[PATCH] perf/x86/intel/uncore: Fix CHA registers configuration procedure for Knights Landing platform

[hchrzani]

CHA events in Knights Landing platform require programming filter registers properly.
Before change, code lacked mandatory bitset operations for reserved bits.
As a result some events were not counted.

Fixes: 77af003 ('perf/x86/intel/uncore: Add Knights Landing uncore PMU support')
Signed-off-by: Hubert Chrzaniuk <hubert.chrzaniuk@xxxxxxxxx>
Signed-off-by: Lawrence F Meadows <lawrence.f.meadows@xxxxxxxxx>
---
 arch/x86/events/intel/uncore_snbep.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index ab2bcaa..47d7216 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -1902,6 +1902,7 @@ static int knl_cha_hw_config(struct intel_uncore_box *box,
 		reg1->reg = HSWEP_C0_MSR_PMON_BOX_FILTER0 +
 			    KNL_CHA_MSR_OFFSET * box->pmu->pmu_idx;
 		reg1->config = event->attr.config1 & knl_cha_filter_mask(idx);
+		reg1->config |= 0x23ull << 32;
 		reg1->idx = idx;
 	}
 	return 0;
-- 
1.8.3.1