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Commit da233552 authored by Michal Simek's avatar Michal Simek
Browse files

microblaze: Save kernel mode in delay slot 



This change save one instruction if kernel comes from kernel
space.

Signed-off-by: default avatarMichal Simek <monstr@monstr.eu>
parent e7741075

arch/microblaze/kernel/entry.S

+1 −2
Original line number Diff line number Diff line
@@ -282,9 +282,8 @@ 
	tophys(r1,r1);							\

	addik	r1, r1, -STATE_SAVE_SIZE; /* Make room on the stack.  */\

	SAVE_REGS							\

	swi	r1, r1, PTO+PT_MODE; 	 				\

	brid	2f;							\

	nop;				/* Fill delay slot */		\

	swi	r1, r1, PTO+PT_MODE; 	 				\

1:	/* User-mode state save.  */					\

	lwi	r1, r0, TOPHYS(PER_CPU(CURRENT_SAVE)); /* get saved current */\

	tophys(r1,r1);							\