Hao Xiang <hao.xi...@linux.dev> writes:
> Enable instruction set enqcmd in build.
>
> Signed-off-by: Hao Xiang <hao.xi...@linux.dev>
> ---
> meson.build | 14 ++++++++++++++
> meson_options.txt | 2 ++
> scripts/meson-buildoptions.sh | 3 +++
> 3 files changed, 19 insertions(+)
>
> diff --git a/meson.build b/meson.build
> index 95cee7046e..9e008ddc34 100644
> --- a/meson.build
> +++ b/meson.build
> @@ -2824,6 +2824,20 @@ config_host_data.set('CONFIG_AVX512BW_OPT',
> get_option('avx512bw') \
> int main(int argc, char *argv[]) { return bar(argv[0]); }
> '''), error_message: 'AVX512BW not available').allowed())
>
> +config_host_data.set('CONFIG_DSA_OPT', get_option('enqcmd') \
> + .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot
> enable ENQCMD') \
> + .require(cc.links('''
> + #include <stdint.h>
> + #include <cpuid.h>
> + #include <immintrin.h>
> + static int __attribute__((target("enqcmd"))) bar(void *a) {
> + uint64_t dst[8] = { 0 };
> + uint64_t src[8] = { 0 };
> + return _enqcmd(dst, src);
> + }
> + int main(int argc, char *argv[]) { return bar(argv[argc - 1]); }
> + '''), error_message: 'ENQCMD not available').allowed())
> +
> # For both AArch64 and AArch32, detect if builtins are available.
> config_host_data.set('CONFIG_ARM_AES_BUILTIN', cc.compiles('''
> #include <arm_neon.h>
> diff --git a/meson_options.txt b/meson_options.txt
> index b5c0bad9e7..63c1bf815b 100644
> --- a/meson_options.txt
> +++ b/meson_options.txt
> @@ -121,6 +121,8 @@ option('avx512f', type: 'feature', value: 'disabled',
> description: 'AVX512F optimizations')
> option('avx512bw', type: 'feature', value: 'auto',
> description: 'AVX512BW optimizations')
> +option('enqcmd', type: 'feature', value: 'disabled',
> + description: 'MENQCMD optimizations')
s/MENQCMD/ENQCMD/
> option('keyring', type: 'feature', value: 'auto',
> description: 'Linux keyring support')
> option('libkeyutils', type: 'feature', value: 'auto',
> diff --git a/scripts/meson-buildoptions.sh b/scripts/meson-buildoptions.sh
> index 5ace33f167..2cdfc84455 100644
> --- a/scripts/meson-buildoptions.sh
> +++ b/scripts/meson-buildoptions.sh
> @@ -93,6 +93,7 @@ meson_options_help() {
> printf "%s\n" ' avx2 AVX2 optimizations'
> printf "%s\n" ' avx512bw AVX512BW optimizations'
> printf "%s\n" ' avx512f AVX512F optimizations'
> + printf "%s\n" ' enqcmd ENQCMD optimizations'
> printf "%s\n" ' blkio libblkio block device driver'
> printf "%s\n" ' bochs bochs image format support'
> printf "%s\n" ' bpf eBPF support'
> @@ -239,6 +240,8 @@ _meson_option_parse() {
> --disable-avx512bw) printf "%s" -Davx512bw=disabled ;;
> --enable-avx512f) printf "%s" -Davx512f=enabled ;;
> --disable-avx512f) printf "%s" -Davx512f=disabled ;;
> + --enable-enqcmd) printf "%s" -Denqcmd=enabled ;;
> + --disable-enqcmd) printf "%s" -Denqcmd=disabled ;;
> --enable-gcov) printf "%s" -Db_coverage=true ;;
> --disable-gcov) printf "%s" -Db_coverage=false ;;
> --enable-lto) printf "%s" -Db_lto=true ;;
