page.h revision 1.2.6.2
1 1.2.6.2 tls /* $NetBSD: page.h,v 1.2.6.2 2014/08/20 00:04:21 tls Exp $ */ 2 1.2.6.2 tls 3 1.2.6.2 tls /*- 4 1.2.6.2 tls * Copyright (c) 2014 The NetBSD Foundation, Inc. 5 1.2.6.2 tls * All rights reserved. 6 1.2.6.2 tls * 7 1.2.6.2 tls * This code is derived from software contributed to The NetBSD Foundation 8 1.2.6.2 tls * by Taylor R. Campbell. 9 1.2.6.2 tls * 10 1.2.6.2 tls * Redistribution and use in source and binary forms, with or without 11 1.2.6.2 tls * modification, are permitted provided that the following conditions 12 1.2.6.2 tls * are met: 13 1.2.6.2 tls * 1. Redistributions of source code must retain the above copyright 14 1.2.6.2 tls * notice, this list of conditions and the following disclaimer. 15 1.2.6.2 tls * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.6.2 tls * notice, this list of conditions and the following disclaimer in the 17 1.2.6.2 tls * documentation and/or other materials provided with the distribution. 18 1.2.6.2 tls * 19 1.2.6.2 tls * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2.6.2 tls * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2.6.2 tls * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2.6.2 tls * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2.6.2 tls * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2.6.2 tls * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2.6.2 tls * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2.6.2 tls * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2.6.2 tls * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2.6.2 tls * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2.6.2 tls * POSSIBILITY OF SUCH DAMAGE. 30 1.2.6.2 tls */ 31 1.2.6.2 tls 32 1.2.6.2 tls #ifndef _ASM_PAGE_H_ 33 1.2.6.2 tls #define _ASM_PAGE_H_ 34 1.2.6.2 tls 35 1.2.6.2 tls #include <sys/bus.h> 36 1.2.6.2 tls 37 1.2.6.2 tls #include <uvm/uvm_page.h> 38 1.2.6.2 tls 39 1.2.6.2 tls #include <linux/mm_types.h> 40 1.2.6.2 tls 41 1.2.6.2 tls /* 42 1.2.6.2 tls * XXX Not sure why this is here, but so it is in Linux... Also, not 43 1.2.6.2 tls * sure what the right type is: Linux uses dma_addr_t, but I don't 44 1.2.6.2 tls * think bus_addr_t is right here -- paddr_t sounds more appropriate. 45 1.2.6.2 tls */ 46 1.2.6.2 tls 47 1.2.6.2 tls static inline bus_addr_t 48 1.2.6.2 tls page_to_phys(struct page *page) 49 1.2.6.2 tls { 50 1.2.6.2 tls return VM_PAGE_TO_PHYS(&page->p_vmp); 51 1.2.6.2 tls } 52 1.2.6.2 tls 53 1.2.6.2 tls static inline unsigned long 54 1.2.6.2 tls page_to_pfn(struct page *page) 55 1.2.6.2 tls { 56 1.2.6.2 tls return (page_to_phys(page) >> PAGE_SHIFT); 57 1.2.6.2 tls } 58 1.2.6.2 tls 59 1.2.6.2 tls #endif /* _ASM_PAGE_H_ */ 60
Indexes created Tue Oct 07 21:09:53 GMT 2025