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/*
* Definitions used by low-level trap handlers
*
* Copyright (C) 2008 Michal Simek
* Copyright (C) 2007 - 2008 PetaLogix
* Copyright (C) 2007 John Williams <john.williams@petalogix.com>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*/
#ifndef _ASM_MICROBLAZE_ENTRY_H
#define _ASM_MICROBLAZE_ENTRY_H
#include <asm/percpu.h>
#include <asm/ptrace.h>
/*
* These are per-cpu variables required in entry.S, among other
* places
*/
#define PER_CPU(var) per_cpu__##var
# ifndef __ASSEMBLY__
DECLARE_PER_CPU(unsigned int, KSP); /* Saved kernel stack pointer */
DECLARE_PER_CPU(unsigned int, KM); /* Kernel/user mode */
DECLARE_PER_CPU(unsigned int, ENTRY_SP); /* Saved SP on kernel entry */
DECLARE_PER_CPU(unsigned int, R11_SAVE); /* Temp variable for entry */
DECLARE_PER_CPU(unsigned int, CURRENT_SAVE); /* Saved current pointer */
# endif /* __ASSEMBLY__ */
/* noMMU hasn't any space for args */
# define STATE_SAVE_ARG_SPACE (0)
#endif /* _ASM_MICROBLAZE_ENTRY_H */
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