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Commit fc06e2a5 authored by Andi Kleen's avatar Andi Kleen Committed by Arnaldo Carvalho de Melo
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perf pmu: Add override support for event list CPUID 



Add a PERF_CPUID variable to override the CPUID of the current CPU
(within the current architecture). This is useful for testing, so that
all event lists can be tested on a single system.

Signed-off-by: default avatarAndi Kleen <ak@linux.intel.com>
Signed-off-by: default avatarSukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Acked-by: default avatarIngo Molnar <mingo@kernel.org>
Acked-by: default avatarJiri Olsa <jolsa@redhat.com>
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/1473978296-20712-10-git-send-email-sukadev@linux.vnet.ibm.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 1c5f01fe

tools/perf/util/pmu.c

+7 −1
Original line number Diff line number Diff line
@@ -501,10 +501,16 @@ static void pmu_add_cpu_aliases(struct list_head *head) 
	struct pmu_event *pe;

	char *cpuid;



	cpuid = getenv("PERF_CPUID");

	if (cpuid)

		cpuid = strdup(cpuid);

	if (!cpuid)

		cpuid = get_cpuid_str();

	if (!cpuid)

		return;



	pr_debug("Using CPUID %s\n", cpuid);



	i = 0;

	while (1) {

		map = &pmu_events_map[i++];