linux/arch/microblaze/include/asm/entry.h
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   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Definitions used by low-level trap handlers
   4 *
   5 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
   6 * Copyright (C) 2007-2009 PetaLogix
   7 * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
   8 */
   9
  10#ifndef _ASM_MICROBLAZE_ENTRY_H
  11#define _ASM_MICROBLAZE_ENTRY_H
  12
  13#include <asm/percpu.h>
  14#include <asm/ptrace.h>
  15#include <linux/linkage.h>
  16
  17/*
  18 * These are per-cpu variables required in entry.S, among other
  19 * places
  20 */
  21
  22#define PER_CPU(var) var
  23
  24# ifndef __ASSEMBLY__
  25DECLARE_PER_CPU(unsigned int, KSP); /* Saved kernel stack pointer */
  26DECLARE_PER_CPU(unsigned int, KM); /* Kernel/user mode */
  27DECLARE_PER_CPU(unsigned int, ENTRY_SP); /* Saved SP on kernel entry */
  28DECLARE_PER_CPU(unsigned int, R11_SAVE); /* Temp variable for entry */
  29DECLARE_PER_CPU(unsigned int, CURRENT_SAVE); /* Saved current pointer */
  30
  31extern asmlinkage void do_notify_resume(struct pt_regs *regs, int in_syscall);
  32# endif /* __ASSEMBLY__ */
  33
  34#endif /* _ASM_MICROBLAZE_ENTRY_H */
  35