FM / linux

/usr/include/linux

Name	Size	Mode	Actions
android/	-	0755	rm
byteorder/	-	0755	rm
caif/	-	0755	rm
can/	-	0755	rm
cifs/	-	0755	rm
dvb/	-	0755	rm
genwqe/	-	0755	rm
hdlc/	-	0755	rm
hsi/	-	0755	rm
iio/	-	0755	rm
isdn/	-	0755	rm
misc/	-	0755	rm
mmc/	-	0755	rm
netfilter/	-	0755	rm
netfilter_arp/	-	0755	rm
netfilter_bridge/	-	0755	rm
netfilter_ipv4/	-	0755	rm
netfilter_ipv6/	-	0755	rm
nfsd/	-	0755	rm
raid/	-	0755	rm
sched/	-	0755	rm
spi/	-	0755	rm
sunrpc/	-	0755	rm
surface_aggregator/	-	0755	rm
tc_act/	-	0755	rm
tc_ematch/	-	0755	rm
usb/	-	0755	rm
a.out.h	6892	0644	edit dl rm
acct.h	3831	0644	edit dl rm
acrn.h	16690	0644	edit dl rm
adb.h	1140	0644	edit dl rm
adfs_fs.h	993	0644	edit dl rm
affs_hardblocks.h	1578	0644	edit dl rm
agpgart.h	3940	0644	edit dl rm
aio_abi.h	3398	0644	edit dl rm
am437x-vpfe.h	3681	0644	edit dl rm
apm_bios.h	3683	0644	edit dl rm
arcfb.h	213	0644	edit dl rm
arm_sdei.h	2751	0644	edit dl rm
aspeed-lpc-ctrl.h	1780	0644	edit dl rm
aspeed-p2a-ctrl.h	1906	0644	edit dl rm
atalk.h	1023	0644	edit dl rm
atm.h	7888	0644	edit dl rm
atmapi.h	952	0644	edit dl rm
atmarp.h	1296	0644	edit dl rm
atmbr2684.h	3271	0644	edit dl rm
atmclip.h	576	0644	edit dl rm
atmdev.h	7677	0644	edit dl rm
atmioc.h	1647	0644	edit dl rm
atmlec.h	2381	0644	edit dl rm
atmmpc.h	4226	0644	edit dl rm
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atmsvc.h	1853	0644	edit dl rm
atm_eni.h	648	0644	edit dl rm
atm_he.h	406	0644	edit dl rm
atm_idt77105.h	955	0644	edit dl rm
atm_nicstar.h	1278	0644	edit dl rm
atm_tcp.h	1622	0644	edit dl rm
atm_zatm.h	1540	0644	edit dl rm
audit.h	21252	0644	edit dl rm
aufs_type.h	11157	0644	edit dl rm
auto_dev-ioctl.h	4985	0644	edit dl rm
auto_fs.h	6428	0644	edit dl rm
auto_fs4.h	451	0644	edit dl rm
auxvec.h	1597	0644	edit dl rm
ax25.h	2824	0644	edit dl rm
batadv_packet.h	20345	0644	edit dl rm
batman_adv.h	16887	0644	edit dl rm
baycom.h	883	0644	edit dl rm
bcache.h	9970	0644	edit dl rm
bcm933xx_hcs.h	419	0644	edit dl rm
bfs_fs.h	1905	0644	edit dl rm
binfmts.h	776	0644	edit dl rm
blkpg.h	904	0644	edit dl rm
blktrace_api.h	4701	0644	edit dl rm
blkzoned.h	6493	0644	edit dl rm
bpf.h	235069	0644	edit dl rm
bpfilter.h	465	0644	edit dl rm
bpf_common.h	1367	0644	edit dl rm
bpf_perf_event.h	529	0644	edit dl rm
bpqether.h	981	0644	edit dl rm
bsg.h	2494	0644	edit dl rm
bt-bmc.h	572	0644	edit dl rm
btf.h	4796	0644	edit dl rm
btrfs.h	30849	0644	edit dl rm
btrfs_tree.h	27359	0644	edit dl rm
can.h	9258	0644	edit dl rm
capability.h	13492	0644	edit dl rm
capi.h	3124	0644	edit dl rm
cciss_defs.h	3281	0644	edit dl rm
cciss_ioctl.h	2761	0644	edit dl rm
ccs.h	767	0644	edit dl rm
cdrom.h	28899	0644	edit dl rm
cec-funcs.h	54053	0644	edit dl rm
cec.h	41414	0644	edit dl rm
cfm_bridge.h	1456	0644	edit dl rm
cgroupstats.h	2219	0644	edit dl rm
chio.h	5282	0644	edit dl rm
close_range.h	377	0644	edit dl rm
cm4000_cs.h	1806	0644	edit dl rm
cn_proc.h	3456	0644	edit dl rm
coda.h	18216	0644	edit dl rm
coff.h	12549	0644	edit dl rm
connector.h	2253	0644	edit dl rm
const.h	991	0644	edit dl rm
coresight-stm.h	747	0644	edit dl rm
cramfs_fs.h	3555	0644	edit dl rm
cryptouser.h	5321	0644	edit dl rm
cuda.h	905	0644	edit dl rm
cxl_mem.h	6472	0644	edit dl rm
cyclades.h	969	0644	edit dl rm
cycx_cfm.h	2990	0644	edit dl rm
dcbnl.h	25292	0644	edit dl rm
dccp.h	6436	0644	edit dl rm
devlink.h	20192	0644	edit dl rm
dlm.h	2553	0644	edit dl rm
dlmconstants.h	5080	0644	edit dl rm
dlm_device.h	2543	0644	edit dl rm
dlm_netlink.h	1159	0644	edit dl rm
dlm_plock.h	894	0644	edit dl rm
dm-ioctl.h	11602	0644	edit dl rm
dm-log-userspace.h	15191	0644	edit dl rm
dma-buf.h	3804	0644	edit dl rm
dma-heap.h	1394	0644	edit dl rm
dns_resolver.h	3949	0644	edit dl rm
dqblk_xfs.h	9388	0644	edit dl rm
edd.h	5604	0644	edit dl rm
efs_fs_sb.h	2227	0644	edit dl rm
elf-em.h	2586	0644	edit dl rm
elf-fdpic.h	1124	0644	edit dl rm
elf.h	14165	0644	edit dl rm
errno.h	23	0644	edit dl rm
errqueue.h	1983	0644	edit dl rm
erspan.h	1059	0644	edit dl rm
ethtool.h	82569	0644	edit dl rm
ethtool_netlink.h	23073	0644	edit dl rm
eventpoll.h	2913	0644	edit dl rm
f2fs.h	3301	0644	edit dl rm
fadvise.h	842	0644	edit dl rm
falloc.h	3584	0644	edit dl rm
fanotify.h	7480	0644	edit dl rm
fb.h	16477	0644	edit dl rm
fcntl.h	4251	0644	edit dl rm
fd.h	12117	0644	edit dl rm
fdreg.h	5364	0644	edit dl rm
fib_rules.h	2036	0644	edit dl rm
fiemap.h	2775	0644	edit dl rm
filter.h	2216	0644	edit dl rm
firewire-cdev.h	44240	0644	edit dl rm
firewire-constants.h	3231	0644	edit dl rm
fou.h	894	0644	edit dl rm
fpga-dfl.h	8728	0644	edit dl rm
fs.h	12298	0644	edit dl rm
fscrypt.h	6579	0644	edit dl rm
fsi.h	2255	0644	edit dl rm
fsl_hypervisor.h	7301	0644	edit dl rm
fsl_mc.h	734	0644	edit dl rm
fsmap.h	4393	0644	edit dl rm
fsverity.h	3185	0644	edit dl rm
fuse.h	22992	0644	edit dl rm
futex.h	5089	0644	edit dl rm
gameport.h	897	0644	edit dl rm
genetlink.h	2175	0644	edit dl rm
gen_stats.h	1526	0644	edit dl rm
gfs2_ondisk.h	14773	0644	edit dl rm
gpio.h	19768	0644	edit dl rm
gsmmux.h	1144	0644	edit dl rm
gtp.h	716	0644	edit dl rm
hash_info.h	971	0644	edit dl rm
hdlc.h	637	0644	edit dl rm
hdlcdrv.h	2908	0644	edit dl rm
hdreg.h	22703	0644	edit dl rm
hid.h	1901	0644	edit dl rm
hiddev.h	6345	0644	edit dl rm
hidraw.h	1993	0644	edit dl rm
hpet.h	743	0644	edit dl rm
hsr_netlink.h	1101	0644	edit dl rm
hw_breakpoint.h	742	0644	edit dl rm
hyperv.h	10592	0644	edit dl rm
i2c-dev.h	1875	0644	edit dl rm
i2c.h	6890	0644	edit dl rm
i2o-dev.h	11555	0644	edit dl rm
i8k.h	1528	0644	edit dl rm
icmp.h	4785	0644	edit dl rm
icmpv6.h	4269	0644	edit dl rm
idxd.h	7580	0644	edit dl rm
if.h	10925	0644	edit dl rm
ife.h	351	0644	edit dl rm
if_addr.h	1886	0644	edit dl rm
if_addrlabel.h	721	0644	edit dl rm
if_alg.h	1566	0644	edit dl rm
if_arcnet.h	3717	0644	edit dl rm
if_arp.h	6589	0644	edit dl rm
if_bonding.h	5145	0644	edit dl rm
if_bridge.h	19106	0644	edit dl rm
if_cablemodem.h	986	0644	edit dl rm
if_eql.h	1349	0644	edit dl rm
if_ether.h	8442	0644	edit dl rm
if_fc.h	1738	0644	edit dl rm
if_fddi.h	4369	0644	edit dl rm
if_hippi.h	4235	0644	edit dl rm
if_infiniband.h	1245	0644	edit dl rm
if_link.h	31719	0644	edit dl rm
if_ltalk.h	210	0644	edit dl rm
if_macsec.h	6475	0644	edit dl rm
if_packet.h	8147	0644	edit dl rm
if_phonet.h	424	0644	edit dl rm
if_plip.h	660	0644	edit dl rm
if_ppp.h	29	0644	edit dl rm
if_pppol2tp.h	3303	0644	edit dl rm
if_pppox.h	4879	0644	edit dl rm
if_slip.h	872	0644	edit dl rm
if_team.h	2600	0644	edit dl rm
if_tun.h	4098	0644	edit dl rm
if_tunnel.h	4835	0644	edit dl rm
if_vlan.h	1831	0644	edit dl rm
if_x25.h	881	0644	edit dl rm
if_xdp.h	3011	0644	edit dl rm
igmp.h	3064	0644	edit dl rm
ila.h	1246	0644	edit dl rm
in.h	10882	0644	edit dl rm
in6.h	7578	0644	edit dl rm
inet_diag.h	5017	0644	edit dl rm
inotify.h	3292	0644	edit dl rm
input-event-codes.h	28884	0644	edit dl rm
input.h	15982	0644	edit dl rm
in_route.h	936	0644	edit dl rm
ioam6.h	2384	0644	edit dl rm
ioam6_genl.h	945	0644	edit dl rm
ioam6_iptunnel.h	436	0644	edit dl rm
ioctl.h	163	0644	edit dl rm
iommu.h	12016	0644	edit dl rm
ioprio.h	1456	0644	edit dl rm
io_uring.h	9795	0644	edit dl rm
ip.h	4813	0644	edit dl rm
ip6_tunnel.h	1953	0644	edit dl rm
ipc.h	2101	0644	edit dl rm
ipmi.h	15049	0644	edit dl rm
ipmi_bmc.h	488	0644	edit dl rm
ipmi_msgdefs.h	3430	0644	edit dl rm
ipsec.h	947	0644	edit dl rm
ipu-isys.h	481	0644	edit dl rm
ipu-psys.h	3564	0644	edit dl rm
ipv6.h	4326	0644	edit dl rm
ipv6_route.h	1908	0644	edit dl rm
ip_vs.h	14135	0644	edit dl rm
irqnr.h	104	0644	edit dl rm
iso_fs.h	6485	0644	edit dl rm
isst_if.h	5404	0644	edit dl rm
ivtv.h	3022	0644	edit dl rm
ivtvfb.h	1207	0644	edit dl rm
jffs2.h	6815	0644	edit dl rm
joystick.h	3434	0644	edit dl rm
kcm.h	822	0644	edit dl rm
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kcov.h	1963	0644	edit dl rm
kd.h	6248	0644	edit dl rm
kdev_t.h	383	0644	edit dl rm
kernel-page-flags.h	900	0644	edit dl rm
kernel.h	194	0644	edit dl rm
kernelcapi.h	1019	0644	edit dl rm
kexec.h	1912	0644	edit dl rm
keyboard.h	13459	0644	edit dl rm
keyctl.h	5996	0644	edit dl rm
kfd_ioctl.h	24151	0644	edit dl rm
kvm.h	60755	0644	edit dl rm
kvm_para.h	1001	0644	edit dl rm
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limits.h	937	0644	edit dl rm
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lp.h	4190	0644	edit dl rm
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magic.h	3801	0644	edit dl rm
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mempolicy.h	2568	0644	edit dl rm
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mpls_iptunnel.h	761	0644	edit dl rm
mptcp.h	5735	0644	edit dl rm
mqueue.h	2201	0644	edit dl rm
mroute.h	5922	0644	edit dl rm
mroute6.h	4930	0644	edit dl rm
mrp_bridge.h	1708	0644	edit dl rm
msdos_fs.h	6731	0644	edit dl rm
msg.h	3386	0644	edit dl rm
mtio.h	8175	0644	edit dl rm
nbd-netlink.h	2408	0644	edit dl rm
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ncsi.h	4828	0644	edit dl rm
ndctl.h	6966	0644	edit dl rm
neighbour.h	5124	0644	edit dl rm
net.h	2085	0644	edit dl rm
netconf.h	614	0644	edit dl rm
netdevice.h	2253	0644	edit dl rm
netfilter.h	1712	0644	edit dl rm
netfilter_arp.h	445	0644	edit dl rm
netfilter_bridge.h	1238	0644	edit dl rm
netfilter_ipv4.h	1488	0644	edit dl rm
netfilter_ipv6.h	1383	0644	edit dl rm
netlink.h	11650	0644	edit dl rm
netlink_diag.h	1524	0644	edit dl rm
netrom.h	807	0644	edit dl rm
net_dropmon.h	2886	0644	edit dl rm
net_namespace.h	715	0644	edit dl rm
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nsfs.h	639	0644	edit dl rm
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nvram.h	532	0644	edit dl rm
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oom.h	511	0644	edit dl rm
openat2.h	1450	0644	edit dl rm
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packet_diag.h	1672	0644	edit dl rm
param.h	141	0644	edit dl rm
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patchkey.h	892	0644	edit dl rm
pci.h	1380	0644	edit dl rm
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pci_regs.h	58656	0644	edit dl rm
perf_event.h	39766	0644	edit dl rm
personality.h	2097	0644	edit dl rm
pfkeyv2.h	10569	0644	edit dl rm
pg.h	2394	0644	edit dl rm
phantom.h	1654	0644	edit dl rm
phonet.h	4677	0644	edit dl rm
pidfd.h	256	0644	edit dl rm
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sync_file.h	2884	0644	edit dl rm
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sysinfo.h	1049	0644	edit dl rm
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taskstats.h	7290	0644	edit dl rm
tcp.h	11934	0644	edit dl rm
tcp_metrics.h	1549	0644	edit dl rm
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Edit: /usr/include/linux/perf_event.h (39766B)

