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| author | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2022-03-05 14:26:06 +0200 |
|---|---|---|
| committer | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2022-03-07 19:01:11 +0200 |
| commit | 8cf06145263eb23b5411fae03e1ea13e146d605e (patch) | |
| tree | d522c26c60e8a65f8ec71650955e329a1fce2619 /configure.ac | |
| parent | d857e85cb4d4cb9702a59364ce9a4b9d81328cb5 (diff) | |
| download | libgcrypt-8cf06145263eb23b5411fae03e1ea13e146d605e.tar.gz | |
Add detection for HW feature "intel-avx512"
* configure.ac (avx512support, gcry_cv_gcc_inline_asm_avx512)
(ENABLE_AVX512_SUPPORT): New.
* src/g10lib.h (HWF_INTEL_AVX512): New.
* src/hwf-x86.c (detect_x86_gnuc): Add AVX512 detection.
* src/hwfeatures.c (hwflist): Add "intel-avx512".
* doc/gcrypt.texi: Add "intel-avx512" to HW features list.
--
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index e20f9d13..27d72141 100644 --- a/configure.ac +++ b/configure.ac @@ -667,6 +667,14 @@ AC_ARG_ENABLE(avx2-support, avx2support=$enableval,avx2support=yes) AC_MSG_RESULT($avx2support) +# Implementation of the --disable-avx512-support switch. +AC_MSG_CHECKING([whether AVX512 support is requested]) +AC_ARG_ENABLE(avx512-support, + AS_HELP_STRING([--disable-avx512-support], + [Disable support for the Intel AVX512 instructions]), + avx512support=$enableval,avx512support=yes) +AC_MSG_RESULT($avx512support) + # Implementation of the --disable-neon-support switch. AC_MSG_CHECKING([whether NEON support is requested]) AC_ARG_ENABLE(neon-support, @@ -1546,6 +1554,29 @@ fi # +# Check whether GCC inline assembler supports AVX512 instructions +# +AC_CACHE_CHECK([whether GCC inline assembler supports AVX512 instructions], + [gcry_cv_gcc_inline_asm_avx512], + [if test "$mpi_cpu_arch" != "x86" || + test "$try_asm_modules" != "yes" ; then + gcry_cv_gcc_inline_asm_avx512="n/a" + else + gcry_cv_gcc_inline_asm_avx512=no + AC_LINK_IFELSE([AC_LANG_PROGRAM( + [[void a(void) { + __asm__("xgetbv; vpopcntq %%zmm7, %%zmm1%{%%k1%}%{z%};\n\t":::"cc"); + __asm__("vpexpandb %%zmm3, %%zmm1;\n\t":::"cc"); + }]], [ a(); ] )], + [gcry_cv_gcc_inline_asm_avx512=yes]) + fi]) +if test "$gcry_cv_gcc_inline_asm_avx512" = "yes" ; then + AC_DEFINE(HAVE_GCC_INLINE_ASM_AVX512,1, + [Defined if inline assembler supports AVX512 instructions]) +fi + + +# # Check whether GCC inline assembler supports VAES and VPCLMUL instructions # AC_CACHE_CHECK([whether GCC inline assembler supports VAES and VPCLMUL instructions], @@ -2409,6 +2440,10 @@ if test x"$avx2support" = xyes ; then AC_DEFINE(ENABLE_AVX2_SUPPORT,1, [Enable support for Intel AVX2 instructions.]) fi +if test x"$avx512support" = xyes ; then + AC_DEFINE(ENABLE_AVX512_SUPPORT,1, + [Enable support for Intel AVX512 instructions.]) +fi if test x"$neonsupport" = xyes ; then AC_DEFINE(ENABLE_NEON_SUPPORT,1, [Enable support for ARM NEON instructions.]) @@ -3266,6 +3301,7 @@ GCRY_MSG_SHOW([Try using Intel SSE4.1: ],[$sse41support]) GCRY_MSG_SHOW([Try using DRNG (RDRAND): ],[$drngsupport]) GCRY_MSG_SHOW([Try using Intel AVX: ],[$avxsupport]) GCRY_MSG_SHOW([Try using Intel AVX2: ],[$avx2support]) +GCRY_MSG_SHOW([Try using Intel AVX512: ],[$avx512support]) GCRY_MSG_SHOW([Try using ARM NEON: ],[$neonsupport]) GCRY_MSG_SHOW([Try using ARMv8 crypto: ],[$armcryptosupport]) GCRY_MSG_SHOW([Try using PPC crypto: ],[$ppccryptosupport]) |