Resguardo inicial

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/therm/Kbuild

@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: MIT
+nvkm-y += nvkm/subdev/therm/base.o
+nvkm-y += nvkm/subdev/therm/fan.o
+nvkm-y += nvkm/subdev/therm/fannil.o
+nvkm-y += nvkm/subdev/therm/fanpwm.o
+nvkm-y += nvkm/subdev/therm/fantog.o
+nvkm-y += nvkm/subdev/therm/ic.o
+nvkm-y += nvkm/subdev/therm/temp.o
+nvkm-y += nvkm/subdev/therm/nv40.o
+nvkm-y += nvkm/subdev/therm/nv50.o
+nvkm-y += nvkm/subdev/therm/g84.o
+nvkm-y += nvkm/subdev/therm/gt215.o
+nvkm-y += nvkm/subdev/therm/gf100.o
+nvkm-y += nvkm/subdev/therm/gf119.o
+nvkm-y += nvkm/subdev/therm/gk104.o
+nvkm-y += nvkm/subdev/therm/gm107.o
+nvkm-y += nvkm/subdev/therm/gm200.o
+nvkm-y += nvkm/subdev/therm/gp100.o

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c

@@ -0,0 +1,455 @@
+/*
+ * Copyright 2012 The Nouveau community
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Martin Peres
+ */
+#include "priv.h"
+
+#include <core/option.h>
+#include <subdev/pmu.h>
+
+int
+nvkm_therm_temp_get(struct nvkm_therm *therm)
+{
+	if (therm->func->temp_get)
+		return therm->func->temp_get(therm);
+	return -ENODEV;
+}
+
+static int
+nvkm_therm_update_trip(struct nvkm_therm *therm)
+{
+	struct nvbios_therm_trip_point *trip = therm->fan->bios.trip,
+				       *cur_trip = NULL,
+				       *last_trip = therm->last_trip;
+	u8  temp = therm->func->temp_get(therm);
+	u16 duty, i;
+
+	/* look for the trip point corresponding to the current temperature */
+	cur_trip = NULL;
+	for (i = 0; i < therm->fan->bios.nr_fan_trip; i++) {
+		if (temp >= trip[i].temp)
+			cur_trip = &trip[i];
+	}
+
+	/* account for the hysteresis cycle */
+	if (last_trip && temp <= (last_trip->temp) &&
+	    temp > (last_trip->temp - last_trip->hysteresis))
+		cur_trip = last_trip;
+
+	if (cur_trip) {
+		duty = cur_trip->fan_duty;
+		therm->last_trip = cur_trip;
+	} else {
+		duty = 0;
+		therm->last_trip = NULL;
+	}
+
+	return duty;
+}
+
+static int
+nvkm_therm_compute_linear_duty(struct nvkm_therm *therm, u8 linear_min_temp,
+                               u8 linear_max_temp)
+{
+	u8  temp = therm->func->temp_get(therm);
+	u16 duty;
+
+	/* handle the non-linear part first */
+	if (temp < linear_min_temp)
+		return therm->fan->bios.min_duty;
+	else if (temp > linear_max_temp)
+		return therm->fan->bios.max_duty;
+
+	/* we are in the linear zone */
+	duty  = (temp - linear_min_temp);
+	duty *= (therm->fan->bios.max_duty - therm->fan->bios.min_duty);
+	duty /= (linear_max_temp - linear_min_temp);
+	duty += therm->fan->bios.min_duty;
+	return duty;
+}
+
+static int
+nvkm_therm_update_linear(struct nvkm_therm *therm)
+{
+	u8  min = therm->fan->bios.linear_min_temp;
+	u8  max = therm->fan->bios.linear_max_temp;
+	return nvkm_therm_compute_linear_duty(therm, min, max);
+}
+
+static int
+nvkm_therm_update_linear_fallback(struct nvkm_therm *therm)
+{
+	u8 max = therm->bios_sensor.thrs_fan_boost.temp;
+	return nvkm_therm_compute_linear_duty(therm, 30, max);
+}
+
+static void
+nvkm_therm_update(struct nvkm_therm *therm, int mode)
+{
+	struct nvkm_subdev *subdev = &therm->subdev;
+	struct nvkm_timer *tmr = subdev->device->timer;
+	unsigned long flags;
+	bool immd = true;
+	bool poll = true;
+	int duty = -1;
+
+	spin_lock_irqsave(&therm->lock, flags);
+	if (mode < 0)
+		mode = therm->mode;
+	therm->mode = mode;
+
+	switch (mode) {
+	case NVKM_THERM_CTRL_MANUAL:
+		nvkm_timer_alarm(tmr, 0, &therm->alarm);
+		duty = nvkm_therm_fan_get(therm);
+		if (duty < 0)
+			duty = 100;
+		poll = false;
+		break;
+	case NVKM_THERM_CTRL_AUTO:
+		switch(therm->fan->bios.fan_mode) {
+		case NVBIOS_THERM_FAN_TRIP:
+			duty = nvkm_therm_update_trip(therm);
+			break;
+		case NVBIOS_THERM_FAN_LINEAR:
+			duty = nvkm_therm_update_linear(therm);
+			break;
+		case NVBIOS_THERM_FAN_OTHER:
+			if (therm->cstate) {
+				duty = therm->cstate;
+				poll = false;
+			} else {
+				duty = nvkm_therm_update_linear_fallback(therm);
+			}
+			break;
+		}
+		immd = false;
+		break;
+	case NVKM_THERM_CTRL_NONE:
+	default:
+		nvkm_timer_alarm(tmr, 0, &therm->alarm);
+		poll = false;
+	}
+
+	if (poll)
+		nvkm_timer_alarm(tmr, 1000000000ULL, &therm->alarm);
+	spin_unlock_irqrestore(&therm->lock, flags);
+
+	if (duty >= 0) {
+		nvkm_debug(subdev, "FAN target request: %d%%\n", duty);
+		nvkm_therm_fan_set(therm, immd, duty);
+	}
+}
+
+int
+nvkm_therm_cstate(struct nvkm_therm *therm, int fan, int dir)
+{
+	struct nvkm_subdev *subdev = &therm->subdev;
+	if (!dir || (dir < 0 && fan < therm->cstate) ||
+		    (dir > 0 && fan > therm->cstate)) {
+		nvkm_debug(subdev, "default fan speed -> %d%%\n", fan);
+		therm->cstate = fan;
+		nvkm_therm_update(therm, -1);
+	}
+	return 0;
+}
+
+static void
+nvkm_therm_alarm(struct nvkm_alarm *alarm)
+{
+	struct nvkm_therm *therm =
+	       container_of(alarm, struct nvkm_therm, alarm);
+	nvkm_therm_update(therm, -1);
+}
+
+int
+nvkm_therm_fan_mode(struct nvkm_therm *therm, int mode)
+{
+	struct nvkm_subdev *subdev = &therm->subdev;
+	struct nvkm_device *device = subdev->device;
+	static const char *name[] = {
+		"disabled",
+		"manual",
+		"automatic"
+	};
+
+	/* The default PPWR ucode on fermi interferes with fan management */
+	if ((mode >= ARRAY_SIZE(name)) ||
+	    (mode != NVKM_THERM_CTRL_NONE && nvkm_pmu_fan_controlled(device)))
+		return -EINVAL;
+
+	/* do not allow automatic fan management if the thermal sensor is
+	 * not available */
+	if (mode == NVKM_THERM_CTRL_AUTO &&
+	    therm->func->temp_get(therm) < 0)
+		return -EINVAL;
+
+	if (therm->mode == mode)
+		return 0;
+
+	nvkm_debug(subdev, "fan management: %s\n", name[mode]);
+	nvkm_therm_update(therm, mode);
+	return 0;
+}
+
+int
+nvkm_therm_attr_get(struct nvkm_therm *therm, enum nvkm_therm_attr_type type)
+{
+	switch (type) {
+	case NVKM_THERM_ATTR_FAN_MIN_DUTY:
+		return therm->fan->bios.min_duty;
+	case NVKM_THERM_ATTR_FAN_MAX_DUTY:
+		return therm->fan->bios.max_duty;
+	case NVKM_THERM_ATTR_FAN_MODE:
+		return therm->mode;
+	case NVKM_THERM_ATTR_THRS_FAN_BOOST:
+		return therm->bios_sensor.thrs_fan_boost.temp;
+	case NVKM_THERM_ATTR_THRS_FAN_BOOST_HYST:
+		return therm->bios_sensor.thrs_fan_boost.hysteresis;
+	case NVKM_THERM_ATTR_THRS_DOWN_CLK:
+		return therm->bios_sensor.thrs_down_clock.temp;
+	case NVKM_THERM_ATTR_THRS_DOWN_CLK_HYST:
+		return therm->bios_sensor.thrs_down_clock.hysteresis;
+	case NVKM_THERM_ATTR_THRS_CRITICAL:
+		return therm->bios_sensor.thrs_critical.temp;
+	case NVKM_THERM_ATTR_THRS_CRITICAL_HYST:
+		return therm->bios_sensor.thrs_critical.hysteresis;
+	case NVKM_THERM_ATTR_THRS_SHUTDOWN:
+		return therm->bios_sensor.thrs_shutdown.temp;
+	case NVKM_THERM_ATTR_THRS_SHUTDOWN_HYST:
+		return therm->bios_sensor.thrs_shutdown.hysteresis;
+	}
+
+	return -EINVAL;
+}
+
+int
+nvkm_therm_attr_set(struct nvkm_therm *therm,
+		    enum nvkm_therm_attr_type type, int value)
+{
+	switch (type) {
+	case NVKM_THERM_ATTR_FAN_MIN_DUTY:
+		if (value < 0)
+			value = 0;
+		if (value > therm->fan->bios.max_duty)
+			value = therm->fan->bios.max_duty;
+		therm->fan->bios.min_duty = value;
+		return 0;
+	case NVKM_THERM_ATTR_FAN_MAX_DUTY:
+		if (value < 0)
+			value = 0;
+		if (value < therm->fan->bios.min_duty)
+			value = therm->fan->bios.min_duty;
+		therm->fan->bios.max_duty = value;
+		return 0;
+	case NVKM_THERM_ATTR_FAN_MODE:
+		return nvkm_therm_fan_mode(therm, value);
+	case NVKM_THERM_ATTR_THRS_FAN_BOOST:
+		therm->bios_sensor.thrs_fan_boost.temp = value;
+		therm->func->program_alarms(therm);
+		return 0;
+	case NVKM_THERM_ATTR_THRS_FAN_BOOST_HYST:
+		therm->bios_sensor.thrs_fan_boost.hysteresis = value;
+		therm->func->program_alarms(therm);
+		return 0;
+	case NVKM_THERM_ATTR_THRS_DOWN_CLK:
+		therm->bios_sensor.thrs_down_clock.temp = value;
+		therm->func->program_alarms(therm);
+		return 0;
+	case NVKM_THERM_ATTR_THRS_DOWN_CLK_HYST:
+		therm->bios_sensor.thrs_down_clock.hysteresis = value;
+		therm->func->program_alarms(therm);
+		return 0;
+	case NVKM_THERM_ATTR_THRS_CRITICAL:
+		therm->bios_sensor.thrs_critical.temp = value;
+		therm->func->program_alarms(therm);
+		return 0;
+	case NVKM_THERM_ATTR_THRS_CRITICAL_HYST:
+		therm->bios_sensor.thrs_critical.hysteresis = value;
+		therm->func->program_alarms(therm);
+		return 0;
+	case NVKM_THERM_ATTR_THRS_SHUTDOWN:
+		therm->bios_sensor.thrs_shutdown.temp = value;
+		therm->func->program_alarms(therm);
+		return 0;
+	case NVKM_THERM_ATTR_THRS_SHUTDOWN_HYST:
+		therm->bios_sensor.thrs_shutdown.hysteresis = value;
+		therm->func->program_alarms(therm);
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+void
+nvkm_therm_clkgate_enable(struct nvkm_therm *therm)
+{
+	if (!therm || !therm->func->clkgate_enable || !therm->clkgating_enabled)
+		return;
+
+	nvkm_debug(&therm->subdev,
+		   "Enabling clockgating\n");
+	therm->func->clkgate_enable(therm);
+}
+
+void
+nvkm_therm_clkgate_fini(struct nvkm_therm *therm, bool suspend)
+{
+	if (!therm || !therm->func->clkgate_fini || !therm->clkgating_enabled)
+		return;
+
+	nvkm_debug(&therm->subdev,
+		   "Preparing clockgating for %s\n",
+		   suspend ? "suspend" : "fini");
+	therm->func->clkgate_fini(therm, suspend);
+}
+
+static void
+nvkm_therm_clkgate_oneinit(struct nvkm_therm *therm)
+{
+	if (!therm->func->clkgate_enable || !therm->clkgating_enabled)
+		return;
+
+	nvkm_info(&therm->subdev, "Clockgating enabled\n");
+}
+
+static void
+nvkm_therm_intr(struct nvkm_subdev *subdev)
+{
+	struct nvkm_therm *therm = nvkm_therm(subdev);
+	if (therm->func->intr)
+		therm->func->intr(therm);
+}
+
+static int
+nvkm_therm_fini(struct nvkm_subdev *subdev, enum nvkm_suspend_state suspend)
+{
+	struct nvkm_therm *therm = nvkm_therm(subdev);
+
+	if (therm->func->fini)
+		therm->func->fini(therm);
+
+	nvkm_therm_fan_fini(therm, suspend != NVKM_POWEROFF);
+	nvkm_therm_sensor_fini(therm, suspend != NVKM_POWEROFF);
+
+	if (suspend) {
+		therm->suspend = therm->mode;
+		therm->mode = NVKM_THERM_CTRL_NONE;
+	}
+
+	return 0;
+}
+
+static int
+nvkm_therm_oneinit(struct nvkm_subdev *subdev)
+{
+	struct nvkm_therm *therm = nvkm_therm(subdev);
+	nvkm_therm_sensor_ctor(therm);
+	nvkm_therm_ic_ctor(therm);
+	nvkm_therm_fan_ctor(therm);
+	nvkm_therm_fan_mode(therm, NVKM_THERM_CTRL_AUTO);
+	nvkm_therm_sensor_preinit(therm);
+	nvkm_therm_clkgate_oneinit(therm);
+	return 0;
+}
+
+static int
+nvkm_therm_init(struct nvkm_subdev *subdev)
+{
+	struct nvkm_therm *therm = nvkm_therm(subdev);
+
+	if (therm->func->init)
+		therm->func->init(therm);
+
+	if (therm->suspend >= 0) {
+		/* restore the pwm value only when on manual or auto mode */
+		if (therm->suspend > 0)
+			nvkm_therm_fan_set(therm, true, therm->fan->percent);
+
+		nvkm_therm_fan_mode(therm, therm->suspend);
+	}
+
+	nvkm_therm_sensor_init(therm);
+	nvkm_therm_fan_init(therm);
+	return 0;
+}
+
+void
+nvkm_therm_clkgate_init(struct nvkm_therm *therm,
+			const struct nvkm_therm_clkgate_pack *p)
+{
+	if (!therm || !therm->func->clkgate_init || !therm->clkgating_enabled)
+		return;
+
+	therm->func->clkgate_init(therm, p);
+}
+
+static void *
+nvkm_therm_dtor(struct nvkm_subdev *subdev)
+{
+	struct nvkm_therm *therm = nvkm_therm(subdev);
+	kfree(therm->fan);
+	return therm;
+}
+
+static const struct nvkm_subdev_func
+nvkm_therm = {
+	.dtor = nvkm_therm_dtor,
+	.oneinit = nvkm_therm_oneinit,
+	.init = nvkm_therm_init,
+	.fini = nvkm_therm_fini,
+	.intr = nvkm_therm_intr,
+};
+
+void
+nvkm_therm_ctor(struct nvkm_therm *therm, struct nvkm_device *device, enum nvkm_subdev_type type,
+		int inst, const struct nvkm_therm_func *func)
+{
+	nvkm_subdev_ctor(&nvkm_therm, device, type, inst, &therm->subdev);
+	therm->func = func;
+
+	nvkm_alarm_init(&therm->alarm, nvkm_therm_alarm);
+	spin_lock_init(&therm->lock);
+	spin_lock_init(&therm->sensor.alarm_program_lock);
+
+	therm->fan_get = nvkm_therm_fan_user_get;
+	therm->fan_set = nvkm_therm_fan_user_set;
+	therm->attr_get = nvkm_therm_attr_get;
+	therm->attr_set = nvkm_therm_attr_set;
+	therm->mode = therm->suspend = -1; /* undefined */
+
+	therm->clkgating_enabled = nvkm_boolopt(device->cfgopt,
+						"NvPmEnableGating", false);
+}
+
+int
+nvkm_therm_new_(const struct nvkm_therm_func *func, struct nvkm_device *device,
+		enum nvkm_subdev_type type, int inst, struct nvkm_therm **ptherm)
+{
+	struct nvkm_therm *therm;
+
+	if (!(therm = *ptherm = kzalloc_obj(*therm)))
+		return -ENOMEM;
+
+	nvkm_therm_ctor(therm, device, type, inst, func);
+	return 0;
+}

