chpid.h

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/*
 *    Copyright IBM Corp. 2007, 2012
 *    Author(s): Peter Oberparleiter <[email protected]>
 */
#ifndef _ASM_S390_CHPID_H
#define _ASM_S390_CHPID_H

#include <uapi/asm/chpid.h>
#include <asm/cio.h>

static inline void chp_id_init(struct chp_id *chpid)
{
    memset(chpid, 0, sizeof(struct chp_id));
}

static inline int chp_id_is_equal(struct chp_id *a, struct chp_id *b)
{
    return (a->id == b->id) && (a->cssid == b->cssid);
}

static inline void chp_id_next(struct chp_id *chpid)
{
    if (chpid->id < __MAX_CHPID)
        chpid->id++;
    else {
        chpid->id = 0;
        chpid->cssid++;
    }
}

static inline int chp_id_is_valid(struct chp_id *chpid)
{
    return (chpid->cssid <= __MAX_CSSID);
}


#define chp_id_for_each(c) \
    for (chp_id_init(c); chp_id_is_valid(c); chp_id_next(c))
#endif /* _ASM_S390_CHPID_H */