/*
* Unmap a previously mapped device.
*/
void
iounmap(void *kva, int size)
{
#ifdef DEBUG
if (((vaddr_t)kva & PGOFSET) || (size & PGOFSET))
panic("iounmap: unaligned");
if ((uint8_t *)kva < extiobase ||
(uint8_t *)kva >= extiobase + ptoa(EIOMAPSIZE))
panic("iounmap: bad address");
#endif
physunaccess(kva, size);
if (extent_free(extio_ex, (vaddr_t)kva, size,
EX_NOWAIT | (extio_ex_malloc_safe ? EX_MALLOCOK : 0)))
printf("iounmap: kva %p size 0x%x: can't free region\n",
kva, size);
}
void
bus_space_unmap(bus_space_tag_t t, bus_space_handle_t bsh, bus_size_t size)
{
vaddr_t kva;
vsize_t offset;
if (t->bustype == HP300_BUS_SPACE_INTIO) {
/*
* Intio space is direct-mapped in pmap_bootstrap(); nothing
* to do
*/
return;
}
if (t->bustype != HP300_BUS_SPACE_DIO &&
t->bustype != HP300_BUS_SPACE_SGC)
panic("%s: bad space tag", __func__);
kva = m68k_trunc_page(bsh);
offset = m68k_page_offset(bsh);
size = m68k_round_page(offset + size);
#ifdef DIAGNOSTIC
if (bsh < (vaddr_t)extiobase ||
bsh >= ((vaddr_t)extiobase + ptoa(EIOMAPSIZE)))
panic("%s: bad bus space handle", __func__);
#endif
/*
* Unmap the range.
*/
physunaccess((void *)kva, size);
/*
* Free it from the extio extent map.
*/
if (extent_free(extio_ex, kva, size,
EX_NOWAIT | (extio_ex_malloc_safe ? EX_MALLOCOK : 0)))
printf("%s: kva 0x%lx size 0x%lx: "
"can't free region\n", __func__, (u_long)bsh, size);
}
