1 files changed, 21 insertions, 0 deletions

diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c
index 272e707c9487..0bb4faa17523 100644
--- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c
+++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c
@@ -144,6 +144,10 @@ static void mdp4_preclose(struct msm_kms *kms, struct drm_file *file)
 static void mdp4_destroy(struct msm_kms *kms)
 {
         struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms));
+        if (mdp4_kms->blank_cursor_iova)
+                msm_gem_put_iova(mdp4_kms->blank_cursor_bo, mdp4_kms->id);
+        if (mdp4_kms->blank_cursor_bo)
+                drm_gem_object_unreference(mdp4_kms->blank_cursor_bo);
         kfree(mdp4_kms);
 }
 
@@ -372,6 +376,23 @@ struct msm_kms *mdp4_kms_init(struct drm_device *dev)
                 goto fail;
         }
 
+        mutex_lock(&dev->struct_mutex);
+        mdp4_kms->blank_cursor_bo = msm_gem_new(dev, SZ_16K, MSM_BO_WC);
+        mutex_unlock(&dev->struct_mutex);
+        if (IS_ERR(mdp4_kms->blank_cursor_bo)) {
+                ret = PTR_ERR(mdp4_kms->blank_cursor_bo);
+                dev_err(dev->dev, "could not allocate blank-cursor bo: %d\n", ret);
+                mdp4_kms->blank_cursor_bo = NULL;
+                goto fail;
+        }
+
+        ret = msm_gem_get_iova(mdp4_kms->blank_cursor_bo, mdp4_kms->id,
+                        &mdp4_kms->blank_cursor_iova);
+        if (ret) {
+                dev_err(dev->dev, "could not pin blank-cursor bo: %d\n", ret);
+                goto fail;
+        }
+
         return kms;
 
 fail: