[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

Martin Peres  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |MOVED

--- Comment #50 from Martin Peres  ---
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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #49 from asad78...@googlemail.com ---
Not sure if correct bug bu
lspci:
07:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 840M] (rev a2)
Subsystem: Hewlett-Packard Company Device 21a0
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at b500 (32-bit, non-prefetchable) [size=16M]
Memory at a000 (64-bit, prefetchable) [size=256M]
Memory at b000 (64-bit, prefetchable) [size=32M]
I/O ports at 5000 [size=128]
Expansion ROM at  [disabled]
Capabilities: [60] Power Management version 3
Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [78] Express Endpoint, MSI 00
Capabilities: [100] Virtual Channel
Capabilities: [250] Latency Tolerance Reporting
Capabilities: [258] L1 PM Substates
Capabilities: [128] Power Budgeting 
Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 
Capabilities: [900] #19
Kernel modules: nouveau

using rawhide, with nouveau skeggsb:master

insmod nouveau.ko runpm=0
sleep 10
rmmod nouveau.ko

dmesg:
[  154.072779] nouveau: module verification failed: signature and/or required
key missing - tainting kernel
[  154.186565] ACPI Warning: \_SB.PCI0.GFX0._DSM: Argument #4 type mismatch -
Found [Buffer], ACPI requires [Package] (20160108/nsarguments-95)
[  154.186825] ACPI Warning: \_SB.PCI0.GFX0._DSM: Argument #4 type mismatch -
Found [Buffer], ACPI requires [Package] (20160108/nsarguments-95)
[  154.187853] i915 :00:02.0: optimus capabilities: enabled, status dynamic
power, hda bios codec supported
[  154.187972] ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20160108/nsarguments-95)
[  154.188213] ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20160108/nsarguments-95)
[  154.189673] pci :07:00.0: optimus capabilities: enabled, status dynamic
power, hda bios codec supported
[  154.189681] VGA switcheroo: detected Optimus DSM method \_SB_.PCI0.PEG0.PEGP
handle
[  154.189777] nouveau :07:00.0: enabling device (0006 -> 0007)
[  154.190144] nouveau :07:00.0: NVIDIA GM108 (118010a2)
[  154.209966] nouveau :07:00.0: bios: version 82.08.14.00.0e
[  154.301465] nouveau :07:00.0: priv: HUB0: 6013d4 5723 (1d408200)
[  154.301583] nouveau :07:00.0: fb: 2048 MiB DDR3
[  154.301920] nouveau :07:00.0: priv: HUB0: 10ecc0  (1d40822c)
[  154.339347] vga_switcheroo: enabled
[  154.341211] [TTM] Zone  kernel: Available graphics memory: 4036698 kiB
[  154.341213] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
[  154.341215] [TTM] Initializing pool allocator
[  154.341267] [TTM] Initializing DMA pool allocator
[  154.341487] nouveau :07:00.0: DRM: VRAM: 2048 MiB
[  154.341490] nouveau :07:00.0: DRM: GART: 1048576 MiB
[  154.341493] nouveau :07:00.0: DRM: Pointer to TMDS table invalid
[  154.341495] nouveau :07:00.0: DRM: DCB version 4.0
[  154.341497] nouveau :07:00.0: DRM: Pointer to flat panel table invalid
[  154.403182] nouveau :07:00.0: fifo: write fault at 102000 engine 05
[BAR2] client 08 [HOST_CPU_NB] reason 02 [PTE] on channel -1 [007fd76000
unknown]
[  154.466319] nouveau :07:00.0: fifo: read fault at 10 engine 04
[BAR1] client 07 [HOST_CPU] reason 00 [PDE] on channel -1 [007fd5d000 unknown]
[  154.466333] nouveau :07:00.0: fifo: PBDMA1: 8006 [PBPTR PBENTRY
SIGNATURE] ch 0 [007fb84000 DRM] subc 0 mthd  data 
[  154.466439] nouveau :07:00.0: fifo: PBDMA1: 0082 [PBPTR DEVICE] ch 0
[007fb84000 DRM] subc 7 mthd 3bec data 03000302
[  154.466458] nouveau :07:00.0: fifo: read fault at fffebf5000 engine 0b
[HOST4] client 06 [HOST] reason 03 [VA_LIMIT_VIOLATION] on channel 0
[007fb84000 DRM]
[  154.492673] nouveau :07:00.0: fifo: PBDMA0: 8002 [PBPTR SIGNATURE]
ch 0 [007fb84000 DRM] subc 7 mthd 3ffc data dfff
[  154.492695] nouveau :07:00.0: fifo: read fault at 10 engine 04
[BAR1] client 07 [HOST_CPU] reason 0c [UNSUPPORTED_KIND] on channel -1
[007fd5d000 unknown]
[  154.492705] nouveau :07:00.0: fifo: PBDMA0: 0002 [PBPTR] ch 0
[007fb84000 DRM] subc 0 mthd  data 
[  154.492720] nouveau :07:00.0: fifo: read fault at fffebf5000 engine 07
[HOST0] client 06 [HOST] reason 03 [VA_LIMIT_VIOLATION] on channel 0
[007fb84000 DRM]
[  154.492966] nouveau :07:00.0: DRM: MM: using COPY for buffer copies
[  154.492977] [drm] Initialized nouveau 1.3.1 20120801 for :07:00.0 on
minor 1
[  154.492984] nouveau :07:00.0: fifo: write fault at 00 engine 04
[BAR1] client 08 [HOST_CPU_NB] reason 0c [UNSUPPORTED_KIND] on channel -1
[007fd5d000 unknown]
[  164.555908] nouveau :07:00.0: fifo: write fault at 00 engine 04
[BAR1] client 08 [HOST_CPU_NB] reason 0c [UNSUPPORTED_KIND] on channel -1
[007fd5d000 unknown]
[  

