diff options
| author | Stephane Eranian <eranian@google.com> | 2016-08-16 16:09:49 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-09-05 13:15:08 +0200 |
| commit | 24cf84672e0a1e0d13f3894b60cd820a0140342a (patch) | |
| tree | 6f0052b7e8e2cca6c8c2168e7112346b3fb7e580 | |
| parent | 68ce4a0dea168e99d422aed8f93eca5528fd0e50 (diff) | |
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 <eranian@google.com>
Signed-off-by: Kan Liang <kan.liang@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: http://lkml.kernel.org/r/1471378190-17276-2-git-send-email-kan.liang@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/x86/events/intel/uncore.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/events/intel/uncore.h b/arch/x86/events/intel/uncore.h index 78b9c23e2d8d..a43175fe4871 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; } |