1 /* 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 // You can download Android source at 12 // http://source.android.com/source/downloading.html 13 // Original files are in ndk/sources/android/cpufeatures 14 // Revision is Change-Id: I9a0629efba36a6023f05e5f092e7addcc1b7d2a9 15 16 #ifndef CPU_FEATURES_H 17 #define CPU_FEATURES_H 18 19 #include <sys/cdefs.h> 20 #include <stdint.h> 21 22 __BEGIN_DECLS 23 24 typedef enum { 25 ANDROID_CPU_FAMILY_UNKNOWN = 0, 26 ANDROID_CPU_FAMILY_ARM, 27 ANDROID_CPU_FAMILY_X86, 28 29 ANDROID_CPU_FAMILY_MAX /* do not remove */ 30 31 } AndroidCpuFamily; 32 33 /* Return family of the device's CPU */ 34 extern AndroidCpuFamily android_getCpuFamily(void); 35 36 enum { 37 ANDROID_CPU_ARM_FEATURE_ARMv7 = (1 << 0), 38 ANDROID_CPU_ARM_FEATURE_VFPv3 = (1 << 1), 39 ANDROID_CPU_ARM_FEATURE_NEON = (1 << 2), 40 ANDROID_CPU_ARM_FEATURE_LDREX_STREX = (1 << 3), 41 }; 42 43 enum { 44 ANDROID_CPU_X86_FEATURE_SSSE3 = (1 << 0), 45 ANDROID_CPU_X86_FEATURE_POPCNT = (1 << 1), 46 ANDROID_CPU_X86_FEATURE_MOVBE = (1 << 2), 47 }; 48 49 extern uint64_t android_getCpuFeatures(void); 50 51 /* Return the number of CPU cores detected on this device. */ 52 extern int android_getCpuCount(void); 53 54 __END_DECLS 55 56 #endif /* CPU_FEATURES_H */ 57