From 0b1db474314c883d0bfc6720278667a6155e995a Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Thu, 15 Sep 2016 15:24:54 -0700 Subject: [PATCH] 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 Signed-off-by: Sukadev Bhattiprolu [Fix minor compile error] Acked-by: Ingo Molnar Cc: Madhavan Srinivasan Cc: Peter Zijlstra 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 --- tools/perf/pmu-events/jevents.c | 25 ++++++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c index 13f4284721d5..04e106e799ac 100644 --- a/tools/perf/pmu-events/jevents.c +++ b/tools/perf/pmu-events/jevents.c @@ -306,6 +306,29 @@ static void print_events_table_suffix(FILE *outfp) close_table = 0; } +static struct fixed { + const char *name; + const char *event; +} fixed[] = { + { "inst_retired.any", "event=0xc0" }, + { "cpu_clk_unhalted.thread", "event=0x3c" }, + { "cpu_clk_unhalted.thread_any", "event=0x3c,any=1" }, + { NULL, NULL}, +}; + +/* + * Handle different fixed counter encodings between JSON and perf. + */ +static char *real_event(const char *name, char *event) +{ + int i; + + for (i = 0; fixed[i].name; i++) + if (!strcasecmp(name, fixed[i].name)) + return (char *)fixed[i].event; + return event; +} + /* Call func with each event in the json file */ int json_events(const char *fn, int (*func)(void *data, char *name, char *event, char *desc, @@ -392,7 +415,7 @@ int json_events(const char *fn, addfield(map, &event, ",", msr->pname, msrval); fixname(name); - err = func(data, name, event, desc, long_desc); + err = func(data, name, real_event(name, event), desc, long_desc); free(event); free(desc); free(name); -- 2.39.5