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| author |   Samuel Neves <sneves@dei.uc.pt> | 2017-12-01 21:21:39 +0000 |
|---|---|---|
| committer |   Jason A. Donenfeld <Jason@zx2c4.com> | 2017-12-03 15:16:10 +0100 |
| commit | 3004f6b28556b2ab37cfd60ac12f6d495169705a (patch) | |
| tree | 882033dfee8d8717f182d947e61d506428058437 /src/crypto/chacha20poly1305.c | |
| parent | tools: no need to put this on the stack (diff) | |
| download | wireguard-monolithic-historical-3004f6b28556b2ab37cfd60ac12f6d495169705a.tar.xz wireguard-monolithic-historical-3004f6b28556b2ab37cfd60ac12f6d495169705a.zip | |
poly1305: update x86-64 kernel to AVX512F only
Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
Diffstat (limited to 'src/crypto/chacha20poly1305.c')
| -rw-r--r-- | src/crypto/chacha20poly1305.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/src/crypto/chacha20poly1305.c b/src/crypto/chacha20poly1305.c index e795d2f..2fa94c7 100644 --- a/src/crypto/chacha20poly1305.c +++ b/src/crypto/chacha20poly1305.c @@ -74,12 +74,7 @@ void __init chacha20poly1305_fpu_init(void) chacha20poly1305_use_avx = boot_cpu_has(X86_FEATURE_AVX) && cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL); chacha20poly1305_use_avx2 = boot_cpu_has(X86_FEATURE_AVX) && boot_cpu_has(X86_FEATURE_AVX2) && cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL); #ifndef COMPAT_CANNOT_USE_AVX512 - /* ChaCha20 only needs AVX512F, but Poly1305 needs F+VL+BW. Since - * there's no hardware that actually supports one and not the other, - * we keep this as one flag. But should bizarre hardware ever be - * produced, we'll want to separate these out. - */ - chacha20poly1305_use_avx512 = boot_cpu_has(X86_FEATURE_AVX) && boot_cpu_has(X86_FEATURE_AVX2) && boot_cpu_has(X86_FEATURE_AVX512F) && boot_cpu_has(X86_FEATURE_AVX512VL) && boot_cpu_has(X86_FEATURE_AVX512BW) && cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM | XFEATURE_MASK_ZMM_Hi256, NULL); + chacha20poly1305_use_avx512 = boot_cpu_has(X86_FEATURE_AVX) && boot_cpu_has(X86_FEATURE_AVX2) && boot_cpu_has(X86_FEATURE_AVX512F) && cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM | XFEATURE_MASK_ZMM_Hi256, NULL); #endif } #elif defined(CONFIG_ARM) || defined(CONFIG_ARM64) |