xref: /illumos-gate/usr/src/uts/sun4/sys/iommutsb.h (revision 7c478bd9)
1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate  * Copyright (c) 2000 by Sun Microsystems, Inc.
24*7c478bd9Sstevel@tonic-gate  * All rights reserved.
25*7c478bd9Sstevel@tonic-gate  */
26*7c478bd9Sstevel@tonic-gate 
27*7c478bd9Sstevel@tonic-gate #ifndef _SYS_IOMMUTSB_H
28*7c478bd9Sstevel@tonic-gate #define	_SYS_IOMMUTSB_H
29*7c478bd9Sstevel@tonic-gate 
30*7c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
31*7c478bd9Sstevel@tonic-gate 
32*7c478bd9Sstevel@tonic-gate #include <sys/types.h>
33*7c478bd9Sstevel@tonic-gate 
34*7c478bd9Sstevel@tonic-gate #ifdef __cplusplus
35*7c478bd9Sstevel@tonic-gate extern "C" {
36*7c478bd9Sstevel@tonic-gate #endif
37*7c478bd9Sstevel@tonic-gate 
38*7c478bd9Sstevel@tonic-gate #ifdef _KERNEL
39*7c478bd9Sstevel@tonic-gate 
40*7c478bd9Sstevel@tonic-gate /*
41*7c478bd9Sstevel@tonic-gate  * IOMMU TSB allocation.
42*7c478bd9Sstevel@tonic-gate  */
43*7c478bd9Sstevel@tonic-gate 
44*7c478bd9Sstevel@tonic-gate /* These four function comprise the interface for the nexus drivers. */
45*7c478bd9Sstevel@tonic-gate #define	IOMMU_TSB_COOKIE_NONE	((uint16_t)-1)
46*7c478bd9Sstevel@tonic-gate extern uint16_t iommu_tsb_alloc(uint16_t);
47*7c478bd9Sstevel@tonic-gate extern void iommu_tsb_free(uint16_t);
48*7c478bd9Sstevel@tonic-gate extern uint64_t *iommu_tsb_cookie_to_va(uint16_t);
49*7c478bd9Sstevel@tonic-gate extern uint_t iommu_tsb_cookie_to_size(uint16_t);
50*7c478bd9Sstevel@tonic-gate 
51*7c478bd9Sstevel@tonic-gate /* iommu_tsb_init() is called during startup. */
52*7c478bd9Sstevel@tonic-gate extern caddr_t iommu_tsb_init(caddr_t);
53*7c478bd9Sstevel@tonic-gate 
54*7c478bd9Sstevel@tonic-gate #endif /* _KERNEL */
55*7c478bd9Sstevel@tonic-gate 
56*7c478bd9Sstevel@tonic-gate #ifdef __cplusplus
57*7c478bd9Sstevel@tonic-gate }
58*7c478bd9Sstevel@tonic-gate #endif
59*7c478bd9Sstevel@tonic-gate 
60*7c478bd9Sstevel@tonic-gate #endif	/* _SYS_IOMMUTSB_H */
61