FreeBSD/Linux Kernel Cross Reference
sys/sun4v/include/trap.h

     /*-
      * Copyright (c) 2001 Jake Burkholder.
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD$
     */
    
    #ifndef _MACHINE_TRAP_H_
    #define _MACHINE_TRAP_H_
    
    #ifdef _KERNEL
    
    #define T_RESERVED                      0
    #define T_INSTRUCTION_EXCEPTION         1
    #define T_INSTRUCTION_ERROR             2
    #define T_INSTRUCTION_PROTECTION        3
    #define T_ILLTRAP_INSTRUCTION           4
    #define T_ILLEGAL_INSTRUCTION           5
    #define T_PRIVILEGED_OPCODE             6
    #define T_FP_DISABLED                   7
    #define T_FP_EXCEPTION_IEEE_754         8
    #define T_FP_EXCEPTION_OTHER            9
    #define T_TAG_OVERFLOW                  10
    #define T_DIVISION_BY_ZERO              11
    #define T_DATA_EXCEPTION                12
    #define T_DATA_ERROR                    13
    #define T_DATA_PROTECTION               14
    #define T_MEM_ADDRESS_NOT_ALIGNED       15
    #define T_ALIGNMENT                     15
    #define T_PRIVILEGED_ACTION             16
    #define T_ASYNC_DATA_ERROR              17
    #define T_TRAP_INSTRUCTION_16           18
    #define T_TRAP_INSTRUCTION_17           19
    #define T_TRAP_INSTRUCTION_18           20
    #define T_TRAP_INSTRUCTION_19           21
    #define T_TRAP_INSTRUCTION_20           22
    #define T_TRAP_INSTRUCTION_21           23
    #define T_TRAP_INSTRUCTION_22           24
    #define T_TRAP_INSTRUCTION_23           25
    #define T_TRAP_INSTRUCTION_24           26
    #define T_TRAP_INSTRUCTION_25           27
    #define T_TRAP_INSTRUCTION_26           28
    #define T_TRAP_INSTRUCTION_27           29
    #define T_TRAP_INSTRUCTION_28           30
    #define T_TRAP_INSTRUCTION_29           31
    #define T_TRAP_INSTRUCTION_30           32
    #define T_TRAP_INSTRUCTION_31           33
    #define T_INSTRUCTION_MISS              34
    #define T_DATA_MISS                     35
    
    #define T_INTERRUPT                     36
    #define T_PA_WATCHPOINT                 37
    #define T_VA_WATCHPOINT                 38
    #define T_CORRECTED_ECC_ERROR           39
    #define T_SPILL                         40
    #define T_FILL                          41
    #define T_FILL_RET                      42
    #define T_BREAKPOINT                    43
    #define T_CLEAN_WINDOW                  44
    #define T_RANGE_CHECK                   45
    #define T_FIX_ALIGNMENT                 46
    #define T_INTEGER_OVERFLOW              47
    #define T_SYSCALL                       48
    #define T_RSTRWP_PHYS                   49
    #define T_RSTRWP_VIRT                   50
    #define T_KSTACK_FAULT                  51
    #define T_RESUMABLE_ERROR               52
    #define T_NONRESUMABLE_ERROR            53
    
    #define T_MAX                           (T_NONRESUMABLE_ERROR + 1)
    
    #define T_KERNEL                        64
    
    #define TRAP_MASK                       ((1<<6)-1)
    #define TRAP_CTX_SHIFT                  8
    /*
     * These defines are used by the TL1 tlb miss handlers to calculate
     * the pc to jump to in the case the entry was not found in the TSB.
    */
   
   #define WTRAP_ALIGN     0x7f    /* window handlers are 128 byte align */
   #define WTRAP_FAULTOFF  124     /* last instruction in handler */
    
   /* use the following defines to determine if trap was a fill or a spill */
   #define WTRAP_TTMASK    0x180
   #define WTRAP_TYPE      0x080
   
   #define TT_INSTRUCTION_EXCEPTION        0x8
   #define TT_INSTRUCTION_MISS             0x9
   #define TT_ILLEGAL_INSTRUCTION          0x10
   #define TT_PRIVILEGED_OPCODE            0x11
   #define TT_FP_EXCEPTION_IEEE_754        0x21
   #define TT_FP_EXCEPTION_OTHER           0x22
   #define TT_TAG_OVERFLOW                 0x23
   #define TT_DIVISION_BY_ZERO             0x28
   #define TT_DATA_EXCEPTION               0x30
   #define TT_DATA_MISS                    0x31
   #define TT_ALIGNNMENT                   0x34
   #define TT_DATA_PROTECTION              0x6c
   #define TT_ALIGNMENT                    0x6c
   #define TT_BREAKPOINT                   0x76
   
   #define PTL1_BAD_DEBUG          0
   #define PTL1_BAD_WTRAP          1
   #define PTL1_BAD_KMISS          2
   #define PTL1_BAD_KPROT_FAULT    3
   #define PTL1_BAD_ISM            4
   #define PTL1_BAD_MMUTRAP        5
   #define PTL1_BAD_TRAP           6
   #define PTL1_BAD_NOT_WTRAP      7
   #if 0
   #define PTL1_BAD_FPTRAP         7
   #endif
   #define PTL1_BAD_INTR_REQ       8
   #define PTL1_BAD_TRACE_PTR      9
   
   #define PTL1_BAD_STACK          10
   #define PTL1_BAD_DTRACE_FLAGS   11
   #define PTL1_BAD_CTX_STEAL      12
   #define PTL1_BAD_ECC            13
   #define PTL1_BAD_HCALL          14
   #define PTL1_BAD_GL             15
   
   
   #ifndef LOCORE
   extern const char *const trap_msg[];
   extern void set_mmfsa_traptable(void *, uint64_t);
   extern void trap_init(void);
   #endif
   
   #endif
   
   #endif /* !_MACHINE_TRAP_H_ */

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