[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #48 from Marco Trevisan (Treviño)  ---
Nothing particular.
Enabling debug option, when running glxgears (which indeed gets a speedup) I
just get things such as:

[39145.588483] nouveau: DRM::0002: suspend children...
[39145.588486] nouveau: DRM::0002: suspend running...
[39145.588488] nouveau: DRM::0002: suspend completed in 3us
[39145.588491] nouveau: DRM::0080: suspend running...
[39146.089636] nouveau: DRM::0080: suspend completed in 501355us
[39146.089638] nouveau: DRM::: suspend running...
[39146.089638] nouveau: DRM::: suspend completed in 501363us

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #46 from Marco Trevisan (Treviño)  ---
Created attachment 123084
  --> https://bugs.freedesktop.org/attachment.cgi?id=123084=edit
kernel 4.4 - dmesg: 950MX SMF 108 path

Trying the patch by SMF gives out more or less the same output:

[34924.970827] pci :02:00.0: optimus capabilities: enabled, status dynamic
power, hda bios codec supported
[34924.970830] VGA switcheroo: detected Optimus DSM method \_SB_.PCI0.PEG2.PEGP
handle
[34924.970935] nouveau :02:00.0: NVIDIA GM108 (1180d0a2)
[34924.995153] nouveau :02:00.0: bios: version 82.08.57.00.22
[34925.039282] nouveau :02:00.0: fb: 2048 MiB DDR3
[34925.039291] nouveau :02:00.0: priv: HUB0: 1200a0 0001 (19408217)
[34925.039333] nouveau :02:00.0: priv: HUB0: 10ecc0  (1e40822c)
[34926.318695] vga_switcheroo: enabled
[34926.318863] [TTM] Zone  kernel: Available graphics memory: 16119644 kiB
[34926.318880] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
[34926.318881] [TTM] Initializing pool allocator
[34926.318892] [TTM] Initializing DMA pool allocator
[34926.318899] nouveau :02:00.0: DRM: VRAM: 2048 MiB
[34926.318900] nouveau :02:00.0: DRM: GART: 1048576 MiB
[34926.318902] nouveau :02:00.0: DRM: Pointer to TMDS table invalid
[34926.318904] nouveau :02:00.0: DRM: DCB version 4.0
[34926.318905] nouveau :02:00.0: DRM: Pointer to flat panel table invalid
[34926.435387] nouveau :02:00.0: DRM: MM: using COPY for buffer copies
[34926.435394] [drm] Initialized nouveau 1.3.1 20120801 for :02:00.0 on
minor 

See also attached dmesg

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

Marco Trevisan (Treviño)  changed:

   What|Removed |Added

 Attachment #123084|kernel 4.4 - dmesg: 950MX   |kernel 4.4 - dmesg: 950MX
description|SMF 108 path|SMF 108 patch
 Attachment #123084|dmesg-950MX-SMF-118-patch.l |dmesg-950MX-SMF-108-patch.l
   filename|og  |og

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #40 from Andrey Borzenkov  ---
Using current kernel.org git as of dd36d7393d6310b0c1adefb22fba79c3cf8a577c and
adding 0x118 to select 0x117 driver I get

[   67.595247] nouveau: module verification failed: signature and/or required
key missing - tainting kernel
[   67.601091] MXM: GUID detected in BIOS
[   67.601144] ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20150818/nsarguments-95)
[   67.601182] ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20150818/nsarguments-95)
[   67.601330] pci :03:00.0: optimus capabilities: enabled, status dynamic
power, hda bios codec supported
[   67.601331] VGA switcheroo: detected Optimus DSM method \_SB_.PCI0.RP05.PEGP
handle
[   67.601380] nouveau :03:00.0: enabling device (0006 -> 0007)
[   67.601421] nouveau :03:00.0: NVIDIA GM107 (118000a2)
[   67.614439] nouveau :03:00.0: bios: version 82.08.18.00.2a
[   67.698727] nouveau :03:00.0: fb: 2048 MiB DDR3
[   67.698759] nouveau :03:00.0: priv: HUB0: 6013d4 5730 (1b408200)
[   67.698795] nouveau :03:00.0: priv: HUB0: 10ecc0  (1840822c)
[   68.975809] vga_switcheroo: enabled
[   68.975924] [TTM] Zone  kernel: Available graphics memory: 4031282 kiB
[   68.975925] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
[   68.975936] [TTM] Initializing pool allocator
[   68.975940] [TTM] Initializing DMA pool allocator
[   68.975950] nouveau :03:00.0: DRM: VRAM: 2048 MiB
[   68.975951] nouveau :03:00.0: DRM: GART: 1048576 MiB
[   68.975953] nouveau :03:00.0: DRM: Pointer to TMDS table invalid
[   68.975955] nouveau :03:00.0: DRM: DCB version 4.0
[   68.975956] nouveau :03:00.0: DRM: Pointer to flat panel table invalid
[   69.132692] nouveau :03:00.0: DRM: MM: using COPY for buffer copies
[   69.132701] [drm] Initialized nouveau 1.3.0 20120801 for :03:00.0 on
minor 1

/dev/dri nodes are correctly created for a second card. Unfortunately attempt
to actually run something on secondary GPU results in

[   184.755] (II) [drm] nouveau interface version: 1.3.0
[   184.755] (EE) Unknown chipset: NV118

While running up to date kernel is easy, getting up to date Xorg is probably
more challenging (I'm writing this on Ubuntu 14.04). But kernel side looks
promising. Please let me know if you need any additional logs from nouveau or
nVidia driver.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #41 from Ilia Mirkin  ---
(In reply to Andrei Borzenkov from comment #40)
> /dev/dri nodes are correctly created for a second card. Unfortunately
> attempt to actually run something on secondary GPU results in
> 
> [   184.755] (II) [drm] nouveau interface version: 1.3.0
> [   184.755] (EE) Unknown chipset: NV118

The nouveau DDX won't do anything useful for maxwell. Use the modesetting
driver. Do note that there are known problems with GLAMOR.