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * Performance events:
 *
 *    Copyright (C) 2008-2009, Thomas Gleixner <tglx@linutronix.de>
 *    Copyright (C) 2008-2011, Red Hat, Inc., Ingo Molnar
 *    Copyright (C) 2008-2011, Red Hat, Inc., Peter Zijlstra
 *
 * Data type definitions, declarations, prototypes.
 *
 *    Started by: Thomas Gleixner and Ingo Molnar
 *
 * For licencing details see kernel-base/COPYING
 */
#ifndef _LINUX_PERF_EVENT_H
#define _LINUX_PERF_EVENT_H

#include <linux/types.h>
#include <linux/ioctl.h>
#include <asm/byteorder.h>

/*
 * User-space ABI bits:
 */

/*
 * attr.type
 */
enum perf_type_id {
	PERF_TYPE_HARDWARE			= 0,
	PERF_TYPE_SOFTWARE			= 1,
	PERF_TYPE_TRACEPOINT			= 2,
	PERF_TYPE_HW_CACHE			= 3,
	PERF_TYPE_RAW				= 4,
	PERF_TYPE_BREAKPOINT			= 5,

PERF_TYPE_MAX,				/* non-ABI */
};

/*
 * attr.config layout for type PERF_TYPE_HARDWARE and PERF_TYPE_HW_CACHE
 * PERF_TYPE_HARDWARE:			0xEEEEEEEE000000AA
 *					AA: hardware event ID
 *					EEEEEEEE: PMU type ID
 * PERF_TYPE_HW_CACHE:			0xEEEEEEEE00DDCCBB
 *					BB: hardware cache ID
 *					CC: hardware cache op ID
 *					DD: hardware cache op result ID
 *					EEEEEEEE: PMU type ID
 * If the PMU type ID is 0, the PERF_TYPE_RAW will be applied.
 */
#define PERF_PMU_TYPE_SHIFT		32
#define PERF_HW_EVENT_MASK		0xffffffff

/*
 * Generalized performance event event_id types, used by the
 * attr.event_id parameter of the sys_perf_event_open()
 * syscall:
 */
enum perf_hw_id {
	/*
	 * Common hardware events, generalized by the kernel:
	 */
	PERF_COUNT_HW_CPU_CYCLES		= 0,
	PERF_COUNT_HW_INSTRUCTIONS		= 1,
	PERF_COUNT_HW_CACHE_REFERENCES		= 2,
	PERF_COUNT_HW_CACHE_MISSES		= 3,
	PERF_COUNT_HW_BRANCH_INSTRUCTIONS	= 4,
	PERF_COUNT_HW_BRANCH_MISSES		= 5,
	PERF_COUNT_HW_BUS_CYCLES		= 6,
	PERF_COUNT_HW_STALLED_CYCLES_FRONTEND	= 7,
	PERF_COUNT_HW_STALLED_CYCLES_BACKEND	= 8,
	PERF_COUNT_HW_REF_CPU_CYCLES		= 9,

