->clk); @@ -287,34 +265,44 @@ static int exynos_tmu_initialize(struct platform_device *pdev) if (!status) { ret = -EBUSY; } else { - int i, ntrips = - min_t(int, num_trips, data->ntrip); - data->tmu_initialize(pdev); + data->tmu_clear_irqs(data); + } - /* Write temperature code for rising and falling threshold */ - for (i = 0; i < ntrips; i++) { + if (!IS_ERR(data->clk_sec)) + clk_disable(data->clk_sec); + clk_disable(data->clk); + mutex_unlock(&data->lock); - struct thermal_trip trip; + return ret; +} - ret = thermal_zone_get_trip(tzd, i, &trip); - if (ret) - goto err; +static int exynos_thermal_zone_configure(struct platform_device *pdev) +{ + struct exynos_tmu_data *data = platform_get_drvdata(pdev); + struct thermal_zone_device *tzd = data->tzd; + int ret, temp; - data->tmu_set_trip_temp(data, i, trip.temperature / MCELSIUS); - data->tmu_set_trip_hyst(data, i, trip.temperature / MCELSIUS, - trip.hysteresis / MCELSIUS); - } + ret = thermal_zone_get_crit_temp(tzd, &temp); + if (ret) { + /* FIXME: Remove this special case */ + if (data->soc == SOC_ARCH_EXYNOS5433) + return 0; - data->tmu_clear_irqs(data); + dev_err(&pdev->dev, + "No CRITICAL trip point defined in device tree!\n"); + return ret; } -err: + + mutex_lock(&data->lock); + clk_enable(data->clk); + + data->tmu_set_crit_temp(data, temp / MCELSIUS); + clk_disable(data->clk); mutex_unlock(&data->lock); - if (!IS_ERR(data->clk_sec)) - clk_disable(data->clk_sec); -out: - return ret; + + return 0; } static u32 get_con_reg(struct exynos_tmu_data *data, u32 con) @@ -347,30 +335,74 @@ static void exynos_tmu_control(struct platform_device *pdev, bool on) mutex_unlock(&data->lock); } -static void exynos4210_tmu_set_trip_temp(struct exynos_tmu_data *data, - int trip_id, u8 temp) +static void exynos_tmu_update_bit(struct exynos_tmu_data *data, int reg_off, + int bit_off, bool enable) +{ + u32 interrupt_en; + + interrupt_en = readl(data->base + reg_off); + if (enable) + interrupt_en |= BIT(bit_off); + else + interrupt_en &= ~BIT(bit_off); + writel(interrupt_en, data->base + reg_off); +} + +static void exynos_tmu_update_temp(struct exynos_tmu_data *data, int reg_off, + int bit_off, u8 temp) { - struct thermal_trip trip; - u8 ref, th_code; + u16 tmu_temp_mask; + u32 th; - if (thermal_zone_get_trip(data->tzd, 0, &trip)) - return; + tmu_temp_mask = + (data->soc == SOC_ARCH_EXYNOS7) ? EXYNOS7_TMU_TEMP_MASK + : EXYNOS_TMU_TEMP_MASK; - ref = trip.temperature / MCELSIUS; + th = readl(data->base + reg_off); + th &= ~(tmu_temp_mask << bit_off); + th |= temp_to_code(data, temp) << bit_off; + writel(th, data->base + reg_off); +} - if (trip_id == 0) { - th_code = temp_to_code(data, ref); - writeb(th_code, data->base + EXYNOS4210_TMU_REG_THRESHOLD_TEMP); - } +static void exynos4210_tmu_set_low_temp(struct exynos_tmu_data *data, u8 temp) +{ + /* + * Failing thresholds are not supported on Exynos 4210. + * We use polling instead. + */ +} + +static void exynos4210_tmu_set_high_temp(struct exynos_tmu_data *data, u8 temp) +{ + temp = temp_to_code(data, temp); + writeb(temp, data->base + EXYNOS4210_TMU_REG_TRIG_LEVEL0 + 4); + exynos_tmu_update_bit(data, EXYNOS_TMU_REG_INTEN, + EXYNOS_TMU_INTEN_RISE0_SHIFT + 4, true); +} - temp -= ref; - writeb(temp, data->base + EXYNOS4210_TMU_REG_TRIG_LEVEL0 + trip_id * 4); +static void exynos4210_tmu_disable_low(struct exynos_tmu_data *data) +{ + /* Again, this is handled by polling. */ } -/* failing thresholds are not supported on Exynos4210 */ -static void exynos4210_tmu_set_trip_hyst(struct exynos_tmu_data *data, - int trip, u8 temp, u8 hyst) +static void exynos4210_tmu_disable_high(struct exynos_tmu_data *data) { + exynos_tmu_update_bit(data, EXYNOS_TMU_REG_INTEN, + EXYNOS_TMU_INTEN_RISE0_SHIFT + 4, false); +} + +static void exynos4210_tmu_set_crit_temp(struct exynos_tmu_data *data, u8 temp) +{ + /* + * Hardware critical temperature handling is not supported on Exynos 4210. + * We still set the critical temperature threshold, but this is only to + * make sure it is handled as soon as possible. It is just a normal interrupt. + */ + + temp = temp_to_code(data, temp); + writeb(temp, data->base + EXYNOS4210_TMU_REG_TRIG_LEVEL0 + 12); + exynos_tmu_update_bit(data, EXYNOS_TMU_REG_INTEN, + EXYNOS_TMU_INTEN_RISE0_SHIFT + 12, true); } static void exynos4210_tmu_initialize(struct platform_device *pdev) @@ -378,35 +410,35 @@ static void exynos4210_tmu_initialize(struct platform_device *pdev) struct exynos_tmu_data *data = platform_get_drvdata(pdev); sanitize_temp_error(data, readl(data->base + EXYNOS_TMU_REG_TRIMINFO)); + + writeb(0, data->base + EXYNOS4210_TMU_REG_THRESHOLD_TEMP); } -static void exynos4412_tmu_set_trip_temp(struct exynos_tmu_data *data, - int trip, u8 temp) +static void exynos4412_tmu_set_low_temp(struct exynos_tmu_data *data, u8 temp) { - u32 th, con; - - th = readl(data->base + EXYNOS_THD_TEMP_RISE); - th &= ~(0xff << 8 * trip); - th |= temp_to_code(data, temp) << 8 * trip; - writel(th, data->base + EXYNOS_THD_TEMP_RISE); + exynos_tmu_update_temp(data, EXYNOS_THD_TEMP_FALL, 0, temp); + exynos_tmu_update_bit(data, EXYNOS_TMU_REG_INTEN, + EXYNOS_TMU_INTEN_FALL0_SHIFT, true); +} - if (trip == 3) { - con = readl(data->base + EXYNOS_TMU_REG_CONTROL); - con |= (1 << EXYNOS_TMU_THERM_TRIP_EN_SHIFT); - writel(con, data->base + EXYNOS_TMU_REG_CONTROL); - } +static void exynos4412_tmu_set_high_temp(struct exynos_tmu_data *data, u8 temp) +{ + exynos_tmu_update_temp(data, EXYNOS_THD_TEMP_RISE, 8, temp); + exynos_tmu_update_bit(data, EXYNOS_TMU_REG_INTEN, + EXYNOS_TMU_INTEN_RISE0_SHIFT + 4, true); } -static void exynos4412_tmu_set_trip_hyst(struct exynos_tmu_data *data, - int trip, u8 temp, u8 hyst) +static void exynos4412_tmu_disable_low(struct exynos_tmu_data *data) { - u32 th; + exynos_tmu_update_bit(data, EXYNOS_TMU_REG_INTEN, + EXYNOS_TMU_INTEN_FALL0_SHIFT, false); +} - th = readl(data->base + EXYNOS_THD_TEMP_FALL); - th &= ~(0xff << 8 * trip); - if (hyst) - th |= temp_to_code(data, temp - hyst) << 8 * trip; - writel(th, data->base + EXYNOS_THD_TEMP_FALL); +static void exynos4412_tmu_set_crit_temp(struct exynos_tmu_data *data, u8 temp) +{ + exynos_tmu_update_temp(data, EXYNOS_THD_TEMP_RISE, 24, temp); + exynos_tmu_update_bit(data, EXYNOS_TMU_REG_CONTROL, + EXYNOS_TMU_THERM_TRIP_EN_SHIFT, true); } static void exynos4412_tmu_initialize(struct platform_device *pdev) @@ -436,44 +468,39 @@ static void exynos4412_tmu_initialize(struct platform_device *pdev) sanitize_temp_error(data, trim_info); } -static void exynos5433_tmu_set_trip_temp(struct exynos_tmu_data *data, - int trip, u8 temp) +static void exynos5433_tmu_set_low_temp(struct exynos_tmu_data *data, u8 temp) { - unsigned int reg_off, j; - u32 th; - - if (trip > 3) { - reg_off = EXYNOS5433_THD_TEMP_RISE7_4; - j = trip - 4; - } else { - reg_off = EXYNOS5433_THD_TEMP_RISE3_0; - j = trip; - } + exynos_tmu_update_temp(data, EXYNOS5433_THD_TEMP_FALL3_0, 0, temp); + exynos_tmu_update_bit(data, EXYNOS5433_TMU_REG_INTEN, + EXYNOS_TMU_INTEN_FALL0_SHIFT, true); +} - th = readl(data->base + reg_off); - th &= ~(0xff << j * 8); - th |= (temp_to_code(data, temp) << j * 8); - writel(th, data->base + reg_off); +static void exynos5433_tmu_set_high_temp(struct exynos_tmu_data *data, u8 temp) +{ + exynos_tmu_update_temp(data, EXYNOS5433_THD_TEMP_RISE3_0, 8, temp); + exynos_tmu_update_bit(data, EXYNOS5433_TMU_REG_INTEN, + EXYNOS7_TMU_INTEN_RISE0_SHIFT + 1, true); } -static void exynos5433_tmu_set_trip_hyst(struct exynos_tmu_data *data, - int trip, u8 temp, u8 hyst) +static void exynos5433_tmu_disable_low(struct exynos_tmu_data *data) { - unsigned int reg_off, j; - u32 th; + exynos_tmu_update_bit(data, EXYNOS5433_TMU_REG_INTEN, + EXYNOS_TMU_INTEN_FALL0_SHIFT, false); +} - if (trip > 3) { - reg_off = EXYNOS5433_THD_TEMP_FALL7_4; - j = trip - 4; - } else { - reg_off = EXYNOS5433_THD_TEMP_FALL3_0; - j = trip; - } +static void exynos5433_tmu_disable_high(struct exynos_tmu_data *data) +{ + exynos_tmu_update_bit(data, EXYNOS5433_TMU_REG_INTEN, + EXYNOS7_TMU_INTEN_RISE0_SHIFT + 1, false); +} - th = readl(data->base + reg_off); - th &= ~(0xff << j * 8); - th |= (temp_to_code(data, temp - hyst) << j * 8); - writel(th, data->base + reg_off); +static void exynos5433_tmu_set_crit_temp(struct exynos_tmu_data *data, u8 temp) +{ + exynos_tmu_update_temp(data, EXYNOS5433_THD_TEMP_RISE7_4, 24, temp); + exynos_tmu_update_bit(data, EXYNOS_TMU_REG_CONTROL, + EXYNOS_TMU_THERM_TRIP_EN_SHIFT, true); + exynos_tmu_update_bit(data, EXYNOS5433_TMU_REG_INTEN, + EXYNOS7_TMU_INTEN_RISE0_SHIFT + 7, true); } static void exynos5433_tmu_initialize(struct platform_device *pdev) @@ -509,34 +536,41 @@ static void exynos5433_tmu_initialize(struct platform_device *pdev) cal_type ? 2 : 1); } -static void exynos7_tmu_set_trip_temp(struct exynos_tmu_data *data, - int trip, u8 temp) +static void exynos7_tmu_set_low_temp(struct exynos_tmu_data *data, u8 temp) { - unsigned int reg_off, bit_off; - u32 th; - - reg_off = ((7 - trip) / 2) * 4; - bit_off = ((8 - trip) % 2); + exynos_tmu_update_temp(data, EXYNOS7_THD_TEMP_FALL7_6 + 12, 0, temp); + exynos_tmu_update_bit(data, EXYNOS7_TMU_REG_INTEN, + EXYNOS_TMU_INTEN_FALL0_SHIFT + 0, true); +} - th = readl(data->base + EXYNOS7_THD_TEMP_RISE7_6 + reg_off); - th &= ~(EXYNOS7_TMU_TEMP_MASK << (16 * bit_off)); - th |= temp_to_code(data, temp) << (16 * bit_off); - writel(th, data->base + EXYNOS7_THD_TEMP_RISE7_6 + reg_off); +static void exynos7_tmu_set_high_temp(struct exynos_tmu_data *data, u8 temp) +{ + exynos_tmu_update_temp(data, EXYNOS7_THD_TEMP_RISE7_6 + 12, 16, temp); + exynos_tmu_update_bit(data, EXYNOS7_TMU_REG_INTEN, + EXYNOS7_TMU_INTEN_RISE0_SHIFT + 1, true); } -static void exynos7_tmu_set_trip_hyst(struct exynos_tmu_data *data, - int trip, u8 temp, u8 hyst) +static void exynos7_tmu_disable_low(struct exynos_tmu_data *data) { - unsigned int reg_off, bit_off; - u32 th; + exynos_tmu_update_bit(data, EXYNOS7_TMU_REG_INTEN, + EXYNOS_TMU_INTEN_FALL0_SHIFT + 0, false); +} - reg_off = ((7 - trip) / 2) * 4; - bit_off = ((8 - trip) % 2); +static void exynos7_tmu_disable_high(struct exynos_tmu_data *data) +{ + exynos_tmu_update_bit(data, EXYNOS7_TMU_REG_INTEN, + EXYNOS7_TMU_INTEN_RISE0_SHIFT + 1, false); +} - th = readl(data->base + EXYNOS7_THD_TEMP_FALL7_6 + reg_off); - th &= ~(EXYNOS7_TMU_TEMP_MASK << (16 * bit_off)); - th |= temp_to_code(data, temp - hyst) << (16 * bit_off); - writel(th, data->base + EXYNOS7_THD_TEMP_FALL7_6 + reg_off); +static void exynos7_tmu_set_crit_temp(struct exynos_tmu_data *data, u8 temp) +{ + /* + * Like Exynos 4210, Exynos 7 does not seem to support critical temperature + * handling in hardware. Again, we still set a separate interrupt for it. + */ + exynos_tmu_update_temp(data, EXYNOS7_THD_TEMP_RISE7_6 + 0, 16, temp); + exynos_tmu_update_bit(data, EXYNOS7_TMU_REG_INTEN, + EXYNOS7_TMU_INTEN_RISE0_SHIFT + 7, true); } static void exynos7_tmu_initialize(struct platform_device *pdev) @@ -551,95 +585,51 @@ static void exynos7_tmu_initialize(struct platform_device *pdev) static void exynos4210_tmu_control(struct platform_device *pdev, bool on) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); - struct thermal_zone_device *tz = data->tzd; - struct thermal_trip trip; - unsigned int con, interrupt_en = 0, i; + unsigned int con; con = get_con_reg(data, readl(data->base + EXYNOS_TMU_REG_CONTROL)); - if (on) { - for (i = 0; i < data->ntrip; i++) { - if (thermal_zone_get_trip(tz, i, &trip)) - continue; - - interrupt_en |= - (1 << (EXYNOS_TMU_INTEN_RISE0_SHIFT + i * 4)); - } - - if (data->soc != SOC_ARCH_EXYNOS4210) - interrupt_en |= - interrupt_en << EXYNOS_TMU_INTEN_FALL0_SHIFT; - - con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT); - } else { - con &= ~(1 << EXYNOS_TMU_CORE_EN_SHIFT); - } + if (on) + con |= BIT(EXYNOS_TMU_CORE_EN_SHIFT); + else + con &= ~BIT(EXYNOS_TMU_CORE_EN_SHIFT); - writel(interrupt_en, data->base + EXYNOS_TMU_REG_INTEN); writel(con, data->base + EXYNOS_TMU_REG_CONTROL); } static void exynos5433_tmu_control(struct platform_device *pdev, bool on) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); - struct thermal_zone_device *tz = data->tzd; - struct thermal_trip trip; - unsigned int con, interrupt_en = 0, pd_det_en, i; + unsigned int con, pd_det_en; con = get_con_reg(data, readl(data->base + EXYNOS_TMU_REG_CONTROL)); - if (on) { - for (i = 0; i < data->ntrip; i++) { - if (thermal_zone_get_trip(tz, i, &trip)) - continue; - - interrupt_en |= - (1 << (EXYNOS7_TMU_INTEN_RISE0_SHIFT + i)); - } - - interrupt_en |= - interrupt_en << EXYNOS_TMU_INTEN_FALL0_SHIFT; - - con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT); - } else - con &= ~(1 << EXYNOS_TMU_CORE_EN_SHIFT); + if (on) + con |= BIT(EXYNOS_TMU_CORE_EN_SHIFT); + else + con &= ~BIT(EXYNOS_TMU_CORE_EN_SHIFT); pd_det_en = on ? EXYNOS5433_PD_DET_EN : 0; writel(pd_det_en, data->base + EXYNOS5433_TMU_PD_DET_EN); - writel(interrupt_en, data->base + EXYNOS5433_TMU_REG_INTEN); writel(con, data->base + EXYNOS_TMU_REG_CONTROL); } static void exynos7_tmu_control(struct platform_device *pdev, bool on) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); - struct thermal_zone_device *tz = data->tzd; - struct thermal_trip trip; - unsigned int con, interrupt_en = 0, i; + unsigned int con; con = get_con_reg(data, readl(data->base + EXYNOS_TMU_REG_CONTROL)); if (on) { - for (i = 0; i < data->ntrip; i++) { - if (thermal_zone_get_trip(tz, i, &trip)) - continue; - - interrupt_en |= - (1 << (EXYNOS7_TMU_INTEN_RISE0_SHIFT + i)); - } - - interrupt_en |= - interrupt_en << EXYNOS_TMU_INTEN_FALL0_SHIFT; - - con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT); - con |= (1 << EXYNOS7_PD_DET_EN_SHIFT); + con |= BIT(EXYNOS_TMU_CORE_EN_SHIFT); + con |= BIT(EXYNOS7_PD_DET_EN_SHIFT); } else { - con &= ~(1 << EXYNOS_TMU_CORE_EN_SHIFT); - con &= ~(1 << EXYNOS7_PD_DET_EN_SHIFT); + con &= ~BIT(EXYNOS_TMU_CORE_EN_SHIFT); + con &= ~BIT(EXYNOS7_PD_DET_EN_SHIFT); } - writel(interrupt_en, data->base + EXYNOS7_TMU_REG_INTEN); writel(con, data->base + EXYNOS_TMU_REG_CONTROL); } @@ -766,10 +756,9 @@ static int exynos7_tmu_read(struct exynos_tmu_data *data) EXYNOS7_TMU_TEMP_MASK; } -static void exynos_tmu_work(struct work_struct *work) +static irqreturn_t exynos_tmu_threaded_irq(int irq, void *id) { - struct exynos_tmu_data *data = container_of(work, - struct exynos_tmu_data, irq_work); + struct exynos_tmu_data *data = id; thermal_zone_device_update(data->tzd, THERMAL_EVENT_UNSPECIFIED); @@ -781,7 +770,8 @@ static void exynos_tmu_work(struct work_struct *work) clk_disable(data->clk); mutex_unlock(&data->lock); - enable_irq(data->irq); + + return IRQ_HANDLED; } static void exynos4210_tmu_clear_irqs(struct exynos_tmu_data *data) @@ -815,16 +805,6 @@ static void exynos4210_tmu_clear_irqs(struct exynos_tmu_data *data) writel(val_irq, data->base + tmu_intclear); } -static irqreturn_t exynos_tmu_irq(int irq, void *id) -{ - struct exynos_tmu_data *data = id; - - disable_irq_nosync(irq); - schedule_work(&data->irq_work); - - return IRQ_HANDLED; -} - static const struct of_device_id exynos_tmu_match[] = { { .compatible = "samsung,exynos3250-tmu", @@ -866,10 +846,6 @@ static int exynos_map_dt_data(struct platform_device *pdev) if (!data || !pdev->dev.of_node) return -ENODEV; - data->id = of_alias_get_id(pdev->dev.of_node, "tmuctrl"); - if (data->id < 0) - data->id = 0; - data->irq = irq_of_parse_and_map(pdev->dev.of_node, 