xref: /onnv-gate/usr/src/uts/intel/sys/spl.h (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright (c) 1992-1993,1999 by Sun Microsystems, Inc.
24*0Sstevel@tonic-gate  * All rights reserved.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #ifndef _SYS_SPL_H
28*0Sstevel@tonic-gate #define	_SYS_SPL_H
29*0Sstevel@tonic-gate 
30*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
31*0Sstevel@tonic-gate 
32*0Sstevel@tonic-gate #ifdef	__cplusplus
33*0Sstevel@tonic-gate extern "C" {
34*0Sstevel@tonic-gate #endif
35*0Sstevel@tonic-gate 
36*0Sstevel@tonic-gate /*
37*0Sstevel@tonic-gate  * Convert system interrupt priorities (0-7) into a psr for splx.
38*0Sstevel@tonic-gate  * In general, the processor priority (0-15) should be 2 times
39*0Sstevel@tonic-gate  * the system pririty.
40*0Sstevel@tonic-gate  */
41*0Sstevel@tonic-gate #define	pritospl(n)	((n) << 1)
42*0Sstevel@tonic-gate 
43*0Sstevel@tonic-gate /*
44*0Sstevel@tonic-gate  * on x86 platform these are identity functions
45*0Sstevel@tonic-gate  */
46*0Sstevel@tonic-gate #define	ipltospl(n)	(n)
47*0Sstevel@tonic-gate #define	spltoipl(n)	(n)
48*0Sstevel@tonic-gate #define	spltopri(n)	(n)
49*0Sstevel@tonic-gate 
50*0Sstevel@tonic-gate /*
51*0Sstevel@tonic-gate  * Hardware spl levels
52*0Sstevel@tonic-gate  * it should be replace by the appropriate interrupt class info.
53*0Sstevel@tonic-gate  */
54*0Sstevel@tonic-gate #define	SPL8    15
55*0Sstevel@tonic-gate #define	SPL7    13
56*0Sstevel@tonic-gate 
57*0Sstevel@tonic-gate #ifdef	__cplusplus
58*0Sstevel@tonic-gate }
59*0Sstevel@tonic-gate #endif
60*0Sstevel@tonic-gate 
61*0Sstevel@tonic-gate #endif	/* _SYS_SPL_H */
62