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usr /
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linux-headers-4.15.0-213 /
include /
linux /
[ HOME SHELL ]
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amba
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drwxr-xr-x
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byteorder
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usb
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uwb
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wimax
[ DIR ]
drwxr-xr-x
8250_pci.h
1.01
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a.out.h
354
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acct.h
2.49
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acpi.h
36.89
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acpi_dma.h
3.22
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acpi_iort.h
2.15
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acpi_pmtmr.h
674
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adb.h
1.79
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adfs_fs.h
574
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aer.h
1.71
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agp_backend.h
3.45
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agpgart.h
3.82
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ahci-remap.h
607
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ahci_platform.h
1.67
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aio.h
673
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alarmtimer.h
1.83
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altera_jtaguart.h
379
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altera_uart.h
397
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amd-iommu.h
6.78
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amifd.h
1.99
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amifdreg.h
2.65
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anon_inodes.h
494
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apm-emulation.h
1.54
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apm_bios.h
2.68
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apple-gmux.h
1.42
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apple_bl.h
498
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arch_topology.h
840
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arm-cci.h
2.01
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arm-smccc.h
12.79
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arm_sdei.h
2.33
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asn1.h
1.99
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asn1_ber_bytecode.h
2.72
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asn1_decoder.h
675
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assoc_array.h
3.07
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assoc_array_priv.h
5.49
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async.h
1.65
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async_tx.h
6.81
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ata.h
33.61
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ata_platform.h
729
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atalk.h
4.36
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ath9k_platform.h
1.44
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atm.h
287
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atm_suni.h
253
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atm_tcp.h
511
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atmdev.h
10.21
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atmel-mci.h
1.4
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atmel-ssc.h
9.74
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atmel_pdc.h
1.47
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atmel_tc.h
11.33
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atomic.h
30.5
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attribute_container.h
2.47
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audit.h
17.22
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auto_dev-ioctl.h
454
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auto_fs.h
436
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auxvec.h
304
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average.h
2.42
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b1pcmcia.h
666
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backing-dev-defs.h
8.53
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backing-dev.h
13.8
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backlight.h
5.3
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badblocks.h
2.14
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balloon_compaction.h
7.2
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bcd.h
559
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bch.h
2.6
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bcm47xx_nvram.h
1.22
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bcm47xx_sprom.h
600
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bcm47xx_wdt.h
555
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bcm963xx_nvram.h
2.96
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bcm963xx_tag.h
3.6
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bfin_mac.h
559
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binfmts.h
4.77
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bio.h
20.17
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bit_spinlock.h
2.3
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bitfield.h
3.2
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bitmap.h
16.68
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bitops.h
6.69
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bitrev.h
2.53
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bits.h
883
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blk-cgroup.h
22.2
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blk-mq-pci.h
247
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blk-mq-rdma.h
232
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blk-mq-virtio.h
288
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blk-mq.h
9.09
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blk_types.h
10.52
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blkdev.h
58.96
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blkpg.h
436
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blktrace_api.h
3.87
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blockgroup_lock.h
810
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bma150.h
1.89
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bootmem.h
11.7
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bottom_half.h
803
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bpf-cgroup.h
4.53
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bpf.h
18.51
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bpf_trace.h
196
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bpf_types.h
1.88
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bpf_verifier.h
6.76
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brcmphy.h
9.88
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bsearch.h
275
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bsg-lib.h
2.13
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bsg.h
773
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btree-128.h
2.67
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btree-type.h
3.9
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btree.h
6.83
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btrfs.h
145
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buffer_head.h
14.38
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bug.h
1.92
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build_bug.h
3.15
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bvec.h
4.39
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c2port.h
1.49
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cache.h
2.13
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cacheinfo.h
3.27
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capability.h
7.6
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cb710.h
5.69
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cciss_ioctl.h
1.03
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ccp.h
18.26
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cdev.h
845
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cdrom.h
8.75
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cfag12864b.h
2.1
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cgroup-defs.h
25.38
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cgroup.h
26.12
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cgroup_rdma.h
1.33
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cgroup_subsys.h
1.17
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circ_buf.h
1.08
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cleancache.h
3.89
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clk-provider.h
34.29
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clk.h
19.38
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clkdev.h
1.54
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clock_cooling.h
2.06
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clockchips.h
7.27
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clocksource.h
8.31
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cm4000_cs.h
199
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cma.h
1.19
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cmdline-parser.h
1.21
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cn_proc.h
1.85
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cnt32_to_63.h
3.6
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coda.h
2.16
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coda_psdev.h
2.98
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compaction.h
7.1
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compat.h
27.39
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compiler-clang.h
