arch/microblaze/include/asm/entry.h

   1 /*
   2  * Definitions used by low-level trap handlers
   3  *
   4  * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
   5  * Copyright (C) 2007-2009 PetaLogix
   6  * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
   7  *
   8  * This file is subject to the terms and conditions of the GNU General
   9  * Public License. See the file COPYING in the main directory of this
  10  * archive for more details.
  11  */
  12
  13 #ifndef _ASM_MICROBLAZE_ENTRY_H
  14 #define _ASM_MICROBLAZE_ENTRY_H
  15
  16 #include <asm/percpu.h>
  17 #include <asm/ptrace.h>
  18 #include <linux/linkage.h>
  19
  20 /*
  21  * These are per-cpu variables required in entry.S, among other
  22  * places
  23  */
  24
  25 #define PER_CPU(var) var
  26
  27 # ifndef __ASSEMBLY__
  28 DECLARE_PER_CPU(unsigned int, KSP); /* Saved kernel stack pointer */
  29 DECLARE_PER_CPU(unsigned int, KM); /* Kernel/user mode */
  30 DECLARE_PER_CPU(unsigned int, ENTRY_SP); /* Saved SP on kernel entry */
  31 DECLARE_PER_CPU(unsigned int, R11_SAVE); /* Temp variable for entry */
  32 DECLARE_PER_CPU(unsigned int, CURRENT_SAVE); /* Saved current pointer */
  33
  34 extern asmlinkage void do_notify_resume(struct pt_regs *regs, int in_syscall);
  35 # endif /* __ASSEMBLY__ */
  36
  37 #endif /* _ASM_MICROBLAZE_ENTRY_H */