From: Kan Liang kan.liang@linux.intel.com
Sampling SLOTS event and ref-cycles event in a group on Icelake gives EINVAL.
SLOTS event is the event stands for the fixed counter 3, not fixed counter 2. Wrong mask was set to SLOTS event in intel_icl_pebs_event_constraints[].
Fixes: 6017608936c1 ("perf/x86/intel: Add Icelake support") Reported-by: Andi Kleen ak@linux.intel.com Signed-off-by: Kan Liang kan.liang@linux.intel.com Cc: stable@vger.kernel.org --- arch/x86/events/intel/ds.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/events/intel/ds.c b/arch/x86/events/intel/ds.c index 505c73dc6a73..6601b8759c92 100644 --- a/arch/x86/events/intel/ds.c +++ b/arch/x86/events/intel/ds.c @@ -851,7 +851,7 @@ struct event_constraint intel_skl_pebs_event_constraints[] = {
struct event_constraint intel_icl_pebs_event_constraints[] = { INTEL_FLAGS_UEVENT_CONSTRAINT(0x1c0, 0x100000000ULL), /* INST_RETIRED.PREC_DIST */ - INTEL_FLAGS_UEVENT_CONSTRAINT(0x0400, 0x400000000ULL), /* SLOTS */ + INTEL_FLAGS_UEVENT_CONSTRAINT(0x0400, 0x800000000ULL), /* SLOTS */
INTEL_PLD_CONSTRAINT(0x1cd, 0xff), /* MEM_TRANS_RETIRED.LOAD_LATENCY */ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(0x1d0, 0xf), /* MEM_INST_RETIRED.LOAD */