--- /dev/null
+// 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_mips.h"
+#include "filesystem_for_testing.h"
+#include "hwcaps_for_testing.h"
+#include "internal/stack_line_reader.h"
+#include "internal/string_view.h"
+
+#include "gtest/gtest.h"
+
+namespace cpu_features {
+
+namespace {
+
+void DisableHardwareCapabilities() { SetHardwareCapabilities(0, 0); }
+
+TEST(CpuinfoMipsTest, FromHardwareCapBoth) {
+ SetHardwareCapabilities(MIPS_HWCAP_EVA | MIPS_HWCAP_MSA, 0);
+ GetEmptyFilesystem(); // disabling /proc/cpuinfo
+ const auto info = GetMipsInfo();
+ EXPECT_TRUE(info.features.msa);
+ EXPECT_TRUE(info.features.eva);
+}
+
+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