LXR linux/arch/microblaze/include/asm/current.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
   4 * Copyright (C) 2008-2009 PetaLogix
   5 * Copyright (C) 2006 Atmark Techno, Inc.
   6 */
   7
   8#ifndef _ASM_MICROBLAZE_CURRENT_H
   9#define _ASM_MICROBLAZE_CURRENT_H
  10
  11/*
  12 * Register used to hold the current task pointer while in the kernel.
  13 * Any `call clobbered' register without a special meaning should be OK,
  14 * but check asm/microblaze/kernel/entry.S to be sure.
  15 */
  16#define CURRENT_TASK    r31
  17# ifndef __ASSEMBLY__
  18/*
  19 * Dedicate r31 to keeping the current task pointer
  20 */
  21register struct task_struct *current asm("r31");
  22
  23# define get_current()  current
  24# endif /* __ASSEMBLY__ */
  25
  26#endif /* _ASM_MICROBLAZE_CURRENT_H */
  27