From: Sinclair Yeh <syeh@vmware.com>
Date: Fri, 2 Jun 2017 05:53:27 +0000 (+0200)
Subject: drm/vmwgfx: Make sure to update STDU when FB is updated
X-Git-Tag: v4.12-rc5~25^2^2~4
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=8a309c8a2d0619efe29ec652c163d6b89eff9f9f;p=linux.git

drm/vmwgfx: Make sure to update STDU when FB is updated

When a new FB is bound, we have to send an update command otherwise
the new FB may not be shown

Signed-off-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
---

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
index bad31bdf09b6..60ace30246cf 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
@@ -1355,6 +1355,11 @@ vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane,
 		DRM_ERROR("Failed to bind surface to STDU.\n");
 	else
 		crtc->primary->fb = plane->state->fb;
+
+	ret = vmw_stdu_update_st(dev_priv, stdu);
+
+	if (ret)
+		DRM_ERROR("Failed to update STDU.\n");
 }