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The functions perf_pmu__is_hybrid and perf_pmu__find_hybrid_pmu can be used to identify the hybrid platform and return the found hybrid cpu pmu. All the detected hybrid pmus have been saved in 'perf_pmu__hybrid_pmus' list. So we just need to search this list. perf_pmu__hybrid_type_to_pmu converts the user specified string to hybrid pmu name. This is used to support the '--cputype' option in next patches. perf_pmu__has_hybrid checks the existing of hybrid pmu. Note that, we have to define it in pmu.c (make pmu-hybrid.c no more symbol dependency), otherwise perf test python would be failed. Signed-off-by: Jin Yao <yao.jin@linux.intel.com> Reviewed-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20210427070139.25256-7-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.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.