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d2e8a34876
Add pcie_tph_get_cpu_st() to allow a caller to retrieve Steering Tags for a target memory associated with a specific CPU. The ST tag is retrieved by invoking PCI ACPI "_DSM to Query Cache Locality TPH Features" method (rev=0x7, func=0xF) of the device's Root Port device. Add pcie_tph_set_st_entry() to update the device's Steering Tags. The tags will be written into the device's MSI-X table or the ST table located in the TPH Extended Capability space. Co-developed-by: Eric Van Tassell <Eric.VanTassell@amd.com> Link: https://lore.kernel.org/r/20241002165954.128085-3-wei.huang2@amd.com Signed-off-by: Eric Van Tassell <Eric.VanTassell@amd.com> Signed-off-by: Wei Huang <wei.huang2@amd.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com> Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com> Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
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.