static void
squidboy(Apic* apic)
{
// iprint("Hello Squidboy\n");
machinit();
fpsavealloc();
mmuinit();
cpuidentify();
cpuidprint();
checkmtrr();
apic->online = 1;
coherence();
lapicinit(apic);
lapiconline();
syncclock();
timersinit();
fpoff();
lock(&active);
active.machs |= 1<<m->machno;
unlock(&active);
while(!active.thunderbirdsarego)
microdelay(100);
schedinit();
}
static void
squidboy(Apic* apic)
{
// iprint("Hello Squidboy\n");
machinit();
mmuinit();
cpuidentify();
cpuidprint();
checkmtrr();
lock(&mprdthilock);
mprdthi |= (1<<apic->apicno)<<24;
unlock(&mprdthilock);
lapicinit(apic);
lapiconline();
syncclock();
timersinit();
fpoff();
lock(&active);
active.machs |= 1<<m->machno;
unlock(&active);
while(!active.thunderbirdsarego)
microdelay(100);
schedinit();
}
void
userinit(void)
{
Proc *p;
p = newproc();
p->pgrp = newpgrp();
p->egrp = smalloc(sizeof(Egrp));
p->egrp->ref = 1;
p->fgrp = dupfgrp(nil);
p->rgrp = newrgrp();
p->procmode = 0640;
kstrdup(&eve, "");
kstrdup(&p->text, "*init*");
kstrdup(&p->user, eve);
p->fpstate = FPinit;
fpoff();
/*
* Kernel Stack
*
* N.B. make sure there's enough space for syscall to check
* for valid args and
* 4 bytes for gotolabel's return PC
*/
p->sched.pc = (ulong)init0;
p->sched.sp = (ulong)p->kstack+KSTACK-(sizeof(Sargs)+BY2WD);
/* NB: no user stack nor text segments are set up */
ready(p);
}
/*
* set up floating point for a new process
*/
void
procsetup(Proc *p)
{
p->fpstate = FPinit;
fpoff();
cycles(&p->kentry);
p->pcycles = -p->kentry;
memset(p->gdt, 0, sizeof(p->gdt));
p->ldt = nil;
p->nldt = 0;
}
long
execregs(ulong entry, ulong ssize, ulong nargs)
{
ulong *sp;
Ureg *ureg;
up->fpstate = FPinit;
fpoff();
sp = (ulong*)(USTKTOP - ssize);
*--sp = nargs;
ureg = up->dbgreg;
ureg->usp = (ulong)sp;
ureg->pc = entry;
return USTKTOP-sizeof(Tos); /* address of kernel/user shared data */
}
void
machinit(void)
{
Mach *m0;
if (m == 0) {
serialputc('?');
serialputc('m');
serialputc('0');
}
if(machaddr[m->machno] != m) {
serialputc('?');
serialputc('m');
serialputc('m');
}
if (canlock(&testlock)) {
serialputc('?');
serialputc('l');
panic("cpu%d: locks don't work", m->machno);
}
m->ticks = 1;
m->perf.period = 1;
m0 = MACHP(0);
if (m->machno != 0) {
/* synchronise with cpu 0 */
m->ticks = m0->ticks;
m->fastclock = m0->fastclock;
m->cpuhz = m0->cpuhz;
m->delayloop = m0->delayloop;
}
if (m->machno != 0 &&
(m->fastclock == 0 || m->cpuhz == 0 || m->delayloop == 0))
panic("buggered cpu 0 Mach");
machon(m->machno);
fpoff();
}
/*
* set up floating point for a new process
*/
void
procsetup(Proc*p)
{
p->fpstate = FPinit;
fpoff();
}
void
userinit(void)
{
void *v;
Proc *p;
Segment *s;
Page *pg;
p = newproc();
p->pgrp = newpgrp();
p->egrp = smalloc(sizeof(Egrp));
p->egrp->ref = 1;
p->fgrp = dupfgrp(nil);
p->rgrp = newrgrp();
p->procmode = 0640;
kstrdup(&eve, "");
kstrdup(&p->text, "*init*");
kstrdup(&p->user, eve);
p->fpstate = FPinit;
fpoff();
/*
* Kernel Stack
*
* N.B. make sure there's enough space for syscall to check
* for valid args and
* 4 bytes for gotolabel's return PC
*/
p->sched.pc = (ulong)init0;
p->sched.sp = (ulong)p->kstack+KSTACK-(sizeof(Sargs)+BY2WD);
/*
* User Stack
*
* N.B. cannot call newpage() with clear=1, because pc kmap
* requires up != nil. use tmpmap instead.
*/
s = newseg(SG_STACK, USTKTOP-USTKSIZE, USTKSIZE/BY2PG);
p->seg[SSEG] = s;
pg = newpage(0, 0, USTKTOP-BY2PG);
v = tmpmap(pg);
memset(v, 0, BY2PG);
segpage(s, pg);
bootargs(v);
tmpunmap(v);
/*
* Text
*/
s = newseg(SG_TEXT, UTZERO, 1);
s->flushme++;
p->seg[TSEG] = s;
pg = newpage(0, 0, UTZERO);
memset(pg->cachectl, PG_TXTFLUSH, sizeof(pg->cachectl));
segpage(s, pg);
v = tmpmap(pg);
memset(v, 0, BY2PG);
memmove(v, initcode, sizeof initcode);
tmpunmap(v);
ready(p);
}
