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/*
* pai - Extract CPU Processor Activity Instrumentation (PAI) facility data.
*
* Copyright IBM Corp. 2022
*
* s390-tools is free software; you can redistribute it and/or modify
* it under the terms of the MIT license. See LICENSE for details.
*/
#ifndef PAI_H
#define PAI_H
#define S390_EVT_PAI_CRYPTO 0x1000
enum { /* Event attribute specifications */
S390_EVTATTR_CTX_SWITCH = 1,
S390_EVTATTR_COMM = 2,
S390_EVTATTR_FORK = 4,
S390_EVTATTR_USERSPACE = 8,
S390_EVTATTR_KERNELSPACE = 16
};
struct pai_event {
struct util_list_node node; /* List node */
struct perf_event_attr attr; /* Perf_event_open(2) attr */
int fd; /* Perf event file descriptor */
void *map_addr; /* Sampling data mapping address */
size_t map_size; /* Sampling size mapping size */
char file_name[16]; /* File name of sampled data */
int file_fd; /* Map data output file descriptor */
int cpu; /* Perf_event_open(2) CPU */
unsigned long flags; /* Perf_event_open(2) flags */
};
struct pai_event_out { /* Output for CRYPTO_ALL event */
__u32 type; /* Header type, see PERF_RECORD_xxx */
__u16 misc; /* Header misc, value depends on type */
__u64 time; /* Time stamp valid for all entries */
__u32 cpu; /* CPU number valid for all entries */
union {
/* Fields from PERF_RECORD_FORK|EXIT */
struct {
__u32 pid, ppid;
__u32 tid, ptid;
__u64 time;
} s_fork;
/* Fields from PERF_RECORD_COMM */
struct {
__u32 pid, tid;
__u8 cmd[16];
} s_comm;
/* Fields from PERF_RECORD_SWITCH_CPU_WIDE */
struct {
__u32 next_prev_pid, next_prev_tid;
} s_cs;
/* Fields from PERF_RECORD_LOST_SAMPLES */
struct {
__u64 lost;
} s_lost;
/* Relevant fields from PERF_RECORD_SAMPLE, time and cpu
* are stored above
*/
struct {
__u64 ip;
__u64 period;
__u32 pid, tid;
} s_sample;
/* Fields from PERF_RECORD_[UN]THROTTLE */
struct {
__u64 time;
__u64 id;
__u64 stream_id;
} s_throttle;
} u;
/* Information on last context switch out */
struct cs_switch {
unsigned char valid;
__u32 topid, totid;
__u32 frompid, fromtid;
} cs_switch;
void *raw; /* Pointer to key/value array for crypto counters */
};
struct data_pos { /* Perf event mapped ring buffer */
__u64 data_head; /* Head in the data section */
__u64 data_tail; /* User-space written tail */
__u64 data_offset; /* Where the buffer starts */
__u64 data_size; /* Data buffer size */
};
struct event_name { /* Event list for number to name xlate */
char *name; /* Event name */
__u64 config; /* Event config value */
__u64 total; /* Total counter value */
};
struct pmu_events { /* Event list for PMU number to name xlate */
struct util_list_node node; /* List node */
char *name; /* PMU name */
int type; /* PMU type */
int lstlen; /* # of entries in lst */
unsigned long base; /* Base event number */
struct event_name *lst; /* List of event names */
};
#endif /* PAI_H */
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