diff options
| author | Andy Polyakov <appro@openssl.org> | 2016-09-01 10:39:15 +0200 |
|---|---|---|
| committer | Andy Polyakov <appro@openssl.org> | 2016-09-02 13:33:17 +0200 |
| commit | 947716c1872d210828122212d076d503ae68b928 (patch) | |
| tree | cf5de69328e737756a20349f2930f1cd8af5edd1 /crypto/poly1305/asm | |
| parent | a43249122baabb9ebaee0822d683f1fdb60f72a7 (diff) | |
| download | openssl-new-947716c1872d210828122212d076d503ae68b928.tar.gz | |
MIPS assembly pack: adapt it for MIPS[32|64]R6.
MIPS[32|64]R6 is binary and source incompatible with previous MIPS ISA
specifications. Fortunately it's still possible to resolve differences
in source code with standard pre-processor and switching to trap-free
version of addition and subtraction instructions.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Diffstat (limited to 'crypto/poly1305/asm')
| -rwxr-xr-x | crypto/poly1305/asm/poly1305-mips.pl | 50 |
1 files changed, 31 insertions, 19 deletions
diff --git a/crypto/poly1305/asm/poly1305-mips.pl b/crypto/poly1305/asm/poly1305-mips.pl index d2b3e90d93..28b6772ee5 100755 --- a/crypto/poly1305/asm/poly1305-mips.pl +++ b/crypto/poly1305/asm/poly1305-mips.pl @@ -67,6 +67,8 @@ $SAVED_REGS_MASK = ($flavour =~ /nubi/i) ? "0x0003f000" : "0x00030000"; ($in0,$in1,$tmp0,$tmp1,$tmp2,$tmp3,$tmp4) = ($a4,$a5,$a6,$a7,$at,$t0,$t1); $code.=<<___; +#include "mips_arch.h" + #ifdef MIPSEB # define MSB 0 # define LSB 7 @@ -92,10 +94,15 @@ poly1305_init: beqz $inp,.Lno_key +#if defined(_MIPS_ARCH_MIPS64R6) + ld $in0,0($inp) + ld $in1,8($inp) +#else ldl $in0,0+MSB($inp) ldl $in1,8+MSB($inp) ldr $in0,0+LSB($inp) ldr $in1,8+LSB($inp) +#endif #ifdef MIPSEB # if defined(_MIPS_ARCH_MIPS64R2) dsbh $in0,$in0 # byte swap @@ -182,7 +189,7 @@ poly1305_blocks_internal: .frame $sp,6*8,$ra .mask $SAVED_REGS_MASK,-8 .set noreorder - dsub $sp,6*8 + dsubu $sp,6*8 sd $s5,40($sp) sd $s4,32($sp) ___ @@ -204,11 +211,16 @@ $code.=<<___; ld $s1,40($ctx) .Loop: +#if defined(_MIPS_ARCH_MIPS64R6) + ld $in0,0($inp) # load input + ld $in1,8($inp) +#else ldl $in0,0+MSB($inp) # load input ldl $in1,8+MSB($inp) ldr $in0,0+LSB($inp) - daddiu $len,-1 ldr $in1,8+LSB($inp) +#endif + daddiu $len,-1 daddiu $inp,16 #ifdef MIPSEB # if defined(_MIPS_ARCH_MIPS64R2) @@ -258,42 +270,42 @@ $code.=<<___; sltu $tmp1,$h1,$in1 daddu $h1,$tmp0 - dmultu $r0,$h0 # h0*r0 + dmultu ($r0,$h0) # h0*r0 daddu $h2,$padbit sltu $tmp0,$h1,$tmp0 - mflo $d0 - mfhi $d1 + mflo ($d0,$r0,$h0) + mfhi ($d1,$r0,$h0) - dmultu $s1,$h1 # h1*5*r1 + dmultu ($s1,$h1) # h1*5*r1 daddu $tmp0,$tmp1 daddu $h2,$tmp0 - mflo $tmp0 - mfhi $tmp1 + mflo ($tmp0,$s1,$h1) + mfhi ($tmp1,$s1,$h1) - dmultu $r1,$h0 # h0*r1 + dmultu ($r1,$h0) # h0*r1 daddu $d0,$tmp0 daddu $d1,$tmp1 - mflo $tmp2 - mfhi $d2 + mflo ($tmp2,$r1,$h0) + mfhi ($d2,$r1,$h0) sltu $tmp0,$d0,$tmp0 daddu $d1,$tmp0 - dmultu $r0,$h1 # h1*r0 + dmultu ($r0,$h1) # h1*r0 daddu $d1,$tmp2 sltu $tmp2,$d1,$tmp2 - mflo $tmp0 - mfhi $tmp1 + mflo ($tmp0,$r0,$h1) + mfhi ($tmp1,$r0,$h1) daddu $d2,$tmp2 - dmultu $s1,$h2 # h2*5*r1 + dmultu ($s1,$h2) # h2*5*r1 daddu $d1,$tmp0 daddu $d2,$tmp1 - mflo $tmp2 + mflo ($tmp2,$s1,$h2) - dmultu $r0,$h2 # h2*r0 + dmultu ($r0,$h2) # h2*r0 sltu $tmp0,$d1,$tmp0 daddu $d2,$tmp0 - mflo $tmp3 + mflo ($tmp3,$r0,$h2) daddu $d1,$tmp2 daddu $d2,$tmp3 @@ -329,7 +341,7 @@ $code.=<<___ if ($flavour =~ /nubi/i); # optimize non-nubi epilogue ___ $code.=<<___; jr $ra - dadd $sp,6*8 + daddu $sp,6*8 .end poly1305_blocks_internal ___ } |