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50 lines
2.1 KiB
C
50 lines
2.1 KiB
C
/*-
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* Copyright (c) 1998 Doug Rabson
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* All rights reserved.
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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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MACHINE_SGMAP_H_
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#define _MACHINE_SGMAP_H_
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struct sgmap;
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typedef void sgmap_map_callback(void *arg, bus_addr_t ba, vm_offset_t pa);
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vm_offset_t sgmap_overflow_page(void);
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struct sgmap *sgmap_map_create(bus_addr_t sba, bus_addr_t eba,
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sgmap_map_callback *map, void *arg);
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void sgmap_map_destroy(struct sgmap *sgmap);
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bus_addr_t sgmap_alloc_region(struct sgmap *sgmap,
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bus_size_t size, bus_size_t boundary,
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void **mhp);
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void sgmap_load_region(struct sgmap *sgmap, bus_addr_t sba,
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vm_offset_t va, bus_size_t size);
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void sgmap_unload_region(struct sgmap *sgmap,
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bus_addr_t sba, bus_size_t size);
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void sgmap_free_region(struct sgmap *sgmap, void *mh);
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#endif /* !_MACHINE_SGMAP_H_ */
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