[PATCH] drm/i915: Skip fence installation for objects with rotated views (v2)

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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).

Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Signed-off-by: Vivek Kasireddy <vivek.kasireddy@xxxxxxxxx>
---
 drivers/gpu/drm/i915/intel_display.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 52fb3f2..108c000 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2357,7 +2357,8 @@ intel_pin_and_fence_fb_obj(struct drm_plane *plane,
 	 * framebuffer compression.  For simplicity, we always install
 	 * a fence as the cost is not that onerous.
 	 */
-	ret = i915_gem_object_get_fence(obj);
+	if (obj->map_and_fenceable)
+		ret = i915_gem_object_get_fence(obj);
 	if (ret == -EDEADLK) {
 		/*
 		 * -EDEADLK means there are no free fences
-- 
2.4.3

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