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/therm/fan.c

@@ -0,0 +1,279 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ * 	    Martin Peres
+ */
+#include "priv.h"
+
+#include <subdev/bios/fan.h>
+#include <subdev/gpio.h>
+#include <subdev/timer.h>
+
+static int
+nvkm_fan_update(struct nvkm_fan *fan, bool immediate, int target)
+{
+	struct nvkm_therm *therm = fan->parent;
+	struct nvkm_subdev *subdev = &therm->subdev;
+	struct nvkm_timer *tmr = subdev->device->timer;
+	unsigned long flags;
+	int ret = 0;
+	int duty;
+
+	/* update target fan speed, restricting to allowed range */
+	spin_lock_irqsave(&fan->lock, flags);
+	if (target < 0)
+		target = fan->percent;
+	target = max_t(u8, target, fan->bios.min_duty);
+	target = min_t(u8, target, fan->bios.max_duty);
+	if (fan->percent != target) {
+		nvkm_debug(subdev, "FAN target: %d\n", target);
+		fan->percent = target;
+	}
+
+	/* check that we're not already at the target duty cycle */
+	duty = fan->get(therm);
+	if (duty == target) {
+		spin_unlock_irqrestore(&fan->lock, flags);
+		return 0;
+	}
+
+	/* smooth out the fanspeed increase/decrease */
+	if (!immediate && duty >= 0) {
+		/* the constant "3" is a rough approximation taken from
+		 * nvidia's behaviour.
+		 * it is meant to bump the fan speed more incrementally
+		 */
+		if (duty < target)
+			duty = min(duty + 3, target);
+		else if (duty > target)
+			duty = max(duty - 3, target);
+	} else {
+		duty = target;
+	}
+
+	nvkm_debug(subdev, "FAN update: %d\n", duty);
+	ret = fan->set(therm, duty);
+	if (ret) {
+		spin_unlock_irqrestore(&fan->lock, flags);
+		return ret;
+	}
+
+	/* fan speed updated, drop the fan lock before grabbing the
+	 * alarm-scheduling lock and risking a deadlock
+	 */
+	spin_unlock_irqrestore(&fan->lock, flags);
+
+	/* schedule next fan update, if not at target speed already */
+	if (target != duty) {
+		u16 bump_period = fan->bios.bump_period;
+		u16 slow_down_period = fan->bios.slow_down_period;
+		u64 delay;
+
+		if (duty > target)
+			delay = slow_down_period;
+		else if (duty == target)
+			delay = min(bump_period, slow_down_period) ;
+		else
+			delay = bump_period;
+
+		nvkm_timer_alarm(tmr, delay * 1000 * 1000, &fan->alarm);
+	}
+
+	return ret;
+}
+
+static void
+nvkm_fan_alarm(struct nvkm_alarm *alarm)
+{
+	struct nvkm_fan *fan = container_of(alarm, struct nvkm_fan, alarm);
+	nvkm_fan_update(fan, false, -1);
+}
+
+int
+nvkm_therm_fan_get(struct nvkm_therm *therm)
+{
+	return therm->fan->get(therm);
+}
+
+int
+nvkm_therm_fan_set(struct nvkm_therm *therm, bool immediate, int percent)
+{
+	return nvkm_fan_update(therm->fan, immediate, percent);
+}
+
+int
+nvkm_therm_fan_sense(struct nvkm_therm *therm)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	struct nvkm_timer *tmr = device->timer;
+	struct nvkm_gpio *gpio = device->gpio;
+	u32 cycles, cur, prev;
+	u64 start, end, tach;
+
+	if (therm->func->fan_sense)
+		return therm->func->fan_sense(therm);
+
+	if (therm->fan->tach.func == DCB_GPIO_UNUSED)
+		return -ENODEV;
+
+	/* Time a complete rotation and extrapolate to RPM:
+	 * When the fan spins, it changes the value of GPIO FAN_SENSE.
+	 * We get 4 changes (0 -> 1 -> 0 -> 1) per complete rotation.
+	 */
+	start = nvkm_timer_read(tmr);
+	prev = nvkm_gpio_get(gpio, 0, therm->fan->tach.func,
+				      therm->fan->tach.line);
+	cycles = 0;
+	do {
+		usleep_range(500, 1000); /* supports 0 < rpm < 7500 */
+
+		cur = nvkm_gpio_get(gpio, 0, therm->fan->tach.func,
+					     therm->fan->tach.line);
+		if (prev != cur) {
+			if (!start)
+				start = nvkm_timer_read(tmr);
+			cycles++;
+			prev = cur;
+		}
+	} while (cycles < 5 && nvkm_timer_read(tmr) - start < 250000000);
+	end = nvkm_timer_read(tmr);
+
+	if (cycles == 5) {
+		tach = (u64)60000000000ULL;
+		do_div(tach, (end - start));
+		return tach;
+	} else
+		return 0;
+}
+
+int
+nvkm_therm_fan_user_get(struct nvkm_therm *therm)
+{
+	return nvkm_therm_fan_get(therm);
+}
+
+int
+nvkm_therm_fan_user_set(struct nvkm_therm *therm, int percent)
+{
+	if (therm->mode != NVKM_THERM_CTRL_MANUAL)
+		return -EINVAL;
+
+	return nvkm_therm_fan_set(therm, true, percent);
+}
+
+static void
+nvkm_therm_fan_set_defaults(struct nvkm_therm *therm)
+{
+	therm->fan->bios.pwm_freq = 0;
+	therm->fan->bios.min_duty = 0;
+	therm->fan->bios.max_duty = 100;
+	therm->fan->bios.bump_period = 500;
+	therm->fan->bios.slow_down_period = 2000;
+	therm->fan->bios.linear_min_temp = 40;
+	therm->fan->bios.linear_max_temp = 85;
+}
+
+static void
+nvkm_therm_fan_safety_checks(struct nvkm_therm *therm)
+{
+	if (therm->fan->bios.min_duty > 100)
+		therm->fan->bios.min_duty = 100;
+	if (therm->fan->bios.max_duty > 100)
+		therm->fan->bios.max_duty = 100;
+
+	if (therm->fan->bios.min_duty > therm->fan->bios.max_duty)
+		therm->fan->bios.min_duty = therm->fan->bios.max_duty;
+}
+
+int
+nvkm_therm_fan_init(struct nvkm_therm *therm)
+{
+	return 0;
+}
+
+int
+nvkm_therm_fan_fini(struct nvkm_therm *therm, bool suspend)
+{
+	struct nvkm_timer *tmr = therm->subdev.device->timer;
+	if (suspend)
+		nvkm_timer_alarm(tmr, 0, &therm->fan->alarm);
+	return 0;
+}
+
+int
+nvkm_therm_fan_ctor(struct nvkm_therm *therm)
+{
+	struct nvkm_subdev *subdev = &therm->subdev;
+	struct nvkm_device *device = subdev->device;
+	struct nvkm_gpio *gpio = device->gpio;
+	struct nvkm_bios *bios = device->bios;
+	struct dcb_gpio_func func;
+	int ret;
+
+	/* attempt to locate a drivable fan, and determine control method */
+	ret = nvkm_gpio_find(gpio, 0, DCB_GPIO_FAN, 0xff, &func);
+	if (ret == 0) {
+		/* FIXME: is this really the place to perform such checks ? */
+		if (func.line != 16 && func.log[0] & DCB_GPIO_LOG_DIR_IN) {
+			nvkm_debug(subdev, "GPIO_FAN is in input mode\n");
+			ret = -EINVAL;
+		} else {
+			ret = nvkm_fanpwm_create(therm, &func);
+			if (ret != 0)
+				ret = nvkm_fantog_create(therm, &func);
+		}
+	}
+
+	/* no controllable fan found, create a dummy fan module */
+	if (ret != 0) {
+		ret = nvkm_fannil_create(therm);
+		if (ret)
+			return ret;
+	}
+
+	nvkm_debug(subdev, "FAN control: %s\n", therm->fan->type);
+
+	/* read the current speed, it is useful when resuming */
+	therm->fan->percent = nvkm_therm_fan_get(therm);
+
+	/* attempt to detect a tachometer connection */
+	ret = nvkm_gpio_find(gpio, 0, DCB_GPIO_FAN_SENSE, 0xff,
+			     &therm->fan->tach);
+	if (ret)
+		therm->fan->tach.func = DCB_GPIO_UNUSED;
+
+	/* initialise fan bump/slow update handling */
+	therm->fan->parent = therm;
+	nvkm_alarm_init(&therm->fan->alarm, nvkm_fan_alarm);
+	spin_lock_init(&therm->fan->lock);
+
+	/* other random init... */
+	nvkm_therm_fan_set_defaults(therm);
+	nvbios_perf_fan_parse(bios, &therm->fan->perf);
+	if (!nvbios_fan_parse(bios, &therm->fan->bios)) {
+		nvkm_debug(subdev, "parsing the fan table failed\n");
+		if (nvbios_therm_fan_parse(bios, &therm->fan->bios))
+			nvkm_error(subdev, "parsing both fan tables failed\n");
+	}
+	nvkm_therm_fan_safety_checks(therm);
+	return 0;
+}

