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cpu.h
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #ifndef AVUTIL_ARM_CPU_H
20 #define AVUTIL_ARM_CPU_H
21 
22 #include "config.h"
23 #include "libavutil/cpu.h"
24 #include "libavutil/cpu_internal.h"
25 
26 #define have_armv5te(flags) CPUEXT(flags, ARMV5TE)
27 #define have_armv6(flags) CPUEXT(flags, ARMV6)
28 #define have_armv6t2(flags) CPUEXT(flags, ARMV6T2)
29 #define have_vfp(flags) CPUEXT(flags, VFP)
30 #define have_vfpv3(flags) CPUEXT(flags, VFPV3)
31 #define have_neon(flags) CPUEXT(flags, NEON)
32 
33 /* Some functions use the 'setend' instruction which is deprecated on ARMv8
34  * and serializing on some ARMv7 cores. This macro ensures such functions
35  * are only enabled on ARMv6. */
36 #define have_setend(flags) \
37  (have_armv6(flags) && !(have_vfpv3(flags) || have_neon(flags)))
38 
39 #endif /* AVUTIL_ARM_CPU_H */