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b2ad9549bf
AMD IBS can do per-process profiling[1] and is no longer restricted to per-cpu or systemwide only. Remove stale error message. Also, checking just exclude_kernel is not sufficient since IBS does not support any privilege filters. So include all exclude_* checks. And finally, move these checks under tools/perf/arch/x86/ from generic code. Before: $ sudo ./perf record -e ibs_op//k -C 0 Error: AMD IBS may only be available in system-wide/per-cpu mode. Try using -a, or -C and workload affinity After: $ sudo ./perf record -e ibs_op//k -C 0 Error: AMD IBS doesn't support privilege filtering. Try again without the privilege modifiers (like 'k') at the end. [1] https://git.kernel.org/torvalds/c/30093056f7b2 Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: ananth.narayan@amd.com Cc: sandipan.das@amd.com Cc: santosh.shukla@amd.com Cc: irogers@google.com Cc: peterz@infradead.org Cc: adrian.hunter@intel.com Cc: acme@kernel.org Cc: jolsa@kernel.org Link: https://lore.kernel.org/r/20230630085230.437-1-ravi.bangoria@amd.com Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
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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.