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 */
38