From 265b7eb223dc23864730f3328c9a2b877cbd5a07 Mon Sep 17 00:00:00 2001
From: Kristofer Jonsson <kristofer.jonsson@arm.com>
Date: Thu, 29 Sep 2022 12:01:28 +0200
Subject: Update Event Monitor

Add cycle counter, QREAD and STATUS to Event Monitor record.

Change-Id: I9c225558a9d46b05fe322270b4a921ead6bb0233
---
 lib/ethosu_monitor/include/ethosu_monitor.hpp | 20 +++++++++++++---
 lib/ethosu_monitor/src/ethosu_monitor.cpp     | 33 +++++++++++++++------------
 2 files changed, 36 insertions(+), 17 deletions(-)

diff --git a/lib/ethosu_monitor/include/ethosu_monitor.hpp b/lib/ethosu_monitor/include/ethosu_monitor.hpp
index c2d0908..c76ee8b 100644
--- a/lib/ethosu_monitor/include/ethosu_monitor.hpp
+++ b/lib/ethosu_monitor/include/ethosu_monitor.hpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Arm Limited. All rights reserved.
+ * SPDX-FileCopyrightText: Copyright 2021-2022 Arm Limited and/or its affiliates <open-source-office@arm.com>
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -32,7 +32,7 @@ class EthosUMonitor {
 public:
     enum Backend { PRINTF, EVENT_RECORDER };
 
-    EthosUMonitor(std::vector<int32_t> eventRecordIds, Backend backend = PRINTF);
+    EthosUMonitor(Backend backend = PRINTF);
 
     template <typename T>
     void configure(ethosu_driver *drv, const T &eventIds) {
@@ -50,7 +50,10 @@ public:
             ETHOSU_PMU_CNTR_Enable(drv, 1 << i);
         }
 
+        ETHOSU_PMU_CNTR_Enable(drv, ETHOSU_PMU_CCNT_Msk);
+
         ETHOSU_PMU_EVCNTR_ALL_Reset(drv);
+        ETHOSU_PMU_CYCCNT_Reset(drv);
     }
 
     void release(ethosu_driver *drv);
@@ -58,9 +61,20 @@ public:
     void monitorSample(ethosu_driver *drv);
 
 private:
+    struct EthosuEventRecord {
+        uint64_t cycleCount;
+        uint32_t qread;
+        uint32_t status;
+        struct {
+            uint32_t eventConfig;
+            uint32_t eventCount;
+        } event[ETHOSU_PMU_NCOUNTERS];
+    };
+
+    static constexpr int32_t EthosuEventComponentNo = 0x00;
+
     ethosu_pmu_event_type ethosuEventIds[ETHOSU_PMU_NCOUNTERS];
     size_t numEvents;
-    std::vector<int32_t> eventRecordIds;
     Backend backend;
 };
 
diff --git a/lib/ethosu_monitor/src/ethosu_monitor.cpp b/lib/ethosu_monitor/src/ethosu_monitor.cpp
index 0fe4b44..d13e6c2 100644
--- a/lib/ethosu_monitor/src/ethosu_monitor.cpp
+++ b/lib/ethosu_monitor/src/ethosu_monitor.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Arm Limited. All rights reserved.
+ * SPDX-FileCopyrightText: Copyright 2021-2022 Arm Limited and/or its affiliates <open-source-office@arm.com>
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -21,21 +21,26 @@
 #include <inttypes.h>
 #include <stdio.h>
 
-EthosUMonitor::EthosUMonitor(std::vector<int32_t> __eventRecordIds, Backend __backend) :
-    eventRecordIds(__eventRecordIds), backend(__backend) {}
+EthosUMonitor::EthosUMonitor(Backend __backend) : backend(__backend) {}
 
 void EthosUMonitor::monitorSample(ethosu_driver *drv) {
-    // Fetch events
-    uint32_t eventCount[ETHOSU_PMU_NCOUNTERS] = {0};
-    for (size_t i = 0; i < numEvents; i++) {
-        eventCount[i] = ETHOSU_PMU_Get_EVCNTR(drv, i);
-        switch (backend) {
-        case EVENT_RECORDER:
-            EventRecord2(eventRecordIds[i], ethosuEventIds[i], eventCount[i]);
-            break;
-        case PRINTF:
-        default:
-            LOG("ethosu_pmu_cntr%zd : %" PRIu32 "\n", i, eventCount[i]);
+    switch (backend) {
+    case EVENT_RECORDER: {
+        EthosuEventRecord record = {ETHOSU_PMU_Get_CCNTR(drv),
+                                    ETHOSU_PMU_Get_QREAD(drv),
+                                    ETHOSU_PMU_Get_STATUS(drv),
+                                    {{ethosuEventIds[0], ETHOSU_PMU_Get_EVCNTR(drv, 0)},
+                                     {ethosuEventIds[1], ETHOSU_PMU_Get_EVCNTR(drv, 1)},
+                                     {ethosuEventIds[2], ETHOSU_PMU_Get_EVCNTR(drv, 2)},
+                                     {ethosuEventIds[3], ETHOSU_PMU_Get_EVCNTR(drv, 3)}}};
+
+        EventRecordData(EventID(EventLevelDetail, EthosuEventComponentNo, 0), &record, sizeof(record));
+        break;
+    }
+    case PRINTF:
+    default:
+        for (size_t i = 0; i < numEvents; i++) {
+            LOG("ethosu_pmu_cntr%zd : %" PRIu32 "\n", i, ETHOSU_PMU_Get_EVCNTR(drv, 0));
         }
     }
 }
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