1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2/*
3 * Compiler-dependent intrinsics.
4 *
5 * Copyright (C) 2002-2003 Hewlett-Packard Co
6 *	David Mosberger-Tang <davidm@hpl.hp.com>
7 */
8#ifndef _UAPI_ASM_IA64_INTRINSICS_H
9#define _UAPI_ASM_IA64_INTRINSICS_H
10
11
12#ifndef __ASSEMBLY__
13
14#include <linux/types.h>
15/* include compiler specific intrinsics */
16#include <asm/ia64regs.h>
17#include <asm/gcc_intrin.h>
18#include <asm/cmpxchg.h>
19
20#define ia64_set_rr0_to_rr4(val0, val1, val2, val3, val4)		\
21do {									\
22	ia64_set_rr(0x0000000000000000UL, (val0));			\
23	ia64_set_rr(0x2000000000000000UL, (val1));			\
24	ia64_set_rr(0x4000000000000000UL, (val2));			\
25	ia64_set_rr(0x6000000000000000UL, (val3));			\
26	ia64_set_rr(0x8000000000000000UL, (val4));			\
27} while (0)
28
29/*
30 * Force an unresolved reference if someone tries to use
31 * ia64_fetch_and_add() with a bad value.
32 */
33extern unsigned long __bad_size_for_ia64_fetch_and_add (void);
34extern unsigned long __bad_increment_for_ia64_fetch_and_add (void);
35
36#define IA64_FETCHADD(tmp,v,n,sz,sem)						\
37({										\
38	switch (sz) {								\
39	      case 4:								\
40	        tmp = ia64_fetchadd4_##sem((unsigned int *) v, n);		\
41		break;								\
42										\
43	      case 8:								\
44	        tmp = ia64_fetchadd8_##sem((unsigned long *) v, n);		\
45		break;								\
46										\
47	      default:								\
48		__bad_size_for_ia64_fetch_and_add();				\
49	}									\
50})
51
52#define ia64_fetchadd(i,v,sem)								\
53({											\
54	__u64 _tmp;									\
55	volatile __typeof__(*(v)) *_v = (v);						\
56	/* Can't use a switch () here: gcc isn't always smart enough for that... */	\
57	if ((i) == -16)									\
58		IA64_FETCHADD(_tmp, _v, -16, sizeof(*(v)), sem);			\
59	else if ((i) == -8)								\
60		IA64_FETCHADD(_tmp, _v, -8, sizeof(*(v)), sem);				\
61	else if ((i) == -4)								\
62		IA64_FETCHADD(_tmp, _v, -4, sizeof(*(v)), sem);				\
63	else if ((i) == -1)								\
64		IA64_FETCHADD(_tmp, _v, -1, sizeof(*(v)), sem);				\
65	else if ((i) == 1)								\
66		IA64_FETCHADD(_tmp, _v, 1, sizeof(*(v)), sem);				\
67	else if ((i) == 4)								\
68		IA64_FETCHADD(_tmp, _v, 4, sizeof(*(v)), sem);				\
69	else if ((i) == 8)								\
70		IA64_FETCHADD(_tmp, _v, 8, sizeof(*(v)), sem);				\
71	else if ((i) == 16)								\
72		IA64_FETCHADD(_tmp, _v, 16, sizeof(*(v)), sem);				\
73	else										\
74		_tmp = __bad_increment_for_ia64_fetch_and_add();			\
75	(__typeof__(*(v))) (_tmp);	/* return old value */				\
76})
77
78#define ia64_fetch_and_add(i,v)	(ia64_fetchadd(i, v, rel) + (i)) /* return new value */
79
80#endif
81
82#endif /* _UAPI_ASM_IA64_INTRINSICS_H */
83