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path: root/arch/x86/crypto/sha256-ssse3-asm.S
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2013-05-28crypto: sha256_ssse3 - fix stack corruption with SSSE3 and AVX implementationsJussi Kivilinna
The _XFER stack element size was set too small, 8 bytes, when it needs to be 16 bytes. As _XFER is the last stack element used by these implementations, the 16 byte stores with 'movdqa' corrupt the stack where the value of register %r12 is temporarily stored. As these implementations align the stack pointer to 16 bytes, this corruption did not happen every time. Patch corrects this issue. Reported-by: Julian Wollrath <jwollrath@web.de> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Tested-by: Julian Wollrath <jwollrath@web.de> Acked-by: Tim Chen <tim.c.chen@linux.intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-03crypto: sha256 - Optimized sha256 x86_64 assembly routine using Supplemental ↵Tim Chen
SSE3 instructions. Provides SHA256 x86_64 assembly routine optimized with SSSE3 instructions. Speedup of 40% or more has been measured over the generic implementation. Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>