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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
| commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
| tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /arch/powerpc/include/asm/pmc.h | |
| parent | Initial commit. (diff) | |
| download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip | |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/powerpc/include/asm/pmc.h')
| -rw-r--r-- | arch/powerpc/include/asm/pmc.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/pmc.h b/arch/powerpc/include/asm/pmc.h new file mode 100644 index 000000000..3c09109e7 --- /dev/null +++ b/arch/powerpc/include/asm/pmc.h @@ -0,0 +1,53 @@ +/* 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 */ |