svn commit: r227492 - projects/armv6/sys/arm/arm

[Olivier Houchard]

Author: cognet
Date: Sun Nov 13 21:36:20 2011
New Revision: 227492
URL: http://svn.freebsd.org/changeset/base/227492

Log:
  Use isb at the end of the various i-cache syncing routines, just to be sure.
  
  Suggested by:	Mark Tinguely <marktinguely aT gmail dOt com>

Modified:
  projects/armv6/sys/arm/arm/cpufunc_asm_armv7.S

Modified: projects/armv6/sys/arm/arm/cpufunc_asm_armv7.S
==============================================================================
--- projects/armv6/sys/arm/arm/cpufunc_asm_armv7.S	Sun Nov 13 17:07:43 2011	(r227491)
+++ projects/armv6/sys/arm/arm/cpufunc_asm_armv7.S	Sun Nov 13 21:36:20 2011	(r227492)
@@ -197,6 +197,7 @@ ENTRY(armv7_idcache_wbinv_range)
 	add	r0, r0, ip
 	subs	r1, r1, ip
 	bhi	.Larmv7_id_wbinv_next
+	isb				/* instruction synchronization barrier */
 	dsb				/* data synchronization barrier */
 	RET
 
@@ -208,6 +209,7 @@ ENTRY_NP(armv7_icache_sync_range)
 	add	r0, r0, ip
 	subs	r1, r1, ip
 	bhi	.Larmv7_sync_next
+	isb				/* instruction synchronization barrier */
 	dsb				/* data synchronization barrier */
 	RET