1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef __PARISC_SPECIAL_INSNS_H
3*4882a593Smuzhiyun #define __PARISC_SPECIAL_INSNS_H
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun #define lpa(va) ({ \
6*4882a593Smuzhiyun unsigned long pa; \
7*4882a593Smuzhiyun __asm__ __volatile__( \
8*4882a593Smuzhiyun "copy %%r0,%0\n" \
9*4882a593Smuzhiyun "8:\tlpa %%r0(%1),%0\n" \
10*4882a593Smuzhiyun "9:\n" \
11*4882a593Smuzhiyun ASM_EXCEPTIONTABLE_ENTRY(8b, 9b) \
12*4882a593Smuzhiyun : "=&r" (pa) \
13*4882a593Smuzhiyun : "r" (va) \
14*4882a593Smuzhiyun : "memory" \
15*4882a593Smuzhiyun ); \
16*4882a593Smuzhiyun pa; \
17*4882a593Smuzhiyun })
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun #define lpa_user(va) ({ \
20*4882a593Smuzhiyun unsigned long pa; \
21*4882a593Smuzhiyun __asm__ __volatile__( \
22*4882a593Smuzhiyun "copy %%r0,%0\n" \
23*4882a593Smuzhiyun "8:\tlpa %%r0(%%sr3,%1),%0\n" \
24*4882a593Smuzhiyun "9:\n" \
25*4882a593Smuzhiyun ASM_EXCEPTIONTABLE_ENTRY(8b, 9b) \
26*4882a593Smuzhiyun : "=&r" (pa) \
27*4882a593Smuzhiyun : "r" (va) \
28*4882a593Smuzhiyun : "memory" \
29*4882a593Smuzhiyun ); \
30*4882a593Smuzhiyun pa; \
31*4882a593Smuzhiyun })
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun #define mfctl(reg) ({ \
34*4882a593Smuzhiyun unsigned long cr; \
35*4882a593Smuzhiyun __asm__ __volatile__( \
36*4882a593Smuzhiyun "mfctl " #reg ",%0" : \
37*4882a593Smuzhiyun "=r" (cr) \
38*4882a593Smuzhiyun ); \
39*4882a593Smuzhiyun cr; \
40*4882a593Smuzhiyun })
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun #define mtctl(gr, cr) \
43*4882a593Smuzhiyun __asm__ __volatile__("mtctl %0,%1" \
44*4882a593Smuzhiyun : /* no outputs */ \
45*4882a593Smuzhiyun : "r" (gr), "i" (cr) : "memory")
46*4882a593Smuzhiyun
47*4882a593Smuzhiyun /* these are here to de-mystefy the calling code, and to provide hooks */
48*4882a593Smuzhiyun /* which I needed for debugging EIEM problems -PB */
49*4882a593Smuzhiyun #define get_eiem() mfctl(15)
set_eiem(unsigned long val)50*4882a593Smuzhiyun static inline void set_eiem(unsigned long val)
51*4882a593Smuzhiyun {
52*4882a593Smuzhiyun mtctl(val, 15);
53*4882a593Smuzhiyun }
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun #define mfsp(reg) ({ \
56*4882a593Smuzhiyun unsigned long cr; \
57*4882a593Smuzhiyun __asm__ __volatile__( \
58*4882a593Smuzhiyun "mfsp " #reg ",%0" : \
59*4882a593Smuzhiyun "=r" (cr) \
60*4882a593Smuzhiyun ); \
61*4882a593Smuzhiyun cr; \
62*4882a593Smuzhiyun })
63*4882a593Smuzhiyun
64*4882a593Smuzhiyun #define mtsp(val, cr) \
65*4882a593Smuzhiyun { if (__builtin_constant_p(val) && ((val) == 0)) \
66*4882a593Smuzhiyun __asm__ __volatile__("mtsp %%r0,%0" : : "i" (cr) : "memory"); \
67*4882a593Smuzhiyun else \
68*4882a593Smuzhiyun __asm__ __volatile__("mtsp %0,%1" \
69*4882a593Smuzhiyun : /* no outputs */ \
70*4882a593Smuzhiyun : "r" (val), "i" (cr) : "memory"); }
71*4882a593Smuzhiyun
72*4882a593Smuzhiyun #endif /* __PARISC_SPECIAL_INSNS_H */
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