[Nouveau] [Bug 101665] lspci blocks forever with a GP107M

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101665

--- Comment #3 from Karol Herbst <karolherbst at gmail.com> ---
this is because lspci reads the config file, which then triggers a full GPU
wake up, which is a silly thing to do in the first place.

What we need is something like this in the kernel:
https://github.com/karolherbst/linux/commit/cb918e4c926990dfcfce92e1ecd905e0896de605
and then make use of those in userspace, so that we don't need to read config
every time anymore.

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