#include <linux/vmalloc.h>
#include <linux/acpi.h>
#include <linux/dmi.h>
+#include <linux/reboot.h>
#include <asm/unaligned.h>
{ 0x00001000, NVDEV_ENGINE_GR },
{ 0x00004000, NVDEV_ENGINE_CRYPT }, /* NV84:NVA3 */
{ 0x00008000, NVDEV_ENGINE_BSP },
+ { 0x00080000, NVDEV_SUBDEV_THERM }, /* NVA3:NVC0 */
{ 0x00100000, NVDEV_SUBDEV_TIMER },
{ 0x00200000, NVDEV_SUBDEV_GPIO },
{ 0x00400000, NVDEV_ENGINE_COPY0 }, /* NVA3- */
nouveau_therm_update(&priv->base, -1);
}
-static int
+int
nouveau_therm_mode(struct nouveau_therm *therm, int mode)
{
struct nouveau_therm_priv *priv = (void *)therm;
return nouveau_therm_mode(therm, value);
case NOUVEAU_THERM_ATTR_THRS_FAN_BOOST:
priv->bios_sensor.thrs_fan_boost.temp = value;
+ priv->sensor.program_alarms(therm);
return 0;
case NOUVEAU_THERM_ATTR_THRS_FAN_BOOST_HYST:
priv->bios_sensor.thrs_fan_boost.hysteresis = value;
+ priv->sensor.program_alarms(therm);
return 0;
case NOUVEAU_THERM_ATTR_THRS_DOWN_CLK:
priv->bios_sensor.thrs_down_clock.temp = value;
+ priv->sensor.program_alarms(therm);
return 0;
case NOUVEAU_THERM_ATTR_THRS_DOWN_CLK_HYST:
priv->bios_sensor.thrs_down_clock.hysteresis = value;
+ priv->sensor.program_alarms(therm);
return 0;
case NOUVEAU_THERM_ATTR_THRS_CRITICAL:
priv->bios_sensor.thrs_critical.temp = value;
+ priv->sensor.program_alarms(therm);
return 0;
case NOUVEAU_THERM_ATTR_THRS_CRITICAL_HYST:
priv->bios_sensor.thrs_critical.hysteresis = value;
+ priv->sensor.program_alarms(therm);
return 0;
case NOUVEAU_THERM_ATTR_THRS_SHUTDOWN:
priv->bios_sensor.thrs_shutdown.temp = value;
+ priv->sensor.program_alarms(therm);
return 0;
case NOUVEAU_THERM_ATTR_THRS_SHUTDOWN_HYST:
priv->bios_sensor.thrs_shutdown.hysteresis = value;
+ priv->sensor.program_alarms(therm);
return 0;
}
if (priv->fan->percent >= 0)
therm->fan_set(therm, priv->fan->percent);
+ priv->sensor.program_alarms(therm);
return 0;
}
if (device->chipset >= 0x46) {
nv_mask(therm, 0x15b8, 0x80000000, 0);
nv_wr32(therm, 0x15b0, 0x80003fff);
+ mdelay(10); /* wait for the temperature to stabilize */
return nv_rd32(therm, 0x15b4) & 0x3fff;
} else {
nv_wr32(therm, 0x15b0, 0xff);
return 0;
}
+static void
+nv40_therm_intr(struct nouveau_subdev *subdev)
+{
+ struct nouveau_therm *therm = nouveau_therm(subdev);
+ uint32_t stat = nv_rd32(therm, 0x1100);
+
+ /* traitement */
+
+ /* ack all IRQs */
+ nv_wr32(therm, 0x1100, 0x70000);
+
+ nv_error(therm, "THERM received an IRQ: stat = %x\n", stat);
+}
+
static int
nv40_therm_ctor(struct nouveau_object *parent,
struct nouveau_object *engine,
priv->base.base.pwm_get = nv40_fan_pwm_get;
priv->base.base.pwm_set = nv40_fan_pwm_set;
priv->base.base.temp_get = nv40_temp_get;
+ priv->base.sensor.program_alarms = nouveau_therm_program_alarms_polling;
+ nv_subdev(priv)->intr = nv40_therm_intr;
return nouveau_therm_preinit(&priv->base.base);
}
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,
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;
+ spin_lock_init(&priv->base.sensor.alarm_program_lock);
+ 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);
+
return nouveau_therm_preinit(&priv->base.base);
}
priv->base.base.pwm_clock = nv50_fan_pwm_clock;
priv->base.base.temp_get = nv50_temp_get;
priv->base.base.fan_sense = nva3_therm_fan_sense;
+ priv->base.sensor.program_alarms = nouveau_therm_program_alarms_polling;
return nouveau_therm_preinit(&priv->base.base);
}
priv->base.base.pwm_clock = nvd0_fan_pwm_clock;
priv->base.base.temp_get = nv50_temp_get;
