[SPARC64]: Do not try to write to %tick or %stick on SUN4V.

Writes by privileged code are disallowed.  The hypervisor manages
the non-privileged bit.
Signed-off-by: David S. Miller <davem@davemloft.net>

arch/sparc64/kernel/time.c

@@ -193,6 +193,11 @@ struct sparc64_tick_ops *tick_ops __read_mostly = &tick_operations;
 
 static void stick_init_tick(unsigned long offset)
 {
+	/* Writes to the %tick and %stick register are not
+	 * allowed on sun4v.  The Hypervisor controls that
+	 * bit, per-strand.
+	 */
+	if (tlb_type != hypervisor) {
 		tick_disable_protection();
 
 		/* Let the user get at STICK too. */
@@ -203,6 +208,7 @@ static void stick_init_tick(unsigned long offset)
 		: /* no outputs */
 		: "r" (TICK_PRIV_BIT)
 		: "g1", "g2");
+	}
 
 	__asm__ __volatile__(
 	"	rd	%%asr24, %%g1\n"