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 | 199 |
1 files changed, 176 insertions, 23 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c index 9360ddd469e7..86632cbd65ce 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c +++ b/drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c @@ -25,6 +25,10 @@ #include "priv.h" +struct nv50_therm_priv { + struct nouveau_therm_priv base; +}; + static int pwm_info(struct nouveau_therm *therm, int *line, int *ctrl, int *indx) { @@ -51,6 +55,16 @@ pwm_info(struct nouveau_therm *therm, int *line, int *ctrl, int *indx) } int +nv50_fan_pwm_ctrl(struct nouveau_therm *therm, int line, bool enable) +{ + u32 data = enable ? 0x00000001 : 0x00000000; + int ctrl, id, ret = pwm_info(therm, &line, &ctrl, &id); + if (ret == 0) + nv_mask(therm, ctrl, 0x00010001 << line, data << line); + return ret; +} + +int nv50_fan_pwm_get(struct nouveau_therm *therm, int line, u32 *divs, u32 *duty) { int ctrl, id, ret = pwm_info(therm, &line, &ctrl, &id); @@ -73,7 +87,6 @@ nv50_fan_pwm_set(struct nouveau_therm *therm, int line, u32 divs, u32 duty) if (ret) return ret; - nv_mask(therm, ctrl, 0x00010001 << line, 0x00000001 << line); nv_wr32(therm, 0x00e114 + (id * 8), divs); nv_wr32(therm, 0x00e118 + (id * 8), duty | 0x80000000); return 0; @@ -111,38 +124,178 @@ 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) +{ + 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); +} + +static void +nv50_therm_intr(struct nouveau_subdev *subdev) +{ + 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; + } + + /* 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; + } + + /* THRS_2 : critical */ + if (intr & 0x010) { + nv50_therm_threshold_hyst_emulation(therm, 0x204c0, 22, + &sensor->thrs_critical, + NOUVEAU_THERM_THRS_CRITICAL); + intr &= ~0x010; + } + + if (intr) + nv_error(therm, "unhandled intr 0x%08x\n", intr); + + /* ACK everything */ + nv_wr32(therm, 0x20100, 0xffffffff); + nv_wr32(therm, 0x1100, 0x10000); /* PBUS */ + + spin_unlock_irqrestore(&priv->sensor.alarm_program_lock, flags); +} + static int nv50_therm_ctor(struct nouveau_object *parent, - struct nouveau_object *engine, - struct nouveau_oclass *oclass, void *data, u32 size, - struct nouveau_object **pobject) + struct nouveau_object *engine, + struct nouveau_oclass *oclass, void *data, u32 size, + struct nouveau_object **pobject) { - struct nouveau_therm_priv *priv; - struct nouveau_therm *therm; + struct nv50_therm_priv *priv; int ret; ret = nouveau_therm_create(parent, engine, oclass, &priv); *pobject = nv_object(priv); - therm = (void *) priv; if (ret) return ret; - nouveau_therm_ic_ctor(therm); - nouveau_therm_sensor_ctor(therm); - nouveau_therm_fan_ctor(therm); + priv->base.base.pwm_ctrl = nv50_fan_pwm_ctrl; + priv->base.base.pwm_get = nv50_fan_pwm_get; + 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; - priv->fan.pwm_get = nv50_fan_pwm_get; - priv->fan.pwm_set = nv50_fan_pwm_set; - priv->fan.pwm_clock = nv50_fan_pwm_clock; + /* 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); - therm->temp_get = nv50_temp_get; - therm->fan_get = nouveau_therm_fan_user_get; - therm->fan_set = nouveau_therm_fan_user_set; - therm->fan_sense = nouveau_therm_fan_sense; - therm->attr_get = nouveau_therm_attr_get; - therm->attr_set = nouveau_therm_attr_set; - - return 0; + return nouveau_therm_preinit(&priv->base.base); } struct nouveau_oclass @@ -151,7 +304,7 @@ nv50_therm_oclass = { .ofuncs = &(struct nouveau_ofuncs) { .ctor = nv50_therm_ctor, .dtor = _nouveau_therm_dtor, - .init = nouveau_therm_init, - .fini = nouveau_therm_fini, + .init = _nouveau_therm_init, + .fini = _nouveau_therm_fini, }, }; |