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authorRalf Baechle <ralf@linux-mips.org>2008-09-16 21:48:51 +0400
committerRalf Baechle <ralf@linux-mips.org>2008-10-11 19:18:52 +0400
commit384740dc49ea651ba350704d13ff6be9976e37fe (patch)
treea6e80cad287ccae7a86d81bfa692fc96889c88ed /arch/mips/include/asm/branch.h
parente8c7c482347574ecdd45c43e32c332d5fc2ece61 (diff)
downloadlinux-384740dc49ea651ba350704d13ff6be9976e37fe.tar.xz
MIPS: Move headfiles to new location below arch/mips/include
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/branch.h')
-rw-r--r--arch/mips/include/asm/branch.h38
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/mips/include/asm/branch.h b/arch/mips/include/asm/branch.h
new file mode 100644
index 000000000000..37c6857c8d4a
--- /dev/null
+++ b/arch/mips/include/asm/branch.h
@@ -0,0 +1,38 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1996, 1997, 1998, 2001 by Ralf Baechle
+ */
+#ifndef _ASM_BRANCH_H
+#define _ASM_BRANCH_H
+
+#include <asm/ptrace.h>
+
+static inline int delay_slot(struct pt_regs *regs)
+{
+ return regs->cp0_cause & CAUSEF_BD;
+}
+
+static inline unsigned long exception_epc(struct pt_regs *regs)
+{
+ if (!delay_slot(regs))
+ return regs->cp0_epc;
+
+ return regs->cp0_epc + 4;
+}
+
+extern int __compute_return_epc(struct pt_regs *regs);
+
+static inline int compute_return_epc(struct pt_regs *regs)
+{
+ if (!delay_slot(regs)) {
+ regs->cp0_epc += 4;
+ return 0;
+ }
+
+ return __compute_return_epc(regs);
+}
+
+#endif /* _ASM_BRANCH_H */