Guillaume Chatelet | 3cc8f31 | 2020-10-12 08:55:20 +0000 | [diff] [blame] | 1 | // Copyright 2017 Google LLC |
Guillaume Chatelet | 439d371 | 2018-02-01 10:03:09 +0100 | [diff] [blame] | 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | #include "cpuinfo_mips.h" |
Guillaume Chatelet | 22a5362 | 2020-09-23 11:52:20 +0200 | [diff] [blame] | 16 | |
Guillaume Chatelet | 439d371 | 2018-02-01 10:03:09 +0100 | [diff] [blame] | 17 | #include "filesystem_for_testing.h" |
Guillaume Chatelet | 22a5362 | 2020-09-23 11:52:20 +0200 | [diff] [blame] | 18 | #include "gtest/gtest.h" |
Guillaume Chatelet | 439d371 | 2018-02-01 10:03:09 +0100 | [diff] [blame] | 19 | #include "hwcaps_for_testing.h" |
| 20 | #include "internal/stack_line_reader.h" |
| 21 | #include "internal/string_view.h" |
| 22 | |
Guillaume Chatelet | 439d371 | 2018-02-01 10:03:09 +0100 | [diff] [blame] | 23 | namespace cpu_features { |
| 24 | |
| 25 | namespace { |
| 26 | |
| 27 | void DisableHardwareCapabilities() { SetHardwareCapabilities(0, 0); } |
| 28 | |
Guillaume Chatelet | 5911e96 | 2019-01-22 11:00:48 +0100 | [diff] [blame] | 29 | TEST(CpuinfoMipsTest, FromHardwareCapBoth) { |
| 30 | SetHardwareCapabilities(MIPS_HWCAP_MSA | MIPS_HWCAP_R6, 0); |
| 31 | GetEmptyFilesystem(); // disabling /proc/cpuinfo |
| 32 | const auto info = GetMipsInfo(); |
| 33 | EXPECT_TRUE(info.features.msa); |
| 34 | EXPECT_FALSE(info.features.eva); |
| 35 | EXPECT_TRUE(info.features.r6); |
| 36 | } |
| 37 | |
Guillaume Chatelet | 439d371 | 2018-02-01 10:03:09 +0100 | [diff] [blame] | 38 | TEST(CpuinfoMipsTest, FromHardwareCapOnlyOne) { |
| 39 | SetHardwareCapabilities(MIPS_HWCAP_MSA, 0); |
| 40 | GetEmptyFilesystem(); // disabling /proc/cpuinfo |
| 41 | const auto info = GetMipsInfo(); |
| 42 | EXPECT_TRUE(info.features.msa); |
| 43 | EXPECT_FALSE(info.features.eva); |
| 44 | } |
| 45 | |
| 46 | TEST(CpuinfoMipsTest, Ci40) { |
| 47 | DisableHardwareCapabilities(); |
| 48 | auto& fs = GetEmptyFilesystem(); |
| 49 | fs.CreateFile("/proc/cpuinfo", R"(system type : IMG Pistachio SoC (B0) |
| 50 | machine : IMG Marduk – Ci40 with cc2520 |
| 51 | processor : 0 |
| 52 | cpu model : MIPS interAptiv (multi) V2.0 FPU V0.0 |
| 53 | BogoMIPS : 363.72 |
| 54 | wait instruction : yes |
| 55 | microsecond timers : yes |
| 56 | tlb_entries : 64 |
| 57 | extra interrupt vector : yes |
| 58 | hardware watchpoint : yes, count: 4, address/irw mask: [0x0ffc, 0x0ffc, 0x0ffb, 0x0ffb] |
| 59 | isa : mips1 mips2 mips32r1 mips32r2 |
| 60 | ASEs implemented : mips16 dsp mt eva |
| 61 | shadow register sets : 1 |
| 62 | kscratch registers : 0 |
| 63 | package : 0 |
| 64 | core : 0 |
| 65 | VCED exceptions : not available |
| 66 | VCEI exceptions : not available |
| 67 | VPE : 0 |
| 68 | )"); |
| 69 | const auto info = GetMipsInfo(); |
| 70 | EXPECT_FALSE(info.features.msa); |
| 71 | EXPECT_TRUE(info.features.eva); |
| 72 | } |
| 73 | |
| 74 | TEST(CpuinfoMipsTest, AR7161) { |
| 75 | DisableHardwareCapabilities(); |
| 76 | auto& fs = GetEmptyFilesystem(); |
| 77 | fs.CreateFile("/proc/cpuinfo", |
| 78 | R"(system type : Atheros AR7161 rev 2 |
| 79 | machine : NETGEAR WNDR3700/WNDR3800/WNDRMAC |
| 80 | processor : 0 |
| 81 | cpu model : MIPS 24Kc V7.4 |
| 82 | BogoMIPS : 452.19 |
| 83 | wait instruction : yes |
| 84 | microsecond timers : yes |
| 85 | tlb_entries : 16 |
| 86 | extra interrupt vector : yes |
| 87 | hardware watchpoint : yes, count: 4, address/irw mask: [0x0000, 0x0f98, 0x0f78, 0x0df8] |
| 88 | ASEs implemented : mips16 |
| 89 | shadow register sets : 1 |
| 90 | kscratch registers : 0 |
| 91 | core : 0 |
| 92 | VCED exceptions : not available |
| 93 | VCEI exceptions : not available |
| 94 | )"); |
| 95 | const auto info = GetMipsInfo(); |
| 96 | EXPECT_FALSE(info.features.msa); |
| 97 | EXPECT_FALSE(info.features.eva); |
| 98 | } |
| 99 | |
| 100 | TEST(CpuinfoMipsTest, Goldfish) { |
| 101 | DisableHardwareCapabilities(); |
| 102 | auto& fs = GetEmptyFilesystem(); |
| 103 | fs.CreateFile("/proc/cpuinfo", R"(system type : MIPS-Goldfish |
| 104 | Hardware : goldfish |
| 105 | Revison : 1 |
| 106 | processor : 0 |
| 107 | cpu model : MIPS 24Kc V0.0 FPU V0.0 |
| 108 | BogoMIPS : 1042.02 |
| 109 | wait instruction : yes |
| 110 | microsecond timers : yes |
| 111 | tlb_entries : 16 |
| 112 | extra interrupt vector : yes |
| 113 | hardware watchpoint : yes, count: 1, address/irw mask: [0x0ff8] |
| 114 | ASEs implemented : |
| 115 | shadow register sets : 1 |
| 116 | core : 0 |
| 117 | VCED exceptions : not available |
| 118 | VCEI exceptions : not available |
| 119 | )"); |
| 120 | const auto info = GetMipsInfo(); |
| 121 | EXPECT_FALSE(info.features.msa); |
| 122 | EXPECT_FALSE(info.features.eva); |
| 123 | } |
| 124 | |
| 125 | } // namespace |
| 126 | } // namespace cpu_features |