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)
set_eiem(unsigned long val)21 static 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(gr, cr) \
36 __asm__ __volatile__("mtsp %0,%1" \
37 : /* no outputs */ \
38 : "r" (gr), "i" (cr) : "memory")
39
40 #endif /* __PARISC_SPECIAL_INSNS_H */
41