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Diffstat (limited to 'arch/microblaze/include/asm/entry.h')
| -rw-r--r-- | arch/microblaze/include/asm/entry.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/microblaze/include/asm/entry.h b/arch/microblaze/include/asm/entry.h new file mode 100644 index 00000000000..e4c3aef884d --- /dev/null +++ b/arch/microblaze/include/asm/entry.h @@ -0,0 +1,37 @@ +/* + * 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 */ |