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/therm/fannil.c

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "priv.h"
+
+static int
+nvkm_fannil_get(struct nvkm_therm *therm)
+{
+	return -ENODEV;
+}
+
+static int
+nvkm_fannil_set(struct nvkm_therm *therm, int percent)
+{
+	return -ENODEV;
+}
+
+int
+nvkm_fannil_create(struct nvkm_therm *therm)
+{
+	struct nvkm_fan *priv;
+
+	priv = kzalloc_obj(*priv);
+	therm->fan = priv;
+	if (!priv)
+		return -ENOMEM;
+
+	priv->type = "none / external";
+	priv->get = nvkm_fannil_get;
+	priv->set = nvkm_fannil_set;
+	return 0;
+}

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/therm/fanpwm.c

@@ -0,0 +1,110 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ * 	    Martin Peres
+ */
+#include "priv.h"
+
+#include <core/option.h>
+#include <subdev/bios.h>
+#include <subdev/bios/fan.h>
+#include <subdev/gpio.h>
+
+struct nvkm_fanpwm {
+	struct nvkm_fan base;
+	struct dcb_gpio_func func;
+};
+
+static int
+nvkm_fanpwm_get(struct nvkm_therm *therm)
+{
+	struct nvkm_fanpwm *fan = (void *)therm->fan;
+	struct nvkm_device *device = therm->subdev.device;
+	struct nvkm_gpio *gpio = device->gpio;
+	int card_type = device->card_type;
+	u32 divs, duty;
+	int ret;
+
+	ret = therm->func->pwm_get(therm, fan->func.line, &divs, &duty);
+	if (ret == 0 && divs) {
+		divs = max(divs, duty);
+		if (card_type <= NV_40 || (fan->func.log[0] & 1))
+			duty = divs - duty;
+		return (duty * 100) / divs;
+	}
+
+	return nvkm_gpio_get(gpio, 0, fan->func.func, fan->func.line) * 100;
+}
+
+static int
+nvkm_fanpwm_set(struct nvkm_therm *therm, int percent)
+{
+	struct nvkm_fanpwm *fan = (void *)therm->fan;
+	int card_type = therm->subdev.device->card_type;
+	u32 divs, duty;
+	int ret;
+
+	divs = fan->base.perf.pwm_divisor;
+	if (fan->base.bios.pwm_freq) {
+		divs = 1;
+		if (therm->func->pwm_clock)
+			divs = therm->func->pwm_clock(therm, fan->func.line);
+		divs /= fan->base.bios.pwm_freq;
+	}
+
+	duty = ((divs * percent) + 99) / 100;
+	if (card_type <= NV_40 || (fan->func.log[0] & 1))
+		duty = divs - duty;
+
+	ret = therm->func->pwm_set(therm, fan->func.line, divs, duty);
+	if (ret == 0)
+		ret = therm->func->pwm_ctrl(therm, fan->func.line, true);
+	return ret;
+}
+
+int
+nvkm_fanpwm_create(struct nvkm_therm *therm, struct dcb_gpio_func *func)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	struct nvkm_bios *bios = device->bios;
+	struct nvkm_fanpwm *fan;
+	struct nvbios_therm_fan info = {};
+	u32 divs, duty;
+
+	nvbios_fan_parse(bios, &info);
+
+	if (!nvkm_boolopt(device->cfgopt, "NvFanPWM", func->param) ||
+	    !therm->func->pwm_ctrl || info.type == NVBIOS_THERM_FAN_TOGGLE ||
+	     therm->func->pwm_get(therm, func->line, &divs, &duty) == -ENODEV)
+		return -ENODEV;
+
+	fan = kzalloc_obj(*fan);
+	if (!fan)
+		return -ENOMEM;
+
+	therm->fan = &fan->base;
+	fan->base.type = "PWM";
+	fan->base.get = nvkm_fanpwm_get;
+	fan->base.set = nvkm_fanpwm_set;
+	fan->func = *func;
+	return 0;
+}

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/therm/fantog.c

@@ -0,0 +1,116 @@
+/*
+ * Copyright 2012 The Nouveau community
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Martin Peres
+ */
+#include "priv.h"
+
+#include <subdev/gpio.h>
+#include <subdev/timer.h>
+
+struct nvkm_fantog {
+	struct nvkm_fan base;
+	struct nvkm_alarm alarm;
+	spinlock_t lock;
+	u32 period_us;
+	u32 percent;
+	struct dcb_gpio_func func;
+};
+
+static void
+nvkm_fantog_update(struct nvkm_fantog *fan, int percent)
+{
+	struct nvkm_therm *therm = fan->base.parent;
+	struct nvkm_device *device = therm->subdev.device;
+	struct nvkm_timer *tmr = device->timer;
+	struct nvkm_gpio *gpio = device->gpio;
+	unsigned long flags;
+	int duty;
+
+	spin_lock_irqsave(&fan->lock, flags);
+	if (percent < 0)
+		percent = fan->percent;
+	fan->percent = percent;
+
+	duty = !nvkm_gpio_get(gpio, 0, DCB_GPIO_FAN, 0xff);
+	nvkm_gpio_set(gpio, 0, DCB_GPIO_FAN, 0xff, duty);
+
+	if (percent != (duty * 100)) {
+		u64 next_change = (percent * fan->period_us) / 100;
+		if (!duty)
+			next_change = fan->period_us - next_change;
+		nvkm_timer_alarm(tmr, next_change * 1000, &fan->alarm);
+	}
+	spin_unlock_irqrestore(&fan->lock, flags);
+}
+
+static void
+nvkm_fantog_alarm(struct nvkm_alarm *alarm)
+{
+	struct nvkm_fantog *fan =
+	       container_of(alarm, struct nvkm_fantog, alarm);
+	nvkm_fantog_update(fan, -1);
+}
+
+static int
+nvkm_fantog_get(struct nvkm_therm *therm)
+{
+	struct nvkm_fantog *fan = (void *)therm->fan;
+	return fan->percent;
+}
+
+static int
+nvkm_fantog_set(struct nvkm_therm *therm, int percent)
+{
+	struct nvkm_fantog *fan = (void *)therm->fan;
+	if (therm->func->pwm_ctrl)
+		therm->func->pwm_ctrl(therm, fan->func.line, false);
+	nvkm_fantog_update(fan, percent);
+	return 0;
+}
+
+int
+nvkm_fantog_create(struct nvkm_therm *therm, struct dcb_gpio_func *func)
+{
+	struct nvkm_fantog *fan;
+	int ret;
+
+	if (therm->func->pwm_ctrl) {
+		ret = therm->func->pwm_ctrl(therm, func->line, false);
+		if (ret)
+			return ret;
+	}
+
+	fan = kzalloc_obj(*fan);
+	if (!fan)
+		return -ENOMEM;
+
+	therm->fan = &fan->base;
+	fan->base.type = "toggle";
+	fan->base.get = nvkm_fantog_get;
+	fan->base.set = nvkm_fantog_set;
+	nvkm_alarm_init(&fan->alarm, nvkm_fantog_alarm);
+	fan->period_us = 100000; /* 10Hz */
+	fan->percent = 100;
+	fan->func = *func;
+	spin_lock_init(&fan->lock);
+	return 0;
+}

