60 lines
2.1 KiB
C
60 lines
2.1 KiB
C
/*-
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* Copyright (c) 1997, Duke University
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* All rights reserved.
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*
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* Author:
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* Andrew Gallatin <gallatin@cs.duke.edu>
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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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* 3. The name of Duke University may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY DUKE UNIVERSITY ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DUKE UNIVERSITY BE LIABLE
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* 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 PROFITSOR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _SYS_JUMBO_H_
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#define _SYS_JUMBO_H_
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#ifdef _KERNEL
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extern vm_offset_t jumbo_basekva;
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static __inline caddr_t jumbo_phys_to_kva(vm_paddr_t pa);
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static __inline caddr_t
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jumbo_phys_to_kva(vm_paddr_t pa)
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{
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vm_page_t pg;
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pg = PHYS_TO_VM_PAGE(pa);
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pg->flags &= ~PG_BUSY;
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return (caddr_t)(ptoa((vm_offset_t)pg->pindex) + jumbo_basekva);
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}
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int jumbo_vm_init(void);
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void jumbo_freem(void *addr, void *args);
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vm_page_t jumbo_pg_alloc(void);
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void jumbo_pg_free(vm_offset_t addr);
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void jumbo_pg_steal(vm_page_t pg);
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#endif /* _KERNEL */
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#endif /* !_SYS_JUMBO_H_ */
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