This fixes hangs on GK208 which happen instantaneously on trying to use a geometry shader.

Signed-off-by: Ilia Mirkin imirkin@alum.mit.edu Cc: stable@vger.kernel.org # v3.14+ ---

ctxnvf0 also writes to these registers (although slightly diff values), so I think this is right. So I guess trap 4 is whatever this 406 subengine is...

drivers/gpu/drm/nouveau/core/engine/graph/ctxnv108.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnv108.c b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnv108.c index 48351b4..8de4a42 100644 --- a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnv108.c +++ b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnv108.c @@ -545,10 +545,12 @@ nv108_grctx_generate_mods(struct nvc0_graph_priv *priv, struct nvc0_grctx *info) mmio_list(0x408010, 0x80000000, 0, 0); mmio_list(0x419004, 0x00000000, 8, 1); mmio_list(0x419008, 0x00000000, 0, 0); + mmio_list(0x4064cc, 0x80000000, 0, 0); mmio_list(0x408004, 0x00000000, 8, 0); mmio_list(0x408008, 0x80000030, 0, 0); mmio_list(0x418808, 0x00000000, 8, 0); mmio_list(0x41880c, 0x80000030, 0, 0); + mmio_list(0x4064c8, 0x00c20200, 0, 0); mmio_list(0x418810, 0x80000000, 12, 2); mmio_list(0x419848, 0x10000000, 12, 2);