Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756292Ab2KNGED (ORCPT ); Wed, 14 Nov 2012 01:04:03 -0500 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:55061 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754707Ab2KNFuZ (ORCPT ); Wed, 14 Nov 2012 00:50:25 -0500 Message-Id: <20121114053942.939457401@decadent.org.uk> User-Agent: quilt/0.60-1 Date: Wed, 14 Nov 2012 05:40:39 +0000 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Thomas Hellstrom , Brian Paul , Dmitry Torokhov , Dave Airlie Subject: [ 66/82] drm/vmwgfx: Fix hibernation device reset In-Reply-To: <20121114053933.726869752@decadent.org.uk> X-SA-Exim-Connect-IP: 2001:470:1f08:1539:21c:bfff:fe03:f805 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1510 Lines: 43 3.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: Thomas Hellstrom commit 95e8f6a21996c4cc2c4574b231c6e858b749dce3 upstream. The device would not reset properly when resuming from hibernation. Signed-off-by: Thomas Hellstrom Reviewed-by: Brian Paul Reviewed-by: Dmitry Torokhov Cc: linux-graphics-maintainer@vmware.com Signed-off-by: Dave Airlie Signed-off-by: Ben Hutchings --- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index ed3c1e7..2dd185e 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -1098,6 +1098,11 @@ static void vmw_pm_complete(struct device *kdev) struct drm_device *dev = pci_get_drvdata(pdev); struct vmw_private *dev_priv = vmw_priv(dev); + mutex_lock(&dev_priv->hw_mutex); + vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2); + (void) vmw_read(dev_priv, SVGA_REG_ID); + mutex_unlock(&dev_priv->hw_mutex); + /** * Reclaim 3d reference held by fbdev and potentially * start fifo. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/