1.31
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compiler-gcc.h
12.6
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compiler-intel.h
1.3
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compiler.h
10.06
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compiler_types.h
7.5
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completion.h
4.05
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component.h
1.37
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concap.h
3.69
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configfs.h
9.22
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connector.h
2.43
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console.h
6.72
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console_struct.h
6.87
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consolemap.h
1.04
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const.h
157
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container.h
668
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context_tracking.h
4.43
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context_tracking_state.h
1.39
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cordic.h
1.75
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coredump.h
783
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coresight-pmu.h
1.44
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coresight-stm.h
152
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coresight.h
9.86
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count_zeros.h
1.62
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cper.h
16.11
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cpu.h
6.86
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cpu_cooling.h
3.59
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cpu_pm.h
2.78
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cpu_rmap.h
1.86
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cpufeature.h
1.85
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cpufreq.h
27.62
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cpuhotplug.h
12.05
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cpuidle.h
8.68
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cpumask.h
25.38
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cpuset.h
7.07
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crash_core.h
2.99
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crash_dump.h
2.98
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crc-ccitt.h
369
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crc-itu-t.h
613
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crc-t10dif.h
415
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crc16.h
622
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crc32.h
2.83
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crc32c.h
293
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crc4.h
192
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crc7.h
316
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crc8.h
3.65
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cred.h
12.29
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crypto.h
55.52
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cryptohash.h
319
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cs5535.h
6.28
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ctype.h
1.75
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cuda.h
501
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cyclades.h
10.36
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davinci_emac.h
1.12
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dax.h
3.65
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dca.h
2.63
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dcache.h
18.78
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dccp.h
10.73
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dcookies.h
1.3
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debug_locks.h
1.51
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debugfs.h
11.09
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debugobjects.h
3.89
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delay.h
1.83
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delayacct.h
5.17
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delayed_call.h
709
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dell-led.h
128
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devcoredump.h
2.78
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devfreq-event.h
5.64
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devfreq.h
12.53
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devfreq_cooling.h
3.54
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device-mapper.h
17.85
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device.h
55.51
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device_cgroup.h
1.86
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devpts_fs.h
1.28
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digsig.h
1.35
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dim.h
8.98
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dio.h
10.97
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dirent.h
216
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dlm.h
6.01
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dlm_plock.h
678
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dm-dirty-log.h
3.94
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dm-io.h
1.93
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dm-kcopyd.h
2.88
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dm-region-hash.h
3.11
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dm9000.h
1.11
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dma-buf.h
14.7
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dma-contiguous.h
4.48
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dma-debug.h
5.61
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dma-direction.h
338
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dma-fence-array.h
2.49
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dma-fence.h
17.29
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dma-iommu.h
3.62
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dma-mapping.h
24.61
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dma_remapping.h
1.46
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dmaengine.h
46.04
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dmapool.h
1.09
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dmar.h
7.94
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dmi.h
4.08
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dnotify.h
1.02
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dns_resolver.h
1.31
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dqblk_qtree.h
2.19
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dqblk_v1.h
327
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dqblk_v2.h
406
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drbd.h
10.67
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drbd_genl.h
21.49
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drbd_genl_api.h
1.77
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drbd_limits.h
7.82
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ds2782_battery.h
158
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dtlk.h
3.5
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dw_apb_timer.h
1.7
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dynamic_debug.h
5.08
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dynamic_queue_limits.h
3.7
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earlycpio.h
359
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ecryptfs.h
3.82
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edac.h
20.26
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edd.h
1.43
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edma.h
807
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eeprom_93cx6.h
2.94
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eeprom_93xx46.h
879
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efi-bgrt.h
644
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efi.h
49.13
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efs_vh.h
1.55
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eisa.h
2.96
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elevator.h
9.26
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elf-fdpic.h
2.18
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elf-randomize.h
583
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elf.h
1.53
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elfcore-compat.h
1.24
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elfcore.h
2.52
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elfnote.h
3.54
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enclosure.h
4.6
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err.h
1.55
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errno.h
1.34
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errqueue.h
524
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errseq.h
373
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etherdevice.h
15.65
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ethtool.h
17.3
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eventfd.h
2.36
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eventpoll.h
2.16
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evm.h
2.65
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export.h
3.88
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exportfs.h
7.45
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ext2_fs.h
967
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extable.h
999
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extcon-provider.h
4.33
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extcon.h
10.4
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f2fs_fs.h
17.51
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f75375s.h
541
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fanotify.h
