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perf pmu-events: Fix fixed counters on Intel
The JSON event lists use a different encoding for fixed counters than perf for instructions and cycles (ref-cycles is ok) This lead to some common events like inst_retired.any or cpu_clk_unhalted.thread not counting, when specified with their JSON name. Special case these events in the jevents conversion process. I prefer to not touch the JSON files for this, as it's intended that standard JSON files can be just dropped into the perf build without changes. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> [Fix minor compile error] Acked-by: Ingo Molnar <mingo@kernel.org> Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/1473978296-20712-18-git-send-email-sukadev@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -306,6 +306,29 @@ static void print_events_table_suffix(FILE *outfp)
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close_table = 0;
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}
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static struct fixed {
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const char *name;
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const char *event;
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} fixed[] = {
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{ "inst_retired.any", "event=0xc0" },
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{ "cpu_clk_unhalted.thread", "event=0x3c" },
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{ "cpu_clk_unhalted.thread_any", "event=0x3c,any=1" },
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{ NULL, NULL},
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};
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/*
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* Handle different fixed counter encodings between JSON and perf.
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*/
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static char *real_event(const char *name, char *event)
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{
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int i;
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for (i = 0; fixed[i].name; i++)
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if (!strcasecmp(name, fixed[i].name))
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return (char *)fixed[i].event;
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return event;
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}
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/* Call func with each event in the json file */
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int json_events(const char *fn,
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int (*func)(void *data, char *name, char *event, char *desc,
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@ -392,7 +415,7 @@ int json_events(const char *fn,
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addfield(map, &event, ",", msr->pname, msrval);
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fixname(name);
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err = func(data, name, event, desc, long_desc);
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err = func(data, name, real_event(name, event), desc, long_desc);
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free(event);
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free(desc);
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free(name);
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