shithub: n900

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9: drop the probeaddr() bullshit

not even used, and this isn't the correct way of doing things.
figure out how to talk to the pmu and actually turn the hardware on
instead of guessing about if it works.

--- a/sys/src/9/omap/fns.h

+++ b/sys/src/9/omap/fns.h

@@ -13,7 +13,6 @@

 int tas(void *);

 void evenaddr(uintptr a);

-int probeaddr(uintptr a);

 void procrestore(Proc *);

 void procsave(Proc *);

 void procsetup(Proc *);

--- a/sys/src/9/omap/trap.c

+++ b/sys/src/9/omap/trap.c

@@ -8,9 +8,6 @@

 #include "tos.h"

 #include "ureg.h"

-static volatile int probing;

-static volatile int probed;

-

 void

 callwithureg(void (*f) (Ureg *))

 {

@@ -342,12 +339,6 @@

 	case PsrMdabt:

 		ureg->pc -= 8;

-		if(probing && !user) {

-			ureg->pc += 4;

-			probed = 0;

-			goto out;

-		}

-

 		fpukenter(ureg);

 		traparm(ureg, getdfsr(), getdfar());

 		break;

@@ -411,26 +402,4 @@

 	kexit(ureg);

 	fpukexit(ureg);

-}

-

-int

-probeaddr(uintptr a)

-{

-	static Lock l;

-	volatile ulong v;

-

-	ilock(&l);

-	probing = 1;

-	probed = 1;

-

-	v = *(ulong*)a;

-

-	coherence();

-	if(!probed) {

-		iunlock(&l);

-		return 0;

-	}

-

-	iunlock(&l);

-	return 1;

 }

-- 

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