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
  27void xor_altivec_2(unsigned long bytes, unsigned long *v1_in,
  28                   unsigned long *v2_in);
  29void xor_altivec_3(unsigned long bytes, unsigned long *v1_in,
  30                   unsigned long *v2_in, unsigned long *v3_in);
  31void xor_altivec_4(unsigned long bytes, unsigned long *v1_in,
  32                   unsigned long *v2_in, unsigned long *v3_in,
  33                   unsigned long *v4_in);
  34void xor_altivec_5(unsigned long bytes, unsigned long *v1_in,
  35                   unsigned long *v2_in, unsigned long *v3_in,
  36                   unsigned long *v4_in, unsigned long *v5_in);
  37
  38static struct xor_block_template xor_block_altivec = {
  39        .name = "altivec",
  40        .do_2 = xor_altivec_2,
  41        .do_3 = xor_altivec_3,
  42        .do_4 = xor_altivec_4,
  43        .do_5 = xor_altivec_5,
  44};
  45
  46#define XOR_SPEED_ALTIVEC()                             \
  47        do {                                            \
  48                if (cpu_has_feature(CPU_FTR_ALTIVEC))   \
  49                        xor_speed(&xor_block_altivec);  \
  50        } while (0)
  51#else
  52#define XOR_SPEED_ALTIVEC()
  53#endif
  54
  55/* Also try the generic routines. */
  56#include <asm-generic/xor.h>
  57
  58#undef XOR_TRY_TEMPLATES
  59#define XOR_TRY_TEMPLATES                               \
  60do {                                                    \
  61        xor_speed(&xor_block_8regs);                    \
  62        xor_speed(&xor_block_8regs_p);                  \
  63        xor_speed(&xor_block_32regs);                   \
  64        xor_speed(&xor_block_32regs_p);                 \
  65        XOR_SPEED_ALTIVEC();                            \
  66} while (0)
  67
  68#endif /* _ASM_POWERPC_XOR_H */
  69