arch/powerpc/lib/xor_vmx_glue.c

   1 /*
   2  * Altivec XOR operations
   3  *
   4  * Copyright 2017 IBM Corp.
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the License, or (at your option) any later version.
  10  */
  11
  12 #include <linux/preempt.h>
  13 #include <linux/export.h>
  14 #include <linux/sched.h>
  15 #include <asm/switch_to.h>
  16 #include "xor_vmx.h"
  17
  18 void xor_altivec_2(unsigned long bytes, unsigned long *v1_in,
  19                    unsigned long *v2_in)
  20 {
  21         preempt_disable();
  22         enable_kernel_altivec();
  23         __xor_altivec_2(bytes, v1_in, v2_in);
  24         disable_kernel_altivec();
  25         preempt_enable();
  26 }
  27 EXPORT_SYMBOL(xor_altivec_2);
  28
  29 void xor_altivec_3(unsigned long bytes,  unsigned long *v1_in,
  30                    unsigned long *v2_in, unsigned long *v3_in)
  31 {
  32         preempt_disable();
  33         enable_kernel_altivec();
  34         __xor_altivec_3(bytes, v1_in, v2_in, v3_in);
  35         disable_kernel_altivec();
  36         preempt_enable();
  37 }
  38 EXPORT_SYMBOL(xor_altivec_3);
  39
  40 void xor_altivec_4(unsigned long bytes,  unsigned long *v1_in,
  41                    unsigned long *v2_in, unsigned long *v3_in,
  42                    unsigned long *v4_in)
  43 {
  44         preempt_disable();
  45         enable_kernel_altivec();
  46         __xor_altivec_4(bytes, v1_in, v2_in, v3_in, v4_in);
  47         disable_kernel_altivec();
  48         preempt_enable();
  49 }
  50 EXPORT_SYMBOL(xor_altivec_4);
  51
  52 void xor_altivec_5(unsigned long bytes,  unsigned long *v1_in,
  53                    unsigned long *v2_in, unsigned long *v3_in,
  54                    unsigned long *v4_in, unsigned long *v5_in)
  55 {
  56         preempt_disable();
  57         enable_kernel_altivec();
  58         __xor_altivec_5(bytes, v1_in, v2_in, v3_in, v4_in, v5_in);
  59         disable_kernel_altivec();
  60         preempt_enable();
  61 }
  62 EXPORT_SYMBOL(xor_altivec_5);