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// Copyright 2017 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "cpuinfo_arm.h"
#include "filesystem_for_testing.h"
#include "gtest/gtest.h"
#include "hwcaps_for_testing.h"
namespace cpu_features {
namespace {
TEST(CpuinfoArmTest, FromHardwareCap) {
ResetHwcaps();
SetHardwareCapabilities(ARM_HWCAP_NEON, ARM_HWCAP2_AES | ARM_HWCAP2_CRC32);
GetEmptyFilesystem(); // disabling /proc/cpuinfo
const auto info = GetArmInfo();
EXPECT_TRUE(info.features.vfp); // triggered by vfpv3
EXPECT_TRUE(info.features.vfpv3); // triggered by neon
EXPECT_TRUE(info.features.neon);
EXPECT_TRUE(info.features.aes);
EXPECT_TRUE(info.features.crc32);
EXPECT_FALSE(info.features.vfpv4);
EXPECT_FALSE(info.features.iwmmxt);
EXPECT_FALSE(info.features.crunch);
EXPECT_FALSE(info.features.thumbee);
EXPECT_FALSE(info.features.vfpv3d16);
EXPECT_FALSE(info.features.idiva);
EXPECT_FALSE(info.features.idivt);
EXPECT_FALSE(info.features.pmull);
EXPECT_FALSE(info.features.sha1);
EXPECT_FALSE(info.features.sha2);
// check some random features with EnumValue():
EXPECT_TRUE(GetArmFeaturesEnumValue(&info.features, ARM_VFP));
EXPECT_FALSE(GetArmFeaturesEnumValue(&info.features, ARM_VFPV4));
// out of bound EnumValue() check
EXPECT_FALSE(GetArmFeaturesEnumValue(&info.features, (ArmFeaturesEnum)~0x0));
}
TEST(CpuinfoArmTest, ODroidFromCpuInfo) {
ResetHwcaps();
auto& fs = GetEmptyFilesystem();
fs.CreateFile("/proc/cpuinfo", R"(processor : 0
model name : ARMv7 Processor rev 3 (v71)
BogoMIPS : 120.00
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x2
CPU part : 0xc0f
CPU revision : 3)");
const auto info = GetArmInfo();
EXPECT_EQ(info.implementer, 0x41);
EXPECT_EQ(info.variant, 0x2);
EXPECT_EQ(info.part, 0xc0f);
EXPECT_EQ(info.revision, 3);
EXPECT_EQ(info.architecture, 7);
EXPECT_FALSE(info.features.swp);
EXPECT_TRUE(info.features.half);
EXPECT_TRUE(info.features.thumb);
EXPECT_FALSE(info.features._26bit);
EXPECT_TRUE(info.features.fastmult);
EXPECT_FALSE(info.features.fpa);
EXPECT_TRUE(info.features.vfp);
EXPECT_TRUE(info.features.edsp);
EXPECT_FALSE(info.features.java);
EXPECT_FALSE(info.features.iwmmxt);
EXPECT_FALSE(info.features.crunch);
EXPECT_FALSE(info.features.thumbee);
EXPECT_TRUE(info.features.neon);
EXPECT_TRUE(info.features.vfpv3);
EXPECT_FALSE(info.features.vfpv3d16);
EXPECT_TRUE(info.features.tls);
EXPECT_TRUE(info.features.vfpv4);
EXPECT_TRUE(info.features.idiva);
EXPECT_TRUE(info.features.idivt);
EXPECT_TRUE(info.features.vfpd32);
EXPECT_TRUE(info.features.lpae);
EXPECT_FALSE(info.features.evtstrm);
EXPECT_FALSE(info.features.aes);
EXPECT_FALSE(info.features.pmull);
EXPECT_FALSE(info.features.sha1);
EXPECT_FALSE(info.features.sha2);
EXPECT_FALSE(info.features.crc32);
}
// Linux test-case
TEST(CpuinfoArmTest, RaspberryPiZeroFromCpuInfo) {
ResetHwcaps();
auto& fs = GetEmptyFilesystem();
fs.CreateFile("/proc/cpuinfo", R"(processor : 0
model name : ARMv6-compatible processor rev 7 (v6l)
BogoMIPS : 697.95
Features : half thumb fastmult vfp edsp java tls
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xb76
CPU revision : 7
Hardware : BCM2835
Revision : 9000c1
Serial : 000000006cd946f3)");
const auto info = GetArmInfo();
EXPECT_EQ(info.implementer, 0x41);
