From: Alexander Antonov Date: Mon, 15 Nov 2021 09:03:32 +0000 (+0300) Subject: perf/x86/intel/uncore: Fix filter_tid mask for CHA events on Skylake Server X-Git-Tag: v6.1-rc5~2571^2~3 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e324234e0aa881b7841c7c713306403e12b069ff;p=platform%2Fkernel%2Flinux-starfive.git perf/x86/intel/uncore: Fix filter_tid mask for CHA events on Skylake Server 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 Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Kan Liang Link: https://lore.kernel.org/r/20211115090334.3789-2-alexander.antonov@linux.intel.com --- diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c index eb2c6ce..e5ee6bb 100644 --- a/arch/x86/events/intel/uncore_snbep.c +++ b/arch/x86/events/intel/uncore_snbep.c @@ -3608,6 +3608,9 @@ 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))