drm/i915/overlay: Use VMA as the primary tracker for images

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471254551-25805-22-git-send-email-chris@chris-wilson.co.uk

diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c
index 90f3ab4..d930e3a 100644 (file)
--- a/drivers/gpu/drm/i915/intel_overlay.c
+++ b/drivers/gpu/drm/i915/intel_overlay.c
@@ -171,8 +171,8 @@ struct overlay_registers {
 struct intel_overlay {
        struct drm_i915_private *i915;
        struct intel_crtc *crtc;
-       struct drm_i915_gem_object *vid_bo;
-       struct drm_i915_gem_object *old_vid_bo;
+       struct i915_vma *vma;
+       struct i915_vma *old_vma;
        bool active;
        bool pfit_active;
        u32 pfit_vscale_ratio; /* shifted-point number, (1<<12) == 1.0 */
@@ -317,15 +317,17 @@ static void intel_overlay_release_old_vid_tail(struct i915_gem_active *active,
 {
        struct intel_overlay *overlay =
                container_of(active, typeof(*overlay), last_flip);
-       struct drm_i915_gem_object *obj = overlay->old_vid_bo;
+       struct i915_vma *vma;
 
-       i915_gem_track_fb(obj, NULL,
-                         INTEL_FRONTBUFFER_OVERLAY(overlay->crtc->pipe));
+       vma = fetch_and_zero(&overlay->old_vma);
+       if (WARN_ON(!vma))
+               return;
 
-       i915_gem_object_ggtt_unpin(obj);
-       i915_gem_object_put(obj);
+       i915_gem_track_fb(vma->obj, NULL,
+                         INTEL_FRONTBUFFER_OVERLAY(overlay->crtc->pipe));
 
-       overlay->old_vid_bo = NULL;
+       i915_gem_object_unpin_from_display_plane(vma->obj, &i915_ggtt_view_normal);
+       i915_vma_put(vma);
 }
 
 static void intel_overlay_off_tail(struct i915_gem_active *active,
@@ -333,15 +335,15 @@ static void intel_overlay_off_tail(struct i915_gem_active *active,
 {
        struct intel_overlay *overlay =
                container_of(active, typeof(*overlay), last_flip);
-       struct drm_i915_gem_object *obj = overlay->vid_bo;
+       struct i915_vma *vma;
 
        /* never have the overlay hw on without showing a frame */
-       if (WARN_ON(!obj))
+       vma = fetch_and_zero(&overlay->vma);
+       if (WARN_ON(!vma))
                return;
 
-       i915_gem_object_ggtt_unpin(obj);
-       i915_gem_object_put(obj);
-       overlay->vid_bo = NULL;
+       i915_gem_object_unpin_from_display_plane(vma->obj, &i915_ggtt_view_normal);
+       i915_vma_put(vma);
 
        overlay->crtc->overlay = NULL;
        overlay->crtc = NULL;
@@ -421,7 +423,7 @@ static int intel_overlay_release_old_vid(struct intel_overlay *overlay)
        /* Only wait if there is actually an old frame to release to
         * guarantee forward progress.
         */
-       if (!overlay->old_vid_bo)
+       if (!overlay->old_vma)
                return 0;
 
        if (I915_READ(ISR) & I915_OVERLAY_PLANE_FLIP_PENDING_INTERRUPT) {
@@ -744,6 +746,7 @@ static int intel_overlay_do_put_image(struct intel_overlay *overlay,
        struct drm_i915_private *dev_priv = overlay->i915;
        u32 swidth, swidthsw, sheight, ostride;
        enum pipe pipe = overlay->crtc->pipe;
+       struct i915_vma *vma;
 
        lockdep_assert_held(&dev_priv->drm.struct_mutex);
        WARN_ON(!drm_modeset_is_locked(&dev_priv->drm.mode_config.connection_mutex));
@@ -757,6 +760,8 @@ static int intel_overlay_do_put_image(struct intel_overlay *overlay,
        if (ret != 0)
                return ret;
 
+       vma = i915_gem_obj_to_ggtt_view(new_bo, &i915_ggtt_view_normal);
+
        ret = i915_gem_object_put_fence(new_bo);
        if (ret)
                goto out_unpin;
@@ -834,11 +839,11 @@ static int intel_overlay_do_put_image(struct intel_overlay *overlay,
        if (ret)
                goto out_unpin;
 
-       i915_gem_track_fb(overlay->vid_bo, new_bo,
+       i915_gem_track_fb(overlay->vma->obj, new_bo,
                          INTEL_FRONTBUFFER_OVERLAY(pipe));
 
-       overlay->old_vid_bo = overlay->vid_bo;
-       overlay->vid_bo = new_bo;
+       overlay->old_vma = overlay->vma;
+       overlay->vma = vma;
 
        intel_frontbuffer_flip(dev_priv, INTEL_FRONTBUFFER_OVERLAY(pipe));