From 5f4e14ad324a032a53c4d6ac6c773e3a9efad7f1 Mon Sep 17 00:00:00 2001
From: Junyi Ye <294572668@qq.com>
Date: Sat, 25 May 2024 09:18:55 +0800
Subject: [PATCH] Check core event during pmu event list using perf_event_open.

---
 pmu/pfm/core.cpp       | 16 ++++++++++++++++
 pmu/pfm/pfm_name.cpp   |  2 ++
 pmu/pfm/pfm_name.h     |  2 ++
 pmu/pmu_event_list.cpp | 22 ++++++++++++++++++++++
 4 files changed, 42 insertions(+)

diff --git a/pmu/pfm/core.cpp b/pmu/pfm/core.cpp
index 20be590..d4edc60 100644
--- a/pmu/pfm/core.cpp
+++ b/pmu/pfm/core.cpp
@@ -111,6 +111,22 @@ const std::unordered_map<std::string, KUNPENG_PMU::CoreConfig> HIP_A_CORE_PMU_MA
             KUNPENG_PMU::COMMON::L1_DCACHE_LOADS
         }
     },
+    {
+        KUNPENG_PMU::COMMON::L1_DCACHE_STORE_MISSES,
+        {
+            PERF_TYPE_HW_CACHE,
+            0x10100,
+            KUNPENG_PMU::COMMON::L1_DCACHE_STORE_MISSES
+        }
+    },
+    {
+        KUNPENG_PMU::COMMON::L1_DCACHE_STORES,
+        {
+            PERF_TYPE_HW_CACHE,
+            0x100,
+            KUNPENG_PMU::COMMON::L1_DCACHE_STORES
+        }
+    },
     {
         KUNPENG_PMU::COMMON::IDLE_CYCLES_BACKEND,
         {
diff --git a/pmu/pfm/pfm_name.cpp b/pmu/pfm/pfm_name.cpp
index 1b66f8b..179dceb 100644
--- a/pmu/pfm/pfm_name.cpp
+++ b/pmu/pfm/pfm_name.cpp
@@ -32,6 +32,8 @@ const char* KUNPENG_PMU::COMMON::STALLED_CYCLES_BACKEND = "stalled-cycles-backen
 const char* KUNPENG_PMU::COMMON::STALLED_CYCLES_FRONTEND = "stalled-cycles-frontend";
 const char* KUNPENG_PMU::COMMON::L1_DCACHE_LOAD_MISSES = "L1-dcache-load-misses";
 const char* KUNPENG_PMU::COMMON::L1_DCACHE_LOADS = "L1-dcache-loads";
+const char* KUNPENG_PMU::COMMON::L1_DCACHE_STORE_MISSES = "L1-dcache-store-misses";
+const char* KUNPENG_PMU::COMMON::L1_DCACHE_STORES = "L1-dcache-stores";
 const char* KUNPENG_PMU::COMMON::IDLE_CYCLES_BACKEND = "idle-cycles-backend";
 const char* KUNPENG_PMU::COMMON::L1_ICACHE_LOAD_MISSES = "L1-icache-load-misses";
 const char* KUNPENG_PMU::COMMON::IDLE_CYCLES_FRONTEND = "idle-cycles-frontend";
diff --git a/pmu/pfm/pfm_name.h b/pmu/pfm/pfm_name.h
index bd4ae04..740e59f 100644
--- a/pmu/pfm/pfm_name.h
+++ b/pmu/pfm/pfm_name.h
@@ -32,6 +32,8 @@ extern const char* STALLED_CYCLES_BACKEND;
 extern const char* STALLED_CYCLES_FRONTEND;
 extern const char* L1_DCACHE_LOAD_MISSES;
 extern const char* L1_DCACHE_LOADS;
+extern const char* L1_DCACHE_STORE_MISSES;
+extern const char* L1_DCACHE_STORES;
 extern const char* IDLE_CYCLES_BACKEND;
 extern const char* L1_ICACHE_LOAD_MISSES;
 extern const char* IDLE_CYCLES_FRONTEND;
diff --git a/pmu/pmu_event_list.cpp b/pmu/pmu_event_list.cpp
index 0f6bb80..a90861c 100644
--- a/pmu/pmu_event_list.cpp
+++ b/pmu/pmu_event_list.cpp
@@ -21,6 +21,7 @@
 #include <mutex>
 #include <fstream>
 #include "core.h"
+#include "evt.h"
 #include "pcerr.h"
 #include "pmu.h"
 #include "common.h"
@@ -92,6 +93,24 @@ static void GetTraceSubFolder(const string& devName, vector<const char*>& eventL
     closedir(dir);
 }
 
+static bool PerfEventSupported(__u64 type, __u64 config)
+{
+    perf_event_attr attr{};
+    memset(&attr, 0, sizeof(attr));
+    attr.size = sizeof(struct perf_event_attr);
+    attr.type = type;
+    attr.config = config;
+    attr.disabled = 1;
+    attr.inherit = 1;
+    attr.read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | PERF_FORMAT_TOTAL_TIME_RUNNING | PERF_FORMAT_ID;
+    int fd = KUNPENG_PMU::PerfEventOpen(&attr, -1, 0, -1, 0);
+    if (fd < 0) {
+        return false;
+    }
+    close(fd);
+    return true;
+}
+
 const char** QueryCoreEvent(unsigned *numEvt)
 {
     if (!coreEventList.empty()) {
@@ -101,6 +120,9 @@ const char** QueryCoreEvent(unsigned *numEvt)
     auto coreEventMap = KUNPENG_PMU::CORE_EVENT_MAP.at(GetCpuType());
     for (auto& pair : coreEventMap) {
         auto eventName = pair.first;
+        if (!PerfEventSupported(pair.second.type, pair.second.config)) {
+            continue;
+        }
         char* eventNameCopy = new char[eventName.length() + 1];
         strcpy(eventNameCopy, eventName.c_str());
         coreEventList.emplace_back(eventNameCopy);
-- 
Gitee