Ignore:
Timestamp:
2010-11-02T18:29:01Z (13 years ago)
Author:
Jakub Jermar <jakub@…>
Branches:
lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
Children:
4f35b9ff
Parents:
76e1121f (diff), 28f4adb (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.
Message:

Merge mainline changes.

File:
1 edited

Legend:

Unmodified
Added
Removed

  • kernel/arch/mips32/include/exception.h

    r76e1121f r4687a26c  
    3737
    3838#include <typedefs.h>
    39 #include <arch/cp0.h>
    40 #include <trace.h>
     39#include <arch/istate.h>
    4140
    4241#define EXC_Int    0
    … …  
    5958#define EXC_VCED   31
    6059
    61 typedef struct istate {
    62         /*
    63          * The first seven registers are arranged so that the istate structure
    64          * can be used both for exception handlers and for the syscall handler.
    65          */
    66         uint32_t a0;    /* arg1 */
    67         uint32_t a1;    /* arg2 */
    68         uint32_t a2;    /* arg3 */
    69         uint32_t a3;    /* arg4 */
    70         uint32_t t0;    /* arg5 */
    71         uint32_t t1;    /* arg6 */
    72         uint32_t v0;    /* arg7 */
    73         uint32_t v1;
    74         uint32_t at;
    75         uint32_t t2;
    76         uint32_t t3;
    77         uint32_t t4;
    78         uint32_t t5;
    79         uint32_t t6;
    80         uint32_t t7;
    81         uint32_t s0;
    82         uint32_t s1;
    83         uint32_t s2;
    84         uint32_t s3;
    85         uint32_t s4;
    86         uint32_t s5;
    87         uint32_t s6;
    88         uint32_t s7;
    89         uint32_t t8;
    90         uint32_t t9;
    91         uint32_t kt0;
    92         uint32_t kt1;   /* We use it as thread-local pointer */
    93         uint32_t gp;
    94         uint32_t sp;
    95         uint32_t s8;
    96         uint32_t ra;
    97        
    98         uint32_t lo;
    99         uint32_t hi;
    100        
    101         uint32_t status;        /* cp0_status */
    102         uint32_t epc;           /* cp0_epc */
    103 
    104         uint32_t alignment;     /* to make sizeof(istate_t) a multiple of 8 */
    105 } istate_t;
    106 
    107 NO_TRACE static inline void istate_set_retaddr(istate_t *istate,
    108     uintptr_t retaddr)
    109 {
    110         istate->epc = retaddr;
    111 }
    112 
    113 /** Return true if exception happened while in userspace */
    114 NO_TRACE static inline int istate_from_uspace(istate_t *istate)
    115 {
    116         return istate->status & cp0_status_um_bit;
    117 }
    118 
    119 NO_TRACE static inline unative_t istate_get_pc(istate_t *istate)
    120 {
    121         return istate->epc;
    122 }
    123 
    124 NO_TRACE static inline unative_t istate_get_fp(istate_t *istate)
    125 {
    126         return istate->sp;
    127 }
    128 
    12960extern void exception(istate_t *istate);
    13061extern void tlb_refill_entry(void);
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