5 files changed, 32 insertions, 10 deletions

diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c
index 3e6c0f3ed592..ef9957dbac94 100644
--- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c
+++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c
@@ -510,9 +510,8 @@ static void update_cursor(struct drm_crtc *crtc)
                                         MDP4_DMA_CURSOR_BLEND_CONFIG_CURSOR_EN);
                 } else {
                         /* disable cursor: */
-                        mdp4_write(mdp4_kms, REG_MDP4_DMA_CURSOR_BASE(dma), 0);
-                        mdp4_write(mdp4_kms, REG_MDP4_DMA_CURSOR_BLEND_CONFIG(dma),
-                                        MDP4_DMA_CURSOR_BLEND_CONFIG_FORMAT(CURSOR_ARGB));
+                        mdp4_write(mdp4_kms, REG_MDP4_DMA_CURSOR_BASE(dma),
+                                        mdp4_kms->blank_cursor_iova);
                 }
 
                 /* and drop the iova ref + obj rev when done scanning out: */
@@ -574,11 +573,9 @@ static int mdp4_crtc_cursor_set(struct drm_crtc *crtc,
 
         if (old_bo) {
                 /* drop our previous reference: */
-                msm_gem_put_iova(old_bo, mdp4_kms->id);
-                drm_gem_object_unreference_unlocked(old_bo);
+                drm_flip_work_queue(&mdp4_crtc->unref_cursor_work, old_bo);
         }
 
-        crtc_flush(crtc);
         request_pending(crtc, PENDING_CURSOR);
 
         return 0;
diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c
index c740ccd1cc67..8edd531cb621 100644
--- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c
+++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c
@@ -70,12 +70,12 @@ irqreturn_t mdp4_irq(struct msm_kms *kms)
 
         VERB("status=%08x", status);
 
+        mdp_dispatch_irqs(mdp_kms, status);
+
         for (id = 0; id < priv->num_crtcs; id++)
                 if (status & mdp4_crtc_vblank(priv->crtcs[id]))
                         drm_handle_vblank(dev, id);
 
-        mdp_dispatch_irqs(mdp_kms, status);
-
         return IRQ_HANDLED;
 }
 
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:
diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h
index 66a4d31aec80..715520c54cde 100644
--- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h
+++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h
@@ -44,6 +44,10 @@ struct mdp4_kms {
         struct clk *lut_clk;
 
         struct mdp_irq error_handler;
+
+        /* empty/blank cursor bo to use when cursor is "disabled" */
+        struct drm_gem_object *blank_cursor_bo;
+        uint32_t blank_cursor_iova;
 };
 #define to_mdp4_kms(x) container_of(x, struct mdp4_kms, base)
 
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c
index 353d494a497f..f2b985bc2adf 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c
@@ -71,11 +71,11 @@ static void mdp5_irq_mdp(struct mdp_kms *mdp_kms)
 
         VERB("status=%08x", status);
 
+        mdp_dispatch_irqs(mdp_kms, status);
+
         for (id = 0; id < priv->num_crtcs; id++)
                 if (status & mdp5_crtc_vblank(priv->crtcs[id]))
                         drm_handle_vblank(dev, id);
-
-        mdp_dispatch_irqs(mdp_kms, status);
 }
 
 irqreturn_t mdp5_irq(struct msm_kms *kms)