1 /* SPDX-License-Identifier: GPL-2.0-or-later */
4 * Copyright (C) 2004 David Gibson, IBM Corporation
10 #include <asm/ptrace.h>
12 typedef void (*perf_irq_t)(struct pt_regs *);
13 extern perf_irq_t perf_irq;
15 int reserve_pmc_hardware(perf_irq_t new_perf_irq);
16 void release_pmc_hardware(void);
17 void ppc_enable_pmcs(void);
19 #ifdef CONFIG_PPC_BOOK3S_64
20 #include <asm/lppaca.h>
21 #include <asm/firmware.h>
23 static inline void ppc_set_pmu_inuse(int inuse)
25 #if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_BOOK3S_HV_POSSIBLE)
26 if (firmware_has_feature(FW_FEATURE_LPAR)) {
27 #ifdef CONFIG_PPC_PSERIES
28 get_lppaca()->pmcregs_in_use = inuse;
31 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
32 get_paca()->pmcregs_in_use = inuse;
37 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
38 static inline int ppc_get_pmu_inuse(void)
40 return get_paca()->pmcregs_in_use;
44 extern void power4_enable_pmcs(void);
46 #else /* CONFIG_PPC64 */
48 static inline void ppc_set_pmu_inuse(int inuse) { }
52 #endif /* __KERNEL__ */
53 #endif /* _POWERPC_PMC_H */