Cregit: Linux 5.2: pmc.h

Contributors: 10
Author	Tokens	Token Proportion	Commits	Commit Proportion
Nicholas Piggin	45	31.25%	1	9.09%
Paul Mackerras	36	25.00%	1	9.09%
Kumar Gala	27	18.75%	2	18.18%
David Gibson	19	13.19%	1	9.09%
Arnd Bergmann	6	4.17%	1	9.09%
Matt Porter	4	2.78%	1	9.09%
Olof Johansson	3	2.08%	1	9.09%
Thomas Gleixner	2	1.39%	1	9.09%
Benjamin Herrenschmidt	1	0.69%	1	9.09%
Stephen Rothwell	1	0.69%	1	9.09%
Total	144		11

/* 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
	} else {
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
		get_paca()->pmcregs_in_use = inuse;
#endif
	}
#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 */