| 1 | /*- |
| 2 | * SPDX-License-Identifier: BSD-2-Clause |
| 3 | * |
| 4 | * Copyright (c) 2017, Jeffrey Roberson <jeff@freebsd.org> |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice unmodified, this list of conditions, and the following |
| 12 | * disclaimer. |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer in the |
| 15 | * documentation and/or other materials provided with the distribution. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | #ifndef __VM_DOMAINSET_H__ |
| 29 | #define __VM_DOMAINSET_H__ |
| 30 | |
| 31 | struct pctrie_iter; |
| 32 | |
| 33 | struct vm_domainset_iter { |
| 34 | struct domainset *di_domain; |
| 35 | unsigned int *di_iter; |
| 36 | /* Initialized from 'di_domain', initial value after reset. */ |
| 37 | domainset_t di_valid_mask; |
| 38 | /* Domains to browse in the current phase. */ |
| 39 | domainset_t di_remain_mask; |
| 40 | /* Domains skipped in phase 1 because under 'v_free_min'. */ |
| 41 | domainset_t di_min_mask; |
| 42 | vm_pindex_t di_offset; |
| 43 | int di_flags; |
| 44 | uint16_t di_policy; |
| 45 | bool di_minskip; |
| 46 | }; |
| 47 | |
| 48 | int vm_domainset_iter_page(struct vm_domainset_iter *, struct vm_object *, |
| 49 | int *, struct pctrie_iter *); |
| 50 | int vm_domainset_iter_page_init(struct vm_domainset_iter *, |
| 51 | struct vm_object *, vm_pindex_t, int *, int *); |
| 52 | int vm_domainset_iter_policy(struct vm_domainset_iter *, int *); |
| 53 | int vm_domainset_iter_policy_init(struct vm_domainset_iter *, |
| 54 | struct domainset *, int *, int *); |
| 55 | int vm_domainset_iter_policy_ref_init(struct vm_domainset_iter *, |
| 56 | struct domainset_ref *, int *, int *); |
| 57 | void vm_domainset_iter_ignore(struct vm_domainset_iter *, int); |
| 58 | |
| 59 | int vm_wait_doms(const domainset_t *, int mflags); |
| 60 | |
| 61 | #endif /* __VM_DOMAINSET_H__ */ |