But chances are there are no outputs on the GM108 anyways, so that won't be an
issue.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #42 from Andrei Borzenkov  ---
(In reply to Ilia Mirkin from comment #41)
> Use the modesetting driver.

Does not work - I do not get any output (but as said, I have quite dated Xorg).
Anyway, the whole point of Optimus systems is to use discrete GPU for hardware
acceleration; using generic driver seems to defeat it ...

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #43 from Ilia Mirkin  ---
(In reply to Andrei Borzenkov from comment #42)
> (In reply to Ilia Mirkin from comment #41)
> > Use the modesetting driver.
> 
> Does not work - I do not get any output (but as said, I have quite dated
> Xorg). Anyway, the whole point of Optimus systems is to use discrete GPU for
> hardware acceleration; using generic driver seems to defeat it ...

How so?

With a modern Xorg you should be able to do 3 things:

(a) use modesetting + glamor on any hardware with libGL support to get X
operation acceleration [which is not something you care about since you're not
going to use the GM108 as a primary]
(b) use xrandr-based gpu offloading to get DRI2 offloading with DRI_PRIME=1
(c) use DRI3-based offloading with DRI_PRIME=1 assuming your intel ddx has that
enabled

Note how nowhere in there is there any mention of a nouveau ddx.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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--- Comment #38 from Andrey Borzenkov  ---
There is no gm100.c anymore in nouveau tree. Are any patches available that we
could test? If it matters, primary use case is bumblebee, so just as rendering
engine.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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--- Comment #39 from Ilia Mirkin  ---
http://cgit.freedesktop.org/~darktama/nouveau/tree/drm/nouveau/nvkm/engine/device/base.c#n2461

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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--- Comment #37 from martin martin98239...@yahoo.de ---
Hi,
I´m having exactly the same issue here on a Dell E5450 with Intel HD5500 and
Nvidia GeForce 830M. First on Ubuntu, I also tried on Arch with Kernel 4.1.2
from the Testing Repo -- No change so far. At bootup I still see Nouveau
errors complaining about an unknown Maxwell chipset. 

I´m not a coder but if there are any logfiles or some terminal commands I can
try to contribute I´m happy to help!

Martin

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #36 from SMF smf.li...@ntlworld.com ---
Interesting that the GM108 (0x118) appears to be not included in the reference
headers supplied recently by Nvidia.

ref:

github.com/kfractal/nouveau/commit/0d942ce1fd1c0eaf70cdb6bf8633e982f0fe1922

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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--- Comment #35 from SMF smf.li...@ntlworld.com ---
Created attachment 116199
  -- https://bugs.freedesktop.org/attachment.cgi?id=116199action=edit
Kernel 4.1-rc6 (with 0x118 added to gm100.c)

Results with kernel 4.1-rc6.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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--- Comment #34 from SMF smf.li...@ntlworld.com ---
Created attachment 116031
  -- https://bugs.freedesktop.org/attachment.cgi?id=116031action=edit
kernel 4.1-rc5 nouveau driver with patches applied

For interest tested patches against kernel 4.1-rc5 (with nouveau debug on).

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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--- Comment #33 from SMF smf.li...@ntlworld.com ---
Created attachment 115969
  -- https://bugs.freedesktop.org/attachment.cgi?id=115969action=edit
kernel 4.0.4 nouveau driver with patches applied

Ben,

Applying the two patches you suggested allows the GM108 to initialise and
calculate the correct VRAM size (see attached log from 4.0.4 kernel).

thanks
Stuart.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #30 from Ben Skeggs skeg...@gmail.com ---
(In reply to SMF from comment #27)
 I have noticed that if the nouveau module is removed and re-added the second
 instance calculated the VRAM size correctly:
 
 modprobe nouveau;rmmod nouveau;modprobe nouveau
Can you please grab a mmiotrace of attempting to load nouveau the first time? 
Perhaps also grab the second time too for comparison.

Thanks,
Ben.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #31 from Ben Skeggs skeg...@gmail.com ---
(In reply to Ben Skeggs from comment #30)
 (In reply to SMF from comment #27)
  I have noticed that if the nouveau module is removed and re-added the second
  instance calculated the VRAM size correctly:
  
  modprobe nouveau;rmmod nouveau;modprobe nouveau
 Can you please grab a mmiotrace of attempting to load nouveau the first
 time?  Perhaps also grab the second time too for comparison.
 
 Thanks,
 Ben.

Also, another thing worth trying in the meantime is adding
nouveau.config=NvForcePost=1 to your kernel config options.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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--- Comment #32 from Ben Skeggs skeg...@gmail.com ---
(In reply to Ben Skeggs from comment #31)
 (In reply to Ben Skeggs from comment #30)
  (In reply to SMF from comment #27)
   I have noticed that if the nouveau module is removed and re-added the 
   second
   instance calculated the VRAM size correctly:
   
   modprobe nouveau;rmmod nouveau;modprobe nouveau
  Can you please grab a mmiotrace of attempting to load nouveau the first
  time?  Perhaps also grab the second time too for comparison.
  
  Thanks,
  Ben.
 
 Also, another thing worth trying in the meantime is adding
 nouveau.config=NvForcePost=1 to your kernel config options.

