MIPS: branch: New helpers to modify branch delay slot flag in struct pt_regs

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

MIPS: branch: New helpers to modify branch delay slot flag in struct pt_regs
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
5a7ebbf8 · Ralf Baechle · 2209bcb1 · 5a7ebbf8
Commit 5a7ebbf8 authored Apr 16, 2014 by Ralf Baechle
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arch/mips/include/asm/branch.h arch/mips/include/asm/branch.h +10 -0

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--- a/arch/mips/include/asm/branch.h
+++ b/arch/mips/include/asm/branch.h
@@ -24,6 +24,16 @@ static inline int delay_slot(struct pt_regs *regs)
 	return regs->cp0_cause & CAUSEF_BD;
 }

+static inline void clear_delay_slot(struct pt_regs *regs)
+{
+	regs->cp0_cause &= ~CAUSEF_BD;
+}
+
+static inline void set_delay_slot(struct pt_regs *regs)
+{
+	regs->cp0_cause |= CAUSEF_BD;
+}
+
 static inline unsigned long exception_epc(struct pt_regs *regs)
 {
 	if (likely(!delay_slot(regs)))