From 4a5d0c4e5124f8685c82e8ed0820b9aa11920e17 Mon Sep 17 00:00:00 2001 From: Mario Kleiner Date: Thu, 9 Dec 2010 07:00:07 +0100 Subject: [PATCH] --- yaml --- r: 228814 b: refs/heads/master c: 49b14a5ca26fc18bafe33bd9704a1a1cea681fbf h: refs/heads/master v: v3 --- [refs] | 2 +- trunk/drivers/gpu/drm/i915/intel_display.c | 34 +++++++++++++--------- 2 files changed, 21 insertions(+), 15 deletions(-) diff --git a/[refs] b/[refs] index 8061f244c2a1..ac98508c0512 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 0af7e4dff50454905092d468e91c1ef92e10e6b4 +refs/heads/master: 49b14a5ca26fc18bafe33bd9704a1a1cea681fbf diff --git a/trunk/drivers/gpu/drm/i915/intel_display.c b/trunk/drivers/gpu/drm/i915/intel_display.c index 0c201d684584..fe6538297872 100644 --- a/trunk/drivers/gpu/drm/i915/intel_display.c +++ b/trunk/drivers/gpu/drm/i915/intel_display.c @@ -5252,21 +5252,22 @@ static void intel_unpin_work_fn(struct work_struct *__work) } static void do_intel_finish_page_flip(struct drm_device *dev, - struct drm_crtc *crtc, - int called_before_vblirq) + struct drm_crtc *crtc) { drm_i915_private_t *dev_priv = dev->dev_private; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); struct intel_unpin_work *work; struct drm_i915_gem_object *obj; struct drm_pending_vblank_event *e; - struct timeval now; + struct timeval tnow, tvbl; unsigned long flags; /* Ignore early vblank irqs */ if (intel_crtc == NULL) return; + do_gettimeofday(&tnow); + spin_lock_irqsave(&dev->event_lock, flags); work = intel_crtc->unpin_work; if (work == NULL || !work->pending) { @@ -5278,22 +5279,29 @@ static void do_intel_finish_page_flip(struct drm_device *dev, if (work->event) { e = work->event; - e->event.sequence = drm_vblank_count_and_time(dev, intel_crtc->pipe, &now); + e->event.sequence = drm_vblank_count_and_time(dev, intel_crtc->pipe, &tvbl); /* Called before vblank count and timestamps have * been updated for the vblank interval of flip * completion? Need to increment vblank count and * add one videorefresh duration to returned timestamp - * to account for this. + * to account for this. We assume this happened if we + * get called over 0.9 frame durations after the last + * timestamped vblank. + * + * This calculation can not be used with vrefresh rates + * below 5Hz (10Hz to be on the safe side) without + * promoting to 64 integers. */ - if (called_before_vblirq) { + if (10 * (timeval_to_ns(&tnow) - timeval_to_ns(&tvbl)) > + 9 * crtc->framedur_ns) { e->event.sequence++; - now = ns_to_timeval(timeval_to_ns(&now) + - crtc->framedur_ns); + tvbl = ns_to_timeval(timeval_to_ns(&tvbl) + + crtc->framedur_ns); } - e->event.tv_sec = now.tv_sec; - e->event.tv_usec = now.tv_usec; + e->event.tv_sec = tvbl.tv_sec; + e->event.tv_usec = tvbl.tv_usec; list_add_tail(&e->base.link, &e->base.file_priv->event_list); @@ -5321,8 +5329,7 @@ void intel_finish_page_flip(struct drm_device *dev, int pipe) drm_i915_private_t *dev_priv = dev->dev_private; struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; - /* Called after drm_handle_vblank has run for finish vblank. */ - do_intel_finish_page_flip(dev, crtc, 0); + do_intel_finish_page_flip(dev, crtc); } void intel_finish_page_flip_plane(struct drm_device *dev, int plane) @@ -5330,8 +5337,7 @@ void intel_finish_page_flip_plane(struct drm_device *dev, int plane) drm_i915_private_t *dev_priv = dev->dev_private; struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane]; - /* Called before drm_handle_vblank has run for finish vblank. */ - do_intel_finish_page_flip(dev, crtc, 1); + do_intel_finish_page_flip(dev, crtc); } void intel_prepare_page_flip(struct drm_device *dev, int plane)