0); if (data->irq <= 0) { dev_err(&pdev->dev, "failed to get IRQ\n"); @@ -891,13 +867,15 @@ static int exynos_map_dt_data(struct platform_device *pdev) switch (data->soc) { case SOC_ARCH_EXYNOS4210: - data->tmu_set_trip_temp = exynos4210_tmu_set_trip_temp; - data->tmu_set_trip_hyst = exynos4210_tmu_set_trip_hyst; + data->tmu_set_low_temp = exynos4210_tmu_set_low_temp; + data->tmu_set_high_temp = exynos4210_tmu_set_high_temp; + data->tmu_disable_low = exynos4210_tmu_disable_low; + data->tmu_disable_high = exynos4210_tmu_disable_high; + data->tmu_set_crit_temp = exynos4210_tmu_set_crit_temp; data->tmu_initialize = exynos4210_tmu_initialize; data->tmu_control = exynos4210_tmu_control; data->tmu_read = exynos4210_tmu_read; data->tmu_clear_irqs = exynos4210_tmu_clear_irqs; - data->ntrip = 4; data->gain = 15; data->reference_voltage = 7; data->efuse_value = 55; @@ -910,14 +888,16 @@ static int exynos_map_dt_data(struct platform_device *pdev) case SOC_ARCH_EXYNOS5260: case SOC_ARCH_EXYNOS5420: case SOC_ARCH_EXYNOS5420_TRIMINFO: - data->tmu_set_trip_temp = exynos4412_tmu_set_trip_temp; - data->tmu_set_trip_hyst = exynos4412_tmu_set_trip_hyst; + data->tmu_set_low_temp = exynos4412_tmu_set_low_temp; + data->tmu_set_high_temp = exynos4412_tmu_set_high_temp; + data->tmu_disable_low = exynos4412_tmu_disable_low; + data->tmu_disable_high = exynos4210_tmu_disable_high; + data->tmu_set_crit_temp = exynos4412_tmu_set_crit_temp; data->tmu_initialize = exynos4412_tmu_initialize; data->tmu_control = exynos4210_tmu_control; data->tmu_read = exynos4412_tmu_read; data->tmu_set_emulation = exynos4412_tmu_set_emulation; data->tmu_clear_irqs = exynos4210_tmu_clear_irqs; - data->ntrip = 4; data->gain = 8; data->reference_voltage = 16; data->efuse_value = 55; @@ -929,14 +909,16 @@ static int exynos_map_dt_data(struct platform_device *pdev) data->max_efuse_value = 100; break; case SOC_ARCH_EXYNOS5433: - data->tmu_set_trip_temp = exynos5433_tmu_set_trip_temp; - data->tmu_set_trip_hyst = exynos5433_tmu_set_trip_hyst; + data->tmu_set_low_temp = exynos5433_tmu_set_low_temp; + data->tmu_set_high_temp = exynos5433_tmu_set_high_temp; + data->tmu_disable_low = exynos5433_tmu_disable_low; + data->tmu_disable_high = exynos5433_tmu_disable_high; + data->tmu_set_crit_temp = exynos5433_tmu_set_crit_temp; data->tmu_initialize = exynos5433_tmu_initialize; data->tmu_control = exynos5433_tmu_control; data->tmu_read = exynos4412_tmu_read; data->tmu_set_emulation = exynos4412_tmu_set_emulation; data->tmu_clear_irqs = exynos4210_tmu_clear_irqs; - data->ntrip = 8; data->gain = 8; if (res.start == EXYNOS5433_G3D_BASE) data->reference_voltage = 23; @@ -947,14 +929,16 @@ static int exynos_map_dt_data(struct platform_device *pdev) data->max_efuse_value = 150; break; case SOC_ARCH_EXYNOS7: - data->tmu_set_trip_temp = exynos7_tmu_set_trip_temp; - data->tmu_set_trip_hyst = exynos7_tmu_set_trip_hyst; + data->tmu_set_low_temp = exynos7_tmu_set_low_temp; + data->tmu_set_high_temp = exynos7_tmu_set_high_temp; + data->tmu_disable_low = exynos7_tmu_disable_low; + data->tmu_disable_high = exynos7_tmu_disable_high; + data->tmu_set_crit_temp = exynos7_tmu_set_crit_temp; data->tmu_initialize = exynos7_tmu_initialize; data->tmu_control = exynos7_tmu_control; data->tmu_read = exynos7_tmu_read; data->tmu_set_emulation = exynos4412_tmu_set_emulation; data->tmu_clear_irqs = exynos4210_tmu_clear_irqs; - data->ntrip = 8; data->gain = 9; data->reference_voltage = 17; data->efuse_value = 75; @@ -990,9 +974,32 @@ static int exynos_map_dt_data(struct platform_device *pdev) return 0; } +static int exynos_set_trips(struct thermal_zone_device *tz, int low, int high) +{ + struct exynos_tmu_data *data = thermal_zone_device_priv(tz); + + mutex_lock(&data->lock); + clk_enable(data->clk); + + if (low > INT_MIN) + data->tmu_set_low_temp(data, low / MCELSIUS); + else + data->tmu_disable_low(data); + if (high < INT_MAX) + data->tmu_set_high_temp(data, high / MCELSIUS); + else + data->tmu_disable_high(data); + + clk_disable(data->clk); + mutex_unlock(&data->lock); + + return 0; +} + static const struct thermal_zone_device_ops exynos_sensor_ops = { .get_temp = exynos_get_temp, .set_emul_temp = exynos_tmu_set_emulation, + .set_trips = exynos_set_trips, }; static int exynos_tmu_probe(struct platform_device *pdev) @@ -1013,44 +1020,40 @@ static int exynos_tmu_probe(struct platform_device *pdev) * TODO: Add regulator as an SOC feature, so that regulator enable * is a compulsory call. */ - data->regulator = devm_regulator_get_optional(&pdev->dev, "vtmu"); - if (!IS_ERR(data->regulator)) { - ret = regulator_enable(data->regulator); - if (ret) { - dev_err(&pdev->dev, "failed to enable vtmu\n"); - return ret; - } - } else { - if (PTR_ERR(data->regulator) == -EPROBE_DEFER) - return -EPROBE_DEFER; - dev_info(&pdev->dev, "Regulator node (vtmu) not found\n"); + ret = devm_regulator_get_enable_optional(&pdev->dev, "vtmu"); + switch (ret) { + case 0: + case -ENODEV: + break; + case -EPROBE_DEFER: + return -EPROBE_DEFER; + default: + dev_err(&pdev->dev, "Failed to get enabled regulator: %d\n", + ret); + return ret; } ret = exynos_map_dt_data(pdev); if (ret) - goto err_sensor; - - INIT_WORK(&data->irq_work, exynos_tmu_work); + return ret; data->clk = devm_clk_get(&pdev->dev, "tmu_apbif"); if (IS_ERR(data->clk)) { dev_err(&pdev->dev, "Failed to get clock\n"); - ret = PTR_ERR(data->clk); - goto err_sensor; + return PTR_ERR(data->clk); } data->clk_sec = devm_clk_get(&pdev->dev, "tmu_triminfo_apbif"); if (IS_ERR(data->clk_sec)) { if (data->soc == SOC_ARCH_EXYNOS5420_TRIMINFO) { dev_err(&pdev->dev, "Failed to get triminfo clock\n"); - ret = PTR_ERR(data->clk_sec); - goto err_sensor; + return PTR_ERR(data->clk_sec); } } else { ret = clk_prepare(data->clk_sec); if (ret) { dev_err(&pdev->dev, "Failed to get clock\n"); - goto err_sensor; + return ret; } } @@ -1080,10 +1083,12 @@ static int exynos_tmu_probe(struct platform_device *pdev) break; } - /* - * data->tzd must be registered before calling exynos_tmu_initialize(), - * requesting irq and calling exynos_tmu_control(). - */ + ret = exynos_tmu_initialize(pdev); + if (ret) { + dev_err(&pdev->dev, "Failed to initialize TMU\n"); + goto err_sclk; + } + data->tzd = devm_thermal_of_zone_register(&pdev->dev, 0, data, &exynos_sensor_ops); if (IS_ERR(data->tzd)) { @@ -1094,14 +1099,17 @@ static int exynos_tmu_probe(struct platform_device *pdev) goto err_sclk; } - ret = exynos_tmu_initialize(pdev); + ret = exynos_thermal_zone_configure(pdev); if (ret) { - dev_err(&pdev->dev, "Failed to initialize TMU\n"); + dev_err(&pdev->dev, "Failed to configure the thermal zone\n"); goto err_sclk; } - ret = devm_request_irq(&pdev->dev, data->irq, exynos_tmu_irq, - IRQF_TRIGGER_RISING | IRQF_SHARED, dev_name(&pdev->dev), data); + ret = devm_request_threaded_irq(&pdev->dev, data->irq, NULL, + exynos_tmu_threaded_irq, + IRQF_TRIGGER_RISING + | IRQF_SHARED | IRQF_ONESHOT, + dev_name(&pdev->dev), data); if (ret) { dev_err(&pdev->dev, "Failed to request irq: %d\n", data->irq); goto err_sclk; @@ -1117,10 +1125,6 @@ err_clk: err_clk_sec: if (!IS_ERR(data->clk_sec)) clk_unprepare(data->clk_sec); -err_sensor: - if (!IS_ERR(data->regulator)) - regulator_disable(data->regulator); - return ret; } @@ -1134,9 +1138,6 @@ static void exynos_tmu_remove(struct platform_device *pdev) clk_unprepare(data->clk); if (!IS_ERR(data->clk_sec)) clk_unprepare(data->clk_sec); - - if (!IS_ERR(data->regulator)) - regulator_disable(data->regulator); } #ifdef CONFIG_PM_SLEEP diff --git a/drivers/thermal/sun8i_thermal.c b/drivers/thermal/sun8i_thermal.c index f989b55a8aa8..6a8e386dbc8d 100644 --- a/drivers/thermal/sun8i_thermal.c +++ b/drivers/thermal/sun8i_thermal.c @@ -606,6 +606,18 @@ static const struct ths_thermal_chip sun50i_h6_ths = { .calc_temp = sun8i_ths_calc_temp, }; +static const struct ths_thermal_chip sun20i_d1_ths = { + .sensor_num = 1, + .has_bus_clk_reset = true, + .offset = 188552, + .scale = 673, + .temp_data_base = SUN50I_H6_THS_TEMP_DATA, + .calibrate = sun50i_h6_ths_calibrate, + .init = sun50i_h6_thermal_init, + .irq_ack = sun50i_h6_irq_ack, + .calc_temp = sun8i_ths_calc_temp, +}; + static const struct of_device_id of_ths_match[] = { { .compatible = "allwinner,sun8i-a83t-ths", .data = &sun8i_a83t_ths }, { .compatible = "allwinner,sun8i-h3-ths", .data = &sun8i_h3_ths }, @@ -614,6 +626,7 @@ static const struct of_device_id of_ths_match[] = { { .compatible = "allwinner,sun50i-a100-ths", .data = &sun50i_a100_ths }, { .compatible = "allwinner,sun50i-h5-ths", .data = &sun50i_h5_ths }, { .compatible = "allwinner,sun50i-h6-ths", .data = &sun50i_h6_ths }, + { .compatible = "allwinner,sun20i-d1-ths", .data = &sun20i_d1_ths }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(of, of_ths_match); diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 9c17d35ccbbd..fa88d8707241 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -37,8 +37,6 @@ static LIST_HEAD(thermal_governor_list); static DEFINE_MUTEX(thermal_list_lock); static DEFINE_MUTEX(thermal_governor_lock); -static atomic_t in_suspend; - static struct thermal_governor *def_governor; /* @@ -203,9 +201,6 @@ int thermal_zone_device_set_policy(struct thermal_zone_device *tz, mutex_lock(&thermal_governor_lock); mutex_lock(&tz->lock); - if (!device_is_registered(&tz->device)) - goto exit; - gov = __find_governor(strim(policy)); if (!gov) goto exit; @@ -314,21 +309,43 @@ static void handle_non_critical_trips(struct thermal_zone_device *tz, def_governor->throttle(tz, trip); } -void thermal_zone_device_critical(struct thermal_zone_device *tz) +void thermal_governor_update_tz(struct thermal_zone_device *tz, + enum thermal_notify_event reason) +{ + if (!tz->governor || !tz->governor->update_tz) + return; + + tz->governor->update_tz(tz, reason); +} + +static void thermal_zone_device_halt(struct thermal_zone_device *tz, bool shutdown) { /* * poweroff_delay_ms must be a carefully profiled positive value. * Its a must for forced_emergency_poweroff_work to be scheduled. */ int poweroff_delay_ms = CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS; + const char *msg = "Temperature too high"; - dev_emerg(&tz->device, "%s: critical temperature reached, " - "shutting down\n", tz->type); + dev_emerg(&tz->device, "%s: critical temperature reached\n", tz->type); + + if (shutdown) + hw_protection_shutdown(msg, poweroff_delay_ms); + else + hw_protection_reboot(msg, poweroff_delay_ms); +} - hw_protection_shutdown("Temperature too high", poweroff_delay_ms); +void thermal_zone_device_critical(struct thermal_zone_device *tz) +{ + thermal_zone_device_halt(tz, true); } EXPORT_SYMBOL(thermal_zone_device_critical); +void thermal_zone_device_critical_reboot(struct thermal_zone_device *tz) +{ + thermal_zone_device_halt(tz, false); +} + static void handle_critical_trips(struct thermal_zone_device *tz, const struct thermal_trip *trip) { @@ -345,22 +362,51 @@ static void handle_critical_trips(struct thermal_zone_device *tz, } static void handle_thermal_trip(struct thermal_zone_device *tz, - const struct thermal_trip *trip) + struct thermal_trip *trip) { if (trip->temperature == THERMAL_TEMP_INVALID) return; - if (tz->last_temperature != THERMAL_TEMP_INVALID) { - if (tz->last_temperature < trip->temperature && - tz->temperature >= trip->temperature) + if (tz->last_temperature == THERMAL_TEMP_INVALID) { + /* Initialization. */ + trip->threshold = trip->temperature; + if (tz->temperature >= trip->threshold) + trip->threshold -= trip->hysteresis; + } else if (tz->last_temperature < trip->threshold) { + /* + * The trip threshold is equal to the trip temperature, unless + * the latter has changed in the meantime. In either case, + * the trip is crossed if the current zone temperature is at + * least equal to its temperature, but otherwise ensure that + * the threshold and the trip temperature will be equal. + */ + if (tz->temperature >= trip->temperature) { thermal_notify_tz_trip_up(tz->id, thermal_zone_trip_id(tz, trip), tz->temperature); - if (tz->last_temperature >= trip->temperature && - tz->temperature < trip->temperature - trip->hysteresis) + trip->threshold = trip->temperature - trip->hysteresis; + } else { + trip->threshold = trip->temperature; + } + } else { + /* + * The previous zone temperature was above or equal to the trip + * threshold, which would be equal to the "low temperature" of + * the trip (its temperature minus its hysteresis), unless the + * trip temperature or hysteresis had changed. In either case, + * the trip is crossed if the current zone temperature is below + * the low temperature of the trip, but otherwise ensure that + * the trip threshold will be equal to the low temperature of + * the trip. + */ + if (tz->temperature < trip->temperature - trip->hysteresis) { thermal_notify_tz_trip_down(tz->id, thermal_zone_trip_id(tz, trip), tz->temperature); + trip->threshold = trip->temperature; + } else { + trip->threshold = trip->temperature - trip->hysteresis; + } } if (trip->type == THERMAL_TRIP_CRITICAL || trip->type == THERMAL_TRIP_HOT) @@ -390,9 +436,20 @@ static void update_temperature(struct thermal_zone_device *tz) thermal_genl_sampling_temp(tz->id, temp); } +static void thermal_zone_device_check(struct work_struct *work) +{ + struct thermal_zone_device *tz = container_of(work, struct + thermal_zone_device, + poll_queue.work); + thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED); +} + static void thermal_zone_device_init(struct thermal_zone_device *tz) { struct thermal_instance *pos; + + INIT_DELAYED_WORK(&tz->poll_queue, thermal_zone_device_check); + tz->temperature = THERMAL_TEMP_INVALID; tz->prev_low_trip = -INT_MAX; tz->prev_high_trip = INT_MAX; @@ -403,14 +460,9 @@ static void thermal_zone_device_init(struct thermal_zone_device *tz) void __thermal_zone_device_update(struct thermal_zone_device *tz, enum thermal_notify_event event) { - const struct thermal_trip *trip; - - if (atomic_read(&in_suspend)) - return; + struct thermal_trip *trip; - if (WARN_ONCE(!tz->ops->get_temp, - "'%s' must not be called without 'get_temp' ops set\n", - __func__)) + if (tz->suspended) return; if (!thermal_zone_device_is_enabled(tz)) @@ -442,12 +494,6 @@ static int thermal_zone_device_set_mode(struct thermal_zone_device *tz, return ret; } - if (!device_is_registered(&tz->device)) { - mutex_unlock(&tz->lock); - - return -ENODEV; - } - if (tz->ops->change_mode) ret = tz->ops->change_mode(tz, mode); @@ -485,24 +531,21 @@ int thermal_zone_device_is_enabled(struct thermal_zone_device *tz) return tz->mode == THERMAL_DEVICE_ENABLED; } +static bool thermal_zone_is_present(struct thermal_zone_device *tz) +{ + return !list_empty(&tz->node); +} + void thermal_zone_device_update(struct thermal_zone_device *tz, enum thermal_notify_event event) { mutex_lock(&tz->lock); - if (device_is_registered(&tz->device)) + if (thermal_zone_is_present(tz)) __thermal_zone_device_update(tz, event); mutex_unlock(&tz->lock); } EXPORT_SYMBOL_GPL(thermal_zone_device_update); -static void thermal_zone_device_check(struct work_struct *work) -{ - struct thermal_zone_device *tz = container_of(work, struct - thermal_zone_device, - poll_queue.work); - thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED); -} - int for_each_thermal_governor(int (*cb)(struct thermal_governor *, void *), void *data) { @@ -694,6 +737,8 @@ int thermal_bind_cdev_to_trip(struct