/*
* arch/v850/kernel/entry.S -- Low-level system-call handling, trap handlers,
* and context-switching
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* 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.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/sys.h>
#include <asm/entry.h>
#include <asm/current.h>
#include <asm/thread_info.h>
#include <asm/clinkage.h>
#include <asm/processor.h>
#include <asm/irq.h>
#include <asm/errno.h>
#include <asm/asm-offsets.h>
/* Make a slightly more convenient alias for C_SYMBOL_NAME. */
#define CSYM C_SYMBOL_NAME
/* The offset of the struct pt_regs in a state-save-frame on the stack. */
#define PTO STATE_SAVE_PT_OFFSET
/* Save argument registers to the state-save-frame pointed to by EP. */
#define SAVE_ARG_REGS \
sst.w r6, PTO+PT_GPR(6)[ep]; \
sst.w r7, PTO+PT_GPR(7)[ep]; \
sst.w r8, PTO+PT_GPR(8)[ep]; \
sst.w r9, PTO+PT_GPR(9)[ep]
/* Restore argument registers from the state-save-frame pointed to by EP. */
#define RESTORE_ARG_REGS \
sld.w PTO+PT_GPR(6)[ep], r6; \
sld.w PTO+PT_GPR(7)[ep], r7; \
sld.w PTO+PT_GPR(8)[ep], r8; \
sld.w PTO+PT_GPR(9)[ep], r9
/* Save value return registers to the state-save-frame pointed to by EP. */
#define SAVE_RVAL_REGS \
sst.w r10, PTO+PT_GPR(10)[ep]; \
sst.w r11, PTO+PT_GPR(11)[ep]
/* Restore value return registers from the state-save-frame pointed to by EP. */
#define RESTORE_RVAL_REGS \
sld.w PTO+PT_GPR(10)[ep], r10; \
sld.w PTO+PT_GPR(11)[ep], r11
#define SAVE_CALL_CLOBBERED_REGS_BEFORE_ARGS \
sst.w r1, PTO+PT_GPR(1)[ep]; \
sst.w r5, PTO+PT_GPR(5)[ep]
#define SAVE_CALL_CLOBBERED_REGS_AFTER_RVAL \
sst.w r12, PTO+PT_GPR(12)[ep]; \
sst.w r13, PTO+PT_GPR(13)[ep]; \
sst.w r14, PTO+PT_GPR(14)[ep]; \
sst.w r15, PTO+PT_GPR(15)[ep]; \
sst.w r16, PTO+PT_GPR(16)[ep]; \
sst.w r17, PTO+PT_GPR(17)[ep]; \
sst.w r18, PTO+PT_GPR(18)[ep]; \
sst.w r19, PTO+PT_GPR(19)[ep]
#define RESTORE_CALL_CLOBBERED_REGS_BEFORE_ARGS \
sld.w PTO+PT_GPR(1)[ep], r1; \
sld.w PTO+PT_GPR(5)[ep], r5
#define RESTORE_CALL_CLOBBERED_
