1 /* $NetBSD: vmem.h,v 1.25 2023/12/03 19:34:08 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c)2006 YAMAMOTO Takashi, 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, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _SYS_VMEM_H_ 30 #define _SYS_VMEM_H_ 31 32 #include <sys/types.h> 33 34 #if defined(_KERNEL) 35 #else /* defined(_KERNEL) */ 36 #include <stdbool.h> 37 #endif /* defined(_KERNEL) */ 38 39 typedef struct vmem vmem_t; 40 41 typedef unsigned int vm_flag_t; 42 43 typedef uintptr_t vmem_addr_t; 44 typedef size_t vmem_size_t; 45 #define VMEM_ADDR_MIN 0 46 #define VMEM_ADDR_MAX (~(vmem_addr_t)0) 47 48 typedef int (vmem_import_t)(vmem_t *, vmem_size_t, vm_flag_t, 49 vmem_addr_t *); 50 typedef void (vmem_release_t)(vmem_t *, vmem_addr_t, vmem_size_t); 51 52 typedef int (vmem_ximport_t)(vmem_t *, vmem_size_t, vmem_size_t *, 53 vm_flag_t, vmem_addr_t *); 54 55 extern vmem_t *kmem_arena; 56 extern vmem_t *kmem_meta_arena; 57 extern vmem_t *kmem_va_arena; 58 59 void vmem_subsystem_init(vmem_t *vm); 60 61 vmem_t * vmem_create(const char *, vmem_addr_t, vmem_size_t, vmem_size_t, 62 vmem_import_t *, vmem_release_t *, vmem_t *, vmem_size_t, 63 vm_flag_t, int); 64 vmem_t * vmem_xcreate(const char *, vmem_addr_t, vmem_size_t, 65 vmem_size_t, vmem_ximport_t *, vmem_release_t *, vmem_t *, 66 vmem_size_t, vm_flag_t, int); 67 void vmem_destroy(vmem_t *); 68 int vmem_alloc(vmem_t *, vmem_size_t, vm_flag_t, vmem_addr_t *); 69 void vmem_free(vmem_t *, vmem_addr_t, vmem_size_t); 70 int vmem_xalloc(vmem_t *, vmem_size_t, vmem_size_t, vmem_size_t, 71 vmem_size_t, vmem_addr_t, vmem_addr_t, vm_flag_t, 72 vmem_addr_t *); 73 int vmem_xalloc_addr(vmem_t *, vmem_addr_t, vmem_size_t, vm_flag_t); 74 void vmem_xfree(vmem_t *, vmem_addr_t, vmem_size_t); 75 void vmem_xfreeall(vmem_t *); 76 int vmem_add(vmem_t *, vmem_addr_t, vmem_size_t, vm_flag_t); 77 vmem_size_t vmem_roundup_size(vmem_t *, vmem_size_t); 78 vmem_size_t vmem_size(vmem_t *, int typemask); 79 void vmem_rehash_start(void); 80 void vmem_whatis(uintptr_t, void (*)(const char *, ...) 81 __printflike(1, 2)); 82 void vmem_print(uintptr_t, const char *, void (*)(const char *, ...) 83 __printflike(1, 2)); 84 void vmem_printall(const char *, void (*)(const char *, ...) 85 __printflike(1, 2)); 86 87 /* vm_flag_t */ 88 #define VM_SLEEP 0x00000001 89 #define VM_NOSLEEP 0x00000002 90 #define VM_INSTANTFIT 0x00001000 91 #define VM_BESTFIT 0x00002000 92 #define VM_BOOTSTRAP 0x00010000 93 #define VM_POPULATING 0x00040000 94 #define VM_LARGEIMPORT 0x00080000 95 #define VM_XIMPORT 0x00100000 96 #define VM_PRIVTAGS 0x00200000 97 98 /* vmem_size typemask */ 99 #define VMEM_ALLOC 0x01 100 #define VMEM_FREE 0x02 101 102 #endif /* !_SYS_VMEM_H_ */ 103
Indexes created Sat Sep 20 22:09:52 GMT 2025