PERF_COUNT_HW_MAX,			/* non-ABI */
};

/*
 * Generalized hardware cache events:
 *
 *       { L1-D, L1-I, LLC, ITLB, DTLB, BPU, NODE } x
 *       { read, write, prefetch } x
 *       { accesses, misses }
 */
enum perf_hw_cache_id {
	PERF_COUNT_HW_CACHE_L1D			= 0,
	PERF_COUNT_HW_CACHE_L1I			= 1,
	PERF_COUNT_HW_CACHE_LL			= 2,
	PERF_COUNT_HW_CACHE_DTLB		= 3,
	PERF_COUNT_HW_CACHE_ITLB		= 4,
	PERF_COUNT_HW_CACHE_BPU			= 5,
	PERF_COUNT_HW_CACHE_NODE		= 6,

PERF_COUNT_HW_CACHE_MAX,		/* non-ABI */
};

enum perf_hw_cache_op_id {
	PERF_COUNT_HW_CACHE_OP_READ		= 0,
	PERF_COUNT_HW_CACHE_OP_WRITE		= 1,
	PERF_COUNT_HW_CACHE_OP_PREFETCH		= 2,

PERF_COUNT_HW_CACHE_OP_MAX,		/* non-ABI */
};

enum perf_hw_cache_op_result_id {
	PERF_COUNT_HW_CACHE_RESULT_ACCESS	= 0,
	PERF_COUNT_HW_CACHE_RESULT_MISS		= 1,

PERF_COUNT_HW_CACHE_RESULT_MAX,		/* non-ABI */
};

/*
 * Special "software" events provided by the kernel, even if the hardware
 * does not support performance events. These events measure various
 * physical and sw events of the kernel (and allow the profiling of them as
 * well):
 */
enum perf_sw_ids {
	PERF_COUNT_SW_CPU_CLOCK			= 0,
	PERF_COUNT_SW_TASK_CLOCK		= 1,
	PERF_COUNT_SW_PAGE_FAULTS		= 2,
	PERF_COUNT_SW_CONTEXT_SWITCHES		= 3,
	PERF_COUNT_SW_CPU_MIGRATIONS		= 4,
	PERF_COUNT_SW_PAGE_FAULTS_MIN		= 5,
	PERF_COUNT_SW_PAGE_FAULTS_MAJ		= 6,
	PERF_COUNT_SW_ALIGNMENT_FAULTS		= 7,
	PERF_COUNT_SW_EMULATION_FAULTS		= 8,
	PERF_COUNT_SW_DUMMY			= 9,
	PERF_COUNT_SW_BPF_OUTPUT		= 10,
	PERF_COUNT_SW_CGROUP_SWITCHES		= 11,

PERF_COUNT_SW_MAX,			/* non-ABI */
};

/*
 * Bits that can be set in attr.sample_type to request information
 * in the overflow packets.
 */
enum perf_event_sample_format {
	PERF_SAMPLE_IP				= 1U << 0,
	PERF_SAMPLE_TID				= 1U << 1,
	PERF_SAMPLE_TIME			= 1U << 2,
	PERF_SAMPLE_ADDR			= 1U << 3,
	PERF_SAMPLE_READ			= 1U << 4,
	PERF_SAMPLE_CALLCHAIN			= 1U << 5,
	PERF_SAMPLE_ID				= 1U << 6,
	PERF_SAMPLE_CPU				= 1U << 7,
	PERF_SAMPLE_PERIOD			= 1U << 8,
	PERF_SAMPLE_STREAM_ID			= 1U << 9,
	PERF_SAMPLE_RAW				= 1U << 10,
	PERF_SAMPLE_BRANCH_STACK		= 1U << 11,
	PERF_SAMPLE_REGS_USER			= 1U << 12,
	PERF_SAMPLE_STACK_USER			= 1U << 13,
	PERF_SAMPLE_WEIGHT			= 1U << 14,
	PERF_SAMPLE_DATA_SRC			= 1U << 15,
	PERF_SAMPLE_IDENTIFIER			= 1U << 16,
	PERF_SAMPLE_TRANSACTION			= 1U << 17,
	PERF_SAMPLE_REGS_INTR			= 1U << 18,
	PERF_SAMPLE_PHYS_ADDR			= 1U << 19,
	PERF_SAMPLE_AUX				= 1U << 20,
	PERF_SAMPLE_CGROUP			= 1U << 21,
	PERF_SAMPLE_DATA_PAGE_SIZE		= 1U << 22,
	PERF_SAMPLE_CODE_PAGE_SIZE		= 1U << 23,
	PERF_SAMPLE_WEIGHT_STRUCT		= 1U << 24,

PERF_SAMPLE_MAX = 1U << 25,		/* non-ABI */

__PERF_SAMPLE_CALLCHAIN_EARLY		= 1ULL << 63, /* non-ABI; internal use */
};

#define PERF_SAMPLE_WEIGHT_TYPE	(PERF_SAMPLE_WEIGHT | PERF_SAMPLE_WEIGHT_STRUCT)
/*
 * values to program into branch_sample_type when PERF_SAMPLE_BRANCH is set
 *
 * If the user does not pass priv level information via branch_sample_type,
 * the kernel uses the event's priv level. Branch and event priv levels do
 * not have to match. Branch priv level is checked for permissions.
 *
 * The branch types can be combined, however BRANCH_ANY covers all types
 * of branches and therefore it supersedes all the other types.
 */
enum perf_branch_sample_type_shift {
	PERF_SAMPLE_BRANCH_USER_SHIFT		= 0, /* user branches */
	PERF_SAMPLE_BRANCH_KERNEL_SHIFT		= 1, /* kernel branches */
	PERF_SAMPLE_BRANCH_HV_SHIFT		= 2, /* hypervisor branches */

PERF_SAMPLE_BRANCH_ANY_SHIFT		= 3, /* any branch types */
	PERF_SAMPLE_BRANCH_ANY_CALL_SHIFT	= 4, /* any call branch */
	PERF_SAMPLE_BRANCH_ANY_RETURN_SHIFT	= 5, /* any return branch */
	PERF_SAMPLE_BRANCH_IND_CALL_SHIFT	= 6, /* indirect calls */
	PERF_SAMPLE_BRANCH_ABORT_TX_SHIFT	= 7, /* transaction aborts */
	PERF_SAMPLE_BRANCH_IN_TX_SHIFT		= 8, /* in transaction */
	PERF_SAMPLE_BRANCH_NO_TX_SHIFT		= 9, /* not in transaction */
	PERF_SAMPLE_BRANCH_COND_SHIFT		= 10, /* conditional branches */

PERF_SAMPLE_BRANCH_CALL_STACK_SHIFT	= 11, /* call/ret stack */
	PERF_SAMPLE_BRANCH_IND_JUMP_SHIFT	= 12, /* indirect jumps */
	PERF_SAMPLE_BRANCH_CALL_SHIFT		= 13, /* direct call */

PERF_SAMPLE_BRANCH_NO_FLAGS_SHIFT	= 14, /* no flags */
	PERF_SAMPLE_BRANCH_NO_CYCLES_SHIFT	= 15, /* no cycles */

PERF_SAMPLE_BRANCH_TYPE_SAVE_SHIFT	= 16, /* save branch type */

PERF_SAMPLE_BRANCH_HW_INDEX_SHIFT	= 17, /* save low level index of raw branch records */

PERF_SAMPLE_BRANCH_MAX_SHIFT		/* non-ABI */
};

enum perf_branch_sample_type {
	PERF_SAMPLE_BRANCH_USER		= 1U << PERF_SAMPLE_BRANCH_USER_SHIFT,
	PERF_SAMPLE_BRANCH_KERNEL	= 1U << PERF_SAMPLE_BRANCH_KERNEL_SHIFT,
	PERF_SAMPLE_BRANCH_HV		= 1U << PERF_SAMPLE_BRANCH_HV_SHIFT,

PERF_SAMPLE_BRANCH_ANY		= 1U << PERF_SAMPLE_BRANCH_ANY_SHIFT,
	PERF_SAMPLE_BRANCH_ANY_CALL	= 1U << PERF_SAMPLE_BRANCH_ANY_CALL_SHIFT,
	PERF_SAMPLE_BRANCH_ANY_RETURN	= 1U << PERF_SAMPLE_BRANCH_ANY_RETURN_SHIFT,
	PERF_SAMPLE_BRANCH_IND_CALL	= 1U << PERF_SAMPLE_BRANCH_IND_CALL_SHIFT,
	PERF_SAMPLE_BRANCH_ABORT_TX	= 1U << PERF_SAMPLE_BRANCH_ABORT_TX_SHIFT,
	PERF_SAMPLE_BRANCH_IN_TX	= 1U << PERF_SAMPLE_BRANCH_IN_TX_SHIFT,
	PERF_SAMPLE_BRANCH_NO_TX	= 1U << PERF_SAMPLE_BRANCH_NO_TX_SHIFT,
	PERF_SAMPLE_BRANCH_COND		= 1U << PERF_SAMPLE_BRANCH_COND_SHIFT,

