drm/i915: Kill obj->pending_flip

The pending flip mask no longer set anywhere, so trying to wait for
while it's non-zero is a no-op. Remove it completely.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 0f1d15b..b1f6a09 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1215,13 +1215,6 @@ struct drm_i915_gem_object {
 
        /** for phy allocated objects */
        struct drm_i915_gem_phys_object *phys_obj;
-
-       /**
-        * Number of crtcs where this object is currently the fb, but
-        * will be page flipped away on the next vblank.  When it
-        * reaches 0, dev_priv->pending_flip_queue will be woken up.
-        */
-       atomic_t pending_flip;
 };
 #define to_gem_object(obj) (&((struct drm_i915_gem_object *)(obj))->base)
 

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index d28f43f..6dfb49c 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2226,12 +2226,6 @@ intel_finish_fb(struct drm_framebuffer *old_fb)
        bool was_interruptible = dev_priv->mm.interruptible;
        int ret;
 
-       WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue));
-
-       wait_event(dev_priv->pending_flip_queue,
-                  i915_reset_in_progress(&dev_priv->gpu_error) ||
-                  atomic_read(&obj->pending_flip) == 0);
-
        /* Big Hammer, we also need to ensure that any pending
         * MI_WAIT_FOR_EVENT inside a user batch buffer on the
         * current scanout is retired before unpinning the old