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      1 /*	$NetBSD: seglist.h,v 1.1 2026/04/04 12:24:41 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997 The Steve Woodford
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #ifndef _M68K_SEGLIST_H_
     29 #define	_M68K_SEGLIST_H_
     30 
     31 /*
     32  * Struture describing a physical memory segment.  ps_start and ps_end
     33  * cover the entire segment, while ps_avail_start and ps_avail_end
     34  * account for memory stolen from the segment for various reasons.
     35  * Ultimately, [ps_avail_start,ps_avail_end) is what gets loaded
     36  * into UVM.
     37  */
     38 typedef struct {
     39 	paddr_t		ps_start;	/* Start of segment */
     40 	paddr_t		ps_end;		/* End of segment */
     41 	paddr_t		ps_avail_start;	/* Available start of segment */
     42 	paddr_t		ps_avail_end;	/* Available end of segment */
     43 } phys_seg_list_t;
     44 
     45 extern phys_seg_list_t phys_seg_list[];
     46 
     47 #endif /* _M68K_SEGLIST_H_ */
     48