diff options
| author | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2015-09-01 13:15:33 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-09-02 14:51:40 +0300 |
| commit | 85a62bf9d8ef8d533635270ae985281c58e8c974 (patch) | |
| tree | b8fbe6c3f327b94c71fa936bee3abac94934c65d /drivers/gpu/drm/i915/intel_sprite.c | |
| parent | 34e0adbb4508a318e8039ee3959383e4bf080f04 (diff) | |
| download | linux-85a62bf9d8ef8d533635270ae985281c58e8c974.tar.xz | |
drm/i915: Also record time difference if vblank evasion fails, v2.
This makes the error message slightly more useful.
Changes since v1:
- Use ktime_get() while irqs are still disabled. (vsyrjala)
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_sprite.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_sprite.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c index c35c2339f472..ca7e26430e66 100644 --- a/drivers/gpu/drm/i915/intel_sprite.c +++ b/drivers/gpu/drm/i915/intel_sprite.c @@ -134,6 +134,7 @@ void intel_pipe_update_start(struct intel_crtc *crtc) drm_crtc_vblank_put(&crtc->base); + crtc->start_vbl_time = ktime_get(); crtc->start_vbl_count = dev->driver->get_vblank_counter(dev, pipe); trace_i915_pipe_update_vblank_evaded(crtc, min, max, @@ -154,14 +155,16 @@ void intel_pipe_update_end(struct intel_crtc *crtc) struct drm_device *dev = crtc->base.dev; enum pipe pipe = crtc->pipe; u32 end_vbl_count = dev->driver->get_vblank_counter(dev, pipe); + ktime_t end_vbl_time = ktime_get(); trace_i915_pipe_update_end(crtc, end_vbl_count); local_irq_enable(); if (crtc->start_vbl_count && crtc->start_vbl_count != end_vbl_count) - DRM_ERROR("Atomic update failure on pipe %c (start=%u end=%u)\n", - pipe_name(pipe), crtc->start_vbl_count, end_vbl_count); + DRM_ERROR("Atomic update failure on pipe %c (start=%u end=%u) time %lld us\n", + pipe_name(pipe), crtc->start_vbl_count, end_vbl_count, + ktime_us_delta(end_vbl_time, crtc->start_vbl_time)); } static void |