Guillaume Chatelet | 9a8f04b | 2020-10-12 11:50:35 +0200 | [diff] [blame] | 1 | // Copyright 2020 Google LLC |
| 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 | // The following preprocessor constants must be defined before including this |
| 16 | // file: |
| 17 | // - DEFINE_TABLE_FEATURE_TYPE, the underlying type (e.g. X86Features) |
Guillaume Chatelet | cdab59a | 2020-10-13 13:05:04 +0200 | [diff] [blame] | 18 | // - DEFINE_TABLE_FEATURES, the list of FEATURE macros to be inserted. |
Guillaume Chatelet | 9a8f04b | 2020-10-12 11:50:35 +0200 | [diff] [blame] | 19 | |
| 20 | // This file is to be included once per `cpuinfo_XXX.c` in order to construct |
| 21 | // feature getters and setters functions as well as several enum indexed tables |
| 22 | // from the db file. |
| 23 | // - `kGetters` a table of getters function pointers from feature enum to |
| 24 | // retrieve a feature, |
| 25 | // - `kSetters` a table of setters function pointers from feature enum to set a |
| 26 | // feature, |
| 27 | // - `kCpuInfoFlags` a table of strings from feature enum to /proc/cpuinfo |
| 28 | // flags, |
| 29 | // - `kHardwareCapabilities` a table of HardwareCapabilities structs indexed by |
| 30 | // their feature enum. |
| 31 | |
| 32 | #ifndef SRC_DEFINE_TABLES_H_ |
| 33 | #define SRC_DEFINE_TABLES_H_ |
| 34 | |
| 35 | #define FEATURE(ENUM, NAME, CPUINFO_FLAG, HWCAP, HWCAP2) [ENUM] = CPUINFO_FLAG, |
Guillaume Chatelet | cdab59a | 2020-10-13 13:05:04 +0200 | [diff] [blame] | 36 | static const char* kCpuInfoFlags[] = {DEFINE_TABLE_FEATURES}; |
Guillaume Chatelet | 9a8f04b | 2020-10-12 11:50:35 +0200 | [diff] [blame] | 37 | #undef FEATURE |
| 38 | |
| 39 | #ifndef DEFINE_TABLE_DONT_GENERATE_HWCAPS |
| 40 | #define FEATURE(ENUM, NAME, CPUINFO_FLAG, HWCAP, HWCAP2) \ |
| 41 | [ENUM] = (HardwareCapabilities){HWCAP, HWCAP2}, |
| 42 | static const HardwareCapabilities kHardwareCapabilities[] = { |
Guillaume Chatelet | cdab59a | 2020-10-13 13:05:04 +0200 | [diff] [blame] | 43 | DEFINE_TABLE_FEATURES}; |
Guillaume Chatelet | 9a8f04b | 2020-10-12 11:50:35 +0200 | [diff] [blame] | 44 | #undef FEATURE |
| 45 | #endif // DEFINE_TABLE_DONT_GENERATE_HWCAPS |
| 46 | |
| 47 | #define FEATURE(ENUM, NAME, CPUINFO_FLAG, HWCAP, HWCAP2) \ |
| 48 | static void set_##ENUM(DEFINE_TABLE_FEATURE_TYPE* features, bool value) { \ |
| 49 | features->NAME = value; \ |
| 50 | } \ |
| 51 | static int get_##ENUM(const DEFINE_TABLE_FEATURE_TYPE* features) { \ |
| 52 | return features->NAME; \ |
| 53 | } |
Guillaume Chatelet | cdab59a | 2020-10-13 13:05:04 +0200 | [diff] [blame] | 54 | DEFINE_TABLE_FEATURES |
Guillaume Chatelet | 9a8f04b | 2020-10-12 11:50:35 +0200 | [diff] [blame] | 55 | #undef FEATURE |
| 56 | |
| 57 | #define FEATURE(ENUM, NAME, CPUINFO_FLAG, HWCAP, HWCAP2) [ENUM] = set_##ENUM, |
Guillaume Chatelet | cdab59a | 2020-10-13 13:05:04 +0200 | [diff] [blame] | 58 | static void (*const kSetters[])(DEFINE_TABLE_FEATURE_TYPE*, |
| 59 | bool) = {DEFINE_TABLE_FEATURES}; |
Guillaume Chatelet | 9a8f04b | 2020-10-12 11:50:35 +0200 | [diff] [blame] | 60 | #undef FEATURE |
| 61 | |
| 62 | #define FEATURE(ENUM, NAME, CPUINFO_FLAG, HWCAP, HWCAP2) [ENUM] = get_##ENUM, |
| 63 | static int (*const kGetters[])(const DEFINE_TABLE_FEATURE_TYPE*) = { |
Guillaume Chatelet | cdab59a | 2020-10-13 13:05:04 +0200 | [diff] [blame] | 64 | DEFINE_TABLE_FEATURES}; |
Guillaume Chatelet | 9a8f04b | 2020-10-12 11:50:35 +0200 | [diff] [blame] | 65 | #undef FEATURE |
| 66 | |
| 67 | #endif // SRC_DEFINE_TABLES_H_ |