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30093056f7
So far, only one pmu was allowed to be registered as core pmu and thus IBS pmus were being registered as uncore. However, with the event context rewrite, that limitation no longer exists and thus IBS pmus can also be registered as core pmu. This makes IBS much more usable, for ex, user will be able to do per-process precise monitoring on AMD: Before patch: $ sudo perf record -e cycles:pp ls Error: Invalid event (cycles:pp) in per-thread mode, enable system wide with '-a' After patch: $ sudo perf record -e cycles:pp ls [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.017 MB perf.data (33 samples) ] Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Ian Rogers <irogers@google.com> Link: https://lkml.kernel.org/r/20221115093904.1799-1-ravi.bangoria@amd.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.