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sys/arm64/include/sf_buf.h
- This file was added.
| Property | Old Value | New Value |
|---|---|---|
| svn:eol-style | null | native \ No newline at end of property |
| svn:keywords | null | FreeBSD=%H \ No newline at end of property |
| svn:mime-type | null | text/plain \ No newline at end of property |
| /*- | |||||
| * 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. | |||||
| * | |||||
| * $FreeBSD$ | |||||
| */ | |||||
| #ifndef _MACHINE_SF_BUF_H_ | |||||
| #define _MACHINE_SF_BUF_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. | |||||
| */ | |||||
| 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_ */ | |||||