From: Ville Syrjälä <ville.syrj...@linux.intel.com>
Move the functionality of intel_crtc_wait_for_pending_flips()
into intel_crtc_wait_for_pending_flips_locked().
intel_crtc_wait_for_pending_flips() is now just a wrapper that
grab struct_mutex and calls intel_crtc_wait_for_pending_flips_locked().
This changes the behaviour of intel_crtc_wait_for_pending_flips()
so that it now holds struct_mutex while waiting for pending flips.
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/i915/intel_display.c | 24 +++++++++++++++++-------
1 file changed, 17 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index 6c21985..a2e04f7 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2281,6 +2281,22 @@ static bool intel_crtc_has_pending_flip(struct drm_crtc
*crtc)
return pending;
}
+static void intel_crtc_wait_for_pending_flips_locked(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ if (crtc->fb == NULL)
+ return;
+
+ WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue));
+
+ wait_event(dev_priv->pending_flip_queue,
+ !intel_crtc_has_pending_flip(crtc));
+
+ intel_finish_fb(crtc->fb);
+}
+
static int
intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
struct drm_framebuffer *fb)
@@ -2880,18 +2896,12 @@ static void ironlake_fdi_disable(struct drm_crtc *crtc)
static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
if (crtc->fb == NULL)
return;
- WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue));
-
- wait_event(dev_priv->pending_flip_queue,
- !intel_crtc_has_pending_flip(crtc));
-
mutex_lock(&dev->struct_mutex);
- intel_finish_fb(crtc->fb);
+ intel_crtc_wait_for_pending_flips_locked(crtc);
mutex_unlock(&dev->struct_mutex);
}
--
1.7.12.4
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