Commit-ID: 24cf84672e0a1e0d13f3894b60cd820a0140342a Gitweb: http://git.kernel.org/tip/24cf84672e0a1e0d13f3894b60cd820a0140342a Author: Stephane Eranian <[email protected]> AuthorDate: Tue, 16 Aug 2016 16:09:49 -0400 Committer: Ingo Molnar <[email protected]> CommitDate: Mon, 5 Sep 2016 13:15:08 +0200
perf/x86/intel/uncore: Handle non-standard counter offset The offset of the counters for UPI and M2M boxes on Skylake server is non-standard (8 bytes apart). This patch introduces a custom flag UNCORE_BOX_FLAG_CTL_OFFS8 to specially handle it. Signed-off-by: Stephane Eranian <[email protected]> Signed-off-by: Kan Liang <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Vince Weaver <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> --- arch/x86/events/intel/uncore.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/events/intel/uncore.h b/arch/x86/events/intel/uncore.h index 78b9c23..a43175f 100644 --- a/arch/x86/events/intel/uncore.h +++ b/arch/x86/events/intel/uncore.h @@ -120,6 +120,7 @@ struct intel_uncore_box { }; #define UNCORE_BOX_FLAG_INITIATED 0 +#define UNCORE_BOX_FLAG_CTL_OFFS8 1 /* event config registers are 8-byte apart */ struct uncore_event_desc { struct kobj_attribute attr; @@ -172,6 +173,9 @@ static inline unsigned uncore_pci_fixed_ctr(struct intel_uncore_box *box) static inline unsigned uncore_pci_event_ctl(struct intel_uncore_box *box, int idx) { + if (test_bit(UNCORE_BOX_FLAG_CTL_OFFS8, &box->flags)) + return idx * 8 + box->pmu->type->event_ctl; + return idx * 4 + box->pmu->type->event_ctl; }
