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#include "ec_base_vsx.h"
void gf_2vect_dot_prod_vsx(int len, int vlen, unsigned char *gftbls,
unsigned char **src, unsigned char **dest)
{
unsigned char *s, *t0, *t1;
vector unsigned char vX1, vX2, vX3, vX4;
vector unsigned char vY1, vY2, vY3, vY4;
vector unsigned char vYD, vYE, vYF, vYG;
vector unsigned char vhi0, vlo0, vhi1, vlo1;
int i, j, head;
if (vlen < 128) {
gf_vect_mul_vsx(len, &gftbls[0 * 32 * vlen], src[0], (unsigned char *)dest[0]);
gf_vect_mul_vsx(len, &gftbls[1 * 32 * vlen], src[0], (unsigned char *)dest[1]);
for (j = 1; j < vlen; j++) {
gf_2vect_mad_vsx(len, vlen, j, gftbls, src[j], dest);
}
return;
}
t0 = (unsigned char *)dest[0];
t1 = (unsigned char *)dest[1];
head = len % 64;
if (head != 0) {
gf_vect_dot_prod_base(head, vlen, &gftbls[0 * 32 * vlen], src, t0);
gf_vect_dot_prod_base(head, vlen, &gftbls[1 * 32 * vlen], src, t1);
}
for (i = head; i < len - 63; i += 64) {
vY1 = vY1 ^ vY1;
vY2 = vY2 ^ vY2;
vY3 = vY3 ^ vY3;
vY4 = vY4 ^ vY4;
vYD = vYD ^ vYD;
vYE = vYE ^ vYE;
vYF = vYF ^ vYF;
vYG = vYG ^ vYG;
unsigned char *g0 = &gftbls[0 * 32 * vlen];
unsigned char *g1 = &gftbls[1 * 32 * vlen];
for (j = 0; j < vlen; j++) {
s = (unsigned char *)src[j];
vX1 = vec_xl(0, s + i);
vX2 = vec_xl(16, s + i);
vX3 = vec_xl(32, s + i);
vX4 = vec_xl(48, s + i);
vlo0 = EC_vec_xl(0, g0);
vhi0 = EC_vec_xl(16, g0);
vlo1 = EC_vec_xl(0, g1);
vhi1 = EC_vec_xl(16, g1);
vY1 = vY1 ^ EC_vec_permxor(vhi0, vlo0, vX1);
vY2 = vY2 ^ EC_vec_permxor(vhi0, vlo0, vX2);
vYD = vYD ^ EC_vec_permxor(vhi0, vlo0, vX3);
vYE = vYE ^ EC_vec_permxor(vhi0, vlo0, vX4);
vY3 = vY3 ^ EC_vec_permxor(vhi1, vlo1, vX1);
vY4 = vY4 ^ EC_vec_permxor(vhi1, vlo1, vX2);
vYF = vYF ^ EC_vec_permxor(vhi1, vlo1, vX3);
vYG = vYG ^ EC_vec_permxor(vhi1, vlo1, vX4);
g0 += 32;
g1 += 32;
}
vec_xst(vY1, 0, t0 + i);
vec_xst(vY2, 16, t0 + i);
vec_xst(vY3, 0, t1 + i);
vec_xst(vY4, 16, t1 + i);
vec_xst(vYD, 32, t0 + i);
vec_xst(vYE, 48, t0 + i);
vec_xst(vYF, 32, t1 + i);
vec_xst(vYG, 48, t1 + i);
}
return;
}
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