6e83557c38
r0_ram pool was used for saving/restoring register content if hw exception happen. This poll was replaced by pt_pool_space with PT_SIZE size. Based on this change SAVE_STATE_ARG_SPACE was removed which caused that PTO offset is zero that's why is also removed. r0_ram space was used as scratchpad by v850. In early Microblaze Linux developing phase was this part of code blindly copied. Signed-off-by: Michal Simek <monstr@monstr.eu>
35 lines
1 KiB
C
35 lines
1 KiB
C
/*
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* Definitions used by low-level trap handlers
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*
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* Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
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* Copyright (C) 2007-2009 PetaLogix
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* Copyright (C) 2007 John Williams <john.williams@petalogix.com>
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*
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* This file is subject to the terms and conditions of the GNU General
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* Public License. See the file COPYING in the main directory of this
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* archive for more details.
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*/
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#ifndef _ASM_MICROBLAZE_ENTRY_H
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#define _ASM_MICROBLAZE_ENTRY_H
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#include <asm/percpu.h>
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#include <asm/ptrace.h>
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/*
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* These are per-cpu variables required in entry.S, among other
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* places
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*/
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#define PER_CPU(var) var
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# ifndef __ASSEMBLY__
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DECLARE_PER_CPU(unsigned int, KSP); /* Saved kernel stack pointer */
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DECLARE_PER_CPU(unsigned int, KM); /* Kernel/user mode */
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DECLARE_PER_CPU(unsigned int, ENTRY_SP); /* Saved SP on kernel entry */
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DECLARE_PER_CPU(unsigned int, R11_SAVE); /* Temp variable for entry */
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DECLARE_PER_CPU(unsigned int, CURRENT_SAVE); /* Saved current pointer */
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# endif /* __ASSEMBLY__ */
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#endif /* _ASM_MICROBLAZE_ENTRY_H */
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