Vasant Hegde a0c47f233e iommu/amd: Introduce iommu_dev_data.max_pasids
This variable will track the number of PASIDs supported by the device.
If IOMMU or device doesn't support PASID then it will be zero.

This will be used while allocating GCR3 table to decide required number
of PASID table levels. Also in PASID bind path it will use this variable
to check whether device supports PASID or not.

Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20240418103400.6229-7-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-04-26 12:15:59 +02:00
2024-04-21 12:35:54 -07:00
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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