Merge branch 'fixes-for-linus' of git://git.monstr.eu/linux-2.6-micro…

…blaze * 'fixes-for-linus' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Clear sticky FSR register after saving it to func parametr microblaze: UMS is used only for MMU kernel
mariux64 · Oct 5, 2009 · e8d809c · e8d809c
2 parents ef790fe + 131e4e9
commit e8d809c
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Showing 3 changed files with 5 additions and 1 deletion.
diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S
@@ -592,6 +592,8 @@ C_ENTRY(full_exception_trap):
 	nop
 	mfs	r7, rfsr;		/* save FSR */
 	nop
+	mts	rfsr, r0;	/* Clear sticky fsr */
+	nop
 	la	r12, r0, full_exception
 	set_vms;
 	rtbd	r12, 0;

diff --git a/arch/microblaze/kernel/hw_exception_handler.S b/arch/microblaze/kernel/hw_exception_handler.S
@@ -384,7 +384,7 @@ handle_other_ex: /* Handle Other exceptions here */
 	addk	r8, r17, r0; /* Load exception address */
 	bralid	r15, full_exception; /* Branch to the handler */
 	nop;
-	mts	r0, rfsr;	/* Clear sticky fsr */
+	mts	rfsr, r0;	/* Clear sticky fsr */
 	nop
 
 	/*

diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
@@ -235,7 +235,9 @@ void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long usp)
 	regs->pc = pc;
 	regs->r1 = usp;
 	regs->pt_mode = 0;
+#ifdef CONFIG_MMU
 	regs->msr |= MSR_UMS;
+#endif
 }
 
 #ifdef CONFIG_MMU