diff options
Diffstat (limited to 'arch/arm64/crypto/aes-ce-ccm-core.S')
| -rw-r--r-- | arch/arm64/crypto/aes-ce-ccm-core.S | 40 |
1 files changed, 20 insertions, 20 deletions
diff --git a/arch/arm64/crypto/aes-ce-ccm-core.S b/arch/arm64/crypto/aes-ce-ccm-core.S index 9add9bbc48d8..b03f7f71f893 100644 --- a/arch/arm64/crypto/aes-ce-ccm-core.S +++ b/arch/arm64/crypto/aes-ce-ccm-core.S @@ -12,22 +12,21 @@ .arch armv8-a+crypto /* - * void ce_aes_ccm_auth_data(u8 mac[], u8 const in[], u32 abytes, - * u32 *macp, u8 const rk[], u32 rounds); + * u32 ce_aes_ccm_auth_data(u8 mac[], u8 const in[], u32 abytes, + * u32 macp, u8 const rk[], u32 rounds); */ -ENTRY(ce_aes_ccm_auth_data) - ldr w8, [x3] /* leftover from prev round? */ +SYM_FUNC_START(ce_aes_ccm_auth_data) ld1 {v0.16b}, [x0] /* load mac */ - cbz w8, 1f - sub w8, w8, #16 + cbz w3, 1f + sub w3, w3, #16 eor v1.16b, v1.16b, v1.16b 0: ldrb w7, [x1], #1 /* get 1 byte of input */ subs w2, w2, #1 - add w8, w8, #1 + add w3, w3, #1 ins v1.b[0], w7 ext v1.16b, v1.16b, v1.16b, #1 /* rotate in the input bytes */ beq 8f /* out of input? */ - cbnz w8, 0b + cbnz w3, 0b eor v0.16b, v0.16b, v1.16b 1: ld1 {v3.4s}, [x4] /* load first round key */ prfm pldl1strm, [x1] @@ -62,7 +61,7 @@ ENTRY(ce_aes_ccm_auth_data) beq 10f adds w2, w2, #16 beq 10f - mov w8, w2 + mov w3, w2 7: ldrb w7, [x1], #1 umov w6, v0.b[0] eor w6, w6, w7 @@ -71,23 +70,23 @@ ENTRY(ce_aes_ccm_auth_data) beq 10f ext v0.16b, v0.16b, v0.16b, #1 /* rotate out the mac bytes */ b 7b -8: cbz w8, 91f - mov w7, w8 - add w8, w8, #16 +8: cbz w3, 91f + mov w7, w3 + add w3, w3, #16 9: ext v1.16b, v1.16b, v1.16b, #1 adds w7, w7, #1 bne 9b 91: eor v0.16b, v0.16b, v1.16b st1 {v0.16b}, [x0] -10: str w8, [x3] +10: mov w0, w3 ret -ENDPROC(ce_aes_ccm_auth_data) +SYM_FUNC_END(ce_aes_ccm_auth_data) /* * void ce_aes_ccm_final(u8 mac[], u8 const ctr[], u8 const rk[], * u32 rounds); */ -ENTRY(ce_aes_ccm_final) +SYM_FUNC_START(ce_aes_ccm_final) ld1 {v3.4s}, [x2], #16 /* load first round key */ ld1 {v0.16b}, [x0] /* load mac */ cmp w3, #12 /* which key size? */ @@ -121,9 +120,10 @@ ENTRY(ce_aes_ccm_final) eor v0.16b, v0.16b, v1.16b /* en-/decrypt the mac */ st1 {v0.16b}, [x0] /* store result */ ret -ENDPROC(ce_aes_ccm_final) +SYM_FUNC_END(ce_aes_ccm_final) .macro aes_ccm_do_crypt,enc + cbz x2, 5f ldr x8, [x6, #8] /* load lower ctr */ ld1 {v0.16b}, [x5] /* load mac */ CPU_LE( rev x8, x8 ) /* keep swabbed ctr in reg */ @@ -212,10 +212,10 @@ CPU_LE( rev x8, x8 ) * u8 const rk[], u32 rounds, u8 mac[], * u8 ctr[]); */ -ENTRY(ce_aes_ccm_encrypt) +SYM_FUNC_START(ce_aes_ccm_encrypt) aes_ccm_do_crypt 1 -ENDPROC(ce_aes_ccm_encrypt) +SYM_FUNC_END(ce_aes_ccm_encrypt) -ENTRY(ce_aes_ccm_decrypt) +SYM_FUNC_START(ce_aes_ccm_decrypt) aes_ccm_do_crypt 0 -ENDPROC(ce_aes_ccm_decrypt) +SYM_FUNC_END(ce_aes_ccm_decrypt) |