From b0943c82cad85bd42750f599830a3d0b5bdd5c88 Mon Sep 17 00:00:00 2001
From: Marko Arandjelovic <marandje@amd.com>
Date: Thu, 25 Jul 2024 12:04:07 +0200
Subject: [PATCH] SWDEV-475688 - Add unit test for hipHostAlloc

Change-Id: Id414d16651529983674b4f90391e0913feab0440
---
 catch/unit/memory/CMakeLists.txt  |   3 +-
 catch/unit/memory/hipHostAlloc.cc | 104 ++++++++++++++++++++++++++++++
 2 files changed, 106 insertions(+), 1 deletion(-)
 create mode 100644 catch/unit/memory/hipHostAlloc.cc

diff --git a/catch/unit/memory/CMakeLists.txt b/catch/unit/memory/CMakeLists.txt
index 2717d12f7a..37badbc90a 100644
--- a/catch/unit/memory/CMakeLists.txt
+++ b/catch/unit/memory/CMakeLists.txt
@@ -175,7 +175,8 @@ set(TEST_SRC
     hipMemRangeGetAttributes_old.cc
     hipMemGetAddressRange.cc
     hipMallocMipmappedArray.cc
-    hipFreeMipmappedArray.cc)
+    hipFreeMipmappedArray.cc
+    hipHostAlloc.cc)
 
 if(HIP_PLATFORM MATCHES "amd")
   set(TEST_SRC
diff --git a/catch/unit/memory/hipHostAlloc.cc b/catch/unit/memory/hipHostAlloc.cc
new file mode 100644
index 0000000000..4e367d5dd4
--- /dev/null
+++ b/catch/unit/memory/hipHostAlloc.cc
@@ -0,0 +1,104 @@
+
+/*
+Copyright (c) 2024 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.
+*/
+
+#include <hip_test_common.hh>
+
+static __global__ void write_integer(int* memory, int value) {
+  if (memory) {
+    *memory = value;
+  }
+}
+
+int get_flags() {
+  return GENERATE(hipHostMallocDefault,
+                  hipHostMallocPortable,
+                  hipHostMallocMapped,
+                  hipHostMallocWriteCombined,
+                  hipHostMallocPortable | hipHostMallocMapped,
+                  hipHostMallocPortable | hipHostMallocWriteCombined,
+                  hipHostMallocMapped | hipHostMallocWriteCombined,
+                  hipHostMallocPortable | hipHostMallocMapped | hipHostMallocWriteCombined);
+}
+
+TEST_CASE("Unit_hipHostAlloc_Positive") {
+  int* host_memory = nullptr;
+  int flags = get_flags();
+
+  HIP_CHECK(hipHostAlloc(reinterpret_cast<void**>(&host_memory), sizeof(int), flags));
+
+  REQUIRE(host_memory != nullptr);
+
+  HIP_CHECK(hipFreeHost(host_memory));
+}
+
+TEST_CASE("Unit_hipHostAlloc_DataValidation") {
+  int validation_number = 10;
+  int* host_memory = nullptr;
+  int* device_memory = nullptr;
+  hipEvent_t event = nullptr;
+  int flags = get_flags();
+
+  HIP_CHECK(hipHostAlloc(reinterpret_cast<void**>(&host_memory), sizeof(int), flags));
+  HIP_CHECK(hipHostGetDevicePointer(reinterpret_cast<void**>(&device_memory), host_memory, 0));
+
+  write_integer<<<1, 1>>>(device_memory, validation_number);
+
+  SECTION("device sync") {
+    HIP_CHECK(hipDeviceSynchronize());
+  }
+
+  SECTION("event sync") {
+    HIP_CHECK(hipEventCreateWithFlags(&event, 0));
+    HIP_CHECK(hipEventRecord(event, nullptr));
+    HIP_CHECK(hipEventSynchronize(event));
+  }
+
+  SECTION("stream sync") {
+    HIP_CHECK(hipStreamSynchronize(nullptr));
+  }
+
+  REQUIRE(*host_memory == validation_number);
+
+  if (event != nullptr) {
+    HIP_CHECK(hipEventDestroy(event));
+  }
+
+  HIP_CHECK(hipFreeHost(host_memory));
+}
+
+TEST_CASE("Unit_hipHostAlloc_Negative") {
+  int* host_memory = nullptr;
+  int flags = get_flags();
+
+  SECTION("host memory is nullptr") {
+    HIP_CHECK_ERROR(hipHostAlloc(nullptr, sizeof(int), flags), hipErrorInvalidValue);
+  }
+
+  SECTION("size is negative") {
+    HIP_CHECK_ERROR(hipHostAlloc(reinterpret_cast<void**>(&host_memory), -1, flags),
+                    hipErrorOutOfMemory);
+  }
+
+  SECTION("flag is out of range") {
+    unsigned int flag = 999;
+    HIP_CHECK_ERROR(hipHostAlloc(reinterpret_cast<void**>(&host_memory), sizeof(int), flag),
+                    hipErrorInvalidValue);
+  }
+}