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/*
* Copyright (C) 2017-2020 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/helpers/aligned_memory.h"
#include "shared/source/memory_manager/address_mapper.h"
#include "test.h"
#include "gtest/gtest.h"
#include <memory>
using namespace NEO;
class AddressMapperFixture {
public:
void SetUp() {
mapper = new AddressMapper();
}
void TearDown() {
delete mapper;
}
AddressMapper *mapper;
};
typedef Test<AddressMapperFixture> AddressMapperTests;
TEST_F(AddressMapperTests, GivenAlignedPointersWhenMappingThenPointersAreAligned) {
uint32_t m1 = mapper->map((void *)0x1000, MemoryConstants::pageSize);
EXPECT_EQ(0x1000u, m1);
uint32_t m2 = mapper->map((void *)0x3000, MemoryConstants::pageSize);
EXPECT_EQ(0x2000u, m2);
uint32_t m3 = mapper->map((void *)0x1000, MemoryConstants::pageSize);
EXPECT_EQ(0x1000u, m3);
}
TEST_F(AddressMapperTests, GivenUnalignedPointersWhenMappingThenPointersAreAligned) {
void *vm1 = (void *)(0x1100);
void *vm2 = (void *)(0x4100);
uint32_t m1 = mapper->map(vm1, MemoryConstants::pageSize);
EXPECT_EQ(0x1000u, m1);
uint32_t m2 = mapper->map(vm2, MemoryConstants::pageSize);
EXPECT_EQ(0x3000u, m2);
uint32_t m3 = mapper->map(vm1, MemoryConstants::pageSize);
EXPECT_EQ(0x1000u, m3);
}
TEST_F(AddressMapperTests, WhenResizingThenPointerIsAligned) {
uint32_t m1 = mapper->map((void *)0x1000, MemoryConstants::pageSize);
EXPECT_EQ(0x1000u, m1);
uint32_t m2 = mapper->map((void *)0x1000, 2 * MemoryConstants::pageSize);
EXPECT_EQ(0x2000u, m2);
}
TEST_F(AddressMapperTests, WhenUnmappingThenMappingWorksCorrectly) {
mapper->unmap((void *)0x1000);
uint32_t m1 = mapper->map((void *)0x2000, MemoryConstants::pageSize);
EXPECT_EQ(0x1000u, m1);
// no crash expected
mapper->unmap((void *)0x1000);
mapper->unmap((void *)0x2000);
uint32_t m2 = mapper->map((void *)0x2000, MemoryConstants::pageSize);
EXPECT_NE(m1, m2);
EXPECT_EQ(0x2000u, m2);
}
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