From e2ba743711283aac14dd37fb281817decbb80879 Mon Sep 17 00:00:00 2001
From: Robert Noland <rnoland@FreeBSD.org>
Date: Tue, 1 Sep 2009 16:41:28 +0000
Subject: [PATCH] MFC 196643

Swap the start/end virtual addresses in pmap_invalidate_cache_range().

This fixes the functionality on non SelfSnoop hardware.

Found by:	rnoland
Submitted by:	alc
Reviewed by:	kib
Approved by:	re (rwatson)
---
 sys/amd64/amd64/pmap.c | 4 ++--
 sys/i386/i386/pmap.c   | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/sys/amd64/amd64/pmap.c b/sys/amd64/amd64/pmap.c
index b9eee49c97c..f0da536a012 100644
--- a/sys/amd64/amd64/pmap.c
+++ b/sys/amd64/amd64/pmap.c
@@ -943,8 +943,8 @@ pmap_invalidate_cache_range(vm_offset_t sva, vm_offset_t eva)
 		 * coherence domain.
 		 */
 		mfence();
-		for (; eva < sva; eva += cpu_clflush_line_size)
-			clflush(eva);
+		for (; sva < eva; sva += cpu_clflush_line_size)
+			clflush(sva);
 		mfence();
 	} else {
 
diff --git a/sys/i386/i386/pmap.c b/sys/i386/i386/pmap.c
index c6f1d5fe2a4..405cbd30cfe 100644
--- a/sys/i386/i386/pmap.c
+++ b/sys/i386/i386/pmap.c
@@ -967,8 +967,8 @@ pmap_invalidate_cache_range(vm_offset_t sva, vm_offset_t eva)
 		 * coherence domain.
 		 */
 		mfence();
-		for (; eva < sva; eva += cpu_clflush_line_size)
-			clflush(eva);
+		for (; sva < eva; sva += cpu_clflush_line_size)
+			clflush(sva);
 		mfence();
 	} else {