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 CR_EIEM 15	/* External Interrupt Enable Mask */
34#define CR_CR16 16	/* CR16 Interval Timer */
35#define CR_EIRR 23	/* External Interrupt Request Register */
36
37#define mfctl(reg)	({		\
38	unsigned long cr;		\
39	__asm__ __volatile__(		\
40		"mfctl %1,%0" :		\
41		 "=r" (cr) : "i" (reg)	\
42	);				\
43	cr;				\
44})
45
46#define mtctl(gr, cr) \
47	__asm__ __volatile__("mtctl %0,%1" \
48		: /* no outputs */ \
49		: "r" (gr), "i" (cr) : "memory")
50
51#define get_eiem()	mfctl(CR_EIEM)
52#define set_eiem(val)	mtctl(val, CR_EIEM)
53
54#define mfsp(reg)	({		\
55	unsigned long cr;		\
56	__asm__ __volatile__(		\
57		"mfsp %%sr%1,%0"	\
58		: "=r" (cr) : "i"(reg)	\
59	);				\
60	cr;				\
61})
62
63#define mtsp(val, cr) \
64	{ if (__builtin_constant_p(val) && ((val) == 0)) \
65	 __asm__ __volatile__("mtsp %%r0,%0" : : "i" (cr) : "memory"); \
66	else \
67	 __asm__ __volatile__("mtsp %0,%1" \
68		: /* no outputs */ \
69		: "r" (val), "i" (cr) : "memory"); }
70
71#endif /* __PARISC_SPECIAL_INSNS_H */
72