Commit 0a90dc51 authored by Maarten Maathuis's avatar Maarten Maathuis Committed by Ben Skeggs
Browse files

drm/nv50: wait for pgraph to idle before unloading the context



This should fix the problem with gpu hangs people have had when closing
channels.
Signed-off-by: default avatarMaarten Maathuis <madman2003@gmail.com>
Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent fe5a64ac
......@@ -282,6 +282,7 @@ nv50_graph_unload_context(struct drm_device *dev)
return 0;
inst &= NV50_PGRAPH_CTXCTL_CUR_INSTANCE;
nouveau_wait_for_idle(dev);
nv_wr32(dev, 0x400500, fifo & ~1);
nv_wr32(dev, 0x400784, inst);
nv_wr32(dev, 0x400824, nv_rd32(dev, 0x400824) | 0x20);
......
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