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28.74
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fbcon.h
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988
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490
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1.02
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3.28
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609
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2.18
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27.5
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167
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firewire.h
13.4
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firmware-map.h
1.32
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firmware.h
2.34
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fixp-arith.h
4.41
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1.61
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4.31
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2.81
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1.29
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fmc.h
9.65
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1.6
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813
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freezer.h
8.67
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frontswap.h
2.87
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fs.h
110.97
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3.38
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811
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1.49
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18.4
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27.54
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8.93
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4.45
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6.1
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2.37
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fsl-diu-fb.h
4.08
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fsl_devices.h
4.32
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fsl_hypervisor.h
2.76
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fsl_ifc.h
25.13
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fsnotify.h
7.43
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fsnotify_backend.h
16.66
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ftrace.h
29.91
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ftrace_irq.h
823
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futex.h
2.4
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fwnode.h
4.41
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gameport.h
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gcd.h
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genalloc.h
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genetlink.h
1.39
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genhd.h
22.77
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genl_magic_func.h
12.05
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genl_magic_struct.h
7.66
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getcpu.h
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gfp.h
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glob.h
256
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goldfish.h
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gpio-pxa.h
571
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gpio.h
5.19
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gpio_keys.h
1.63
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hardirq.h
1.95
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hash.h
3
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hdlc.h
3.33
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hdlcdrv.h
6.32
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hdmi.h
9.36
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hid-debug.h
2.07
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hid-roccat.h
688
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hid-sensor-hub.h
9.25
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hid-sensor-ids.h
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hid.h
35.93
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highmem.h
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highuid.h
3.12
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18.42
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hil_mlc.h
5.13
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1.23
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hmm.h
18.19
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host1x.h
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hp_sdc.h
14.02
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hpet.h
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hrtimer.h
14.02
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htcpld.h
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10.1
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17
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hugetlb_cgroup.h
2.93
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hugetlb_inline.h
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hwmon-sysfs.h
1.98
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hwmon-vid.h
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hwmon.h
12.07
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hwspinlock.h
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hyperv.h
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hypervisor.h
400
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2.24
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i2c-algo-pca.h
2.89
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i2c-algo-pcf.h
1.88
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i2c-dev.h
1.03
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1.19
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i2c-mux-gpio.h
1.35
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i2c-mux.h
2.29
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i2c-ocores.h
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1.21
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441
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i2c-pnx.h
923
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438
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1.94
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i2c-xiic.h
1.41
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i2c.h
30.91
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1.95
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2.14
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icmp.h
863
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idr.h
7.82
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ieee80211.h
83.19
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ieee802154.h
11.5
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if_arp.h
1.86
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if_bridge.h
2.65
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if_eql.h
1.07
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if_ether.h
1.47
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if_fddi.h
3.44
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if_frad.h
2.87
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if_link.h
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if_ltalk.h
188
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if_macvlan.h
2.2
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if_phonet.h
319
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if_pppol2tp.h
727
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if_pppox.h
3.05
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if_tap.h
2.24
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if_team.h
7.65
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if_tun.h
1.14
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if_tunnel.h
409
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if_vlan.h
19.2
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igmp.h
4.15
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ihex.h
1.95
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ima.h
2.53
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imx-media.h
811
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in.h
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in6.h
1.85
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inet.h
2.8
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inet_diag.h
2.42
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inetdevice.h
8.25
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init.h
9.1
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init_ohci1394_dma.h
196
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init_task.h
7.84
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initrd.h
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inotify.h
696
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input-polldev.h
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input.h
18.7
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integrity.h
1.05
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intel-iommu.h
16.85
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intel-pti.h
1.56
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intel-svm.h
4.96
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interrupt.h
21.15
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interval_tree.h
831
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interval_tree_generic.h
8
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io-64-nonatomic-hi-lo.h
1.14
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io-64-nonatomic-lo-hi.h
1.14
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io-mapping.h
4.36
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io.h
5.86
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ioc3.h
3.14
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ioc4.h
5.78
