1#ifndef __PARISC_SPECIAL_INSNS_H
2#define __PARISC_SPECIAL_INSNS_H
3
4#define mfctl(reg)	({		\
5	unsigned long cr;		\
6	__asm__ __volatile__(		\
7		"mfctl " #reg ",%0" :	\
8		 "=r" (cr)		\
9	);				\
10	cr;				\
11})
12
13#define mtctl(gr, cr) \
14	__asm__ __volatile__("mtctl %0,%1" \
15		: /* no outputs */ \
16		: "r" (gr), "i" (cr) : "memory")
17
18/* these are here to de-mystefy the calling code, and to provide hooks */
19/* which I needed for debugging EIEM problems -PB */
20#define get_eiem() mfctl(15)
21static inline void set_eiem(unsigned long val)
22{
23	mtctl(val, 15);
24}
25
26#define mfsp(reg)	({		\
27	unsigned long cr;		\
28	__asm__ __volatile__(		\
29		"mfsp " #reg ",%0" :	\
30		 "=r" (cr)		\
31	);				\
32	cr;				\
33})
34
35#define mtsp(val, cr) \
36	{ if (__builtin_constant_p(val) && ((val) == 0)) \
37	 __asm__ __volatile__("mtsp %%r0,%0" : : "i" (cr) : "memory"); \
38	else \
39	 __asm__ __volatile__("mtsp %0,%1" \
40		: /* no outputs */ \
41		: "r" (val), "i" (cr) : "memory"); }
42
43#endif /* __PARISC_SPECIAL_INSNS_H */
44