---

yaml --- r: 21419 b: refs/heads/master c: 7aa6264 h: refs/heads/master i: 21417: f9c5760 21415: f71b0c7 v: v3
git-mirror · Mar 20, 2006 · dceaffa · dceaffa
1 parent 57e5832
commit dceaffa
Show file tree

Hide file tree

Showing 2 changed files with 17 additions and 11 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b5a37e96b8dc067b979e44c4e109c9bc49c2f4d8
+refs/heads/master: 7aa6264543f19ceea9b5f386242917296d63be05
diff --git a/trunk/arch/sparc64/kernel/time.c b/trunk/arch/sparc64/kernel/time.c
@@ -193,16 +193,22 @@ struct sparc64_tick_ops *tick_ops __read_mostly = &tick_operations;
 
 static void stick_init_tick(unsigned long offset)
 {
-	tick_disable_protection();
-
-	/* Let the user get at STICK too. */
-	__asm__ __volatile__(
-	"	rd	%%asr24, %%g2\n"
-	"	andn	%%g2, %0, %%g2\n"
-	"	wr	%%g2, 0, %%asr24"
-	: /* no outputs */
-	: "r" (TICK_PRIV_BIT)
-	: "g1", "g2");
+	/* 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. */
+		__asm__ __volatile__(
+		"	rd	%%asr24, %%g2\n"
+		"	andn	%%g2, %0, %%g2\n"
+		"	wr	%%g2, 0, %%asr24"
+		: /* no outputs */
+		: "r" (TICK_PRIV_BIT)
+		: "g1", "g2");
+	}
 
 	__asm__ __volatile__(
 	"	rd	%%asr24, %%g1\n"