arch/powerpc/include/asm/emulated_ops.h

root/arch/powerpc/include/asm/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 */
Linux
