perf intel-pt: Add memory information to synthesized PEBS sample

Add memory information from PEBS data in the Intel PT trace to the
synthesized PEBS sample. This provides sample types PERF_SAMPLE_ADDR,
PERF_SAMPLE_WEIGHT, and PERF_SAMPLE_TRANSACTION, but not
PERF_SAMPLE_DATA_SRC.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20190610072803.10456-11-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index db00c13..bf76478 100644 (file)
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -1766,6 +1766,33 @@ static int intel_pt_synth_pebs_sample(struct intel_pt_queue *ptq)
                }
        }
 
+       if (sample_type & PERF_SAMPLE_ADDR && items->has_mem_access_address)
+               sample.addr = items->mem_access_address;
+
+       if (sample_type & PERF_SAMPLE_WEIGHT) {
+               /*
+                * Refer kernel's setup_pebs_adaptive_sample_data() and
+                * intel_hsw_weight().
+                */
+               if (items->has_mem_access_latency)
+                       sample.weight = items->mem_access_latency;
+               if (!sample.weight && items->has_tsx_aux_info) {
+                       /* Cycles last block */
+                       sample.weight = (u32)items->tsx_aux_info;
+               }
+       }
+
+       if (sample_type & PERF_SAMPLE_TRANSACTION && items->has_tsx_aux_info) {
+               u64 ax = items->has_rax ? items->rax : 0;
+               /* Refer kernel's intel_hsw_transaction() */
+               u64 txn = (u8)(items->tsx_aux_info >> 32);
+
+               /* For RTM XABORTs also log the abort code from AX */
+               if (txn & PERF_TXN_TRANSACTION && ax & 1)
+                       txn |= ((ax >> 24) & 0xff) << PERF_TXN_ABORT_SHIFT;
+               sample.transaction = txn;
+       }
+
        return intel_pt_deliver_synth_event(pt, ptq, event, &sample, sample_type);
 }