From 9807216f585fc69a6cad3668414a2936a84444c8 Mon Sep 17 00:00:00 2001 From: Vivek Kasireddy Date: Thu, 29 Oct 2015 18:54:38 -0700 Subject: [PATCH] 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 Cc: Tvrtko Ursulin Reviewed-by: Ville Syrjala Signed-off-by: Vivek Kasireddy Link: http://patchwork.freedesktop.org/patch/msgid/1446170078-20792-1-git-send-email-vivek.kasireddy@intel.com Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/intel_display.c | 36 ++++++++++++++++++++---------------- 1 file changed, 20 insertions(+), 16 deletions(-) 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 @@ 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 (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 @@ static void intel_unpin_fb_obj(struct drm_framebuffer *fb, 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); } -- 2.7.4