PERF_SAMPLE_BRANCH_CALL_STACK	= 1U << PERF_SAMPLE_BRANCH_CALL_STACK_SHIFT,
	PERF_SAMPLE_BRANCH_IND_JUMP	= 1U << PERF_SAMPLE_BRANCH_IND_JUMP_SHIFT,
	PERF_SAMPLE_BRANCH_CALL		= 1U << PERF_SAMPLE_BRANCH_CALL_SHIFT,

PERF_SAMPLE_BRANCH_NO_FLAGS	= 1U << PERF_SAMPLE_BRANCH_NO_FLAGS_SHIFT,
	PERF_SAMPLE_BRANCH_NO_CYCLES	= 1U << PERF_SAMPLE_BRANCH_NO_CYCLES_SHIFT,

PERF_SAMPLE_BRANCH_TYPE_SAVE	=
		1U << PERF_SAMPLE_BRANCH_TYPE_SAVE_SHIFT,

PERF_SAMPLE_BRANCH_HW_INDEX	= 1U << PERF_SAMPLE_BRANCH_HW_INDEX_SHIFT,

PERF_SAMPLE_BRANCH_MAX		= 1U << PERF_SAMPLE_BRANCH_MAX_SHIFT,
};

/*
 * Common flow change classification
 */
enum {
	PERF_BR_UNKNOWN		= 0,	/* unknown */
	PERF_BR_COND		= 1,	/* conditional */
	PERF_BR_UNCOND		= 2,	/* unconditional  */
	PERF_BR_IND		= 3,	/* indirect */
	PERF_BR_CALL		= 4,	/* function call */
	PERF_BR_IND_CALL	= 5,	/* indirect function call */
	PERF_BR_RET		= 6,	/* function return */
	PERF_BR_SYSCALL		= 7,	/* syscall */
	PERF_BR_SYSRET		= 8,	/* syscall return */
	PERF_BR_COND_CALL	= 9,	/* conditional function call */
	PERF_BR_COND_RET	= 10,	/* conditional function return */
	PERF_BR_ERET		= 11,	/* exception return */
	PERF_BR_IRQ		= 12,	/* irq */
	PERF_BR_MAX,
};

#define PERF_SAMPLE_BRANCH_PLM_ALL \
	(PERF_SAMPLE_BRANCH_USER|\
	 PERF_SAMPLE_BRANCH_KERNEL|\
	 PERF_SAMPLE_BRANCH_HV)

/*
 * Values to determine ABI of the registers dump.
 */
enum perf_sample_regs_abi {
	PERF_SAMPLE_REGS_ABI_NONE	= 0,
	PERF_SAMPLE_REGS_ABI_32		= 1,
	PERF_SAMPLE_REGS_ABI_64		= 2,
};

/*
 * Values for the memory transaction event qualifier, mostly for
 * abort events. Multiple bits can be set.
 */
enum {
	PERF_TXN_ELISION        = (1 << 0), /* From elision */
	PERF_TXN_TRANSACTION    = (1 << 1), /* From transaction */
	PERF_TXN_SYNC           = (1 << 2), /* Instruction is related */
	PERF_TXN_ASYNC          = (1 << 3), /* Instruction not related */
	PERF_TXN_RETRY          = (1 << 4), /* Retry possible */
	PERF_TXN_CONFLICT       = (1 << 5), /* Conflict abort */
	PERF_TXN_CAPACITY_WRITE = (1 << 6), /* Capacity write abort */
	PERF_TXN_CAPACITY_READ  = (1 << 7), /* Capacity read abort */

PERF_TXN_MAX	        = (1 << 8), /* non-ABI */

/* bits 32..63 are reserved for the abort code */

PERF_TXN_ABORT_MASK  = (0xffffffffULL << 32),
	PERF_TXN_ABORT_SHIFT = 32,
};

/*
 * The format of the data returned by read() on a perf event fd,
 * as specified by attr.read_format:
 *
 * struct read_format {
 *	{ u64		value;
 *	  { u64		time_enabled; } && PERF_FORMAT_TOTAL_TIME_ENABLED
 *	  { u64		time_running; } && PERF_FORMAT_TOTAL_TIME_RUNNING
 *	  { u64		id;           } && PERF_FORMAT_ID
 *	  { u64		lost;         } && PERF_FORMAT_LOST
 *	} && !PERF_FORMAT_GROUP
 *
 *	{ u64		nr;
 *	  { u64		time_enabled; } && PERF_FORMAT_TOTAL_TIME_ENABLED
 *	  { u64		time_running; } && PERF_FORMAT_TOTAL_TIME_RUNNING
 *	  { u64		value;
 *	    { u64	id;           } && PERF_FORMAT_ID
 *	    { u64	lost;         } && PERF_FORMAT_LOST
 *	  }		cntr[nr];
 *	} && PERF_FORMAT_GROUP
 * };
 */
enum perf_event_read_format {
	PERF_FORMAT_TOTAL_TIME_ENABLED		= 1U << 0,
	PERF_FORMAT_TOTAL_TIME_RUNNING		= 1U << 1,
	PERF_FORMAT_ID				= 1U << 2,
	PERF_FORMAT_GROUP			= 1U << 3,
	PERF_FORMAT_LOST			= 1U << 4,

PERF_FORMAT_MAX = 1U << 5,		/* non-ABI */
};

#define PERF_ATTR_SIZE_VER0	64	/* sizeof first published struct */
#define PERF_ATTR_SIZE_VER1	72	/* add: config2 */
#define PERF_ATTR_SIZE_VER2	80	/* add: branch_sample_type */
#define PERF_ATTR_SIZE_VER3	96	/* add: sample_regs_user */
					/* add: sample_stack_user */
#define PERF_ATTR_SIZE_VER4	104	/* add: sample_regs_intr */
#define PERF_ATTR_SIZE_VER5	112	/* add: aux_watermark */
#define PERF_ATTR_SIZE_VER6	120	/* add: aux_sample_size */
#define PERF_ATTR_SIZE_VER7	128	/* add: sig_data */

/*
 * Hardware event_id to monitor via a performance monitoring event:
 *
 * @sample_max_stack: Max number of frame pointers in a callchain,
 *		      should be < /proc/sys/kernel/perf_event_max_stack
 */
struct perf_event_attr {

/*
	 * Major type: hardware/software/tracepoint/etc.
	 */
	__u32			type;

/*
	 * Size of the attr structure, for fwd/bwd compat.
	 */
	__u32			size;

/*
	 * Type specific configuration information.
	 */
	__u64			config;

union {
		__u64		sample_period;
		__u64		sample_freq;
	};

__u64			sample_type;
	__u64			read_format;

__u64			disabled       :  1, /* off by default        */
				inherit	       :  1, /* children inherit it   */
				pinned	       :  1, /* must always be on PMU */
				exclusive      :  1, /* only group on PMU     */
				exclude_user   :  1, /* don't count user      */
				exclude_kernel :  1, /* ditto kernel          */
				exclude_hv     :  1, /* ditto hypervisor      */
				exclude_idle   :  1, /* don't count when idle */
				mmap           :  1, /* include mmap data     */
				comm	       :  1, /* include comm data     */
				freq           :  1, /* use freq, not period  */
				inherit_stat   :  1, /* per task counts       */
				enable_on_exec :  1, /* next exec enables     */
				task           :  1, /* trace fork/exit       */
				watermark      :  1, /* wakeup_watermark      */
				/*
				 * precise_ip:
				 *
				 *  0 - SAMPLE_IP can have arbitrary skid
				 *  1 - SAMPLE_IP must have constant skid
				 *  2 - SAMPLE_IP requested to have 0 skid
				 *  3 - SAMPLE_IP must have 0 skid
				 *
				 *  See also PERF_RECORD_MISC_EXACT_IP
				 */
				precise_ip     :  2, /* skid constraint       */
				mmap_data      :  1, /* non-exec mmap data    */
				sample_id_all  :  1, /* sample_type all events */

exclude_host   :  1, /* don't count in host   */
				exclude_guest  :  1, /* don't count in guest  */

exclude_callchain_kernel : 1, /* exclude kernel callchains */
				exclude_callchain_user   : 1, /* exclude user callchains */
				mmap2          :  1, /* include mmap with inode data     */
				comm_exec      :  1, /* flag comm events that are due to an exec */
				use_clockid    :  1, /* use @clockid for time fields */
				context_switch :  1, /* context switch data */
				write_backward :  1, /* Write ring buffer from end to beginning */
				namespaces     :  1, /* include namespaces data */
				ksymbol        :  1, /* include ksymbol events */
				bpf_event      :  1, /* include bpf events */
				aux_output     :  1, /* generate AUX records instead of events */
				cgroup         :  1, /* include cgroup events */
				text_poke      :  1, /* include text poke events */
				build_id       :  1, /* use build id in mmap2 events */
				inherit_thread :  1, /* children only inherit if cloned with CLONE_THREAD */
				remove_on_exec :  1, /* event is removed from task on exec */
				sigtrap        :  1, /* send synchronous SIGTRAP on event */
				__reserved_1   : 26;

union {
		__u32		wakeup_events;	  /* wakeup every n events */
		__u32		wakeup_watermark; /* bytes before wakeup   */
	};

