[FFmpeg-devel] [PATCH 1/7] Add AESNI CPU flag
Rodger Combs
rodger.combs at gmail.com
Mon Oct 12 05:20:02 CEST 2015
---
configure | 4 ++++
libavutil/cpu.c | 3 +++
libavutil/cpu.h | 1 +
libavutil/x86/cpu.c | 2 ++
libavutil/x86/cpu.h | 3 +++
libavutil/x86/x86inc.asm | 1 +
tests/checkasm/checkasm.c | 1 +
7 files changed, 15 insertions(+)
diff --git a/configure b/configure
index 7e55e92..79d4449 100755
--- a/configure
+++ b/configure
@@ -367,6 +367,7 @@ Optimization options (experts only):
--disable-fma3 disable FMA3 optimizations
--disable-fma4 disable FMA4 optimizations
--disable-avx2 disable AVX2 optimizations
+ --disable-aesni disable AESNI optimizations
--disable-armv5te disable armv5te optimizations
--disable-armv6 disable armv6 optimizations
--disable-armv6t2 disable armv6t2 optimizations
@@ -1633,6 +1634,7 @@ ARCH_EXT_LIST_LOONGSON="
"
ARCH_EXT_LIST_X86_SIMD="
+ aesni
amd3dnow
amd3dnowext
avx
@@ -2130,6 +2132,7 @@ xop_deps="avx"
fma3_deps="avx"
fma4_deps="avx"
avx2_deps="avx"
+aesni_deps="sse2"
mmx_external_deps="yasm"
mmx_inline_deps="inline_asm"
@@ -5986,6 +5989,7 @@ if enabled x86; then
echo "XOP enabled ${xop-no}"
echo "FMA3 enabled ${fma3-no}"
echo "FMA4 enabled ${fma4-no}"
+ echo "AESNI enabled ${aesni-no}"
echo "i686 features enabled ${i686-no}"
echo "CMOV is fast ${fast_cmov-no}"
echo "EBX available ${ebx_available-no}"
diff --git a/libavutil/cpu.c b/libavutil/cpu.c
index 780368d..c1f06c6 100644
--- a/libavutil/cpu.c
+++ b/libavutil/cpu.c
@@ -145,6 +145,7 @@ int av_parse_cpu_flags(const char *s)
{ "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" },
+ { "aesni", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_AESNI }, .unit = "flags" },
#elif ARCH_ARM
{ "armv5te", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV5TE }, .unit = "flags" },
{ "armv6", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV6 }, .unit = "flags" },
@@ -205,6 +206,7 @@ int av_parse_cpu_caps(unsigned *flags, const char *s)
{ "3dnow" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_3DNOW }, .unit = "flags" },
{ "3dnowext", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_3DNOWEXT }, .unit = "flags" },
{ "cmov", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_CMOV }, .unit = "flags" },
+ { "aesni", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_AESNI }, .unit = "flags" },
#define CPU_FLAG_P2 AV_CPU_FLAG_CMOV | AV_CPU_FLAG_MMX
#define CPU_FLAG_P3 CPU_FLAG_P2 | AV_CPU_FLAG_MMX2 | AV_CPU_FLAG_SSE
@@ -334,6 +336,7 @@ static const struct {
{ AV_CPU_FLAG_AVX2, "avx2" },
{ AV_CPU_FLAG_BMI1, "bmi1" },
{ AV_CPU_FLAG_BMI2, "bmi2" },
+ { AV_CPU_FLAG_AESNI, "aesni" },
#endif
{ 0 }
};
diff --git a/libavutil/cpu.h b/libavutil/cpu.h
index 9403eca..038afd0 100644
--- a/libavutil/cpu.h
+++ b/libavutil/cpu.h
@@ -51,6 +51,7 @@
#define AV_CPU_FLAG_FMA3 0x10000 ///< Haswell FMA3 functions
#define AV_CPU_FLAG_BMI1 0x20000 ///< Bit Manipulation Instruction Set 1
#define AV_CPU_FLAG_BMI2 0x40000 ///< Bit Manipulation Instruction Set 2
