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Previously, the MSR uncore for the Ice Lake and Tiger Lake are identical. The code path is shared. However, with recent update, the global MSR_UNC_PERF_GLOBAL_CTRL register and ARB uncore unit are changed for the Ice Lake. Split the Ice Lake and Tiger Lake MSR uncore support. The changes only impact the MSR ops() and the ARB uncore unit. Other codes can still be shared between the Ice Lake and the Tiger Lake. Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20200925134905.8839-1-kan.liang@linux.intel.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 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.