Current Path : /sys/amd64/compile/hs32/modules/usr/src/sys/modules/aac/machine/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/aac/machine/sf_buf.h |
/*- * Copyright (c) 2003, 2005 Alan L. Cox <alc@cs.rice.edu> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD: release/9.1.0/sys/amd64/include/sf_buf.h 142840 2005-02-28 23:38:15Z peter $ */ #ifndef _MACHINE_SF_BUF_H_ #define _MACHINE_SF_BUF_H_ #include <vm/vm.h> #include <vm/vm_param.h> #include <vm/vm_page.h> /* * On this machine, the only purpose for which sf_buf is used is to implement * an opaque pointer required by the machine-independent parts of the kernel. * That pointer references the vm_page that is "mapped" by the sf_buf. The * actual mapping is provided by the direct virtual-to-physical mapping. */ struct sf_buf; static __inline vm_offset_t sf_buf_kva(struct sf_buf *sf) { return (PHYS_TO_DMAP(VM_PAGE_TO_PHYS((vm_page_t)sf))); } static __inline vm_page_t sf_buf_page(struct sf_buf *sf) { return ((vm_page_t)sf); } #endif /* !_MACHINE_SF_BUF_H_ */