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iocontext.h
4.76
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iomap.h
3.95
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iommu-common.h
1.41
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iommu-helper.h
950
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iommu.h
21.74
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iopoll.h
5.72
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ioport.h
10.74
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ioprio.h
1.96
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iova.h
7.03
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ip.h
1.07
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ipack.h
8.85
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ipc.h
695
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ipc_namespace.h
4.81
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ipmi-fru.h
3.64
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ipmi.h
11.44
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ipmi_smi.h
8.9
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ipv6.h
8.92
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ipv6_route.h
594
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irq.h
39.04
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irq_cpustat.h
949
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irq_poll.h
575
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irq_sim.h
1.16
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irq_work.h
1.3
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irqbypass.h
3.59
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irqchip.h
1.54
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irqdesc.h
8.15
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irqdomain.h
19.21
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irqflags.h
4.82
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irqhandler.h
362
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irqnr.h
856
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irqreturn.h
503
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isa.h
2.12
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isapnp.h
3.8
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iscsi_boot_sysfs.h
4.09
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iscsi_ibft.h
1.28
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22.99
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1.27
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6.64
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isdnif.h
19.26
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isicom.h
1.49
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jbd2.h
47.14
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jhash.h
4.62
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jiffies.h
15.4
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journal-head.h
2.87
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joystick.h
1.28
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jump_label.h
13.32
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jump_label_ratelimit.h
1.12
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jz4740-adc.h
1023
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jz4780-nemc.h
1.16
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kallsyms.h
3.59
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kasan-checks.h
441
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kasan.h
4.48
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kbd_diacr.h
198
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kbd_kern.h
3.84
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kbuild.h
380
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kconfig.h
2.53
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kcore.h
664
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kcov.h
802
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kdb.h
7.3
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kdebug.h
487
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kdev_t.h
1.8
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kern_levels.h
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kernel-page-flags.h
505
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kernel.h
31.31
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kernel_stat.h
2.5
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kernelcapi.h
4.45
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kernfs.h
16.88
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kexec.h
10.06
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key-type.h
6.16
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key.h
12.75
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keyboard.h
665
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kfifo.h
24.84
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kgdb.h
10.72
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khugepaged.h
2.36
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klist.h
1.88
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kmemleak.h
3.86
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kmod.h
1.71
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kmsg_dump.h
2.85
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kobj_map.h
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kobject.h
7.62
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kobject_ns.h
1.9
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kprobes.h
14.71
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kref.h
3.28
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ks0108.h
1.57
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ks8842.h
1.19
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ks8851_mll.h
1.04
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ksm.h
2.89
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kthread.h
6.7
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ktime.h
6.71
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kvm_host.h
37.83
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kvm_irqfd.h
2.39
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kvm_para.h
284
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kvm_types.h
1.67
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l2tp.h
261
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lapb.h
1.71
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latencytop.h
1.18
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lcd.h
4.19
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lcm.h
275
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led-class-flash.h
5.42
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led-lm3530.h
3.7
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leds-bd2802.h
642
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leds-lp3944.h
1.07
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leds-lp3952.h
2.5
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leds-pca9532.h
1.01
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leds-regulator.h
1.29
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leds-tca6507.h
1.02
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leds.h
13.67
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leds_pwm.h
407
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libata.h
64.88
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libfdt.h
244
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libfdt_env.h
494
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libgcc.h
1.07
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libnvdimm.h
7.16
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libps2.h
1.75
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license.h
374
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lightnvm.h
10.95
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linkage.h
2.64
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linux_logo.h
2.06
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lis3lv02d.h
5
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list.h
23.71
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list_bl.h
4.19
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list_lru.h
6.29
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list_nulls.h
3.47
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list_sort.h
277
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livepatch.h
6.94
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llc.h
749
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llist.h
9.15
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lockdep.h
18.61
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lockref.h
1.45
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log2.h
5.48
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logic_pio.h
3.24
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lp.h
2.76
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lru_cache.h
12.42
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lsm_audit.h
2.73
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lsm_hooks.h
88.04
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lz4.h
26.44
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lzo.h
1.37
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mISDNdsp.h
1.19
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mISDNhw.h
5.78
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mISDNif.h
14.91
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mailbox_client.h
1.79
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mailbox_controller.h
5.4
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maple.h
2.71
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marvell_phy.h
1.17
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math64.h
6.42
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max17040_battery.h
474
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mbcache.h
1.57
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mbus.h
3.09
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mc146818rtc.h
4.46
