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f91f0fd5 TL |
1 | #include "ec_base_vsx.h" |
2 | ||
3 | void gf_5vect_dot_prod_vsx(int len, int vlen, unsigned char *gftbls, | |
4 | unsigned char **src, unsigned char **dest) | |
5 | { | |
6 | unsigned char *s, *t0, *t1, *t2, *t3, *t4; | |
7 | vector unsigned char vX1, vX2, vX3, vX4; | |
8 | vector unsigned char vY1, vY2, vY3, vY4, vY5, vY6, vY7, vY8, vY9, vYA; | |
9 | vector unsigned char vYD, vYE, vYF, vYG, vYH, vYI, vYJ, vYK, vYL, vYM; | |
10 | vector unsigned char vhi0, vlo0, vhi1, vlo1, vhi2, vlo2, vhi3, vlo3, vhi4, vlo4; | |
11 | int i, j, head; | |
12 | ||
13 | if (vlen < 128) { | |
14 | gf_vect_mul_vsx(len, &gftbls[0 * 32 * vlen], src[0], (unsigned char *)dest[0]); | |
15 | gf_vect_mul_vsx(len, &gftbls[1 * 32 * vlen], src[0], (unsigned char *)dest[1]); | |
16 | gf_vect_mul_vsx(len, &gftbls[2 * 32 * vlen], src[0], (unsigned char *)dest[2]); | |
17 | gf_vect_mul_vsx(len, &gftbls[3 * 32 * vlen], src[0], (unsigned char *)dest[3]); | |
18 | gf_vect_mul_vsx(len, &gftbls[4 * 32 * vlen], src[0], (unsigned char *)dest[4]); | |
19 | ||
20 | for (j = 1; j < vlen; j++) { | |
21 | gf_5vect_mad_vsx(len, vlen, j, gftbls, src[j], dest); | |
22 | } | |
23 | return; | |
24 | } | |
25 | ||
26 | t0 = (unsigned char *)dest[0]; | |
27 | t1 = (unsigned char *)dest[1]; | |
28 | t2 = (unsigned char *)dest[2]; | |
29 | t3 = (unsigned char *)dest[3]; | |
30 | t4 = (unsigned char *)dest[4]; | |
31 | ||
32 | head = len % 64; | |
33 | if (head != 0) { | |
34 | gf_vect_dot_prod_base(head, vlen, &gftbls[0 * 32 * vlen], src, t0); | |
35 | gf_vect_dot_prod_base(head, vlen, &gftbls[1 * 32 * vlen], src, t1); | |
36 | gf_vect_dot_prod_base(head, vlen, &gftbls[2 * 32 * vlen], src, t2); | |
37 | gf_vect_dot_prod_base(head, vlen, &gftbls[3 * 32 * vlen], src, t3); | |
38 | gf_vect_dot_prod_base(head, vlen, &gftbls[4 * 32 * vlen], src, t4); | |
39 | } | |
40 | ||
41 | for (i = head; i < len - 63; i += 64) { | |
42 | vY1 = vY1 ^ vY1; | |
43 | vY2 = vY2 ^ vY2; | |
44 | vY3 = vY3 ^ vY3; | |
45 | vY4 = vY4 ^ vY4; | |
46 | vY5 = vY5 ^ vY5; | |
47 | vY6 = vY6 ^ vY6; | |
48 | vY7 = vY7 ^ vY7; | |
49 | vY8 = vY8 ^ vY8; | |
50 | vY9 = vY9 ^ vY9; | |
51 | vYA = vYA ^ vYA; | |
52 | ||
53 | vYD = vYD ^ vYD; | |
54 | vYE = vYE ^ vYE; | |
55 | vYF = vYF ^ vYF; | |
56 | vYG = vYG ^ vYG; | |
57 | vYH = vYH ^ vYH; | |
58 | vYI = vYI ^ vYI; | |
59 | vYJ = vYJ ^ vYJ; | |
60 | vYK = vYK ^ vYK; | |
61 | vYL = vYL ^ vYL; | |
62 | vYM = vYM ^ vYM; | |
63 | ||
64 | unsigned char *g0 = &gftbls[0 * 32 * vlen]; | |
65 | unsigned char *g1 = &gftbls[1 * 32 * vlen]; | |
66 | unsigned char *g2 = &gftbls[2 * 32 * vlen]; | |