Even better, try this commit (and the previous one):

http://cgit.freedesktop.org/~darktama/nouveau/commit/?id=cf5c2a749912102055844b51a40b3ef64210afe6

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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--- Comment #29 from claus ch...@gmx.de ---
nvidia just released a 940m Linux driver:
http://www.geforce.com/drivers/results/83686

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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--- Comment #28 from Emil Velikov emil.l.veli...@gmail.com ---
Small side note: the negative amount of ram as hex reads as 0xBADF3000.
Although what makes me curious is why PBUS (or the equivalent sub-device for
this chipset) does not produce a warning/intr.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #27 from SMF smf.li...@ntlworld.com ---
I have noticed that if the nouveau module is removed and re-added the second
instance calculated the VRAM size correctly:

modprobe nouveau;rmmod nouveau;modprobe nouveau

Apr  2 16:15:20 Mars kernel: [   95.443268] ACPI Warning: \_SB_.PCI0.GFX0._DSM:
Argument #4 type mismatch - Found [Buffer], ACPI requires [Package]
(20141107/nsarguments-95)
Apr  2 16:15:20 Mars kernel: [   95.443303] ACPI Warning: \_SB_.PCI0.GFX0._DSM:
Argument #4 type mismatch - Found [Buffer], ACPI requires [Package]
(20141107/nsarguments-95)
Apr  2 16:15:20 Mars kernel: [   95.443400] i915 :00:02.0: optimus
capabilities: enabled, status dynamic power, hda bios codec supported
Apr  2 16:15:20 Mars kernel: [   95.443416] ACPI Warning:
\_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI
requires [Package] (20141107/nsarguments-95)
Apr  2 16:15:20 Mars kernel: [   95.443438] ACPI Warning:
\_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI
requires [Package] (20141107/nsarguments-95)
Apr  2 16:15:20 Mars kernel: [   95.443507] pci :03:00.0: optimus
capabilities: enabled, status dynamic power, hda bios codec supported
Apr  2 16:15:20 Mars kernel: [   95.443508] VGA switcheroo: detected Optimus
DSM method \_SB_.PCI0.RP05.PEGP handle
Apr  2 16:15:20 Mars kernel: [   95.443532] nouveau :03:00.0: enabling
device (0006 - 0007)
Apr  2 16:15:20 Mars kernel: [   95.443681] nouveau  [  DEVICE][:03:00.0]
BOOT0  : 0x118010a2
Apr  2 16:15:20 Mars kernel: [   95.443683] nouveau  [  DEVICE][:03:00.0]
Chipset: GM107 (NV118)
Apr  2 16:15:20 Mars kernel: [   95.443685] nouveau  [  DEVICE][:03:00.0]
Family : NV110
Apr  2 16:15:20 Mars kernel: [   95.447783] nouveau  [   VBIOS][:03:00.0]
using image from ACPI
Apr  2 16:15:20 Mars kernel: [   95.447821] nouveau  [   VBIOS][:03:00.0]
BIT signature found
Apr  2 16:15:20 Mars kernel: [   95.447823] nouveau  [   VBIOS][:03:00.0]
version 82.08.13.00.1c
Apr  2 16:15:20 Mars kernel: [   95.448092] nouveau  [ PMC][:03:00.0]
MSI interrupts enabled
Apr  2 16:15:20 Mars kernel: [   95.448145] nouveau  [ PFB][:03:00.0]
RAM type: DDR3
Apr  2 16:15:20 Mars kernel: [   95.448147] nouveau  [ PFB][:03:00.0]
RAM size: -1159778304 MiB
Apr  2 16:15:20 Mars kernel: [   95.448148] nouveau  [ PFB][:03:00.0]  
 ZCOMP: 0 tags
Apr  2 16:15:20 Mars kernel: [   95.486566] nouveau  [  PTHERM][:03:00.0]
FAN control: none / external
Apr  2 16:15:20 Mars kernel: [   95.486579] nouveau  [  PTHERM][:03:00.0]
internal sensor: no
Apr  2 16:15:20 Mars kernel: [   95.486618] nouveau  [ CLK][:03:00.0]
07: core 405 MHz memory 810 MHz 
Apr  2 16:15:20 Mars kernel: [   95.486674] nouveau  [ CLK][:03:00.0]
0a: core 270-1124 MHz memory 1600 MHz 
Apr  2 16:15:20 Mars kernel: [   95.486746] nouveau  [ CLK][:03:00.0]
0f: core 270-1124 MHz memory 2002 MHz 
Apr  2 16:15:20 Mars kernel: [   95.486874] nouveau  [ CLK][:03:00.0]
--: core 13 MHz  
Apr  2 16:15:20 Mars kernel: [   95.517016] nouveau  [  PGRAPH][:03:00.0]
using external firmware
Apr  2 16:15:20 Mars kernel: [   95.517393] request_firmware returned 0
(0xf15e5a84 'nouveau/nv118_fuc409c' 0xf2661864)
Apr  2 16:15:20 Mars kernel: [   95.517467] request_firmware returned 0
(0xf15e5a84 'nouveau/nv118_fuc409d' 0xf2661864)
Apr  2 16:15:20 Mars kernel: [   95.517658] request_firmware returned 0
(0xf15e5a84 'nouveau/nv118_fuc41ac' 0xf2661864)
Apr  2 16:15:20 Mars kernel: [   95.517727] request_firmware returned 0
(0xf15e5a84 'nouveau/nv118_fuc41ad' 0xf2661864)
Apr  2 16:15:20 Mars kernel: [   95.518153] vga_switcheroo: enabled
Apr  2 16:15:20 Mars kernel: [   95.518218] [TTM] Zone  kernel: Available
graphics memory: 414084 kiB
Apr  2 16:15:20 Mars kernel: [   95.518219] [TTM] Zone highmem: Available
graphics memory: 4098824 kiB
Apr  2 16:15:20 Mars kernel: [   95.518220] [TTM] Initializing pool allocator
Apr  2 16:15:20 Mars kernel: [   95.518226] nouveau  [ DRM] VRAM:
-1159778304 MiB
Apr  2 16:15:20 Mars kernel: [   95.518227] nouveau  [ DRM] GART: 1048576
MiB
Apr  2 16:15:20 Mars kernel: [   95.518231] nouveau  [ DRM] DCB version 4.0
Apr  2 16:15:22 Mars kernel: [   97.537378] nouveau  [ DRM] MM: using COPY
for buffer copies
Apr  2 16:15:22 Mars kernel: [   97.537398] [drm] Initialized nouveau 1.2.1
20120801 for :03:00.0 on minor 1
Apr  2 16:15:27 Mars kernel: [  102.539882] ACPI Warning:
\_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI
requires [Package] (20141107/nsarguments-95)
Apr  2 16:15:27 Mars kernel: [  102.540090] ACPI: \_SB_.PCI0.RP05.PEGP: failed
to evaluate _DSM
Apr  2 16:15:27 Mars kernel: [  102.540099] ACPI Warning:
\_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI
requires [Package] (20141107/nsarguments-95)
Apr  2 16:15:41 Mars kernel: [  117.332569] 

