diff options
| author | Kan Liang <kan.liang@linux.intel.com> | 2021-04-12 07:30:47 -0700 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2021-04-19 20:03:25 +0200 |
| commit | eaacf07d1116f6bf3b93b265515fccf2301097f2 (patch) | |
| tree | 890f794eae350a899f516bf22603069b70c4dff8 /arch/x86/events/perf_event.h | |
| parent | d4b294bf84db7a84e295ddf19cb8e7f71b7bd045 (diff) | |
perf/x86: Hybrid PMU support for unconstrained
The unconstrained value depends on the number of GP and fixed counters.
Each hybrid PMU should use its own unconstrained.
Suggested-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/1618237865-33448-8-git-send-email-kan.liang@linux.intel.com
Diffstat (limited to 'arch/x86/events/perf_event.h')
| -rw-r--r-- | arch/x86/events/perf_event.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h index 0539ad415750..2688e455df7b 100644 --- a/arch/x86/events/perf_event.h +++ b/arch/x86/events/perf_event.h @@ -638,6 +638,7 @@ struct x86_hybrid_pmu { int max_pebs_events; int num_counters; int num_counters_fixed; + struct event_constraint unconstrained; }; static __always_inline struct x86_hybrid_pmu *hybrid_pmu(struct pmu *pmu) @@ -658,6 +659,16 @@ extern struct static_key_false perf_is_hybrid; __Fp; \ })) +#define hybrid_var(_pmu, _var) \ +(*({ \ + typeof(&_var) __Fp = &_var; \ + \ + if (is_hybrid() && (_pmu)) \ + __Fp = &hybrid_pmu(_pmu)->_var; \ + \ + __Fp; \ +})) + /* * struct x86_pmu - generic x86 pmu */ |