Patchwork [3.5.y.z,extended,stable] Patch "drm/vmwgfx: Fix hibernation device reset" has been added to staging queue

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Submitter Herton Ronaldo Krzesinski
Date Dec. 6, 2012, 3:25 a.m.
Message ID <>
Download mbox | patch
Permalink /patch/204123/
State New
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Herton Ronaldo Krzesinski - Dec. 6, 2012, 3:25 a.m.
This is a note to let you know that I have just added a patch titled

    drm/vmwgfx: Fix hibernation device reset

to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree 
which can be found at:;a=shortlog;h=refs/heads/linux-3.5.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.y.z tree, see



From b75471b5a50e11ff2055c80c87496c9167681918 Mon Sep 17 00:00:00 2001
From: Thomas Hellstrom <>
Date: Fri, 9 Nov 2012 10:05:57 +0100
Subject: [PATCH] drm/vmwgfx: Fix hibernation device reset
X-Extended-Stable: 3.5

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 <>
Signed-off-by: Dave Airlie <>
Signed-off-by: Herton Ronaldo Krzesinski <>
 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 3a4b15a..db50604 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -1102,6 +1102,11 @@  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.