[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #25 from claus ch...@gmx.de ---
@Ilia ++

would it be any help for you if I provide a ssh access to a 940m notebook (i5
5200U) with any 64bit Linux for testing?

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #23 from SMF smf.li...@ntlworld.com ---
(In reply to SMF from comment #21)
 Using cpu-z on windows the graphics tab shows the Intel device as having 4GB
 and the Nvidia devices is reported as 1GB.

The literature that came with the laptop suggests that the VRAM is 4 GB (NVIDIA
GT840M 4 GB) so I think the answer is YES. My orginal hesitation stems from the
fact that the intel drm is reporting 2GB:

[0.669881] Linux agpgart interface v0.103
[0.669993] [drm] Initialized drm 1.1.0 20060810
[0.670484] [drm] Memory usable by graphics device = 2048M
[0.670569] [drm] Replacing VGA console driver
[0.671121] Console: switching to colour dummy device 80x25
[0.689829] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).

That may be a miscalculion/limitation for this system. Could this be a
consequence of this systems Intel/Nvidia hybrid setup?

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #24 from SMF smf.li...@ntlworld.com ---
(In reply to SMF from comment #23)
 (In reply to SMF from comment #21)
  Using cpu-z on windows the graphics tab shows the Intel device as having 4GB
  and the Nvidia devices is reported as 1GB.
 
 The literature that came with the laptop suggests that the VRAM is 4 GB
 (NVIDIA GT840M 4 GB) so I think the answer is YES. My orginal hesitation
 stems from the fact that the intel drm is reporting 2GB:
 
 [0.669881] Linux agpgart interface v0.103
 [0.669993] [drm] Initialized drm 1.1.0 20060810
 [0.670484] [drm] Memory usable by graphics device = 2048M
 [0.670569] [drm] Replacing VGA console driver
 [0.671121] Console: switching to colour dummy device 80x25
 [0.689829] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
 
 That may be a miscalculion/limitation for this system. Could this be a
 consequence of this systems Intel/Nvidia hybrid setup?

Does the fact that my kernel and os are built for 32bit pae limit the drm vram
to less than that physically present i.e. limited to 2G in this case?

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #22 from SMF smf.li...@ntlworld.com ---
For what it is worth using demmio I now have the firmware from the
mmiotrace.log.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #15 from Ilia Mirkin imir...@alum.mit.edu ---
[26833.396432] nouveau D[ PFB][:07:00.0] 0x100800: 0x0001
[26833.396435] nouveau D[ PFB][:07:00.0] parts 0x0001 mask
0x
[26833.396447] nouveau E[PBUS][:07:00.0] MMIO read of 0x FAULT
at 0x6013d4 [ IBUS ]
[26833.396448] nouveau D[ PFB][:07:00.0] 0: mem_amount 0xbadf3000

Both of you have basically the same thing. SMF: *please* stop filtering stuff
out... I know you think you're helping, but in reality, it just makes
everything more complicated.

The 0xbadf3000 is in response to the mmio error, but I'm a bit surprised that
it's getting read from that register... should have been 0x11020c. Very odd...
Perhaps the error decoding logic is off.

Either way, we'll need a mmiotrace to work this out.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #14 from EmilStephan emil.step...@t-online.de ---
Comment on attachment 114551
  -- https://bugs.freedesktop.org/attachment.cgi?id=114551
excerpt lspci -v and /v/l/m

This is a GM108 on a HP Envy17 j145ng.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #20 from Ilia Mirkin imir...@alum.mit.edu ---
That trace is interesting...

[0] 72.213698 MMIO32 R 0x00 0x118010a2 PMC.ID = { STEPPING = 0xa2 |
DEVICE_ID = 0x1 | CHIPSET = GM108 | FOUNDRY = TSMC }
[0] 72.213703 MMIO32 R 0x100800 0x0001 PFFB.PART_CONFIG = { PART_COUNT =
0x1 | MEM_SPLIT_PART = 0 }
[0] 72.213708 MMIO32 R 0x11020c 0x1000 PBFB[0].MEM_AMOUNT = 0x1
[0] 72.213712 MMIO32 R 0x100800 0x0001 PFFB.PART_CONFIG = { PART_COUNT =
0x1 | MEM_SPLIT_PART = 0 }
[0] 72.213720 MMIO32 R 0x10f590 0x0901 PBFB_BROADCAST+0x590 = 0x901
[0] 72.213726 MMIO32 R 0x101000 0x80400092 PSTRAPS.STRAPS0_PRIMARY = { VALUE =
{ PCI_SUB_BIOS | RAMCFG = 0x4 | CRYSTAL = 0 | DEVICE_ID_0_3 = 0 |
 BAR1_SIZE = 64MB | ROM_TYPE = SPI | FP_CONFIG = 0 | DEVICE_ID_4 = 0 |
DEVICE_ID_5 = 0 | 0x80 } | OVERRIDE_ENABLE }

So this suggests that you (SMF) have 4GB of VRAM. Is that correct?

