forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
111 lines
4.3 KiB
111 lines
4.3 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
|
/* |
|
* Copyright (C) 2001-2003 Hewlett-Packard Co |
|
* Stephane Eranian <[email protected]> |
|
*/ |
|
#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 */
|
|
|