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1/*
2 * Copyright IBM Corp. 2007, 2012
3 * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
4 */
5#ifndef _ASM_S390_CHPID_H
6#define _ASM_S390_CHPID_H
7
8#include <uapi/asm/chpid.h>
9#include <asm/cio.h>
10
11static inline void chp_id_init(struct chp_id *chpid)
12{
13 memset(chpid, 0, sizeof(struct chp_id));
14}
15
16static inline int chp_id_is_equal(struct chp_id *a, struct chp_id *b)
17{
18 return (a->id == b->id) && (a->cssid == b->cssid);
19}
20
21static inline void chp_id_next(struct chp_id *chpid)
22{
23 if (chpid->id < __MAX_CHPID)
24 chpid->id++;
25 else {
26 chpid->id = 0;
27 chpid->cssid++;
28 }
29}
30
31static inline int chp_id_is_valid(struct chp_id *chpid)
32{
33 return (chpid->cssid <= __MAX_CSSID);
34}
35
36
37#define chp_id_for_each(c) \
38 for (chp_id_init(c); chp_id_is_valid(c); chp_id_next(c))
39#endif /* _ASM_S390_CHPID_H */