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yaml --- r: 204663 b: refs/heads/master c: b318067 h: refs/heads/master i: 204661: 213c10f 204659: 7763dfe 204655: 377bcef v: v3
git-mirror · Aug 4, 2010 · 4124fcc · 4124fcc
1 parent 429b849
commit 4124fcc
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Showing 2 changed files with 16 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 77f6d226050e2d8f046e268a9f84ec834172f0de
+refs/heads/master: b318067e2c946a560035faf47e24a20e50696cce
diff --git a/trunk/arch/microblaze/kernel/entry.S b/trunk/arch/microblaze/kernel/entry.S
@@ -91,6 +91,11 @@
 	nop
 	.endm
 
+	.macro	clear_ums
+	msrclr	r11, MSR_UMS
+	nop
+	.endm
+
 	.macro	clear_vms_ums
 	msrclr	r11, MSR_VMS | MSR_UMS
 	nop
@@ -162,6 +167,14 @@
 	nop
 	.endm
 
+	.macro	clear_ums
+	mfs	r11, rmsr
+	nop
+	andni	r11, r11, MSR_UMS
+	mts	rmsr,r11
+	nop
+	.endm
+
 	.macro	clear_vms_ums
 	mfs	r11, rmsr
 	nop
@@ -526,6 +539,8 @@ C_ENTRY(sys_rt_sigreturn_wrapper):
 	swi	r0, r1, PTO + PT_MODE; /* Was in user-mode.  */		\
 	lwi	r11, r0, TOPHYS(PER_CPU(ENTRY_SP));			\
 	swi	r11, r1, PTO+PT_R1; /* Store user SP.  */		\
+	/* MS: I am clearing UMS even in case when I come from kernel space */ \
+	clear_ums; 							\
 2:	lwi	CURRENT_TASK, r0, TOPHYS(PER_CPU(CURRENT_SAVE));
 
 C_ENTRY(full_exception_trap):