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Commit 841d6e8c authored by Michal Simek's avatar Michal Simek
Browse files

microblaze: entry.S use delay slot for return handlers 



Signed-off-by: default avatarMichal Simek <monstr@monstr.eu>
parent 8633bebc

arch/microblaze/kernel/entry.S

+3 −6
Original line number Diff line number Diff line
@@ -414,10 +414,9 @@ C_ENTRY(ret_from_trap): 
	beqi	r11, 1f;		/* Signals to handle, handle them */



	la	r5, r1, PTO;		/* Arg 1: struct pt_regs *regs */

	add	r6, r0, r0;		/* Arg 2: sigset_t *oldset */

	addi	r7, r0, 1;		/* Arg 3: int in_syscall */

	bralid	r15, do_signal;	/* Handle any signals */

	nop;

	add	r6, r0, r0;		/* Arg 2: sigset_t *oldset */



/* Finally, return to user state.  */

1:
@@ -692,10 +691,9 @@ C_ENTRY(ret_from_exc): 
	 * store return registers separately because this macros is use

	 * for others exceptions */

	la	r5, r1, PTO;		/* Arg 1: struct pt_regs *regs */

	add	r6, r0, r0;		/* Arg 2: sigset_t *oldset */

	addi	r7, r0, 0;		/* Arg 3: int in_syscall */

	bralid	r15, do_signal;	/* Handle any signals */

	nop;

	add	r6, r0, r0;		/* Arg 2: sigset_t *oldset */



/* Finally, return to user state.  */

1:	swi	r0, r0, PER_CPU(KM);	/* Now officially in user state. */
@@ -968,10 +966,9 @@ dbtrap_call: rtbd r11, 0; 
	   (in a possibly modified form) after do_signal returns.  */



	la	r5, r1, PTO;		/* Arg 1: struct pt_regs *regs */

	add	r6, r0, r0;		/* Arg 2: sigset_t *oldset */

	addi  r7, r0, 0;	/* Arg 3: int in_syscall */

	bralid	r15, do_signal;	/* Handle any signals */

	nop;

	add	r6, r0, r0;		/* Arg 2: sigset_t *oldset */





/* Finally, return to user state.  */