arch/powerpc/lib/xor_vmx_glue.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Altivec XOR operations
   4  *
   5  * Copyright 2017 IBM Corp.
   6  */
   7
   8 #include <linux/preempt.h>
   9 #include <linux/export.h>
  10 #include <linux/sched.h>
  11 #include <asm/switch_to.h>
  12 #include <asm/xor_altivec.h>
  13 #include "xor_vmx.h"
  14
  15 void xor_altivec_2(unsigned long bytes, unsigned long * __restrict p1,
  16                    const unsigned long * __restrict p2)
  17 {
  18         preempt_disable();
  19         enable_kernel_altivec();
  20         __xor_altivec_2(bytes, p1, p2);
  21         disable_kernel_altivec();
  22         preempt_enable();
  23 }
  24 EXPORT_SYMBOL(xor_altivec_2);
  25
  26 void xor_altivec_3(unsigned long bytes, unsigned long * __restrict p1,
  27                    const unsigned long * __restrict p2,
  28                    const unsigned long * __restrict p3)
  29 {
  30         preempt_disable();
  31         enable_kernel_altivec();
  32         __xor_altivec_3(bytes, p1, p2, p3);
  33         disable_kernel_altivec();
  34         preempt_enable();
  35 }
  36 EXPORT_SYMBOL(xor_altivec_3);
  37
  38 void xor_altivec_4(unsigned long bytes, unsigned long * __restrict p1,
  39                    const unsigned long * __restrict p2,
  40                    const unsigned long * __restrict p3,
  41                    const unsigned long * __restrict p4)
  42 {
  43         preempt_disable();
  44         enable_kernel_altivec();
  45         __xor_altivec_4(bytes, p1, p2, p3, p4);
  46         disable_kernel_altivec();
  47         preempt_enable();
  48 }
  49 EXPORT_SYMBOL(xor_altivec_4);
  50
  51 void xor_altivec_5(unsigned long bytes, unsigned long * __restrict p1,
  52                    const unsigned long * __restrict p2,
  53                    const unsigned long * __restrict p3,
  54                    const unsigned long * __restrict p4,
  55                    const unsigned long * __restrict p5)
  56 {
  57         preempt_disable();
  58         enable_kernel_altivec();
  59         __xor_altivec_5(bytes, p1, p2, p3, p4, p5);
  60         disable_kernel_altivec();
  61         preempt_enable();
  62 }
  63 EXPORT_SYMBOL(xor_altivec_5);