EXPECT_EQ(info.variant, 0x0);
EXPECT_EQ(info.part, 0xb76);
EXPECT_EQ(info.revision, 7);
EXPECT_EQ(info.architecture, 6);
EXPECT_FALSE(info.features.swp);
EXPECT_TRUE(info.features.half);
EXPECT_TRUE(info.features.thumb);
EXPECT_FALSE(info.features._26bit);
EXPECT_TRUE(info.features.fastmult);
EXPECT_FALSE(info.features.fpa);
EXPECT_TRUE(info.features.vfp);
EXPECT_TRUE(info.features.edsp);
EXPECT_TRUE(info.features.java);
EXPECT_FALSE(info.features.iwmmxt);
EXPECT_FALSE(info.features.crunch);
EXPECT_FALSE(info.features.thumbee);
EXPECT_FALSE(info.features.neon);
EXPECT_FALSE(info.features.vfpv3);
EXPECT_FALSE(info.features.vfpv3d16);
EXPECT_TRUE(info.features.tls);
EXPECT_FALSE(info.features.vfpv4);
EXPECT_FALSE(info.features.idiva);
EXPECT_FALSE(info.features.idivt);
EXPECT_FALSE(info.features.vfpd32);
EXPECT_FALSE(info.features.lpae);
EXPECT_FALSE(info.features.evtstrm);
EXPECT_FALSE(info.features.aes);
EXPECT_FALSE(info.features.pmull);
EXPECT_FALSE(info.features.sha1);
EXPECT_FALSE(info.features.sha2);
EXPECT_FALSE(info.features.crc32);
}
TEST(CpuinfoArmTest, MarvellArmadaFromCpuInfo) {
ResetHwcaps();
auto& fs = GetEmptyFilesystem();
fs.CreateFile("/proc/cpuinfo", R"(processor : 0
model name : ARMv7 Processor rev 1 (v7l)
BogoMIPS : 50.00
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpd32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x4
CPU part : 0xc09
CPU revision : 1
processor : 1
model name : ARMv7 Processor rev 1 (v7l)
BogoMIPS : 50.00
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpd32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x4
CPU part : 0xc09
CPU revision : 1
Hardware : Marvell Armada 380/385 (Device Tree)
Revision : 0000
Serial : 0000000000000000)");
const auto info = GetArmInfo();
EXPECT_EQ(info.implementer, 0x41);
EXPECT_EQ(info.variant, 0x4);
EXPECT_EQ(info.part, 0xc09);
EXPECT_EQ(info.revision, 1);
EXPECT_EQ(info.architecture, 7);
EXPECT_FALSE(info.features.swp);
EXPECT_TRUE(info.features.half);
EXPECT_TRUE(info.features.thumb);
EXPECT_FALSE(info.features._26bit);
EXPECT_TRUE(info.features.fastmult);
EXPECT_FALSE(info.features.fpa);
EXPECT_TRUE(info.features.vfp);
EXPECT_TRUE(info.features.edsp);
EXPECT_FALSE(info.features.java);
EXPECT_FALSE(info.features.iwmmxt);
EXPECT_FALSE(info.features.crunch);
EXPECT_FALSE(info.features.thumbee);
EXPECT_TRUE(info.features.neon);
EXPECT_TRUE(info.features.vfpv3);
EXPECT_FALSE(info.features.vfpv3d16);
EXPECT_TRUE(info.features.tls);
EXPECT_FALSE(info.features.vfpv4);
EXPECT_FALSE(info.features.idiva);
EXPECT_FALSE(info.features.idivt);
EXPECT_TRUE(info.features.vfpd32);
EXPECT_FALSE(info.features.lpae);
EXPECT_FALSE(info.features.evtstrm);
EXPECT_FALSE(info.features.aes);
EXPECT_FALSE(info.features.pmull);
EXPECT_FALSE(info.features.sha1);
EXPECT_FALSE(info.features.sha2);
EXPECT_FALSE(info.features.crc32);
}
// Android test-case
// http://code.google.com/p/android/issues/detail?id=10812
TEST(CpuinfoArmTest, InvalidArmv7) {
ResetHwcaps();
auto& fs = GetEmptyFilesystem();
fs.CreateFile("/proc/cpuinfo",
R"(Processor : ARMv6-compatible processor rev 6 (v6l)
BogoMIPS : 199.47
Features : swp half thumb fastmult vfp edsp java
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xb76
CPU revision : 6
