kernel: handle tos and per process pcycle counters in port/

we might as well handle the per process cycle
counter in the portable part instead of duplicating the code
in every arch and have inconsistent implementations.

we now have a portable kenter() and kexit() function,
that is ment to be used in trap/syscall from user,
which updates the counters.

some kernels missed initializing Mach.cyclefreq.

1 files changed, 0 insertions, 17 deletions

diff --git a/sys/src/9/ppc/main.c b/sys/src/9/ppc/main.c
index 1eaabe8f7..1dcd9ab22 100644
--- a/sys/src/9/ppc/main.c
+++ b/sys/src/9/ppc/main.c
@@ -186,28 +186,16 @@ void
 procsetup(Proc *p)
 {
 	p->fpstate = FPinit;
-
-	cycles(&p->kentry);
-	p->pcycles = -p->kentry;
 }
 
 void
 procfork(Proc *p)
 {
-	p->kentry = up->kentry;
-	p->pcycles = -p->kentry;
 }
 
 void
 procrestore(Proc *p)
 {
-	uvlong t;
-
-	if(p->kp)
-		return;
-	cycles(&t);
-	p->pcycles -= t;
-	p->kentry += t;
 }
 
 /*
@@ -216,11 +204,6 @@ procrestore(Proc *p)
 void
 procsave(Proc *p)
 {
-	uvlong t;
-
-	cycles(&t);
-	p->pcycles += t;
-	p->kentry -= t;
 	if(p->fpstate == FPactive){
 		if(p->state != Moribund)
 			fpsave(up->fpsave);