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/*
* Copyright (C) 2025 Intel Corporation
* SPDX-License-Identifier: MIT
*/
#include "test/init_driver_unit_tests_common.h"
TEST_F(InitDriverUnitTest, zeInitDriversWithFakeIntelGPUAndNPU_InitGPUFirst) {
// First, initialize GPU drivers using zeInitDrivers with GPU flag
uint32_t driverCount = 0;
ze_init_driver_type_desc_t descGPU = {ZE_STRUCTURE_TYPE_INIT_DRIVER_TYPE_DESC};
descGPU.flags = ZE_INIT_DRIVER_TYPE_FLAG_GPU;
descGPU.pNext = nullptr;
// Call zeInitDrivers to init GPU drivers
ze_result_t result = zeInitDrivers(&driverCount, nullptr, &descGPU);
EXPECT_EQ(result, ZE_RESULT_SUCCESS);
if (driverCount > 0) {
std::vector<ze_driver_handle_t> gpuDrivers(driverCount);
result = zeInitDrivers(&driverCount, gpuDrivers.data(), &descGPU);
EXPECT_EQ(result, ZE_RESULT_SUCCESS);
// Make sure we can call into GPU drivers
for (uint32_t i = 0; i < driverCount; i++) {
EXPECT_NE(gpuDrivers[i], nullptr);
// Try to get devices from this GPU driver
uint32_t deviceCount = 0;
ze_result_t devResult = zeDeviceGet(gpuDrivers[i], &deviceCount, nullptr);
// Should succeed (even if 0 devices for null driver)
EXPECT_EQ(devResult, ZE_RESULT_SUCCESS);
}
// Verify that GPU drivers were initialized in the context
bool foundGPUDriver = false;
for (const auto& driver : loader::context->zeDrivers) {
if (driver.driverType == loader::ZEL_DRIVER_TYPE_DISCRETE_GPU ||
driver.driverType == loader::ZEL_DRIVER_TYPE_GPU ||
driver.driverType == loader::ZEL_DRIVER_TYPE_INTEGRATED_GPU) {
foundGPUDriver = true;
EXPECT_TRUE(driver.ddiInitialized);
break;
}
}
EXPECT_TRUE(foundGPUDriver);
}
}
TEST_F(InitDriverUnitTest, zeInitDriversWithFakeIntelGPUAndNPU_InitNPUFirst) {
// First, initialize NPU drivers using zeInitDrivers with NPU flag
uint32_t driverCount = 0;
ze_init_driver_type_desc_t descNPU = {ZE_STRUCTURE_TYPE_INIT_DRIVER_TYPE_DESC};
descNPU.flags = ZE_INIT_DRIVER_TYPE_FLAG_NPU;
descNPU.pNext = nullptr;
// Call zeInitDrivers to init NPU drivers
ze_result_t result = zeInitDrivers(&driverCount, nullptr, &descNPU);
EXPECT_EQ(result, ZE_RESULT_SUCCESS);
if (driverCount > 0) {
std::vector<ze_driver_handle_t> npuDrivers(driverCount);
result = zeInitDrivers(&driverCount, npuDrivers.data(), &descNPU);
EXPECT_EQ(result, ZE_RESULT_SUCCESS);
// Make sure we can call into NPU drivers
for (uint32_t i = 0; i < driverCount; i++) {
EXPECT_NE(npuDrivers[i], nullptr);
// Try to get devices from this NPU driver
uint32_t deviceCount = 0;
ze_result_t devResult = zeDeviceGet(npuDrivers[i], &deviceCount, nullptr);
// Should succeed (even if 0 devices for null driver)
EXPECT_EQ(devResult, ZE_RESULT_SUCCESS);
}
// Verify that NPU drivers were initialized in the context
bool foundNPUDriver = false;
for (const auto& driver : loader::context->zeDrivers) {
printf("Driver Name: %s, Type: %u, DDI Initialized: %d\n", driver.name.c_str(), driver.driverType, driver.ddiInitialized);
