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Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
148 lines
2.5 KiB
C
148 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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