e17235382d
In certain circumstances we need to do a bunch of jump-and-link instructions to fill the hardware return-address stack with nonzero values. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
74 lines
2 KiB
C
74 lines
2 KiB
C
/*
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* Copyright 2010 Tilera Corporation. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, version 2.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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* NON INFRINGEMENT. See the GNU General Public License for
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* more details.
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*/
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#ifndef _ASM_TILE_TRAPS_H
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#define _ASM_TILE_TRAPS_H
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#include <arch/chip.h>
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/* mm/fault.c */
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void do_page_fault(struct pt_regs *, int fault_num,
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unsigned long address, unsigned long write);
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#if CHIP_HAS_TILE_DMA() || CHIP_HAS_SN_PROC()
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void do_async_page_fault(struct pt_regs *);
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#endif
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#ifndef __tilegx__
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/*
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* We return this structure in registers to avoid having to write
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* additional save/restore code in the intvec.S caller.
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*/
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struct intvec_state {
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void *handler;
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unsigned long vecnum;
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unsigned long fault_num;
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unsigned long info;
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unsigned long retval;
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};
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struct intvec_state do_page_fault_ics(struct pt_regs *regs, int fault_num,
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unsigned long address,
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unsigned long info);
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#endif
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/* kernel/traps.c */
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void do_trap(struct pt_regs *, int fault_num, unsigned long reason);
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void kernel_double_fault(int dummy, ulong pc, ulong lr, ulong sp, ulong r52);
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/* kernel/time.c */
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void do_timer_interrupt(struct pt_regs *, int fault_num);
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/* kernel/messaging.c */
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void hv_message_intr(struct pt_regs *, int intnum);
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/* kernel/irq.c */
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void tile_dev_intr(struct pt_regs *, int intnum);
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#ifdef CONFIG_HARDWALL
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/* kernel/hardwall.c */
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void do_hardwall_trap(struct pt_regs *, int fault_num);
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#endif
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/* kernel/ptrace.c */
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void do_breakpoint(struct pt_regs *, int fault_num);
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#ifdef __tilegx__
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/* kernel/single_step.c */
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void gx_singlestep_handle(struct pt_regs *, int fault_num);
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/* kernel/intvec_64.S */
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void fill_ra_stack(void);
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#endif
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#endif /* _ASM_TILE_TRAPS_H */
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