xref: /titanic_50/usr/src/uts/sparc/asm/cpu.h (revision f38cb554a534c6df738be3f4d23327e69888e634)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef _ASM_CPU_H
28 #define	_ASM_CPU_H
29 
30 #include <sys/ccompile.h>
31 #include <sys/types.h>
32 
33 #ifdef	__cplusplus
34 extern "C" {
35 #endif
36 
37 #if !defined(__lint) && defined(__GNUC__)
38 
39 extern __GNU_INLINE void
40 prefetch_read_many(void *addr)
41 {
42 #if defined(__sparcv9)
43 	__asm__ __volatile__(
44 	    "prefetch	[%0],#n_reads\n\t"
45 	    : "=r" (addr)
46 	    : "0" (addr));
47 #else
48 #error	"port me"
49 #endif
50 }
51 
52 extern __GNU_INLINE void
53 prefetch_read_once(void *addr)
54 {
55 #if defined(__sparcv9)
56 	__asm__ __volatile__(
57 	    "prefetch	[%0],#one_read\n\t"
58 	    : "=r" (addr)
59 	    : "0" (addr));
60 #else
61 #error	"port me"
62 #endif
63 }
64 
65 extern __GNU_INLINE void
66 prefetch_write_many(void *addr)
67 {
68 #if defined(__sparcv9)
69 	__asm__ __volatile__(
70 	    "prefetch	[%0],#n_writes\n\t"
71 	    : "=r" (addr)
72 	    : "0" (addr));
73 #else
74 #error	"port me"
75 #endif
76 }
77 
78 extern __GNU_INLINE void
79 prefetch_write_once(void *addr)
80 {
81 #if defined(__sparcv9)
82 	__asm__ __volatile__(
83 	    "prefetch	[%0],#one_write\n\t"
84 	    : "=r" (addr)
85 	    : "0" (addr));
86 #else
87 #error	"port me"
88 #endif
89 }
90 
91 #endif	/* !__lint && __GNUC__ */
92 
93 #ifdef	__cplusplus
94 }
95 #endif
96 
97 #endif	/* _ASM_CPU_H */
98