commit 55e2a0f8b9cc87ec89579ff25da0942c4474163f
Author: Maxim Levitsky <maximlevitsky@gmail.com>
Date:   Mon Sep 19 01:07:22 2011 +0300

    HACK:
    
    This makes Diego Viola's GeForce 9500 GT not hate life after resume
    See https://bugs.freedesktop.org/show_bug.cgi?id=40630

diff --git a/drivers/gpu/drm/nouveau/nv50_mc.c b/drivers/gpu/drm/nouveau/nv50_mc.c
index e0a9c3f..831e49f 100644
--- a/drivers/gpu/drm/nouveau/nv50_mc.c
+++ b/drivers/gpu/drm/nouveau/nv50_mc.c
@@ -31,6 +31,12 @@
 int
 nv50_mc_init(struct drm_device *dev)
 {
+
+	/* HACK: makes Diego Viola's GeForce 9500 GT not hate life after
+		resume
+	*/
+	nv_mask(dev, 0x4008, 0x400000, 0x400000);
+
 	nv_wr32(dev, NV03_PMC_ENABLE, 0xFFFFFFFF);
 	return 0;
 }