arch/tile/include/asm/traps.h

   1 /*
   2  * Copyright 2010 Tilera Corporation. All Rights Reserved.
   3  *
   4  *   This program is free software; you can redistribute it and/or
   5  *   modify it under the terms of the GNU General Public License
   6  *   as published by the Free Software Foundation, version 2.
   7  *
   8  *   This program is distributed in the hope that it will be useful, but
   9  *   WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  11  *   NON INFRINGEMENT.  See the GNU General Public License for
  12  *   more details.
  13  */
  14
  15 #ifndef _ASM_TILE_TRAPS_H
  16 #define _ASM_TILE_TRAPS_H
  17
  18 #include <arch/chip.h>
  19
  20 /* mm/fault.c */
  21 void do_page_fault(struct pt_regs *, int fault_num,
  22                    unsigned long address, unsigned long write);
  23 #if CHIP_HAS_TILE_DMA() || CHIP_HAS_SN_PROC()
  24 void do_async_page_fault(struct pt_regs *);
  25 #endif
  26
  27 #ifndef __tilegx__
  28 /*
  29  * We return this structure in registers to avoid having to write
  30  * additional save/restore code in the intvec.S caller.
  31  */
  32 struct intvec_state {
  33         void *handler;
  34         unsigned long vecnum;
  35         unsigned long fault_num;
  36         unsigned long info;
  37         unsigned long retval;
  38 };
  39 struct intvec_state do_page_fault_ics(struct pt_regs *regs, int fault_num,
  40                                       unsigned long address,
  41                                       unsigned long info);
  42 #endif
  43
  44 /* kernel/traps.c */
  45 void do_trap(struct pt_regs *, int fault_num, unsigned long reason);
  46 void kernel_double_fault(int dummy, ulong pc, ulong lr, ulong sp, ulong r52);
  47
  48 /* kernel/time.c */
  49 void do_timer_interrupt(struct pt_regs *, int fault_num);
  50
  51 /* kernel/messaging.c */
  52 void hv_message_intr(struct pt_regs *, int intnum);
  53
  54 /* kernel/irq.c */
  55 void tile_dev_intr(struct pt_regs *, int intnum);
  56
  57 #ifdef CONFIG_HARDWALL
  58 /* kernel/hardwall.c */
  59 void do_hardwall_trap(struct pt_regs *, int fault_num);
  60 #endif
  61
  62 /* kernel/ptrace.c */
  63 void do_breakpoint(struct pt_regs *, int fault_num);
  64
  65
  66 #ifdef __tilegx__
  67 void gx_singlestep_handle(struct pt_regs *, int fault_num);
  68 #endif
  69
  70 #endif /* _ASM_TILE_SYSCALLS_H */