112 lines
4.3 KiB
C
112 lines
4.3 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||
|
|
/*
|
||
|
|
* Copyright (C) 2001-2003 Hewlett-Packard Co
|
||
|
|
* Stephane Eranian <eranian@hpl.hp.com>
|
||
|
|
*/
|
||
|
|
#ifndef _ASM_IA64_PERFMON_H
|
||
|
|
#define _ASM_IA64_PERFMON_H
|
||
|
|
|
||
|
|
#include <uapi/asm/perfmon.h>
|
||
|
|
|
||
|
|
|
||
|
|
extern long perfmonctl(int fd, int cmd, void *arg, int narg);
|
||
|
|
|
||
|
|
typedef struct {
|
||
|
|
void (*handler)(int irq, void *arg, struct pt_regs *regs);
|
||
|
|
} pfm_intr_handler_desc_t;
|
||
|
|
|
||
|
|
extern void pfm_save_regs (struct task_struct *);
|
||
|
|
extern void pfm_load_regs (struct task_struct *);
|
||
|
|
|
||
|
|
extern void pfm_exit_thread(struct task_struct *);
|
||
|
|
extern int pfm_use_debug_registers(struct task_struct *);
|
||
|
|
extern int pfm_release_debug_registers(struct task_struct *);
|
||
|
|
extern void pfm_syst_wide_update_task(struct task_struct *, unsigned long info, int is_ctxswin);
|
||
|
|
extern void pfm_inherit(struct task_struct *task, struct pt_regs *regs);
|
||
|
|
extern void pfm_init_percpu(void);
|
||
|
|
extern void pfm_handle_work(void);
|
||
|
|
extern int pfm_install_alt_pmu_interrupt(pfm_intr_handler_desc_t *h);
|
||
|
|
extern int pfm_remove_alt_pmu_interrupt(pfm_intr_handler_desc_t *h);
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Reset PMD register flags
|
||
|
|
*/
|
||
|
|
#define PFM_PMD_SHORT_RESET 0
|
||
|
|
#define PFM_PMD_LONG_RESET 1
|
||
|
|
|
||
|
|
typedef union {
|
||
|
|
unsigned int val;
|
||
|
|
struct {
|
||
|
|
unsigned int notify_user:1; /* notify user program of overflow */
|
||
|
|
unsigned int reset_ovfl_pmds:1; /* reset overflowed PMDs */
|
||
|
|
unsigned int block_task:1; /* block monitored task on kernel exit */
|
||
|
|
unsigned int mask_monitoring:1; /* mask monitors via PMCx.plm */
|
||
|
|
unsigned int reserved:28; /* for future use */
|
||
|
|
} bits;
|
||
|
|
} pfm_ovfl_ctrl_t;
|
||
|
|
|
||
|
|
typedef struct {
|
||
|
|
unsigned char ovfl_pmd; /* index of overflowed PMD */
|
||
|
|
unsigned char ovfl_notify; /* =1 if monitor requested overflow notification */
|
||
|
|
unsigned short active_set; /* event set active at the time of the overflow */
|
||
|
|
pfm_ovfl_ctrl_t ovfl_ctrl; /* return: perfmon controls to set by handler */
|
||
|
|
|
||
|
|
unsigned long pmd_last_reset; /* last reset value of of the PMD */
|
||
|
|
unsigned long smpl_pmds[4]; /* bitmask of other PMD of interest on overflow */
|
||
|
|
unsigned long smpl_pmds_values[PMU_MAX_PMDS]; /* values for the other PMDs of interest */
|
||
|
|
unsigned long pmd_value; /* current 64-bit value of the PMD */
|
||
|
|
unsigned long pmd_eventid; /* eventid associated with PMD */
|
||
|
|
} pfm_ovfl_arg_t;
|
||
|
|
|
||
|
|
|
||
|
|
typedef struct {
|
||
|
|
char *fmt_name;
|
||
|
|
pfm_uuid_t fmt_uuid;
|
||
|
|
size_t fmt_arg_size;
|
||
|
|
unsigned long fmt_flags;
|
||
|
|
|
||
|
|
int (*fmt_validate)(struct task_struct *task, unsigned int flags, int cpu, void *arg);
|
||
|
|
int (*fmt_getsize)(struct task_struct *task, unsigned int flags, int cpu, void *arg, unsigned long *size);
|
||
|
|
int (*fmt_init)(struct task_struct *task, void *buf, unsigned int flags, int cpu, void *arg);
|
||
|
|
int (*fmt_handler)(struct task_struct *task, void *buf, pfm_ovfl_arg_t *arg, struct pt_regs *regs, unsigned long stamp);
|
||
|
|
int (*fmt_restart)(struct task_struct *task, pfm_ovfl_ctrl_t *ctrl, void *buf, struct pt_regs *regs);
|
||
|
|
int (*fmt_restart_active)(struct task_struct *task, pfm_ovfl_ctrl_t *ctrl, void *buf, struct pt_regs *regs);
|
||
|
|
int (*fmt_exit)(struct task_struct *task, void *buf, struct pt_regs *regs);
|
||
|
|
|
||
|
|
struct list_head fmt_list;
|
||
|
|
} pfm_buffer_fmt_t;
|
||
|
|
|
||
|
|
extern int pfm_register_buffer_fmt(pfm_buffer_fmt_t *fmt);
|
||
|
|
extern int pfm_unregister_buffer_fmt(pfm_uuid_t uuid);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* perfmon interface exported to modules
|
||
|
|
*/
|
||
|
|
extern int pfm_mod_read_pmds(struct task_struct *, void *req, unsigned int nreq, struct pt_regs *regs);
|
||
|
|
extern int pfm_mod_write_pmcs(struct task_struct *, void *req, unsigned int nreq, struct pt_regs *regs);
|
||
|
|
extern int pfm_mod_write_ibrs(struct task_struct *task, void *req, unsigned int nreq, struct pt_regs *regs);
|
||
|
|
extern int pfm_mod_write_dbrs(struct task_struct *task, void *req, unsigned int nreq, struct pt_regs *regs);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* describe the content of the local_cpu_date->pfm_syst_info field
|
||
|
|
*/
|
||
|
|
#define PFM_CPUINFO_SYST_WIDE 0x1 /* if set a system wide session exists */
|
||
|
|
#define PFM_CPUINFO_DCR_PP 0x2 /* if set the system wide session has started */
|
||
|
|
#define PFM_CPUINFO_EXCL_IDLE 0x4 /* the system wide session excludes the idle task */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* sysctl control structure. visible to sampling formats
|
||
|
|
*/
|
||
|
|
typedef struct {
|
||
|
|
int debug; /* turn on/off debugging via syslog */
|
||
|
|
int debug_ovfl; /* turn on/off debug printk in overflow handler */
|
||
|
|
int fastctxsw; /* turn on/off fast (unsecure) ctxsw */
|
||
|
|
int expert_mode; /* turn on/off value checking */
|
||
|
|
} pfm_sysctl_t;
|
||
|
|
extern pfm_sysctl_t pfm_sysctl;
|
||
|
|
|
||
|
|
|
||
|
|
#endif /* _ASM_IA64_PERFMON_H */
|