diff options
Diffstat (limited to 'arch/blackfin/kernel/traps.c')
| -rw-r--r-- | arch/blackfin/kernel/traps.c | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c index 0d2052abe41..1a8a5f171bc 100644 --- a/arch/blackfin/kernel/traps.c +++ b/arch/blackfin/kernel/traps.c @@ -51,8 +51,6 @@ void __init trap_init(void) CSYNC(); } -asmlinkage void trap_c(struct pt_regs *fp); - int kstack_depth_to_print = 48; #ifdef CONFIG_DEBUG_BFIN_HWTRACE_ON @@ -693,6 +691,42 @@ asmlinkage int sys_bfin_spinlock(int *spinlock) return ret; } +int bfin_request_exception(unsigned int exception, void (*handler)(void)) +{ + void (*curr_handler)(void); + + if (exception > 0x3F) + return -EINVAL; + + curr_handler = ex_table[exception]; + + if (curr_handler != ex_replaceable) + return -EBUSY; + + ex_table[exception] = handler; + + return 0; +} +EXPORT_SYMBOL(bfin_request_exception); + +int bfin_free_exception(unsigned int exception, void (*handler)(void)) +{ + void (*curr_handler)(void); + + if (exception > 0x3F) + return -EINVAL; + + curr_handler = ex_table[exception]; + + if (curr_handler != handler) + return -EBUSY; + + ex_table[exception] = ex_replaceable; + + return 0; +} +EXPORT_SYMBOL(bfin_free_exception); + void panic_cplb_error(int cplb_panic, struct pt_regs *fp) { switch (cplb_panic) { |