| // Copyright 2020 The Chromium OS Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef DIAGNOSTICS_CROS_HEALTHD_UTILS_CPU_FILE_HELPERS_H_ |
| #define DIAGNOSTICS_CROS_HEALTHD_UTILS_CPU_FILE_HELPERS_H_ |
| |
| #include <string> |
| |
| #include <base/files/file_path.h> |
| |
| namespace diagnostics { |
| |
| // File read from the CPU directory. |
| extern const char kCpuPresentFile[]; |
| // Files read from the C-state directory. |
| extern const char kCStateNameFile[]; |
| extern const char kCStateTimeFile[]; |
| // Files read from the CPU policy directory. |
| extern const char kCpuScalingMaxFreqFile[]; |
| extern const char kCpuScalingCurFreqFile[]; |
| extern const char kCpuinfoMaxFreqFile[]; |
| // File to read Keylocker information. |
| extern const char kCryptoFile[]; |
| |
| // Returns an absolute path to the CPU directory. On a real device, this will be |
| // /sys/devices/system/cpu. |
| base::FilePath GetCpuDirectoryPath(const base::FilePath& root_dir); |
| |
| // Returns an absolute path to the C-state directory for the logical CPU with ID |
| // |logical_id|. On a real device, this will be |
| // /sys/devices/system/cpu/cpu|logical_id|/cpuidle. |
| base::FilePath GetCStateDirectoryPath(const base::FilePath& root_dir, |
| const std::string& logical_id); |
| |
| // Returns an absolute path to the CPU freq directory for the logical CPU with |
| // ID |logical_id|. On a real device, this will be |
| // /sys/devices/system/cpu/cpufreq/policy|logical_id| if the CPU has a governing |
| // policy, or sys/devices/system/cpu/|logical_id|/cpufreq without. |
| base::FilePath GetCpuFreqDirectoryPath(const base::FilePath& root_dir, |
| const std::string& logical_id); |
| |
| // Return an absolute path to crypto file (/proc). |
| base::FilePath GetCryptoDirectoryPath(const base::FilePath& root_dir); |
| |
| } // namespace diagnostics |
| |
| #endif // DIAGNOSTICS_CROS_HEALTHD_UTILS_CPU_FILE_HELPERS_H_ |