if (driver.driverType == loader::ZEL_DRIVER_TYPE_NPU) {
foundNPUDriver = true;
EXPECT_TRUE(driver.ddiInitialized);
break;
}
}
EXPECT_TRUE(foundNPUDriver);
}
}
TEST_F(InitDriverUnitTest, zeInitDriversWithFakeIntelGPUAndNPU_InitGPUThenNPU) {
// Step 1: Initialize GPU drivers first
uint32_t gpuDriverCount = 0;
ze_init_driver_type_desc_t descGPU = {ZE_STRUCTURE_TYPE_INIT_DRIVER_TYPE_DESC};
descGPU.flags = ZE_INIT_DRIVER_TYPE_FLAG_GPU;
descGPU.pNext = nullptr;
ze_result_t result = zeInitDrivers(&gpuDriverCount, nullptr, &descGPU);
EXPECT_EQ(result, ZE_RESULT_SUCCESS);
std::vector<ze_driver_handle_t> gpuDrivers(gpuDriverCount);
if (gpuDriverCount > 0) {
result = zeInitDrivers(&gpuDriverCount, gpuDrivers.data(), &descGPU);
EXPECT_EQ(result, ZE_RESULT_SUCCESS);
// Verify we can call GPU driver APIs
for (uint32_t i = 0; i < gpuDriverCount; i++) {
EXPECT_NE(gpuDrivers[i], nullptr);
uint32_t deviceCount = 0;
EXPECT_EQ(ZE_RESULT_SUCCESS, zeDeviceGet(gpuDrivers[i], &deviceCount, nullptr));
}
}
// Step 2: Now initialize NPU drivers
uint32_t npuDriverCount = 0;
ze_init_driver_type_desc_t descNPU = {ZE_STRUCTURE_TYPE_INIT_DRIVER_TYPE_DESC};
descNPU.flags = ZE_INIT_DRIVER_TYPE_FLAG_NPU;
descNPU.pNext = nullptr;
result = zeInitDrivers(&npuDriverCount, nullptr, &descNPU);
EXPECT_EQ(result, ZE_RESULT_SUCCESS);
std::vector<ze_driver_handle_t> npuDrivers(npuDriverCount);
if (npuDriverCount > 0) {
result = zeInitDrivers(&npuDriverCount, npuDrivers.data(), &descNPU);
EXPECT_EQ(result, ZE_RESULT_SUCCESS);
// Verify we can call NPU driver APIs
for (uint32_t i = 0; i < npuDriverCount; i++) {
EXPECT_NE(npuDrivers[i], nullptr);
uint32_t deviceCount = 0;
EXPECT_EQ(ZE_RESULT_SUCCESS, zeDeviceGet(npuDrivers[i], &deviceCount, nullptr));
}
}
// Step 3: Verify both GPU and NPU drivers still work
// Ensure GPU drivers still respond to API calls
for (uint32_t i = 0; i < gpuDriverCount; i++) {
uint32_t deviceCount = 0;
EXPECT_EQ(ZE_RESULT_SUCCESS, zeDeviceGet(gpuDrivers[i], &deviceCount, nullptr));
}
// Ensure NPU drivers respond to API calls
for (uint32_t i = 0; i < npuDriverCount; i++) {
uint32_t deviceCount = 0;
EXPECT_EQ(ZE_RESULT_SUCCESS, zeDeviceGet(npuDrivers[i], &deviceCount, nullptr));
}
}
TEST_F(InitDriverUnitTest, zeInitWithFakeIntelGPU_ThenzeInitDriversWithNPU) {
// Step 1: Use zeInit to initialize (typically gets all drivers)
ze_result_t result = zeInit(0);
EXPECT_EQ(result, ZE_RESULT_SUCCESS);
// Get GPU drivers using zeDriverGet
uint32_t allDriverCount = 0;
result = zeDriverGet(&allDriverCount, nullptr);
EXPECT_EQ(result, ZE_RESULT_SUCCESS);
std::vector<ze_driver_handle_t> allDrivers(allDriverCount);
if (allDriverCount > 0) {
result = zeDriverGet(&allDriverCount, allDrivers.data());
EXPECT_EQ(result, ZE_RESULT_SUCCESS);
// Try calling APIs on the drivers returned by zeDriverGet
for (uint32_t i = 0; i < allDriverCount; i++) {
EXPECT_NE(allDrivers[i], nullptr);
uint32_t deviceCount = 0;
EXPECT_EQ(ZE_RESULT_SUCCESS, zeDeviceGet(allDrivers[i], &deviceCount, nullptr));
