diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c | 175 |
1 files changed, 31 insertions, 144 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c index 86632cb..8cf7597 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c +++ b/drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c @@ -118,145 +118,36 @@ nv50_fan_pwm_clock(struct nouveau_therm *therm) return pwm_clock; } -int -nv50_temp_get(struct nouveau_therm *therm) -{ - return nv_rd32(therm, 0x20400); -} - -static void -nv50_therm_program_alarms(struct nouveau_therm *therm) -{ - struct nouveau_therm_priv *priv = (void *)therm; - struct nvbios_therm_sensor *sensor = &priv->bios_sensor; - unsigned long flags; - - spin_lock_irqsave(&priv->sensor.alarm_program_lock, flags); - - /* enable RISING and FALLING IRQs for shutdown, THRS 0, 1, 2 and 4 */ - nv_wr32(therm, 0x20000, 0x000003ff); - - /* shutdown: The computer should be shutdown when reached */ - nv_wr32(therm, 0x20484, sensor->thrs_shutdown.hysteresis); - nv_wr32(therm, 0x20480, sensor->thrs_shutdown.temp); - - /* THRS_1 : fan boost*/ - nv_wr32(therm, 0x204c4, sensor->thrs_fan_boost.temp); - - /* THRS_2 : critical */ - nv_wr32(therm, 0x204c0, sensor->thrs_critical.temp); - - /* THRS_4 : down clock */ - nv_wr32(therm, 0x20414, sensor->thrs_down_clock.temp); - spin_unlock_irqrestore(&priv->sensor.alarm_program_lock, flags); - - nv_info(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); - -} - -/* must be called with alarm_program_lock taken ! */ static void -nv50_therm_threshold_hyst_emulation(struct nouveau_therm *therm, - uint32_t thrs_reg, u8 status_bit, - const struct nvbios_therm_threshold *thrs, - enum nouveau_therm_thrs thrs_name) +nv50_sensor_setup(struct nouveau_therm *therm) { - enum nouveau_therm_thrs_direction direction; - enum nouveau_therm_thrs_state prev_state, new_state; - int temp, cur; - - prev_state = nouveau_therm_sensor_get_threshold_state(therm, thrs_name); - temp = nv_rd32(therm, thrs_reg); - - /* program the next threshold */ - if (temp == thrs->temp) { - nv_wr32(therm, thrs_reg, thrs->temp - thrs->hysteresis); - new_state = NOUVEAU_THERM_THRS_HIGHER; - } else { - nv_wr32(therm, thrs_reg, thrs->temp); - new_state = NOUVEAU_THERM_THRS_LOWER; - } - - /* fix the state (in case someone reprogrammed the alarms) */ - cur = therm->temp_get(therm); - if (new_state == NOUVEAU_THERM_THRS_LOWER && cur > thrs->temp) - new_state = NOUVEAU_THERM_THRS_HIGHER; - else if (new_state == NOUVEAU_THERM_THRS_HIGHER && - cur < thrs->temp - thrs->hysteresis) - new_state = NOUVEAU_THERM_THRS_LOWER; - nouveau_therm_sensor_set_threshold_state(therm, thrs_name, new_state); - - /* find the direction */ - if (prev_state < new_state) - direction = NOUVEAU_THERM_THRS_RISING; - else if (prev_state > new_state) - direction = NOUVEAU_THERM_THRS_FALLING; - else - return; - - /* advertise a change in direction */ - nouveau_therm_sensor_event(therm, thrs_name, direction); + nv_mask(therm, 0x20010, 0x40000000, 0x0); + mdelay(20); /* wait for the temperature to stabilize */ } -static void -nv50_therm_intr(struct nouveau_subdev *subdev) +static int +nv50_temp_get(struct nouveau_therm *therm) { - struct nouveau_therm *therm = nouveau_therm(subdev); struct nouveau_therm_priv *priv = (void *)therm; struct nvbios_therm_sensor *sensor = &priv->bios_sensor; - unsigned long flags; - uint32_t intr; - - spin_lock_irqsave(&priv->sensor.alarm_program_lock, flags); - - intr = nv_rd32(therm, 0x20100); - - /* THRS_4: downclock */ - if (intr & 0x002) { - nv50_therm_threshold_hyst_emulation(therm, 0x20414, 24, - &sensor->thrs_down_clock, - NOUVEAU_THERM_THRS_DOWNCLOCK); - intr &= ~0x002; - } + int core_temp; - /* shutdown */ - if (intr & 0x004) { - nv50_therm_threshold_hyst_emulation(therm, 0x20480, 20, - &sensor->thrs_shutdown, - NOUVEAU_THERM_THRS_SHUTDOWN); - intr &= ~0x004; - } - - /* THRS_1 : fan boost */ - if (intr & 0x008) { - nv50_therm_threshold_hyst_emulation(therm, 0x204c4, 21, - &sensor->thrs_fan_boost, - NOUVEAU_THERM_THRS_FANBOOST); - intr &= ~0x008; - } + core_temp = nv_rd32(therm, 0x20014) & 0x3fff; - /* THRS_2 : critical */ - if (intr & 0x010) { - nv50_therm_threshold_hyst_emulation(therm, 0x204c0, 22, - &sensor->thrs_critical, - NOUVEAU_THERM_THRS_CRITICAL); - intr &= ~0x010; - } + /* 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; - if (intr) - nv_error(therm, "unhandled intr 0x%08x\n", intr); + 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; - /* ACK everything */ - nv_wr32(therm, 0x20100, 0xffffffff); - nv_wr32(therm, 0x1100, 0x10000); /* PBUS */ + /* reserve negative temperatures for errors */ + if (core_temp < 0) + core_temp = 0; - spin_unlock_irqrestore(&priv->sensor.alarm_program_lock, flags); + return core_temp; } static int @@ -278,33 +169,29 @@ nv50_therm_ctor(struct nouveau_object *parent, priv->base.base.pwm_set = nv50_fan_pwm_set; priv->base.base.pwm_clock = nv50_fan_pwm_clock; priv->base.base.temp_get = nv50_temp_get; - priv->base.sensor.program_alarms = nv50_therm_program_alarms; - nv_subdev(priv)->intr = nv50_therm_intr; - - /* init the thresholds */ - nouveau_therm_sensor_set_threshold_state(&priv->base.base, - NOUVEAU_THERM_THRS_SHUTDOWN, - NOUVEAU_THERM_THRS_LOWER); - nouveau_therm_sensor_set_threshold_state(&priv->base.base, - NOUVEAU_THERM_THRS_FANBOOST, - NOUVEAU_THERM_THRS_LOWER); - nouveau_therm_sensor_set_threshold_state(&priv->base.base, - NOUVEAU_THERM_THRS_CRITICAL, - NOUVEAU_THERM_THRS_LOWER); - nouveau_therm_sensor_set_threshold_state(&priv->base.base, - NOUVEAU_THERM_THRS_DOWNCLOCK, - NOUVEAU_THERM_THRS_LOWER); + priv->base.sensor.program_alarms = nouveau_therm_program_alarms_polling; + nv_subdev(priv)->intr = nv40_therm_intr; return nouveau_therm_preinit(&priv->base.base); } +static int +nv50_therm_init(struct nouveau_object *object) +{ + struct nouveau_therm *therm = (void *)object; + + nv50_sensor_setup(therm); + + return _nouveau_therm_init(object); +} + struct nouveau_oclass nv50_therm_oclass = { .handle = NV_SUBDEV(THERM, 0x50), .ofuncs = &(struct nouveau_ofuncs) { .ctor = nv50_therm_ctor, .dtor = _nouveau_therm_dtor, - .init = _nouveau_therm_init, + .init = nv50_therm_init, .fini = _nouveau_therm_fini, }, }; |