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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2016-10-11 19:15:14 +0100
committerHerbert Xu <herbert@gondor.apana.org.au>2016-10-21 11:03:43 +0800
commit9c433ad5083fd4a4a3c721d86cbfbd0b2a2326a5 (patch)
treec49fdb72e693962b858c4a41b7d6ca6efd53d70e /arch/arm64/crypto
parentcrypto: arm64/aes-ce - fix for big endian (diff)
downloadlinux-dev-9c433ad5083fd4a4a3c721d86cbfbd0b2a2326a5.tar.xz
linux-dev-9c433ad5083fd4a4a3c721d86cbfbd0b2a2326a5.zip
crypto: arm64/ghash-ce - fix for big endian
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: b913a6404ce2 ("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>
Diffstat (limited to 'arch/arm64/crypto')
-rw-r--r--arch/arm64/crypto/ghash-ce-core.S6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm64/crypto/ghash-ce-core.S b/arch/arm64/crypto/ghash-ce-core.S
index dc457015884e..f0bb9f0b524f 100644
--- a/arch/arm64/crypto/ghash-ce-core.S
+++ b/arch/arm64/crypto/ghash-ce-core.S
@@ -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)