diff options
Diffstat (limited to 'include/linux/perf/riscv_pmu.h')
| -rw-r--r-- | include/linux/perf/riscv_pmu.h | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/include/linux/perf/riscv_pmu.h b/include/linux/perf/riscv_pmu.h index 43fc892aa7d9..f82a28040594 100644 --- a/include/linux/perf/riscv_pmu.h +++ b/include/linux/perf/riscv_pmu.h @@ -6,8 +6,8 @@ * */ -#ifndef _ASM_RISCV_PERF_EVENT_H -#define _ASM_RISCV_PERF_EVENT_H +#ifndef _RISCV_PMU_H +#define _RISCV_PMU_H #include <linux/perf_event.h> #include <linux/ptrace.h> @@ -21,7 +21,7 @@ #define RISCV_MAX_COUNTERS 64 #define RISCV_OP_UNSUPP (-EOPNOTSUPP) -#define RISCV_PMU_PDEV_NAME "riscv-pmu" +#define RISCV_PMU_SBI_PDEV_NAME "riscv-pmu-sbi" #define RISCV_PMU_LEGACY_PDEV_NAME "riscv-pmu-legacy" #define RISCV_PMU_STOP_FLAG_RESET 1 @@ -39,6 +39,14 @@ struct cpu_hw_events { DECLARE_BITMAP(used_hw_ctrs, RISCV_MAX_COUNTERS); /* currently enabled firmware counters */ DECLARE_BITMAP(used_fw_ctrs, RISCV_MAX_COUNTERS); + /* The virtual address of the shared memory where counter snapshot will be taken */ + void *snapshot_addr; + /* The physical address of the shared memory where counter snapshot will be taken */ + phys_addr_t snapshot_addr_phys; + /* Boolean flag to indicate setup is already done */ + bool snapshot_set_done; + /* A shadow copy of the counter values to avoid clobbering during multiple SBI calls */ + u64 snapshot_cval_shcopy[RISCV_MAX_COUNTERS]; }; struct riscv_pmu { @@ -55,6 +63,10 @@ struct riscv_pmu { void (*ctr_start)(struct perf_event *event, u64 init_val); void (*ctr_stop)(struct perf_event *event, unsigned long flag); int (*event_map)(struct perf_event *event, u64 *config); + void (*event_init)(struct perf_event *event); + void (*event_mapped)(struct perf_event *event, struct mm_struct *mm); + void (*event_unmapped)(struct perf_event *event, struct mm_struct *mm); + uint8_t (*csr_index)(struct perf_event *event); struct cpu_hw_events __percpu *hw_events; struct hlist_node node; @@ -77,8 +89,9 @@ static inline void riscv_pmu_legacy_skip_init(void) {}; struct riscv_pmu *riscv_pmu_alloc(void); #ifdef CONFIG_RISCV_PMU_SBI int riscv_pmu_get_hpm_info(u32 *hw_ctr_width, u32 *num_hw_ctr); +int riscv_pmu_get_event_info(u32 type, u64 config, u64 *econfig); #endif #endif /* CONFIG_RISCV_PMU */ -#endif /* _ASM_RISCV_PERF_EVENT_H */ +#endif /* _RISCV_PMU_H */ |