Merge git://git.infradead.org/users/dwmw2/mtd-2.6.38

[mv-sheeva.git] / drivers / gpu / drm / nouveau / nv50_vm.c

diff --git a/drivers/gpu/drm/nouveau/nv50_vm.c b/drivers/gpu/drm/nouveau/nv50_vm.c
index 459ff08241e571400eb63e9e84c2cdae9a150bb7..6144156f255af02389775d78444cb56fd7f22fe6 100644 (file)
--- a/drivers/gpu/drm/nouveau/nv50_vm.c
+++ b/drivers/gpu/drm/nouveau/nv50_vm.c
@@ -169,7 +169,11 @@ nv50_vm_flush(struct nouveau_vm *vm)
 void
 nv50_vm_flush_engine(struct drm_device *dev, int engine)
 {
+       struct drm_nouveau_private *dev_priv = dev->dev_private;
+
+       spin_lock(&dev_priv->ramin_lock);
        nv_wr32(dev, 0x100c80, (engine << 16) | 1);
        if (!nv_wait(dev, 0x100c80, 0x00000001, 0x00000000))
                NV_ERROR(dev, "vm flush timeout: engine %d\n", engine);
+       spin_unlock(&dev_priv->ramin_lock);
 }