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| 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 ANDROID_CPU_FAMILY_MIPS, |
| 41 |
| 42 ANDROID_CPU_FAMILY_MAX /* do not remove */ |
| 43 |
| 44 } AndroidCpuFamily; |
| 45 |
| 46 /* Return family of the device's CPU */ |
| 47 extern AndroidCpuFamily android_getCpuFamily(void); |
| 48 |
| 49 enum { |
| 50 ANDROID_CPU_ARM_FEATURE_ARMv7 = (1 << 0), |
| 51 ANDROID_CPU_ARM_FEATURE_VFPv3 = (1 << 1), |
| 52 ANDROID_CPU_ARM_FEATURE_NEON = (1 << 2), |
| 53 ANDROID_CPU_ARM_FEATURE_LDREX_STREX = (1 << 3), |
| 54 }; |
| 55 |
| 56 enum { |
| 57 ANDROID_CPU_X86_FEATURE_SSSE3 = (1 << 0), |
| 58 ANDROID_CPU_X86_FEATURE_POPCNT = (1 << 1), |
| 59 ANDROID_CPU_X86_FEATURE_MOVBE = (1 << 2), |
| 60 }; |
| 61 |
| 62 extern uint64_t android_getCpuFeatures(void); |
| 63 |
| 64 /* Return the number of CPU cores detected on this device. */ |
| 65 extern int android_getCpuCount(void); |
| 66 |
| 67 __END_DECLS |
| 68 |
| 69 #endif /* CPU_FEATURES_H */ |
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