diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2019-09-03 18:43:28 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-09-09 09:35:28 +0200 |
| commit | 7a3b1c6ee761b7b2e49e01f0f2922c3ace3aa5b3 (patch) | |
| tree | 249bef41669d784f4028dc081039f631312b8698 /arch | |
| parent | crypto: arm/aes-neonbs - replace tweak mask literal with composition (diff) | |
| download | linux-7a3b1c6ee761b7b2e49e01f0f2922c3ace3aa5b3.tar.xz linux-7a3b1c6ee761b7b2e49e01f0f2922c3ace3aa5b3.zip | |
crypto: arm64/aes-neonbs - replace tweak mask literal with composition
Replace the vector load from memory sequence with a simple instruction
sequence to compose the tweak vector directly.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/crypto/aes-neonbs-core.S | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/arch/arm64/crypto/aes-neonbs-core.S b/arch/arm64/crypto/aes-neonbs-core.S index cf10ff8878a3..65982039fa36 100644 --- a/arch/arm64/crypto/aes-neonbs-core.S +++ b/arch/arm64/crypto/aes-neonbs-core.S @@ -730,11 +730,6 @@ ENDPROC(aesbs_cbc_decrypt) eor \out\().16b, \out\().16b, \tmp\().16b .endm - .align 4 -.Lxts_mul_x: -CPU_LE( .quad 1, 0x87 ) -CPU_BE( .quad 0x87, 1 ) - /* * aesbs_xts_encrypt(u8 out[], u8 const in[], u8 const rk[], int rounds, * int blocks, u8 iv[]) @@ -806,7 +801,9 @@ ENDPROC(__xts_crypt8) mov x23, x4 mov x24, x5 -0: ldr q30, .Lxts_mul_x +0: movi v30.2s, #0x1 + movi v25.2s, #0x87 + uzp1 v30.4s, v30.4s, v25.4s ld1 {v25.16b}, [x24] 99: adr x7, \do8 |