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Current File : /proc/self/root/usr/src/linux-headers-6.8.0-45/arch/powerpc/include/asm//pmc.h
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * pmc.h
 * Copyright (C) 2004  David Gibson, IBM Corporation
 */
#ifndef _POWERPC_PMC_H
#define _POWERPC_PMC_H
#ifdef __KERNEL__

#include <asm/ptrace.h>

typedef void (*perf_irq_t)(struct pt_regs *);
extern perf_irq_t perf_irq;

int reserve_pmc_hardware(perf_irq_t new_perf_irq);
void release_pmc_hardware(void);
void ppc_enable_pmcs(void);

#ifdef CONFIG_PPC_BOOK3S_64
#include <asm/lppaca.h>
#include <asm/firmware.h>

static inline void ppc_set_pmu_inuse(int inuse)
{
#if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_BOOK3S_HV_POSSIBLE)
	if (firmware_has_feature(FW_FEATURE_LPAR)) {
#ifdef CONFIG_PPC_PSERIES
		get_lppaca()->pmcregs_in_use = inuse;
#endif
	}
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
	get_paca()->pmcregs_in_use = inuse;
#endif
#endif
}

#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
static inline int ppc_get_pmu_inuse(void)
{
	return get_paca()->pmcregs_in_use;
}
#endif

extern void power4_enable_pmcs(void);

#else /* CONFIG_PPC64 */

static inline void ppc_set_pmu_inuse(int inuse) { }

#endif

#endif /* __KERNEL__ */
#endif /* _POWERPC_PMC_H */

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