xref: /openbmc/linux/arch/s390/include/asm/extmem.h (revision b2441318)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  *  definitions for external memory segment support
4  *  Copyright IBM Corp. 2003
5  */
6 
7 #ifndef _ASM_S390X_DCSS_H
8 #define _ASM_S390X_DCSS_H
9 #ifndef __ASSEMBLY__
10 
11 /* possible values for segment type as returned by segment_info */
12 #define SEG_TYPE_SW 0
13 #define SEG_TYPE_EW 1
14 #define SEG_TYPE_SR 2
15 #define SEG_TYPE_ER 3
16 #define SEG_TYPE_SN 4
17 #define SEG_TYPE_EN 5
18 #define SEG_TYPE_SC 6
19 #define SEG_TYPE_EWEN 7
20 
21 #define SEGMENT_SHARED 0
22 #define SEGMENT_EXCLUSIVE 1
23 
24 int segment_load (char *name, int segtype, unsigned long *addr, unsigned long *length);
25 void segment_unload(char *name);
26 void segment_save(char *name);
27 int segment_type (char* name);
28 int segment_modify_shared (char *name, int do_nonshared);
29 void segment_warning(int rc, char *seg_name);
30 
31 #endif
32 #endif
33