__u32			bp_type;
	union {
		__u64		bp_addr;
		__u64		kprobe_func; /* for perf_kprobe */
		__u64		uprobe_path; /* for perf_uprobe */
		__u64		config1; /* extension of config */
	};
	union {
		__u64		bp_len;
		__u64		kprobe_addr; /* when kprobe_func == NULL */
		__u64		probe_offset; /* for perf_[k,u]probe */
		__u64		config2; /* extension of config1 */
	};
	__u64	branch_sample_type; /* enum perf_branch_sample_type */

/*
	 * Defines set of user regs to dump on samples.
	 * See asm/perf_regs.h for details.
	 */
	__u64	sample_regs_user;

/*
	 * Defines size of the user stack to dump on samples.
	 */
	__u32	sample_stack_user;

__s32	clockid;
	/*
	 * Defines set of regs to dump for each sample
	 * state captured on:
	 *  - precise = 0: PMU interrupt
	 *  - precise > 0: sampled instruction
	 *
	 * See asm/perf_regs.h for details.
	 */
	__u64	sample_regs_intr;

/*
	 * Wakeup watermark for AUX area
	 */
	__u32	aux_watermark;
	__u16	sample_max_stack;
	__u16	__reserved_2;
	__u32	aux_sample_size;
	__u32	__reserved_3;

/*
	 * User provided data if sigtrap=1, passed back to user via
	 * siginfo_t::si_perf_data, e.g. to permit user to identify the event.
	 */
	__u64	sig_data;
};

/*
 * Structure used by below PERF_EVENT_IOC_QUERY_BPF command
 * to query bpf programs attached to the same perf tracepoint
 * as the given perf event.
 */
struct perf_event_query_bpf {
	/*
	 * The below ids array length
	 */
	__u32	ids_len;
	/*
	 * Set by the kernel to indicate the number of
	 * available programs
	 */
	__u32	prog_cnt;
	/*
	 * User provided buffer to store program ids
	 */
	__u32	ids[0];
};

/*
 * Ioctls that can be done on a perf event fd:
 */
#define PERF_EVENT_IOC_ENABLE			_IO ('$', 0)
#define PERF_EVENT_IOC_DISABLE			_IO ('$', 1)
#define PERF_EVENT_IOC_REFRESH			_IO ('$', 2)
#define PERF_EVENT_IOC_RESET			_IO ('$', 3)
#define PERF_EVENT_IOC_PERIOD			_IOW('$', 4, __u64)
#define PERF_EVENT_IOC_SET_OUTPUT		_IO ('$', 5)
#define PERF_EVENT_IOC_SET_FILTER		_IOW('$', 6, char *)
#define PERF_EVENT_IOC_ID			_IOR('$', 7, __u64 *)
#define PERF_EVENT_IOC_SET_BPF			_IOW('$', 8, __u32)
#define PERF_EVENT_IOC_PAUSE_OUTPUT		_IOW('$', 9, __u32)
#define PERF_EVENT_IOC_QUERY_BPF		_IOWR('$', 10, struct perf_event_query_bpf *)
#define PERF_EVENT_IOC_MODIFY_ATTRIBUTES	_IOW('$', 11, struct perf_event_attr *)

enum perf_event_ioc_flags {
	PERF_IOC_FLAG_GROUP		= 1U << 0,
};

/*
 * Structure of the page that can be mapped via mmap
 */
struct perf_event_mmap_page {
	__u32	version;		/* version number of this structure */
	__u32	compat_version;		/* lowest version this is compat with */

/*
	 * Bits needed to read the hw events in user-space.
	 *
	 *   u32 seq, time_mult, time_shift, index, width;
	 *   u64 count, enabled, running;
	 *   u64 cyc, time_offset;
	 *   s64 pmc = 0;
	 *
	 *   do {
	 *     seq = pc->lock;
	 *     barrier()
	 *
	 *     enabled = pc->time_enabled;
	 *     running = pc->time_running;
	 *
	 *     if (pc->cap_usr_time && enabled != running) {
	 *       cyc = rdtsc();
	 *       time_offset = pc->time_offset;
	 *       time_mult   = pc->time_mult;
	 *       time_shift  = pc->time_shift;
	 *     }
	 *
	 *     index = pc->index;
	 *     count = pc->offset;
	 *     if (pc->cap_user_rdpmc && index) {
	 *       width = pc->pmc_width;
	 *       pmc = rdpmc(index - 1);
	 *     }
	 *
	 *     barrier();
	 *   } while (pc->lock != seq);
	 *
	 * NOTE: for obvious reason this only works on self-monitoring
	 *       processes.
	 */
	__u32	lock;			/* seqlock for synchronization */
	__u32	index;			/* hardware event identifier */
	__s64	offset;			/* add to hardware event value */
	__u64	time_enabled;		/* time event active */
	__u64	time_running;		/* time event on cpu */
	union {
		__u64	capabilities;
		struct {
			__u64	cap_bit0		: 1, /* Always 0, deprecated, see commit 860f085b74e9 */
				cap_bit0_is_deprecated	: 1, /* Always 1, signals that bit 0 is zero */

cap_user_rdpmc		: 1, /* The RDPMC instruction can be used to read counts */
				cap_user_time		: 1, /* The time_{shift,mult,offset} fields are used */
				cap_user_time_zero	: 1, /* The time_zero field is used */
				cap_user_time_short	: 1, /* the time_{cycle,mask} fields are used */
				cap_____res		: 58;
		};
	};

/*
	 * If cap_user_rdpmc this field provides the bit-width of the value
	 * read using the rdpmc() or equivalent instruction. This can be used
	 * to sign extend the result like:
	 *
	 *   pmc <<= 64 - width;
	 *   pmc >>= 64 - width; // signed shift right
	 *   count += pmc;
	 */
	__u16	pmc_width;

/*
	 * If cap_usr_time the below fields can be used to compute the time
	 * delta since time_enabled (in ns) using rdtsc or similar.
	 *
	 *   u64 quot, rem;
	 *   u64 delta;
	 *
	 *   quot = (cyc >> time_shift);
	 *   rem = cyc & (((u64)1 << time_shift) - 1);
	 *   delta = time_offset + quot * time_mult +
	 *              ((rem * time_mult) >> time_shift);
	 *
	 * Where time_offset,time_mult,time_shift and cyc are read in the
	 * seqcount loop described above. This delta can then be added to
	 * enabled and possible running (if index), improving the scaling:
	 *
	 *   enabled += delta;
	 *   if (index)
	 *     running += delta;
	 *
	 *   quot = count / running;
	 *   rem  = count % running;
	 *   count = quot * enabled + (rem * enabled) / running;
	 */
	__u16	time_shift;
	__u32	time_mult;
	__u64	time_offset;
	/*
	 * If cap_usr_time_zero, the hardware clock (e.g. TSC) can be calculated
	 * from sample timestamps.
	 *
	 *   time = timestamp - time_zero;
	 *   quot = time / time_mult;
	 *   rem  = time % time_mult;
	 *   cyc = (quot << time_shift) + (rem << time_shift) / time_mult;
	 *
	 * And vice versa:
	 *
	 *   quot = cyc >> time_shift;
	 *   rem  = cyc & (((u64)1 << time_shift) - 1);
	 *   timestamp = time_zero + quot * time_mult +
	 *               ((rem * time_mult) >> time_shift);
	 */
	__u64	time_zero;

__u32	size;			/* Header size up to __reserved[] fields. */
	__u32	__reserved_1;

/*
	 * If cap_usr_time_short, the hardware clock is less than 64bit wide
	 * and we must compute the 'cyc' value, as used by cap_usr_time, as:
	 *
	 *   cyc = time_cycles + ((cyc - time_cycles) & time_mask)
	 *
	 * NOTE: this form is explicitly chosen such that cap_usr_time_short
	 *       is a correction on top of cap_usr_time, and code that doesn't
	 *       know about cap_usr_time_short still works under the assumption
	 *       the counter doesn't wrap.
	 */
	__u64	time_cycles;
	__u64	time_mask;

/*
		 * Hole for extension of the self monitor capabilities
		 */

__u8	__reserved[116*8];	/* align to 1k. */

/*
	 * Control data for the mmap() data buffer.
	 *
	 * User-space reading the @data_head value should issue an smp_rmb(),
	 * after reading this value.
	 *
	 * When the mapping is PROT_WRITE the @data_tail value should be
	 * written by userspace to reflect the last read data, after issueing
	 * an smp_mb() to separate the data read from the ->data_tail store.
	 * In this case the kernel will not over-write unread data.
	 *
	 * See perf_output_put_handle() for the data ordering.
	 *
	 * data_{offset,size} indicate the location and size of the perf record
	 * buffer within the mmapped area.
	 */
	__u64   data_head;		/* head in the data section */
	__u64	data_tail;		/* user-space written tail */
	__u64	data_offset;		/* where the buffer starts */
	__u64	data_size;		/* data buffer size */

