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6783d3b085
NovaCore has so far been too imprecise about figuring out if .probe() has found a supported PCI PF (Physical Function). By that I mean: .probe() sets up BAR0 (which involves a lot of very careful devres and Device<Bound> details behind the scenes). And then if it is dealing with a non-supported device such as the .1 audio PF on many GPUs, it fails out due to an unexpected BAR0 size. We have been fortunate that the BAR0 sizes are different. Really, we should be filtering on PCI class ID instead. These days I think we can confidently pick out Nova's supported PF's via PCI class ID. And if not, then we'll revisit. The approach here is to filter on "Display VGA" or "Display 3D", which is how PCI class IDs express "this is a modern GPU's PF". Cc: Danilo Krummrich <dakr@kernel.org> Cc: Elle Rhumsaa <elle@weathered-steel.dev> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: John Hubbard <jhubbard@nvidia.com> Link: https://lore.kernel.org/r/20250829223632.144030-5-jhubbard@nvidia.com Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.