xref: /linux/arch/s390/include/asm/extmem.h (revision 86d688984deefa3ae5a802880c11f2b408b5d6cf)
1 /*
2  *  include/asm-s390x/extmem.h
3  *
4  *  definitions for external memory segment support
5  *  Copyright (C) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation
6  */
7 
8 #ifndef _ASM_S390X_DCSS_H
9 #define _ASM_S390X_DCSS_H
10 #ifndef __ASSEMBLY__
11 
12 /* possible values for segment type as returned by segment_info */
13 #define SEG_TYPE_SW 0
14 #define SEG_TYPE_EW 1
15 #define SEG_TYPE_SR 2
16 #define SEG_TYPE_ER 3
17 #define SEG_TYPE_SN 4
18 #define SEG_TYPE_EN 5
19 #define SEG_TYPE_SC 6
20 #define SEG_TYPE_EWEN 7
21 
22 #define SEGMENT_SHARED 0
23 #define SEGMENT_EXCLUSIVE 1
24 
25 int segment_load (char *name, int segtype, unsigned long *addr, unsigned long *length);
26 void segment_unload(char *name);
27 void segment_save(char *name);
28 int segment_type (char* name);
29 int segment_modify_shared (char *name, int do_nonshared);
30 void segment_warning(int rc, char *seg_name);
31 
32 #endif
33 #endif
34