Maxwell GM107/GM108 support

[pchome]

IDK what GM000 for but lets use it for now.

Test reports:

-    Architecture ID:            0x000000e0 (Kepler)
+    Architecture ID:            0x00000110 (Maxwell)
 ...
-    Compute capable:            -
+    Compute capable:            Yes (Compute GPU topology flags: 0x0b)

Filters: [d3d],[d3d11],[d3d12],[drs],[sysinfo],[sysinfo-topo],[sysinfo-nvml],[sysinfo-hdr],[util],[system]
...
All tests passed (54839 assertions in 18 test cases)

[jp7677]

Thanks. What is your motivation for this PR, does this changes something in a real life scenario?

[pchome]

Reports 'Compute capable' for PhysX.

FluidMark_0001.log

FluidMark 1.5.2 startup...
Checking NVIDIA PhysX hardware...
NVIDIA PhysX engine version 2.8.4 successfully started.
NVIDIA PhysX engine - found 1 PhysX GPU(s).
...
NVIDIA PhysX engine init - gpuHeapSize=512MB
NVIDIA PhysX engine - # of PPUs detected: 0
NVIDIA PhysX: PhysX hardware not detected (NX_HW_VERSION_NONE).
NVIDIA PhysX engine version 2.8.4 successfully started.
NVIDIA PhysX shutdown ok.
...

I usually play Borderlands w/ Full HW PhysX enabled, adds a lot of details and fun.

[jp7677]

Please be a bit more verbose, I don't want to read between the lines.

So you have a Maxwell GM107/108 card and this change allows you to enable PhysX and it also works? Above log lines are from FluidMark without this patch, but with this patch the log changes and the benchmark works on GM107/108?

[pchome]

So you have a Maxwell GM107/108 card and this change allows you to enable PhysX and it also works?

Yes.
750Ti, GM107
GM108 - are something 800M (mobile(?))

Above log lines are from FluidMark without this patch, but with this patch the log changes and the benchmark works on GM107/108?

With this patch.
NVIDIA PhysX engine - found 1 PhysX GPU(s). - indication of success.
and
NVIDIA PhysX: PhysX hardware not detected (NX_HW_VERSION_NONE). - seems just reporting that it's not PPU (dedicated PhysX processor(?))

Without this patch (or nvcuda.dll) log lines are a bit different:
NVIDIA PhysX engine - found 0 PhysX GPU(s). - 'Compute capable' not found
no NVIDIA PhysX engine init line and no other PhysX related lines an the end.

Also there is a checkmark to enable GPU PhysX in FluidMark, which available with patch and disabled w/o.

[jp7677]

Thanks for the clarification. I would love to see a few more additions, but looks good in general.

We need to extend/adjust the tests to cover the new cases:
https://github.com/jp7677/dxvk-nvapi/blob/master/tests/nvapi_sysinfo.cpp#L751 and https://github.com/jp7677/dxvk-nvapi/blob/master/tests/nvapi_sysinfo.cpp#L309 and https://github.com/jp7677/dxvk-nvapi/blob/master/tests/nvapi_d3d12.cpp#L243

It would also be nice to make a distinction between Maxwell (Gen1) and Maxwell (Gen2) here https://github.com/jp7677/dxvk-nvapi/blob/master/tests/nvapi_system.cpp#L46 since we know that difference now.

[jp7677]

Accoording to https://en.wikipedia.org/wiki/Maxwell_(microarchitecture) we should correct this and report sm52 for Maxwell Gen2 and sm50 for Maxwell Gen2.

[pchome]

See info about Series_* too.

[pchome]

Well, *_series.
https://en.wikipedia.org/wiki/GeForce_700_series
https://en.wikipedia.org/wiki/GeForce_800M_series
https://en.wikipedia.org/wiki/GeForce_900_series

All contains info about numbers for Maxwell Gen1.
Just in case.

[jp7677]

This is also the case for NVK (https://gitlab.freedesktop.org/mesa/mesa/-/blob/main/src/nouveau/vulkan/nvk_physical_device.c?ref_type=heads#L244) which is nice!

[pchome]

This is the soure ;) so no double check.
As double check I filtered all devices by this thing on vulkan.gpuinfo.org with additional finter for NV -- only gen1 maxwells and some weird setups was lowest.

[jp7677]

We should also add this to the readme at https://github.com/jp7677/dxvk-nvapi/blob/master/README.md#tweaks-debugging-and-troubleshooting

[jp7677]

Hi @pchome I took the liberty to add the remaining bits here #228
I've added your name as co-author since nearly all of the work came from this PR.

[jp7677]

Merged manually with #228