1 // SPDX-License-Identifier: CDDL-1.0
2 /*
3 * CDDL HEADER START
4 *
5 * The contents of this file are subject to the terms of the
6 * Common Development and Distribution License, Version 1.0 only
7 * (the "License"). You may not use this file except in compliance
8 * with the License.
9 *
10 * You can obtain a copy of the license at * usr/src/OPENSOLARIS.LICENSE
11 * or https://opensource.org/licenses/CDDL-1.0.
12 * See the License for the specific language governing permissions
13 * and limitations under the License.
14 *
15 * When distributing Covered Code, include this CDDL HEADER in each
16 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
17 * If applicable, add the following below this CDDL HEADER, with the
18 * fields enclosed by brackets "[]" replaced with your own identifying
19 * information: Portions Copyright [yyyy] [name of copyright owner]
20 *
21 * CDDL HEADER END
22 */
23 /*
24 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
25 * Use is subject to license terms.
26 */
27
28 #include <sys/nvpair.h>
29 #include <sys/kmem.h>
30 #include <sys/vmem.h>
31
32 static void *
nv_alloc_sleep_spl(nv_alloc_t * nva,size_t size)33 nv_alloc_sleep_spl(nv_alloc_t *nva, size_t size)
34 {
35 return (vmem_alloc(size, KM_SLEEP));
36 }
37
38 static void *
nv_alloc_pushpage_spl(nv_alloc_t * nva,size_t size)39 nv_alloc_pushpage_spl(nv_alloc_t *nva, size_t size)
40 {
41 return (vmem_alloc(size, KM_PUSHPAGE));
42 }
43
44 static void *
nv_alloc_nosleep_spl(nv_alloc_t * nva,size_t size)45 nv_alloc_nosleep_spl(nv_alloc_t *nva, size_t size)
46 {
47 return (kmem_alloc(size, KM_NOSLEEP));
48 }
49
50 static void
nv_free_spl(nv_alloc_t * nva,void * buf,size_t size)51 nv_free_spl(nv_alloc_t *nva, void *buf, size_t size)
52 {
53 kmem_free(buf, size);
54 }
55
56 static const nv_alloc_ops_t spl_sleep_ops_def = {
57 .nv_ao_init = NULL,
58 .nv_ao_fini = NULL,
59 .nv_ao_alloc = nv_alloc_sleep_spl,
60 .nv_ao_free = nv_free_spl,
61 .nv_ao_reset = NULL
62 };
63
64 static const nv_alloc_ops_t spl_pushpage_ops_def = {
65 .nv_ao_init = NULL,
66 .nv_ao_fini = NULL,
67 .nv_ao_alloc = nv_alloc_pushpage_spl,
68 .nv_ao_free = nv_free_spl,
69 .nv_ao_reset = NULL
70 };
71
72 static const nv_alloc_ops_t spl_nosleep_ops_def = {
73 .nv_ao_init = NULL,
74 .nv_ao_fini = NULL,
75 .nv_ao_alloc = nv_alloc_nosleep_spl,
76 .nv_ao_free = nv_free_spl,
77 .nv_ao_reset = NULL
78 };
79
80 static nv_alloc_t nv_alloc_sleep_def = {
81 &spl_sleep_ops_def,
82 NULL
83 };
84
85 static nv_alloc_t nv_alloc_pushpage_def = {
86 &spl_pushpage_ops_def,
87 NULL
88 };
89
90 static nv_alloc_t nv_alloc_nosleep_def = {
91 &spl_nosleep_ops_def,
92 NULL
93 };
94
95 nv_alloc_t *const nv_alloc_sleep = &nv_alloc_sleep_def;
96 nv_alloc_t *const nv_alloc_pushpage = &nv_alloc_pushpage_def;
97 nv_alloc_t *const nv_alloc_nosleep = &nv_alloc_nosleep_def;
98