vmalloc.h revision 1.3.4.3
1 1.3.4.2 tls /* $NetBSD: vmalloc.h,v 1.3.4.3 2017/12/03 11:37:59 jdolecek Exp $ */ 2 1.3.4.2 tls 3 1.3.4.2 tls /*- 4 1.3.4.2 tls * Copyright (c) 2013 The NetBSD Foundation, Inc. 5 1.3.4.2 tls * All rights reserved. 6 1.3.4.2 tls * 7 1.3.4.2 tls * This code is derived from software contributed to The NetBSD Foundation 8 1.3.4.2 tls * by Taylor R. Campbell. 9 1.3.4.2 tls * 10 1.3.4.2 tls * Redistribution and use in source and binary forms, with or without 11 1.3.4.2 tls * modification, are permitted provided that the following conditions 12 1.3.4.2 tls * are met: 13 1.3.4.2 tls * 1. Redistributions of source code must retain the above copyright 14 1.3.4.2 tls * notice, this list of conditions and the following disclaimer. 15 1.3.4.2 tls * 2. Redistributions in binary form must reproduce the above copyright 16 1.3.4.2 tls * notice, this list of conditions and the following disclaimer in the 17 1.3.4.2 tls * documentation and/or other materials provided with the distribution. 18 1.3.4.2 tls * 19 1.3.4.2 tls * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.3.4.2 tls * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.3.4.2 tls * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.3.4.2 tls * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.3.4.2 tls * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.3.4.2 tls * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.3.4.2 tls * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.3.4.2 tls * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.3.4.2 tls * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.3.4.2 tls * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.3.4.2 tls * POSSIBILITY OF SUCH DAMAGE. 30 1.3.4.2 tls */ 31 1.3.4.2 tls 32 1.3.4.2 tls #ifndef _LINUX_VMALLOC_H_ 33 1.3.4.2 tls #define _LINUX_VMALLOC_H_ 34 1.3.4.2 tls 35 1.3.4.2 tls #include <sys/malloc.h> 36 1.3.4.2 tls 37 1.3.4.2 tls #include <uvm/uvm_extern.h> 38 1.3.4.2 tls 39 1.3.4.2 tls #include <linux/mm_types.h> 40 1.3.4.2 tls 41 1.3.4.3 jdolecek static inline bool 42 1.3.4.3 jdolecek is_vmalloc_addr(void *addr) 43 1.3.4.3 jdolecek { 44 1.3.4.3 jdolecek /* XXX Assumes vmalloc and kmalloc both use malloc(9). */ 45 1.3.4.3 jdolecek return true; 46 1.3.4.3 jdolecek } 47 1.3.4.3 jdolecek 48 1.3.4.3 jdolecek static inline void * 49 1.3.4.3 jdolecek vmalloc(unsigned long size) 50 1.3.4.3 jdolecek { 51 1.3.4.3 jdolecek return malloc(size, M_TEMP, M_WAITOK); 52 1.3.4.3 jdolecek } 53 1.3.4.3 jdolecek 54 1.3.4.2 tls static inline void * 55 1.3.4.2 tls vmalloc_user(unsigned long size) 56 1.3.4.2 tls { 57 1.3.4.2 tls return malloc(size, M_TEMP, (M_WAITOK | M_ZERO)); 58 1.3.4.2 tls } 59 1.3.4.2 tls 60 1.3.4.2 tls static inline void * 61 1.3.4.2 tls vzalloc(unsigned long size) 62 1.3.4.2 tls { 63 1.3.4.2 tls return malloc(size, M_TEMP, (M_WAITOK | M_ZERO)); 64 1.3.4.2 tls } 65 1.3.4.2 tls 66 1.3.4.2 tls static inline void 67 1.3.4.2 tls vfree(void *ptr) 68 1.3.4.2 tls { 69 1.3.4.2 tls return free(ptr, M_TEMP); 70 1.3.4.2 tls } 71 1.3.4.2 tls 72 1.3.4.2 tls #define PAGE_KERNEL 0 /* XXX pgprot */ 73 1.3.4.2 tls 74 1.3.4.2 tls static inline void * 75 1.3.4.2 tls vmap(struct page **pages, unsigned npages, unsigned long flags __unused, 76 1.3.4.2 tls pgprot_t prot __unused) 77 1.3.4.2 tls { 78 1.3.4.2 tls vaddr_t va; 79 1.3.4.2 tls 80 1.3.4.2 tls /* XXX Sleazy cast should be OK here. */ 81 1.3.4.2 tls __CTASSERT(sizeof(*pages[0]) == sizeof(struct vm_page)); 82 1.3.4.2 tls va = uvm_pagermapin((struct vm_page **)pages, npages, 0); 83 1.3.4.2 tls if (va == 0) 84 1.3.4.2 tls return NULL; 85 1.3.4.2 tls 86 1.3.4.2 tls return (void *)va; 87 1.3.4.2 tls } 88 1.3.4.2 tls 89 1.3.4.2 tls static inline void 90 1.3.4.2 tls vunmap(void *ptr, unsigned npages) 91 1.3.4.2 tls { 92 1.3.4.2 tls 93 1.3.4.2 tls uvm_pagermapout((vaddr_t)ptr, npages); 94 1.3.4.2 tls } 95 1.3.4.2 tls 96 1.3.4.2 tls #endif /* _LINUX_VMALLOC_H_ */ 97
Indexes created Mon Sep 29 21:09:56 GMT 2025