uint64_t
pmcgetctr(uint32_t coreno, uint32_t regno)
{
PmcCtr *p;
Mach *mp;
uint64_t v;
if(coreno == machp()->machno){
v = getctr(regno);
if (pmcdebug) {
print("int getctr[%#ux, %#ux] = %#llux\n", regno, coreno, v);
}
return v;
}
mp = sys->machptr[coreno];
p = &mp->pmc[regno];
ilock(&mp->pmclock);
p->ctrset |= PmcGet;
if(shouldipi(mp)){
waitnotstale(mp, p);
ilock(&mp->pmclock);
}
v = p->ctr;
iunlock(&mp->pmclock);
if (pmcdebug) {
print("ext getctr[%#ux, %#ux] = %#llux\n", regno, coreno, v);
}
return v;
}
void
pmcupdate(Mach *m)
{
PmcCtr *p;
int i, maxct, wk;
PmcWait *w;
return;
maxct = pmcnregs();
for (i = 0; i < maxct; i++) {
p = &m->pmc[i];
ilock(&m->pmclock);
if(p->ctrset & PmcSet)
setctr(p->ctr, i);
if(p->ctlset & PmcSet)
setctl(&p->PmcCtl, i);
p->ctr = getctr(i);
getctl(&p->PmcCtl, i);
p->ctrset = PmcIgn;
p->ctlset = PmcIgn;
wk = p->stale;
p->stale = 0;
if(wk){
for(w = p->wq; w != nil; w = w->next){
p->wq = w->next;
wakeup(&w->rend);
pmcwclose(w);
}
}
iunlock(&m->pmclock);
}
}
u64int
pmcgetctr(u32int coreno, u32int regno)
{
PmcCtr *p;
Mach *mp;
u64int v;
if(coreno == m->machno){
v = getctr(regno);
if (pmcdebug) {
print("int getctr[%#ux, %#ux] = %#llux\n", regno, coreno, v);
}
return v;
}
mp = sys->machptr[coreno];
p = &mp->pmc[regno];
ilock(&mp->pmclock);
p->ctrset |= PmcGet;
p->stale = 1;
if(mp->proc != nil || mp->nixtype != NIXAC){
waitnotstale(mp, p);
ilock(&mp->pmclock);
}
v = p->ctr;
iunlock(&mp->pmclock);
if (pmcdebug) {
print("ext getctr[%#ux, %#ux] = %#llux\n", regno, coreno, v);
}
return v;
}
