1 /* 2 * Copyright (c) 2015-2016 François Tigeot 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice unmodified, this list of conditions, and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef _LINUX_VMALLOC_H_ 28 #define _LINUX_VMALLOC_H_ 29 30 #include <vm/vm_extern.h> 31 32 static inline void * 33 vmap(struct vm_page **pages, unsigned int count, 34 unsigned long flags, unsigned long prot) 35 { 36 vm_offset_t off; 37 size_t size; 38 39 size = count * PAGE_SIZE; 40 off = kmem_alloc_nofault(&kernel_map, size, PAGE_SIZE); 41 if (off == 0) 42 return (NULL); 43 44 pmap_qenter(off, pages, count); 45 46 return (void *)off; 47 } 48 49 static inline void 50 vunmap(const void *addr) 51 { 52 /* Nothing to do on systems with a direct memory map */ 53 } 54 55 #endif /* _LINUX_VMALLOC_H_ */ 56