github-jwinterm/xmr-stak
1
0
Fork 0
mirror of https://github.com/jwinterm/xmr-stak.git synced 2026-10-17 05:41:41 +02:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #832 from taisel/dev

Browse Source 
Optimize Skein
This commit is contained in:
psychocrypt
2018-01-25 20:44:15 +01:00
committed by GitHub
parent ecd1181cd8 ac474caa8b
commit 9edda9ac97
1 changed files with 52 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files
xmrstak/backend/amd/amd_gpu/opencl/wolf-skein.cl
+52 -24
View File
@@ -3,6 +3,7 @@ R"===(
#define WOLF_SKEIN_CL
// Vectorized Skein implementation macros and functions by Wolf
// Updated by taisel
#define SKEIN_KS_PARITY 0x1BD11BDAA9FC1A22
@@ -22,11 +23,11 @@ static const __constant ulong SKEIN512_256_IV[8] =
0xC36FBAF9393AD185UL, 0x3EEDBA1833EDFC13UL
};
#define SKEIN_INJECT_KEY(p, s) do { \
#define SKEIN_INJECT_KEY(p, s, q) do { \
p += h; \
p.s5 += t[s % 3]; \
p.s6 += t[(s + 1) % 3]; \
p.s7 += s; \
p.s5 += t[s]; \
p.s6 += t[select(s + 1U, 0U, s == 2U)]; \
p.s7 += q; \
} while(0)
ulong SKEIN_ROT(const uint2 x, const uint y)
@@ -35,55 +36,55 @@ ulong SKEIN_ROT(const uint2 x, const uint y)
else return(as_ulong(amd_bitalign(x.s10, x, 32 - (y - 32))));
}
void SkeinMix8(ulong4 *pv0, ulong4 *pv1, const uint rc0, const uint rc1, const uint rc2, const uint rc3)
void SkeinMix8(ulong4 *pv0, ulong4 *pv1, const ulong4 rc)
{
*pv0 += *pv1;
(*pv1).s0 = SKEIN_ROT(as_uint2((*pv1).s0), rc0);
(*pv1).s1 = SKEIN_ROT(as_uint2((*pv1).s1), rc1);
(*pv1).s2 = SKEIN_ROT(as_uint2((*pv1).s2), rc2);
(*pv1).s3 = SKEIN_ROT(as_uint2((*pv1).s3), rc3);
(*pv1).s0 = SKEIN_ROT(as_uint2((*pv1).s0), rc.s0);
(*pv1).s1 = SKEIN_ROT(as_uint2((*pv1).s1), rc.s1);
(*pv1).s2 = SKEIN_ROT(as_uint2((*pv1).s2), rc.s2);
(*pv1).s3 = SKEIN_ROT(as_uint2((*pv1).s3), rc.s3);
*pv1 ^= *pv0;
}
ulong8 SkeinEvenRound(ulong8 p, const ulong8 h, const ulong *t, const uint s)
ulong8 SkeinEvenRound(ulong8 p, const ulong8 h, const ulong *t, const uint s, const uint q)
{
SKEIN_INJECT_KEY(p, s);
SKEIN_INJECT_KEY(p, s, q);
ulong4 pv0 = p.even, pv1 = p.odd;
SkeinMix8(&pv0, &pv1, 46, 36, 19, 37);
SkeinMix8(&pv0, &pv1, (ulong4)(46, 36, 19, 37));
pv0 = shuffle(pv0, (ulong4)(1, 2, 3, 0));
pv1 = shuffle(pv1, (ulong4)(0, 3, 2, 1));
SkeinMix8(&pv0, &pv1, 33, 27, 14, 42);
SkeinMix8(&pv0, &pv1, (ulong4)(33, 27, 14, 42));
