arch/microblaze/include/asm/entry.h

   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__
  25 DECLARE_PER_CPU(unsigned int, KSP); /* Saved kernel stack pointer */
  26 DECLARE_PER_CPU(unsigned int, KM); /* Kernel/user mode */
  27 DECLARE_PER_CPU(unsigned int, ENTRY_SP); /* Saved SP on kernel entry */
  28 DECLARE_PER_CPU(unsigned int, R11_SAVE); /* Temp variable for entry */
  29 DECLARE_PER_CPU(unsigned int, CURRENT_SAVE); /* Saved current pointer */
  30
  31 extern asmlinkage void do_notify_resume(struct pt_regs *regs, int in_syscall);
  32 # endif /* __ASSEMBLY__ */
  33
  34 #endif /* _ASM_MICROBLAZE_ENTRY_H */