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Many user space API headers are missing licensing information, which makes it hard for compliance tools to determine the correct license. By default are files without license information under the default license of the kernel, which is GPLV2. Marking them GPLV2 would exclude them from being included in non GPLV2 code, which is obviously not intended. The user space API headers fall under the syscall exception which is in the kernels COPYING file: NOTE! This copyright does *not* cover user programs that use kernel services by normal system calls - this is merely considered normal use of the kernel, and does *not* fall under the heading of "derived work". otherwise syscall usage would not be possible. Update the files which contain no license information with an SPDX license identifier. The chosen identifier is 'GPL-2.0 WITH Linux-syscall-note' which is the officially assigned identifier for the Linux syscall exception. SPDX license identifiers are a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. See the previous patch in this series for the methodology of how this patch was researched. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
85 lines
3.5 KiB
C
85 lines
3.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* Copyright (C) 2002-2003 Hewlett-Packard Co
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* Stephane Eranian <eranian@hpl.hp.com>
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*
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* This file implements the default sampling buffer format
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* for Linux/ia64 perfmon subsystem.
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*/
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#ifndef __PERFMON_DEFAULT_SMPL_H__
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#define __PERFMON_DEFAULT_SMPL_H__ 1
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#define PFM_DEFAULT_SMPL_UUID { \
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0x4d, 0x72, 0xbe, 0xc0, 0x06, 0x64, 0x41, 0x43, 0x82, 0xb4, 0xd3, 0xfd, 0x27, 0x24, 0x3c, 0x97}
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/*
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* format specific parameters (passed at context creation)
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*/
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typedef struct {
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unsigned long buf_size; /* size of the buffer in bytes */
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unsigned int flags; /* buffer specific flags */
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unsigned int res1; /* for future use */
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unsigned long reserved[2]; /* for future use */
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} pfm_default_smpl_arg_t;
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/*
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* combined context+format specific structure. Can be passed
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* to PFM_CONTEXT_CREATE
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*/
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typedef struct {
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pfarg_context_t ctx_arg;
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pfm_default_smpl_arg_t buf_arg;
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} pfm_default_smpl_ctx_arg_t;
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/*
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* This header is at the beginning of the sampling buffer returned to the user.
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* It is directly followed by the first record.
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*/
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typedef struct {
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unsigned long hdr_count; /* how many valid entries */
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unsigned long hdr_cur_offs; /* current offset from top of buffer */
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unsigned long hdr_reserved2; /* reserved for future use */
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unsigned long hdr_overflows; /* how many times the buffer overflowed */
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unsigned long hdr_buf_size; /* how many bytes in the buffer */
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unsigned int hdr_version; /* contains perfmon version (smpl format diffs) */
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unsigned int hdr_reserved1; /* for future use */
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unsigned long hdr_reserved[10]; /* for future use */
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} pfm_default_smpl_hdr_t;
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/*
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* Entry header in the sampling buffer. The header is directly followed
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* with the values of the PMD registers of interest saved in increasing
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* index order: PMD4, PMD5, and so on. How many PMDs are present depends
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* on how the session was programmed.
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*
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* In the case where multiple counters overflow at the same time, multiple
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* entries are written consecutively.
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*
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* last_reset_value member indicates the initial value of the overflowed PMD.
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*/
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typedef struct {
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int pid; /* thread id (for NPTL, this is gettid()) */
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unsigned char reserved1[3]; /* reserved for future use */
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unsigned char ovfl_pmd; /* index of overflowed PMD */
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unsigned long last_reset_val; /* initial value of overflowed PMD */
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unsigned long ip; /* where did the overflow interrupt happened */
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unsigned long tstamp; /* ar.itc when entering perfmon intr. handler */
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unsigned short cpu; /* cpu on which the overflow occurred */
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unsigned short set; /* event set active when overflow occurred */
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int tgid; /* thread group id (for NPTL, this is getpid()) */
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} pfm_default_smpl_entry_t;
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#define PFM_DEFAULT_MAX_PMDS 64 /* how many pmds supported by data structures (sizeof(unsigned long) */
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#define PFM_DEFAULT_MAX_ENTRY_SIZE (sizeof(pfm_default_smpl_entry_t)+(sizeof(unsigned long)*PFM_DEFAULT_MAX_PMDS))
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#define PFM_DEFAULT_SMPL_MIN_BUF_SIZE (sizeof(pfm_default_smpl_hdr_t)+PFM_DEFAULT_MAX_ENTRY_SIZE)
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#define PFM_DEFAULT_SMPL_VERSION_MAJ 2U
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#define PFM_DEFAULT_SMPL_VERSION_MIN 0U
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#define PFM_DEFAULT_SMPL_VERSION (((PFM_DEFAULT_SMPL_VERSION_MAJ&0xffff)<<16)|(PFM_DEFAULT_SMPL_VERSION_MIN & 0xffff))
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#endif /* __PERFMON_DEFAULT_SMPL_H__ */
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