/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * Copyright (C) 2001-2003 Hewlett-Packard Co * Stephane Eranian <eranian@hpl.hp.com> */ #ifndef _UAPI_ASM_IA64_PERFMON_H #define _UAPI_ASM_IA64_PERFMON_H /* * perfmon commands supported on all CPU models */ #define PFM_WRITE_PMCS 0x01 #define PFM_WRITE_PMDS 0x02 #define PFM_READ_PMDS 0x03 #define PFM_STOP 0x04 #define PFM_START 0x05 #define PFM_ENABLE 0x06 /* obsolete */ #define PFM_DISABLE 0x07 /* obsolete */ #define PFM_CREATE_CONTEXT 0x08 #define PFM_DESTROY_CONTEXT 0x09 /* obsolete use close() */ #define PFM_RESTART 0x0a #define PFM_PROTECT_CONTEXT 0x0b /* obsolete */ #define PFM_GET_FEATURES 0x0c #define PFM_DEBUG 0x0d #define PFM_UNPROTECT_CONTEXT 0x0e /* obsolete */ #define PFM_GET_PMC_RESET_VAL 0x0f #define PFM_LOAD_CONTEXT 0x10 #define PFM_UNLOAD_CONTEXT 0x11 /* * PMU model specific commands (may not be supported on all PMU models) */ #define PFM_WRITE_IBRS 0x20 #define PFM_WRITE_DBRS 0x21 /* * context flags */ #define PFM_FL_NOTIFY_BLOCK 0x01 /* block task on user level notifications */ #define PFM_FL_SYSTEM_WIDE 0x02 /* create a system wide context */ #define PFM_FL_OVFL_NO_MSG 0x80 /* do not post overflow/end messages for notification */ /* * event set flags */ #define PFM_SETFL_EXCL_IDLE 0x01 /* exclude idle task (syswide only) XXX: DO NOT USE YET */ /* * PMC flags */ #define PFM_REGFL_OVFL_NOTIFY 0x1 /* send notification on overflow */ #define PFM_REGFL_RANDOM 0x2 /* randomize sampling interval */ /* * PMD/PMC/IBR/DBR return flags (ignored on input) * * Those flags are used on output and must be checked in case EAGAIN is returned * by any of the calls using a pfarg_reg_t or pfarg_dbreg_t structure. */ #define PFM_REG_RETFL_NOTAVAIL (1UL<<31) /* set if register is implemented but not available */ #define PFM_REG_RETFL_EINVAL (1UL<<30) /* set if register entry is invalid */ #define PFM_REG_RETFL_MASK (PFM_REG_RETFL_NOTAVAIL|PFM_REG_RETFL_EINVAL) #define PFM_REG_HAS_ERROR(flag) (((flag) & PFM_REG_RETFL_MASK) != 0) typedef unsigned char pfm_uuid_t[16]; /* custom sampling buffer identifier type */ /* * Request structure used to define a context */ typedef struct { pfm_uuid_t ctx_smpl_buf_id; /* which buffer format to use (if needed) */ unsigned long ctx_flags; /* noblock/block */ unsigned short ctx_nextra_sets; /* number of extra event sets (you always get 1) */ unsigned short ctx_reserved1; /* for future use */ int ctx_fd; /* return arg: unique identification for context */ void *ctx_smpl_vaddr; /* return arg: virtual address of sampling buffer, is used */ unsigned long ctx_reserved2[11];/* for future use */ } pfarg_context_t; /* * Request structure used to write/read a PMC or PMD */ typedef struct { unsigned int reg_num; /* which register */ unsigned short reg_set; /* event set for this register */ unsigned short reg_reserved1; /* for future use */ unsigned long reg_value; /* initial pmc/pmd value */ unsigned long reg_flags; /* input: pmc/pmd flags, return: reg error */ unsigned long reg_long_reset; /* reset after buffer overflow notification */ unsigned long reg_short_reset; /* reset after counter overflow */ unsigned long reg_reset_pmds[4]; /* which other counters to reset on overflow */ unsigned long reg_random_seed; /* seed value when randomization is used */ unsigned long reg_random_mask; /* bitmask used to limit random value */ unsigned long reg_last_reset_val;/* return: PMD last reset value */ unsigned long reg_smpl_pmds[4]; /* which pmds are accessed when PMC overflows */ unsigned long reg_smpl_eventid; /* opaque sampling event identifier */ unsigned long reg_reserved2[3]; /* for future use */ } pfarg_reg_t; typedef struct { unsigned int dbreg_num; /* which debug register */ unsigned short dbreg_set; /* event set for this register */ unsigned short dbreg_reserved1; /* for future use */ unsigned long dbreg_value; /* value for debug register */ unsigned long dbreg_flags; /* return: dbreg error */ unsigned long dbreg_reserved2[1]; /* for future use */ } pfarg_dbreg_t; typedef struct { unsigned int ft_version; /* perfmon: major [16-31], minor [0-15] */ unsigned int ft_reserved; /* reserved for future use */ unsigned long reserved[4]; /* for future use */ } pfarg_features_t; typedef struct { pid_t load_pid; /* process to load the context into */ unsigned short load_set; /* first event set to load */ unsigned short load_reserved1; /* for future use */ unsigned long load_reserved2[3]; /* for future use */ } pfarg_load_t; typedef struct { int msg_type; /* generic message header */ int msg_ctx_fd; /* generic message header */ unsigned long msg_ovfl_pmds[4]; /* which PMDs overflowed */ unsigned short msg_active_set; /* active set at the time of overflow */ unsigned short msg_reserved1; /* for future use */ unsigned int msg_reserved2; /* for future use */ unsigned long msg_tstamp; /* for perf tuning/debug */ } pfm_ovfl_msg_t; typedef struct { int msg_type; /* generic message header */ int msg_ctx_fd; /* generic message header */ unsigned long msg_tstamp; /* for perf tuning */ } pfm_end_msg_t; typedef struct { int msg_type; /* type of the message */ int msg_ctx_fd; /* unique identifier for the context */ unsigned long msg_tstamp; /* for perf tuning */ } pfm_gen_msg_t; #define PFM_MSG_OVFL 1 /* an overflow happened */ #define PFM_MSG_END 2 /* task to which context was attached ended */ typedef union { pfm_ovfl_msg_t pfm_ovfl_msg; pfm_end_msg_t pfm_end_msg; pfm_gen_msg_t pfm_gen_msg; } pfm_msg_t; /* * Define the version numbers for both perfmon as a whole and the sampling buffer format. */ #define PFM_VERSION_MAJ 2U #define PFM_VERSION_MIN 0U #define PFM_VERSION (((PFM_VERSION_MAJ&0xffff)<<16)|(PFM_VERSION_MIN & 0xffff)) #define PFM_VERSION_MAJOR(x) (((x)>>16) & 0xffff) #define PFM_VERSION_MINOR(x) ((x) & 0xffff) /* * miscellaneous architected definitions */ #define PMU_FIRST_COUNTER 4 /* first counting monitor (PMC/PMD) */ #define PMU_MAX_PMCS 256 /* maximum architected number of PMC registers */ #define PMU_MAX_PMDS 256 /* maximum architected number of PMD registers */ #endif /* _UAPI_ASM_IA64_PERFMON_H */Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Howells | 525 | 99.81% | 1 | 50.00% |
| Greg Kroah-Hartman | 1 | 0.19% | 1 | 50.00% |
| Total | 526 | 100.00% | 2 | 100.00% |