LXR linux/arch/powerpc/include/asm/xor.h

   1/*
   2 * This program is free software; you can redistribute it and/or modify
   3 * it under the terms of the GNU General Public License as published by
   4 * the Free Software Foundation; either version 2 of the License, or
   5 * (at your option) any later version.
   6 *
   7 * This program is distributed in the hope that it will be useful,
   8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
   9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10 * GNU General Public License for more details.
  11 *
  12 * You should have received a copy of the GNU General Public License
  13 * along with this program; if not, write to the Free Software
  14 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  15 *
  16 * Copyright (C) IBM Corporation, 2012
  17 *
  18 * Author: Anton Blanchard <anton@au.ibm.com>
  19 */
  20#ifndef _ASM_POWERPC_XOR_H
  21#define _ASM_POWERPC_XOR_H
  22
  23#ifdef CONFIG_ALTIVEC
  24
  25#include <asm/cputable.h>
  26#include <asm/cpu_has_feature.h>
  27
  28void xor_altivec_2(unsigned long bytes, unsigned long *v1_in,
  29                   unsigned long *v2_in);
  30void xor_altivec_3(unsigned long bytes, unsigned long *v1_in,
  31                   unsigned long *v2_in, unsigned long *v3_in);
  32void xor_altivec_4(unsigned long bytes, unsigned long *v1_in,
  33                   unsigned long *v2_in, unsigned long *v3_in,
  34                   unsigned long *v4_in);
  35void xor_altivec_5(unsigned long bytes, unsigned long *v1_in,
  36                   unsigned long *v2_in, unsigned long *v3_in,
  37                   unsigned long *v4_in, unsigned long *v5_in);
  38
  39static struct xor_block_template xor_block_altivec = {
  40        .name = "altivec",
  41        .do_2 = xor_altivec_2,
  42        .do_3 = xor_altivec_3,
  43        .do_4 = xor_altivec_4,
  44        .do_5 = xor_altivec_5,
  45};
  46
  47#define XOR_SPEED_ALTIVEC()                             \
  48        do {                                            \
  49                if (cpu_has_feature(CPU_FTR_ALTIVEC))   \
  50                        xor_speed(&xor_block_altivec);  \
  51        } while (0)
  52#else
  53#define XOR_SPEED_ALTIVEC()
  54#endif
  55
  56/* Also try the generic routines. */
  57#include <asm-generic/xor.h>
  58
  59#undef XOR_TRY_TEMPLATES
  60#define XOR_TRY_TEMPLATES                               \
  61do {                                                    \
  62        xor_speed(&xor_block_8regs);                    \
  63        xor_speed(&xor_block_8regs_p);                  \
  64        xor_speed(&xor_block_32regs);                   \
  65        xor_speed(&xor_block_32regs_p);                 \
  66        XOR_SPEED_ALTIVEC();                            \
  67} while (0)
  68
  69#endif /* _ASM_POWERPC_XOR_H */
  70