From: visa <visa@openbsd.org>
Date: Sun, 11 Jun 2017 03:03:05 +0000 (+0000)
Subject: Add a memory barrier to ensure that stores become visible
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=68be5be646b1fcc53604924fa7332b35b785e0f4;p=openbsd

Add a memory barrier to ensure that stores become visible
in a proper order.
---

diff --git a/sys/arch/octeon/octeon/machdep.c b/sys/arch/octeon/octeon/machdep.c
index 98db3860c0c..cddcd12c159 100644
--- a/sys/arch/octeon/octeon/machdep.c
+++ b/sys/arch/octeon/octeon/machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: machdep.c,v 1.88 2017/04/30 16:45:45 mpi Exp $ */
+/*	$OpenBSD: machdep.c,v 1.89 2017/06/11 03:03:05 visa Exp $ */
 
 /*
  * Copyright (c) 2009, 2010 Miodrag Vallat.
@@ -851,8 +851,11 @@ hw_cpu_boot_secondary(struct cpu_info *ci)
 	if (kstack == 0)
 		panic("unable to allocate idle stack\n");
 	ci->ci_curprocpaddr = (void *)kstack;
+
 	cpu_spinup_a0 = (uint64_t)ci;
 	cpu_spinup_sp = (uint64_t)(kstack + USPACE);
+	mips_sync();
+
 	cpu_spinup_mask = (uint32_t)ci->ci_cpuid;
 
 	while (!cpuset_isset(&cpus_running, ci))