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pc kernel: avoid AP's spinning in syncclock(), don't wait for thunderbirdsargo

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This commit is contained in:
cinap_lenrek 2017-03-11 16:24:56 +01:00
parent 812383473c
commit 5104934135
2 changed files with 12 additions and 30 deletions
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23
sys/src/9/pc/squidboy.c
View file

@ -12,30 +12,17 @@ static void
squidboy(Apic* apic)
{
// iprint("Hello Squidboy\n");
machinit();
mmuinit();
cpuidentify();
cpuidprint();
syncclock();
active.machs[m->machno] = 1;
apic->online = 1;
coherence();
lapicinit(apic);
lapiconline();
syncclock();
timersinit();
fpoff();
lock(&active);
active.machs[m->machno] = 1;
unlock(&active);
while(!active.thunderbirdsarego)
microdelay(100);
schedinit();
}
@ -107,10 +94,12 @@ mpstartap(Apic* apic)
nvramwrite(0x0F, 0x0A); /* shutdown code: warm reset upon init ipi */
lapicstartap(apic, PADDR(APBOOTSTRAP));
for(i = 0; i < 1000; i++){
for(i = 0; i < 100000; i++){
if(arch->fastclock == tscticks)
cycles(&m->tscticks); /* for ap's syncclock(); */
if(apic->online)
break;
delay(10);
delay(1);
}
nvramwrite(0x0F, 0x00);
}

19
sys/src/9/pc64/squidboy.c
View file

@ -15,21 +15,12 @@ squidboy(Apic* apic)
mmuinit();
cpuidentify();
cpuidprint();
syncclock();
active.machs[m->machno] = 1;
apic->online = 1;
coherence();
lapicinit(apic);
lapiconline();
syncclock();
timersinit();
lock(&active);
active.machs[m->machno] = 1;
unlock(&active);
while(!active.thunderbirdsarego)
microdelay(100);
schedinit();
}
@ -102,10 +93,12 @@ mpstartap(Apic* apic)
nvramwrite(0x0F, 0x0A); /* shutdown code: warm reset upon init ipi */
lapicstartap(apic, PADDR(APBOOTSTRAP));
for(i = 0; i < 1000; i++){
for(i = 0; i < 100000; i++){
if(arch->fastclock == tscticks)
cycles(&m->tscticks); /* for ap's syncclock(); */
if(apic->online)
break;
delay(10);
delay(1);
}
nvramwrite(0x0F, 0x00);
}