From: Kan Liang <[email protected]>
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 <[email protected]>
Signed-off-by: Kan Liang <[email protected]>
Cc: [email protected]
---
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 */
--
2.17.1
