| /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| /* |
| * Copyright (C) 2002-2003 Hewlett-Packard Co |
| * Stephane Eranian <eranian@hpl.hp.com> |
| * |
| * This file implements the default sampling buffer format |
| * for Linux/ia64 perfmon subsystem. |
| */ |
| #ifndef __PERFMON_DEFAULT_SMPL_H__ |
| #define __PERFMON_DEFAULT_SMPL_H__ 1 |
| |
| #define PFM_DEFAULT_SMPL_UUID { \ |
| 0x4d, 0x72, 0xbe, 0xc0, 0x06, 0x64, 0x41, 0x43, 0x82, 0xb4, 0xd3, 0xfd, 0x27, 0x24, 0x3c, 0x97} |
| |
| /* |
| * format specific parameters (passed at context creation) |
| */ |
| typedef struct { |
| unsigned long buf_size; /* size of the buffer in bytes */ |
| unsigned int flags; /* buffer specific flags */ |
| unsigned int res1; /* for future use */ |
| unsigned long reserved[2]; /* for future use */ |
| } pfm_default_smpl_arg_t; |
| |
| /* |
| * combined context+format specific structure. Can be passed |
| * to PFM_CONTEXT_CREATE |
| */ |
| typedef struct { |
| pfarg_context_t ctx_arg; |
| pfm_default_smpl_arg_t buf_arg; |
| } pfm_default_smpl_ctx_arg_t; |
| |
| /* |
| * This header is at the beginning of the sampling buffer returned to the user. |
| * It is directly followed by the first record. |
| */ |
| typedef struct { |
| unsigned long hdr_count; /* how many valid entries */ |
| unsigned long hdr_cur_offs; /* current offset from top of buffer */ |
| unsigned long hdr_reserved2; /* reserved for future use */ |
| |
| unsigned long hdr_overflows; /* how many times the buffer overflowed */ |
| unsigned long hdr_buf_size; /* how many bytes in the buffer */ |
| |
| unsigned int hdr_version; /* contains perfmon version (smpl format diffs) */ |
| unsigned int hdr_reserved1; /* for future use */ |
| unsigned long hdr_reserved[10]; /* for future use */ |
| } pfm_default_smpl_hdr_t; |
| |
| /* |
| * Entry header in the sampling buffer. The header is directly followed |
| * with the values of the PMD registers of interest saved in increasing |
| * index order: PMD4, PMD5, and so on. How many PMDs are present depends |
| * on how the session was programmed. |
| * |
| * In the case where multiple counters overflow at the same time, multiple |
| * entries are written consecutively. |
| * |
| * last_reset_value member indicates the initial value of the overflowed PMD. |
| */ |
| typedef struct { |
| int pid; /* thread id (for NPTL, this is gettid()) */ |
| unsigned char reserved1[3]; /* reserved for future use */ |
| unsigned char ovfl_pmd; /* index of overflowed PMD */ |
| |
| unsigned long last_reset_val; /* initial value of overflowed PMD */ |
| unsigned long ip; /* where did the overflow interrupt happened */ |
| unsigned long tstamp; /* ar.itc when entering perfmon intr. handler */ |
| |
| unsigned short cpu; /* cpu on which the overflow occurred */ |
| unsigned short set; /* event set active when overflow occurred */ |
| int tgid; /* thread group id (for NPTL, this is getpid()) */ |
| } pfm_default_smpl_entry_t; |
| |
| #define PFM_DEFAULT_MAX_PMDS 64 /* how many pmds supported by data structures (sizeof(unsigned long) */ |
| #define PFM_DEFAULT_MAX_ENTRY_SIZE (sizeof(pfm_default_smpl_entry_t)+(sizeof(unsigned long)*PFM_DEFAULT_MAX_PMDS)) |
| #define PFM_DEFAULT_SMPL_MIN_BUF_SIZE (sizeof(pfm_default_smpl_hdr_t)+PFM_DEFAULT_MAX_ENTRY_SIZE) |
| |
| #define PFM_DEFAULT_SMPL_VERSION_MAJ 2U |
| #define PFM_DEFAULT_SMPL_VERSION_MIN 0U |
| #define PFM_DEFAULT_SMPL_VERSION (((PFM_DEFAULT_SMPL_VERSION_MAJ&0xffff)<<16)|(PFM_DEFAULT_SMPL_VERSION_MIN & 0xffff)) |
| |
| #endif /* __PERFMON_DEFAULT_SMPL_H__ */ |
