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| author | David S. Miller <davem@davemloft.net> | 2012-08-29 14:49:23 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-08-29 14:49:23 -0700 |
| commit | 9fd130ecbe97f3440d14d3d0c6660413e69ac532 (patch) | |
| tree | 4f9c108e6a4c305e61e4d7d7044af6822741a15e /arch/sparc/crypto/aes_asm.S | |
| parent | 0bdcaf7495726688a93a2f7226e9b4beaeabd2ec (diff) | |
| download | linux-9fd130ecbe97f3440d14d3d0c6660413e69ac532.tar.bz2 | |
sparc64: Add ctr mode support to AES driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/crypto/aes_asm.S')
| -rw-r--r-- | arch/sparc/crypto/aes_asm.S | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/arch/sparc/crypto/aes_asm.S b/arch/sparc/crypto/aes_asm.S index 50faae03c592..7a975d689919 100644 --- a/arch/sparc/crypto/aes_asm.S +++ b/arch/sparc/crypto/aes_asm.S @@ -44,6 +44,8 @@ .word 0x85b02307; #define MOVXTOD_O0_F0 \ .word 0x81b02308; +#define MOVXTOD_O5_F0 \ + .word 0x81b0230d; #define MOVXTOD_O5_F2 \ .word 0x85b0230d; @@ -1137,3 +1139,96 @@ ENTRY(aes_sparc64_cbc_decrypt_256) retl nop ENDPROC(aes_sparc64_cbc_decrypt_256) + + .align 32 +ENTRY(aes_sparc64_ctr_crypt_128) + /* %o0=key, %o1=input, %o2=output, %o3=len, %o4=IV */ + ldx [%o4 + 0x00], %g3 + ldx [%o4 + 0x08], %g7 + ldx [%o0 + 0x00], %g1 + ldx [%o0 + 0x08], %g2 +1: xor %g1, %g3, %o5 + MOVXTOD_O5_F0 + xor %g2, %g7, %o5 + MOVXTOD_O5_F2 + add %g7, 1, %g7 + add %g3, 1, %o5 + movrz %g7, %o5, %g3 + ENCRYPT_128(8, 0, 2, 4, 6) + ldd [%o1 + 0x00], %f4 + ldd [%o1 + 0x08], %f6 + fxor %f4, %f0, %f4 + fxor %f6, %f2, %f6 + std %f4, [%o2 + 0x00] + std %f6, [%o2 + 0x08] + subcc %o3, 0x10, %o3 + add %o1, 0x10, %o1 + bne,pt %xcc, 1b + add %o2, 0x10, %o2 + stx %g3, [%o4 + 0x00] + stx %g7, [%o4 + 0x08] + retl + nop +ENDPROC(aes_sparc64_ctr_crypt_128) + + .align 32 +ENTRY(aes_sparc64_ctr_crypt_192) + /* %o0=key, %o1=input, %o2=output, %o3=len, %o4=IV */ + ldx [%o4 + 0x00], %g3 + ldx [%o4 + 0x08], %g7 + ldx [%o0 + 0x00], %g1 + ldx [%o0 + 0x08], %g2 +1: xor %g1, %g3, %o5 + MOVXTOD_O5_F0 + xor %g2, %g7, %o5 + MOVXTOD_O5_F2 + add %g7, 1, %g7 + add %g3, 1, %o5 + movrz %g7, %o5, %g3 + ENCRYPT_192(8, 0, 2, 4, 6) + ldd [%o1 + 0x00], %f4 + ldd [%o1 + 0x08], %f6 + fxor %f4, %f0, %f4 + fxor %f6, %f2, %f6 + std %f4, [%o2 + 0x00] + std %f6, [%o2 + 0x08] + subcc %o3, 0x10, %o3 + add %o1, 0x10, %o1 + bne,pt %xcc, 1b + add %o2, 0x10, %o2 + stx %g3, [%o4 + 0x00] + stx %g7, [%o4 + 0x08] + retl + nop +ENDPROC(aes_sparc64_ctr_crypt_192) + + .align 32 +ENTRY(aes_sparc64_ctr_crypt_256) + /* %o0=key, %o1=input, %o2=output, %o3=len, %o4=IV */ + ldx [%o4 + 0x00], %g3 + ldx [%o4 + 0x08], %g7 + ldx [%o0 + 0x00], %g1 + ldx [%o0 + 0x08], %g2 +1: xor %g1, %g3, %o5 + MOVXTOD_O5_F0 + xor %g2, %g7, %o5 + MOVXTOD_O5_F2 + add %g7, 1, %g7 + add %g3, 1, %o5 + movrz %g7, %o5, %g3 + ENCRYPT_256(8, 0, 2, 4, 6) + ldd [%o1 + 0x00], %f4 + ldd [%o1 + 0x08], %f6 + fxor %f4, %f0, %f4 + fxor %f6, %f2, %f6 + std %f4, [%o2 + 0x00] + std %f6, [%o2 + 0x08] + subcc %o3, 0x10, %o3 + add %o1, 0x10, %o1 + bne,pt %xcc, 1b + add %o2, 0x10, %o2 + stx %g3, [%o4 + 0x00] + stx %g7, [%o4 + 0x08] + retl + nop +ENDPROC(aes_sparc64_ctr_crypt_256) |