diff options
| author | Kieran Kunhya <kierank@ob-encoder.com> | 2013-10-25 07:53:56 -0500 |
|---|---|---|
| committer | Derek Buitenhuis <derek.buitenhuis@gmail.com> | 2013-10-25 19:36:55 +0100 |
| commit | 4d6ee0725553a43ba88d6f8327ebcf8f1c5ae8d4 (patch) | |
| tree | d816bbf9d9dee4bc7e5c8f8b5074b0136d4e5c17 /libavutil | |
| parent | 7177df90a043bd59e172843fc7cb9e767080ea12 (diff) | |
| download | ffmpeg-4d6ee0725553a43ba88d6f8327ebcf8f1c5ae8d4.tar.gz | |
libavutil: x86: Add AVX2 capable CPU detection.
Patch based on x264's AVX2 detection
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Diffstat (limited to 'libavutil')
| -rw-r--r-- | libavutil/cpu.c | 3 | ||||
| -rw-r--r-- | libavutil/cpu.h | 1 | ||||
| -rw-r--r-- | libavutil/x86/cpu.c | 8 | ||||
| -rw-r--r-- | libavutil/x86/cpu.h | 3 |
4 files changed, 15 insertions, 0 deletions
diff --git a/libavutil/cpu.c b/libavutil/cpu.c index 8edebbceed..c96dfa9e6b 100644 --- a/libavutil/cpu.c +++ b/libavutil/cpu.c @@ -81,6 +81,7 @@ int av_parse_cpu_flags(const char *s) #define CPUFLAG_AVX (AV_CPU_FLAG_AVX | CPUFLAG_SSE42) #define CPUFLAG_XOP (AV_CPU_FLAG_XOP | CPUFLAG_AVX) #define CPUFLAG_FMA4 (AV_CPU_FLAG_FMA4 | CPUFLAG_AVX) +#define CPUFLAG_AVX2 (AV_CPU_FLAG_AVX2 | CPUFLAG_AVX) static const AVOption cpuflags_opts[] = { { "flags" , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" }, #if ARCH_PPC @@ -100,6 +101,7 @@ int av_parse_cpu_flags(const char *s) { "avx" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_AVX }, .unit = "flags" }, { "xop" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_XOP }, .unit = "flags" }, { "fma4" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_FMA4 }, .unit = "flags" }, + { "avx2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_AVX2 }, .unit = "flags" }, { "3dnow" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_3DNOW }, .unit = "flags" }, { "3dnowext", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_3DNOWEXT }, .unit = "flags" }, { "cmov", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_CMOV }, .unit = "flags" }, @@ -193,6 +195,7 @@ static const struct { { AV_CPU_FLAG_3DNOW, "3dnow" }, { AV_CPU_FLAG_3DNOWEXT, "3dnowext" }, { AV_CPU_FLAG_CMOV, "cmov" }, + { AV_CPU_FLAG_AVX2, "avx2" }, #endif { 0 } }; diff --git a/libavutil/cpu.h b/libavutil/cpu.h index 3103131211..29036e3941 100644 --- a/libavutil/cpu.h +++ b/libavutil/cpu.h @@ -48,6 +48,7 @@ #define AV_CPU_FLAG_XOP 0x0400 ///< Bulldozer XOP functions #define AV_CPU_FLAG_FMA4 0x0800 ///< Bulldozer FMA4 functions #define AV_CPU_FLAG_CMOV 0x1000 ///< i686 cmov +#define AV_CPU_FLAG_AVX2 0x8000 ///< AVX2 functions: requires OS support even if YMM registers aren't used #define AV_CPU_FLAG_ALTIVEC 0x0001 ///< standard diff --git a/libavutil/x86/cpu.c b/libavutil/x86/cpu.c index 3e946b8dc2..0e06d5deb2 100644 --- a/libavutil/x86/cpu.c +++ b/libavutil/x86/cpu.c @@ -134,6 +134,14 @@ int ff_get_cpu_flags_x86(void) if ((eax & 0x6) == 0x6) rval |= AV_CPU_FLAG_AVX; } +#if HAVE_AVX2 + if (max_std_level >= 7) { + cpuid(7, eax, ebx, ecx, edx); + if (ebx&0x00000020) + rval |= AV_CPU_FLAG_AVX2; + /* TODO: BMI1/2 */ + } +#endif /* HAVE_AVX2 */ #endif /* HAVE_AVX */ #endif /* HAVE_SSE */ } diff --git a/libavutil/x86/cpu.h b/libavutil/x86/cpu.h index e5153bb8b1..5303c5ae02 100644 --- a/libavutil/x86/cpu.h +++ b/libavutil/x86/cpu.h @@ -38,6 +38,7 @@ #define X86_SSE42(flags) CPUEXT(flags, SSE42) #define X86_AVX(flags) CPUEXT(flags, AVX) #define X86_FMA4(flags) CPUEXT(flags, FMA4) +#define X86_AVX2(flags) CPUEXT(flags, AVX2) #define EXTERNAL_AMD3DNOW(flags) CPUEXT_SUFFIX(flags, _EXTERNAL, AMD3DNOW) #define EXTERNAL_AMD3DNOWEXT(flags) CPUEXT_SUFFIX(flags, _EXTERNAL, AMD3DNOWEXT) @@ -51,6 +52,7 @@ #define EXTERNAL_SSE42(flags) CPUEXT_SUFFIX(flags, _EXTERNAL, SSE42) #define EXTERNAL_AVX(flags) CPUEXT_SUFFIX(flags, _EXTERNAL, AVX) #define EXTERNAL_FMA4(flags) CPUEXT_SUFFIX(flags, _EXTERNAL, FMA4) +#define EXTERNAL_AVX2(flags) CPUEXT_SUFFIX(flags, _EXTERNAL, AVX2) #define INLINE_AMD3DNOW(flags) CPUEXT_SUFFIX(flags, _INLINE, AMD3DNOW) #define INLINE_AMD3DNOWEXT(flags) CPUEXT_SUFFIX(flags, _INLINE, AMD3DNOWEXT) @@ -64,6 +66,7 @@ #define INLINE_SSE42(flags) CPUEXT_SUFFIX(flags, _INLINE, SSE42) #define INLINE_AVX(flags) CPUEXT_SUFFIX(flags, _INLINE, AVX) #define INLINE_FMA4(flags) CPUEXT_SUFFIX(flags, _INLINE, FMA4) +#define INLINE_AVX2(flags) CPUEXT_SUFFIX(flags, _INLINE, AVX2) void ff_cpu_cpuid(int index, int *eax, int *ebx, int *ecx, int *edx); void ff_cpu_xgetbv(int op, int *eax, int *edx); |