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74 lines
2.4 KiB
C
74 lines
2.4 KiB
C
/* $NetBSD: mm.h,v 1.5 2015/04/17 15:02:50 riastradh Exp $ */
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/*-
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* Copyright (c) 2013 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Taylor R. Campbell.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _LINUX_MM_H_
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#define _LINUX_MM_H_
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#include <uvm/uvm_extern.h>
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#include <asm/page.h>
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struct file;
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/* XXX Ugh bletch! Whattakludge! Linux's sense is reversed... */
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#undef PAGE_MASK
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#define PAGE_MASK (~(PAGE_SIZE-1))
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#define PAGE_ALIGN(x) (((x) + (PAGE_SIZE-1)) & ~(PAGE_SIZE-1))
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#define offset_in_page(x) ((x) & (PAGE_SIZE-1))
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struct sysinfo {
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unsigned long totalram;
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unsigned long totalhigh;
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uint32_t mem_unit;
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};
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static inline void
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si_meminfo(struct sysinfo *si)
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{
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si->totalram = uvmexp.npages;
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si->totalhigh = kernel_map->size >> PAGE_SHIFT;
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si->mem_unit = PAGE_SIZE;
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/* XXX Fill in more as needed. */
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}
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static inline unsigned long
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vm_mmap(struct file *file __unused, unsigned long base __unused,
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unsigned long size __unused, unsigned long prot __unused,
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unsigned long flags __unused, unsigned long token __unused)
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{
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return -ENODEV;
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}
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#endif /* _LINUX_MM_H_ */
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