svn commit: r196737 - in stable/8/sys: . amd64/amd64 amd64/include/xen cddl/contrib/opensolaris contrib/dev/acpica contrib/pf dev/xen/xenpci i386/i386

[Robert Noland]

Author: rnoland
Date: Tue Sep  1 16:41:28 2009
New Revision: 196737
URL: http://svn.freebsd.org/changeset/base/196737

Log:
  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)

Modified:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/amd64/pmap.c
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)
  stable/8/sys/dev/xen/xenpci/   (props changed)
  stable/8/sys/i386/i386/pmap.c

Modified: stable/8/sys/amd64/amd64/pmap.c
==============================================================================
--- stable/8/sys/amd64/amd64/pmap.c	Tue Sep  1 15:51:36 2009	(r196736)
+++ stable/8/sys/amd64/amd64/pmap.c	Tue Sep  1 16:41:28 2009	(r196737)
@@ -943,8 +943,8 @@ pmap_invalidate_cache_range(vm_offset_t 
 		 * 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 {
 

Modified: stable/8/sys/i386/i386/pmap.c
==============================================================================
--- stable/8/sys/i386/i386/pmap.c	Tue Sep  1 15:51:36 2009	(r196736)
+++ stable/8/sys/i386/i386/pmap.c	Tue Sep  1 16:41:28 2009	(r196737)
@@ -967,8 +967,8 @@ pmap_invalidate_cache_range(vm_offset_t 
 		 * 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 {