drm/i915: Skip fence installation for objects with rotated views (v4)
While pinning a fb object to the display plane, only install a fence
if the object is using a normal view. This corresponds with the
behavior found in i915_gem_object_do_pin() where the fencability
criteria is determined only for objects with normal views.
v2:
Look at the object's map_and_fenceable flag to determine whether to
install a fence or not (Chris).
v3:
Pin and unpin a fence only if the current view type is normal.
v4:
Extend the "view type is normal" check for pin_fence as well.
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Ville Syrjala <ville.syrjala@linux.intel.com>
Signed-off-by: Vivek Kasireddy <vivek.kasireddy@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1446170078-20792-1-git-send-email-vivek.kasireddy@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 81358ca..6795df5 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2389,22 +2389,24 @@
* framebuffer compression. For simplicity, we always install
* a fence as the cost is not that onerous.
*/
- ret = i915_gem_object_get_fence(obj);
- if (ret == -EDEADLK) {
- /*
- * -EDEADLK means there are no free fences
- * no pending flips.
- *
- * This is propagated to atomic, but it uses
- * -EDEADLK to force a locking recovery, so
- * change the returned error to -EBUSY.
- */
- ret = -EBUSY;
- goto err_unpin;
- } else if (ret)
- goto err_unpin;
+ if (view.type == I915_GGTT_VIEW_NORMAL) {
+ ret = i915_gem_object_get_fence(obj);
+ if (ret == -EDEADLK) {
+ /*
+ * -EDEADLK means there are no free fences
+ * no pending flips.
+ *
+ * This is propagated to atomic, but it uses
+ * -EDEADLK to force a locking recovery, so
+ * change the returned error to -EBUSY.
+ */
+ ret = -EBUSY;
+ goto err_unpin;
+ } else if (ret)
+ goto err_unpin;
- i915_gem_object_pin_fence(obj);
+ i915_gem_object_pin_fence(obj);
+ }
dev_priv->mm.interruptible = true;
intel_runtime_pm_put(dev_priv);
@@ -2430,7 +2432,9 @@
ret = intel_fill_fb_ggtt_view(&view, fb, plane_state);
WARN_ONCE(ret, "Couldn't get view from plane state!");
- i915_gem_object_unpin_fence(obj);
+ if (view.type == I915_GGTT_VIEW_NORMAL)
+ i915_gem_object_unpin_fence(obj);
+
i915_gem_object_unpin_from_display_plane(obj, &view);
}