1 /* $NetBSD: vmem.h,v 1.12 2009/02/18 13:31:59 yamt 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 #include <stdbool.h> 36 #endif /* !defined(_KERNEL) */ 37 38 typedef struct vmem vmem_t; 39 40 typedef unsigned int vm_flag_t; 41 42 typedef uintptr_t vmem_addr_t; 43 typedef size_t vmem_size_t; 44 #define VMEM_ADDR_NULL 0 45 46 vmem_t *vmem_create(const char *, vmem_addr_t, vmem_size_t, vmem_size_t, 47 vmem_addr_t (*)(vmem_t *, vmem_size_t, vmem_size_t *, vm_flag_t), 48 void (*)(vmem_t *, vmem_addr_t, vmem_size_t), vmem_t *, vmem_size_t, 49 vm_flag_t, int); 50 void vmem_destroy(vmem_t *); 51 vmem_addr_t vmem_alloc(vmem_t *, vmem_size_t, vm_flag_t); 52 void vmem_free(vmem_t *, vmem_addr_t, vmem_size_t); 53 vmem_addr_t vmem_xalloc(vmem_t *, vmem_size_t, vmem_size_t, vmem_size_t, 54 vmem_size_t, vmem_addr_t, vmem_addr_t, vm_flag_t); 55 void vmem_xfree(vmem_t *, vmem_addr_t, vmem_size_t); 56 vmem_addr_t vmem_add(vmem_t *, vmem_addr_t, vmem_size_t, vm_flag_t); 57 vmem_size_t vmem_roundup_size(vmem_t *, vmem_size_t); 58 bool vmem_reap(vmem_t *); 59 void vmem_rehash_start(void); 60 void vmem_whatis(uintptr_t, void (*)(const char *, ...)); 61 void vmem_print(uintptr_t, const char *, void (*)(const char *, ...)); 62 void vmem_printall(const char *, void (*)(const char *, ...)); 63 64 /* vm_flag_t */ 65 #define VM_SLEEP 0x00000001 66 #define VM_NOSLEEP 0x00000002 67 #define VM_INSTANTFIT 0x00001000 68 #define VM_BESTFIT 0x00002000 69 70 #endif /* !_SYS_VMEM_H_ */ 71