| /* 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 |
| } |
| |
| 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 */ |