Hardware : SPICA
Revision : 0020
Serial : 33323613546d00ec )");
const auto info = GetArmInfo();
EXPECT_EQ(info.architecture, 6);
EXPECT_TRUE(info.features.swp);
EXPECT_TRUE(info.features.half);
EXPECT_TRUE(info.features.thumb);
EXPECT_FALSE(info.features._26bit);
EXPECT_TRUE(info.features.fastmult);
EXPECT_FALSE(info.features.fpa);
EXPECT_TRUE(info.features.vfp);
EXPECT_TRUE(info.features.edsp);
EXPECT_TRUE(info.features.java);
EXPECT_FALSE(info.features.iwmmxt);
EXPECT_FALSE(info.features.crunch);
EXPECT_FALSE(info.features.thumbee);
EXPECT_FALSE(info.features.neon);
EXPECT_FALSE(info.features.vfpv3);
EXPECT_FALSE(info.features.vfpv3d16);
EXPECT_FALSE(info.features.tls);
EXPECT_FALSE(info.features.vfpv4);
EXPECT_FALSE(info.features.idiva);
EXPECT_FALSE(info.features.idivt);
EXPECT_FALSE(info.features.vfpd32);
EXPECT_FALSE(info.features.lpae);
EXPECT_FALSE(info.features.evtstrm);
EXPECT_FALSE(info.features.aes);
EXPECT_FALSE(info.features.pmull);
EXPECT_FALSE(info.features.sha1);
EXPECT_FALSE(info.features.sha2);
EXPECT_FALSE(info.features.crc32);
}
// Android test-case
// https://crbug.com/341598.
TEST(CpuinfoArmTest, InvalidNeon) {
ResetHwcaps();
auto& fs = GetEmptyFilesystem();
fs.CreateFile("/proc/cpuinfo",
R"(Processor: ARMv7 Processory rev 0 (v71)
processor: 0
BogoMIPS: 13.50
Processor: 1
BogoMIPS: 13.50
Features: swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt
CPU implementer : 0x51
CPU architecture: 7
CPU variant: 0x1
CPU part: 0x04d
CPU revision: 0
Hardware: SAMSUNG M2
Revision: 0010
Serial: 00001e030000354e)");
const auto info = GetArmInfo();
EXPECT_TRUE(info.features.swp);
EXPECT_FALSE(info.features.neon);
}
// The Nexus 4 (Qualcomm Krait) kernel configuration forgets to report IDIV
// support.
TEST(CpuinfoArmTest, Nexus4_0x510006f2) {
ResetHwcaps();
auto& fs = GetEmptyFilesystem();
fs.CreateFile("/proc/cpuinfo",
R"(CPU implementer : 0x51
CPU architecture: 7
CPU variant : 0x0
CPU part : 0x6f
CPU revision : 2)");
const auto info = GetArmInfo();
EXPECT_TRUE(info.features.idiva);
EXPECT_TRUE(info.features.idivt);
EXPECT_EQ(GetArmCpuId(&info), 0x510006f2);
}
// The Nexus 4 (Qualcomm Krait) kernel configuration forgets to report IDIV
// support.
TEST(CpuinfoArmTest, Nexus4_0x510006f3) {
ResetHwcaps();
auto& fs = GetEmptyFilesystem();
fs.CreateFile("/proc/cpuinfo",
R"(CPU implementer : 0x51
CPU architecture: 7
CPU variant : 0x0
CPU part : 0x6f
CPU revision : 3)");
const auto info = GetArmInfo();
EXPECT_TRUE(info.features.idiva);
EXPECT_TRUE(info.features.idivt);
EXPECT_EQ(GetArmCpuId(&info), 0x510006f3);
}
// The emulator-specific Android 4.2 kernel fails to report support for the
// 32-bit ARM IDIV instruction. Technically, this is a feature of the virtual
// CPU implemented by the emulator.
TEST(CpuinfoArmTest, EmulatorSpecificIdiv) {
ResetHwcaps();
auto& fs = GetEmptyFilesystem();
fs.CreateFile("/proc/cpuinfo",
R"(Processor : ARMv7 Processor rev 0 (v7l)
BogoMIPS : 629.14
Features : swp half thumb fastmult vfp edsp neon vfpv3
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xc08
CPU revision : 0
Hardware : Goldfish
Revision : 0000
Serial : 0000000000000000)");
const auto info = GetArmInfo();
EXPECT_TRUE(info.features.idiva);
}
} // namespace
} // namespace cpu_features
|
