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 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #ifndef _VM_SEG_KMEM_H
27 #define _VM_SEG_KMEM_H
28
29
30 #ifdef __cplusplus
31 extern "C" {
32 #endif
33
34 #include <sys/types.h>
35 #include <sys/vnode.h>
36 #include <sys/vmem.h>
37 #include <vm/as.h>
38 #include <vm/seg.h>
39 #include <vm/page.h>
40
41 /*
42 * VM - Kernel Segment Driver
43 */
119 uint64_t allocs_throttled;
120 uint64_t allocs_limited;
121 uint64_t alloc_bytes_failed;
122 } segkmem_lpcb_t;
123
124 extern void *segkmem_alloc_lp(vmem_t *, size_t *, size_t, int);
125 extern void segkmem_free_lp(vmem_t *, void *, size_t);
126 extern int segkmem_lpsetup();
127 extern void segkmem_heap_lp_init(void);
128
129 extern size_t segkmem_lpsize;
130 extern int segkmem_lpszc;
131 extern size_t segkmem_heaplp_quantum;
132 extern size_t segkmem_kmemlp_max;
133
134 #define SEGKMEM_USE_LARGEPAGES (segkmem_lpsize > PAGESIZE)
135
136 #define IS_KMEM_VA_LARGEPAGE(vaddr) \
137 (((vaddr) >= heap_lp_base) && ((vaddr) < heap_lp_end))
138
139 #endif /* _KERNEL */
140
141 #ifdef __cplusplus
142 }
143 #endif
144
145 #endif /* _VM_SEG_KMEM_H */
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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 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 * Copyright 2016 Joyent, Inc.
25 */
26
27 #ifndef _VM_SEG_KMEM_H
28 #define _VM_SEG_KMEM_H
29
30
31 #ifdef __cplusplus
32 extern "C" {
33 #endif
34
35 #include <sys/types.h>
36 #include <sys/vnode.h>
37 #include <sys/vmem.h>
38 #include <vm/as.h>
39 #include <vm/seg.h>
40 #include <vm/page.h>
41
42 /*
43 * VM - Kernel Segment Driver
44 */
120 uint64_t allocs_throttled;
121 uint64_t allocs_limited;
122 uint64_t alloc_bytes_failed;
123 } segkmem_lpcb_t;
124
125 extern void *segkmem_alloc_lp(vmem_t *, size_t *, size_t, int);
126 extern void segkmem_free_lp(vmem_t *, void *, size_t);
127 extern int segkmem_lpsetup();
128 extern void segkmem_heap_lp_init(void);
129
130 extern size_t segkmem_lpsize;
131 extern int segkmem_lpszc;
132 extern size_t segkmem_heaplp_quantum;
133 extern size_t segkmem_kmemlp_max;
134
135 #define SEGKMEM_USE_LARGEPAGES (segkmem_lpsize > PAGESIZE)
136
137 #define IS_KMEM_VA_LARGEPAGE(vaddr) \
138 (((vaddr) >= heap_lp_base) && ((vaddr) < heap_lp_end))
139
140 extern struct seg_ops segkmem_ops;
141
142 #endif /* _KERNEL */
143
144 #ifdef __cplusplus
145 }
146 #endif
147
148 #endif /* _VM_SEG_KMEM_H */
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