/*
	 * AUX area is defined by aux_{offset,size} fields that should be set
	 * by the userspace, so that
	 *
	 *   aux_offset >= data_offset + data_size
	 *
	 * prior to mmap()ing it. Size of the mmap()ed area should be aux_size.
	 *
	 * Ring buffer pointers aux_{head,tail} have the same semantics as
	 * data_{head,tail} and same ordering rules apply.
	 */
	__u64	aux_head;
	__u64	aux_tail;
	__u64	aux_offset;
	__u64	aux_size;
};

/*
 * The current state of perf_event_header::misc bits usage:
 * ('|' used bit, '-' unused bit)
 *
 *  012         CDEF
 *  |||---------||||
 *
 *  Where:
 *    0-2     CPUMODE_MASK
 *
 *    C       PROC_MAP_PARSE_TIMEOUT
 *    D       MMAP_DATA / COMM_EXEC / FORK_EXEC / SWITCH_OUT
 *    E       MMAP_BUILD_ID / EXACT_IP / SCHED_OUT_PREEMPT
 *    F       (reserved)
 */

#define PERF_RECORD_MISC_CPUMODE_MASK		(7 << 0)
#define PERF_RECORD_MISC_CPUMODE_UNKNOWN	(0 << 0)
#define PERF_RECORD_MISC_KERNEL			(1 << 0)
#define PERF_RECORD_MISC_USER			(2 << 0)
#define PERF_RECORD_MISC_HYPERVISOR		(3 << 0)
#define PERF_RECORD_MISC_GUEST_KERNEL		(4 << 0)
#define PERF_RECORD_MISC_GUEST_USER		(5 << 0)

/*
 * Indicates that /proc/PID/maps parsing are truncated by time out.
 */
#define PERF_RECORD_MISC_PROC_MAP_PARSE_TIMEOUT	(1 << 12)
/*
 * Following PERF_RECORD_MISC_* are used on different
 * events, so can reuse the same bit position:
 *
 *   PERF_RECORD_MISC_MMAP_DATA  - PERF_RECORD_MMAP* events
 *   PERF_RECORD_MISC_COMM_EXEC  - PERF_RECORD_COMM event
 *   PERF_RECORD_MISC_FORK_EXEC  - PERF_RECORD_FORK event (perf internal)
 *   PERF_RECORD_MISC_SWITCH_OUT - PERF_RECORD_SWITCH* events
 */
#define PERF_RECORD_MISC_MMAP_DATA		(1 << 13)
#define PERF_RECORD_MISC_COMM_EXEC		(1 << 13)
#define PERF_RECORD_MISC_FORK_EXEC		(1 << 13)
#define PERF_RECORD_MISC_SWITCH_OUT		(1 << 13)
/*
 * These PERF_RECORD_MISC_* flags below are safely reused
 * for the following events:
 *
 *   PERF_RECORD_MISC_EXACT_IP           - PERF_RECORD_SAMPLE of precise events
 *   PERF_RECORD_MISC_SWITCH_OUT_PREEMPT - PERF_RECORD_SWITCH* events
 *   PERF_RECORD_MISC_MMAP_BUILD_ID      - PERF_RECORD_MMAP2 event
 *
 *
 * PERF_RECORD_MISC_EXACT_IP:
 *   Indicates that the content of PERF_SAMPLE_IP points to
 *   the actual instruction that triggered the event. See also
 *   perf_event_attr::precise_ip.
 *
 * PERF_RECORD_MISC_SWITCH_OUT_PREEMPT:
 *   Indicates that thread was preempted in TASK_RUNNING state.
 *
 * PERF_RECORD_MISC_MMAP_BUILD_ID:
 *   Indicates that mmap2 event carries build id data.
 */
#define PERF_RECORD_MISC_EXACT_IP		(1 << 14)
#define PERF_RECORD_MISC_SWITCH_OUT_PREEMPT	(1 << 14)
#define PERF_RECORD_MISC_MMAP_BUILD_ID		(1 << 14)
/*
 * Reserve the last bit to indicate some extended misc field
 */
#define PERF_RECORD_MISC_EXT_RESERVED		(1 << 15)

struct perf_event_header {
	__u32	type;
	__u16	misc;
	__u16	size;
};

struct perf_ns_link_info {
	__u64	dev;
	__u64	ino;
};

enum {
	NET_NS_INDEX		= 0,
	UTS_NS_INDEX		= 1,
	IPC_NS_INDEX		= 2,
	PID_NS_INDEX		= 3,
	USER_NS_INDEX		= 4,
	MNT_NS_INDEX		= 5,
	CGROUP_NS_INDEX		= 6,

NR_NAMESPACES,		/* number of available namespaces */
};

enum perf_event_type {

/*
	 * If perf_event_attr.sample_id_all is set then all event types will
	 * have the sample_type selected fields related to where/when
	 * (identity) an event took place (TID, TIME, ID, STREAM_ID, CPU,
	 * IDENTIFIER) described in PERF_RECORD_SAMPLE below, it will be stashed
	 * just after the perf_event_header and the fields already present for
	 * the existing fields, i.e. at the end of the payload. That way a newer
	 * perf.data file will be supported by older perf tools, with these new
	 * optional fields being ignored.
	 *
	 * struct sample_id {
	 * 	{ u32			pid, tid; } && PERF_SAMPLE_TID
	 * 	{ u64			time;     } && PERF_SAMPLE_TIME
	 * 	{ u64			id;       } && PERF_SAMPLE_ID
	 * 	{ u64			stream_id;} && PERF_SAMPLE_STREAM_ID
	 * 	{ u32			cpu, res; } && PERF_SAMPLE_CPU
	 *	{ u64			id;	  } && PERF_SAMPLE_IDENTIFIER
	 * } && perf_event_attr::sample_id_all
	 *
	 * Note that PERF_SAMPLE_IDENTIFIER duplicates PERF_SAMPLE_ID.  The
	 * advantage of PERF_SAMPLE_IDENTIFIER is that its position is fixed
	 * relative to header.size.
	 */

/*
	 * The MMAP events record the PROT_EXEC mappings so that we can
	 * correlate userspace IPs to code. They have the following structure:
	 *
	 * struct {
	 *	struct perf_event_header	header;
	 *
	 *	u32				pid, tid;
	 *	u64				addr;
	 *	u64				len;
	 *	u64				pgoff;
	 *	char				filename[];
	 * 	struct sample_id		sample_id;
	 * };
	 */
	PERF_RECORD_MMAP			= 1,

/*
	 * struct {
	 *	struct perf_event_header	header;
	 *	u64				id;
	 *	u64				lost;
	 * 	struct sample_id		sample_id;
	 * };
	 */
	PERF_RECORD_LOST			= 2,

/*
	 * struct {
	 *	struct perf_event_header	header;
	 *
	 *	u32				pid, tid;
	 *	char				comm[];
	 * 	struct sample_id		sample_id;
	 * };
	 */
	PERF_RECORD_COMM			= 3,

/*
	 * struct {
	 *	struct perf_event_header	header;
	 *	u32				pid, ppid;
	 *	u32				tid, ptid;
	 *	u64				time;
	 * 	struct sample_id		sample_id;
	 * };
	 */
	PERF_RECORD_EXIT			= 4,

/*
	 * struct {
	 *	struct perf_event_header	header;
	 *	u64				time;
	 *	u64				id;
	 *	u64				stream_id;
	 * 	struct sample_id		sample_id;
	 * };
	 */
	PERF_RECORD_THROTTLE			= 5,
	PERF_RECORD_UNTHROTTLE			= 6,

/*
	 * struct {
	 *	struct perf_event_header	header;
	 *	u32				pid, ppid;
	 *	u32				tid, ptid;
	 *	u64				time;
	 * 	struct sample_id		sample_id;
	 * };
	 */
	PERF_RECORD_FORK			= 7,

/*
	 * struct {
	 *	struct perf_event_header	header;
	 *	u32				pid, tid;
	 *
	 *	struct read_format		values;
	 * 	struct sample_id		sample_id;
	 * };
	 */
	PERF_RECORD_READ			= 8,

