diff options
Diffstat (limited to 'nvkm/subdev/therm/temp.c')
-rw-r--r-- | nvkm/subdev/therm/temp.c | 264 |
1 files changed, 0 insertions, 264 deletions
diff --git a/nvkm/subdev/therm/temp.c b/nvkm/subdev/therm/temp.c deleted file mode 100644 index 6212537b9..000000000 --- a/nvkm/subdev/therm/temp.c +++ /dev/null @@ -1,264 +0,0 @@ -/* - * 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/object.h> -#include <core/device.h> - -#include <subdev/bios.h> - -static void -nouveau_therm_temp_set_defaults(struct nouveau_therm *therm) -{ - struct nouveau_therm_priv *priv = (void *)therm; - - priv->bios_sensor.offset_constant = 0; - - priv->bios_sensor.thrs_fan_boost.temp = 90; - priv->bios_sensor.thrs_fan_boost.hysteresis = 3; - - priv->bios_sensor.thrs_down_clock.temp = 95; - priv->bios_sensor.thrs_down_clock.hysteresis = 3; - - priv->bios_sensor.thrs_critical.temp = 105; - priv->bios_sensor.thrs_critical.hysteresis = 5; - - priv->bios_sensor.thrs_shutdown.temp = 135; - priv->bios_sensor.thrs_shutdown.hysteresis = 5; /*not that it matters */ -} - - -static void -nouveau_therm_temp_safety_checks(struct nouveau_therm *therm) -{ - struct nouveau_therm_priv *priv = (void *)therm; - struct nvbios_therm_sensor *s = &priv->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 nouveau_therm_sensor_set_threshold_state(struct nouveau_therm *therm, - enum nouveau_therm_thrs thrs, - enum nouveau_therm_thrs_state st) -{ - struct nouveau_therm_priv *priv = (void *)therm; - priv->sensor.alarm_state[thrs] = st; -} - -/* must be called with alarm_program_lock taken ! */ -enum nouveau_therm_thrs_state -nouveau_therm_sensor_get_threshold_state(struct nouveau_therm *therm, - enum nouveau_therm_thrs thrs) -{ - struct nouveau_therm_priv *priv = (void *)therm; - return priv->sensor.alarm_state[thrs]; -} - -static void -nv_poweroff_work(struct work_struct *work) -{ - orderly_poweroff(true); - kfree(work); -} - -void nouveau_therm_sensor_event(struct nouveau_therm *therm, - enum nouveau_therm_thrs thrs, - enum nouveau_therm_thrs_direction dir) -{ - struct nouveau_therm_priv *priv = (void *)therm; - bool active; - const char *thresolds[] = { - "fanboost", "downclock", "critical", "shutdown" - }; - int temperature = therm->temp_get(therm); - - if (thrs < 0 || thrs > 3) - return; - - if (dir == NOUVEAU_THERM_THRS_FALLING) - nv_info(therm, "temperature (%i C) went below the '%s' threshold\n", - temperature, thresolds[thrs]); - else - nv_info(therm, "temperature (%i C) hit the '%s' threshold\n", - temperature, thresolds[thrs]); - - active = (dir == NOUVEAU_THERM_THRS_RISING); - switch (thrs) { - case NOUVEAU_THERM_THRS_FANBOOST: - if (active) { - nouveau_therm_fan_set(therm, true, 100); - nouveau_therm_fan_mode(therm, NOUVEAU_THERM_CTRL_AUTO); - } - break; - case NOUVEAU_THERM_THRS_DOWNCLOCK: - if (priv->emergency.downclock) - priv->emergency.downclock(therm, active); - break; - case NOUVEAU_THERM_THRS_CRITICAL: - if (priv->emergency.pause) - priv->emergency.pause(therm, active); - break; - case NOUVEAU_THERM_THRS_SHUTDOWN: - if (active) { - struct work_struct *work; - - work = kmalloc(sizeof(*work), GFP_ATOMIC); - if (work) { - INIT_WORK(work, nv_poweroff_work); - schedule_work(work); - } - } - break; - case NOUVEAU_THERM_THRS_NR: - break; - } - -} - -/* must be called with alarm_program_lock taken ! */ -static void -nouveau_therm_threshold_hyst_polling(struct