mm.h revision 1.3.4.3
1 1.3.4.2 tls /* $NetBSD: mm.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_MM_H_ 33 1.3.4.2 tls #define _LINUX_MM_H_ 34 1.3.4.2 tls 35 1.3.4.2 tls #include <uvm/uvm_extern.h> 36 1.3.4.2 tls 37 1.3.4.2 tls #include <asm/page.h> 38 1.3.4.2 tls 39 1.3.4.3 jdolecek struct file; 40 1.3.4.3 jdolecek 41 1.3.4.2 tls /* XXX Ugh bletch! Whattakludge! Linux's sense is reversed... */ 42 1.3.4.2 tls #undef PAGE_MASK 43 1.3.4.2 tls #define PAGE_MASK (~(PAGE_SIZE-1)) 44 1.3.4.2 tls 45 1.3.4.2 tls #define PAGE_ALIGN(x) (((x) + (PAGE_SIZE-1)) & ~(PAGE_SIZE-1)) 46 1.3.4.2 tls #define offset_in_page(x) ((x) & (PAGE_SIZE-1)) 47 1.3.4.2 tls 48 1.3.4.2 tls struct sysinfo { 49 1.3.4.2 tls unsigned long totalram; 50 1.3.4.2 tls unsigned long totalhigh; 51 1.3.4.2 tls uint32_t mem_unit; 52 1.3.4.2 tls }; 53 1.3.4.2 tls 54 1.3.4.2 tls static inline void 55 1.3.4.2 tls si_meminfo(struct sysinfo *si) 56 1.3.4.2 tls { 57 1.3.4.2 tls 58 1.3.4.2 tls si->totalram = uvmexp.npages; 59 1.3.4.2 tls si->totalhigh = kernel_map->size >> PAGE_SHIFT; 60 1.3.4.2 tls si->mem_unit = PAGE_SIZE; 61 1.3.4.2 tls /* XXX Fill in more as needed. */ 62 1.3.4.2 tls } 63 1.3.4.2 tls 64 1.3.4.2 tls static inline unsigned long 65 1.3.4.3 jdolecek vm_mmap(struct file *file __unused, unsigned long base __unused, 66 1.3.4.3 jdolecek unsigned long size __unused, unsigned long prot __unused, 67 1.3.4.3 jdolecek unsigned long flags __unused, unsigned long token __unused) 68 1.3.4.2 tls { 69 1.3.4.2 tls 70 1.3.4.3 jdolecek return -ENODEV; 71 1.3.4.3 jdolecek } 72 1.3.4.2 tls 73 1.3.4.3 jdolecek static inline unsigned long 74 1.3.4.3 jdolecek get_num_physpages(void) 75 1.3.4.3 jdolecek { 76 1.3.4.3 jdolecek return uvmexp.npages; 77 1.3.4.2 tls } 78 1.3.4.2 tls 79 1.3.4.2 tls #endif /* _LINUX_MM_H_ */ 80
Indexes created Thu Oct 02 14:10:14 GMT 2025