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/*
* Copyright (C) 2022-2024 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/helpers/constants.h"
#include "shared/source/os_interface/linux/cache_info.h"
#include "shared/source/os_interface/product_helper.h"
#include "shared/test/common/helpers/debug_manager_state_restore.h"
#include "shared/test/common/helpers/default_hw_info.h"
#include "shared/test/common/libult/linux/drm_query_mock.h"
#include "shared/test/common/mocks/mock_execution_environment.h"
#include "shared/test/common/os_interface/linux/drm_mock_cache_info.h"
#include "gtest/gtest.h"
using namespace NEO;
TEST(DrmCacheInfoTest, givenCacheRegionsExistsWhenCallingSetUpCacheInfoThenCacheInfoIsCreatedAndReturnsMaxReservationCacheLimits) {
auto executionEnvironment = std::make_unique<MockExecutionEnvironment>();
DrmQueryMock drm(*executionEnvironment->rootDeviceEnvironments[0]);
auto &productHelper = executionEnvironment->rootDeviceEnvironments[0]->getHelper<ProductHelper>();
drm.setupCacheInfo(*defaultHwInfo.get());
auto cacheInfo = drm.getCacheInfo();
EXPECT_NE(nullptr, cacheInfo);
if (productHelper.getNumCacheRegions() == 0) {
EXPECT_EQ(0u, cacheInfo->getMaxReservationCacheSize());
EXPECT_EQ(0u, cacheInfo->getMaxReservationNumCacheRegions());
EXPECT_EQ(0u, cacheInfo->getMaxReservationNumWays());
} else {
const GT_SYSTEM_INFO *gtSysInfo = &defaultHwInfo->gtSystemInfo;
constexpr uint16_t maxNumWays = 32;
constexpr uint16_t globalReservationLimit = 16;
constexpr uint16_t clientReservationLimit = 8;
constexpr uint16_t maxReservationNumWays = std::min(globalReservationLimit, clientReservationLimit);
const size_t totalCacheSize = gtSysInfo->L3CacheSizeInKb * MemoryConstants::kiloByte;
const size_t maxReservationCacheSize = (totalCacheSize * maxReservationNumWays) / maxNumWays;
const size_t maxReservationNumCacheRegions = productHelper.getNumCacheRegions() - 1;
EXPECT_EQ(maxReservationCacheSize, cacheInfo->getMaxReservationCacheSize());
EXPECT_EQ(maxReservationNumCacheRegions, cacheInfo->getMaxReservationNumCacheRegions());
EXPECT_EQ(maxReservationNumWays, cacheInfo->getMaxReservationNumWays());
}
}
TEST(DrmCacheInfoTest, givenDebugFlagSetWhenCallingSetUpCacheInfoThenCacheInfoIsCreatedWithoutValues) {
DebugManagerStateRestore restorer;
debugManager.flags.ClosEnabled.set(0);
auto executionEnvironment = std::make_unique<MockExecutionEnvironment>();
DrmQueryMock drm(*executionEnvironment->rootDeviceEnvironments[0]);
drm.setupCacheInfo(*defaultHwInfo.get());
EXPECT_NE(nullptr, drm.getCacheInfo());
auto cacheInfo = drm.getCacheInfo();
EXPECT_EQ(0u, cacheInfo->getMaxReservationCacheSize());
EXPECT_EQ(0u, cacheInfo->getMaxReservationNumCacheRegions());
EXPECT_EQ(0u, cacheInfo->getMaxReservationNumWays());
}
TEST(DrmCacheInfoTest, givenCacheInfoCreatedWhenGetCacheRegionSucceedsToReserveCacheRegionThenReturnTrue) {
auto executionEnvironment = std::make_unique<MockExecutionEnvironment>();
DrmQueryMock drm(*executionEnvironment->rootDeviceEnvironments[0]);
CacheInfo cacheInfo(*drm.getIoctlHelper(), 32 * MemoryConstants::kiloByte, 2, 32);
size_t cacheReservationSize = cacheInfo.getMaxReservationCacheSize();
EXPECT_TRUE(cacheInfo.getCacheRegion(cacheReservationSize, CacheRegion::region1));
EXPECT_EQ(CacheRegion::region1, cacheInfo.freeCacheRegion(CacheRegion::region1));
}
TEST(DrmCacheInfoTest, givenCacheInfoCreatedWhenGetCacheRegionFailsToReserveCacheRegionThenReturnFalse) {
auto executionEnvironment = std::make_unique<MockExecutionEnvironment>();
DrmQueryMock drm(*executionEnvironment->rootDeviceEnvironments[0]);
CacheInfo cacheInfo(*drm.getIoctlHelper(), 32 * MemoryConstants::kiloByte, 2, 32);
size_t cacheReservationSize = cacheInfo.getMaxReservationCacheSize();
drm.context.closIndex = 0xFFFF;
EXPECT_FALSE(cacheInfo.getCacheRegion(cacheReservationSize, CacheRegion::region1));
