/*
* If we failed to allocate uba resources, put us on a queue to wait
* until there is available resources. Resources to compete about
* are map registers and BDPs. This is normally only a problem on
* Unibus systems, Qbus systems have more map registers than usable.
*/
void
uba_enqueue(struct uba_unit *uu)
{
struct uba_softc *uh;
int s;
uh = device_private(device_parent(uu->uu_dev));
s = spluba();
SIMPLEQ_INSERT_TAIL(&uh->uh_resq, uu, uu_resq);
splx(s);
}
/*
* Generate a reset on uba number uban. Then
* call each device that asked to be called during attach,
* giving it a chance to clean up so as to be able to continue.
*/
void
ubareset(struct uba_softc *uh)
{
struct uba_reset *ur;
int s;
s = spluba();
SIMPLEQ_INIT(&uh->uh_resq);
printf("%s: reset", device_xname(uh->uh_dev));
(*uh->uh_ubainit)(uh);
ur = SIMPLEQ_FIRST(&uh->uh_resetq);
if (ur) do {
printf(" %s", device_xname(ur->ur_dev));
(*ur->ur_reset)(ur->ur_dev);
} while ((ur = SIMPLEQ_NEXT(ur, ur_resetq)));
printf("\n");
splx(s);
}
/* ARGSUSED */
int
raclose(dev_t dev, int flags, int fmt, struct lwp *l)
{
struct ra_softc *ra = mscp_device_lookup(dev);
int mask = (1 << DISKPART(dev));
mutex_enter(&ra->ra_disk.dk_openlock);
switch (fmt) {
case S_IFCHR:
ra->ra_disk.dk_copenmask &= ~mask;
break;
case S_IFBLK:
ra->ra_disk.dk_bopenmask &= ~mask;
break;
}
ra->ra_disk.dk_openmask =
ra->ra_disk.dk_copenmask | ra->ra_disk.dk_bopenmask;
/*
* Should wait for I/O to complete on this partition even if
* others are open, but wait for work on blkflush().
*/
#if notyet
if (ra->ra_openpart == 0) {
s = spluba();
while (bufq_peek(udautab[unit]) != NULL)
(void) tsleep(&udautab[unit], PZERO - 1,
"raclose", 0);
splx(s);
ra->ra_state = DK_CLOSED;
ra->ra_wlabel = 0;
}
#endif
mutex_exit(&ra->ra_disk.dk_openlock);
return (0);
}
