149 lines
2.5 KiB
C
149 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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*
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* Copyright (C) IBM Corporation, 2012
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*
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* Author: Anton Blanchard <anton@au.ibm.com>
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*/
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/*
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* Sparse (as at v0.5.0) gets very, very confused by this file.
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* Make it a bit simpler for it.
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*/
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#if !defined(__CHECKER__)
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#include <altivec.h>
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#else
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#define vec_xor(a, b) a ^ b
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#define vector __attribute__((vector_size(16)))
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#endif
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#include "xor_vmx.h"
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typedef vector signed char unative_t;
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#define DEFINE(V) \
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unative_t *V = (unative_t *)V##_in; \
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unative_t V##_0, V##_1, V##_2, V##_3
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#define LOAD(V) \
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do { \
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V##_0 = V[0]; \
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V##_1 = V[1]; \
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V##_2 = V[2]; \
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V##_3 = V[3]; \
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} while (0)
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#define STORE(V) \
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do { \
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V[0] = V##_0; \
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V[1] = V##_1; \
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V[2] = V##_2; \
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V[3] = V##_3; \
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} while (0)
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#define XOR(V1, V2) \
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do { \
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V1##_0 = vec_xor(V1##_0, V2##_0); \
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V1##_1 = vec_xor(V1##_1, V2##_1); \
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V1##_2 = vec_xor(V1##_2, V2##_2); \
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V1##_3 = vec_xor(V1##_3, V2##_3); \
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} while (0)
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void __xor_altivec_2(unsigned long bytes, unsigned long *v1_in,
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unsigned long *v2_in)
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{
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DEFINE(v1);
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DEFINE(v2);
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unsigned long lines = bytes / (sizeof(unative_t)) / 4;
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do {
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LOAD(v1);
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LOAD(v2);
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XOR(v1, v2);
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STORE(v1);
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v1 += 4;
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v2 += 4;
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} while (--lines > 0);
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}
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void __xor_altivec_3(unsigned long bytes, unsigned long *v1_in,
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unsigned long *v2_in, unsigned long *v3_in)
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{
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DEFINE(v1);
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DEFINE(v2);
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DEFINE(v3);
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unsigned long lines = bytes / (sizeof(unative_t)) / 4;
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do {
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LOAD(v1);
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LOAD(v2);
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LOAD(v3);
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XOR(v1, v2);
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XOR(v1, v3);
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STORE(v1);
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v1 += 4;
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v2 += 4;
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v3 += 4;
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} while (--lines > 0);
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}
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void __xor_altivec_4(unsigned long bytes, unsigned long *v1_in,
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unsigned long *v2_in, unsigned long *v3_in,
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unsigned long *v4_in)
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{
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DEFINE(v1);
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DEFINE(v2);
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DEFINE(v3);
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DEFINE(v4);
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unsigned long lines = bytes / (sizeof(unative_t)) / 4;
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do {
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LOAD(v1);
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LOAD(v2);
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LOAD(v3);
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LOAD(v4);
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XOR(v1, v2);
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XOR(v3, v4);
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XOR(v1, v3);
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STORE(v1);
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v1 += 4;
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v2 += 4;
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v3 += 4;
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v4 += 4;
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} while (--lines > 0);
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}
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void __xor_altivec_5(unsigned long bytes, unsigned long *v1_in,
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unsigned long *v2_in, unsigned long *v3_in,
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unsigned long *v4_in, unsigned long *v5_in)
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{
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DEFINE(v1);
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DEFINE(v2);
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DEFINE(v3);
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DEFINE(v4);
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DEFINE(v5);
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unsigned long lines = bytes / (sizeof(unative_t)) / 4;
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do {
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LOAD(v1);
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LOAD(v2);
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LOAD(v3);
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LOAD(v4);
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LOAD(v5);
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XOR(v1, v2);
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XOR(v3, v4);
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XOR(v1, v5);
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XOR(v1, v3);
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STORE(v1);
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v1 += 4;
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v2 += 4;
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v3 += 4;
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v4 += 4;
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v5 += 4;
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} while (--lines > 0);
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}
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