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/*
* Copyright (C) 2026 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/os_interface/windows/wddm_allocation.h"
#include "shared/source/os_interface/windows/wddm_memory_manager.h"
#include "shared/test/common/mocks/mock_execution_environment.h"
#include "shared/test/common/mocks/mock_wddm.h"
#include "shared/test/common/os_interface/windows/mock_wddm_memory_manager.h"
#include "shared/test/common/os_interface/windows/wddm_fixture.h"
#include "gtest/gtest.h"
using namespace NEO;
struct WddmAllocationViewTest : public ::testing::Test {
void SetUp() override {
executionEnvironment = std::make_unique<MockExecutionEnvironment>();
executionEnvironment->prepareRootDeviceEnvironments(1);
executionEnvironment->rootDeviceEnvironments[0]->setHwInfoAndInitHelpers(defaultHwInfo.get());
executionEnvironment->rootDeviceEnvironments[0]->initGmm();
wddm = static_cast<WddmMock *>(Wddm::createWddm(nullptr, *executionEnvironment->rootDeviceEnvironments[0]));
executionEnvironment->rootDeviceEnvironments[0]->osInterface = std::make_unique<OSInterface>();
executionEnvironment->rootDeviceEnvironments[0]->osInterface->setDriverModel(std::unique_ptr<DriverModel>(wddm));
wddm->init();
executionEnvironment->rootDeviceEnvironments[0]->memoryOperationsInterface = std::make_unique<WddmMemoryOperationsHandler>(wddm);
memoryManager = std::make_unique<MockWddmMemoryManager>(*executionEnvironment);
parentAllocation = std::make_unique<WddmAllocation>(0u, 1u, AllocationType::buffer, cpuPtr, gpuAddress, allocationSize, nullptr, MemoryPool::localMemory, 0u, 1u);
}
const size_t allocationSize = 4096u;
const size_t viewOffset = 1024u;
const size_t viewSize = 512u;
const uint64_t gpuAddress = 0x1000000u;
void *cpuPtr = reinterpret_cast<void *>(0x2000000u);
std::unique_ptr<MockExecutionEnvironment> executionEnvironment;
std::unique_ptr<MockWddmMemoryManager> memoryManager;
WddmMock *wddm = nullptr;
std::unique_ptr<WddmAllocation> parentAllocation;
};
TEST_F(WddmAllocationViewTest, whenCreatingViewThenReturnsWddmAllocation) {
std::unique_ptr<GraphicsAllocation> view(parentAllocation->createView(viewOffset, viewSize));
ASSERT_NE(nullptr, view);
EXPECT_TRUE(view->isView());
EXPECT_EQ(parentAllocation.get(), view->getParentAllocation());
}
TEST_F(WddmAllocationViewTest, whenCreatingViewThenViewHasCorrectAddresses) {
std::unique_ptr<GraphicsAllocation> view(parentAllocation->createView(viewOffset, viewSize));
EXPECT_EQ(gpuAddress + viewOffset, view->getGpuAddress());
EXPECT_EQ(ptrOffset(cpuPtr, viewOffset), view->getUnderlyingBuffer());
EXPECT_EQ(viewSize, view->getUnderlyingBufferSize());
}
TEST_F(WddmAllocationViewTest, whenPeekInternalHandleOnViewThenDelegatesToParent) {
auto view = std::unique_ptr<WddmAllocation>(static_cast<WddmAllocation *>(parentAllocation->createView(viewOffset, viewSize)));
uint64_t viewHandle = 0;
uint64_t parentHandle = 0;
int viewResult = view->peekInternalHandle(memoryManager.get(), viewHandle);
int parentResult = parentAllocation->peekInternalHandle(memoryManager.get(), parentHandle);
// Verify view delegates to parent by checking same results
EXPECT_EQ(parentResult, viewResult);
EXPECT_EQ(parentHandle, viewHandle);
}
TEST_F(WddmAllocationViewTest, whenCreateInternalHandleOnViewThenDelegatesToParent) {
const D3DKMT_HANDLE expectedHandle = 0x1234u;
parentAllocation->setDefaultHandle(expectedHandle);
auto view = std::unique_ptr<WddmAllocation>(static_cast<WddmAllocation *>(parentAllocation->createView(viewOffset, viewSize)));
uint64_t handle = 0;
int result = view->createInternalHandle(memoryManager.get(), 0u, handle);
EXPECT_EQ(0, result);
}
TEST_F(WddmAllocationViewTest, whenClearInternalHandleOnViewThenDelegatesToParent) {
const D3DKMT_HANDLE expectedHandle = 0x1234u;
parentAllocation->setDefaultHandle(expectedHandle);
auto view = std::unique_ptr<WddmAllocation>(static_cast<WddmAllocation *>(parentAllocation->createView(viewOffset, viewSize)));
view->clearInternalHandle(0u);
}
TEST_F(WddmAllocationViewTest, whenFreeingViewAllocationThenMemoryManagerReturnsEarly) {
auto view = parentAllocation->createView(viewOffset, viewSize);
memoryManager->freeGraphicsMemory(view);
// View was not deleted by freeGraphicsMemory
delete view;
// Parent should still be valid
EXPECT_FALSE(parentAllocation->isView());
EXPECT_EQ(allocationSize, parentAllocation->getUnderlyingBufferSize());
}
TEST_F(WddmAllocationViewTest, whenCreatingViewThenViewInheritsHandles) {
const D3DKMT_HANDLE expectedHandle = 0x5678u;
parentAllocation->setDefaultHandle(expectedHandle);
auto view = std::unique_ptr<WddmAllocation>(static_cast<WddmAllocation *>(parentAllocation->createView(viewOffset, viewSize)));
EXPECT_EQ(parentAllocation->getDefaultHandle(), view->getDefaultHandle());
}
TEST_F(WddmAllocationViewTest, whenCreatingViewThenViewInheritsResourceHandle) {
const D3DKMT_HANDLE resourceHandle = 0xABCDu;
parentAllocation->setResourceHandle(resourceHandle);
auto view = std::unique_ptr<WddmAllocation>(static_cast<WddmAllocation *>(parentAllocation->createView(viewOffset, viewSize)));
EXPECT_EQ(resourceHandle, view->getResourceHandle());
}
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