void
consinit(void)
{
/*
* Initialize the console before we print anything out.
*/
physaccess((void*)virtual_avail,
(void*)0x58000000, PAGE_SIZE, PG_RW|PG_CI);
zs_cnattach((void*)virtual_avail);
virtual_avail += PAGE_SIZE;
#ifdef KGDB
kgdb_dev = 1;
kgdb_attach((void*)zscngetc, (void*)zscnputc, (void *)0);
if (boothowto & RB_KDB) {
kgdb_connect(1);
zscons.cn_putc = zs_kgdb_cnputc;
zscons.cn_getc = zs_kgdb_cngetc;
}
#endif
#ifdef DDB
if (boothowto & RB_KDB)
Debugger();
#endif
sic_enable_int(39, 2, 1, 7, 0); /* NMI */
}
/* ARGSUSED */
int
bus_space_map(bus_space_tag_t t, bus_addr_t bpa, bus_size_t size, int flags,
bus_space_handle_t *bshp)
{
vaddr_t kva;
vsize_t offset;
int error;
if (t->bustype == HP300_BUS_SPACE_INTIO) {
/*
* Intio space is direct-mapped in pmap_bootstrap(); just
* do the translation.
*/
*bshp = (bus_space_handle_t)IIOV(INTIOBASE + bpa);
return 0;
}
if (t->bustype != HP300_BUS_SPACE_DIO &&
t->bustype != HP300_BUS_SPACE_SGC)
panic("%s: bad space tag", __func__);
/*
* Allocate virtual address space from the extio extent map.
*/
offset = m68k_page_offset(bpa);
size = m68k_round_page(offset + size);
error = extent_alloc(extio_ex, size, PAGE_SIZE, 0,
EX_FAST | EX_NOWAIT | (extio_ex_malloc_safe ? EX_MALLOCOK : 0),
&kva);
if (error)
return error;
/*
* Map the range. The range is always cache-inhibited on the hp300.
*/
physaccess((void *)kva, (void *)bpa, size, PG_RW|PG_CI);
/*
* All done.
*/
*bshp = (bus_space_handle_t)(kva + offset);
return 0;
}
/*
* Allocate/deallocate a cache-inhibited range of kernel virtual address
* space mapping the indicated physical address range [pa - pa+size)
*/
void *
iomap(void *pa, int size)
{
u_long kva;
int error;
#ifdef DEBUG
if (((int)pa & PGOFSET) || (size & PGOFSET))
panic("iomap: unaligned");
#endif
error = extent_alloc(extio_ex, size, PAGE_SIZE, 0,
EX_FAST | EX_NOWAIT | (extio_ex_malloc_safe ? EX_MALLOCOK : 0),
&kva);
if (error)
return 0;
physaccess((void *) kva, pa, size, PG_RW|PG_CI);
return (void *)kva;
}
void fic_init(void)
{
int i;
extern paddr_t avail_start, avail_end;
boothowto = RB_SINGLE; /* XXX for now */
boothowto |= RB_KDB; /* XXX for now */
delay_divisor = 30; /* XXX */
/*
* Tell the VM system about available physical memory. The
* fic uses one segment.
*/
uvm_page_physload(atop(avail_start), atop(avail_end),
atop(avail_start), atop(avail_end), VM_FREELIST_DEFAULT);
/*
* map and init interrupt controller
*/
physaccess((void*)virtual_avail, (void*)0x44000000,
PAGE_SIZE, PG_RW|PG_CI);
sicinit((void*)virtual_avail);
virtual_avail += PAGE_SIZE;
/*
* Initialize error message buffer (at end of core).
* avail_end was pre-decremented in pmap_bootstrap to compensate.
*/
for (i = 0; i < btoc(MSGBUFSIZE); i++)
pmap_enter(pmap_kernel(), (vaddr_t)msgbufaddr + i * PAGE_SIZE,
avail_end + i * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE,
VM_PROT_READ|VM_PROT_WRITE|PMAP_WIRED);
pmap_update(pmap_kernel());
initmsgbuf(msgbufaddr, m68k_round_page(MSGBUFSIZE));
}
