1 /* $NetBSD: physmap.h,v 1.4 2013/04/08 01:33:53 uebayasi 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 Matt Thomas of 3am Software Foundry. 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 _SYS_PHYSMAP_H_ 33 #define _SYS_PHYSMAP_H_ 34 35 #if !defined(_KERNEL) && !defined(_KMEMUSER) 36 #error "not supposed to be exposed to userland" 37 #endif 38 39 #include <sys/types.h> 40 #include <sys/uio.h> 41 #include <uvm/uvm_extern.h> 42 43 typedef struct { 44 paddr_t ps_addr; 45 psize_t ps_len; 46 } physmap_segment_t; 47 48 /* typedef is in <sys/types.h> */ 49 struct physmap { 50 uint16_t pm_nsegs; 51 uint16_t pm_maxsegs; 52 physmap_segment_t pm_segs[0]; 53 }; 54 55 int physmap_create_iov(physmap_t **, const struct vmspace *, 56 struct iovec *, size_t); 57 int physmap_create_linear(physmap_t **, const struct vmspace *, 58 vaddr_t, vsize_t); 59 physmap_t * 60 physmap_create_pagelist(struct vm_page **, size_t); 61 62 void physmap_destroy(physmap_t *); 63 64 void * physmap_map_init(physmap_t *, size_t, vm_prot_t); 65 size_t physmap_map(void *, vaddr_t *); 66 void physmap_map_fini(void *); 67 68 void physmap_zero(physmap_t *, size_t, size_t); 69 70 #endif /* _SYS_PHYSMAP_H_ */ 71