diff options
| author |   Thomas Gleixner <tglx@linutronix.de> | 2014-07-16 21:04:26 +0000 |
|---|---|---|
| committer |   John Stultz <john.stultz@linaro.org> | 2014-07-23 10:18:03 -0700 |
| commit | d2cb58c85ce4789caafa66fa8f1c641ab2504ead (patch) | |
| tree | c2676c12e5058c0ac7582a5d14bacb7298728536 /drivers/gpu | |
| parent | input: evdev: Use ktime_mono_to_real() (diff) | |
| download | linux-dev-d2cb58c85ce4789caafa66fa8f1c641ab2504ead.tar.xz linux-dev-d2cb58c85ce4789caafa66fa8f1c641ab2504ead.zip | |
drm: Use ktime_mono_to_real()
Convert the monotonic timestamp with ktime_mono_to_real() in
drm_calc_vbltimestamp_from_scanoutpos().
In get_drm_timestamp we can call either ktime_get() or
ktime_get_real() depending on drm_timestamp_monotonic. No point in
having two calls into the core for CLOCK_REALTIME.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/drm_irq.c | 16 |
1 files changed, 3 insertions, 13 deletions
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index 0de123afdb34..08ba1209228e 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -542,8 +542,8 @@ int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, int crtc, const struct drm_crtc *refcrtc, const struct drm_display_mode *mode) { - ktime_t stime, etime, mono_time_offset; struct timeval tv_etime; + ktime_t stime, etime; int vbl_status; int vpos, hpos, i; int framedur_ns, linedur_ns, pixeldur_ns, delta_ns, duration_ns; @@ -588,13 +588,6 @@ int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, int crtc, vbl_status = dev->driver->get_scanout_position(dev, crtc, flags, &vpos, &hpos, &stime, &etime); - /* - * Get correction for CLOCK_MONOTONIC -> CLOCK_REALTIME if - * CLOCK_REALTIME is requested. - */ - if (!drm_timestamp_monotonic) - mono_time_offset = ktime_get_monotonic_offset(); - /* Return as no-op if scanout query unsupported or failed. */ if (!(vbl_status & DRM_SCANOUTPOS_VALID)) { DRM_DEBUG("crtc %d : scanoutpos query failed [%d].\n", @@ -633,7 +626,7 @@ int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, int crtc, delta_ns = vpos * linedur_ns + hpos * pixeldur_ns; if (!drm_timestamp_monotonic) - etime = ktime_sub(etime, mono_time_offset); + etime = ktime_mono_to_real(etime); /* save this only for debugging purposes */ tv_etime = ktime_to_timeval(etime); @@ -664,10 +657,7 @@ static struct timeval get_drm_timestamp(void) { ktime_t now; - now = ktime_get(); - if (!drm_timestamp_monotonic) - now = ktime_sub(now, ktime_get_monotonic_offset()); - + now = drm_timestamp_monotonic ? ktime_get() : ktime_get_real(); return ktime_to_timeval(now); } |