kernel/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
  27 void xor_altivec_2(unsigned long bytes, unsigned long *v1_in,
  28                    unsigned long *v2_in);
  29 void xor_altivec_3(unsigned long bytes, unsigned long *v1_in,
  30                    unsigned long *v2_in, unsigned long *v3_in);
  31 void xor_altivec_4(unsigned long bytes, unsigned long *v1_in,
  32                    unsigned long *v2_in, unsigned long *v3_in,
  33                    unsigned long *v4_in);
  34 void 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
  38 static 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                               \
  60 do {                                                    \
  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 */