void
cpu_startup()
{
caddr_t v;
int sz, i;
vsize_t size;
int base, residual;
vaddr_t minaddr, maxaddr, uarea_pages;
/*
* Initialize error message buffer (at end of core).
* avail_end was pre-decremented in luna88k_bootstrap() to compensate.
*/
for (i = 0; i < btoc(MSGBUFSIZE); i++)
pmap_kenter_pa((paddr_t)msgbufp + i * NBPG,
avail_end + i * NBPG, VM_PROT_READ | VM_PROT_WRITE);
pmap_update(pmap_kernel());
initmsgbuf((caddr_t)msgbufp, round_page(MSGBUFSIZE));
/* Determine the machine type from FUSE ROM data */
get_fuse_rom_data();
if (strncmp(fuse_rom_data, "MNAME=LUNA88K+", 14) == 0) {
machtype = LUNA_88K2;
}
/* Determine the 'auto-boot' device from NVRAM data */
get_nvram_data();
get_autoboot_device();
/*
* Good {morning,afternoon,evening,night}.
*/
printf(version);
identifycpu();
printf("real mem = %d\n", ctob(physmem));
/*
* Check front DIP switch setting
*/
printf("dipsw = 0x%x\n", dipswitch);
/* Check DIP switch 1 - 1 */
if ((0x8000 & dipswitch) == 0) {
boothowto |= RB_SINGLE;
}
/* Check DIP switch 1 - 3 */
if ((0x2000 & dipswitch) == 0) {
boothowto |= RB_ASKNAME;
}
/* Check DIP switch 1 - 4 */
if ((0x1000 & dipswitch) == 0) {
boothowto |= RB_CONFIG;
}
/*
* Check frame buffer depth.
*/
switch (hwplanebits) {
case 0: /* No frame buffer */
case 1:
case 4:
case 8:
break;
default:
printf("unexpected frame buffer depth = %d\n", hwplanebits);
hwplanebits = 0;
break;
}
#if 0 /* just for test */
/*
* Get boot arguments
*/
{
char buf[256];
char **p = (volatile char **)0x00001120;
strncpy(buf, *p, 256);
if (buf[255] != '\0')
buf[255] = '\0';
printf("boot arg: (0x%x) %s\n", *p, buf);
}
#endif
/*
* Find out how much space we need, allocate it,
* and then give everything true virtual addresses.
*/
sz = (int)allocsys((caddr_t)0);
if ((v = (caddr_t)uvm_km_zalloc(kernel_map, round_page(sz))) == 0)
panic("startup: no room for tables");
if (allocsys(v) - v != sz)
panic("startup: table size inconsistency");
/*
* Grab UADDR virtual address
*/
uarea_pages = UADDR;
uvm_map(kernel_map, (vaddr_t *)&uarea_pages, USPACE,
NULL, UVM_UNKNOWN_OFFSET, 0,
UVM_MAPFLAG(UVM_PROT_NONE, UVM_PROT_NONE, UVM_INH_NONE,
UVM_ADV_NORMAL, 0));
if (uarea_pages != UADDR)
panic("uarea_pages %lx: UADDR not free", uarea_pages);
/*
* Grab the OBIO space that we hardwired in pmap_bootstrap
*/
obiova = OBIO_START;
uvm_map(kernel_map, (vaddr_t *)&obiova, OBIO_SIZE,
NULL, UVM_UNKNOWN_OFFSET, 0,
UVM_MAPFLAG(UVM_PROT_NONE, UVM_PROT_NONE, UVM_INH_NONE,
UVM_ADV_NORMAL, 0));
if (obiova != OBIO_START)
panic("obiova %lx: OBIO not free", obiova);
/*
* Now allocate buffers proper. They are different than the above
* in that they usually occupy more virtual memory than physical.
*/
size = MAXBSIZE * nbuf;
if (uvm_map(kernel_map, (vaddr_t *) &buffers, round_page(size),
NULL, UVM_UNKNOWN_OFFSET, 0, UVM_MAPFLAG(UVM_PROT_NONE,
UVM_PROT_NONE, UVM_INH_NONE, UVM_ADV_NORMAL, 0)))
panic("cpu_startup: cannot allocate VM for buffers");
minaddr = (vaddr_t)buffers;
if ((bufpages / nbuf) >= btoc(MAXBSIZE)) {
/* don't want to alloc more physical mem than needed */
bufpages = btoc(MAXBSIZE) * nbuf;
}
base = bufpages / nbuf;
residual = bufpages % nbuf;
for (i = 0; i < nbuf; i++) {
vsize_t curbufsize;
vaddr_t curbuf;
struct vm_page *pg;
/*
* Each buffer has MAXBSIZE bytes of VM space allocated. Of
* that MAXBSIZE space, we allocate and map (base+1) pages
* for the first "residual" buffers, and then we allocate
* "base" pages for the rest.