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/therm/g84.c

@@ -0,0 +1,247 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ * 	    Martin Peres
+ */
+#include "priv.h"
+
+#include <subdev/fuse.h>
+
+int
+g84_temp_get(struct nvkm_therm *therm)
+{
+	struct nvkm_device *device = therm->subdev.device;
+
+	if (nvkm_fuse_read(device->fuse, 0x1a8) == 1)
+		return nvkm_rd32(device, 0x20400);
+	else
+		return -ENODEV;
+}
+
+void
+g84_sensor_setup(struct nvkm_therm *therm)
+{
+	struct nvkm_device *device = therm->subdev.device;
+
+	/* enable temperature reading for cards with insane defaults */
+	if (nvkm_fuse_read(device->fuse, 0x1a8) == 1) {
+		nvkm_mask(device, 0x20008, 0x80008000, 0x80000000);
+		nvkm_mask(device, 0x2000c, 0x80000003, 0x00000000);
+		mdelay(20); /* wait for the temperature to stabilize */
+	}
+}
+
+static void
+g84_therm_program_alarms(struct nvkm_therm *therm)
+{
+	struct nvbios_therm_sensor *sensor = &therm->bios_sensor;
+	struct nvkm_subdev *subdev = &therm->subdev;
+	struct nvkm_device *device = subdev->device;
+	unsigned long flags;
+
+	spin_lock_irqsave(&therm->sensor.alarm_program_lock, flags);
+
+	/* enable RISING and FALLING IRQs for shutdown, THRS 0, 1, 2 and 4 */
+	nvkm_wr32(device, 0x20000, 0x000003ff);
+
+	/* shutdown: The computer should be shutdown when reached */
+	nvkm_wr32(device, 0x20484, sensor->thrs_shutdown.hysteresis);
+	nvkm_wr32(device, 0x20480, sensor->thrs_shutdown.temp);
+
+	/* THRS_1 : fan boost*/
+	nvkm_wr32(device, 0x204c4, sensor->thrs_fan_boost.temp);
+
+	/* THRS_2 : critical */
+	nvkm_wr32(device, 0x204c0, sensor->thrs_critical.temp);
+
+	/* THRS_4 : down clock */
+	nvkm_wr32(device, 0x20414, sensor->thrs_down_clock.temp);
+	spin_unlock_irqrestore(&therm->sensor.alarm_program_lock, flags);
+
+	nvkm_debug(subdev,
+		   "Programmed thresholds [ %d(%d), %d(%d), %d(%d), %d(%d) ]\n",
+		   sensor->thrs_fan_boost.temp,
+		   sensor->thrs_fan_boost.hysteresis,
+		   sensor->thrs_down_clock.temp,
+		   sensor->thrs_down_clock.hysteresis,
+		   sensor->thrs_critical.temp,
+		   sensor->thrs_critical.hysteresis,
+		   sensor->thrs_shutdown.temp,
+		   sensor->thrs_shutdown.hysteresis);
+
+}
+
+/* must be called with alarm_program_lock taken ! */
+static void
+g84_therm_threshold_hyst_emulation(struct nvkm_therm *therm,
+				   uint32_t thrs_reg, u8 status_bit,
+				   const struct nvbios_therm_threshold *thrs,
+				   enum nvkm_therm_thrs thrs_name)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	enum nvkm_therm_thrs_direction direction;
+	enum nvkm_therm_thrs_state prev_state, new_state;
+	int temp, cur;
+
+	prev_state = nvkm_therm_sensor_get_threshold_state(therm, thrs_name);
+	temp = nvkm_rd32(device, thrs_reg);
+
+	/* program the next threshold */
+	if (temp == thrs->temp) {
+		nvkm_wr32(device, thrs_reg, thrs->temp - thrs->hysteresis);
+		new_state = NVKM_THERM_THRS_HIGHER;
+	} else {
+		nvkm_wr32(device, thrs_reg, thrs->temp);
+		new_state = NVKM_THERM_THRS_LOWER;
+	}
+
+	/* fix the state (in case someone reprogrammed the alarms) */
+	cur = therm->func->temp_get(therm);
+	if (new_state == NVKM_THERM_THRS_LOWER && cur > thrs->temp)
+		new_state = NVKM_THERM_THRS_HIGHER;
+	else if (new_state == NVKM_THERM_THRS_HIGHER &&
+		cur < thrs->temp - thrs->hysteresis)
+		new_state = NVKM_THERM_THRS_LOWER;
+	nvkm_therm_sensor_set_threshold_state(therm, thrs_name, new_state);
+
+	/* find the direction */
+	if (prev_state < new_state)
+		direction = NVKM_THERM_THRS_RISING;
+	else if (prev_state > new_state)
+		direction = NVKM_THERM_THRS_FALLING;
+	else
+		return;
+
+	/* advertise a change in direction */
+	nvkm_therm_sensor_event(therm, thrs_name, direction);
+}
+
+static void
+g84_therm_intr(struct nvkm_therm *therm)
+{
+	struct nvkm_subdev *subdev = &therm->subdev;
+	struct nvkm_device *device = subdev->device;
+	struct nvbios_therm_sensor *sensor = &therm->bios_sensor;
+	unsigned long flags;
+	uint32_t intr;
+
+	spin_lock_irqsave(&therm->sensor.alarm_program_lock, flags);
+
+	intr = nvkm_rd32(device, 0x20100) & 0x3ff;
+
+	/* THRS_4: downclock */
+	if (intr & 0x002) {
+		g84_therm_threshold_hyst_emulation(therm, 0x20414, 24,
+						   &sensor->thrs_down_clock,
+						   NVKM_THERM_THRS_DOWNCLOCK);
+		intr &= ~0x002;
+	}
+
+	/* shutdown */
+	if (intr & 0x004) {
+		g84_therm_threshold_hyst_emulation(therm, 0x20480, 20,
+						   &sensor->thrs_shutdown,
+						   NVKM_THERM_THRS_SHUTDOWN);
+		intr &= ~0x004;
+	}
+
+	/* THRS_1 : fan boost */
+	if (intr & 0x008) {
+		g84_therm_threshold_hyst_emulation(therm, 0x204c4, 21,
+						   &sensor->thrs_fan_boost,
+						   NVKM_THERM_THRS_FANBOOST);
+		intr &= ~0x008;
+	}
+
+	/* THRS_2 : critical */
+	if (intr & 0x010) {
+		g84_therm_threshold_hyst_emulation(therm, 0x204c0, 22,
+						   &sensor->thrs_critical,
+						   NVKM_THERM_THRS_CRITICAL);
+		intr &= ~0x010;
+	}
+
+	if (intr)
+		nvkm_error(subdev, "intr %08x\n", intr);
+
+	/* ACK everything */
+	nvkm_wr32(device, 0x20100, 0xffffffff);
+	nvkm_wr32(device, 0x1100, 0x10000); /* PBUS */
+
+	spin_unlock_irqrestore(&therm->sensor.alarm_program_lock, flags);
+}
+
+void
+g84_therm_fini(struct nvkm_therm *therm)
+{
+	struct nvkm_device *device = therm->subdev.device;
+
+	/* Disable PTherm IRQs */
+	nvkm_wr32(device, 0x20000, 0x00000000);
+
+	/* ACK all PTherm IRQs */
+	nvkm_wr32(device, 0x20100, 0xffffffff);
+	nvkm_wr32(device, 0x1100, 0x10000); /* PBUS */
+}
+
+void
+g84_therm_init(struct nvkm_therm *therm)
+{
+	g84_sensor_setup(therm);
+}
+
+static const struct nvkm_therm_func
+g84_therm = {
+	.init = g84_therm_init,
+	.fini = g84_therm_fini,
+	.intr = g84_therm_intr,
+	.pwm_ctrl = nv50_fan_pwm_ctrl,
+	.pwm_get = nv50_fan_pwm_get,
+	.pwm_set = nv50_fan_pwm_set,
+	.pwm_clock = nv50_fan_pwm_clock,
+	.temp_get = g84_temp_get,
+	.program_alarms = g84_therm_program_alarms,
+};
+
+int
+g84_therm_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+	      struct nvkm_therm **ptherm)
+{
+	struct nvkm_therm *therm;
+	int ret;
+
+	ret = nvkm_therm_new_(&g84_therm, device, type, inst, &therm);
+	*ptherm = therm;
+	if (ret)
+		return ret;
+
+	/* init the thresholds */
+	nvkm_therm_sensor_set_threshold_state(therm, NVKM_THERM_THRS_SHUTDOWN,
+						     NVKM_THERM_THRS_LOWER);
+	nvkm_therm_sensor_set_threshold_state(therm, NVKM_THERM_THRS_FANBOOST,
+						     NVKM_THERM_THRS_LOWER);
+	nvkm_therm_sensor_set_threshold_state(therm, NVKM_THERM_THRS_CRITICAL,
+						     NVKM_THERM_THRS_LOWER);
+	nvkm_therm_sensor_set_threshold_state(therm, NVKM_THERM_THRS_DOWNCLOCK,
+						     NVKM_THERM_THRS_LOWER);
+	return 0;
+}

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gf100.c

@@ -0,0 +1,58 @@
+/*
+ * Copyright 2018 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Lyude Paul
+ */
+#include <core/device.h>
+
+#include "priv.h"
+
+#define pack_for_each_init(init, pack, head)                          \
+	for (pack = head; pack && pack->init; pack++)                 \
+		  for (init = pack->init; init && init->count; init++)
+void
+gf100_clkgate_init(struct nvkm_therm *therm,
+		   const struct nvkm_therm_clkgate_pack *p)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	const struct nvkm_therm_clkgate_pack *pack;
+	const struct nvkm_therm_clkgate_init *init;
+	u32 next, addr;
+
+	pack_for_each_init(init, pack, p) {
+		next = init->addr + init->count * 8;
+		addr = init->addr;
+
+		nvkm_trace(&therm->subdev, "{ 0x%06x, %d, 0x%08x }\n",
+			   init->addr, init->count, init->data);
+		while (addr < next) {
+			nvkm_trace(&therm->subdev, "\t0x%06x = 0x%08x\n",
+				   addr, init->data);
+			nvkm_wr32(device, addr, init->data);
+			addr += 8;
+		}
+	}
+}
+
+/*
+ * TODO: Fermi clockgating isn't understood fully yet, so we don't specify any
+ * clockgate functions to use
+ */

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gf100.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2018 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Lyude Paul
+ */
+
+#ifndef __GF100_THERM_H__
+#define __GF100_THERM_H__
+
+#include <core/device.h>
+
+struct gf100_idle_filter {
+	u32 fecs;
+	u32 hubmmu;
+};
+
+#endif

