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46 lines
989 B
46 lines
989 B
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* pmc.h |
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* Copyright (C) 2004 David Gibson, IBM Corporation |
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*/ |
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#ifndef _POWERPC_PMC_H |
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#define _POWERPC_PMC_H |
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#ifdef __KERNEL__ |
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#include <asm/ptrace.h> |
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typedef void (*perf_irq_t)(struct pt_regs *); |
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extern perf_irq_t perf_irq; |
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int reserve_pmc_hardware(perf_irq_t new_perf_irq); |
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void release_pmc_hardware(void); |
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void ppc_enable_pmcs(void); |
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#ifdef CONFIG_PPC_BOOK3S_64 |
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#include <asm/lppaca.h> |
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#include <asm/firmware.h> |
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static inline void ppc_set_pmu_inuse(int inuse) |
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{ |
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#if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_BOOK3S_HV_POSSIBLE) |
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if (firmware_has_feature(FW_FEATURE_LPAR)) { |
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#ifdef CONFIG_PPC_PSERIES |
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get_lppaca()->pmcregs_in_use = inuse; |
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#endif |
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} |
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#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE |
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get_paca()->pmcregs_in_use = inuse; |
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#endif |
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#endif |
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} |
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extern void power4_enable_pmcs(void); |
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#else /* CONFIG_PPC64 */ |
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static inline void ppc_set_pmu_inuse(int inuse) { } |
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#endif |
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#endif /* __KERNEL__ */ |
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#endif /* _POWERPC_PMC_H */
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