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97 lines
2.7 KiB
C
97 lines
2.7 KiB
C
/* $NetBSD: vmalloc.h,v 1.4 2014/08/23 08:03:33 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_VMALLOC_H_
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#define _LINUX_VMALLOC_H_
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#include <sys/malloc.h>
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#include <uvm/uvm_extern.h>
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#include <linux/mm_types.h>
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static inline bool
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is_vmalloc_addr(void *addr)
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{
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/* XXX Assumes vmalloc and kmalloc both use malloc(9). */
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return true;
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}
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static inline void *
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vmalloc(unsigned long size)
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{
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return malloc(size, M_TEMP, M_WAITOK);
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}
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static inline void *
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vmalloc_user(unsigned long size)
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{
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return malloc(size, M_TEMP, (M_WAITOK | M_ZERO));
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}
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static inline void *
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vzalloc(unsigned long size)
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{
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return malloc(size, M_TEMP, (M_WAITOK | M_ZERO));
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}
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static inline void
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vfree(void *ptr)
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{
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return free(ptr, M_TEMP);
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}
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#define PAGE_KERNEL 0 /* XXX pgprot */
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static inline void *
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vmap(struct page **pages, unsigned npages, unsigned long flags __unused,
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pgprot_t prot __unused)
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{
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vaddr_t va;
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/* XXX Sleazy cast should be OK here. */
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__CTASSERT(sizeof(*pages[0]) == sizeof(struct vm_page));
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va = uvm_pagermapin((struct vm_page **)pages, npages, 0);
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if (va == 0)
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return NULL;
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return (void *)va;
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}
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static inline void
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vunmap(void *ptr, unsigned npages)
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{
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uvm_pagermapout((vaddr_t)ptr, npages);
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}
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#endif /* _LINUX_VMALLOC_H_ */
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