1 /* $NetBSD: highmem.h,v 1.6 2021/12/19 10:51:24 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2013 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Taylor R. Campbell. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _LINUX_HIGHMEM_H_ 33 #define _LINUX_HIGHMEM_H_ 34 35 #include <sys/types.h> 36 #include <sys/queue.h> 37 38 #include <uvm/uvm_extern.h> 39 40 #include <linux/kernel.h> 41 #include <linux/mm.h> 42 #include <linux/mm_types.h> 43 44 /* XXX Make the nm output a little more greppable... */ 45 #define kmap(p) linux_kmap(p) 46 #define kmap_atomic(p) linux_kmap_atomic(p) 47 #define kunmap(p) linux_kunmap(p) 48 #define kunmap_atomic(p) linux_kunmap_atomic(p) 49 50 /* XXX Kludge! */ 51 #define kmap_atomic_prot(page, prot) kmap_atomic(page) 52 53 int linux_kmap_init(void); 54 void linux_kmap_fini(void); 55 56 void * kmap_atomic(struct page *); 57 void kunmap_atomic(void *); 58 59 void * kmap(struct page *); 60 void kunmap(struct page *); 61 62 #endif /* _LINUX_HIGHMEM_H_ */ 63