1/*
2 * Compiler-dependent intrinsics.
3 *
4 * Copyright (C) 2002-2003 Hewlett-Packard Co
5 *	David Mosberger-Tang <davidm@hpl.hp.com>
6 */
7#ifndef _UAPI_ASM_IA64_INTRINSICS_H
8#define _UAPI_ASM_IA64_INTRINSICS_H
9
10
11#ifndef __ASSEMBLY__
12
13#include <linux/types.h>
14/* include compiler specific intrinsics */
15#include <asm/ia64regs.h>
16#ifdef __INTEL_COMPILER
17# include <asm/intel_intrin.h>
18#else
19# include <asm/gcc_intrin.h>
20#endif
21#include <asm/cmpxchg.h>
22
23#define ia64_native_get_psr_i()	(ia64_native_getreg(_IA64_REG_PSR) & IA64_PSR_I)
24
25#define ia64_native_set_rr0_to_rr4(val0, val1, val2, val3, val4)	\
26do {									\
27	ia64_native_set_rr(0x0000000000000000UL, (val0));		\
28	ia64_native_set_rr(0x2000000000000000UL, (val1));		\
29	ia64_native_set_rr(0x4000000000000000UL, (val2));		\
30	ia64_native_set_rr(0x6000000000000000UL, (val3));		\
31	ia64_native_set_rr(0x8000000000000000UL, (val4));		\
32} while (0)
33
34/*
35 * Force an unresolved reference if someone tries to use
36 * ia64_fetch_and_add() with a bad value.
37 */
38extern unsigned long __bad_size_for_ia64_fetch_and_add (void);
39extern unsigned long __bad_increment_for_ia64_fetch_and_add (void);
40
41#define IA64_FETCHADD(tmp,v,n,sz,sem)						\
42({										\
43	switch (sz) {								\
44	      case 4:								\
45	        tmp = ia64_fetchadd4_##sem((unsigned int *) v, n);		\
46		break;								\
47										\
48	      case 8:								\
49	        tmp = ia64_fetchadd8_##sem((unsigned long *) v, n);		\
50		break;								\
51										\
52	      default:								\
53		__bad_size_for_ia64_fetch_and_add();				\
54	}									\
55})
56
57#define ia64_fetchadd(i,v,sem)								\
58({											\
59	__u64 _tmp;									\
60	volatile __typeof__(*(v)) *_v = (v);						\
61	/* Can't use a switch () here: gcc isn't always smart enough for that... */	\
62	if ((i) == -16)									\
63		IA64_FETCHADD(_tmp, _v, -16, sizeof(*(v)), sem);			\
64	else if ((i) == -8)								\
65		IA64_FETCHADD(_tmp, _v, -8, sizeof(*(v)), sem);				\
66	else if ((i) == -4)								\
67		IA64_FETCHADD(_tmp, _v, -4, sizeof(*(v)), sem);				\
68	else if ((i) == -1)								\
69		IA64_FETCHADD(_tmp, _v, -1, sizeof(*(v)), sem);				\
70	else if ((i) == 1)								\
71		IA64_FETCHADD(_tmp, _v, 1, sizeof(*(v)), sem);				\
72	else if ((i) == 4)								\
73		IA64_FETCHADD(_tmp, _v, 4, sizeof(*(v)), sem);				\
74	else if ((i) == 8)								\
75		IA64_FETCHADD(_tmp, _v, 8, sizeof(*(v)), sem);				\
76	else if ((i) == 16)								\
77		IA64_FETCHADD(_tmp, _v, 16, sizeof(*(v)), sem);				\
78	else										\
79		_tmp = __bad_increment_for_ia64_fetch_and_add();			\
80	(__typeof__(*(v))) (_tmp);	/* return old value */				\
81})
82
83#define ia64_fetch_and_add(i,v)	(ia64_fetchadd(i, v, rel) + (i)) /* return new value */
84
85#endif
86
87
88#ifndef __ASSEMBLY__
89
90#define IA64_INTRINSIC_API(name)	ia64_native_ ## name
91#define IA64_INTRINSIC_MACRO(name)	ia64_native_ ## name
92
93
94/************************************************/
95/* Instructions paravirtualized for correctness */
96/************************************************/
97/* fc, thash, get_cpuid, get_pmd, get_eflags, set_eflags */
98/* Note that "ttag" and "cover" are also privilege-sensitive; "ttag"
99 * is not currently used (though it may be in a long-format VHPT system!)
100 */
101#define ia64_fc				IA64_INTRINSIC_API(fc)
102#define ia64_thash			IA64_INTRINSIC_API(thash)
103#define ia64_get_cpuid			IA64_INTRINSIC_API(get_cpuid)
104#define ia64_get_pmd			IA64_INTRINSIC_API(get_pmd)
105
106
107/************************************************/
108/* Instructions paravirtualized for performance */
109/************************************************/
110#define ia64_ssm			IA64_INTRINSIC_MACRO(ssm)
111#define ia64_rsm			IA64_INTRINSIC_MACRO(rsm)
112#define ia64_getreg			IA64_INTRINSIC_MACRO(getreg)
113#define ia64_setreg			IA64_INTRINSIC_API(setreg)
114#define ia64_set_rr			IA64_INTRINSIC_API(set_rr)
115#define ia64_get_rr			IA64_INTRINSIC_API(get_rr)
116#define ia64_ptcga			IA64_INTRINSIC_API(ptcga)
117#define ia64_get_psr_i			IA64_INTRINSIC_API(get_psr_i)
118#define ia64_intrin_local_irq_restore	\
119	IA64_INTRINSIC_API(intrin_local_irq_restore)
120#define ia64_set_rr0_to_rr4		IA64_INTRINSIC_API(set_rr0_to_rr4)
121
122#endif /* !__ASSEMBLY__ */
123
124#endif /* _UAPI_ASM_IA64_INTRINSICS_H */
125