Replace the vector load from memory sequence with a simple instruction
sequence to compose the tweak vector directly.
Signed-off-by: Ard Biesheuvel <ard.biesheu...@linaro.org>
---
arch/arm/crypto/aes-ce-core.S | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/arch/arm/crypto/aes-ce-core.S b/arch/arm/crypto/aes-ce-core.S
index a3ca4ac2d7bb..bb6ec1844370 100644
--- a/arch/arm/crypto/aes-ce-core.S
+++ b/arch/arm/crypto/aes-ce-core.S
@@ -382,13 +382,10 @@ ENDPROC(ce_aes_ctr_encrypt)
veor \out, \out, \tmp
.endm
- .align 3
-.Lxts_mul_x:
- .quad 1, 0x87
-
ce_aes_xts_init:
- vldr d30, .Lxts_mul_x
- vldr d31, .Lxts_mul_x + 8
+ vmov.i32 d30, #0x87 @ compose tweak mask vector
+ vmovl.u32 q15, d30
+ vshr.u64 d30, d31, #7
ldrd r4, r5, [sp, #16] @ load args
ldr r6, [sp, #28]
--
2.17.1
