/*
* Copyright (c) 2006, 2008, Oracle and/or its affiliates. All rights reserved.
*/
#include "drmP.h"
#include <sys/kstat.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>
#include <sys/sunldi.h>
static char *drmkstat_name[] = {
"opens",
"closes",
"IOCTLs",
"locks",
"unlocks",
NULL
};
static int
drm_kstat_update(kstat_t *ksp, int flag)
{
drm_device_t *sc;
kstat_named_t *knp;
int tmp;
if (flag != KSTAT_READ)
return (EACCES);
sc = ksp->ks_private;
knp = ksp->ks_data;
for (tmp = 1; tmp < 6; tmp++) {
(knp++)->value.ui32 = sc->counts[tmp];
}
return (0);
}
int
drm_init_kstats(drm_device_t *sc)
{
int instance;
kstat_t *ksp;
kstat_named_t *knp;
char *np;
char **aknp;
instance = ddi_get_instance(sc->dip);
aknp = drmkstat_name;
ksp = kstat_create("drm", instance, "drminfo", "drm",
KSTAT_TYPE_NAMED, sizeof (drmkstat_name)/sizeof (char *) - 1,
KSTAT_FLAG_PERSISTENT);
if (ksp == NULL)
return (NULL);
ksp->ks_private = sc;
ksp->ks_update = drm_kstat_update;
for (knp = ksp->ks_data; (np = (*aknp)) != NULL; knp++, aknp++) {
kstat_named_init(knp, np, KSTAT_DATA_UINT32);
}
kstat_install(ksp);
sc->asoft_ksp = ksp;
return (0);
}
void
drm_fini_kstats(drm_device_t *sc)
{
if (sc->asoft_ksp)
kstat_delete(sc->asoft_ksp);
else
cmn_err(CE_WARN, "attempt to delete null kstat");
}