/*
	 * struct {
	 *	struct perf_event_header	header;
	 *
	 *	#
	 *	# Note that PERF_SAMPLE_IDENTIFIER duplicates PERF_SAMPLE_ID.
	 *	# The advantage of PERF_SAMPLE_IDENTIFIER is that its position
	 *	# is fixed relative to header.
	 *	#
	 *
	 *	{ u64			id;	  } && PERF_SAMPLE_IDENTIFIER
	 *	{ u64			ip;	  } && PERF_SAMPLE_IP
	 *	{ u32			pid, tid; } && PERF_SAMPLE_TID
	 *	{ u64			time;     } && PERF_SAMPLE_TIME
	 *	{ u64			addr;     } && PERF_SAMPLE_ADDR
	 *	{ u64			id;	  } && PERF_SAMPLE_ID
	 *	{ u64			stream_id;} && PERF_SAMPLE_STREAM_ID
	 *	{ u32			cpu, res; } && PERF_SAMPLE_CPU
	 *	{ u64			period;   } && PERF_SAMPLE_PERIOD
	 *
	 *	{ struct read_format	values;	  } && PERF_SAMPLE_READ
	 *
	 *	{ u64			nr,
	 *	  u64			ips[nr];  } && PERF_SAMPLE_CALLCHAIN
	 *
	 *	#
	 *	# The RAW record below is opaque data wrt the ABI
	 *	#
	 *	# That is, the ABI doesn't make any promises wrt to
	 *	# the stability of its content, it may vary depending
	 *	# on event, hardware, kernel version and phase of
	 *	# the moon.
	 *	#
	 *	# In other words, PERF_SAMPLE_RAW contents are not an ABI.
	 *	#
	 *
	 *	{ u32			size;
	 *	  char                  data[size];}&& PERF_SAMPLE_RAW
	 *
	 *	{ u64                   nr;
	 *	  { u64	hw_idx; } && PERF_SAMPLE_BRANCH_HW_INDEX
	 *        { u64 from, to, flags } lbr[nr];
	 *      } && PERF_SAMPLE_BRANCH_STACK
	 *
	 * 	{ u64			abi; # enum perf_sample_regs_abi
	 * 	  u64			regs[weight(mask)]; } && PERF_SAMPLE_REGS_USER
	 *
	 * 	{ u64			size;
	 * 	  char			data[size];
	 * 	  u64			dyn_size; } && PERF_SAMPLE_STACK_USER
	 *
	 *	{ union perf_sample_weight
	 *	 {
	 *		u64		full; && PERF_SAMPLE_WEIGHT
	 *	#if defined(__LITTLE_ENDIAN_BITFIELD)
	 *		struct {
	 *			u32	var1_dw;
	 *			u16	var2_w;
	 *			u16	var3_w;
	 *		} && PERF_SAMPLE_WEIGHT_STRUCT
	 *	#elif defined(__BIG_ENDIAN_BITFIELD)
	 *		struct {
	 *			u16	var3_w;
	 *			u16	var2_w;
	 *			u32	var1_dw;
	 *		} && PERF_SAMPLE_WEIGHT_STRUCT
	 *	#endif
	 *	 }
	 *	}
	 *	{ u64			data_src; } && PERF_SAMPLE_DATA_SRC
	 *	{ u64			transaction; } && PERF_SAMPLE_TRANSACTION
	 *	{ u64			abi; # enum perf_sample_regs_abi
	 *	  u64			regs[weight(mask)]; } && PERF_SAMPLE_REGS_INTR
	 *	{ u64			phys_addr;} && PERF_SAMPLE_PHYS_ADDR
	 *	{ u64			size;
	 *	  char			data[size]; } && PERF_SAMPLE_AUX
	 *	{ u64			data_page_size;} && PERF_SAMPLE_DATA_PAGE_SIZE
	 *	{ u64			code_page_size;} && PERF_SAMPLE_CODE_PAGE_SIZE
	 * };
	 */
	PERF_RECORD_SAMPLE			= 9,

/*
	 * The MMAP2 records are an augmented version of MMAP, they add
	 * maj, min, ino numbers to be used to uniquely identify each mapping
	 *
	 * struct {
	 *	struct perf_event_header	header;
	 *
	 *	u32				pid, tid;
	 *	u64				addr;
	 *	u64				len;
	 *	u64				pgoff;
	 *	union {
	 *		struct {
	 *			u32		maj;
	 *			u32		min;
	 *			u64		ino;
	 *			u64		ino_generation;
	 *		};
	 *		struct {
	 *			u8		build_id_size;
	 *			u8		__reserved_1;
	 *			u16		__reserved_2;
	 *			u8		build_id[20];
	 *		};
	 *	};
	 *	u32				prot, flags;
	 *	char				filename[];
	 * 	struct sample_id		sample_id;
	 * };
	 */
	PERF_RECORD_MMAP2			= 10,

/*
	 * Records that new data landed in the AUX buffer part.
	 *
	 * struct {
	 * 	struct perf_event_header	header;
	 *
	 * 	u64				aux_offset;
	 * 	u64				aux_size;
	 *	u64				flags;
	 * 	struct sample_id		sample_id;
	 * };
	 */
	PERF_RECORD_AUX				= 11,

/*
	 * Indicates that instruction trace has started
	 *
	 * struct {
	 *	struct perf_event_header	header;
	 *	u32				pid;
	 *	u32				tid;
	 *	struct sample_id		sample_id;
	 * };
	 */
	PERF_RECORD_ITRACE_START		= 12,

/*
	 * Records the dropped/lost sample number.
	 *
	 * struct {
	 *	struct perf_event_header	header;
	 *
	 *	u64				lost;
	 *	struct sample_id		sample_id;
	 * };
	 */
	PERF_RECORD_LOST_SAMPLES		= 13,

/*
	 * Records a context switch in or out (flagged by
	 * PERF_RECORD_MISC_SWITCH_OUT). See also
	 * PERF_RECORD_SWITCH_CPU_WIDE.
	 *
	 * struct {
	 *	struct perf_event_header	header;
	 *	struct sample_id		sample_id;
	 * };
	 */
	PERF_RECORD_SWITCH			= 14,

/*
	 * CPU-wide version of PERF_RECORD_SWITCH with next_prev_pid and
	 * next_prev_tid that are the next (switching out) or previous
	 * (switching in) pid/tid.
	 *
	 * struct {
	 *	struct perf_event_header	header;
	 *	u32				next_prev_pid;
	 *	u32				next_prev_tid;
	 *	struct sample_id		sample_id;
	 * };
	 */
	PERF_RECORD_SWITCH_CPU_WIDE		= 15,

/*
	 * struct {
	 *	struct perf_event_header	header;
	 *	u32				pid;
	 *	u32				tid;
	 *	u64				nr_namespaces;
	 *	{ u64				dev, inode; } [nr_namespaces];
	 *	struct sample_id		sample_id;
	 * };
	 */
	PERF_RECORD_NAMESPACES			= 16,

/*
	 * Record ksymbol register/unregister events:
	 *
	 * struct {
	 *	struct perf_event_header	header;
	 *	u64				addr;
	 *	u32				len;
	 *	u16				ksym_type;
	 *	u16				flags;
	 *	char				name[];
	 *	struct sample_id		sample_id;
	 * };
	 */
	PERF_RECORD_KSYMBOL			= 17,

/*
	 * Record bpf events:
	 *  enum perf_bpf_event_type {
	 *	PERF_BPF_EVENT_UNKNOWN		= 0,
	 *	PERF_BPF_EVENT_PROG_LOAD	= 1,
	 *	PERF_BPF_EVENT_PROG_UNLOAD	= 2,
	 *  };
	 *
	 * struct {
	 *	struct perf_event_header	header;
	 *	u16				type;
	 *	u16				flags;
	 *	u32				id;
	 *	u8				tag[BPF_TAG_SIZE];
	 *	struct sample_id		sample_id;
	 * };
	 */
	PERF_RECORD_BPF_EVENT			= 18,

/*
	 * struct {
	 *	struct perf_event_header	header;
	 *	u64				id;
	 *	char				path[];
	 *	struct sample_id		sample_id;
	 * };
	 */
	PERF_RECORD_CGROUP			= 19,

/*
	 * Records changes to kernel text i.e. self-modified code. 'old_len' is
	 * the number of old bytes, 'new_len' is the number of new bytes. Either
	 * 'old_len' or 'new_len' may be zero to indicate, for example, the
	 * addition or removal of a trampoline. 'bytes' contains the old bytes
	 * followed immediately by the new bytes.
	 *
	 * struct {
	 *	struct perf_event_header	header;
	 *	u64				addr;
	 *	u16				old_len;
	 *	u16				new_len;
	 *	u8				bytes[];
	 *	struct sample_id		sample_id;
	 * };
	 */
	PERF_RECORD_TEXT_POKE			= 20,

PERF_RECORD_MAX,			/* non-ABI */
};

enum perf_record_ksymbol_type {
	PERF_RECORD_KSYMBOL_TYPE_UNKNOWN	= 0,
	PERF_RECORD_KSYMBOL_TYPE_BPF		= 1,
	/*
	 * Out of line code such as kprobe-replaced instructions or optimized
	 * kprobes or ftrace trampolines.
	 */
	PERF_RECORD_KSYMBOL_TYPE_OOL		= 2,
	PERF_RECORD_KSYMBOL_TYPE_MAX		/* non-ABI */
};

#define PERF_RECORD_KSYMBOL_FLAGS_UNREGISTER	(1 << 0)

enum perf_bpf_event_type {
	PERF_BPF_EVENT_UNKNOWN		= 0,
	PERF_BPF_EVENT_PROG_LOAD	= 1,
	PERF_BPF_EVENT_PROG_UNLOAD	= 2,
	PERF_BPF_EVENT_MAX,		/* non-ABI */
};