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #21 from SMF smf.li...@ntlworld.com ---
Using cpu-z on windows the graphics tab shows the Intel device as having 4GB
and the Nvidia devices is reported as 1GB.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=89558

SMF smf.li...@ntlworld.com changed:

   What|Removed |Added

 Attachment #114543|0   |1
is obsolete||
 Attachment #114553|0   |1
is obsolete||
 Attachment #114557|0   |1
is obsolete||

--- Comment #19 from SMF smf.li...@ntlworld.com ---
Created attachment 114560
  -- https://bugs.freedesktop.org/attachment.cgi?id=114560action=edit
nvidia-smi mmiotrace

herewith nvidia driver mmiotrace using nvidia-smi as trigger.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=89558

Ilia Mirkin imir...@alum.mit.edu changed:

   What|Removed |Added

 Attachment #114560|text/plain  |application/octet-stream
  mime type||

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #12 from SMF smf.li...@ntlworld.com ---
On the question of 3D Accelerator or VGA compatible controller lspci reports it
as a 3D controller:

03:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 840M] (rev a2)
Subsystem: Lenovo Device 380d
Flags: bus master, fast devsel, latency 0, IRQ 47
Memory at c200 (32-bit, non-prefetchable) [size=16M]
Memory at b000 (64-bit, prefetchable) [size=256M]
Memory at c000 (64-bit, prefetchable) [size=32M]
I/O ports at 3000 [size=128]
Expansion ROM at ignored [disabled]
Capabilities: [60] Power Management version 3
Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [78] Express Endpoint, MSI 00
Capabilities: [100] Virtual Channel
Capabilities: [250] Latency Tolerance Reporting
Capabilities: [258] L1 PM Substates
Capabilities: [128] Power Budgeting ?
Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 ?
Capabilities: [900] #19
Kernel driver in use: nouveau

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=89558

SMF smf.li...@ntlworld.com changed:

   What|Removed |Added

 Attachment #114524|0   |1
is obsolete||
 Attachment #114534|0   |1
is obsolete||
 Attachment #114537|0   |1
is obsolete||
 Attachment #114538|0   |1
is obsolete||

--- Comment #11 from SMF smf.li...@ntlworld.com ---
Created attachment 114543
  -- https://bugs.freedesktop.org/attachment.cgi?id=114543action=edit
filtered syslog

with the nvidiafb out of the way the git nouveau driver is now functional. The
dmesg output itself is full of the error messages so I have attached my debug
filtered syslog file instead. Below is my info/notice/warning data filtered
from syslog showing the general startup information from the nouveau module.

Mar 23 07:29:15 Mars kernel: [0.00] Kernel command line:
BOOT_IMAGE=/vmlinuz-3.19.2T ro root=/dev/sda7 video.use_native_backlight=1
nouveau.debug=debug
Mar 23 07:29:15 Mars kernel: [3.111900] nouveau :03:00.0: enabling
device (0006 - 0007)
Mar 23 07:29:15 Mars kernel: [3.112067] nouveau  [  DEVICE][:03:00.0]
BOOT0  : 0x118010a2
Mar 23 07:29:15 Mars kernel: [3.112069] nouveau  [  DEVICE][:03:00.0]
Chipset: GM107 (NV118)
Mar 23 07:29:15 Mars kernel: [3.112071] nouveau  [  DEVICE][:03:00.0]
Family : NV110
Mar 23 07:29:15 Mars kernel: [3.120871] nouveau  [   VBIOS][:03:00.0]
using image from ACPI
Mar 23 07:29:15 Mars kernel: [3.120935] nouveau  [   VBIOS][:03:00.0]
BIT signature found
Mar 23 07:29:15 Mars kernel: [3.120939] nouveau  [   VBIOS][:03:00.0]
version 82.08.13.00.1c
Mar 23 07:29:15 Mars kernel: [3.121246] nouveau  [ PMC][:03:00.0]
MSI interrupts enabled
Mar 23 07:29:15 Mars kernel: [3.121306] nouveau  [ PFB][:03:00.0]
RAM type: DDR3
Mar 23 07:29:15 Mars kernel: [3.121308] nouveau  [ PFB][:03:00.0]
RAM size: -1159778304 MiB
Mar 23 07:29:15 Mars kernel: [3.121310] nouveau  [ PFB][:03:00.0]  
 ZCOMP: 0 tags
Mar 23 07:29:15 Mars kernel: [3.160212] nouveau  [  PTHERM][:03:00.0]
FAN control: none / external
Mar 23 07:29:15 Mars kernel: [3.160227] nouveau  [  PTHERM][:03:00.0]
internal sensor: no
Mar 23 07:29:15 Mars kernel: [3.160285] nouveau  [ CLK][:03:00.0]
07: core 405 MHz memory 810 MHz 
Mar 23 07:29:15 Mars kernel: [3.160719] nouveau  [ CLK][:03:00.0]
0a: core 270-1124 MHz memory 1600 MHz 
Mar 23 07:29:15 Mars kernel: [3.161171] nouveau  [ CLK][:03:00.0]
0f: core 270-1124 MHz memory 2002 MHz 
Mar 23 07:29:15 Mars kernel: [3.161324] nouveau  [ CLK][:03:00.0]
--: core 13 MHz  
Mar 23 07:29:15 Mars kernel: [3.192088] nouveau  [ DRM] VRAM:
-1159778304 MiB
Mar 23 07:29:15 Mars kernel: [3.192089] nouveau  [ DRM] GART: 1048576
MiB
Mar 23 07:29:15 Mars kernel: [3.192103] nouveau  [ DRM] DCB version 4.0
Mar 23 07:29:15 Mars kernel: [7.210976] nouveau  [ DRM] MM: using COPY
for buffer copies
Mar 23 07:29:15 Mars kernel: [7.210993] [drm] Initialized nouveau 1.2.2
20120801 for :03:00.0 on minor 1

