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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
527dcdcc DH |
2 | #ifndef __PARISC_SPECIAL_INSNS_H |
3 | #define __PARISC_SPECIAL_INSNS_H | |
4 | ||
116d7533 JDA |
5 | #define lpa(va) ({ \ |
6 | unsigned long pa; \ | |
7 | __asm__ __volatile__( \ | |
8 | "copy %%r0,%0\n\t" \ | |
9 | "lpa %%r0(%1),%0" \ | |
10 | : "=r" (pa) \ | |
11 | : "r" (va) \ | |
12 | : "memory" \ | |
13 | ); \ | |
14 | pa; \ | |
15 | }) | |
16 | ||
17 | #define lpa_user(va) ({ \ | |
18 | unsigned long pa; \ | |
19 | __asm__ __volatile__( \ | |
20 | "copy %%r0,%0\n\t" \ | |
21 | "lpa %%r0(%%sr3,%1),%0" \ | |
22 | : "=r" (pa) \ | |
23 | : "r" (va) \ | |
24 | : "memory" \ | |
25 | ); \ | |
26 | pa; \ | |
27 | }) | |
28 | ||
527dcdcc DH |
29 | #define mfctl(reg) ({ \ |
30 | unsigned long cr; \ | |
31 | __asm__ __volatile__( \ | |
32 | "mfctl " #reg ",%0" : \ | |
33 | "=r" (cr) \ | |
34 | ); \ | |
35 | cr; \ | |
36 | }) | |
37 | ||
38 | #define mtctl(gr, cr) \ | |
39 | __asm__ __volatile__("mtctl %0,%1" \ | |
40 | : /* no outputs */ \ | |
41 | : "r" (gr), "i" (cr) : "memory") | |
42 | ||
43 | /* these are here to de-mystefy the calling code, and to provide hooks */ | |
44 | /* which I needed for debugging EIEM problems -PB */ | |
45 | #define get_eiem() mfctl(15) | |
46 | static inline void set_eiem(unsigned long val) | |
47 | { | |
48 | mtctl(val, 15); | |
49 | } | |
50 | ||
51 | #define mfsp(reg) ({ \ | |
52 | unsigned long cr; \ | |
53 | __asm__ __volatile__( \ | |
54 | "mfsp " #reg ",%0" : \ | |
55 | "=r" (cr) \ | |
56 | ); \ | |
57 | cr; \ | |
58 | }) | |
59 | ||
92b59929 HD |
60 | #define mtsp(val, cr) \ |
61 | { if (__builtin_constant_p(val) && ((val) == 0)) \ | |
62 | __asm__ __volatile__("mtsp %%r0,%0" : : "i" (cr) : "memory"); \ | |
63 | else \ | |
64 | __asm__ __volatile__("mtsp %0,%1" \ | |
527dcdcc | 65 | : /* no outputs */ \ |
92b59929 | 66 | : "r" (val), "i" (cr) : "memory"); } |
527dcdcc DH |
67 | |
68 | #endif /* __PARISC_SPECIAL_INSNS_H */ |