nouveau_therm *therm, - const struct nvbios_therm_threshold *thrs, - enum nouveau_therm_thrs thrs_name) -{ - enum nouveau_therm_thrs_direction direction; - enum nouveau_therm_thrs_state prev_state, new_state; - int temp = therm->temp_get(therm); - - prev_state = nouveau_therm_sensor_get_threshold_state(therm, thrs_name); - - if (temp >= thrs->temp && prev_state == NOUVEAU_THERM_THRS_LOWER) { - direction = NOUVEAU_THERM_THRS_RISING; - new_state = NOUVEAU_THERM_THRS_HIGHER; - } else if (temp <= thrs->temp - thrs->hysteresis && - prev_state == NOUVEAU_THERM_THRS_HIGHER) { - direction = NOUVEAU_THERM_THRS_FALLING; - new_state = NOUVEAU_THERM_THRS_LOWER; - } else - return; /* nothing to do */ - - nouveau_therm_sensor_set_threshold_state(therm, thrs_name, new_state); - nouveau_therm_sensor_event(therm, thrs_name, direction); -} - -static void -alarm_timer_callback(struct nouveau_alarm *alarm) -{ - struct nouveau_therm_priv *priv = - container_of(alarm, struct nouveau_therm_priv, sensor.therm_poll_alarm); - struct nvbios_therm_sensor *sensor = &priv->bios_sensor; - struct nouveau_timer *ptimer = nouveau_timer(priv); - struct nouveau_therm *therm = &priv->base; - unsigned long flags; - - spin_lock_irqsave(&priv->sensor.alarm_program_lock, flags); - - nouveau_therm_threshold_hyst_polling(therm, &sensor->thrs_fan_boost, - NOUVEAU_THERM_THRS_FANBOOST); - - nouveau_therm_threshold_hyst_polling(therm, &sensor->thrs_down_clock, - NOUVEAU_THERM_THRS_DOWNCLOCK); - - nouveau_therm_threshold_hyst_polling(therm, &sensor->thrs_critical, - NOUVEAU_THERM_THRS_CRITICAL); - - nouveau_therm_threshold_hyst_polling(therm, &sensor->thrs_shutdown, - NOUVEAU_THERM_THRS_SHUTDOWN); - - spin_unlock_irqrestore(&priv->sensor.alarm_program_lock, flags); - - /* schedule the next poll in one second */ - if (therm->temp_get(therm) >= 0 && list_empty(&alarm->head)) - ptimer->alarm(ptimer, 1000000000ULL, alarm); -} - -void -nouveau_therm_program_alarms_polling(struct nouveau_therm *therm) -{ - struct nouveau_therm_priv *priv = (void *)therm; - struct nvbios_therm_sensor *sensor = &priv->bios_sensor; - - nv_debug(therm, - "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(&priv->sensor.therm_poll_alarm); -} - -int -nouveau_therm_sensor_init(struct nouveau_therm *therm) -{ - struct nouveau_therm_priv *priv = (void *)therm; - priv->sensor.program_alarms(therm); - return 0; -} - -int -nouveau_therm_sensor_fini(struct nouveau_therm *therm, bool suspend) -{ - struct nouveau_therm_priv *priv = (void *)therm; - struct nouveau_timer *ptimer = nouveau_timer(therm); - - if (suspend) - ptimer->alarm_cancel(ptimer, &priv->sensor.therm_poll_alarm); - return 0; -} - -void -nouveau_therm_sensor_preinit(struct nouveau_therm *therm) -{ - const char *sensor_avail = "yes"; - - if (therm->temp_get(therm) < 0) - sensor_avail = "no"; - - nv_info(therm, "internal sensor: %s\n", sensor_avail); -} - -int -nouveau_therm_sensor_ctor(struct nouveau_therm *therm) -{ - struct nouveau_therm_priv *priv = (void *)therm; - struct nouveau_bios *bios = nouveau_bios(therm); - - nouveau_alarm_init(&priv->sensor.therm_poll_alarm, alarm_timer_callback); - - nouveau_therm_temp_set_defaults(therm); - if (nvbios_therm_sensor_parse(bios, NVBIOS_THERM_DOMAIN_CORE, - &priv->bios_sensor)) - nv_error(therm, "nvbios_therm_sensor_parse failed\n"); - nouveau_therm_temp_safety_checks(therm); - - return 0; -} |