From: Martin Peres <martin.pe...@labri.fr>
This should avoid the situation where a user gets its kernel logs flooded when
temperature oscillates around a threshold with 0°C hysteresis.
This patch is just meant to fix broken vbios (as reported on a nv4e on
sysfs hwmon interface.
Signed-off-by: Martin Peres <martin.pe...@labri.fr>
---
drivers/gpu/drm/nouveau/core/subdev/therm/temp.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/temp.c
b/drivers/gpu/drm/nouveau/core/subdev/therm/temp.c
index 76621cc..50e17f0 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/therm/temp.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/therm/temp.c
@@ -60,11 +60,18 @@ 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;
if (!priv->bios_sensor.slope_div)
priv->bios_sensor.slope_div = 1;
if (!priv->bios_sensor.offset_den)
priv->bios_sensor.offset_den = 1;
+
+ /* 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 ! */
--
1.8.0.1
_______________________________________________
Nouveau mailing list
Nouveau@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/nouveau