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gf119.c

@@ -0,0 +1,154 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "priv.h"
+
+static int
+pwm_info(struct nvkm_therm *therm, int line)
+{
+	struct nvkm_subdev *subdev = &therm->subdev;
+	struct nvkm_device *device = subdev->device;
+	u32 gpio = nvkm_rd32(device, 0x00d610 + (line * 0x04));
+
+	switch (gpio & 0x000000c0) {
+	case 0x00000000: /* normal mode, possibly pwm forced off by us */
+	case 0x00000040: /* nvio special */
+		switch (gpio & 0x0000001f) {
+		case 0x00: return 2;
+		case 0x19: return 1;
+		case 0x1c: return 0;
+		case 0x1e: return 2;
+		default:
+			break;
+		}
+		break;
+	default:
+		break;
+	}
+
+	nvkm_error(subdev, "GPIO %d unknown PWM: %08x\n", line, gpio);
+	return -ENODEV;
+}
+
+int
+gf119_fan_pwm_ctrl(struct nvkm_therm *therm, int line, bool enable)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	u32 data = enable ? 0x00000040 : 0x00000000;
+	int indx = pwm_info(therm, line);
+	if (indx < 0)
+		return indx;
+	else if (indx < 2)
+		nvkm_mask(device, 0x00d610 + (line * 0x04), 0x000000c0, data);
+	/* nothing to do for indx == 2, it seems hardwired to PTHERM */
+	return 0;
+}
+
+int
+gf119_fan_pwm_get(struct nvkm_therm *therm, int line, u32 *divs, u32 *duty)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	int indx = pwm_info(therm, line);
+	if (indx < 0)
+		return indx;
+	else if (indx < 2) {
+		if (nvkm_rd32(device, 0x00d610 + (line * 0x04)) & 0x00000040) {
+			*divs = nvkm_rd32(device, 0x00e114 + (indx * 8));
+			*duty = nvkm_rd32(device, 0x00e118 + (indx * 8));
+			return 0;
+		}
+	} else if (indx == 2) {
+		*divs = nvkm_rd32(device, 0x0200d8) & 0x1fff;
+		*duty = nvkm_rd32(device, 0x0200dc) & 0x1fff;
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+int
+gf119_fan_pwm_set(struct nvkm_therm *therm, int line, u32 divs, u32 duty)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	int indx = pwm_info(therm, line);
+	if (indx < 0)
+		return indx;
+	else if (indx < 2) {
+		nvkm_wr32(device, 0x00e114 + (indx * 8), divs);
+		nvkm_wr32(device, 0x00e118 + (indx * 8), duty | 0x80000000);
+	} else if (indx == 2) {
+		nvkm_mask(device, 0x0200d8, 0x1fff, divs); /* keep the high bits */
+		nvkm_wr32(device, 0x0200dc, duty | 0x40000000);
+	}
+	return 0;
+}
+
+int
+gf119_fan_pwm_clock(struct nvkm_therm *therm, int line)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	int indx = pwm_info(therm, line);
+	if (indx < 0)
+		return 0;
+	else if (indx < 2)
+		return (device->crystal * 1000) / 20;
+	else
+		return device->crystal * 1000 / 10;
+}
+
+void
+gf119_therm_init(struct nvkm_therm *therm)
+{
+	struct nvkm_device *device = therm->subdev.device;
+
+	g84_sensor_setup(therm);
+
+	/* enable fan tach, count revolutions per-second */
+	nvkm_mask(device, 0x00e720, 0x00000003, 0x00000002);
+	if (therm->fan->tach.func != DCB_GPIO_UNUSED) {
+		nvkm_mask(device, 0x00d79c, 0x000000ff, therm->fan->tach.line);
+		nvkm_wr32(device, 0x00e724, device->crystal * 1000);
+		nvkm_mask(device, 0x00e720, 0x00000001, 0x00000001);
+	}
+	nvkm_mask(device, 0x00e720, 0x00000002, 0x00000000);
+}
+
+static const struct nvkm_therm_func
+gf119_therm = {
+	.init = gf119_therm_init,
+	.fini = g84_therm_fini,
+	.pwm_ctrl = gf119_fan_pwm_ctrl,
+	.pwm_get = gf119_fan_pwm_get,
+	.pwm_set = gf119_fan_pwm_set,
+	.pwm_clock = gf119_fan_pwm_clock,
+	.temp_get = g84_temp_get,
+	.fan_sense = gt215_therm_fan_sense,
+	.program_alarms = nvkm_therm_program_alarms_polling,
+};
+
+int
+gf119_therm_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+		struct nvkm_therm **ptherm)
+{
+	return nvkm_therm_new_(&gf119_therm, device, type, inst, ptherm);
+}

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gk104.c

@@ -0,0 +1,133 @@
+/*
+ * Copyright 2018 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Lyude Paul
+ */
+#include <core/device.h>
+
+#include "priv.h"
+#include "gk104.h"
+
+void
+gk104_clkgate_enable(struct nvkm_therm *base)
+{
+	struct gk104_therm *therm = gk104_therm(base);
+	struct nvkm_device *dev = therm->base.subdev.device;
+	const struct gk104_clkgate_engine_info *order = therm->clkgate_order;
+	int i;
+
+	/* Program ENG_MANT, ENG_FILTER */
+	for (i = 0; order[i].type != NVKM_SUBDEV_NR; i++) {
+		if (!nvkm_device_subdev(dev, order[i].type, order[i].inst))
+			continue;
+
+		nvkm_mask(dev, 0x20200 + order[i].offset, 0xff00, 0x4500);
+	}
+
+	/* magic */
+	nvkm_wr32(dev, 0x020288, therm->idle_filter->fecs);
+	nvkm_wr32(dev, 0x02028c, therm->idle_filter->hubmmu);
+
+	/* Enable clockgating (ENG_CLK = RUN->AUTO) */
+	for (i = 0; order[i].type != NVKM_SUBDEV_NR; i++) {
+		if (!nvkm_device_subdev(dev, order[i].type, order[i].inst))
+			continue;
+
+		nvkm_mask(dev, 0x20200 + order[i].offset, 0x00ff, 0x0045);
+	}
+}
+
+void
+gk104_clkgate_fini(struct nvkm_therm *base, bool suspend)
+{
+	struct gk104_therm *therm = gk104_therm(base);
+	struct nvkm_device *dev = therm->base.subdev.device;
+	const struct gk104_clkgate_engine_info *order = therm->clkgate_order;
+	int i;
+
+	/* ENG_CLK = AUTO->RUN, ENG_PWR = RUN->AUTO */
+	for (i = 0; order[i].type != NVKM_SUBDEV_NR; i++) {
+		if (!nvkm_device_subdev(dev, order[i].type, order[i].inst))
+			continue;
+
+		nvkm_mask(dev, 0x20200 + order[i].offset, 0xff, 0x54);
+	}
+}
+
+const struct gk104_clkgate_engine_info gk104_clkgate_engine_info[] = {
+	{ NVKM_ENGINE_GR,     0, 0x00 },
+	{ NVKM_ENGINE_MSPDEC, 0, 0x04 },
+	{ NVKM_ENGINE_MSPPP,  0, 0x08 },
+	{ NVKM_ENGINE_MSVLD,  0, 0x0c },
+	{ NVKM_ENGINE_CE,     0, 0x10 },
+	{ NVKM_ENGINE_CE,     1, 0x14 },
+	{ NVKM_ENGINE_MSENC,  0, 0x18 },
+	{ NVKM_ENGINE_CE,     2, 0x1c },
+	{ NVKM_SUBDEV_NR },
+};
+
+const struct gf100_idle_filter gk104_idle_filter = {
+	.fecs = 0x00001000,
+	.hubmmu = 0x00001000,
+};
+
+static const struct nvkm_therm_func
+gk104_therm_func = {
+	.init = gf119_therm_init,
+	.fini = g84_therm_fini,
+	.pwm_ctrl = gf119_fan_pwm_ctrl,
+	.pwm_get = gf119_fan_pwm_get,
+	.pwm_set = gf119_fan_pwm_set,
+	.pwm_clock = gf119_fan_pwm_clock,
+	.temp_get = g84_temp_get,
+	.fan_sense = gt215_therm_fan_sense,
+	.program_alarms = nvkm_therm_program_alarms_polling,
+	.clkgate_init = gf100_clkgate_init,
+	.clkgate_enable = gk104_clkgate_enable,
+	.clkgate_fini = gk104_clkgate_fini,
+};
+
+static int
+gk104_therm_new_(const struct nvkm_therm_func *func, struct nvkm_device *device,
+		 enum nvkm_subdev_type type, int inst,
+		 const struct gk104_clkgate_engine_info *clkgate_order,
+		 const struct gf100_idle_filter *idle_filter,
+		 struct nvkm_therm **ptherm)
+{
+	struct gk104_therm *therm = kzalloc_obj(*therm);
+
+	if (!therm)
+		return -ENOMEM;
+
+	nvkm_therm_ctor(&therm->base, device, type, inst, func);
+	*ptherm = &therm->base;
+	therm->clkgate_order = clkgate_order;
+	therm->idle_filter = idle_filter;
+	return 0;
+}
+
+int
+gk104_therm_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_therm **ptherm)
+{
+	return gk104_therm_new_(&gk104_therm_func, device, type, inst,
+				gk104_clkgate_engine_info, &gk104_idle_filter,
+				ptherm);
+}

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gk104.h

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2018 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Lyude Paul
+ */
+
+#ifndef __GK104_THERM_H__
+#define __GK104_THERM_H__
+#define gk104_therm(p) (container_of((p), struct gk104_therm, base))
+
+#include <subdev/therm.h>
+#include "priv.h"
+#include "gf100.h"
+
+struct gk104_clkgate_engine_info {
+	enum nvkm_subdev_type type;
+	int inst;
+	u8 offset;
+};
+
+struct gk104_therm {
+	struct nvkm_therm base;
+
+	const struct gk104_clkgate_engine_info *clkgate_order;
+	const struct gf100_idle_filter *idle_filter;
+};
+
+extern const struct gk104_clkgate_engine_info gk104_clkgate_engine_info[];
+extern const struct gf100_idle_filter gk104_idle_filter;
+
+#endif

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gm107.c

@@ -0,0 +1,75 @@
+/*
+ * Copyright 2014 Martin Peres
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Martin Peres
+ */
+#include "priv.h"
+
+static int
+gm107_fan_pwm_ctrl(struct nvkm_therm *therm, int line, bool enable)
+{
+	/* nothing to do, it seems hardwired */
+	return 0;
+}
+
+static int
+gm107_fan_pwm_get(struct nvkm_therm *therm, int line, u32 *divs, u32 *duty)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	*divs = nvkm_rd32(device, 0x10eb20) & 0x1fff;
+	*duty = nvkm_rd32(device, 0x10eb24) & 0x1fff;
+	return 0;
+}
+
+static int
+gm107_fan_pwm_set(struct nvkm_therm *therm, int line, u32 divs, u32 duty)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	nvkm_mask(device, 0x10eb10, 0x1fff, divs); /* keep the high bits */
+	nvkm_wr32(device, 0x10eb14, duty | 0x80000000);
+	return 0;
+}
+
+static int
+gm107_fan_pwm_clock(struct nvkm_therm *therm, int line)
+{
+	return therm->subdev.device->crystal * 1000;
+}
+
+static const struct nvkm_therm_func
+gm107_therm = {
+	.init = gf119_therm_init,
+	.fini = g84_therm_fini,
+	.pwm_ctrl = gm107_fan_pwm_ctrl,
+	.pwm_get = gm107_fan_pwm_get,
+	.pwm_set = gm107_fan_pwm_set,
+	.pwm_clock = gm107_fan_pwm_clock,
+	.temp_get = g84_temp_get,
+	.fan_sense = gt215_therm_fan_sense,
+	.program_alarms = nvkm_therm_program_alarms_polling,
+};
+
+int
+gm107_therm_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+		struct nvkm_therm **ptherm)
+{
+	return nvkm_therm_new_(&gm107_therm, device, type, inst, ptherm);
+}

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gm200.c

@@ -0,0 +1,39 @@
+/*
+ * Copyright 2017 Karol Herbst
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Karol Herbst
+ */
+#include "priv.h"
+
+static const struct nvkm_therm_func
+gm200_therm = {
+	.init = g84_therm_init,
+	.fini = g84_therm_fini,
+	.temp_get = g84_temp_get,
+	.program_alarms = nvkm_therm_program_alarms_polling,
+};
+
+int
+gm200_therm_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+		struct nvkm_therm **ptherm)
+{
+	return nvkm_therm_new_(&gm200_therm, device, type, inst, ptherm);
+}

