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 11 static inline void chp_id_init(struct chp_id *chpid) 12 { 13 memset(chpid, 0, sizeof(struct chp_id)); 14 } 15 16 static 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 21 static 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 31 static 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 */ 40