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Blackfin arch: add an exception request/free api

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add an exception request/free api similar to the interrupt request/fre
api so people can utilize the free software based exceptions for their
own purposes

Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
This commit is contained in:
Mike Frysinger 2007-08-05 17:14:04 +08:00 • committed by Bryan Wu
parent dbcc78bebe
commit 1ffe6646ba
3 changed files with 66 additions and 22 deletions
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8
include/asm-blackfin/irq_handler.h
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@ -20,5 +20,13 @@ asmlinkage void evt_evt13(void);
asmlinkage void evt_soft_int1(void);
asmlinkage void evt_system_call(void);
asmlinkage void init_exception_buff(void);
asmlinkage void trap_c(struct pt_regs *fp);
asmlinkage void ex_replaceable(void);
extern void *ex_table[];
extern void return_from_exception(void);
extern int bfin_request_exception(unsigned int exception, void (*handler)(void));
extern int bfin_free_exception(unsigned int exception, void (*handler)(void));
#endif