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, 19 deletions

diff --git a/sys/src/9/zynq/main.c b/sys/src/9/zynq/main.c
index ce2a0c259..92a650e59 100644
--- a/sys/src/9/zynq/main.c
+++ b/sys/src/9/zynq/main.c
@@ -43,9 +43,6 @@ procfork(Proc *p)
 {
 	ulong s;
 
-	p->kentry = up->kentry;
-	p->pcycles = -p->kentry;
-	
 	s = splhi();
 	switch(up->fpstate & ~FPillegal){
 	case FPactive:
@@ -63,22 +60,6 @@ procsetup(Proc *p)
 {
 	p->fpstate = FPinit;
 	fpoff();
-	
-	cycles(&p->kentry);
-	p->pcycles = -p->kentry;
-}
-
-void
-kexit(Ureg *)
-{
-	Tos *tos;
-	uvlong t;
-
-	tos = (Tos*)(USTKTOP-sizeof(Tos));
-	cycles(&t);
-	tos->kcycles += t - up->kentry;
-	tos->pcycles = t + up->pcycles;
-	tos->pid = up->pid;
 }
 
 ulong *l2;