| // 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_mips.h" |
| |
| #include "filesystem_for_testing.h" |
| #include "gtest/gtest.h" |
| #include "hwcaps_for_testing.h" |
| #include "internal/stack_line_reader.h" |
| #include "internal/string_view.h" |
| |
| namespace cpu_features { |
| |
| namespace { |
| |
| void DisableHardwareCapabilities() { SetHardwareCapabilities(0, 0); } |
| |
| TEST(CpuinfoMipsTest, FromHardwareCapBoth) { |
| SetHardwareCapabilities(MIPS_HWCAP_MSA | MIPS_HWCAP_R6, 0); |
| GetEmptyFilesystem(); // disabling /proc/cpuinfo |
| const auto info = GetMipsInfo(); |
| EXPECT_TRUE(info.features.msa); |
| EXPECT_FALSE(info.features.eva); |
| EXPECT_TRUE(info.features.r6); |
| } |
| |
| TEST(CpuinfoMipsTest, FromHardwareCapOnlyOne) { |
| SetHardwareCapabilities(MIPS_HWCAP_MSA, 0); |
| GetEmptyFilesystem(); // disabling /proc/cpuinfo |
| const auto info = GetMipsInfo(); |
| EXPECT_TRUE(info.features.msa); |
| EXPECT_FALSE(info.features.eva); |
| } |
| |
| TEST(CpuinfoMipsTest, Ci40) { |
| DisableHardwareCapabilities(); |
| auto& fs = GetEmptyFilesystem(); |
| fs.CreateFile("/proc/cpuinfo", R"(system type : IMG Pistachio SoC (B0) |
| machine : IMG Marduk – Ci40 with cc2520 |
| processor : 0 |
| cpu model : MIPS interAptiv (multi) V2.0 FPU V0.0 |
| BogoMIPS : 363.72 |
| wait instruction : yes |
| microsecond timers : yes |
| tlb_entries : 64 |
| extra interrupt vector : yes |
| hardware watchpoint : yes, count: 4, address/irw mask: [0x0ffc, 0x0ffc, 0x0ffb, 0x0ffb] |
| isa : mips1 mips2 mips32r1 mips32r2 |
| ASEs implemented : mips16 dsp mt eva |
| shadow register sets : 1 |
| kscratch registers : 0 |
| package : 0 |
| core : 0 |
| VCED exceptions : not available |
| VCEI exceptions : not available |
| VPE : 0 |
| )"); |
| const auto info = GetMipsInfo(); |
| EXPECT_FALSE(info.features.msa); |
| EXPECT_TRUE(info.features.eva); |
| } |
| |
| TEST(CpuinfoMipsTest, AR7161) { |
| DisableHardwareCapabilities(); |
| auto& fs = GetEmptyFilesystem(); |
| fs.CreateFile("/proc/cpuinfo", |
| R"(system type : Atheros AR7161 rev 2 |
| machine : NETGEAR WNDR3700/WNDR3800/WNDRMAC |
| processor : 0 |
| cpu model : MIPS 24Kc V7.4 |
| BogoMIPS : 452.19 |
| wait instruction : yes |
| microsecond timers : yes |
| tlb_entries : 16 |
| extra interrupt vector : yes |
| hardware watchpoint : yes, count: 4, address/irw mask: [0x0000, 0x0f98, 0x0f78, 0x0df8] |
| ASEs implemented : mips16 |
| shadow register sets : 1 |
| kscratch registers : 0 |
| core : 0 |
| VCED exceptions : not available |
| VCEI exceptions : not available |
| )"); |
| const auto info = GetMipsInfo(); |
| EXPECT_FALSE(info.features.msa); |
| EXPECT_FALSE(info.features.eva); |
| } |
| |
| TEST(CpuinfoMipsTest, Goldfish) { |
| DisableHardwareCapabilities(); |
| auto& fs = GetEmptyFilesystem(); |
| fs.CreateFile("/proc/cpuinfo", R"(system type : MIPS-Goldfish |
| Hardware : goldfish |
| Revison : 1 |
| processor : 0 |
| cpu model : MIPS 24Kc V0.0 FPU V0.0 |
| BogoMIPS : 1042.02 |
| wait instruction : yes |
| microsecond timers : yes |
| tlb_entries : 16 |
| extra interrupt vector : yes |
| hardware watchpoint : yes, count: 1, address/irw mask: [0x0ff8] |
| ASEs implemented : |
| shadow register sets : 1 |
| core : 0 |
| VCED exceptions : not available |
| VCEI exceptions : not available |
| )"); |
| const auto info = GetMipsInfo(); |
| EXPECT_FALSE(info.features.msa); |
| EXPECT_FALSE(info.features.eva); |
| } |
| |
| } // namespace |
| } // namespace cpu_features |