diff options
Diffstat (limited to 'arch/arm64/crypto/sm4-neon-core.S')
-rw-r--r-- | arch/arm64/crypto/sm4-neon-core.S | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/arch/arm64/crypto/sm4-neon-core.S b/arch/arm64/crypto/sm4-neon-core.S index f295b4b7d70a..734dc7193610 100644 --- a/arch/arm64/crypto/sm4-neon-core.S +++ b/arch/arm64/crypto/sm4-neon-core.S @@ -438,119 +438,6 @@ SYM_FUNC_START(sm4_neon_cbc_dec) SYM_FUNC_END(sm4_neon_cbc_dec) .align 3 -SYM_FUNC_START(sm4_neon_cfb_dec) - /* input: - * x0: round key array, CTX - * x1: dst - * x2: src - * x3: iv (big endian, 128 bit) - * w4: nblocks - */ - SM4_PREPARE() - - ld1 {v0.16b}, [x3] - -.Lcfb_dec_loop_8x: - sub w4, w4, #8 - tbnz w4, #31, .Lcfb_dec_4x - - ld1 {v1.16b-v3.16b}, [x2], #48 - ld4 {v4.4s-v7.4s}, [x2] - - transpose_4x4(v0, v1, v2, v3) - - SM4_CRYPT_BLK8(v0, v1, v2, v3, v4, v5, v6, v7) - - sub x2, x2, #48 - ld1 {RTMP0.16b-RTMP3.16b}, [x2], #64 - ld1 {RTMP4.16b-RTMP7.16b}, [x2], #64 - - eor v0.16b, v0.16b, RTMP0.16b - eor v1.16b, v1.16b, RTMP1.16b - eor v2.16b, v2.16b, RTMP2.16b - eor v3.16b, v3.16b, RTMP3.16b - eor v4.16b, v4.16b, RTMP4.16b - eor v5.16b, v5.16b, RTMP5.16b - eor v6.16b, v6.16b, RTMP6.16b - eor v7.16b, v7.16b, RTMP7.16b - - st1 {v0.16b-v3.16b}, [x1], #64 - st1 {v4.16b-v7.16b}, [x1], #64 - - mov v0.16b, RTMP7.16b - - cbz w4, .Lcfb_dec_end - b .Lcfb_dec_loop_8x - -.Lcfb_dec_4x: - add w4, w4, #8 - cmp w4, #4 - blt .Lcfb_dec_tail - - sub w4, w4, #4 - - ld1 {v4.16b-v7.16b}, [x2], #64 - - rev32 v0.16b, v0.16b /* v0 is IV register */ - rev32 v1.16b, v4.16b - rev32 v2.16b, v5.16b - rev32 v3.16b, v6.16b - - transpose_4x4(v0, v1, v2, v3) - - SM4_CRYPT_BLK4_BE(v0, v1, v2, v3) - - eor v0.16b, v0.16b, v4.16b - eor v1.16b, v1.16b, v5.16b - eor v2.16b, v2.16b, v6.16b - eor v3.16b, v3.16b, v7.16b - - st1 {v0.16b-v3.16b}, [x1], #64 - - mov v0.16b, v7.16b - - cbz w4, .Lcfb_dec_end - -.Lcfb_dec_tail: - cmp w4, #2 - ld1 {v4.16b}, [x2], #16 - blt .Lcfb_dec_tail_load_done - ld1 {v5.16b}, [x2], #16 - beq .Lcfb_dec_tail_load_done - ld1 {v6.16b}, [x2], #16 - -.Lcfb_dec_tail_load_done: - rev32 v0.16b, v0.16b /* v0 is IV register */ - rev32 v1.16b, v4.16b - rev32 v2.16b, v5.16b - - transpose_4x4(v0, v1, v2, v3) - - SM4_CRYPT_BLK4_BE(v0, v1, v2, v3) - - cmp w4, #2 - eor v0.16b, v0.16b, v4.16b - st1 {v0.16b}, [x1], #16 - mov v0.16b, v4.16b - blt .Lcfb_dec_end - - eor v1.16b, v1.16b, v5.16b - st1 {v1.16b}, [x1], #16 - mov v0.16b, v5.16b - beq .Lcfb_dec_end - - eor v2.16b, v2.16b, v6.16b - st1 {v2.16b}, [x1], #16 - mov v0.16b, v6.16b - -.Lcfb_dec_end: - /* store new IV */ - st1 {v0.16b}, [x3] - - ret -SYM_FUNC_END(sm4_neon_cfb_dec) - -.align 3 SYM_FUNC_START(sm4_neon_ctr_crypt) /* input: * x0: round key array, CTX |