arch/blackfin/include/asm/traps.h

   1 /*
   2  *  Copyright 2004-2009 Analog Devices Inc.
   3  *                 2001 Lineo, Inc
   4  *                        Tony Kou
   5  *                 1993 Hamish Macdonald
   6  *
   7  * Licensed under the GPL-2
   8  */
   9
  10 #ifndef _BFIN_TRAPS_H
  11 #define _BFIN_TRAPS_H
  12
  13 #define VEC_SYS         (0)
  14 #define VEC_EXCPT01     (1)
  15 #define VEC_EXCPT02     (2)
  16 #define VEC_EXCPT03     (3)
  17 #define VEC_EXCPT04     (4)
  18 #define VEC_EXCPT05     (5)
  19 #define VEC_EXCPT06     (6)
  20 #define VEC_EXCPT07     (7)
  21 #define VEC_EXCPT08     (8)
  22 #define VEC_EXCPT09     (9)
  23 #define VEC_EXCPT10     (10)
  24 #define VEC_EXCPT11     (11)
  25 #define VEC_EXCPT12     (12)
  26 #define VEC_EXCPT13     (13)
  27 #define VEC_EXCPT14     (14)
  28 #define VEC_EXCPT15     (15)
  29 #define VEC_STEP        (16)
  30 #define VEC_OVFLOW      (17)
  31 #define VEC_UNDEF_I     (33)
  32 #define VEC_ILGAL_I     (34)
  33 #define VEC_CPLB_VL     (35)
  34 #define VEC_MISALI_D    (36)
  35 #define VEC_UNCOV       (37)
  36 #define VEC_CPLB_M      (38)
  37 #define VEC_CPLB_MHIT   (39)
  38 #define VEC_WATCH       (40)
  39 #define VEC_ISTRU_VL    (41)    /*ADSP-BF535 only (MH) */
  40 #define VEC_MISALI_I    (42)
  41 #define VEC_CPLB_I_VL   (43)
  42 #define VEC_CPLB_I_M    (44)
  43 #define VEC_CPLB_I_MHIT (45)
  44 #define VEC_ILL_RES     (46)    /* including unvalid supervisor mode insn */
  45 /* The hardware reserves (63) for future use - we use it to tell our
  46  * normal exception handling code we have a hardware error
  47  */
  48 #define VEC_HWERR       (63)
  49
  50 #ifndef __ASSEMBLY__
  51
  52 #define HWC_x2(level) \
  53         "System MMR Error\n" \
  54         level " - An error occurred due to an invalid access to an System MMR location\n" \
  55         level "   Possible reason: a 32-bit register is accessed with a 16-bit instruction\n" \
  56         level "   or a 16-bit register is accessed with a 32-bit instruction.\n"
  57 #define HWC_x3(level) \
  58         "External Memory Addressing Error\n"
  59 #define EXC_0x04(level) \
  60         "Unimplmented exception occurred\n" \
  61         level " - Maybe you forgot to install a custom exception handler?\n"
  62 #define HWC_x12(level) \
  63         "Performance Monitor Overflow\n"
  64 #define HWC_x18(level) \
  65         "RAISE 5 instruction\n" \
  66         level "    Software issued a RAISE 5 instruction to invoke the Hardware\n"
  67 #define HWC_default(level) \
  68          "Reserved\n"
  69 #define EXC_0x03(level) \
  70         "Application stack overflow\n" \
  71         level " - Please increase the stack size of the application using elf2flt -s option,\n" \
  72         level "   and/or reduce the stack use of the application.\n"
  73 #define EXC_0x10(level) \
  74         "Single step\n" \
  75         level " - When the processor is in single step mode, every instruction\n" \
  76         level "   generates an exception. Primarily used for debugging.\n"
  77 #define EXC_0x11(level) \
  78         "Exception caused by a trace buffer full condition\n" \
  79         level " - The processor takes this exception when the trace\n" \
  80         level "   buffer overflows (only when enabled by the Trace Unit Control register).\n"
  81 #define EXC_0x21(level) \
  82         "Undefined instruction\n" \
  83         level " - May be used to emulate instructions that are not defined for\n" \
  84         level "   a particular processor implementation.\n"
  85 #define EXC_0x22(level) \
  86         "Illegal instruction combination\n" \
  87         level " - See section for multi-issue rules in the Blackfin\n" \
  88         level "   Processor Instruction Set Reference.\n"
  89 #define EXC_0x23(level) \
  90         "Data access CPLB protection violation\n" \
  91         level " - Attempted read or write to Supervisor resource,\n" \
  92         level "   or illegal data memory access. \n"
  93 #define EXC_0x24(level) \
  94         "Data access misaligned address violation\n" \
  95         level " - Attempted misaligned data memory or data cache access.\n"
  96 #define EXC_0x25(level) \
  97         "Unrecoverable event\n" \
  98         level " - For example, an exception generated while processing a previous exception.\n"
  99 #define EXC_0x26(level) \
 100         "Data access CPLB miss\n" \
 101         level " - Used by the MMU to signal a CPLB miss on a data access.\n"
 102 #define EXC_0x27(level) \
 103         "Data access multiple CPLB hits\n" \
 104         level " - More than one CPLB entry matches data fetch address.\n"
 105 #define EXC_0x28(level) \
 106         "Program Sequencer Exception caused by an emulation watchpoint match\n" \
 107         level " - There is a watchpoint match, and one of the EMUSW\n" \
 108         level "   bits in the Watchpoint Instruction Address Control register (WPIACTL) is set.\n"
 109 #define EXC_0x2A(level) \
 110         "Instruction fetch misaligned address violation\n" \
 111         level " - Attempted misaligned instruction cache fetch.\n"
 112 #define EXC_0x2B(level) \
 113         "CPLB protection violation\n" \
 114         level " - Illegal instruction fetch access (memory protection violation).\n"
 115 #define EXC_0x2C(level) \
 116         "Instruction fetch CPLB miss\n" \
 117         level " - CPLB miss on an instruction fetch.\n"
 118 #define EXC_0x2D(level) \
 119         "Instruction fetch multiple CPLB hits\n" \
 120         level " - More than one CPLB entry matches instruction fetch address.\n"
 121 #define EXC_0x2E(level) \
 122         "Illegal use of supervisor resource\n" \
 123         level " - Attempted to use a Supervisor register or instruction from User mode.\n" \
 124         level "   Supervisor resources are registers and instructions that are reserved\n" \
 125         level "   for Supervisor use: Supervisor only registers, all MMRs, and Supervisor\n" \
 126         level "   only instructions.\n"
 127
 128 extern void double_fault_c(struct pt_regs *fp);
 129
 130 #endif                          /* __ASSEMBLY__ */
 131 #endif                          /* _BFIN_TRAPS_H */