[PATCH 4.9 188/207] perf/x86/intel/uncore: Fix filter_tid mask for CHA events on Skylake Server

From: Alexander Antonov <redacted>

[ Upstream commit e324234e0aa881b7841c7c713306403e12b069ff ]

According Uncore Reference Manual: any of the CHA events may be filtered
by Thread/Core-ID by using tid modifier in CHA Filter 0 Register.
Update skx_cha_hw_config() to follow Uncore Guide.

Fixes: cd34cd97b7b4 ("perf/x86/intel/uncore: Add Skylake server uncore support")
Signed-off-by: Alexander Antonov <redacted>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Kan Liang <redacted>
Link: https://lore.kernel.org/r/20211115090334.3789-2-alexander.antonov@linux.intel.com (local)
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/events/intel/uncore_snbep.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index 686dd4339370f..cfd7b85f97889 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c

@@ -3363,6 +3363,9 @@ static int skx_cha_hw_config(struct intel_uncore_box *box, struct perf_event *ev
 	struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
 	struct extra_reg *er;
 	int idx = 0;
+	/* Any of the CHA events may be filtered by Thread/Core-ID.*/
+	if (event->hw.config & SNBEP_CBO_PMON_CTL_TID_EN)
+		idx = SKX_CHA_MSR_PMON_BOX_FILTER_TID;
 
 	for (er = skx_uncore_cha_extra_regs; er->msr; er++) {
 		if (er->event != (event->hw.config & er->config_mask))

-- 
2.33.0