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| author | Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com> | 2012-09-25 17:26:50 +0100 |
|---|---|---|
| committer | Andrey Konovalov <andrey.konovalov@linaro.org> | 2013-05-25 13:19:04 +0400 |
| commit | b0e9dfa34c1dd974fa8945140b3b718988cab8ae (patch) | |
| tree | 2d593fd456aac5e883e571c1a79938fa72ff8ed2 /Documentation/devicetree | |
| parent | 0024047ab3b5d3fc34182931397f2b3b2907255e (diff) | |
ARM: perf: register CPU PMUs with idr types
In order to support multiple, heterogeneous CPU PMUs and distinguish
them, they cannot be registered as PERF_TYPE_RAW type. Instead we can
get perf core to allocate a new idr type id for each PMU.
Userspace applications can refer sysfs entried to find a PMU's type,
which can then be used in tracking events on individual PMUs.
Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Diffstat (limited to 'Documentation/devicetree')
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