svn commit: r207134 - head/sys/mips/mips

[Juli Mallett]

Author: jmallett
Date: Fri Apr 23 19:48:31 2010
New Revision: 207134
URL: http://svn.freebsd.org/changeset/base/207134

Log:
  Build some nops into CLEAR_STATUS here to make sure that the following
  instructions can't be interrupted.

Modified:
  head/sys/mips/mips/exception.S

Modified: head/sys/mips/mips/exception.S
==============================================================================
--- head/sys/mips/mips/exception.S	Fri Apr 23 19:35:07 2010	(r207133)
+++ head/sys/mips/mips/exception.S	Fri Apr 23 19:48:31 2010	(r207134)
@@ -230,13 +230,15 @@ SlowFault:
 	or      a0, a0, a2	        ; \
 	li      a2, ~(MIPS_SR_INT_IE | MIPS_SR_EXL | SR_KSU_USER)   ; \
 	and     a0, a0, a2              ; \
-        mtc0    a0, COP_0_STATUS_REG    
+        mtc0    a0, COP_0_STATUS_REG    ; \
+	ITLBNOPFIX
 #else
 #define CLEAR_STATUS \
 	mfc0    a0, COP_0_STATUS_REG    ;\
 	li      a2, ~(MIPS_SR_INT_IE | MIPS_SR_EXL | SR_KSU_USER)   ; \
 	and     a0, a0, a2              ; \
-	mtc0	a0, COP_0_STATUS_REG
+	mtc0	a0, COP_0_STATUS_REG	; \
+	ITLBNOPFIX
 #endif
 
 /*