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mc6821.h
1.18
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mcb.h
3.88
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mdev.h
4.9
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mdio-bitbang.h
1.18
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mdio-mux.h
1021
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mdio.h
9.01
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mei_cl_bus.h
3.28
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mem_encrypt.h
1.21
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memblock.h
14.6
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memcontrol.h
29.63
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memory.h
4.52
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memory_hotplug.h
10.29
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mempolicy.h
7.44
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mempool.h
2.39
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memremap.h
7.15
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memstick.h
9.73
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mic_bus.h
3.2
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micrel_phy.h
1.42
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microchipphy.h
2.84
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migrate.h
10.02
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migrate_mode.h
758
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mii.h
8.74
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miscdevice.h
2.81
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mm-arch-hooks.h
679
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mm.h
85.89
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mm_inline.h
3.44
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mm_types.h
19.25
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mm_types_task.h
2.4
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mman.h
3.26
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mmdebug.h
2.32
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mmiotrace.h
3.05
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mmu_context.h
378
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mmu_notifier.h
15.84
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mmzone.h
39.66
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mnt_namespace.h
617
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mod_devicetable.h
19.33
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module.h
22.23
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moduleloader.h
2.72
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moduleparam.h
19.42
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mount.h
3.45
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mpage.h
761
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mpi.h
5.17
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mpls.h
394
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mpls_iptunnel.h
178
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mroute.h
4.71
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mroute6.h
3.27
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msdos_fs.h
273
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msg.h
1.02
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msi.h
11.79
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mutex.h
6.91
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mv643xx.h
52.4
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mv643xx_eth.h
1.95
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mv643xx_i2c.h
545
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mvebu-pmsu.h
520
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mxm-wmi.h
1.05
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n_r3964.h
4.06
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namei.h
3.41
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nd.h
5.71
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net.h
11.33
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netdev_features.h
9.39
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netdevice.h
140.44
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netfilter.h
11.74
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netfilter_bridge.h
1.82
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netfilter_defs.h
239
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netfilter_ingress.h
1.44
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netfilter_ipv4.h
424
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netfilter_ipv6.h
1.43
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netlink.h
6.87
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netpoll.h
2.69
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nfs.h
1.31
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nfs3.h
260
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nfs4.h
17.5
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nfs_fs.h
16.12
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nfs_fs_i.h
308
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nfs_fs_sb.h
8.81
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nfs_iostat.h
4.18
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nfs_page.h
6.26
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nfs_xdr.h
38.79
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nfsacl.h
1.15
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nl802154.h
4.23
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nls.h
3.08
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nmi.h
6.56
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node.h
3
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nodemask.h
17.08
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nospec.h
2.21
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notifier.h
7.72
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ns_common.h
235
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nsc_gpio.h
1.42
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nsproxy.h
2.48
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ntb.h
46.52
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ntb_transport.h
3.8
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nubus.h
4.13
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numa.h
292
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nvme-fc-driver.h
38.22
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nvme-fc.h
8.34
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nvme-rdma.h
2.44
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nvme.h
26.61
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nvmem-consumer.h
4.35
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nvmem-provider.h
1.52
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nvram.h
495
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of.h
40.4
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of_address.h
4.47
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of_device.h
3.04
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of_dma.h
2.45
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of_fdt.h
4.19
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of_gpio.h
4.39
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of_graph.h
3.56
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of_iommu.h
1
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of_irq.h
3.6
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of_mdio.h
2.98
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of_net.h
708
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of_pci.h
2.23
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of_pdt.h
1.4
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of_platform.h
4.1
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of_reserved_mem.h
2.35
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oid_registry.h
3.87
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olpc-ec.h
1.08
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omap-dma.h
10.5
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omap-dmaengine.h
583
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omap-gpmc.h
2.22
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omap-iommu.h
520
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omap-mailbox.h
777
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omapfb.h
1.22
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once.h
2.8
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oom.h
3.15
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openvswitch.h
844
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oprofile.h
6.1
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osq_lock.h
1.04
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overflow.h
9.26
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oxu210hp.h
197
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padata.h
5.82
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page-flags-layout.h
2.99
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page-flags.h
23.91
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page-isolation.h
1.9
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page_counter.h
1.46
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page_ext.h
1.89
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page_idle.h
2.62
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page_owner.h
2.3
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page_ref.h
4.99
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pageblock-flags.h
3.28
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pagemap.h
19.02
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pagevec.h
2.3
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parman.h
2.87
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parport.h
17.84
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parport_pc.h
6.56
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parser.h
1.04
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pata_arasan_cf_data.h
1.22
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patchkey.h
