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				"or %%r0,%%r0,%%r0")	\
13		: "=&r" (pa)				\
14		: "r" (va)				\
15		: "memory"				\
16	);						\
17	pa;						\
18})
19
20#define lpa_user(va)	({				\
21	unsigned long pa;				\
22	__asm__ __volatile__(				\
23		"copy %%r0,%0\n"			\
24		"8:\tlpa %%r0(%%sr3,%1),%0\n"		\
25		"9:\n"					\
26		ASM_EXCEPTIONTABLE_ENTRY(8b, 9b,	\
27				"or %%r0,%%r0,%%r0")	\
28		: "=&r" (pa)				\
29		: "r" (va)				\
30		: "memory"				\
31	);						\
32	pa;						\
33})
34
35#define CR_EIEM 15	/* External Interrupt Enable Mask */
36#define CR_CR16 16	/* CR16 Interval Timer */
37#define CR_EIRR 23	/* External Interrupt Request Register */
38
39#define mfctl(reg)	({		\
40	unsigned long cr;		\
41	__asm__ __volatile__(		\
42		"mfctl %1,%0" :		\
43		 "=r" (cr) : "i" (reg)	\
44	);				\
45	cr;				\
46})
47
48#define mtctl(gr, cr) \
49	__asm__ __volatile__("mtctl %0,%1" \
50		: /* no outputs */ \
51		: "r" (gr), "i" (cr) : "memory")
52
53#define get_eiem()	mfctl(CR_EIEM)
54#define set_eiem(val)	mtctl(val, CR_EIEM)
55
56#define mfsp(reg)	({		\
57	unsigned long cr;		\
58	__asm__ __volatile__(		\
59		"mfsp %%sr%1,%0"	\
60		: "=r" (cr) : "i"(reg)	\
61	);				\
62	cr;				\
63})
64
65#define mtsp(val, cr) \
66	{ if (__builtin_constant_p(val) && ((val) == 0)) \
67	 __asm__ __volatile__("mtsp %%r0,%0" : : "i" (cr) : "memory"); \
68	else \
69	 __asm__ __volatile__("mtsp %0,%1" \
70		: /* no outputs */ \
71		: "r" (val), "i" (cr) : "memory"); }
72
73#endif /* __PARISC_SPECIAL_INSNS_H */
74