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| author | Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com> | 2012-09-25 17:26:50 +0100 |
|---|---|---|
| committer | Jon Medhurst <tixy@linaro.org> | 2013-07-17 11:12:03 +0100 |
| commit | c5cb3e02afbaaa22d4fcd6d9f641bc60b357eb24 (patch) | |
| tree | 8ee6dc587a6ab36ba6df14ea1f1a7083247e47bb /Documentation | |
| parent | 66fd721f38a9de0f020d77eb2995e6b8a3db5157 (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')
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