757
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path.h
572
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pch_dma.h
999
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pci-acpi.h
3.44
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pci-aspm.h
882
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pci-ats.h
1.39
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pci-dma-compat.h
4.41
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pci-dma.h
454
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pci-ecam.h
2.54
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pci-ep-cfs.h
1.09
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pci-epc.h
5.38
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pci-epf.h
4.83
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pci.h
81.59
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pci_hotplug.h
6.91
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pci_ids.h
120.12
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pcieport_if.h
2.35
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pda_power.h
1.12
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pe.h
15.6
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percpu-defs.h
18.13
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percpu-refcount.h
9.93
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percpu-rwsem.h
4.09
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percpu.h
5.02
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percpu_counter.h
4.26
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percpu_ida.h
2.32
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perf_event.h
38.78
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perf_regs.h
1.02
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personality.h
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pfn.h
666
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pfn_t.h
3.23
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phonet.h
1.12
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phy.h
31.11
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phy_fixed.h
1.64
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phy_led_triggers.h
1.46
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phylink.h
5.06
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pid.h
5.77
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pid_namespace.h
2.33
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pim.h
2.67
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pipe_fs_i.h
6.46
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pkeys.h
916
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pktcdvd.h
5.87
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pl320-ipc.h
758
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platform_device.h
12.43
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plist.h
8.69
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pm-trace.h
940
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pm.h
34.21
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pm2301_charger.h
1.68
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pm_clock.h
2.45
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pm_domain.h
9.03
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pm_opp.h
10.08
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pm_qos.h
8.51
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pm_runtime.h
8.52
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pm_wakeirq.h
1.31
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pm_wakeup.h
6.61
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pmbus.h
1.58
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pmu.h
2.34
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pnfs_osd_xdr.h
9.27
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pnp.h
14.89
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poison.h
2.66
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poll.h
3.24
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posix-clock.h
4.55
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posix-timers.h
3.55
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posix_acl.h
3.06
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posix_acl_xattr.h
1.58
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power_supply.h
13.41
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powercap.h
12.59
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ppp-comp.h
3.1
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ppp_channel.h
3.07
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ppp_defs.h
454
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pps-gpio.h
1.01
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pps_kernel.h
3.55
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pr.h
566
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prandom.h
2.81
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preempt.h
9.33
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prefetch.h
1.54
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prime_numbers.h
1.35
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printk.h
15.24
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proc_fs.h
3.26
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proc_ns.h
2.44
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processor.h
2.14
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profile.h
2.68
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projid.h
2.34
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property.h
9.79
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psci.h
1.87
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pstore.h
7.58
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pstore_ram.h
2.89
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pti.h
240
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ptp_classify.h
2.89
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ptp_clock_kernel.h
8.56
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ptr_ring.h
16.29
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ptrace.h
14.57
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purgatory.h
589
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pvclock_gtod.h
548
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pwm.h
16.8
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pwm_backlight.h
740
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pxa168_eth.h
728
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pxa2xx_ssp.h
9.8
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qcom_scm.h
4.12
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qnx6_fs.h
3.27
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quicklist.h
2.13
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quota.h
18.87
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quotaops.h
10.17
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radix-tree.h
21.77
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raid_class.h
2.08
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ramfs.h
762
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random.h
3.98
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range.h
651
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ras.h
1.18
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ratelimit.h
2.81
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rational.h
639
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rbtree.h
5.36
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rbtree_augmented.h
8.67
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rbtree_latch.h
6.62
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rcu_node_tree.h
4.34
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rcu_segcblist.h
3.26
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rcu_sync.h
2.57
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rculist.h
23.53
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rculist_bl.h
4.36
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rculist_nulls.h
6.17
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rcupdate.h
33.26
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rcupdate_wait.h
1.63
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rcutiny.h
3.64
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rcutree.h
3.56
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rcuwait.h
1.82
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reboot-mode.h
600
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reboot.h
2.05
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reciprocal_div.h
1.01
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refcount.h
2.6
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regmap.h
42.34
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regset.h
15.08
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relay.h
8.84
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remoteproc.h
18.48
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reservation.h
8.12
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reset-controller.h
2.16
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reset.h
13.69
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resource.h
339
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resource_ext.h
2.22
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restart_block.h
1.11
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rfkill.h
9.89
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rhashtable.h
38.24
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ring_buffer.h
6.79
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rio.h
19.23
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rio_drv.h
14.71
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rio_ids.h
1.29
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rio_regs.h
19.27
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rmap.h
9.08
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rmi.h
12.13
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rndis.h
16.86
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rodata_test.h
