projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * Copyright (C) 2001-2003 Hewlett-Packard Co | |
| 3 | * Stephane Eranian <eranian@hpl.hp.com> | |
| 4 | */ | |
| 1da177e4 LT |
5 | #ifndef _ASM_IA64_PERFMON_H |
| 6 | #define _ASM_IA64_PERFMON_H | |
| 7 | ||
| 43e40f25 | 8 | #include <uapi/asm/perfmon.h> |
| 1da177e4 LT |
9 | |
| 10 | ||
| 1da177e4 LT |
11 | extern long perfmonctl(int fd, int cmd, void *arg, int narg); |
| 12 | ||
| a1ecf7f6 TL |
13 | typedef struct { |
| 14 | void (*handler)(int irq, void *arg, struct pt_regs *regs); | |
| 15 | } pfm_intr_handler_desc_t; | |
| 16 | ||
| 1da177e4 LT |
17 | extern void pfm_save_regs (struct task_struct *); |
| 18 | extern void pfm_load_regs (struct task_struct *); | |
| 19 | ||
| 20 | extern void pfm_exit_thread(struct task_struct *); | |
| 21 | extern int pfm_use_debug_registers(struct task_struct *); | |
| 22 | extern int pfm_release_debug_registers(struct task_struct *); | |
| 23 | extern void pfm_syst_wide_update_task(struct task_struct *, unsigned long info, int is_ctxswin); | |
| 24 | extern void pfm_inherit(struct task_struct *task, struct pt_regs *regs); | |
| 25 | extern void pfm_init_percpu(void); | |
| 26 | extern void pfm_handle_work(void); | |
| a1ecf7f6 TL |
27 | extern int pfm_install_alt_pmu_interrupt(pfm_intr_handler_desc_t *h); |
| 28 | extern int pfm_remove_alt_pmu_interrupt(pfm_intr_handler_desc_t *h); | |
| 29 | ||
| 30 | ||
| 1da177e4 LT |
31 | |
| 32 | /* | |
| 33 | * Reset PMD register flags | |
| 34 | */ | |
| 35 | #define PFM_PMD_SHORT_RESET 0 | |
| 36 | #define PFM_PMD_LONG_RESET 1 | |
| 37 | ||
| 38 | typedef union { | |
| 39 | unsigned int val; | |
| 40 | struct { | |
| 41 | unsigned int notify_user:1; /* notify user program of overflow */ | |
| 42 | unsigned int reset_ovfl_pmds:1; /* reset overflowed PMDs */ | |
| 43 | unsigned int block_task:1; /* block monitored task on kernel exit */ | |
| 44 | unsigned int mask_monitoring:1; /* mask monitors via PMCx.plm */ | |
| 45 | unsigned int reserved:28; /* for future use */ | |
| 46 | } bits; | |
| 47 | } pfm_ovfl_ctrl_t; | |
| 48 | ||
| 49 | typedef struct { | |
| 50 | unsigned char ovfl_pmd; /* index of overflowed PMD */ | |
| 51 | unsigned char ovfl_notify; /* =1 if monitor requested overflow notification */ | |
| 52 | unsigned short active_set; /* event set active at the time of the overflow */ | |
| 53 | pfm_ovfl_ctrl_t ovfl_ctrl; /* return: perfmon controls to set by handler */ | |
| 54 | ||
| 55 | unsigned long pmd_last_reset; /* last reset value of of the PMD */ | |
| 56 | unsigned long smpl_pmds[4]; /* bitmask of other PMD of interest on overflow */ | |
| 57 | unsigned long smpl_pmds_values[PMU_MAX_PMDS]; /* values for the other PMDs of interest */ | |
| 58 | unsigned long pmd_value; /* current 64-bit value of the PMD */ | |
| 59 | unsigned long pmd_eventid; /* eventid associated with PMD */ | |
| 60 | } pfm_ovfl_arg_t; | |
| 61 | ||
| 62 | ||
| 63 | typedef struct { | |
| 64 | char *fmt_name; | |
| 65 | pfm_uuid_t fmt_uuid; | |
| 66 | size_t fmt_arg_size; | |
| 67 | unsigned long fmt_flags; | |
| 68 | ||
| 69 | int (*fmt_validate)(struct task_struct *task, unsigned int flags, int cpu, void *arg); | |
| 70 | int (*fmt_getsize)(struct task_struct *task, unsigned int flags, int cpu, void *arg, unsigned long *size); | |
| 71 | int (*fmt_init)(struct task_struct *task, void *buf, unsigned int flags, int cpu, void *arg); | |
| 72 | int (*fmt_handler)(struct task_struct *task, void *buf, pfm_ovfl_arg_t *arg, struct pt_regs *regs, unsigned long stamp); | |
| 73 | int (*fmt_restart)(struct task_struct *task, pfm_ovfl_ctrl_t *ctrl, void *buf, struct pt_regs *regs); | |
| 74 | int (*fmt_restart_active)(struct task_struct *task, pfm_ovfl_ctrl_t *ctrl, void *buf, struct pt_regs *regs); | |
| 75 | int (*fmt_exit)(struct task_struct *task, void *buf, struct pt_regs *regs); | |
| 76 | ||
| 77 | struct list_head fmt_list; | |
| 78 | } pfm_buffer_fmt_t; | |
| 79 | ||
| 80 | extern int pfm_register_buffer_fmt(pfm_buffer_fmt_t *fmt); | |
| 81 | extern int pfm_unregister_buffer_fmt(pfm_uuid_t uuid); | |
| 82 | ||
| 83 | /* | |
| 84 | * perfmon interface exported to modules | |
| 85 | */ | |
| 86 | extern int pfm_mod_read_pmds(struct task_struct *, void *req, unsigned int nreq, struct pt_regs *regs); | |
| 87 | extern int pfm_mod_write_pmcs(struct task_struct *, void *req, unsigned int nreq, struct pt_regs *regs); | |
| 88 | extern int pfm_mod_write_ibrs(struct task_struct *task, void *req, unsigned int nreq, struct pt_regs *regs); | |
| 89 | extern int pfm_mod_write_dbrs(struct task_struct *task, void *req, unsigned int nreq, struct pt_regs *regs); | |
| 90 | ||
| 91 | /* | |
| 92 | * describe the content of the local_cpu_date->pfm_syst_info field | |
| 93 | */ | |
| 94 | #define PFM_CPUINFO_SYST_WIDE 0x1 /* if set a system wide session exists */ | |
| 95 | #define PFM_CPUINFO_DCR_PP 0x2 /* if set the system wide session has started */ | |
| 96 | #define PFM_CPUINFO_EXCL_IDLE 0x4 /* the system wide session excludes the idle task */ | |
| 97 | ||
| 4944930a SE |
98 | /* |
| 99 | * sysctl control structure. visible to sampling formats | |
| 100 | */ | |
| 101 | typedef struct { | |
| 102 | int debug; /* turn on/off debugging via syslog */ | |
| 103 | int debug_ovfl; /* turn on/off debug printk in overflow handler */ | |
| 104 | int fastctxsw; /* turn on/off fast (unsecure) ctxsw */ | |
| 105 | int expert_mode; /* turn on/off value checking */ | |
| 106 | } pfm_sysctl_t; | |
| 107 | extern pfm_sysctl_t pfm_sysctl; | |
| 108 | ||
| 109 | ||
| 1da177e4 | 110 | #endif /* _ASM_IA64_PERFMON_H */ |