One final point I did originally add an if statement to change the
device-cname to report GM108 in gm100.c I have now removed that and just added
the 0x118 case statement as originally suggested, sorry.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #16 from SMF smf.li...@ntlworld.com ---
Created attachment 114553
  -- https://bugs.freedesktop.org/attachment.cgi?id=114553action=edit
mmiotrace

Herewith my attempt at a mmiotrace of the nouveau driver startup. If this is
not correct please advise what is required.

thanks

Stuart

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #13 from EmilStephan emil.step...@t-online.de ---
Created attachment 114551
  -- https://bugs.freedesktop.org/attachment.cgi?id=114551action=edit
excerpt lspci -v and /v/l/m

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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--- Comment #17 from SMF smf.li...@ntlworld.com ---
Created attachment 114557
  -- https://bugs.freedesktop.org/attachment.cgi?id=114557action=edit
mmiotrace

This mmiotrace is from the NVIDIA-Linux-x86-346.47.run nvidia module. It does
not seem to contain much information. The sequence tried was :

load module
start X
wait a while
stop X
unload module.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #7 from SMF smf.li...@ntlworld.com ---
Created attachment 114537
  -- https://bugs.freedesktop.org/attachment.cgi?id=114537action=edit
Full dmesg log

I have increased the kernel log buffers to maximum has you suggested and I now
have a complete dmesg log from bootup.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

SMF smf.li...@ntlworld.com changed:

   What|Removed |Added

 CC||smf.li...@ntlworld.com

--- Comment #3 from SMF smf.li...@ntlworld.com ---
Created attachment 114524
  -- https://bugs.freedesktop.org/attachment.cgi?id=114524action=edit
part dmesg log

Hi,
I have a Lenovo Z70-50 with the Intel/Nvidia graphics and I am also interested
in getting the gm108 component functional. I use Linux From Scratch for my
system and so far I have had no luck with getting the Nvidia binary
(NVIDIA-Linux-x86-346.47.run) fuctional ( I have also tried UBUNTU also without
luck). I have however added the 0x118 case option to gm100.c in kernel 3.19.2 (
see attached partial dmesg log ) and I have a script ready to run the MMIOTrace
on my LFS setup.

Have you had any luck obtaining the nv118_fuc409c firmware the nouveau modules
is now requesting?

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #4 from SMF smf.li...@ntlworld.com ---
further to my previous message I have just tried Ilia's extract_firmware.py on
the 340.32 ( last supported version in the python script) binary and non of the
firmware extracted match my kernel dmesg.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #5 from SMF smf.li...@ntlworld.com ---
Created attachment 114534
  -- https://bugs.freedesktop.org/attachment.cgi?id=114534action=edit
XOrg Log


Herewith my Xorg log showing a degree of functionality from the nouveau driver
with the patched kernel.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #6 from Ilia Mirkin imir...@alum.mit.edu ---
Without firmware, you won't get acceleration. (And my script only extracts
pgraph fw from 325.15 which doesn't have maxwell firmware.) However you will
get (open) firmware with Ben's latest tree:

http://cgit.freedesktop.org/~darktama/nouveau

Perhaps it could work. It sounds like just using the GM107 logic isn't quite
enough, your log is full of

[5.961431] nouveau E[   PFIFO][:03:00.0] SCHED_ERROR [ UNK06 ]
[5.962869] nouveau E[   PFIFO][:03:00.0] SCHED_ERROR [ UNK06 ]
[5.964311] nouveau E[   PFIFO][:03:00.0] SCHED_ERROR [ UNK06 ]
[5.965752] nouveau E[   PFIFO][:03:00.0] SCHED_ERROR [ UNK06 ]
[5.967194] nouveau E[   PFIFO][:03:00.0] SCHED_ERROR [ UNK06 ]
[5.968605] nouveau E[   PFIFO][:03:00.0] SCHED_ERROR [ UNK06 ]
[5.970034] nouveau E[   PFIFO][:03:00.0] SCHED_ERROR [ UNK06 ]
[5.970303] nouveau E[   PFIFO][:03:00.0] runlist 4 update timeout

Perhaps Ben knows what that is. Could you try to increase your kernel log size
so that you get the start of those messages? May be interesting. [Also, please
avoid attaching things gzipped, makes one _much_ less likely to read them since
modern browsers force you to download... oh the Mozilla 0.99 days when it just
displayed whatever in the browser...]

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #8 from SMF smf.li...@ntlworld.com ---
Created attachment 114538
  -- https://bugs.freedesktop.org/attachment.cgi?id=114538action=edit
dmesg alternate nouveau tree

In this log I have removed the 3.19.2 kernel nouveau.ko and build the software
from the git source has you suggested. The new nouveau.ko module has loaded but
I cannot see anything in the log to indicate any functionality ( I modified the
gm100.c file has before), any suggestions has to what I have done wrong ?

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #9 from Ilia Mirkin imir...@alum.mit.edu ---
heh, yeah, you're gonna have a bad time with this:

[1.834852] nouveau  [  DEVICE][:03:00.0] BOOT0  : 0x118010a2
[1.834885] nouveau  [  DEVICE][:03:00.0] Chipset: GM108 (NV118)

How did you get that? I guess you copied the entire 0x117 section instead of
just adding the case 0x118 next to case 0x117? [not that there's anything
wrong with that]

[1.834915] nouveau  [  DEVICE][:03:00.0] Family : NV110
[1.841397] nouveau  [   VBIOS][:03:00.0] using image from ACPI
[1.841487] nouveau  [   VBIOS][:03:00.0] BIT signature found
[1.841518] nouveau  [   VBIOS][:03:00.0] version 82.08.13.00.1c
[1.841817] nouveau  [ PMC][:03:00.0] MSI interrupts enabled
[1.841890] nouveau  [ PFB][:03:00.0] RAM type: DDR3
[1.841898] nouveau E[PBUS][:03:00.0] MMIO read of 0x FAULT
at 0x6013d4 [ IBUS ]

That's the vga 0x3d4 port afaik... no display controller? no outputs in the
dcb, so I guess that makes sense. Does it come up as a 3D Accelerator, or VGA
compatible controller?

