CP_BRA_IF_CLEAR    96 drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxnv40.c #define CP_BRA_IF_CLEAR          0x00000080
CP_BRA_IF_CLEAR    86 drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxnv50.c #define CP_BRA_IF_CLEAR          0x00000080