559
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root_dev.h
579
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rpmsg.h
8.37
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rslib.h
2.99
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rtc.h
8.71
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rtmutex.h
3.47
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rtnetlink.h
4.27
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rtsx_common.h
1.44
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rtsx_pci.h
40.14
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rtsx_usb.h
15.95
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rwlock.h
4.35
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rwlock_api_smp.h
7.67
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rwlock_types.h
1.12
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rwsem-spinlock.h
1.58
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rwsem.h
6
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s3c_adc_battery.h
971
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sa11x0-dma.h
572
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sbitmap.h
13.56
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scatterlist.h
13.29
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scc.h
2.84
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sched.h
47.45
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sched_clock.h
661
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scif.h
58.85
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scpi_protocol.h
2.58
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screen_info.h
191
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sctp.h
21.92
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scx200.h
1.82
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scx200_gpio.h
2.38
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sdb.h
4.17
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sdla.h
6.9
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seccomp.h
2.66
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securebits.h
239
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security.h
47.81
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sed-opal.h
1.94
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seg6.h
121
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seg6_genl.h
136
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seg6_hmac.h
136
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seg6_iptunnel.h
148
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seg6_local.h
100
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selection.h
1.41
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selinux.h
910
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sem.h
2.02
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semaphore.h
1.36
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seq_buf.h
3.15
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seq_file.h
6.68
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seq_file_net.h
713
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seqlock.h
16.48
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seqno-fence.h
3.96
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serdev.h
9.48
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serial.h
630
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serial_8250.h
6.01
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serial_bcm63xx.h
4.73
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serial_core.h
17.72
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serial_max3100.h
1.39
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serial_pnx8xxx.h
2.61
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serial_s3c.h
9.24
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serial_sci.h
1.57
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serio.h
4.42
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set_memory.h
740
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sfi.h
5.75
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sfi_acpi.h
3.39
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sfp.h
10.4
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sh_clk.h
5.96
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sh_dma.h
3.61
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sh_eth.h
417
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sh_intc.h
3.42
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sh_timer.h
172
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shdma-base.h
4.41
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shm.h
1.71
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shmem_fs.h
5.33
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Code Editor : perf_event.h
/* * 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 <uapi/linux/perf_event.h> #include <uapi/linux/bpf_perf_event.h> /* * Kernel-internal data types and definitions: */ #ifdef CONFIG_PERF_EVENTS # include <asm/perf_event.h> # include <asm/local64.h> #endif struct perf_guest_info_callbacks { int (*is_in_guest)(void); int (*is_user_mode)(void); unsigned long (*get_guest_ip)(void); }; #ifdef CONFIG_HAVE_HW_BREAKPOINT #include <asm/hw_breakpoint.h> #endif #include <linux/list.h> #include <linux/mutex.h> #include <linux/rculist.h> #include <linux/rcupdate.h> #include <linux/spinlock.h> #include <linux/hrtimer.h> #include <linux/fs.h> #include <linux/pid_namespace.h> #include <linux/workqueue.h> #include <linux/ftrace.h> #include <linux/cpu.h> #include <linux/irq_work.h> #include <linux/static_key.h> #include <linux/jump_label_ratelimit.h> #include <linux/atomic.h> #include <linux/sysfs.h> #include <linux/perf_regs.h> #include <linux/workqueue.h> #include <linux/cgroup.h> #include <asm/local.h> struct perf_callchain_entry { __u64 nr; __u64 ip[0]; /* /proc/sys/kernel/perf_event_max_stack */ }; struct perf_callchain_entry_ctx { struct perf_callchain_entry *entry; u32 max_stack; u32 nr; short contexts; bool contexts_maxed; }; typedef unsigned long (*perf_copy_f)(void *dst, const void *src, unsigned long off, unsigned long len); struct perf_raw_frag { union { struct perf_raw_frag *next; unsigned long pad; }; perf_copy_f copy; void *data; u32 size; } __packed; struct perf_raw_record { struct perf_raw_frag frag; u32 size; }; /* * branch stack layout: * nr: number of taken branches stored in entries[] * * Note that nr can vary from sample to sample * branches (to, from) are stored from most recent * to least recent, i.e., entries[0] contains the most * recent branch. */ struct perf_branch_stack { __u64 nr; struct perf_branch_entry entries[0]; }; struct task_struct; /* * extra PMU register associated with an event */ struct hw_perf_event_extra { u64 config; /* register value */ unsigned int reg; /* register address or index */ int alloc; /* extra register already allocated */ int idx; /* index in shared_regs->regs[] */ }; /** * struct hw_perf_event - performance event hardware details: */ struct hw_perf_event { #ifdef CONFIG_PERF_EVENTS union { struct { /* hardware */ u64 config; u64 last_tag; unsigned long config_base; unsigned long event_base; int event_base_rdpmc; int idx; int last_cpu; int flags; struct hw_perf_event_extra extra_reg; struct hw_perf_event_extra branch_reg; }; struct { /* software */ struct hrtimer hrtimer; }; struct { /* tracepoint */ /* for tp_event->class */ struct list_head tp_list; }; struct { /* amd_power */ u64 pwr_acc; u64 ptsc; }; #ifdef CONFIG_HAVE_HW_BREAKPOINT struct { /* breakpoint */ /* * Crufty hack to avoid the chicken and egg * problem hw_breakpoint has with context * creation and event initalization. */ struct arch_hw_breakpoint info; struct list_head bp_list; }; #endif struct { /* amd_iommu */ u8 iommu_bank; u8 iommu_cntr; u16 padding; u64 conf; u64 conf1; }; }; /* * If the event is a per task event, this will point to the task in * question. See the comment in perf_event_alloc(). */ struct task_struct *target; /* * PMU would store hardware filter configuration * here. */ void *addr_filters; /* Last sync'ed generation of filters */ unsigned long addr_filters_gen; /* * hw_perf_event::state flags; used to track the PERF_EF_* state. */ #define PERF_HES_STOPPED 0x01 /* the counter is stopped */ #define PERF_HES_UPTODATE 0x02 /* event->count up-to-date */ #define PERF_HES_ARCH 0x04 int state; /* * The last observed hardware counter value, updated with a * local64_cmpxchg() such that pmu::read() can be called nested. */ local64_t prev_count; /* * The period to start the next sample with. */ u64 sample_period; /* * The period we started this sample with. */ u64 last_period; /* * However much is left of the current period; note that this is * a full 64bit value and allows for generation of periods longer * than hardware might allow. */ local64_t period_left; /* * State for throttling the event, see __perf_event_overflow() and * perf_adjust_freq_unthr_context(). */ u64 interrupts_seq; u64 interrupts; /* * State for freq target events, see __perf_event_overflow() and * perf_adjust_freq_unthr_context(). */ u64 freq_time_stamp; u64 freq_count_stamp; #endif }; struct perf_event; /* * Common implementation detail of pmu::{start,commit,cancel}_txn */ #define PERF_PMU_TXN_ADD 0x1 /* txn to add/schedule event on PMU */ #define PERF_PMU_TXN_READ 0x2 /* txn to read event group from PMU */ /** * pmu::capabilities flags */ #define PERF_PMU_CAP_NO_INTERRUPT 0x01 #define PERF_PMU_CAP_NO_NMI 0x02 #define PERF_PMU_CAP_AUX_NO_SG 0x04 #define PERF_PMU_CAP_AUX_SW_DOUBLEBUF 0x08 #define PERF_PMU_CAP_EXCLUSIVE 0x10 #define PERF_PMU_CAP_ITRACE 0x20 #define PERF_PMU_CAP_HETEROGENEOUS_CPUS 0x40 /** * struct pmu - generic performance monitoring unit */ struct pmu { struct list_head entry; struct module *module; struct device *dev; const struct attribute_group **attr_groups; const char *name; int type; /* * various common per-pmu feature flags */ int capabilities; int * __percpu pmu_disable_count; struct perf_cpu_context * __percpu pmu_cpu_context; atomic_t exclusive_cnt; /* < 0: cpu; > 0: tsk */ int task_ctx_nr; int