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crypto: arm64/ghash-ce - fix for big endian

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The GHASH key and digest are both pairs of 64-bit quantities, but the
GHASH code does not always refer to them as such, causing failures when
built for big endian. So replace the 16x1 loads and stores with 2x8 ones.

Fixes: b913a6404c ("arm64/crypto: improve performance of GHASH algorithm")
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Ard Biesheuvel 2016-10-11 19:15:14 +01:00 committed by Herbert Xu
parent 1803b9a52c
commit 9c433ad508
1 changed files with 3 additions and 3 deletions
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6
arch/arm64/crypto/ghash-ce-core.S
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@ -29,8 +29,8 @@
* struct ghash_key const *k, const char *head)
*/
ENTRY(pmull_ghash_update)
ld1 {SHASH.16b}, [x3]
ld1 {XL.16b}, [x1]
ld1 {SHASH.2d}, [x3]
ld1 {XL.2d}, [x1]
movi MASK.16b, #0xe1
ext SHASH2.16b, SHASH.16b, SHASH.16b, #8
shl MASK.2d, MASK.2d, #57
@ -74,6 +74,6 @@ CPU_LE( rev64 T1.16b, T1.16b )
cbnz w0, 0b
st1 {XL.16b}, [x1]
st1 {XL.2d}, [x1]
ret
ENDPROC(pmull_ghash_update)