}
}
// Step 2: Now use zeInitDrivers to get NPU drivers specifically
uint32_t npuDriverCount = 0;
ze_init_driver_type_desc_t descNPU = {ZE_STRUCTURE_TYPE_INIT_DRIVER_TYPE_DESC};
descNPU.flags = ZE_INIT_DRIVER_TYPE_FLAG_NPU;
descNPU.pNext = nullptr;
result = zeInitDrivers(&npuDriverCount, nullptr, &descNPU);
EXPECT_EQ(result, ZE_RESULT_SUCCESS);
std::vector<ze_driver_handle_t> npuDrivers(npuDriverCount);
if (npuDriverCount > 0) {
result = zeInitDrivers(&npuDriverCount, npuDrivers.data(), &descNPU);
EXPECT_EQ(result, ZE_RESULT_SUCCESS);
// Verify we can call NPU driver APIs
for (uint32_t i = 0; i < npuDriverCount; i++) {
EXPECT_NE(npuDrivers[i], nullptr);
uint32_t deviceCount = 0;
EXPECT_EQ(ZE_RESULT_SUCCESS, zeDeviceGet(npuDrivers[i], &deviceCount, nullptr));
}
}
// Step 3: Verify original drivers from zeDriverGet still work
for (uint32_t i = 0; i < allDriverCount; i++) {
uint32_t deviceCount = 0;
EXPECT_EQ(ZE_RESULT_SUCCESS, zeDeviceGet(allDrivers[i], &deviceCount, nullptr));
}
}
TEST_F(InitDriverUnitTest, zeInitDriversWithAllTypes_VerifyRoutingToCorrectDriver) {
// Initialize all driver types
uint32_t allDriverCount = 0;
ze_init_driver_type_desc_t descAll = {ZE_STRUCTURE_TYPE_INIT_DRIVER_TYPE_DESC};
descAll.flags = UINT32_MAX; // All driver types
descAll.pNext = nullptr;
ze_result_t result = zeInitDrivers(&allDriverCount, nullptr, &descAll);
EXPECT_EQ(result, ZE_RESULT_SUCCESS);
std::vector<ze_driver_handle_t> allDrivers(allDriverCount);
if (allDriverCount > 0) {
result = zeInitDrivers(&allDriverCount, allDrivers.data(), &descAll);
EXPECT_EQ(result, ZE_RESULT_SUCCESS);
// Verify each driver responds to API calls
for (uint32_t i = 0; i < allDriverCount; i++) {
EXPECT_NE(allDrivers[i], nullptr);
// Call zeDeviceGet to verify routing works
uint32_t deviceCount = 0;
ze_result_t devResult = zeDeviceGet(allDrivers[i], &deviceCount, nullptr);
EXPECT_EQ(devResult, ZE_RESULT_SUCCESS);
// Try to get driver properties
ze_driver_properties_t props = {};
props.stype = ZE_STRUCTURE_TYPE_DRIVER_PROPERTIES;
ze_result_t propResult = zeDriverGetProperties(allDrivers[i], &props);
// Should succeed for properly initialized drivers
EXPECT_EQ(propResult, ZE_RESULT_SUCCESS);
}
// Verify that both GPU and NPU drivers are initialized in the context
bool foundGPUDriver = false;
bool foundNPUDriver = false;
for (const auto& driver : loader::context->zeDrivers) {
if (driver.driverType == loader::ZEL_DRIVER_TYPE_DISCRETE_GPU ||
driver.driverType == loader::ZEL_DRIVER_TYPE_GPU ||
driver.driverType == loader::ZEL_DRIVER_TYPE_INTEGRATED_GPU) {
foundGPUDriver = true;
EXPECT_TRUE(driver.ddiInitialized);
}
if (driver.driverType == loader::ZEL_DRIVER_TYPE_NPU) {
foundNPUDriver = true;
EXPECT_TRUE(driver.ddiInitialized);
}
}
// At least one type of driver should be found if we have drivers
EXPECT_TRUE(foundGPUDriver || foundNPUDriver);
}
}
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