[Nouveau] [Bug 94990] Latest 4.6rc4 kernel, no booting on gtx970

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94990

--- Comment #39 from Alexandre Courbot <gnurou at gmail.com> ---
Tried on a 4GB GM206 / 4.6.4, it passed without any issue:

[   12.410603] nouveau 0000:01:00.0: NVIDIA GM206 (1262f0a1)
[   12.493772] nouveau 0000:01:00.0: bios: version 84.06.01.0c.00
[   12.494306] nouveau 0000:01:00.0: disp: dcb 15 type 8 unknown
[   12.506916] nouveau 0000:01:00.0: fb: 4096 MiB GDDR5
[   12.512991] INST: ffbd5000
[   12.513137]  PGD: ffbcd000
[   12.526018]  WPR: ffba0000
[   12.528160] BLOB: ffbca000
[   12.532053] BLOB: ffbc9000
[   12.532180] [TTM] Zone  kernel: Available graphics memory: 1024460 kiB

... and then I could run glmark2 without any error.

Tried messing with the WPR address to make it invalid and see if I could get
the same error. It happens to be different:

[   31.729804] nouveau 0000:01:00.0: priv: GPC0: 419df4 00000000 (1b40820e)
[   31.729846] nouveau 0000:01:00.0: priv: GPC1: 419df4 00000000 (1b40820e)
[   31.729894] nouveau 0000:01:00.0: priv: GPC0: 505884 c0000000 (1a40820e)
[   31.729924] nouveau 0000:01:00.0: priv: GPC1: 50d884 c0000000 (1a40820e)
[   33.731990] nouveau 0000:01:00.0: timeout at
../drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c:1469/gf100_gr_init_ctxctl()!
[   33.732035] nouveau 0000:01:00.0: gr: init failed, -16

So not sure where this REGION_VIOLATION comes from. Guess I will need to ping
the fw people at NVIDIA...

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