memregion.h revision 3db5540dfd889bc008db3ff2f868cce0f6fb2a04 
1/* memregion.h
2 *
3 * Copyright (C) 2010 - 2013 UNISYS CORPORATION
4 * All rights reserved.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or (at
9 * your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
14 * NON INFRINGEMENT.  See the GNU General Public License for more
15 * details.
16 */
17
18#ifndef __MEMREGION_H__
19#define __MEMREGION_H__
20
21#include "timskmod.h"
22
23/* MEMREGION is an opaque structure to users.
24 * Fields are declared only in the implementation .c files.
25 */
26typedef struct MEMREGION_Tag MEMREGION;
27
28MEMREGION *visor_memregion_create(HOSTADDRESS physaddr, ulong nbytes);
29MEMREGION *visor_memregion_create_overlapped(MEMREGION *parent,
30					     ulong offset, ulong nbytes);
31int visor_memregion_resize(MEMREGION *memregion, ulong newsize);
32int visor_memregion_read(MEMREGION *memregion,
33		   ulong offset, void *dest, ulong nbytes);
34int visor_memregion_write(MEMREGION *memregion,
35			  ulong offset, void *src, ulong nbytes);
36void visor_memregion_destroy(MEMREGION *memregion);
37HOSTADDRESS visor_memregion_get_physaddr(MEMREGION *memregion);
38ulong visor_memregion_get_nbytes(MEMREGION *memregion);
39void memregion_dump(MEMREGION *memregion, char *s,
40		    ulong off, ulong len, struct seq_file *seq);
41void __iomem *visor_memregion_get_pointer(MEMREGION *memregion);
42
43#endif
44