Ankit Agrawal 7d055071d7 vfio/nvgrace-gpu: split the code to wait for GPU ready
Split the function that check for the GPU device being ready on
the probe.

Move the code to wait for the GPU to be ready through BAR0 register
reads to a separate function. This would help reuse the code.

This also fixes a bug where the return status in case of timeout
gets overridden by return from pci_enable_device. With the fix,
a timeout generate an error as initially intended.

Fixes: d85f69d520 ("vfio/nvgrace-gpu: Check the HBM training and C2C link status")

Reviewed-by: Zhi Wang <zhiw@nvidia.com>
Reviewed-by: Shameer Kolothum <skolothumtho@nvidia.com>
Signed-off-by: Ankit Agrawal <ankita@nvidia.com>
Link: https://lore.kernel.org/r/20251127170632.3477-5-ankita@nvidia.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
2025-11-28 10:07:25 -07:00
2022-09-28 09:02:20 +02:00
2025-02-19 14:53:27 -07:00
2025-11-02 11:28:02 -08:00
2024-03-18 03:36:32 -06:00

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.
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