// SPDX-FileCopyrightText: 2017 Google Inc.
// SPDX-License-Identifier: Apache-2.0

#include "cpuinfo_aarch64.h"
#include "filesystem_for_testing.h"
#include "gtest/gtest.h"
#include "hwcaps_for_testing.h"

namespace cpu_features
{
namespace
{
void DisableHardwareCapabilities() { SetHardwareCapabilities(0, 0); }

TEST(CpuinfoAarch64Test, FromHardwareCap)
{
    SetHardwareCapabilities(AARCH64_HWCAP_FP | AARCH64_HWCAP_AES, 0);
    GetEmptyFilesystem();  // disabling /proc/cpuinfo
    const auto info = GetAarch64Info();
    EXPECT_TRUE(info.features.fp);
    EXPECT_FALSE(info.features.asimd);
    EXPECT_FALSE(info.features.evtstrm);
    EXPECT_TRUE(info.features.aes);
    EXPECT_FALSE(info.features.pmull);
    EXPECT_FALSE(info.features.sha1);
    EXPECT_FALSE(info.features.sha2);
    EXPECT_FALSE(info.features.crc32);
    EXPECT_FALSE(info.features.atomics);
    EXPECT_FALSE(info.features.fphp);
    EXPECT_FALSE(info.features.asimdhp);
    EXPECT_FALSE(info.features.cpuid);
    EXPECT_FALSE(info.features.asimdrdm);
    EXPECT_FALSE(info.features.jscvt);
    EXPECT_FALSE(info.features.fcma);
    EXPECT_FALSE(info.features.lrcpc);
    EXPECT_FALSE(info.features.dcpop);
    EXPECT_FALSE(info.features.sha3);
    EXPECT_FALSE(info.features.sm3);
    EXPECT_FALSE(info.features.sm4);
    EXPECT_FALSE(info.features.asimddp);
    EXPECT_FALSE(info.features.sha512);
    EXPECT_FALSE(info.features.sve);
    EXPECT_FALSE(info.features.asimdfhm);
    EXPECT_FALSE(info.features.dit);
    EXPECT_FALSE(info.features.uscat);
    EXPECT_FALSE(info.features.ilrcpc);
    EXPECT_FALSE(info.features.flagm);
    EXPECT_FALSE(info.features.ssbs);
    EXPECT_FALSE(info.features.sb);
    EXPECT_FALSE(info.features.paca);
    EXPECT_FALSE(info.features.pacg);
}

TEST(CpuinfoAarch64Test, ARMCortexA53)
{
    DisableHardwareCapabilities();
    auto& fs = GetEmptyFilesystem();
    fs.CreateFile("/proc/cpuinfo",
        R"(Processor   : AArch64 Processor rev 3 (aarch64)
processor   : 0
processor   : 1
processor   : 2
processor   : 3
processor   : 4
processor   : 5
processor   : 6
processor   : 7
Features    : fp asimd evtstrm aes pmull sha1 sha2 crc32
CPU implementer : 0x41
CPU architecture: AArch64
CPU variant : 0x0
CPU part    : 0xd03
CPU revision    : 3)");
    const auto info = GetAarch64Info();
    EXPECT_EQ(info.implementer, 0x41);
    EXPECT_EQ(info.variant, 0x0);
    EXPECT_EQ(info.part, 0xd03);
    EXPECT_EQ(info.revision, 3);

    EXPECT_TRUE(info.features.fp);
    EXPECT_TRUE(info.features.asimd);
    EXPECT_TRUE(info.features.evtstrm);
    EXPECT_TRUE(info.features.aes);
    EXPECT_TRUE(info.features.pmull);
    EXPECT_TRUE(info.features.sha1);
    EXPECT_TRUE(info.features.sha2);
    EXPECT_TRUE(info.features.crc32);

    EXPECT_FALSE(info.features.atomics);
    EXPECT_FALSE(info.features.fphp);
    EXPECT_FALSE(info.features.asimdhp);
    EXPECT_FALSE(info.features.cpuid);
    EXPECT_FALSE(info.features.asimdrdm);
    EXPECT_FALSE(info.features.jscvt);
    EXPECT_FALSE(info.features.fcma);
    EXPECT_FALSE(info.features.lrcpc);
    EXPECT_FALSE(info.features.dcpop);
    EXPECT_FALSE(info.features.sha3);
    EXPECT_FALSE(info.features.sm3);
    EXPECT_FALSE(info.features.sm4);
    EXPECT_FALSE(info.features.asimddp);
    EXPECT_FALSE(info.features.sha512);
    EXPECT_FALSE(info.features.sve);
    EXPECT_FALSE(info.features.asimdfhm);
    EXPECT_FALSE(info.features.dit);
    EXPECT_FALSE(info.features.uscat);
    EXPECT_FALSE(info.features.ilrcpc);
    EXPECT_FALSE(info.features.flagm);
    EXPECT_FALSE(info.features.ssbs);
    EXPECT_FALSE(info.features.sb);
    EXPECT_FALSE(info.features.paca);
    EXPECT_FALSE(info.features.pacg);
}

}  // namespace
}  // namespace cpu_features