Commit-ID: b10fc1c3e30c44033d1cb1d2900cc2ab06dff342 Gitweb: http://git.kernel.org/tip/b10fc1c3e30c44033d1cb1d2900cc2ab06dff342 Author: Andi Kleen <a...@linux.intel.com> AuthorDate: Thu, 4 Sep 2014 16:08:29 -0700 Committer: Ingo Molnar <mi...@kernel.org> CommitDate: Wed, 24 Sep 2014 14:48:24 +0200
perf/x86/intel/uncore: Fix PCU filter setup for Sandy/Ivy/Haswell EP The PCU frequency band filters use 8 bit each in a register. When setting up the value the shift value was not correctly scaled, which resulted in all filters except for band 0 to be zero. Fix the scaling. This allows to correctly monitor multiple uncore frequency bands. Signed-off-by: Andi Kleen <a...@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <pet...@infradead.org> Cc: eran...@google.com Link: http://lkml.kernel.org/r/1409872109-31645-5-git-send-email-a...@firstfloor.org Signed-off-by: Ingo Molnar <mi...@kernel.org> --- arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c b/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c index b237abc..adf138e 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c @@ -841,7 +841,7 @@ static int snbep_pcu_hw_config(struct intel_uncore_box *box, struct perf_event * if (ev_sel >= 0xb && ev_sel <= 0xe) { reg1->reg = SNBEP_PCU_MSR_PMON_BOX_FILTER; reg1->idx = ev_sel - 0xb; - reg1->config = event->attr.config1 & (0xff << reg1->idx); + reg1->config = event->attr.config1 & (0xff << (reg1->idx * 8)); } return 0; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
