include/linux/simd_aarch64.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright (C) 2016 Romain Dolbeau <romain@dolbeau.org>.
  23  */
  24
  25 /*
  26  * USER API:
  27  *
  28  * Kernel fpu methods:
  29  *      kfpu_begin()
  30  *      kfpu_end()
  31  */
  32
  33 #ifndef _SIMD_AARCH64_H
  34 #define _SIMD_AARCH64_H
  35
  36 #include <sys/isa_defs.h>
  37
  38 #if defined(__aarch64__)
  39
  40 #include <sys/types.h>
  41
  42 #if defined(_KERNEL)
  43 #include <asm/neon.h>
  44 #define kfpu_begin()            \
  45 {                                       \
  46         kernel_neon_begin();            \
  47 }
  48 #define kfpu_end()                      \
  49 {                                       \
  50         kernel_neon_end();              \
  51 }
  52 #else
  53 /*
  54  * fpu dummy methods for userspace
  55  */
  56 #define kfpu_begin()    do {} while (0)
  57 #define kfpu_end()              do {} while (0)
  58 #endif /* defined(_KERNEL) */
  59
  60 #endif /* __aarch64__ */
  61
  62 #endif /* _SIMD_AARCH64_H */