1 files changed, 68 insertions, 0 deletions

diff --git a/arch/sh/include/asm/traps_32.h b/arch/sh/include/asm/traps_32.h
new file mode 100644
index 000000000000..cfd55ff9dff2
--- /dev/null
+++ b/arch/sh/include/asm/traps_32.h
@@ -0,0 +1,68 @@
+#ifndef __ASM_SH_TRAPS_32_H
+#define __ASM_SH_TRAPS_32_H
+
+#include <linux/types.h>
+#include <asm/mmu.h>
+
+#ifdef CONFIG_CPU_HAS_SR_RB
+#define lookup_exception_vector()       \
+({                                      \
+        unsigned long _vec;             \
+                                        \
+        __asm__ __volatile__ (          \
+                "stc r2_bank, %0\n\t"   \
+                : "=r" (_vec)           \
+        );                              \
+                                        \
+        _vec;                           \
+})
+#else
+#define lookup_exception_vector()       \
+({                                      \
+        unsigned long _vec;             \
+        __asm__ __volatile__ (          \
+                "mov r4, %0\n\t"        \
+                : "=r" (_vec)           \
+        );                              \
+                                        \
+        _vec;                           \
+})
+#endif
+
+static inline void trigger_address_error(void)
+{
+        __asm__ __volatile__ (
+                "ldc %0, sr\n\t"
+                "mov.l @%1, %0"
+                :
+                : "r" (0x10000000), "r" (0x80000001)
+        );
+}
+
+asmlinkage void do_address_error(struct pt_regs *regs,
+                                 unsigned long writeaccess,
+                                 unsigned long address);
+asmlinkage void do_divide_error(unsigned long r4, unsigned long r5,
+                                unsigned long r6, unsigned long r7,
+                                struct pt_regs __regs);
+asmlinkage void do_reserved_inst(unsigned long r4, unsigned long r5,
+                                unsigned long r6, unsigned long r7,
+                                struct pt_regs __regs);
+asmlinkage void do_illegal_slot_inst(unsigned long r4, unsigned long r5,
+                                unsigned long r6, unsigned long r7,
+                                struct pt_regs __regs);
+asmlinkage void do_exception_error(unsigned long r4, unsigned long r5,
+                                   unsigned long r6, unsigned long r7,
+                                   struct pt_regs __regs);
+
+#define BUILD_TRAP_HANDLER(name)                                        \
+asmlinkage void name##_trap_handler(unsigned long r4, unsigned long r5, \
+                                    unsigned long r6, unsigned long r7, \
+                                    struct pt_regs __regs)
+
+#define TRAP_HANDLER_DECL                               \
+        struct pt_regs *regs = RELOC_HIDE(&__regs, 0);  \
+        unsigned int vec = regs->tra;                   \
+        (void)vec;
+
+#endif /* __ASM_SH_TRAPS_32_H */