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Each platform has raw event encoding format which specifies the bit positions for different fields. The fields from event code gets translated into performance monitoring mode control register (MMCRx) settings. Patch add macros to extract individual fields from the event code. Add functions for sanity checks, since testcases currently are only supported in power9 and power10. Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> [mpe: Read PVR directly rather than using /proc/cpuinfo] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220127072012.662451-4-kjain@linux.ibm.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.