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The PSP TA will only provide xGMI topology info for links between GPU sockets so links between partitions from different sockets will be hardcoded as 3 xGMI hops with 1 hops weighted as xGMI and 2 hops weighted with a new intra-socket weight to indicate the longest possible distance. If the link between a partition and the CPU is non-PCIe, then assume the CPU (CCDs) is located within the same socket as the partition and represent the link as an intra-socket weighted single hop XGMI link with memory bandwidth. Links between partitions within a single socket will be abstracted as single hop xGMI links weighted with the new intra-socket weight and will have memory bandwidth. Finally, use the unused function bits in the location ID to represent the coordinates of the compute partition within its socket. A follow on patch will resolve the requirement for GPU socket xGMI link representation sometime later. Signed-off-by: Jonathan Kim <jonathan.kim@amd.com> Reviewed-by: Felix Kuehling <felix.kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> |
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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 Restructured Text 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.