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 24typedef 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 */ 34extern AndroidCpuFamily android_getCpuFamily(void); 35 36enum { 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 43enum { 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 49extern uint64_t android_getCpuFeatures(void); 50 51/* Return the number of CPU cores detected on this device. */ 52extern int android_getCpuCount(void); 53 54__END_DECLS 55 56#endif /* CPU_FEATURES_H */ 57