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name : emulated_ops.h
 /* SPDX-License-Identifier: GPL-2.0-only */
/*
 *  Copyright 2007 Sony Corporation
 */

#ifndef _ASM_POWERPC_EMULATED_OPS_H
#define _ASM_POWERPC_EMULATED_OPS_H

#include <linux/atomic.h>
#include <linux/perf_event.h>


#ifdef CONFIG_PPC_EMULATED_STATS

struct ppc_emulated_entry {
	const char *name;
	atomic_t val;
};

extern struct ppc_emulated {
#ifdef CONFIG_ALTIVEC
	struct ppc_emulated_entry altivec;
#endif
	struct ppc_emulated_entry dcba;
	struct ppc_emulated_entry dcbz;
	struct ppc_emulated_entry fp_pair;
	struct ppc_emulated_entry isel;
	struct ppc_emulated_entry mcrxr;
	struct ppc_emulated_entry mfpvr;
	struct ppc_emulated_entry multiple;
	struct ppc_emulated_entry popcntb;
	struct ppc_emulated_entry spe;
	struct ppc_emulated_entry string;
	struct ppc_emulated_entry sync;
	struct ppc_emulated_entry unaligned;
#ifdef CONFIG_MATH_EMULATION
	struct ppc_emulated_entry math;
#endif
#ifdef CONFIG_VSX
	struct ppc_emulated_entry vsx;
#endif
#ifdef CONFIG_PPC64
	struct ppc_emulated_entry mfdscr;
	struct ppc_emulated_entry mtdscr;
	struct ppc_emulated_entry lq_stq;
	struct ppc_emulated_entry lxvw4x;
	struct ppc_emulated_entry lxvh8x;
	struct ppc_emulated_entry lxvd2x;
	struct ppc_emulated_entry lxvb16x;
#endif
} ppc_emulated;

extern u32 ppc_warn_emulated;

extern void ppc_warn_emulated_print(const char *type);

#define __PPC_WARN_EMULATED(type)					 \
	do {								 \
		atomic_inc(&ppc_emulated.type.val);			 \
		if (ppc_warn_emulated)					 \
			ppc_warn_emulated_print(ppc_emulated.type.name); \
	} while (0)

#else /* !CONFIG_PPC_EMULATED_STATS */

#define __PPC_WARN_EMULATED(type)	do { } while (0)

#endif /* !CONFIG_PPC_EMULATED_STATS */

#define PPC_WARN_EMULATED(type, regs)					\
	do {								\
		perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS,		\
			1, regs, 0);					\
		__PPC_WARN_EMULATED(type);				\
	} while (0)

#define PPC_WARN_ALIGNMENT(type, regs)					\
	do {								\
		perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS,		\
			1, regs, regs->dar);				\
		__PPC_WARN_EMULATED(type);				\
	} while (0)

#endif /* _ASM_POWERPC_EMULATED_OPS_H */
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