Disintegrate asm/system.h for SH

Disintegrate asm/system.h for SH.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-sh@vger.kernel.org

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 */