| // Copyright 2017 Google Inc. |
| // |
| // 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_aarch64.h" |
| #include "filesystem_for_testing.h" |
| #include "hwcaps_for_testing.h" |
| |
| #include "gtest/gtest.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_TRUE(info.features.aes); |
| EXPECT_FALSE(info.features.pmull); |
| EXPECT_FALSE(info.features.sha1); |
| EXPECT_FALSE(info.features.sha2); |
| EXPECT_FALSE(info.features.crc32); |
| } |
| |
| 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.aes); |
| EXPECT_TRUE(info.features.pmull); |
| EXPECT_TRUE(info.features.sha1); |
| EXPECT_TRUE(info.features.sha2); |
| EXPECT_TRUE(info.features.crc32); |
| } |
| |
| } // namespace |
| } // namespace cpu_features |