EXPECT_EQ(CacheRegion::none, cacheInfo.freeCacheRegion(CacheRegion::region1));
}
TEST(DrmCacheInfoTest, givenCacheInfoWithReservedCacheRegionWhenGetCacheRegionIsCalledForReservedCacheRegionThenReturnTrue) {
auto executionEnvironment = std::make_unique<MockExecutionEnvironment>();
DrmQueryMock drm(*executionEnvironment->rootDeviceEnvironments[0]);
CacheInfo cacheInfo(*drm.getIoctlHelper(), 32 * MemoryConstants::kiloByte, 2, 32);
size_t cacheReservationSize = cacheInfo.getMaxReservationCacheSize();
EXPECT_EQ(CacheRegion::region1, cacheInfo.reserveCacheRegion(cacheReservationSize));
EXPECT_TRUE(cacheInfo.getCacheRegion(cacheReservationSize, CacheRegion::region1));
EXPECT_EQ(CacheRegion::region1, cacheInfo.freeCacheRegion(CacheRegion::region1));
}
TEST(DrmCacheInfoTest, givenCacheInfoCreatedWhenGetCacheRegionIsCalledForReservableRegionsWithRegionSizesInverselyProportionalToNumCacheRegionsThenReturnTrue) {
auto executionEnvironment = std::make_unique<MockExecutionEnvironment>();
DrmQueryMock drm(*executionEnvironment->rootDeviceEnvironments[0]);
CacheInfo cacheInfo(*drm.getIoctlHelper(), 32 * MemoryConstants::kiloByte, 2, 32);
size_t regionSize = cacheInfo.getMaxReservationCacheSize() / cacheInfo.getMaxReservationNumCacheRegions();
EXPECT_TRUE(cacheInfo.getCacheRegion(regionSize, CacheRegion::region1));
EXPECT_TRUE(cacheInfo.getCacheRegion(regionSize, CacheRegion::region2));
EXPECT_EQ(CacheRegion::region2, cacheInfo.freeCacheRegion(CacheRegion::region2));
EXPECT_EQ(CacheRegion::region1, cacheInfo.freeCacheRegion(CacheRegion::region1));
}
TEST(DrmCacheInfoTest, givenCacheInfoWhenSpecificNumCacheWaysIsRequestedThenReserveAppropriateCacheSize) {
constexpr uint16_t maxNumCacheWays = 32;
DebugManagerStateRestore restorer;
debugManager.flags.ClosNumCacheWays.set(maxNumCacheWays / 2);
auto executionEnvironment = std::make_unique<MockExecutionEnvironment>();
DrmQueryMock drm(*executionEnvironment->rootDeviceEnvironments[0]);
MockCacheInfo cacheInfo(*drm.getIoctlHelper(), 32 * MemoryConstants::kiloByte, 2, maxNumCacheWays);
size_t maxReservationCacheSize = cacheInfo.getMaxReservationCacheSize();
EXPECT_EQ(CacheRegion::region1, cacheInfo.reserveCacheRegion(maxReservationCacheSize));
EXPECT_TRUE(cacheInfo.isRegionReserved(CacheRegion::region1, maxReservationCacheSize));
auto cacheRegion = cacheInfo.cacheRegionsReserved.begin();
EXPECT_EQ(CacheRegion::region1, cacheRegion->first);
EXPECT_EQ(maxReservationCacheSize / 2, cacheRegion->second);
EXPECT_EQ(CacheRegion::region1, cacheInfo.freeCacheRegion(CacheRegion::region1));
}
TEST(DrmCacheInfoTest, givenCacheInfoWhenNumCacheWaysIsExceededThenDontReserveCacheRegion) {
constexpr uint16_t maxNumCacheWays = 32;
auto executionEnvironment = std::make_unique<MockExecutionEnvironment>();
DrmQueryMock drm(*executionEnvironment->rootDeviceEnvironments[0]);
MockCacheInfo cacheInfo(*drm.getIoctlHelper(), 32 * MemoryConstants::kiloByte, 2, maxNumCacheWays);
size_t maxReservationCacheSize = cacheInfo.getMaxReservationCacheSize();
EXPECT_EQ(CacheRegion::region1, cacheInfo.reserveCacheRegion(maxReservationCacheSize));
EXPECT_TRUE(cacheInfo.isRegionReserved(CacheRegion::region1, maxReservationCacheSize));
EXPECT_EQ(CacheRegion::none, cacheInfo.reserveCacheRegion(maxReservationCacheSize));
EXPECT_FALSE(cacheInfo.isRegionReserved(CacheRegion::region2, maxReservationCacheSize));
}
TEST(DrmCacheInfoTest, givenCacheInfoCreatedWhenFreeCacheRegionIsCalledForNonReservedRegionThenItFails) {
auto executionEnvironment = std::make_unique<MockExecutionEnvironment>();
DrmQueryMock drm(*executionEnvironment->rootDeviceEnvironments[0]);
MockCacheInfo cacheInfo(*drm.getIoctlHelper(), 32 * MemoryConstants::kiloByte, 2, 32);
cacheInfo.cacheRegionsReserved.insert({CacheRegion::region1, MemoryConstants::kiloByte});
EXPECT_EQ(CacheRegion::none, cacheInfo.freeCacheRegion(CacheRegion::region1));
}
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