pv0 = shuffle(pv0, (ulong4)(1, 2, 3, 0));
pv1 = shuffle(pv1, (ulong4)(0, 3, 2, 1));
SkeinMix8(&pv0, &pv1, 17, 49, 36, 39);
SkeinMix8(&pv0, &pv1, (ulong4)(17, 49, 36, 39));
pv0 = shuffle(pv0, (ulong4)(1, 2, 3, 0));
pv1 = shuffle(pv1, (ulong4)(0, 3, 2, 1));
SkeinMix8(&pv0, &pv1, 44, 9, 54, 56);
SkeinMix8(&pv0, &pv1, (ulong4)(44, 9, 54, 56));
return(shuffle2(pv0, pv1, (ulong8)(1, 4, 2, 7, 3, 6, 0, 5)));
}
ulong8 SkeinOddRound(ulong8 p, const ulong8 h, const ulong *t, const uint s)
ulong8 SkeinOddRound(ulong8 p, const ulong8 h, const ulong *t, const uint s, const uint q)
{
SKEIN_INJECT_KEY(p, s);
SKEIN_INJECT_KEY(p, s, q);
ulong4 pv0 = p.even, pv1 = p.odd;
SkeinMix8(&pv0, &pv1, 39, 30, 34, 24);
SkeinMix8(&pv0, &pv1, (ulong4)(39, 30, 34, 24));
pv0 = shuffle(pv0, (ulong4)(1, 2, 3, 0));
pv1 = shuffle(pv1, (ulong4)(0, 3, 2, 1));
SkeinMix8(&pv0, &pv1, 13, 50, 10, 17);
SkeinMix8(&pv0, &pv1, (ulong4)(13, 50, 10, 17));
pv0 = shuffle(pv0, (ulong4)(1, 2, 3, 0));
pv1 = shuffle(pv1, (ulong4)(0, 3, 2, 1));
SkeinMix8(&pv0, &pv1, 25, 29, 39, 43);
SkeinMix8(&pv0, &pv1, (ulong4)(25, 29, 39, 43));
pv0 = shuffle(pv0, (ulong4)(1, 2, 3, 0));
pv1 = shuffle(pv1, (ulong4)(0, 3, 2, 1));
SkeinMix8(&pv0, &pv1, 8, 35, 56, 22);
SkeinMix8(&pv0, &pv1, (ulong4)(8, 35, 56, 22));
return(shuffle2(pv0, pv1, (ulong8)(1, 4, 2, 7, 3, 6, 0, 5)));
}
@@ -92,20 +93,47 @@ ulong8 Skein512Block(ulong8 p, ulong8 h, ulong h8, const ulong *t)
#pragma unroll
for(int i = 0; i < 18; ++i)
{
p = SkeinEvenRound(p, h, t, i);
p = SkeinEvenRound(p, h, t, 0U, i);
++i;
ulong tmp = h.s0;
h = shuffle(h, (ulong8)(1, 2, 3, 4, 5, 6, 7, 0));
h.s7 = h8;
h8 = tmp;
p = SkeinOddRound(p, h, t, i);
p = SkeinOddRound(p, h, t, 1U, i);
++i;
tmp = h.s0;
h = shuffle(h, (ulong8)(1, 2, 3, 4, 5, 6, 7, 0));
h.s7 = h8;
h8 = tmp;
p = SkeinEvenRound(p, h, t, 2U, i);
++i;
tmp = h.s0;
h = shuffle(h, (ulong8)(1, 2, 3, 4, 5, 6, 7, 0));
h.s7 = h8;
h8 = tmp;
p = SkeinOddRound(p, h, t, 0U, i);
++i;
tmp = h.s0;
h = shuffle(h, (ulong8)(1, 2, 3, 4, 5, 6, 7, 0));
h.s7 = h8;
h8 = tmp;
p = SkeinEvenRound(p, h, t, 1U, i);
++i;
tmp = h.s0;
h = shuffle(h, (ulong8)(1, 2, 3, 4, 5, 6, 7, 0));
h.s7 = h8;
h8 = tmp;
p = SkeinOddRound(p, h, t, 2U, i);
tmp = h.s0;
h = shuffle(h, (ulong8)(1, 2, 3, 4, 5, 6, 7, 0));
h.s7 = h8;
h8 = tmp;
}
SKEIN_INJECT_KEY(p, 18);
p += h;
p.s5 += t[0];
p.s6 += t[1];
p.s7 += 18;
return(p);
}