From 71b6b31d13fe18fcff85edfba624919db491b189 Mon Sep 17 00:00:00 2001
From: Miod Vallat <miod@cvs.openbsd.org>
Date: Sun, 6 Mar 2011 16:59:43 +0000
Subject: Make sure MEMORYBARRIER(SYNC_REG) performs a read/write
 bus_space_barrier, instead of a read barrier only, as it is used in
 read-modify-write cycles. ok mjacob

---
 sys/dev/ic/isp_openbsd.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'sys')

diff --git a/sys/dev/ic/isp_openbsd.h b/sys/dev/ic/isp_openbsd.h
index 268c5e36015..a6d627c7af9 100644
--- a/sys/dev/ic/isp_openbsd.h
+++ b/sys/dev/ic/isp_openbsd.h
@@ -1,4 +1,4 @@
-/*      $OpenBSD: isp_openbsd.h,v 1.33 2010/06/26 23:24:44 guenther Exp $ */
+/*      $OpenBSD: isp_openbsd.h,v 1.34 2011/03/06 16:59:42 miod Exp $ */
 /*
  * OpenBSD Specific definitions for the QLogic ISP Host Adapter
  */
@@ -170,7 +170,7 @@ case SYNC_SFORCPU:						\
 case SYNC_REG:							\
 	bus_space_barrier(isp->isp_bus_tag,			\
 	    isp->isp_bus_handle, offset, size, 			\
-	    BUS_SPACE_BARRIER_READ);				\
+	    BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);	\
 	break;							\
 default:							\
 	break;							\
-- 
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