e999111ae7
required by video card drivers. Specifically, this change introduces vm_cache_mode_t with an appropriate VM_CACHE_DEFAULT definition on all architectures. In addition, this changes adds a vm_cache_mode_t parameter to kmem_alloc_contig() and vm_phys_alloc_contig(). These will be the interfaces for allocating mapped kernel memory and physical memory, respectively, with non-default cache modes. In collaboration with: jhb
57 lines
2.2 KiB
C
57 lines
2.2 KiB
C
/*-
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* Copyright (c) 2002-2006 Rice University
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* Copyright (c) 2007 Alan L. Cox <alc@cs.rice.edu>
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* All rights reserved.
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*
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* This software was developed for the FreeBSD Project by Alan L. Cox,
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* Olivier Crameri, Peter Druschel, Sitaram Iyer, and Juan Navarro.
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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 COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
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* 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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* $FreeBSD$
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*/
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/*
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* Physical memory system definitions
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*/
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#ifndef _VM_PHYS_H_
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#define _VM_PHYS_H_
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#ifdef _KERNEL
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void vm_phys_add_page(vm_paddr_t pa);
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vm_page_t vm_phys_alloc_contig(unsigned long npages,
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vm_paddr_t low, vm_paddr_t high,
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unsigned long alignment, unsigned long boundary, vm_cache_mode_t mode);
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vm_page_t vm_phys_alloc_pages(int pool, int order);
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vm_paddr_t vm_phys_bootstrap_alloc(vm_size_t size, unsigned long alignment);
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void vm_phys_free_pages(vm_page_t m, int order);
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void vm_phys_init(void);
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void vm_phys_set_pool(int pool, vm_page_t m, int order);
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boolean_t vm_phys_unfree_page(vm_page_t m);
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boolean_t vm_phys_zero_pages_idle(void);
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#endif /* _KERNEL */
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#endif /* !_VM_PHYS_H_ */
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