---

yaml --- r: 345532 b: refs/heads/master c: 1daa892 h: refs/heads/master v: v3
git-mirror · Dec 5, 2012 · fcbbe87 · fcbbe87
1 parent f3e1615
commit fcbbe87
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Showing 4 changed files with 39 additions and 11 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5b07c66059313fc998d28cf6775fd1a8bbb034aa
+refs/heads/master: 1daa892c1df5c329375d791ca169db22f18e5c28
diff --git a/trunk/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/trunk/drivers/gpu/drm/exynos/exynos_drm_encoder.c
@@ -234,6 +234,39 @@ static void exynos_drm_encoder_commit(struct drm_encoder *encoder)
 	exynos_encoder->dpms = DRM_MODE_DPMS_ON;
 }
 
+void exynos_drm_encoder_complete_scanout(struct drm_framebuffer *fb)
+{
+	struct exynos_drm_encoder *exynos_encoder;
+	struct exynos_drm_overlay_ops *overlay_ops;
+	struct exynos_drm_manager *manager;
+	struct drm_device *dev = fb->dev;
+	struct drm_encoder *encoder;
+
+	/*
+	 * make sure that overlay data are updated to real hardware
+	 * for all encoders.
+	 */
+	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+		exynos_encoder = to_exynos_encoder(encoder);
+
+		/* if exynos was disabled, just ignor it. */
+		if (exynos_encoder->dpms > DRM_MODE_DPMS_ON)
+			continue;
+
+		manager = exynos_encoder->manager;
+		overlay_ops = manager->overlay_ops;
+
+		/*
+		 * wait for vblank interrupt
+		 * - this makes sure that overlay data are updated to
+		 *	real hardware.
+		 */
+		if (overlay_ops->wait_for_vblank)
+			overlay_ops->wait_for_vblank(manager->dev);
+	}
+}
+
+
 static void exynos_drm_encoder_disable(struct drm_encoder *encoder)
 {
 	struct drm_plane *plane;
@@ -505,14 +538,4 @@ void exynos_drm_encoder_plane_disable(struct drm_encoder *encoder, void *data)
 
 	if (overlay_ops && overlay_ops->disable)
 		overlay_ops->disable(manager->dev, zpos);
-
-	/*
-	 * wait for vblank interrupt
-	 * - this makes sure that hardware overlay is disabled to avoid
-	 * for the dma accesses to memory after gem buffer was released
-	 * because the setting for disabling the overlay will be updated
-	 * at vsync.
-	 */
-	if (overlay_ops && overlay_ops->wait_for_vblank)
-		overlay_ops->wait_for_vblank(manager->dev);
 }
diff --git a/trunk/drivers/gpu/drm/exynos/exynos_drm_encoder.h b/trunk/drivers/gpu/drm/exynos/exynos_drm_encoder.h
@@ -46,5 +46,6 @@ void exynos_drm_encoder_plane_mode_set(struct drm_encoder *encoder, void *data);
 void exynos_drm_encoder_plane_commit(struct drm_encoder *encoder, void *data);
 void exynos_drm_encoder_plane_enable(struct drm_encoder *encoder, void *data);
 void exynos_drm_encoder_plane_disable(struct drm_encoder *encoder, void *data);
+void exynos_drm_encoder_complete_scanout(struct drm_framebuffer *fb);
 
 #endif
diff --git a/trunk/drivers/gpu/drm/exynos/exynos_drm_fb.c b/trunk/drivers/gpu/drm/exynos/exynos_drm_fb.c
@@ -36,6 +36,7 @@
 #include "exynos_drm_fb.h"
 #include "exynos_drm_gem.h"
 #include "exynos_drm_iommu.h"
+#include "exynos_drm_encoder.h"
 
 #define to_exynos_fb(x)	container_of(x, struct exynos_drm_fb, fb)
 
@@ -85,6 +86,9 @@ static void exynos_drm_fb_destroy(struct drm_framebuffer *fb)
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
+	/* make sure that overlay data are updated before relesing fb. */
+	exynos_drm_encoder_complete_scanout(fb);
+
 	drm_framebuffer_cleanup(fb);
 
 	for (i = 0; i < ARRAY_SIZE(exynos_fb->exynos_gem_obj); i++) {