From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 15 Apr 2014 23:52:32 +0000 (+0200)
Subject: MIPS: branch: New helpers to modify branch delay slot flag in struct pt_regs
X-Git-Tag: next-20140530~108^2~61
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=5a7ebbf89395392f16cb5dd342b7edd154ca2d11;p=karo-tx-linux.git

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

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

diff --git a/arch/mips/include/asm/branch.h b/arch/mips/include/asm/branch.h
index e28a3e0eb3cb..c842e7de21c7 100644
--- 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)))