From 340ff4104f4454f8f1c3bf793c46411115309545 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Wed, 16 Mar 2016 14:57:22 -0400 Subject: drm/msm: split out timeout_to_jiffies helper Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/msm_drv.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers/gpu/drm/msm/msm_drv.h') diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index 86b7b3796d8f..af007ac8c733 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -302,5 +302,20 @@ static inline int align_pitch(int width, int bpp) /* for conditionally setting boolean flag(s): */ #define COND(bool, val) ((bool) ? (val) : 0) +static inline unsigned long timeout_to_jiffies(const ktime_t *timeout) +{ + ktime_t now = ktime_get(); + unsigned long remaining_jiffies; + + if (ktime_compare(*timeout, now) < 0) { + remaining_jiffies = 0; + } else { + ktime_t rem = ktime_sub(*timeout, now); + struct timespec ts = ktime_to_timespec(rem); + remaining_jiffies = timespec_to_jiffies(&ts); + } + + return remaining_jiffies; +} #endif /* __MSM_DRV_H__ */ -- cgit v1.2.3