Messages in this thread | | | From | Jiri Olsa <> | Subject | [PATCHv3 0/8] perf/x86: Rework msr probe interface | Date | Sun, 16 Jun 2019 16:03:50 +0200 |
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hi, following up on [1], [2] and [3], this patchset adds update attribute groups to pmu, factors out the MSR probe code and use it in msr,cstate* and rapl PMUs.
The functionality stays the same with one exception: for msr PMU: the event is not exported if the rdmsr return zero on event's msr, cstate* and rapl pmu functionality stays.
And also: ;-) > Somewhere along the line you lost the explanation of _why_ we're doing > this; namely: virt sucks.
Also available in: git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git perf/msr
Tested on snb and skylake servers.
v3 changes: - rebase on latest perf changes for Icelake models
v2 changes: - checking zero rdmsr only for rapl PMU events, cstate* and msr pmu functionality stays unchanged
thanks, jirka
[1] https://lore.kernel.org/lkml/20190301114250.GA23459@krava/ [2] https://lore.kernel.org/lkml/20190318182116.17388-1-jolsa@kernel.org/ [3] https://lore.kernel.org/lkml/20190512155518.21468-1-jolsa@kernel.org/ --- Jiri Olsa (8): perf/x86: Add msr probe interface perf/x86/msr: Use new probe function perf/x86/cstate: Use new probe function perf/x86/rapl: Use new msr detection interface perf/x86/rapl: Get rapl_cntr_mask from new probe framework perf/x86/rapl: Get msr values from new probe framework perf/x86/rapl: Get attributes from new probe framework perf/x86/rapl: Get quirk state from new probe framework
arch/x86/events/Makefile | 2 +- arch/x86/events/intel/cstate.c | 152 +++++++++++++++++++++++++++--------------------- arch/x86/events/intel/rapl.c | 380 ++++++++++++++++++++++++++++++++++++++++++++++++++++++------------------------------------------------------------------ arch/x86/events/msr.c | 110 +++++++++++++++++++---------------- arch/x86/events/probe.c | 45 +++++++++++++++ arch/x86/events/probe.h | 29 ++++++++++ 6 files changed, 392 insertions(+), 326 deletions(-) create mode 100644 arch/x86/events/probe.c create mode 100644 arch/x86/events/probe.h
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