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 */
35