[1.841966] nouveau  [ PFB][:03:00.0] RAM size: -1159778304 MiB

Seems like an awfully low amount of vram :) Can you boot with
nouveau.debug=debug? That should provide some additional prints to work out how
it gets to such a fun quantity.

[1.841997] nouveau  [ PFB][:03:00.0]ZCOMP: 0 tags
[1.842052] nouveau E[PBUS][:03:00.0] MMIO read of 0x FAULT
at 0x10f65c [ IBUS ]
[1.842169] nouveau E[PBUS][:03:00.0] MMIO read of 0x FAULT
at 0x17e280 [ IBUS ]
[1.880555] nouveau  [  PTHERM][:03:00.0] FAN control: none / external
[1.880602] nouveau  [  PTHERM][:03:00.0] internal sensor: no
[1.880672] nouveau  [ CLK][:03:00.0] 07: core 405 MHz memory 810
MHz 
[1.880798] nouveau  [ CLK][:03:00.0] 0a: core 270-1124 MHz memory
1600 MHz 
[1.880951] nouveau  [ CLK][:03:00.0] 0f: core 270-1124 MHz memory
2002 MHz 
[1.881116] nouveau  [ CLK][:03:00.0] --: core 13 MHz  
[1.911386] nouveau  [  PGRAPH][:03:00.0] using external firmware
[1.911429] nouveau :03:00.0: Direct firmware load for
nouveau/nv118_fuc409c failed with error -2
[1.911472] request_firmware returned -2 (0xf2cb3b64 'nouveau/nv118_fuc409c'
0xf2687864)
[1.912817] nouveau :03:00.0: Direct firmware load for nouveau/fuc409c
failed with error -2
[1.914179] request_firmware returned -2 (0xf2cb3b64 'nouveau/fuc409c'
0xf2687864)
[1.915536] nouveau E[  PGRAPH][:03:00.0] failed to load fuc409c
[1.916912] vga_switcheroo: enabled
[1.918346] [TTM] Zone  kernel: Available graphics memory: 413022 kiB
[1.919713] [TTM] Zone highmem: Available graphics memory: 4097762 kiB
[1.921085] [TTM] Initializing pool allocator
[1.922452] nouveau  [ DRM] VRAM: -1159778304 MiB
[1.923815] nouveau  [ DRM] GART: 1048576 MiB
[1.925179] nouveau E[ DRM] Pointer to TMDS table invalid
[1.926537] nouveau  [ DRM] DCB version 4.0
[1.927891] nouveau E[ DRM] Pointer to flat panel table invalid
[1.939229] nouveau E[   PFIFO][:03:00.0] write fault at 0x07
[UNBOUND_INST_BLOCK] from BAR3/HOST_CPU_NB on channel 0x00 [unknown]
[1.941398] nouveau E[   PFIFO][:03:00.0] DROPPED_MMU_FAULT 0x
[1.942989] nouveau E[   PFIFO][:03:00.0] BIND_ERROR [ INVALID_CTX_TGT ]
[1.944398] nouveau E[   PFIFO][:03:00.0] read fault at 0x00
[UNBOUND_INST_BLOCK] from GR/VIP on channel 0x00 [unknown]
[1.945821] nouveau E[   PFIFO][:03:00.0] SCHED_ERROR [ UNK08 ]
[1.948423] nouveau E[   PFIFO][:03:00.0] SCHED_ERROR [ UNK06 ]
[1.951026] nouveau E[   PFIFO][:03:00.0] SCHED_ERROR [ UNK06 ]

I'm very willing to believe that these issues are all caused by the negative
vram size.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #10 from Ilia Mirkin imir...@alum.mit.edu ---
(In reply to SMF from comment #8)
 Created attachment 114538 [details]
 dmesg alternate nouveau tree
 
 In this log I have removed the 3.19.2 kernel nouveau.ko and build the
 software from the git source has you suggested. The new nouveau.ko module
 has loaded but I cannot see anything in the log to indicate any
 functionality ( I modified the gm100.c file has before), any suggestions has
 to what I have done wrong ?

You appear to have built nvidiafb and it has taken over the device. It thinks
that it's a

[3.612411] nvidiafb: PCI nVidia NV34 framebuffer (64MB @ 0xB000)

and doubtful too much good can come of that. Please blacklist that module.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

Ilia Mirkin imir...@alum.mit.edu changed:

   What|Removed |Added

Summary|Unknown chipset error for   |[NV118] GM108 not supported
   |GeForce 840M|by nouveau

--- Comment #1 from Ilia Mirkin imir...@alum.mit.edu ---
There is presently no support in nouveau for this particular chip. However it
_ought_ to be pretty similar to the GM107, so you can just add a

case 0x118:

right above the case 0x117: in
drivers/gpu/drm/nouveau/core/engine/device/gm100.c (approximate path, going by
memory). In hypothetical scenario where that works fine, you still wouldn't be
able to use this for acceleration [but you would be able to use any displays
direct-attached to the controller, if any].

For acceleration, you can either grab blob fw (see
http://nouveau.freedesktop.org/wiki/NVC0_Firmware/), or you may want to build
the (out-of-tree style) module available at

http://cgit.freedesktop.org/~darktama/nouveau

which just 2 days ago gained support for GM107 acceleration without any blob
fw. All of these will require the extra case statement of course.

If you end up going through with any parts of this advice, let us know how it
works out. We'd love to add support for this chip, but no one on the nouveau
team presently has access to it.

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[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

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https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #2 from Ben Skeggs skeg...@gmail.com ---
An mmiotrace would be good as well.  Usually these chip revisions have minor
differences in the default graphics engine state that we really should account
for too.

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