Lines Matching +full:p +full:- +full:384
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
5 # Copyright 2023- IBM Corp. All rights reserved
10 # Poly1305 - this version mainly using vector/VSX/Scalar
11 # - 26 bits limbs
12 # - Handle multiple 64 byte blcok.
17 # p = 2^130 - 5
19 # a = (r + a) % p
25 # 07/22/21 - this revison based on the above sum of products. Setup r^4, r^3, r^2, r and s3, s2, …
56 #include <asm/asm-offsets.h>
57 #include <asm/asm-compat.h>
95 stdu 1,-752(1)
142 SAVE_VSX 26, 384, 9
177 RESTORE_VSX 26, 384, 9
209 # p[0] = a0*r0 + a1*r4*5 + a2*r3*5 + a3*r2*5 + a4*r1*5;
210 # p[1] = a0*r1 + a1*r0 + a2*r4*5 + a3*r3*5 + a4*r2*5;
211 # p[2] = a0*r2 + a1*r1 + a2*r0 + a3*r4*5 + a4*r3*5;
212 # p[3] = a0*r3 + a1*r2 + a2*r1 + a3*r0 + a4*r4*5;
213 # p[4] = a0*r4 + a1*r3 + a2*r2 + a3*r1 + a4*r0 ;
440 # do reduction ( h %= p )
486 lvx 25, 0, 10 # v25 - mask
619 addi 5, 5, -64 # len -= 64
633 # h3 = (h1 + m3) * r^2, h4 = (h2 + m4) * r^2 --> (h0 + m1) r*4 + (h3 + m3) r^2, (h0 + m2) r^4 + (h…
635 # h5 = (h3 + m5) * r^2, h6 = (h4 + m6) * r^2 -->
636 # h7 = (h5 + m7) * r^2, h8 = (h6 + m8) * r^1 --> m5 * r^4 + m6 * r^3 + m7 * r^2 + m8 * r
729 addi 5, 5, -64 # len -= 64
857 add 19, 21, 10 # s1: r19 - (r1 >> 2) *5
891 # h %=p
916 # h *= r, h %= p
923 # - no highbit if final leftover block (highbit = 0)
931 stdu 1,-400(1)
1039 # h + 5 + (-p)