+#define AV_CPU_FLAG_AESNI 0x80000 ///< Advanced Encryption Standard
#define AV_CPU_FLAG_ALTIVEC 0x0001 ///< standard
#define AV_CPU_FLAG_VSX 0x0002 ///< ISA 2.06
diff --git a/libavutil/x86/cpu.c b/libavutil/x86/cpu.c
index 7a5d4e6..f57d72d 100644
--- a/libavutil/x86/cpu.c
+++ b/libavutil/x86/cpu.c
@@ -126,6 +126,8 @@ int ff_get_cpu_flags_x86(void)
rval |= AV_CPU_FLAG_SSE4;
if (ecx & 0x00100000 )
rval |= AV_CPU_FLAG_SSE42;
+ if (ecx & 0x01000000 )
+ rval |= AV_CPU_FLAG_AESNI;
#if HAVE_AVX
/* Check OXSAVE and AVX bits */
if ((ecx & 0x18000000) == 0x18000000) {
diff --git a/libavutil/x86/cpu.h b/libavutil/x86/cpu.h
index 1cea419..dc102c6 100644
--- a/libavutil/x86/cpu.h
+++ b/libavutil/x86/cpu.h
@@ -47,6 +47,7 @@
#define X86_FMA3(flags) CPUEXT(flags, FMA3)
#define X86_FMA4(flags) CPUEXT(flags, FMA4)
#define X86_AVX2(flags) CPUEXT(flags, AVX2)
+#define X86_AESNI(flags) CPUEXT(flags, AESNI)
#define EXTERNAL_AMD3DNOW(flags) CPUEXT_SUFFIX(flags, _EXTERNAL, AMD3DNOW)
#define EXTERNAL_AMD3DNOWEXT(flags) CPUEXT_SUFFIX(flags, _EXTERNAL, AMD3DNOWEXT)
@@ -69,6 +70,7 @@
#define EXTERNAL_FMA3(flags) CPUEXT_SUFFIX(flags, _EXTERNAL, FMA3)
#define EXTERNAL_FMA4(flags) CPUEXT_SUFFIX(flags, _EXTERNAL, FMA4)
#define EXTERNAL_AVX2(flags) CPUEXT_SUFFIX(flags, _EXTERNAL, AVX2)
+#define EXTERNAL_AESNI(flags) CPUEXT_SUFFIX(flags, _EXTERNAL, AESNI)
#define INLINE_AMD3DNOW(flags) CPUEXT_SUFFIX(flags, _INLINE, AMD3DNOW)
#define INLINE_AMD3DNOWEXT(flags) CPUEXT_SUFFIX(flags, _INLINE, AMD3DNOWEXT)
@@ -91,6 +93,7 @@
#define INLINE_FMA3(flags) CPUEXT_SUFFIX(flags, _INLINE, FMA3)
#define INLINE_FMA4(flags) CPUEXT_SUFFIX(flags, _INLINE, FMA4)
#define INLINE_AVX2(flags) CPUEXT_SUFFIX(flags, _INLINE, AVX2)
+#define INLINE_AESNI(flags) CPUEXT_SUFFIX(flags, _INLINE, AESNI)
void ff_cpu_cpuid(int index, int *eax, int *ebx, int *ecx, int *edx);
void ff_cpu_xgetbv(int op, int *eax, int *edx);
diff --git a/libavutil/x86/x86inc.asm b/libavutil/x86/x86inc.asm
index afcd6b8..5082a2b 100644
--- a/libavutil/x86/x86inc.asm
+++ b/libavutil/x86/x86inc.asm
@@ -772,6 +772,7 @@ BRANCH_INSTR jz, je, jnz, jne, jl, jle, jnl, jnle, jg, jge, jng, jnge, ja, jae,
%assign cpuflags_atom (1<<21)
%assign cpuflags_bmi1 (1<<22)|cpuflags_lzcnt
%assign cpuflags_bmi2 (1<<23)|cpuflags_bmi1
+%assign cpuflags_aesni (1<<24)|cpuflags_sse2
; Returns a boolean value expressing whether or not the specified cpuflag is enabled.
%define cpuflag(x) (((((cpuflags & (cpuflags_ %+ x)) ^ (cpuflags_ %+ x)) - 1) >> 31) & 1)
diff --git a/tests/checkasm/checkasm.c b/tests/checkasm/checkasm.c
index bba2dbc..2e3d393 100644
--- a/tests/checkasm/checkasm.c
+++ b/tests/checkasm/checkasm.c
@@ -117,6 +117,7 @@ static const struct {
{ "SSSE3", "ssse3", AV_CPU_FLAG_SSSE3|AV_CPU_FLAG_ATOM },
{ "SSE4.1", "sse4", AV_CPU_FLAG_SSE4 },
{ "SSE4.2", "sse42", AV_CPU_FLAG_SSE42 },
+ { "AESNI", "aesni", AV_CPU_FLAG_AESNI },
{ "AVX", "avx", AV_CPU_FLAG_AVX },
{ "XOP", "xop", AV_CPU_FLAG_XOP },
{ "FMA3", "fma3", AV_CPU_FLAG_FMA3 },
--
2.6.0
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