Release 4.14 arch/sh/include/asm/traps_32.h

/* SPDX-License-Identifier: GPL-2.0 */
#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)
        );
}

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asmlinkage void do_address_error(struct pt_regs *regs,
				 unsigned long writeaccess,
				 unsigned long address);
asmlinkage void do_divide_error(unsigned long r4);
asmlinkage void do_reserved_inst(void);
asmlinkage void do_illegal_slot_inst(void);
asmlinkage void do_exception_error(void);


#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 */
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Directory: arch/sh/include/asm

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