2 * Copyright (C) 2015 Linaro Ltd.
3 * Author: Shannon Zhao <shannon.zhao@linaro.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 #ifndef __ASM_ARM_KVM_PMU_H
19 #define __ASM_ARM_KVM_PMU_H
21 #ifdef CONFIG_KVM_ARM_PMU
23 #include <linux/perf_event.h>
24 #include <asm/perf_event.h>
26 #define ARMV8_PMU_CYCLE_IDX (ARMV8_PMU_MAX_COUNTERS - 1)
29 u8 idx
; /* index into the pmu->pmc array */
30 struct perf_event
*perf_event
;
36 struct kvm_pmc pmc
[ARMV8_PMU_MAX_COUNTERS
];
41 #define kvm_arm_pmu_v3_ready(v) ((v)->arch.pmu.ready)
42 u64
kvm_pmu_get_counter_value(struct kvm_vcpu
*vcpu
, u64 select_idx
);
43 void kvm_pmu_set_counter_value(struct kvm_vcpu
*vcpu
, u64 select_idx
, u64 val
);
44 u64
kvm_pmu_valid_counter_mask(struct kvm_vcpu
*vcpu
);
45 void kvm_pmu_disable_counter(struct kvm_vcpu
*vcpu
, u64 val
);
46 void kvm_pmu_enable_counter(struct kvm_vcpu
*vcpu
, u64 val
);
47 void kvm_pmu_overflow_set(struct kvm_vcpu
*vcpu
, u64 val
);
48 void kvm_pmu_flush_hwstate(struct kvm_vcpu
*vcpu
);
49 void kvm_pmu_sync_hwstate(struct kvm_vcpu
*vcpu
);
50 void kvm_pmu_software_increment(struct kvm_vcpu
*vcpu
, u64 val
);
51 void kvm_pmu_handle_pmcr(struct kvm_vcpu
*vcpu
, u64 val
);
52 void kvm_pmu_set_counter_event_type(struct kvm_vcpu
*vcpu
, u64 data
,
58 #define kvm_arm_pmu_v3_ready(v) (false)
59 static inline u64
kvm_pmu_get_counter_value(struct kvm_vcpu
*vcpu
,
64 static inline void kvm_pmu_set_counter_value(struct kvm_vcpu
*vcpu
,
65 u64 select_idx
, u64 val
) {}
66 static inline u64
kvm_pmu_valid_counter_mask(struct kvm_vcpu
*vcpu
)
70 static inline void kvm_pmu_disable_counter(struct kvm_vcpu
*vcpu
, u64 val
) {}
71 static inline void kvm_pmu_enable_counter(struct kvm_vcpu
*vcpu
, u64 val
) {}
72 static inline void kvm_pmu_overflow_set(struct kvm_vcpu
*vcpu
, u64 val
) {}
73 static inline void kvm_pmu_flush_hwstate(struct kvm_vcpu
*vcpu
) {}
74 static inline void kvm_pmu_sync_hwstate(struct kvm_vcpu
*vcpu
) {}
75 static inline void kvm_pmu_software_increment(struct kvm_vcpu
*vcpu
, u64 val
) {}
76 static inline void kvm_pmu_handle_pmcr(struct kvm_vcpu
*vcpu
, u64 val
) {}
77 static inline void kvm_pmu_set_counter_event_type(struct kvm_vcpu
*vcpu
,
78 u64 data
, u64 select_idx
) {}
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