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gp100.c

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2017 Rhys Kidd
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Rhys Kidd
+ */
+#include "priv.h"
+
+#include <subdev/gsp.h>
+
+static int
+gp100_temp_get(struct nvkm_therm *therm)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	struct nvkm_subdev *subdev = &therm->subdev;
+	u32 tsensor = nvkm_rd32(device, 0x020460);
+	u32 inttemp = (tsensor & 0x0001fff8);
+
+	/* device SHADOWed */
+	if (tsensor & 0x40000000)
+		nvkm_trace(subdev, "reading temperature from SHADOWed sensor\n");
+
+	/* device valid */
+	if (tsensor & 0x20000000)
+		return (inttemp >> 8);
+	else
+		return -ENODEV;
+}
+
+static const struct nvkm_therm_func
+gp100_therm = {
+	.temp_get = gp100_temp_get,
+	.program_alarms = nvkm_therm_program_alarms_polling,
+};
+
+int
+gp100_therm_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+		struct nvkm_therm **ptherm)
+{
+	if (nvkm_gsp_rm(device->gsp))
+		return -ENODEV;
+
+	return nvkm_therm_new_(&gp100_therm, device, type, inst, ptherm);
+}

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gt215.c

@@ -0,0 +1,75 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "priv.h"
+
+#include <subdev/gpio.h>
+
+int
+gt215_therm_fan_sense(struct nvkm_therm *therm)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	u32 tach = nvkm_rd32(device, 0x00e728) & 0x0000ffff;
+	u32 ctrl = nvkm_rd32(device, 0x00e720);
+	if (ctrl & 0x00000001)
+		return tach * 60 / 2;
+	return -ENODEV;
+}
+
+static void
+gt215_therm_init(struct nvkm_therm *therm)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	struct dcb_gpio_func *tach = &therm->fan->tach;
+
+	g84_sensor_setup(therm);
+
+	/* enable fan tach, count revolutions per-second */
+	nvkm_mask(device, 0x00e720, 0x00000003, 0x00000002);
+	if (tach->func != DCB_GPIO_UNUSED) {
+		nvkm_wr32(device, 0x00e724, device->crystal * 1000);
+		nvkm_mask(device, 0x00e720, 0x001f0000, tach->line << 16);
+		nvkm_mask(device, 0x00e720, 0x00000001, 0x00000001);
+	}
+	nvkm_mask(device, 0x00e720, 0x00000002, 0x00000000);
+}
+
+static const struct nvkm_therm_func
+gt215_therm = {
+	.init = gt215_therm_init,
+	.fini = g84_therm_fini,
+	.pwm_ctrl = nv50_fan_pwm_ctrl,
+	.pwm_get = nv50_fan_pwm_get,
+	.pwm_set = nv50_fan_pwm_set,
+	.pwm_clock = nv50_fan_pwm_clock,
+	.temp_get = g84_temp_get,
+	.fan_sense = gt215_therm_fan_sense,
+	.program_alarms = nvkm_therm_program_alarms_polling,
+};
+
+int
+gt215_therm_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+		struct nvkm_therm **ptherm)
+{
+	return nvkm_therm_new_(&gt215_therm, device, type, inst, ptherm);
+}

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/therm/ic.c

@@ -0,0 +1,127 @@
+/*
+ * Copyright 2012 Nouveau community
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Martin Peres
+ */
+#include "priv.h"
+
+#include <subdev/bios/extdev.h>
+#include <subdev/i2c.h>
+
+static bool
+probe_monitoring_device(struct nvkm_i2c_bus *bus,
+			struct i2c_board_info *info, void *data)
+{
+	struct nvkm_therm *therm = data;
+	struct nvbios_therm_sensor *sensor = &therm->bios_sensor;
+	struct i2c_client *client;
+
+	request_module("%s%s", I2C_MODULE_PREFIX, info->type);
+
+	client = i2c_new_client_device(&bus->i2c, info);
+	if (IS_ERR(client))
+		return false;
+
+	if (!client->dev.driver ||
+	    to_i2c_driver(client->dev.driver)->detect(client, info)) {
+		i2c_unregister_device(client);
+		return false;
+	}
+
+	nvkm_debug(&therm->subdev,
+		   "Found an %s at address 0x%x (controlled by lm_sensors, "
+		   "temp offset %+i C)\n",
+		   info->type, info->addr, sensor->offset_constant);
+	therm->ic = client;
+	return true;
+}
+
+static struct nvkm_i2c_bus_probe
+nv_board_infos[] = {
+	{ { I2C_BOARD_INFO("w83l785ts", 0x2d) }, 0 },
+	{ { I2C_BOARD_INFO("w83781d", 0x2d) }, 0  },
+	{ { I2C_BOARD_INFO("adt7473", 0x2e) }, 40  },
+	{ { I2C_BOARD_INFO("adt7473", 0x2d) }, 40  },
+	{ { I2C_BOARD_INFO("adt7473", 0x2c) }, 40  },
+	{ { I2C_BOARD_INFO("f75375", 0x2e) }, 0  },
+	{ { I2C_BOARD_INFO("lm99", 0x4c) }, 0  },
+	{ { I2C_BOARD_INFO("lm90", 0x4c) }, 0  },
+	{ { I2C_BOARD_INFO("lm90", 0x4d) }, 0  },
+	{ { I2C_BOARD_INFO("adm1021", 0x18) }, 0  },
+	{ { I2C_BOARD_INFO("adm1021", 0x19) }, 0  },
+	{ { I2C_BOARD_INFO("adm1021", 0x1a) }, 0  },
+	{ { I2C_BOARD_INFO("adm1021", 0x29) }, 0  },
+	{ { I2C_BOARD_INFO("adm1021", 0x2a) }, 0  },
+	{ { I2C_BOARD_INFO("adm1021", 0x2b) }, 0  },
+	{ { I2C_BOARD_INFO("adm1021", 0x4c) }, 0  },
+	{ { I2C_BOARD_INFO("adm1021", 0x4d) }, 0  },
+	{ { I2C_BOARD_INFO("adm1021", 0x4e) }, 0  },
+	{ { I2C_BOARD_INFO("lm63", 0x18) }, 0  },
+	{ { I2C_BOARD_INFO("lm63", 0x4e) }, 0  },
+	{ }
+};
+
+void
+nvkm_therm_ic_ctor(struct nvkm_therm *therm)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	struct nvkm_bios *bios = device->bios;
+	struct nvkm_i2c *i2c = device->i2c;
+	struct nvkm_i2c_bus *bus;
+	struct nvbios_extdev_func extdev_entry;
+
+	bus = nvkm_i2c_bus_find(i2c, NVKM_I2C_BUS_PRI);
+	if (!bus)
+		return;
+
+	if (!nvbios_extdev_find(bios, NVBIOS_EXTDEV_LM89, &extdev_entry)) {
+		struct nvkm_i2c_bus_probe board[] = {
+		  { { I2C_BOARD_INFO("lm90", extdev_entry.addr >> 1) }, 0},
+		  { }
+		};
+
+		nvkm_i2c_bus_probe(bus, "monitoring device", board,
+				   probe_monitoring_device, therm);
+		if (therm->ic)
+			return;
+	}
+
+	if (!nvbios_extdev_find(bios, NVBIOS_EXTDEV_ADT7473, &extdev_entry)) {
+		struct nvkm_i2c_bus_probe board[] = {
+		  { { I2C_BOARD_INFO("adt7473", extdev_entry.addr >> 1) }, 20 },
+		  { }
+		};
+
+		nvkm_i2c_bus_probe(bus, "monitoring device", board,
+				   probe_monitoring_device, therm);
+		if (therm->ic)
+			return;
+	}
+
+	if (nvbios_extdev_skip_probe(bios))
+		return;
+
+	/* The vbios doesn't provide the address of an exisiting monitoring
+	   device. Let's try our static list.
+	 */
+	nvkm_i2c_bus_probe(bus, "monitoring device", nv_board_infos,
+			   probe_monitoring_device, therm);
+}

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/therm/nv40.c

@@ -0,0 +1,204 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ * 	    Martin Peres
+ */
+#include "priv.h"
+
+enum nv40_sensor_style { INVALID_STYLE = -1, OLD_STYLE = 0, NEW_STYLE = 1 };
+
+static enum nv40_sensor_style
+nv40_sensor_style(struct nvkm_therm *therm)
+{
+	switch (therm->subdev.device->chipset) {
+	case 0x43:
+	case 0x44:
+	case 0x4a:
+	case 0x47:
+		return OLD_STYLE;
+	case 0x46:
+	case 0x49:
+	case 0x4b:
+	case 0x4e:
+	case 0x4c:
+	case 0x67:
+	case 0x68:
+	case 0x63:
+		return NEW_STYLE;
+	default:
+		return INVALID_STYLE;
+	}
+}
+
+static int
+nv40_sensor_setup(struct nvkm_therm *therm)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	enum nv40_sensor_style style = nv40_sensor_style(therm);
+
+	/* enable ADC readout and disable the ALARM threshold */
+	if (style == NEW_STYLE) {
+		nvkm_mask(device, 0x15b8, 0x80000000, 0);
+		nvkm_wr32(device, 0x15b0, 0x80003fff);
+		mdelay(20); /* wait for the temperature to stabilize */
+		return nvkm_rd32(device, 0x15b4) & 0x3fff;
+	} else if (style == OLD_STYLE) {
+		nvkm_wr32(device, 0x15b0, 0xff);
+		mdelay(20); /* wait for the temperature to stabilize */
+		return nvkm_rd32(device, 0x15b4) & 0xff;
+	} else
+		return -ENODEV;
+}
+
+static int
+nv40_temp_get(struct nvkm_therm *therm)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	struct nvbios_therm_sensor *sensor = &therm->bios_sensor;
+	enum nv40_sensor_style style = nv40_sensor_style(therm);
+	int core_temp;
+
+	if (style == NEW_STYLE) {
+		nvkm_wr32(device, 0x15b0, 0x80003fff);
+		core_temp = nvkm_rd32(device, 0x15b4) & 0x3fff;
+	} else if (style == OLD_STYLE) {
+		nvkm_wr32(device, 0x15b0, 0xff);
+		core_temp = nvkm_rd32(device, 0x15b4) & 0xff;
+	} else
+		return -ENODEV;
+
+	/* if the slope or the offset is unset, do no use the sensor */
+	if (!sensor->slope_div || !sensor->slope_mult ||
+	    !sensor->offset_num || !sensor->offset_den)
+	    return -ENODEV;
+
+	core_temp = core_temp * sensor->slope_mult / sensor->slope_div;
+	core_temp = core_temp + sensor->offset_num / sensor->offset_den;
+	core_temp = core_temp + sensor->offset_constant - 8;
+
+	/* reserve negative temperatures for errors */
+	if (core_temp < 0)
+		core_temp = 0;
+
+	return core_temp;
+}
+
+static int
+nv40_fan_pwm_ctrl(struct nvkm_therm *therm, int line, bool enable)
+{
+	struct nvkm_subdev *subdev = &therm->subdev;
+	struct nvkm_device *device = subdev->device;
+	u32 mask = enable ? 0x80000000 : 0x00000000;
+	if      (line == 2) nvkm_mask(device, 0x0010f0, 0x80000000, mask);
+	else if (line == 9) nvkm_mask(device, 0x0015f4, 0x80000000, mask);
+	else {
+		nvkm_error(subdev, "unknown pwm ctrl for gpio %d\n", line);
+		return -ENODEV;
+	}
+	return 0;
+}
+
+static int
+nv40_fan_pwm_get(struct nvkm_therm *therm, int line, u32 *divs, u32 *duty)
+{
+	struct nvkm_subdev *subdev = &therm->subdev;
+	struct nvkm_device *device = subdev->device;
+	if (line == 2) {
+		u32 reg = nvkm_rd32(device, 0x0010f0);
+		if (reg & 0x80000000) {
+			*duty = (reg & 0x7fff0000) >> 16;
+			*divs = (reg & 0x00007fff);
+			return 0;
+		}
+	} else
+	if (line == 9) {
+		u32 reg = nvkm_rd32(device, 0x0015f4);
+		if (reg & 0x80000000) {
+			*divs = nvkm_rd32(device, 0x0015f8);
+			*duty = (reg & 0x7fffffff);
+			return 0;
+		}
+	} else {
+		nvkm_error(subdev, "unknown pwm ctrl for gpio %d\n", line);
+		return -ENODEV;
+	}
+
+	return -EINVAL;
+}
+
+static int
+nv40_fan_pwm_set(struct nvkm_therm *therm, int line, u32 divs, u32 duty)
+{
+	struct nvkm_subdev *subdev = &therm->subdev;
+	struct nvkm_device *device = subdev->device;
+	if (line == 2) {
+		nvkm_mask(device, 0x0010f0, 0x7fff7fff, (duty << 16) | divs);
+	} else
+	if (line == 9) {
+		nvkm_wr32(device, 0x0015f8, divs);
+		nvkm_mask(device, 0x0015f4, 0x7fffffff, duty);
+	} else {
+		nvkm_error(subdev, "unknown pwm ctrl for gpio %d\n", line);
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+void
+nv40_therm_intr(struct nvkm_therm *therm)
+{
+	struct nvkm_subdev *subdev = &therm->subdev;
+	struct nvkm_device *device = subdev->device;
+	uint32_t stat = nvkm_rd32(device, 0x1100);
+
+	/* traitement */
+
+	/* ack all IRQs */
+	nvkm_wr32(device, 0x1100, 0x70000);
+
+	nvkm_error(subdev, "THERM received an IRQ: stat = %x\n", stat);
+}
+
+static void
+nv40_therm_init(struct nvkm_therm *therm)
+{
+	nv40_sensor_setup(therm);
+}
+
+static const struct nvkm_therm_func
+nv40_therm = {
+	.init = nv40_therm_init,
+	.intr = nv40_therm_intr,
+	.pwm_ctrl = nv40_fan_pwm_ctrl,
+	.pwm_get = nv40_fan_pwm_get,
+	.pwm_set = nv40_fan_pwm_set,
+	.temp_get = nv40_temp_get,
+	.program_alarms = nvkm_therm_program_alarms_polling,
+};
+
+int
+nv40_therm_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+	       struct nvkm_therm **ptherm)
+{
+	return nvkm_therm_new_(&nv40_therm, device, type, inst, ptherm);
+}