*/
curbuf = (vaddr_t)buffers + (i * MAXBSIZE);
curbufsize = PAGE_SIZE * ((i < residual) ? (base+1) : base);
while (curbufsize) {
pg = uvm_pagealloc(NULL, 0, NULL, 0);
if (pg == NULL)
panic("cpu_startup: not enough memory for "
"buffer cache");
pmap_kenter_pa(curbuf, VM_PAGE_TO_PHYS(pg),
VM_PROT_READ | VM_PROT_WRITE);
curbuf += PAGE_SIZE;
curbufsize -= PAGE_SIZE;
}
}
pmap_update(pmap_kernel());
/*
* Allocate a submap for exec arguments. This map effectively
* limits the number of processes exec'ing at any time.
*/
exec_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr,
16 * NCARGS, VM_MAP_PAGEABLE, FALSE, NULL);
/*
* Allocate map for physio.
*/
phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr,
VM_PHYS_SIZE, 0, FALSE, NULL);
printf("avail mem = %ld (%d pages)\n", ptoa(uvmexp.free), uvmexp.free);
printf("using %d buffers containing %d bytes of memory\n", nbuf,
bufpages * PAGE_SIZE);
/*
* Set up buffers, so they can be used to read disk labels.
*/
bufinit();
/*
* Initialize the autovectored interrupt list.
*/
isrinit();
/*
* Configure the system.
*/
if (boothowto & RB_CONFIG) {
#ifdef BOOT_CONFIG
user_config();
#else
printf("kernel does not support -c; continuing..\n");
#endif
}
/*
* Say hello to the world on LCD.
*/
greeting();
}
void
cpu_startup()
{
vaddr_t minaddr, maxaddr;
/* Determine the machine type from FUSE ROM data. */
get_fuse_rom_data();
if (strncmp(fuse_rom_data, "MNAME=LUNA88K+", 14) == 0) {
machtype = LUNA_88K2;
}
/* Determine the 'auto-boot' device from NVRAM data */
get_nvram_data();
get_autoboot_device();
/*
* Good {morning,afternoon,evening,night}.
*/
printf(version);
identifycpu();
printf("real mem = %u (%uMB)\n", ptoa(physmem),
ptoa(physmem) / 1024 / 1024);
/*
* Check front DIP switch setting
*/
#ifdef DEBUG
printf("dipsw = 0x%x\n", dipswitch);
#endif
/* Check DIP switch 1 - 1 */
if ((0x8000 & dipswitch) == 0) {
boothowto |= RB_SINGLE;
}
/* Check DIP switch 1 - 3 */
if ((0x2000 & dipswitch) == 0) {
boothowto |= RB_ASKNAME;
}
/* Check DIP switch 1 - 4 */
if ((0x1000 & dipswitch) == 0) {
boothowto |= RB_CONFIG;
}
/*
* Check frame buffer depth.
*/
switch (hwplanebits) {
case 0: /* No frame buffer */
case 1:
case 4:
case 8:
break;
default:
printf("unexpected frame buffer depth = %d\n", hwplanebits);
hwplanebits = 0;
break;
}
#if 0 /* just for test */
/*
* Get boot arguments
*/
{
char buf[256];
char **p = (volatile char **)0x00001120;
strncpy(buf, *p, 256);
if (buf[255] != '\0')
buf[255] = '\0';
printf("boot arg: (0x%x) %s\n", *p, buf);
}
#endif
/*
* Allocate a submap for exec arguments. This map effectively
* limits the number of processes exec'ing at any time.
*/
minaddr = vm_map_min(kernel_map);
exec_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr,
16 * NCARGS, VM_MAP_PAGEABLE, FALSE, NULL);
/*
* Allocate map for physio.
*/
phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr,
VM_PHYS_SIZE, 0, FALSE, NULL);
printf("avail mem = %lu (%luMB)\n", ptoa(uvmexp.free),
ptoa(uvmexp.free) / 1024 / 1024);
/*
* Set up buffers, so they can be used to read disk labels.
*/
bufinit();
/*
* Initialize the autovectored interrupt list.
*/
isrinit();
/*
* Configure the system.
*/
if (boothowto & RB_CONFIG) {
#ifdef BOOT_CONFIG
user_config();
#else
printf("kernel does not support -c; continuing..\n");
#endif
}
}
