diff options
Diffstat (limited to 'drivers/gpu/drm/panfrost/panfrost_devfreq.h')
| -rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_devfreq.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/gpu/drm/panfrost/panfrost_devfreq.h b/drivers/gpu/drm/panfrost/panfrost_devfreq.h index 0697f8d5aa34..3392df1020be 100644 --- a/drivers/gpu/drm/panfrost/panfrost_devfreq.h +++ b/drivers/gpu/drm/panfrost/panfrost_devfreq.h @@ -4,6 +4,7 @@ #ifndef __PANFROST_DEVFREQ_H__ #define __PANFROST_DEVFREQ_H__ +#include <linux/spinlock.h> #include <linux/ktime.h> struct devfreq; @@ -14,10 +15,16 @@ struct panfrost_device; struct panfrost_devfreq { struct devfreq *devfreq; struct thermal_cooling_device *cooling; + ktime_t busy_time; ktime_t idle_time; ktime_t time_last_update; - atomic_t busy_count; + int busy_count; + /* + * Protect busy_time, idle_time, time_last_update and busy_count + * because these can be updated concurrently between multiple jobs. + */ + spinlock_t lock; }; int panfrost_devfreq_init(struct panfrost_device *pfdev); |