From: Alexander Antonov alexander.antonov@linux.intel.com
stable inclusion from linux-4.19.218 commit 1b36736c257dc5468338e43d540490274329210c
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[ 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 alexander.antonov@linux.intel.com Signed-off-by: Peter Zijlstra (Intel) peterz@infradead.org Reviewed-by: Kan Liang kan.liang@linux.intel.com Link: https://lore.kernel.org/r/20211115090334.3789-2-alexander.antonov@linux.inte... Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- 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 01f53d0d3af18..eaa0a493069b3 100644 --- a/arch/x86/events/intel/uncore_snbep.c +++ b/arch/x86/events/intel/uncore_snbep.c @@ -3530,6 +3530,9 @@ 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))