drm/nouveau: Add temperature support (vbios parsing, readings, hwmon)

Signed-off-by: Martin Peres <martin.peres@ensi-bourges.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 8d36ed6907d1..3fc5596df360 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -387,10 +387,26 @@ struct nouveau_pm_level {
         u8 fanspeed;
 };
 
+struct nouveau_pm_temp_sensor_constants {
+        u16 offset_constant;
+        s16 offset_mult;
+        u16 offset_div;
+        u16 slope_mult;
+        u16 slope_div;
+};
+
+struct nouveau_pm_threshold_temp {
+        s16 critical;
+        s16 down_clock;
+        s16 fan_boost;
+};
+
 struct nouveau_pm_engine {
         struct nouveau_pm_voltage voltage;
         struct nouveau_pm_level perflvl[NOUVEAU_PM_MAX_LEVEL];
         int nr_perflvl;
+        struct nouveau_pm_temp_sensor_constants sensor_constants;
+        struct nouveau_pm_threshold_temp threshold_temp;
 
         struct nouveau_pm_level boot;
         struct nouveau_pm_level *cur;
@@ -663,6 +679,8 @@ struct drm_nouveau_private {
 
         struct nouveau_fbdev *nfbdev;
         struct apertures_struct *apertures;
+
+        struct device *int_hwmon_dev;
 };
 
 static inline struct drm_nouveau_private *