From: Thomas Hellstrom Subject: [PATCH] drm/vmwgfx: Set dmabuf_size when vmw_dmabuf_init is successful Date: Wed, 16 May 2018 08:02:58 +0200 Message-ID: <20180516060258.8190-1-thellstrom@vmware.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Sender: stable-owner@vger.kernel.org To: dri-devel@lists.freedesktop.org Cc: Deepak Rawat , stable@vger.kernel.org, Thomas Hellstrom List-Id: dri-devel@lists.freedesktop.org From: Deepak Rawat SOU primary plane prepare_fb hook depends upon dmabuf_size to pin up BO (and not call a new vmw_dmabuf_init) when a new fb size is same as current fb. This was changed in a recent commit which is causing page_flip to fail on VM with low display memory and multi-mon failure when cycle monitors from secondary display. Cc: # 4.14, 4.16 Fixes: 20fb5a635a0c ("drm/vmwgfx: Unpin the screen object backup buffer when not used") Signed-off-by: Deepak Rawat Reviewed-by: Sinclair Yeh Signed-off-by: Thomas Hellstrom --- drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c index 648f8127f65a..3d667e903beb 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c @@ -482,6 +482,8 @@ vmw_sou_primary_plane_prepare_fb(struct drm_plane *plane, return ret; } + vps->dmabuf_size = size; + /* * TTM already thinks the buffer is pinned, but make sure the * pin_count is upped. -- 2.14.3