67 | unsigned char *g3 = &gftbls[3 * 32 * vlen]; | |
68 | unsigned char *g4 = &gftbls[4 * 32 * vlen]; | |
69 | ||
70 | for (j = 0; j < vlen; j++) { | |
71 | s = (unsigned char *)src[j]; | |
72 | vX1 = vec_xl(0, s + i); | |
73 | vX2 = vec_xl(16, s + i); | |
74 | vX3 = vec_xl(32, s + i); | |
75 | vX4 = vec_xl(48, s + i); | |
76 | ||
77 | vlo0 = EC_vec_xl(0, g0); | |
78 | vhi0 = EC_vec_xl(16, g0); | |
79 | vlo1 = EC_vec_xl(0, g1); | |
80 | vhi1 = EC_vec_xl(16, g1); | |
81 | ||
82 | vY1 = vY1 ^ EC_vec_permxor(vhi0, vlo0, vX1); | |
83 | vY2 = vY2 ^ EC_vec_permxor(vhi0, vlo0, vX2); | |
84 | vYD = vYD ^ EC_vec_permxor(vhi0, vlo0, vX3); | |
85 | vYE = vYE ^ EC_vec_permxor(vhi0, vlo0, vX4); | |
86 | ||
87 | vlo2 = vec_xl(0, g2); | |
88 | vhi2 = vec_xl(16, g2); | |
89 | vlo3 = vec_xl(0, g3); | |
90 | vhi3 = vec_xl(16, g3); | |
91 | ||
92 | vY3 = vY3 ^ EC_vec_permxor(vhi1, vlo1, vX1); | |
93 | vY4 = vY4 ^ EC_vec_permxor(vhi1, vlo1, vX2); | |
94 | vYF = vYF ^ EC_vec_permxor(vhi1, vlo1, vX3); | |
95 | vYG = vYG ^ EC_vec_permxor(vhi1, vlo1, vX4); | |
96 | ||
97 | vlo4 = vec_xl(0, g4); | |
98 | vhi4 = vec_xl(16, g4); | |
99 | ||
100 | vY5 = vY5 ^ EC_vec_permxor(vhi2, vlo2, vX1); | |
101 | vY6 = vY6 ^ EC_vec_permxor(vhi2, vlo2, vX2); | |
102 | vYH = vYH ^ EC_vec_permxor(vhi2, vlo2, vX3); | |
103 | vYI = vYI ^ EC_vec_permxor(vhi2, vlo2, vX4); | |
104 | ||
105 | vY7 = vY7 ^ EC_vec_permxor(vhi3, vlo3, vX1); | |
106 | vY8 = vY8 ^ EC_vec_permxor(vhi3, vlo3, vX2); | |
107 | vYJ = vYJ ^ EC_vec_permxor(vhi3, vlo3, vX3); | |
108 | vYK = vYK ^ EC_vec_permxor(vhi3, vlo3, vX4); | |
109 | ||
110 | vY9 = vY9 ^ EC_vec_permxor(vhi4, vlo4, vX1); | |
111 | vYA = vYA ^ EC_vec_permxor(vhi4, vlo4, vX2); | |
112 | vYL = vYL ^ EC_vec_permxor(vhi4, vlo4, vX3); | |
113 | vYM = vYM ^ EC_vec_permxor(vhi4, vlo4, vX4); | |
114 | ||
115 | g0 += 32; | |
116 | g1 += 32; | |
117 | g2 += 32; | |
118 | g3 += 32; | |
119 | g4 += 32; | |
120 | } | |
121 | ||
122 | vec_xst(vY1, 0, t0 + i); | |
123 | vec_xst(vY2, 16, t0 + i); | |
124 | vec_xst(vY3, 0, t1 + i); | |
125 | vec_xst(vY4, 16, t1 + i); | |
126 | vec_xst(vY5, 0, t2 + i); | |
127 | vec_xst(vY6, 16, t2 + i); | |
128 | vec_xst(vY7, 0, t3 + i); | |
129 | vec_xst(vY8, 16, t3 + i); | |
130 | vec_xst(vY9, 0, t4 + i); | |
131 | vec_xst(vYA, 16, t4 + i); | |
132 | ||
133 | vec_xst(vYD, 32, t0 + i); | |
134 | vec_xst(vYE, 48, t0 + i); | |
135 | vec_xst(vYF, 32, t1 + i); | |
136 | vec_xst(vYG, 48, t1 + i); | |
137 | vec_xst(vYH, 32, t2 + i); | |
138 | vec_xst(vYI, 48, t2 + i); | |
139 | vec_xst(vYJ, 32, t3 + i); | |
140 | vec_xst(vYK, 48, t3 + i); | |
141 | vec_xst(vYL, 32, t4 + i); | |
142 | vec_xst(vYM, 48, t4 + i); | |
143 | } | |
144 | return; | |
145 | } |