| drm kern info: nouveau  [  PGRAPH][nouveau0] using external firmware
| drm kern error: nouveau E[  PGRAPH][nouveau0] failed to load fuc409c
| drm kern error: nouveau E[  DEVICE][nouveau0] failed to create 0x18000717, -22
| drm kern debug: nouveau T[  DEVICE][nouveau0] dec() == 21
| drm kern error: nouveau E[     DRM] failed to create 0x80000080, -22
| drm kern debug: nouveau T[      SW][nouveau0] dec() == 0
| drm kern debug: nouveau D[      SW][nouveau0] destroying

sys/external/bsd/drm2/dist/drm/nouveau/core/engine/graph/nouveau_engine_graph_nvc0.c:

    951 int
    952 nvc0_graph_init_ctxctl(struct nvc0_graph_priv *priv)
    953 {
    954         struct nvc0_graph_oclass *oclass = (void *)nv_object(priv)->oclass;
    955         struct nvc0_grctx_oclass *cclass = (void *)nv_engine(priv)->cclass;
    956         u32 r000260;
    957         int i;
    958 
    959         if (priv->firmware) {
    960                 /* load fuc microcode */
    961                 r000260 = nv_mask(priv, 0x000260, 0x00000001, 0x00000000);
    962                 nvc0_graph_init_fw(priv, 0x409000, &priv->fuc409c,
    963                                                    &priv->fuc409d);
    964                 nvc0_graph_init_fw(priv, 0x41a000, &priv->fuc41ac,
    965                                                    &priv->fuc41ad);

   1221 static int
   1222 nvc0_graph_ctor_fw(struct nvc0_graph_priv *priv, const char *fwname,
   1223                    struct nvc0_graph_fuc *fuc)
   1224 {
   1225         struct nouveau_device *device = nv_device(priv);
   1226         const struct firmware *fw;
   1227         char f[32];
   1228         int ret;
   1229
   1230         snprintf(f, sizeof(f), "nouveau/nv%02x_%s", device->chipset, fwname);
   1231         ret = request_firmware(&fw, f, nv_device_base(device));
   1232         if (ret) {
   1233                 snprintf(f, sizeof(f), "nouveau/%s", fwname);
   1234                 ret = request_firmware(&fw, f, nv_device_base(device));
   1235                 if (ret) {
   1236                         nv_error(priv, "failed to load %s\n", fwname);
   1237                         return ret;
   1238                 }
   1239         }

   36  cd /tmp
   38  mkdir t
   39  cd t
   41  wget --no-check-certificat https://raw.githubusercontent.com/imirkin/re-vp2/master/extract_firmware.py
   43  python2.7 extract_firmware.py
   44  wget  http://us.download.nvidia.com/XFree86/Linux-x86/340.32/NVIDIA-Linux-x86-340.32.run
   45  file NVIDIA-Linux-x86-340.32.run
   46  less  NVIDIA-Linux-x86-340.32.run
   47  sh NVIDIA-Linux-x86-340.32.run --extract-only
   49  ls -lt NVIDIA-Linux-x86-340.32
   50  less  NVIDIA-Linux-x86-340.32/LICENSE