priv->base.base.fan_sense = nva3_therm_fan_sense;
+ priv->base.sensor.program_alarms = nouveau_therm_program_alarms_polling;
return nouveau_therm_preinit(&priv->base.base);
}
struct dcb_gpio_func tach;
};
+enum nouveau_therm_thrs_direction {
+ NOUVEAU_THERM_THRS_FALLING = 0,
+ NOUVEAU_THERM_THRS_RISING = 1
+};
+
+enum nouveau_therm_thrs_state {
+ NOUVEAU_THERM_THRS_LOWER = 0,
+ NOUVEAU_THERM_THRS_HIGHER = 1
+};
+
+enum nouveau_therm_thrs {
+ NOUVEAU_THERM_THRS_FANBOOST = 0,
+ NOUVEAU_THERM_THRS_DOWNCLOCK = 1,
+ NOUVEAU_THERM_THRS_CRITICAL = 2,
+ NOUVEAU_THERM_THRS_SHUTDOWN = 3,
+ NOUVEAU_THERM_THRS_NR
+};
+
struct nouveau_therm_priv {
struct nouveau_therm base;
/* fan priv */
struct nouveau_fan *fan;
+ /* alarms priv */
+ struct {
+ spinlock_t alarm_program_lock;
+ struct nouveau_alarm therm_poll_alarm;
+ enum nouveau_therm_thrs_state alarm_state[NOUVEAU_THERM_THRS_NR];
+ void (*program_alarms)(struct nouveau_therm *);
+ } sensor;
+
+ /* what should be done if the card overheats */
+ struct {
+ void (*downclock)(struct nouveau_therm *, bool active);
+ void (*pause)(struct nouveau_therm *, bool active);
+ } emergency;
+
/* ic */
struct i2c_client *ic;
};
+int nouveau_therm_mode(struct nouveau_therm *therm, int mode);
int nouveau_therm_attr_get(struct nouveau_therm *therm,
enum nouveau_therm_attr_type type);
int nouveau_therm_attr_set(struct nouveau_therm *therm,
int nouveau_therm_preinit(struct nouveau_therm *);
+void nouveau_therm_sensor_set_threshold_state(struct nouveau_therm *therm,
+ enum nouveau_therm_thrs thrs,
+ enum nouveau_therm_thrs_state st);
+enum nouveau_therm_thrs_state
+nouveau_therm_sensor_get_threshold_state(struct nouveau_therm *therm,
+ enum nouveau_therm_thrs thrs);
+void nouveau_therm_sensor_event(struct nouveau_therm *therm,
+ enum nouveau_therm_thrs thrs,
+ enum nouveau_therm_thrs_direction dir);
+void nouveau_therm_program_alarms_polling(struct nouveau_therm *therm);
+
int nv50_fan_pwm_ctrl(struct nouveau_therm *, int, bool);
int nv50_fan_pwm_get(struct nouveau_therm *, int, u32 *, u32 *);
int nv50_fan_pwm_set(struct nouveau_therm *, int, u32, u32);
priv->bios_sensor.offset_den = 1;
}
+/* 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];
+}
+
+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"
+ };
+ uint8_t temperature = therm->temp_get(therm);
+
+ if (thrs < 0 || thrs > 3)
+ return;
+
+ if (dir == NOUVEAU_THERM_THRS_FALLING)
+ nv_info(therm, "temperature (%u C) went bellow the '%s' threshold\n",
+ temperature, thresolds[thrs]);
+ else
+ nv_info(therm, "temperature (%u C) hit the '%s' threshold\n",
+ temperature, thresolds[thrs]);
+
+ active = (dir == NOUVEAU_THERM_THRS_RISING);
+ switch (thrs) {
+ case NOUVEAU_THERM_THRS_FANBOOST:
+ nouveau_therm_fan_set(therm, true, 100);
+ nouveau_therm_mode(therm, FAN_CONTROL_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:
+ orderly_poweroff(true);
+ 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);
+
+ /* schedule the next poll in one second */
+ if (list_empty(&alarm->head))
+ ptimer->alarm(ptimer, 1000 * 1000 * 1000, alarm);
+
+ spin_unlock_irqrestore(&priv->sensor.alarm_program_lock, flags);
+}
+
+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_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);
+
+ alarm_timer_callback(&priv->sensor.therm_poll_alarm);
+}
+
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))
projects / platform / kernel / linux-starfive.git / commitdiff