thermal_zone_device *tz, list_add_tail(&dev->tz_node, &tz->thermal_instances); list_add_tail(&dev->cdev_node, &cdev->thermal_instances); atomic_set(&tz->need_update, 1); + + thermal_governor_update_tz(tz, THERMAL_TZ_BIND_CDEV); } mutex_unlock(&cdev->lock); mutex_unlock(&tz->lock); @@ -752,6 +797,9 @@ int thermal_unbind_cdev_from_trip(struct thermal_zone_device *tz, if (pos->tz == tz && pos->trip == trip && pos->cdev == cdev) { list_del(&pos->tz_node); list_del(&pos->cdev_node); + + thermal_governor_update_tz(tz, THERMAL_TZ_UNBIND_CDEV); + mutex_unlock(&cdev->lock); mutex_unlock(&tz->lock); goto unbind; @@ -793,7 +841,7 @@ static void thermal_release(struct device *dev) tz = to_thermal_zone(dev); thermal_zone_destroy_device_groups(tz); mutex_destroy(&tz->lock); - kfree(tz); + complete(&tz->removal); } else if (!strncmp(dev_name(dev), "cooling_device", sizeof("cooling_device") - 1)) { cdev = to_cooling_device(dev); @@ -1260,7 +1308,7 @@ thermal_zone_device_register_with_trips(const char *type, struct thermal_trip *t return ERR_PTR(-EINVAL); } - if (!ops) { + if (!ops || !ops->get_temp) { pr_err("Thermal zone device ops not defined\n"); return ERR_PTR(-EINVAL); } @@ -1284,8 +1332,10 @@ thermal_zone_device_register_with_trips(const char *type, struct thermal_trip *t } INIT_LIST_HEAD(&tz->thermal_instances); + INIT_LIST_HEAD(&tz->node); ida_init(&tz->ida); mutex_init(&tz->lock); + init_completion(&tz->removal); id = ida_alloc(&thermal_tz_ida, GFP_KERNEL); if (id < 0) { result = id; @@ -1348,14 +1398,14 @@ thermal_zone_device_register_with_trips(const char *type, struct thermal_trip *t } mutex_lock(&thermal_list_lock); + mutex_lock(&tz->lock); list_add_tail(&tz->node, &thermal_tz_list); + mutex_unlock(&tz->lock); mutex_unlock(&thermal_list_lock); /* Bind cooling devices for this zone */ bind_tz(tz); - INIT_DELAYED_WORK(&tz->poll_queue, thermal_zone_device_check); - thermal_zone_device_init(tz); /* Update the new thermal zone and mark it as already updated. */ if (atomic_cmpxchg(&tz->need_update, 1, 0)) @@ -1369,7 +1419,6 @@ unregister: device_del(&tz->device); release_device: put_device(&tz->device); - tz = NULL; remove_id: ida_free(&thermal_tz_ida, id); free_tzp: @@ -1439,7 +1488,10 @@ void thermal_zone_device_unregister(struct thermal_zone_device *tz) mutex_unlock(&thermal_list_lock); return; } + + mutex_lock(&tz->lock); list_del(&tz->node); + mutex_unlock(&tz->lock); /* Unbind all cdevs associated with 'this' thermal zone */ list_for_each_entry(cdev, &thermal_cdev_list, node) @@ -1456,15 +1508,16 @@ void thermal_zone_device_unregister(struct thermal_zone_device *tz) ida_free(&thermal_tz_ida, tz->id); ida_destroy(&tz->ida); - mutex_lock(&tz->lock); device_del(&tz->device); - mutex_unlock(&tz->lock); kfree(tz->tzp); put_device(&tz->device); thermal_notify_tz_delete(tz_id); + + wait_for_completion(&tz->removal); + kfree(tz); } EXPORT_SYMBOL_GPL(thermal_zone_device_unregister); @@ -1506,6 +1559,22 @@ exit: } EXPORT_SYMBOL_GPL(thermal_zone_get_zone_by_name); +static void thermal_zone_device_resume(struct work_struct *work) +{ + struct thermal_zone_device *tz; + + tz = container_of(work, struct thermal_zone_device, poll_queue.work); + + mutex_lock(&tz->lock); + + tz->suspended = false; + + thermal_zone_device_init(tz); + __thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED); + + mutex_unlock(&tz->lock); +} + static int thermal_pm_notify(struct notifier_block *nb, unsigned long mode, void *_unused) { @@ -1515,17 +1584,43 @@ static int thermal_pm_notify(struct notifier_block *nb, case PM_HIBERNATION_PREPARE: case PM_RESTORE_PREPARE: case PM_SUSPEND_PREPARE: - atomic_set(&in_suspend, 1); + mutex_lock(&thermal_list_lock); + + list_for_each_entry(tz, &thermal_tz_list, node) { + mutex_lock(&tz->lock); + + tz->suspended = true; + + mutex_unlock(&tz->lock); + } + + mutex_unlock(&thermal_list_lock); break; case PM_POST_HIBERNATION: case PM_POST_RESTORE: case PM_POST_SUSPEND: - atomic_set(&in_suspend, 0); + mutex_lock(&thermal_list_lock); + list_for_each_entry(tz, &thermal_tz_list, node) { - thermal_zone_device_init(tz); - thermal_zone_device_update(tz, - THERMAL_EVENT_UNSPECIFIED); + mutex_lock(&tz->lock); + + cancel_delayed_work(&tz->poll_queue); + + /* + * Replace the work function with the resume one, which + * will restore the original work function and schedule + * the polling work if needed. + */ + INIT_DELAYED_WORK(&tz->poll_queue, + thermal_zone_device_resume); + /* Queue up the work without a delay. */ + mod_delayed_work(system_freezable_power_efficient_wq, + &tz->poll_queue, 0); + + mutex_unlock(&tz->lock); } + + mutex_unlock(&thermal_list_lock); break; default: break; diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h index 0a3b3ec5120b..4e023d54fd27 100644 --- a/drivers/thermal/thermal_core.h +++ b/drivers/thermal/thermal_core.h @@ -114,16 +114,19 @@ int thermal_zone_device_set_policy(struct thermal_zone_device *, char *); int thermal_build_list_of_policies(char *buf); void __thermal_zone_device_update(struct thermal_zone_device *tz, enum thermal_notify_event event); +void thermal_zone_device_critical_reboot(struct thermal_zone_device *tz); +void thermal_governor_update_tz(struct thermal_zone_device *tz, + enum thermal_notify_event reason); /* Helpers */ #define for_each_trip(__tz, __trip) \ for (__trip = __tz->trips; __trip - __tz->trips < __tz->num_trips; __trip++) void __thermal_zone_set_trips(struct thermal_zone_device *tz); -int __thermal_zone_get_trip(struct thermal_zone_device *tz, int trip_id, - struct thermal_trip *trip); -int thermal_zone_trip_id(struct thermal_zone_device *tz, +int thermal_zone_trip_id(const struct thermal_zone_device *tz, const struct thermal_trip *trip); +void thermal_zone_trip_updated(struct thermal_zone_device *tz, + const struct thermal_trip *trip); int __thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp); /* sysfs I/F */ diff --git a/drivers/thermal/thermal_helpers.c b/drivers/thermal/thermal_helpers.c index 69e8ea4aa908..c3982e0f0075 100644 --- a/drivers/thermal/thermal_helpers.c +++ b/drivers/thermal/thermal_helpers.c @@ -82,20 +82,18 @@ EXPORT_SYMBOL(get_thermal_instance); */ int __thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp) { - int ret = -EINVAL; - int count; + const struct thermal_trip *trip; int crit_temp = INT_MAX; - struct thermal_trip trip; + int ret = -EINVAL; lockdep_assert_held(&tz->lock); ret = tz->ops->get_temp(tz, temp); if (IS_ENABLED(CONFIG_THERMAL_EMULATION) && tz->emul_temperature) { - for (count = 0; count < tz->num_trips; count++) { - ret = __thermal_zone_get_trip(tz, count, &trip); - if (!ret && trip.type == THERMAL_TRIP_CRITICAL) { - crit_temp = trip.temperature; + for_each_trip(tz, trip) { + if (trip->type == THERMAL_TRIP_CRITICAL) { + crit_temp = trip->temperature; break; } } @@ -139,10 +137,7 @@ int thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp) goto unlock; } - if (device_is_registered(&tz->device)) - ret = __thermal_zone_get_temp(tz, temp); - else - ret = -ENODEV; + ret = __thermal_zone_get_temp(tz, temp); unlock: mutex_unlock(&tz->lock); diff --git a/drivers/thermal/thermal_hwmon.c b/drivers/thermal/thermal_hwmon.c index c3ae44659b81..252116f1e535 100644 --- a/drivers/thermal/thermal_hwmon.c +++ b/drivers/thermal/thermal_hwmon.c @@ -80,10 +80,7 @@ temp_crit_show(struct device *dev, struct device_attribute *attr, char *buf) mutex_lock(&tz->lock); - if (device_is_registered(&tz->device)) - ret = tz->ops->get_crit_temp(tz, &temperature); - else - ret = -ENODEV; + ret = tz->ops->get_crit_temp(tz, &temperature); mutex_unlock(&tz->lock); diff --git a/drivers/thermal/thermal_netlink.c b/drivers/thermal/thermal_netlink.c index 08bc46c3ec7b..332052e24a86 