#define PERF_MAX_STACK_DEPTH		127
#define PERF_MAX_CONTEXTS_PER_STACK	  8

enum perf_callchain_context {
	PERF_CONTEXT_HV			= (__u64)-32,
	PERF_CONTEXT_KERNEL		= (__u64)-128,
	PERF_CONTEXT_USER		= (__u64)-512,

PERF_CONTEXT_GUEST		= (__u64)-2048,
	PERF_CONTEXT_GUEST_KERNEL	= (__u64)-2176,
	PERF_CONTEXT_GUEST_USER		= (__u64)-2560,

PERF_CONTEXT_MAX		= (__u64)-4095,
};

/**
 * PERF_RECORD_AUX::flags bits
 */
#define PERF_AUX_FLAG_TRUNCATED			0x01	/* record was truncated to fit */
#define PERF_AUX_FLAG_OVERWRITE			0x02	/* snapshot from overwrite mode */
#define PERF_AUX_FLAG_PARTIAL			0x04	/* record contains gaps */
#define PERF_AUX_FLAG_COLLISION			0x08	/* sample collided with another */
#define PERF_AUX_FLAG_PMU_FORMAT_TYPE_MASK	0xff00	/* PMU specific trace format type */

/* CoreSight PMU AUX buffer formats */
#define PERF_AUX_FLAG_CORESIGHT_FORMAT_CORESIGHT	0x0000 /* Default for backward compatibility */
#define PERF_AUX_FLAG_CORESIGHT_FORMAT_RAW		0x0100 /* Raw format of the source */

#define PERF_FLAG_FD_NO_GROUP		(1UL << 0)
#define PERF_FLAG_FD_OUTPUT		(1UL << 1)
#define PERF_FLAG_PID_CGROUP		(1UL << 2) /* pid=cgroup id, per-cpu mode only */
#define PERF_FLAG_FD_CLOEXEC		(1UL << 3) /* O_CLOEXEC */

#if defined(__LITTLE_ENDIAN_BITFIELD)
union perf_mem_data_src {
	__u64 val;
	struct {
		__u64   mem_op:5,	/* type of opcode */
			mem_lvl:14,	/* memory hierarchy level */
			mem_snoop:5,	/* snoop mode */
			mem_lock:2,	/* lock instr */
			mem_dtlb:7,	/* tlb access */
			mem_lvl_num:4,	/* memory hierarchy level number */
			mem_remote:1,   /* remote */
			mem_snoopx:2,	/* snoop mode, ext */
			mem_blk:3,	/* access blocked */
			mem_rsvd:21;
	};
};
#elif defined(__BIG_ENDIAN_BITFIELD)
union perf_mem_data_src {
	__u64 val;
	struct {
		__u64	mem_rsvd:21,
			mem_blk:3,	/* access blocked */
			mem_snoopx:2,	/* snoop mode, ext */
			mem_remote:1,   /* remote */
			mem_lvl_num:4,	/* memory hierarchy level number */
			mem_dtlb:7,	/* tlb access */
			mem_lock:2,	/* lock instr */
			mem_snoop:5,	/* snoop mode */
			mem_lvl:14,	/* memory hierarchy level */
			mem_op:5;	/* type of opcode */
	};
};
#else
#error "Unknown endianness"
#endif

/* type of opcode (load/store/prefetch,code) */
#define PERF_MEM_OP_NA		0x01 /* not available */
#define PERF_MEM_OP_LOAD	0x02 /* load instruction */
#define PERF_MEM_OP_STORE	0x04 /* store instruction */
#define PERF_MEM_OP_PFETCH	0x08 /* prefetch */
#define PERF_MEM_OP_EXEC	0x10 /* code (execution) */
#define PERF_MEM_OP_SHIFT	0

/* memory hierarchy (memory level, hit or miss) */
#define PERF_MEM_LVL_NA		0x01  /* not available */
#define PERF_MEM_LVL_HIT	0x02  /* hit level */
#define PERF_MEM_LVL_MISS	0x04  /* miss level  */
#define PERF_MEM_LVL_L1		0x08  /* L1 */
#define PERF_MEM_LVL_LFB	0x10  /* Line Fill Buffer */
#define PERF_MEM_LVL_L2		0x20  /* L2 */
#define PERF_MEM_LVL_L3		0x40  /* L3 */
#define PERF_MEM_LVL_LOC_RAM	0x80  /* Local DRAM */
#define PERF_MEM_LVL_REM_RAM1	0x100 /* Remote DRAM (1 hop) */
#define PERF_MEM_LVL_REM_RAM2	0x200 /* Remote DRAM (2 hops) */
#define PERF_MEM_LVL_REM_CCE1	0x400 /* Remote Cache (1 hop) */
#define PERF_MEM_LVL_REM_CCE2	0x800 /* Remote Cache (2 hops) */
#define PERF_MEM_LVL_IO		0x1000 /* I/O memory */
#define PERF_MEM_LVL_UNC	0x2000 /* Uncached memory */
#define PERF_MEM_LVL_SHIFT	5

#define PERF_MEM_REMOTE_REMOTE	0x01  /* Remote */
#define PERF_MEM_REMOTE_SHIFT	37

#define PERF_MEM_LVLNUM_L1	0x01 /* L1 */
#define PERF_MEM_LVLNUM_L2	0x02 /* L2 */
#define PERF_MEM_LVLNUM_L3	0x03 /* L3 */
#define PERF_MEM_LVLNUM_L4	0x04 /* L4 */
/* 5-0xa available */
#define PERF_MEM_LVLNUM_ANY_CACHE 0x0b /* Any cache */
#define PERF_MEM_LVLNUM_LFB	0x0c /* LFB */
#define PERF_MEM_LVLNUM_RAM	0x0d /* RAM */
#define PERF_MEM_LVLNUM_PMEM	0x0e /* PMEM */
#define PERF_MEM_LVLNUM_NA	0x0f /* N/A */

#define PERF_MEM_LVLNUM_SHIFT	33

/* snoop mode */
#define PERF_MEM_SNOOP_NA	0x01 /* not available */
#define PERF_MEM_SNOOP_NONE	0x02 /* no snoop */
#define PERF_MEM_SNOOP_HIT	0x04 /* snoop hit */
#define PERF_MEM_SNOOP_MISS	0x08 /* snoop miss */
#define PERF_MEM_SNOOP_HITM	0x10 /* snoop hit modified */
#define PERF_MEM_SNOOP_SHIFT	19

#define PERF_MEM_SNOOPX_FWD	0x01 /* forward */
/* 1 free */
#define PERF_MEM_SNOOPX_SHIFT  38

/* locked instruction */
#define PERF_MEM_LOCK_NA	0x01 /* not available */
#define PERF_MEM_LOCK_LOCKED	0x02 /* locked transaction */
#define PERF_MEM_LOCK_SHIFT	24

/* TLB access */
#define PERF_MEM_TLB_NA		0x01 /* not available */
#define PERF_MEM_TLB_HIT	0x02 /* hit level */
#define PERF_MEM_TLB_MISS	0x04 /* miss level */
#define PERF_MEM_TLB_L1		0x08 /* L1 */
#define PERF_MEM_TLB_L2		0x10 /* L2 */
#define PERF_MEM_TLB_WK		0x20 /* Hardware Walker*/
#define PERF_MEM_TLB_OS		0x40 /* OS fault handler */
#define PERF_MEM_TLB_SHIFT	26

/* Access blocked */
#define PERF_MEM_BLK_NA		0x01 /* not available */
#define PERF_MEM_BLK_DATA	0x02 /* data could not be forwarded */
#define PERF_MEM_BLK_ADDR	0x04 /* address conflict */
#define PERF_MEM_BLK_SHIFT	40

#define PERF_MEM_S(a, s) \
	(((__u64)PERF_MEM_##a##_##s) << PERF_MEM_##a##_SHIFT)

/*
 * single taken branch record layout:
 *
 *      from: source instruction (may not always be a branch insn)
 *        to: branch target
 *   mispred: branch target was mispredicted
 * predicted: branch target was predicted
 *
 * support for mispred, predicted is optional. In case it
 * is not supported mispred = predicted = 0.
 *
 *     in_tx: running in a hardware transaction
 *     abort: aborting a hardware transaction
 *    cycles: cycles from last branch (or 0 if not supported)
 *      type: branch type
 */
struct perf_branch_entry {
	__u64	from;
	__u64	to;
	__u64	mispred:1,  /* target mispredicted */
		predicted:1,/* target predicted */
		in_tx:1,    /* in transaction */
		abort:1,    /* transaction abort */
		cycles:16,  /* cycle count to last branch */
		type:4,     /* branch type */
		reserved:40;
};

union perf_sample_weight {
	__u64		full;
#if defined(__LITTLE_ENDIAN_BITFIELD)
	struct {
		__u32	var1_dw;
		__u16	var2_w;
		__u16	var3_w;
	};
#elif defined(__BIG_ENDIAN_BITFIELD)
	struct {
		__u16	var3_w;
		__u16	var2_w;
		__u32	var1_dw;
	};
#else
#error "Unknown endianness"
#endif
};

#endif /* _LINUX_PERF_EVENT_H */

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