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/therm/nv50.c

@@ -0,0 +1,176 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ * 	    Martin Peres
+ */
+#include "priv.h"
+
+static int
+pwm_info(struct nvkm_therm *therm, int *line, int *ctrl, int *indx)
+{
+	struct nvkm_subdev *subdev = &therm->subdev;
+
+	if (*line == 0x04) {
+		*ctrl = 0x00e100;
+		*line = 4;
+		*indx = 0;
+	} else
+	if (*line == 0x09) {
+		*ctrl = 0x00e100;
+		*line = 9;
+		*indx = 1;
+	} else
+	if (*line == 0x10) {
+		*ctrl = 0x00e28c;
+		*line = 0;
+		*indx = 0;
+	} else {
+		nvkm_error(subdev, "unknown pwm ctrl for gpio %d\n", *line);
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+int
+nv50_fan_pwm_ctrl(struct nvkm_therm *therm, int line, bool enable)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	u32 data = enable ? 0x00000001 : 0x00000000;
+	int ctrl, id, ret = pwm_info(therm, &line, &ctrl, &id);
+	if (ret == 0)
+		nvkm_mask(device, ctrl, 0x00010001 << line, data << line);
+	return ret;
+}
+
+int
+nv50_fan_pwm_get(struct nvkm_therm *therm, int line, u32 *divs, u32 *duty)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	int ctrl, id, ret = pwm_info(therm, &line, &ctrl, &id);
+	if (ret)
+		return ret;
+
+	if (nvkm_rd32(device, ctrl) & (1 << line)) {
+		*divs = nvkm_rd32(device, 0x00e114 + (id * 8));
+		*duty = nvkm_rd32(device, 0x00e118 + (id * 8));
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+int
+nv50_fan_pwm_set(struct nvkm_therm *therm, int line, u32 divs, u32 duty)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	int ctrl, id, ret = pwm_info(therm, &line, &ctrl, &id);
+	if (ret)
+		return ret;
+
+	nvkm_wr32(device, 0x00e114 + (id * 8), divs);
+	nvkm_wr32(device, 0x00e118 + (id * 8), duty | 0x80000000);
+	return 0;
+}
+
+int
+nv50_fan_pwm_clock(struct nvkm_therm *therm, int line)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	int pwm_clock;
+
+	/* determine the PWM source clock */
+	if (device->chipset > 0x50 && device->chipset < 0x94) {
+		u8 pwm_div = nvkm_rd32(device, 0x410c);
+		if (nvkm_rd32(device, 0xc040) & 0x800000) {
+			/* Use the HOST clock (100 MHz)
+			* Where does this constant(2.4) comes from? */
+			pwm_clock = (100000000 >> pwm_div) * 10 / 24;
+		} else {
+			/* Where does this constant(20) comes from? */
+			pwm_clock = (device->crystal * 1000) >> pwm_div;
+			pwm_clock /= 20;
+		}
+	} else {
+		pwm_clock = (device->crystal * 1000) / 20;
+	}
+
+	return pwm_clock;
+}
+
+static void
+nv50_sensor_setup(struct nvkm_therm *therm)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	nvkm_mask(device, 0x20010, 0x40000000, 0x0);
+	mdelay(20); /* wait for the temperature to stabilize */
+}
+
+static int
+nv50_temp_get(struct nvkm_therm *therm)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	struct nvbios_therm_sensor *sensor = &therm->bios_sensor;
+	int core_temp;
+
+	core_temp = nvkm_rd32(device, 0x20014) & 0x3fff;
+
+	/* if the slope or the offset is unset, do no use the sensor */
+	if (!sensor->slope_div || !sensor->slope_mult ||
+	    !sensor->offset_num || !sensor->offset_den)
+	    return -ENODEV;
+
+	core_temp = core_temp * sensor->slope_mult / sensor->slope_div;
+	core_temp = core_temp + sensor->offset_num / sensor->offset_den;
+	core_temp = core_temp + sensor->offset_constant - 8;
+
+	/* reserve negative temperatures for errors */
+	if (core_temp < 0)
+		core_temp = 0;
+
+	return core_temp;
+}
+
+static void
+nv50_therm_init(struct nvkm_therm *therm)
+{
+	nv50_sensor_setup(therm);
+}
+
+static const struct nvkm_therm_func
+nv50_therm = {
+	.init = nv50_therm_init,
+	.intr = nv40_therm_intr,
+	.pwm_ctrl = nv50_fan_pwm_ctrl,
+	.pwm_get = nv50_fan_pwm_get,
+	.pwm_set = nv50_fan_pwm_set,
+	.pwm_clock = nv50_fan_pwm_clock,
+	.temp_get = nv50_temp_get,
+	.program_alarms = nvkm_therm_program_alarms_polling,
+};
+
+int
+nv50_therm_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+	       struct nvkm_therm **ptherm)
+{
+	return nvkm_therm_new_(&nv50_therm, device, type, inst, ptherm);
+}

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/therm/priv.h

@@ -0,0 +1,137 @@
+#ifndef __NVTHERM_PRIV_H__
+#define __NVTHERM_PRIV_H__
+#define nvkm_therm(p) container_of((p), struct nvkm_therm, subdev)
+/*
+ * Copyright 2012 The Nouveau community
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Martin Peres
+ */
+#include <subdev/therm.h>
+#include <subdev/bios.h>
+#include <subdev/bios/extdev.h>
+#include <subdev/bios/gpio.h>
+#include <subdev/bios/perf.h>
+
+int nvkm_therm_new_(const struct nvkm_therm_func *, struct nvkm_device *, enum nvkm_subdev_type,
+		    int, struct nvkm_therm **);
+void nvkm_therm_ctor(struct nvkm_therm *, struct nvkm_device *, enum nvkm_subdev_type, int,
+		     const struct nvkm_therm_func *);
+
+struct nvkm_fan {
+	struct nvkm_therm *parent;
+	const char *type;
+
+	struct nvbios_therm_fan bios;
+	struct nvbios_perf_fan perf;
+
+	struct nvkm_alarm alarm;
+	spinlock_t lock;
+	int percent;
+
+	int (*get)(struct nvkm_therm *);
+	int (*set)(struct nvkm_therm *, int percent);
+
+	struct dcb_gpio_func tach;
+};
+
+int nvkm_therm_fan_mode(struct nvkm_therm *, int mode);
+int nvkm_therm_attr_get(struct nvkm_therm *, enum nvkm_therm_attr_type);
+int nvkm_therm_attr_set(struct nvkm_therm *, enum nvkm_therm_attr_type, int);
+
+void nvkm_therm_ic_ctor(struct nvkm_therm *);
+
+int nvkm_therm_sensor_ctor(struct nvkm_therm *);
+
+int nvkm_therm_fan_ctor(struct nvkm_therm *);
+int nvkm_therm_fan_init(struct nvkm_therm *);
+int nvkm_therm_fan_fini(struct nvkm_therm *, bool suspend);
+int nvkm_therm_fan_get(struct nvkm_therm *);
+int nvkm_therm_fan_set(struct nvkm_therm *, bool now, int percent);
+int nvkm_therm_fan_user_get(struct nvkm_therm *);
+int nvkm_therm_fan_user_set(struct nvkm_therm *, int percent);
+
+int  nvkm_therm_sensor_init(struct nvkm_therm *);
+int  nvkm_therm_sensor_fini(struct nvkm_therm *, bool suspend);
+void nvkm_therm_sensor_preinit(struct nvkm_therm *);
+void nvkm_therm_sensor_set_threshold_state(struct nvkm_therm *,
+					   enum nvkm_therm_thrs,
+					   enum nvkm_therm_thrs_state);
+enum nvkm_therm_thrs_state
+nvkm_therm_sensor_get_threshold_state(struct nvkm_therm *,
+				      enum nvkm_therm_thrs);
+void nvkm_therm_sensor_event(struct nvkm_therm *, enum nvkm_therm_thrs,
+			     enum nvkm_therm_thrs_direction);
+void nvkm_therm_program_alarms_polling(struct nvkm_therm *);
+
+struct nvkm_therm_func {
+	void (*init)(struct nvkm_therm *);
+	void (*fini)(struct nvkm_therm *);
+	void (*intr)(struct nvkm_therm *);
+
+	int (*pwm_ctrl)(struct nvkm_therm *, int line, bool);
+	int (*pwm_get)(struct nvkm_therm *, int line, u32 *, u32 *);
+	int (*pwm_set)(struct nvkm_therm *, int line, u32, u32);
+	int (*pwm_clock)(struct nvkm_therm *, int line);
+
+	int (*temp_get)(struct nvkm_therm *);
+
+	int (*fan_sense)(struct nvkm_therm *);
+
+	void (*program_alarms)(struct nvkm_therm *);
+
+	void (*clkgate_init)(struct nvkm_therm *,
+			     const struct nvkm_therm_clkgate_pack *);
+	void (*clkgate_enable)(struct nvkm_therm *);
+	void (*clkgate_fini)(struct nvkm_therm *, bool);
+};
+
+void nv40_therm_intr(struct nvkm_therm *);
+
+int  nv50_fan_pwm_ctrl(struct nvkm_therm *, int, bool);
+int  nv50_fan_pwm_get(struct nvkm_therm *, int, u32 *, u32 *);
+int  nv50_fan_pwm_set(struct nvkm_therm *, int, u32, u32);
+int  nv50_fan_pwm_clock(struct nvkm_therm *, int);
+
+int  g84_temp_get(struct nvkm_therm *);
+void g84_sensor_setup(struct nvkm_therm *);
+void g84_therm_fini(struct nvkm_therm *);
+
+int gt215_therm_fan_sense(struct nvkm_therm *);
+
+void gf100_clkgate_init(struct nvkm_therm *,
+			const struct nvkm_therm_clkgate_pack *);
+
+void g84_therm_init(struct nvkm_therm *);
+
+int gf119_fan_pwm_ctrl(struct nvkm_therm *, int, bool);
+int gf119_fan_pwm_get(struct nvkm_therm *, int, u32 *, u32 *);
+int gf119_fan_pwm_set(struct nvkm_therm *, int, u32, u32);
+int gf119_fan_pwm_clock(struct nvkm_therm *, int);
+void gf119_therm_init(struct nvkm_therm *);
+
+void gk104_therm_init(struct nvkm_therm *);
+void gk104_clkgate_enable(struct nvkm_therm *);
+void gk104_clkgate_fini(struct nvkm_therm *, bool);
+
+int nvkm_fanpwm_create(struct nvkm_therm *, struct dcb_gpio_func *);
+int nvkm_fantog_create(struct nvkm_therm *, struct dcb_gpio_func *);
+int nvkm_fannil_create(struct nvkm_therm *);
+#endif