100644 --- a/drivers/thermal/thermal_netlink.c +++ b/drivers/thermal/thermal_netlink.c @@ -13,9 +13,14 @@ #include "thermal_core.h" +enum thermal_genl_multicast_groups { + THERMAL_GENL_SAMPLING_GROUP = 0, + THERMAL_GENL_EVENT_GROUP = 1, +}; + static const struct genl_multicast_group thermal_genl_mcgrps[] = { - { .name = THERMAL_GENL_SAMPLING_GROUP_NAME, }, - { .name = THERMAL_GENL_EVENT_GROUP_NAME, }, + [THERMAL_GENL_SAMPLING_GROUP] = { .name = THERMAL_GENL_SAMPLING_GROUP_NAME, }, + [THERMAL_GENL_EVENT_GROUP] = { .name = THERMAL_GENL_EVENT_GROUP_NAME, }, }; static const struct nla_policy thermal_genl_policy[THERMAL_GENL_ATTR_MAX + 1] = { @@ -71,6 +76,11 @@ typedef int (*cb_t)(struct param *); static struct genl_family thermal_gnl_family; +static int thermal_group_has_listeners(enum thermal_genl_multicast_groups group) +{ + return genl_has_listeners(&thermal_gnl_family, &init_net, group); +} + /************************** Sampling encoding *******************************/ int thermal_genl_sampling_temp(int id, int temp) @@ -78,6 +88,9 @@ int thermal_genl_sampling_temp(int id, int temp) struct sk_buff *skb; void *hdr; + if (!thermal_group_has_listeners(THERMAL_GENL_SAMPLING_GROUP)) + return 0; + skb = genlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); if (!skb) return -ENOMEM; @@ -95,7 +108,7 @@ int thermal_genl_sampling_temp(int id, int temp) genlmsg_end(skb, hdr); - genlmsg_multicast(&thermal_gnl_family, skb, 0, 0, GFP_KERNEL); + genlmsg_multicast(&thermal_gnl_family, skb, 0, THERMAL_GENL_SAMPLING_GROUP, GFP_KERNEL); return 0; out_cancel: @@ -275,6 +288,9 @@ static int thermal_genl_send_event(enum thermal_genl_event event, int ret = -EMSGSIZE; void *hdr; + if (!thermal_group_has_listeners(THERMAL_GENL_EVENT_GROUP)) + return 0; + msg = genlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); if (!msg) return -ENOMEM; @@ -290,7 +306,7 @@ static int thermal_genl_send_event(enum thermal_genl_event event, genlmsg_end(msg, hdr); - genlmsg_multicast(&thermal_gnl_family, msg, 0, 1, GFP_KERNEL); + genlmsg_multicast(&thermal_gnl_family, msg, 0, THERMAL_GENL_EVENT_GROUP, GFP_KERNEL); return 0; @@ -450,10 +466,10 @@ out_cancel_nest: static int thermal_genl_cmd_tz_get_trip(struct param *p) { struct sk_buff *msg = p->msg; + const struct thermal_trip *trip; struct thermal_zone_device *tz; struct nlattr *start_trip; - struct thermal_trip trip; - int ret, i, id; + int id; if (!p->attrs[THERMAL_GENL_ATTR_TZ_ID]) return -EINVAL; @@ -470,16 +486,12 @@ static int thermal_genl_cmd_tz_get_trip(struct param *p) mutex_lock(&tz->lock); - for (i = 0; i < tz->num_trips; i++) { - - ret = __thermal_zone_get_trip(tz, i, &trip); - if (ret) - goto out_cancel_nest; - - if (nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_ID, i) || - nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_TYPE, trip.type) || - nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_TEMP, trip.temperature) || - nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_HYST, trip.hysteresis)) + for_each_trip(tz, trip) { + if (nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_ID, + thermal_zone_trip_id(tz, trip)) || + nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_TYPE, trip->type) || + nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_TEMP, trip->temperature) || + nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_HYST, trip->hysteresis)) goto out_cancel_nest; } diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c index 1e0655b63259..4d6c22e0ed85 100644 --- a/drivers/thermal/thermal_of.c +++ b/drivers/thermal/thermal_of.c @@ -475,6 +475,7 @@ static struct thermal_zone_device *thermal_of_zone_register(struct device_node * struct thermal_zone_params tzp = {}; struct thermal_zone_device_ops *of_ops; struct device_node *np; + const char *action; int delay, pdelay; int ntrips, mask; int ret; @@ -511,6 +512,11 @@ static struct thermal_zone_device *thermal_of_zone_register(struct device_node * mask = GENMASK_ULL((ntrips) - 1, 0); + ret = of_property_read_string(np, "critical-action", &action); + if (!ret) + if (!of_ops->critical && !strcasecmp(action, "reboot")) + of_ops->critical = thermal_zone_device_critical_reboot; + tz = thermal_zone_device_register_with_trips(np->name, trips, ntrips, mask, data, of_ops, &tzp, pdelay, delay); diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c index eef40d4f3063..f4033865b093 100644 --- a/drivers/thermal/thermal_sysfs.c +++ b/drivers/thermal/thermal_sysfs.c @@ -83,25 +83,12 @@ trip_point_type_show(struct device *dev, struct device_attribute *attr, char *buf) { struct thermal_zone_device *tz = to_thermal_zone(dev); - struct thermal_trip trip; - int trip_id, result; + int trip_id; if (sscanf(attr->attr.name, "trip_point_%d_type", &trip_id) != 1) return -EINVAL; - mutex_lock(&tz->lock); - - if (device_is_registered(dev)) - result = __thermal_zone_get_trip(tz, trip_id, &trip); - else - result = -ENODEV; - - mutex_unlock(&tz->lock); - - if (result) - return result; - - switch (trip.type) { + switch (tz->trips[trip_id].type) { case THERMAL_TRIP_CRITICAL: return sprintf(buf, "critical\n"); case THERMAL_TRIP_HOT: @@ -120,28 +107,33 @@ trip_point_temp_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct thermal_zone_device *tz = to_thermal_zone(dev); - struct thermal_trip trip; + struct thermal_trip *trip; int trip_id, ret; + int temp; + + ret = kstrtoint(buf, 10, &temp); + if (ret) + return -EINVAL; if (sscanf(attr->attr.name, "trip_point_%d_temp", &trip_id) != 1) return -EINVAL; mutex_lock(&tz->lock); - if (!device_is_registered(dev)) { - ret = -ENODEV; - goto unlock; - } + trip = &tz->trips[trip_id]; - ret = __thermal_zone_get_trip(tz, trip_id, &trip); - if (ret) - goto unlock; + if (temp != trip->temperature) { + if (tz->ops->set_trip_temp) { + ret = tz->ops->set_trip_temp(tz, trip_id, temp); + if (ret) + goto unlock; + } - ret = kstrtoint(buf, 10, &trip.temperature); - if (ret) - goto unlock; + thermal_zone_set_trip_temp(tz, trip, temp); + + __thermal_zone_device_update(tz, THERMAL_TRIP_CHANGED); + } - ret = thermal_zone_set_trip(tz, trip_id, &trip); unlock: mutex_unlock(&tz->lock); @@ -153,25 +145,12 @@ trip_point_temp_show(struct device *dev, struct device_attribute *attr, char *buf) { struct thermal_zone_device *tz = to_thermal_zone(dev); - struct thermal_trip trip; - int trip_id, ret; + int trip_id; if (sscanf(attr->attr.name, "trip_point_%d_temp", &trip_id) != 1) return -EINVAL; - mutex_lock(&tz->lock); - - if (device_is_registered(dev)) - ret = __thermal_zone_get_trip(tz, trip_id, &trip); - else - ret = -ENODEV; - - mutex_unlock(&tz->lock); - - if (ret) - return ret; - - return sprintf(buf, "%d\n", trip.temperature); + return sprintf(buf, "%d\n", tz->trips[trip_id].temperature); } static ssize_t @@ -179,28 +158,33 @@ trip_point_hyst_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct thermal_zone_device *tz = to_thermal_zone(dev); - struct thermal_trip trip; + struct thermal_trip *trip; int trip_id, ret; + int hyst; + + ret = kstrtoint(buf, 10, &hyst); + if (ret || hyst < 0) + return -EINVAL; if (sscanf(attr->attr.name, "trip_point_%d_hyst", &trip_id) != 1) return -EINVAL; mutex_lock(&tz->lock); - if (!device_is_registered(dev)) { - ret = -ENODEV; - goto unlock; - } + trip = &tz->trips[trip_id]; - ret = __thermal_zone_get_trip(tz, trip_id, &trip); - if (ret) - goto unlock; + if (hyst != trip->hysteresis) { + if (tz->ops->set_trip_hyst) { + ret = tz->ops->set_trip_hyst(tz, trip_id, hyst); + if (ret) + goto unlock; + } - ret = kstrtoint(buf, 10, &trip.hysteresis); - if (ret) - goto unlock; + trip->hysteresis = hyst; + + thermal_zone_trip_updated(tz, trip); + } - ret = thermal_zone_set_trip(tz, trip_id, &trip); unlock: mutex_unlock(&tz->lock); @@ -212,22 +196,12 @@ trip_point_hyst_show(struct device *dev, struct device_attribute *attr, char *buf) { struct thermal_zone_device *tz = to_thermal_zone(dev); - struct thermal_trip trip; - int trip_id, ret; + int trip_id; if (sscanf(attr->attr.name, "trip_point_%d_hyst", &trip_id) != 1) return -EINVAL; - mutex_lock(&tz->lock); - - if (device_is_registered(dev)) - ret = __thermal_zone_get_trip(tz, trip_id, &trip); - else - ret = -ENODEV; - - mutex_unlock(&tz->lock); - - return ret ? ret : sprintf(buf, "%d\n", trip.hysteresis); + return sprintf(buf, "%d\n", tz->trips[trip_id].hysteresis); } static ssize_t @@ -276,11 +250,6 @@ emul_temp_store(struct device *dev, struct device_attribute *attr, mutex_lock(&tz->lock); - if (!device_is_registered(dev)) { - ret = -ENODEV; - goto unlock; - } - if (!tz->ops->set_emul_temp) tz->emul_temperature = temperature; else @@ -289,7 +258,6 @@ emul_temp_store(struct device *dev, struct device_attribute *attr, if (!ret) __thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED); -unlock: mutex_unlock(&tz->lock); return ret ? ret : count; @@ -968,7 +936,16 @@ ssize_t weight_store(struct device *dev, struct device_attribute *attr, return ret; instance = container_of(attr, struct thermal_instance, weight_attr); + + /* Don't race with governors using the 'weight' value */ + mutex_lock(&instance->tz->lock); + instance->weight = weight; + thermal_governor_update_tz(instance->tz, + THERMAL_INSTANCE_WEIGHT_CHANGED); + + mutex_unlock(&instance->tz->lock); + return count; } diff --git a/drivers/thermal/thermal_trace_ipa.h b/drivers/thermal/thermal_trace_ipa.h index 84568db5421b..b16b5dd863d9 100644 --- a/drivers/thermal/thermal_trace_ipa.h +++ b/drivers/thermal/thermal_trace_ipa.h @@ -8,19 +8,14 @@ #include <linux/tracepoint.h> TRACE_EVENT(thermal_power_allocator, - TP_PROTO(struct thermal_zone_device *tz, u32 *req_power, - u32 total_req_power, u32 *granted_power, - u32 total_granted_power, size_t num_actors, - u32 power_range, u32 max_allocatable_power, - int current_temp, s32 delta_temp), - TP_ARGS(tz, req_power, total_req_power, granted_power, - total_granted_power, num_actors, power_range, - max_allocatable_power, current_temp, delta_temp), + TP_PROTO(struct thermal_zone_device *tz, u32 total_req_power, + u32 total_granted_power, int num_actors, u32 power_range, + u32 max_allocatable_power, int current_temp, s32 delta_temp), + TP_ARGS(tz, total_req_power, total_granted_power, num_actors, + power_range, max_allocatable_power, current_temp, delta_temp), TP_STRUCT__entry( __field(int, tz_id ) - __dynamic_array(u32, req_power, num_actors ) __field(u32, total_req_power ) - __dynamic_array(u32, granted_power, num_actors) __field(u32, total_granted_power ) __field(size_t, num_actors ) __field(u32, power_range ) @@ -30,11 +25,7 @@ TRACE_EVENT(thermal_power_allocator, ), TP_fast_assign( __entry->tz_id = tz->id; - memcpy(__get_dynamic_array(req_power), req_power, - num_actors * sizeof(*req_power)); __entry->total_req_power = total_req_power; - memcpy(__get_dynamic_array(granted_power), granted_power, - num_actors * sizeof(*granted_power)); __entry->total_granted_power = total_granted_power; __entry->num_actors = num_actors; __entry->power_range = power_range; @@ -43,18 +34,35 @@ TRACE_EVENT(thermal_power_allocator, __entry->delta_temp = delta_temp; ), - TP_printk("thermal_zone_id=%d req_power={%s} total_req_power=%u granted_power={%s} total_granted_power=%u power_range=%u max_allocatable_power=%u current_temperature=%d delta_temperature=%d", - __entry->tz_id, - __print_array(__get_dynamic_array(req_power), - __entry->num_actors, 4), - __entry->total_req_power, - __print_array(__get_dynamic_array(granted_power), - __entry->num_actors, 4), + TP_printk("thermal_zone_id=%d total_req_power=%u total_granted_power=%u power_range=%u max_allocatable_power=%u current_temperature=%d delta_temperature=%d", + __entry->tz_id, __entry->total_req_power, __entry->total_granted_power, __entry->power_range, __entry->max_allocatable_power, __entry->current_temp, __entry->delta_temp) ); +TRACE_EVENT(thermal_power_actor, + TP_PROTO(struct thermal_zone_device *tz, int actor_id, u32 req_power, + u32 granted_power), + TP_ARGS(tz, actor_id, req_power, granted_power), + TP_STRUCT__entry( + __field(int, tz_id) + __field(int, actor_id) + __field(u32, req_power) + __field(u32, granted_power) + ), + TP_fast_assign( + __entry->tz_id = tz->id; + __entry->actor_id = actor_id; + __entry->req_power = req_power; + __entry->granted_power = granted_power; + ), + + TP_printk("thermal_zone_id=%d actor_id=%d req_power=%u granted_power=%u", + __entry->tz_id, __entry->actor_id, __entry->req_power, + __entry->granted_power) +); + TRACE_EVENT(thermal_power_allocator_pid, TP_PROTO(struct thermal_zone_device *tz, s32 err, s32 err_integral, s64 p, s64 i, s64 d, s32 output), diff --git a/drivers/thermal/thermal_trip.c b/drivers/thermal/thermal_trip.c index e42456442c68..8bffa1e5e206 100644 --- a/drivers/thermal/thermal_trip.c +++ b/drivers/thermal/thermal_trip.c @@ -63,25 +63,21 @@ EXPORT_SYMBOL_GPL(thermal_zone_get_num_trips); */ void __thermal_zone_set_trips(struct thermal_zone_device *tz) { - struct thermal_trip trip; + const struct thermal_trip *trip; int low = -INT_MAX, high = INT_MAX; bool same_trip = false; - int i, ret; + int ret; lockdep_assert_held(&tz->lock); if (!tz->ops->set_trips) return; - for (i = 0; i < tz->num_trips; i++) { + for_each_trip(tz, trip) { bool low_set = false; int trip_low; - ret = __thermal_zone_get_trip(tz, i , &trip); - if (ret) - return; - - trip_low = trip.temperature - trip.hysteresis; + trip_low = trip->temperature - trip->hysteresis; if (trip_low < tz->temperature && trip_low > low) { low = trip_low; @@ -89,9 +85,9 @@ void __thermal_zone_set_trips(struct thermal_zone_device *tz) same_trip = false; } - if (trip.temperature > tz->temperature && - trip.temperature < high) { - high = trip.temperature; + if (trip->temperature > tz->temperature && + trip->temperature < high) { + high = trip->temperature; same_trip = low_set; } } @@ -147,46 +143,7 @@ int thermal_zone_get_trip(struct thermal_zone_device *tz, int trip_id, } EXPORT_SYMBOL_GPL(thermal_zone_get_trip); -int thermal_zone_set_trip(struct thermal_zone_device *tz, int trip_id, - const struct thermal_trip *trip) -{ - struct thermal_trip t; - int ret; - - if (!tz->ops->set_trip_temp && !tz->ops->set_trip_hyst && !tz->trips) - return -EINVAL; - - ret = __thermal_zone_get_trip(tz, trip_id, &t); - if (ret) - return ret; - - if (t.type != trip->type) - return -EINVAL; - - if (t.temperature != trip->temperature && tz->ops->set_trip_temp) { - ret = tz->ops->set_trip_temp(tz, trip_id, trip->temperature); - if (ret) - return ret; - } - - if (t.hysteresis != trip->hysteresis && tz->ops->set_trip_hyst) { - ret = tz->ops->set_trip_hyst(tz, trip_id, trip->hysteresis); - if (ret) - return ret; - } - - if (tz->trips && (t.temperature != trip->temperature || t.hysteresis != trip->hysteresis)) - tz->trips[trip_id] = *trip; - - thermal_notify_tz_trip_change(tz->id, trip_id, trip->type, - trip->temperature, trip->hysteresis); - - __thermal_zone_device_update(tz, THERMAL_TRIP_CHANGED); - - return 0; -} - -int thermal_zone_trip_id(struct thermal_zone_device *tz, +int thermal_zone_trip_id(const struct thermal_zone_device *tz, const struct thermal_trip *trip) { /* @@ -195,3 +152,24 @@ int thermal_zone_trip_id(struct thermal_zone_device *tz, */ return trip - tz->trips; } +void thermal_zone_trip_updated(struct thermal_zone_device *tz, + const struct thermal_trip *trip) +{ + thermal_notify_tz_trip_change(tz->id, thermal_zone_trip_id(tz, trip), + trip->type, trip->temperature, + trip->hysteresis); + __thermal_zone_device_update(tz, THERMAL_TRIP_CHANGED); +} + +void thermal_zone_set_trip_temp(struct thermal_zone_device *tz, + struct thermal_trip *trip, int temp) +{ + if (trip->temperature == temp) + return; + + trip->temperature = temp; + thermal_notify_tz_trip_change(tz->id, thermal_zone_trip_id(tz, trip), + trip->type, trip->temperature, + trip->hysteresis); +} +EXPORT_SYMBOL_GPL(thermal_zone_set_trip_temp); diff --git a/include/linux/reboot.h b/include/linux/reboot.h index c4cc3b89ced1..abcdde4df697 100644 --- a/include/linux/reboot.h +++ b/include/linux/reboot.h @@ -177,7 +177,17 @@ void ctrl_alt_del(void); extern void orderly_poweroff(bool force); extern void orderly_reboot(void); -void hw_protection_shutdown(const char *reason, int ms_until_forced); +void __hw_protection_shutdown(const char *reason, int ms_until_forced, bool shutdown); + +static inline void hw_protection_reboot(const char *reason, int ms_until_forced) +{ + __hw_protection_shutdown(reason, ms_until_forced, false); +} + +static inline void hw_protection_shutdown(const char *reason, int ms_until_forced) +{ + __hw_protection_shutdown(reason, ms_until_forced, true); +} /* * Emergency restart, callable from an interrupt handler. diff --git a/include/linux/thermal.h b/include/linux/thermal.h index 35f620059456..bf84595a4e86 100644 --- a/include/linux/thermal.h +++ b/include/linux/thermal.h @@ -51,18 +51,23 @@ enum thermal_notify_event { THERMAL_DEVICE_POWER_CAPABILITY_CHANGED, /* power capability changed */ THERMAL_TABLE_CHANGED, /* Thermal table(s) changed */ THERMAL_EVENT_KEEP_ALIVE, /* Request for user space handler to respond */ + THERMAL_TZ_BIND_CDEV, /* Cooling dev is bind to the thermal zone */ + THERMAL_TZ_UNBIND_CDEV, /* Cooling dev is unbind from the thermal zone */ + THERMAL_INSTANCE_WEIGHT_CHANGED, /* Thermal instance weight changed */ }; /** * struct thermal_trip - representation of a point in temperature domain * @temperature: temperature value in miliCelsius * @hysteresis: relative hysteresis in miliCelsius + * @threshold: trip crossing notification threshold miliCelsius * @type: trip point type * @priv: pointer to driver data associated with this trip */ struct thermal_trip { int temperature; int hysteresis; + int threshold; enum thermal_trip_type type; void *priv; }; @@ -115,6 +120,7 @@ struct thermal_cooling_device { * @id: unique id number for each thermal zone * @type: the thermal zone device type * @device: &struct device for this thermal zone + * @removal: removal completion * @trip_temp_attrs: attributes for trip points for sysfs: trip temperature * @trip_type_attrs: attributes for trip points for sysfs: trip type * @trip_hyst_attrs: attributes for trip points for sysfs: trip hysteresis @@ -149,11 +155,13 @@ struct thermal_cooling_device { * @node: node in thermal_tz_list (in thermal_core.c) * @poll_queue: delayed work for polling * @notify_event: Last notification event + * @suspended: thermal zone suspend indicator */ struct thermal_zone_device { int id; char type[THERMAL_NAME_LENGTH]; struct device device; + struct completion removal; struct attribute_group trips_attribute_group; struct thermal_attr *trip_temp_attrs; struct thermal_attr *trip_type_attrs; @@ -181,6 +189,7 @@ struct thermal_zone_device { struct list_head node; struct delayed_work poll_queue; enum thermal_notify_event notify_event; + bool suspended; }; /** @@ -193,6 +202,8 @@ struct thermal_zone_device { * thermal zone. * @throttle: callback called for every trip point even if temperature is * below the trip point temperature + * @update_tz: callback called when thermal zone internals have changed, e.g. + * thermal cooling instance was added/removed * @governor_list: node in thermal_governor_list (in thermal_core.c) */ struct thermal_governor { @@ -201,6 +212,8 @@ struct thermal_governor { void (*unbind_from_tz)(struct thermal_zone_device *tz); int (*throttle)(struct thermal_zone_device *tz, const struct thermal_trip *trip); + void (*update_tz)(struct thermal_zone_device *tz, + enum thermal_notify_event reason); struct list_head governor_list; }; @@ -280,10 +293,6 @@ int __thermal_zone_get_trip(struct thermal_zone_device *tz, int trip_id, struct thermal_trip *trip); int thermal_zone_get_trip(struct thermal_zone_device *tz, int trip_id, struct thermal_trip *trip); - -int thermal_zone_set_trip(struct thermal_zone_device *tz, int trip_id, - const struct thermal_trip *trip); - int for_each_thermal_trip(struct thermal_zone_device *tz, int (*cb)(struct thermal_trip *, void *), void *data); @@ -291,6 +300,8 @@ int thermal_zone_for_each_trip(struct thermal_zone_device *tz, int (*cb)(struct thermal_trip *, void *), void *data); int thermal_zone_get_num_trips(struct thermal_zone_device *tz); +void thermal_zone_set_trip_temp(struct thermal_zone_device *tz, + struct thermal_trip *trip, int temp); int thermal_zone_get_crit_temp(struct thermal_zone_device *tz, int *temp); diff --git a/kernel/reboot.c b/kernel/reboot.c index c3a3b82c4f64..22c16e2564cc 100644 --- a/kernel/reboot.c +++ b/kernel/reboot.c @@ -970,21 +970,24 @@ static void hw_failure_emergency_poweroff(int poweroff_delay_ms) } /** - * hw_protection_shutdown - Trigger an emergency system poweroff + * __hw_protection_shutdown - Trigger an emergency system shutdown or reboot * - * @reason: Reason of emergency shutdown to be printed. - * @ms_until_forced: Time to wait for orderly shutdown before tiggering a - * forced shudown. Negative value disables the forced - * shutdown. + * @reason: Reason of emergency shutdown or reboot to be printed. + * @ms_until_forced: Time to wait for orderly shutdown or reboot before + * triggering it. Negative value disables the forced + * shutdown or reboot. + * @shutdown: If true, indicates that a shutdown will happen + * after the critical tempeature is reached. + * If false, indicates that a reboot will happen + * after the critical tempeature is reached. * - * Initiate an emergency system shutdown in order to protect hardware from - * further damage. Usage examples include a thermal protection or a voltage or - * current regulator failures. - * NOTE: The request is ignored if protection shutdown is already pending even - * if the previous request has given a large timeout for forced shutdown. - * Can be called from any context. + * Initiate an emergency system shutdown or reboot in order to protect + * hardware from further damage. Usage examples include a thermal protection. + * NOTE: The request is ignored if protection shutdown or reboot is already + * pending even if the previous request has given a large timeout for forced + * shutdown/reboot. */ -void hw_protection_shutdown(const char *reason, int ms_until_forced) +void __hw_protection_shutdown(const char *reason, int ms_until_forced, bool shutdown) { static atomic_t allow_proceed = ATOMIC_INIT(1); @@ -999,9 +1002,12 @@ void hw_protection_shutdown(const char *reason, int ms_until_forced) * orderly_poweroff failure */ hw_failure_emergency_poweroff(ms_until_forced); - orderly_poweroff(true); + if (shutdown) + orderly_poweroff(true); + else + orderly_reboot(); } -EXPORT_SYMBOL_GPL(hw_protection_shutdown); +EXPORT_SYMBOL_GPL(__hw_protection_shutdown); static int __init reboot_setup(char *str) { diff --git a/tools/thermal/tmon/tui.c b/tools/thermal/tmon/tui.c index 031b258667d8..7f5dd2b87f15 100644 --- a/tools/thermal/tmon/tui.c +++ b/tools/thermal/tmon/tui.c @@ -213,7 +213,7 @@ void show_cooling_device(void) * cooling device instances. skip unused idr. */ mvwprintw(cooling_device_window, j + 2, 1, - "%02d %12.12s%6d %6d", + "%02d %12.12s%6lu %6lu", ptdata.cdi[j].instance, ptdata.cdi[j].type, ptdata.cdi[j].cur_state, |