1#ifndef __ASM_SH_TRAPS_32_H
2#define __ASM_SH_TRAPS_32_H
3
4#include <linux/types.h>
5#include <asm/mmu.h>
6
7#ifdef CONFIG_CPU_HAS_SR_RB
8#define lookup_exception_vector()	\
9({					\
10	unsigned long _vec;		\
11					\
12	__asm__ __volatile__ (		\
13		"stc r2_bank, %0\n\t"	\
14		: "=r" (_vec)		\
15	);				\
16					\
17	_vec;				\
18})
19#else
20#define lookup_exception_vector()	\
21({					\
22	unsigned long _vec;		\
23	__asm__ __volatile__ (		\
24		"mov r4, %0\n\t"	\
25		: "=r" (_vec)		\
26	);				\
27					\
28	_vec;				\
29})
30#endif
31
32static inline void trigger_address_error(void)
33{
34	__asm__ __volatile__ (
35		"ldc %0, sr\n\t"
36		"mov.l @%1, %0"
37		:
38		: "r" (0x10000000), "r" (0x80000001)
39	);
40}
41
42asmlinkage void do_address_error(struct pt_regs *regs,
43				 unsigned long writeaccess,
44				 unsigned long address);
45asmlinkage void do_divide_error(unsigned long r4);
46asmlinkage void do_reserved_inst(void);
47asmlinkage void do_illegal_slot_inst(void);
48asmlinkage void do_exception_error(void);
49
50#define BUILD_TRAP_HANDLER(name)					\
51asmlinkage void name##_trap_handler(unsigned long r4, unsigned long r5,	\
52				    unsigned long r6, unsigned long r7,	\
53				    struct pt_regs __regs)
54
55#define TRAP_HANDLER_DECL				\
56	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);	\
57	unsigned int vec = regs->tra;			\
58	(void)vec;
59
60#endif /* __ASM_SH_TRAPS_32_H */
61