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 #ifndef __ASSEMBLY__ 19 #include <arch/chip.h> 20 21 /* mm/fault.c */ 22 void do_page_fault(struct pt_regs *, int fault_num, 23 unsigned long address, unsigned long write); 24 #if CHIP_HAS_TILE_DMA() 25 void do_async_page_fault(struct pt_regs *); 26 #endif 27 28 #ifndef __tilegx__ 29 /* 30 * We return this structure in registers to avoid having to write 31 * additional save/restore code in the intvec.S caller. 32 */ 33 struct intvec_state { 34 void *handler; 35 unsigned long vecnum; 36 unsigned long fault_num; 37 unsigned long info; 38 unsigned long retval; 39 }; 40 struct intvec_state do_page_fault_ics(struct pt_regs *regs, int fault_num, 41 unsigned long address, 42 unsigned long info); 43 #endif 44 45 /* kernel/traps.c */ 46 void do_trap(struct pt_regs *, int fault_num, unsigned long reason); 47 void kernel_double_fault(int dummy, ulong pc, ulong lr, ulong sp, ulong r52); 48 49 /* kernel/time.c */ 50 void do_timer_interrupt(struct pt_regs *, int fault_num); 51 52 /* kernel/messaging.c */ 53 void hv_message_intr(struct pt_regs *, int intnum); 54 55 /* kernel/irq.c */ 56 void tile_dev_intr(struct pt_regs *, int intnum); 57 58 #ifdef CONFIG_HARDWALL 59 /* kernel/hardwall.c */ 60 void do_hardwall_trap(struct pt_regs *, int fault_num); 61 #endif 62 63 /* kernel/ptrace.c */ 64 void do_breakpoint(struct pt_regs *, int fault_num); 65 66 67 #ifdef __tilegx__ 68 /* kernel/single_step.c */ 69 void gx_singlestep_handle(struct pt_regs *, int fault_num); 70 71 /* kernel/intvec_64.S */ 72 void fill_ra_stack(void); 73 74 /* Handle unalign data fixup. */ 75 extern void do_unaligned(struct pt_regs *regs, int vecnum); 76 #endif 77 78 #endif /* __ASSEMBLY__ */ 79 80 #ifdef __tilegx__ 81 /* 128 byte JIT per unalign fixup. */ 82 #define UNALIGN_JIT_SHIFT 7 83 #endif 84 85 #endif /* _ASM_TILE_TRAPS_H */ 86