1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __PARISC_SPECIAL_INSNS_H
3#define __PARISC_SPECIAL_INSNS_H
4
5#define lpa(va)	({					\
6	unsigned long pa;				\
7	__asm__ __volatile__(				\
8		"copy %%r0,%0\n"			\
9		"8:\tlpa %%r0(%1),%0\n"			\
10		"9:\n"					\
11		ASM_EXCEPTIONTABLE_ENTRY(8b, 9b)	\
12		: "=&r" (pa)				\
13		: "r" (va)				\
14		: "memory"				\
15	);						\
16	pa;						\
17})
18
19#define lpa_user(va)	({				\
20	unsigned long pa;				\
21	__asm__ __volatile__(				\
22		"copy %%r0,%0\n"			\
23		"8:\tlpa %%r0(%%sr3,%1),%0\n"		\
24		"9:\n"					\
25		ASM_EXCEPTIONTABLE_ENTRY(8b, 9b)	\
26		: "=&r" (pa)				\
27		: "r" (va)				\
28		: "memory"				\
29	);						\
30	pa;						\
31})
32
33#define mfctl(reg)	({		\
34	unsigned long cr;		\
35	__asm__ __volatile__(		\
36		"mfctl " #reg ",%0" :	\
37		 "=r" (cr)		\
38	);				\
39	cr;				\
40})
41
42#define mtctl(gr, cr) \
43	__asm__ __volatile__("mtctl %0,%1" \
44		: /* no outputs */ \
45		: "r" (gr), "i" (cr) : "memory")
46
47/* these are here to de-mystefy the calling code, and to provide hooks */
48/* which I needed for debugging EIEM problems -PB */
49#define get_eiem() mfctl(15)
50static inline void set_eiem(unsigned long val)
51{
52	mtctl(val, 15);
53}
54
55#define mfsp(reg)	({		\
56	unsigned long cr;		\
57	__asm__ __volatile__(		\
58		"mfsp " #reg ",%0" :	\
59		 "=r" (cr)		\
60	);				\
61	cr;				\
62})
63
64#define mtsp(val, cr) \
65	{ if (__builtin_constant_p(val) && ((val) == 0)) \
66	 __asm__ __volatile__("mtsp %%r0,%0" : : "i" (cr) : "memory"); \
67	else \
68	 __asm__ __volatile__("mtsp %0,%1" \
69		: /* no outputs */ \
70		: "r" (val), "i" (cr) : "memory"); }
71
72#endif /* __PARISC_SPECIAL_INSNS_H */
73