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/subdev/therm/temp.c

@@ -0,0 +1,253 @@
+/*
+ * Copyright 2012 The Nouveau community
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Martin Peres
+ */
+#include "priv.h"
+
+static void
+nvkm_therm_temp_set_defaults(struct nvkm_therm *therm)
+{
+	therm->bios_sensor.offset_constant = 0;
+
+	therm->bios_sensor.thrs_fan_boost.temp = 90;
+	therm->bios_sensor.thrs_fan_boost.hysteresis = 3;
+
+	therm->bios_sensor.thrs_down_clock.temp = 95;
+	therm->bios_sensor.thrs_down_clock.hysteresis = 3;
+
+	therm->bios_sensor.thrs_critical.temp = 105;
+	therm->bios_sensor.thrs_critical.hysteresis = 5;
+
+	therm->bios_sensor.thrs_shutdown.temp = 135;
+	therm->bios_sensor.thrs_shutdown.hysteresis = 5; /*not that it matters */
+}
+
+static void
+nvkm_therm_temp_safety_checks(struct nvkm_therm *therm)
+{
+	struct nvbios_therm_sensor *s = &therm->bios_sensor;
+
+	/* enforce a minimum hysteresis on thresholds */
+	s->thrs_fan_boost.hysteresis = max_t(u8, s->thrs_fan_boost.hysteresis, 2);
+	s->thrs_down_clock.hysteresis = max_t(u8, s->thrs_down_clock.hysteresis, 2);
+	s->thrs_critical.hysteresis = max_t(u8, s->thrs_critical.hysteresis, 2);
+	s->thrs_shutdown.hysteresis = max_t(u8, s->thrs_shutdown.hysteresis, 2);
+}
+
+/* must be called with alarm_program_lock taken ! */
+void
+nvkm_therm_sensor_set_threshold_state(struct nvkm_therm *therm,
+				      enum nvkm_therm_thrs thrs,
+				      enum nvkm_therm_thrs_state st)
+{
+	therm->sensor.alarm_state[thrs] = st;
+}
+
+/* must be called with alarm_program_lock taken ! */
+enum nvkm_therm_thrs_state
+nvkm_therm_sensor_get_threshold_state(struct nvkm_therm *therm,
+				      enum nvkm_therm_thrs thrs)
+{
+	return therm->sensor.alarm_state[thrs];
+}
+
+static void
+nv_poweroff_work(struct work_struct *work)
+{
+	orderly_poweroff(true);
+	kfree(work);
+}
+
+void
+nvkm_therm_sensor_event(struct nvkm_therm *therm, enum nvkm_therm_thrs thrs,
+			enum nvkm_therm_thrs_direction dir)
+{
+	struct nvkm_subdev *subdev = &therm->subdev;
+	bool active;
+	static const char * const thresholds[] = {
+		"fanboost", "downclock", "critical", "shutdown"
+	};
+	int temperature = therm->func->temp_get(therm);
+
+	if (thrs < 0 || thrs > 3)
+		return;
+
+	if (dir == NVKM_THERM_THRS_FALLING)
+		nvkm_info(subdev,
+			  "temperature (%i C) went below the '%s' threshold\n",
+			  temperature, thresholds[thrs]);
+	else
+		nvkm_info(subdev, "temperature (%i C) hit the '%s' threshold\n",
+			  temperature, thresholds[thrs]);
+
+	active = (dir == NVKM_THERM_THRS_RISING);
+	switch (thrs) {
+	case NVKM_THERM_THRS_FANBOOST:
+		if (active) {
+			nvkm_therm_fan_set(therm, true, 100);
+			nvkm_therm_fan_mode(therm, NVKM_THERM_CTRL_AUTO);
+		}
+		break;
+	case NVKM_THERM_THRS_DOWNCLOCK:
+		if (therm->emergency.downclock)
+			therm->emergency.downclock(therm, active);
+		break;
+	case NVKM_THERM_THRS_CRITICAL:
+		if (therm->emergency.pause)
+			therm->emergency.pause(therm, active);
+		break;
+	case NVKM_THERM_THRS_SHUTDOWN:
+		if (active) {
+			struct work_struct *work;
+
+			work = kmalloc_obj(*work, GFP_ATOMIC);
+			if (work) {
+				INIT_WORK(work, nv_poweroff_work);
+				schedule_work(work);
+			}
+		}
+		break;
+	case NVKM_THERM_THRS_NR:
+		break;
+	}
+
+}
+
+/* must be called with alarm_program_lock taken ! */
+static void
+nvkm_therm_threshold_hyst_polling(struct nvkm_therm *therm,
+				  const struct nvbios_therm_threshold *thrs,
+				  enum nvkm_therm_thrs thrs_name)
+{
+	enum nvkm_therm_thrs_direction direction;
+	enum nvkm_therm_thrs_state prev_state, new_state;
+	int temp = therm->func->temp_get(therm);
+
+	prev_state = nvkm_therm_sensor_get_threshold_state(therm, thrs_name);
+
+	if (temp >= thrs->temp && prev_state == NVKM_THERM_THRS_LOWER) {
+		direction = NVKM_THERM_THRS_RISING;
+		new_state = NVKM_THERM_THRS_HIGHER;
+	} else if (temp <= thrs->temp - thrs->hysteresis &&
+			prev_state == NVKM_THERM_THRS_HIGHER) {
+		direction = NVKM_THERM_THRS_FALLING;
+		new_state = NVKM_THERM_THRS_LOWER;
+	} else
+		return; /* nothing to do */
+
+	nvkm_therm_sensor_set_threshold_state(therm, thrs_name, new_state);
+	nvkm_therm_sensor_event(therm, thrs_name, direction);
+}
+
+static void
+alarm_timer_callback(struct nvkm_alarm *alarm)
+{
+	struct nvkm_therm *therm =
+		container_of(alarm, struct nvkm_therm, sensor.therm_poll_alarm);
+	struct nvbios_therm_sensor *sensor = &therm->bios_sensor;
+	struct nvkm_timer *tmr = therm->subdev.device->timer;
+	unsigned long flags;
+
+	spin_lock_irqsave(&therm->sensor.alarm_program_lock, flags);
+
+	nvkm_therm_threshold_hyst_polling(therm, &sensor->thrs_fan_boost,
+					  NVKM_THERM_THRS_FANBOOST);
+
+	nvkm_therm_threshold_hyst_polling(therm,
+					  &sensor->thrs_down_clock,
+					  NVKM_THERM_THRS_DOWNCLOCK);
+
+	nvkm_therm_threshold_hyst_polling(therm, &sensor->thrs_critical,
+					  NVKM_THERM_THRS_CRITICAL);
+
+	nvkm_therm_threshold_hyst_polling(therm, &sensor->thrs_shutdown,
+					  NVKM_THERM_THRS_SHUTDOWN);
+
+	spin_unlock_irqrestore(&therm->sensor.alarm_program_lock, flags);
+
+	/* schedule the next poll in one second */
+	if (therm->func->temp_get(therm) >= 0)
+		nvkm_timer_alarm(tmr, 1000000000ULL, alarm);
+}
+
+void
+nvkm_therm_program_alarms_polling(struct nvkm_therm *therm)
+{
+	struct nvbios_therm_sensor *sensor = &therm->bios_sensor;
+
+	nvkm_debug(&therm->subdev,
+		   "programmed thresholds [ %d(%d), %d(%d), %d(%d), %d(%d) ]\n",
+		   sensor->thrs_fan_boost.temp,
+		   sensor->thrs_fan_boost.hysteresis,
+		   sensor->thrs_down_clock.temp,
+		   sensor->thrs_down_clock.hysteresis,
+		   sensor->thrs_critical.temp,
+		   sensor->thrs_critical.hysteresis,
+		   sensor->thrs_shutdown.temp,
+		   sensor->thrs_shutdown.hysteresis);
+
+	alarm_timer_callback(&therm->sensor.therm_poll_alarm);
+}
+
+int
+nvkm_therm_sensor_init(struct nvkm_therm *therm)
+{
+	therm->func->program_alarms(therm);
+	return 0;
+}
+
+int
+nvkm_therm_sensor_fini(struct nvkm_therm *therm, bool suspend)
+{
+	struct nvkm_timer *tmr = therm->subdev.device->timer;
+	if (suspend)
+		nvkm_timer_alarm(tmr, 0, &therm->sensor.therm_poll_alarm);
+	return 0;
+}
+
+void
+nvkm_therm_sensor_preinit(struct nvkm_therm *therm)
+{
+	const char *sensor_avail = "yes";
+
+	if (therm->func->temp_get(therm) < 0)
+		sensor_avail = "no";
+
+	nvkm_debug(&therm->subdev, "internal sensor: %s\n", sensor_avail);
+}
+
+int
+nvkm_therm_sensor_ctor(struct nvkm_therm *therm)
+{
+	struct nvkm_subdev *subdev = &therm->subdev;
+	struct nvkm_bios *bios = subdev->device->bios;
+
+	nvkm_alarm_init(&therm->sensor.therm_poll_alarm, alarm_timer_callback);
+
+	nvkm_therm_temp_set_defaults(therm);
+	if (nvbios_therm_sensor_parse(bios, NVBIOS_THERM_DOMAIN_CORE,
+				      &therm->bios_sensor))
+		nvkm_error(subdev, "nvbios_therm_sensor_parse failed\n");
+	nvkm_therm_temp_safety_checks(therm);
+
+	return 0;
+}