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crypto: ghash-intel - Hard-code pshufb 

Old gases don't have a clue what pshufb stands for so we have
to hard-code it for now.

Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2009-11-01 12:49:44 -05:00
parent 3e02e5cb47
commit 2d06ef7f42
1 changed files with 12 additions and 6 deletions
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18
arch/x86/crypto/ghash-clmulni-intel_asm.S
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@ -100,9 +100,11 @@ ENTRY(clmul_ghash_mul)
movups (%rdi), DATA
movups (%rsi), SHASH
movaps .Lbswap_mask, BSWAP
pshufb BSWAP, DATA
# pshufb BSWAP, DATA
.byte 0x66, 0x0f, 0x38, 0x00, 0xc5
call __clmul_gf128mul_ble
pshufb BSWAP, DATA
# pshufb BSWAP, DATA
.byte 0x66, 0x0f, 0x38, 0x00, 0xc5
movups DATA, (%rdi)
ret
@ -116,18 +118,21 @@ ENTRY(clmul_ghash_update)
movaps .Lbswap_mask, BSWAP
movups (%rdi), DATA
movups (%rcx), SHASH
pshufb BSWAP, DATA
# pshufb BSWAP, DATA
.byte 0x66, 0x0f, 0x38, 0x00, 0xc5
.align 4
.Lupdate_loop:
movups (%rsi), IN1
pshufb BSWAP, IN1
# pshufb BSWAP, IN1
.byte 0x66, 0x0f, 0x38, 0x00, 0xf5
pxor IN1, DATA
call __clmul_gf128mul_ble
sub $16, %rdx
add $16, %rsi
cmp $16, %rdx
jge .Lupdate_loop
pshufb BSWAP, DATA
# pshufb BSWAP, DATA
.byte 0x66, 0x0f, 0x38, 0x00, 0xc5
movups DATA, (%rdi)
.Lupdate_just_ret:
ret
@ -140,7 +145,8 @@ ENTRY(clmul_ghash_update)
ENTRY(clmul_ghash_setkey)
movaps .Lbswap_mask, BSWAP
movups (%rsi), %xmm0
pshufb BSWAP, %xmm0
# pshufb BSWAP, %xmm0
.byte 0x66, 0x0f, 0x38, 0x00, 0xc5
movaps %xmm0, %xmm1
psllq $1, %xmm0
psrlq $63, %xmm1