1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 #ifndef CPU_FEATURES_H 29 #define CPU_FEATURES_H 30 31 #include <sys/cdefs.h> 32 #include <stdint.h> 33 34 __BEGIN_DECLS 35 36 typedef enum { 37 ANDROID_CPU_FAMILY_UNKNOWN = 0, 38 ANDROID_CPU_FAMILY_ARM, 39 ANDROID_CPU_FAMILY_X86, 40 41 ANDROID_CPU_FAMILY_MAX /* do not remove */ 42 43 } AndroidCpuFamily; 44 45 /* Return family of the device's CPU */ 46 extern AndroidCpuFamily android_getCpuFamily(void); 47 48 enum { 49 ANDROID_CPU_ARM_FEATURE_ARMv7 = (1 << 0), 50 ANDROID_CPU_ARM_FEATURE_VFPv3 = (1 << 1), 51 ANDROID_CPU_ARM_FEATURE_NEON = (1 << 2), 52 ANDROID_CPU_ARM_FEATURE_LDREX_STREX = (1 << 3), 53 }; 54 55 extern uint64_t android_getCpuFeatures(void); 56 57 /* Return the number of CPU cores detected on this device. */ 58 extern int android_getCpuCount(void); 59 60 __END_DECLS 61 62 #endif /* CPU_FEATURES_H */ 63
