SWDEV-268552 - HIP sample segfaults during hipModuleLoad, fix mmap bug

Change-Id: I51c6061e7ac6b2524586d96fdd69b9f084b1906a


[ROCm/hip commit: aac12d1bd9]

projects/hip/tests/src/runtimeApi/module/hipModuleLoadMultiThreaded.cpp

@@ -0,0 +1,115 @@
+/*
+Copyright (c) 2020-present Advanced Micro Devices, Inc. All rights reserved.
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+/* HIT_START
+ * BUILD_CMD: empty_kernel.code %hc --genco %S/empty_kernel.cpp -o empty_kernel.code
+ * BUILD: %t %s ../../test_common.cpp NVCC_OPTIONS -std=c++11
+ * TEST: %t
+ * HIT_END
+ */
+
+#include <stdio.h>
+#include "hip/hip_runtime.h"
+#ifdef __HIP_PLATFORM_AMD__
+#include "hip/hip_ext.h"
+#endif
+#include <iostream>
+#include <fstream>
+#include <chrono>
+#include <algorithm>
+#include <atomic>
+#include <thread>
+#include <future>
+#include <functional>
+#include <vector>
+#define THREADS 8
+#define MAX_NUM_THREADS 512
+
+#include "test_common.h"
+
+#define NUM_GROUPS 1
+#define GROUP_SIZE 1
+#define WARMUP_RUN_COUNT 10
+#define TIMING_RUN_COUNT 100
+#define TOTAL_RUN_COUNT WARMUP_RUN_COUNT + TIMING_RUN_COUNT
+#define FILENAME "empty_kernel.code"
+#define kernel_name "EmptyKernel"
+
+void hipModuleLaunchKernel_enqueue(std::atomic_int* shared, int max_threads)
+{
+    //resources necessary for this thread
+    hipStream_t stream;
+    HIPCHECK(hipStreamCreate(&stream));
+    hipModule_t module;
+    hipFunction_t function;
+
+    HIPCHECK(hipModuleLoad(&module, FILENAME));
+    HIPCHECK(hipModuleGetFunction(&function, module, kernel_name));
+
+    void* kernel_params = nullptr;
+    std::array<float, TOTAL_RUN_COUNT> results;
+
+    //synchronize all threads, before running
+    int tid = shared->fetch_add(1, std::memory_order_release);
+    while (max_threads != shared->load(std::memory_order_acquire)) {}
+
+    for (auto i = 0; i < TOTAL_RUN_COUNT; ++i) {
+        HIPCHECK(hipModuleLaunchKernel(function, 1, 1, 1, 1, 1, 1, 0, stream, &kernel_params, nullptr));
+    }
+    HIPCHECK(hipModuleUnload(module));
+    HIPCHECK(hipStreamDestroy(stream));
+}
+
+// thread pool
+struct thread_pool {
+    thread_pool(int total_threads) : max_threads(total_threads) {
+    }
+    void start(std::function<void(std::atomic_int*, int)> f) {
+        for (int i = 0; i < max_threads; ++i) {
+            threads.push_back(std::async(std::launch::async, f, &shared, max_threads));
+        }
+    }
+    void finish() {
+        for (auto&&thread : threads) {
+            thread.get();
+        }
+        threads.clear();
+        shared = 0;
+    }
+    ~thread_pool() {
+        finish();
+    }
+private:
+    std::atomic_int shared {0};
+    std::vector<char> buffer;
+    std::vector<std::future<void>> threads;
+    int max_threads = 1;
+};
+
+
+int main(int argc, char* argv[])
+{
+    int max_threads = min(THREADS * std::thread::hardware_concurrency(), MAX_NUM_THREADS);
+    thread_pool task(max_threads);
+
+    task.start(hipModuleLaunchKernel_enqueue);
+    task.finish();
+
+    passed();
+}