hrtimer_interval_ms; /* number of address filters this PMU can do */ unsigned int nr_addr_filters; /* * Fully disable/enable this PMU, can be used to protect from the PMI * as well as for lazy/batch writing of the MSRs. */ void (*pmu_enable) (struct pmu *pmu); /* optional */ void (*pmu_disable) (struct pmu *pmu); /* optional */ /* * Try and initialize the event for this PMU. * * Returns: * -ENOENT -- @event is not for this PMU * * -ENODEV -- @event is for this PMU but PMU not present * -EBUSY -- @event is for this PMU but PMU temporarily unavailable * -EINVAL -- @event is for this PMU but @event is not valid * -EOPNOTSUPP -- @event is for this PMU, @event is valid, but not supported * -EACCESS -- @event is for this PMU, @event is valid, but no privilidges * * 0 -- @event is for this PMU and valid * * Other error return values are allowed. */ int (*event_init) (struct perf_event *event); /* * Notification that the event was mapped or unmapped. Called * in the context of the mapping task. */ void (*event_mapped) (struct perf_event *event, struct mm_struct *mm); /* optional */ void (*event_unmapped) (struct perf_event *event, struct mm_struct *mm); /* optional */ /* * Flags for ->add()/->del()/ ->start()/->stop(). There are * matching hw_perf_event::state flags. */ #define PERF_EF_START 0x01 /* start the counter when adding */ #define PERF_EF_RELOAD 0x02 /* reload the counter when starting */ #define PERF_EF_UPDATE 0x04 /* update the counter when stopping */ /* * Adds/Removes a counter to/from the PMU, can be done inside a * transaction, see the ->*_txn() methods. * * The add/del callbacks will reserve all hardware resources required * to service the event, this includes any counter constraint * scheduling etc. * * Called with IRQs disabled and the PMU disabled on the CPU the event * is on. * * ->add() called without PERF_EF_START should result in the same state * as ->add() followed by ->stop(). * * ->del() must always PERF_EF_UPDATE stop an event. If it calls * ->stop() that must deal with already being stopped without * PERF_EF_UPDATE. */ int (*add) (struct perf_event *event, int flags); void (*del) (struct perf_event *event, int flags); /* * Starts/Stops a counter present on the PMU. * * The PMI handler should stop the counter when perf_event_overflow() * returns !0. ->start() will be used to continue. * * Also used to change the sample period. * * Called with IRQs disabled and the PMU disabled on the CPU the event * is on -- will be called from NMI context with the PMU generates * NMIs. * * ->stop() with PERF_EF_UPDATE will read the counter and update * period/count values like ->read() would. * * ->start() with PERF_EF_RELOAD will reprogram the the counter * value, must be preceded by a ->stop() with PERF_EF_UPDATE. */ void (*start) (struct perf_event *event, int flags); void (*stop) (struct perf_event *event, int flags); /* * Updates the counter value of the event. * * For sampling capable PMUs this will also update the software period * hw_perf_event::period_left field. */ void (*read) (struct perf_event *event); /* * Group events scheduling is treated as a transaction, add * group events as a whole and perform one schedulability test. * If the test fails, roll back the whole group * * Start the transaction, after this ->add() doesn't need to * do schedulability tests. * * Optional. */ void (*start_txn) (struct pmu *pmu, unsigned int txn_flags); /* * If ->start_txn() disabled the ->add() schedulability test * then ->commit_txn() is required to perform one. On success * the transaction is closed. On error the transaction is kept * open until ->cancel_txn() is called. * * Optional. */ int (*commit_txn) (struct pmu *pmu); /* * Will cancel the transaction, assumes ->del() is called * for each successful ->add() during the transaction. * * Optional. */ void (*cancel_txn) (struct pmu *pmu); /* * Will return the value for perf_event_mmap_page::index for this event, * if no implementation is provided it will default to: event->hw.idx + 1. */ int (*event_idx) (struct perf_event *event); /*optional */ /* * context-switches callback */ void (*sched_task) (struct perf_event_context *ctx, bool sched_in); /* * PMU specific data size */ size_t task_ctx_size; /* * Set up pmu-private data structures for an AUX area */ void *(*setup_aux) (struct perf_event *event, void **pages, int nr_pages, bool overwrite); /* optional */ /* * Free pmu-private AUX data structures */ void (*free_aux) (void *aux); /* optional */ /* * Validate address range filters: make sure the HW supports the * requested configuration and number of filters; return 0 if the * supplied filters are valid, -errno otherwise. * * Runs in the context of the ioctl()ing process and is not serialized * with the rest of the PMU callbacks. */ int (*addr_filters_validate) (struct list_head *filters); /* optional */ /* * Synchronize address range filter configuration: * translate hw-agnostic filters into hardware configuration in * event::hw::addr_filters. * * Runs as a part of filter sync sequence that is done in ->start() * callback by calling perf_event_addr_filters_sync(). * * May (and should) traverse event::addr_filters::list, for which its * caller provides necessary serialization. */ void (*addr_filters_sync) (struct perf_event *event); /* optional */ /* * Filter events for PMU-specific reasons. */ int (*filter_match) (struct perf_event *event); /* optional */ /* * Check period value for PERF_EVENT_IOC_PERIOD ioctl. */ int (*check_period) (struct perf_event *event, u64 value); /* optional */ }; /** * struct perf_addr_filter - address range filter definition * @entry: event's filter list linkage * @inode: object file's inode for file-based filters * @offset: filter range offset * @size: filter range size * @range: 1: range, 0: address * @filter: 1: filter/start, 0: stop * * This is a hardware-agnostic filter configuration as specified by the user. */ struct perf_addr_filter { struct list_head entry; struct path path; unsigned long offset; unsigned long size; unsigned int range : 1, filter : 1; }; /** * struct perf_addr_filters_head - container for address range filters * @list: list of filters for this event * @lock: spinlock that serializes accesses to the @list and event's * (and its children's) filter generations. * @nr_file_filters: number of file-based filters * * A child event will use parent's @list (and therefore @lock), so they are * bundled together; see perf_event_addr_filters(). */ struct perf_addr_filters_head { struct list_head list; raw_spinlock_t lock; unsigned int nr_file_filters; }; /** * enum perf_event_state - the states of a event */ enum perf_event_state { PERF_EVENT_STATE_DEAD = -4, PERF_EVENT_STATE_EXIT = -3, PERF_EVENT_STATE_ERROR = -2, PERF_EVENT_STATE_OFF = -1, PERF_EVENT_STATE_INACTIVE = 0, PERF_EVENT_STATE_ACTIVE = 1, }; struct file; struct perf_sample_data; typedef void (*perf_overflow_handler_t)(struct perf_event *, struct perf_sample_data *, struct pt_regs *regs); /* * Event capabilities. For event_caps and groups caps. * * PERF_EV_CAP_SOFTWARE: Is a software event. * PERF_EV_CAP_READ_ACTIVE_PKG: A CPU event (or cgroup event) that can be read * from any CPU in the package where it is active. */ #define PERF_EV_CAP_SOFTWARE BIT(0) #define PERF_EV_CAP_READ_ACTIVE_PKG BIT(1) #define SWEVENT_HLIST_BITS 8 #define SWEVENT_HLIST_SIZE (1 << SWEVENT_HLIST_BITS) struct swevent_hlist { struct hlist_head heads[SWEVENT_HLIST_SIZE]; struct rcu_head rcu_head; }; #define PERF_ATTACH_CONTEXT 0x01 #define PERF_ATTACH_GROUP 0x02 #define PERF_ATTACH_TASK 0x04 #define PERF_ATTACH_TASK_DATA 0x08 #define PERF_ATTACH_ITRACE 0x10 struct perf_cgroup; struct ring_buffer; struct pmu_event_list { raw_spinlock_t lock; struct list_head list; }; /** * struct perf_event - performance event kernel representation: */ struct perf_event { #ifdef CONFIG_PERF_EVENTS /* * entry onto perf_event_context::event_list; * modifications require ctx->lock * RCU safe iterations. */ struct list_head event_entry; /* * XXX: group_entry and sibling_list should be mutually exclusive; * either you're a sibling on a group, or you're the group leader. * Rework the code to always use the same list element. * * Locked for modification by both ctx->mutex and ctx->lock; holding * either sufficies for read. */ struct list_head group_entry; struct list_head sibling_list; /* * We need storage to track the entries in perf_pmu_migrate_context; we * cannot use the event_entry because of RCU and we want to keep the * group in tact which avoids us using the other two entries. */ struct list_head migrate_entry; struct hlist_node hlist_entry; struct list_head active_entry; int nr_siblings; /* Not serialized. Only written during event initialization. */ int event_caps; /* The cumulative AND of all event_caps for events in this group. */ int group_caps; struct perf_event *group_leader; struct pmu *pmu; void *pmu_private; enum perf_event_state state; unsigned int attach_state; local64_t count; atomic64_t child_count; /* * These are the total time in nanoseconds that the event * has been enabled (i.e. eligible to run, and the task has * been scheduled in, if this is a per-task event) * and running (scheduled onto the CPU), respectively. */ u64 total_time_enabled; u64 total_time_running; u64 tstamp; /* * timestamp shadows the actual context timing but it can * be safely used in NMI interrupt context. It reflects the * context time as it was when the event was last scheduled in. * * ctx_time already accounts for ctx->timestamp. Therefore to * compute ctx_time for a sample, simply add perf_clock(). */ u64 shadow_ctx_time; struct perf_event_attr attr; u16 header_size; u16 id_header_size; u16 read_size; struct hw_perf_event hw; struct perf_event_context *ctx; atomic_long_t refcount; /* * These accumulate total time (in nanoseconds) that children * events have been enabled and running, respectively. */ atomic64_t child_total_time_enabled; atomic64_t child_total_time_running; /* * Protect attach/detach and child_list: */ struct mutex child_mutex; struct list_head child_list; struct perf_event *parent; int oncpu; int cpu; struct list_head owner_entry; struct task_struct *owner; /* mmap bits */ struct mutex mmap_mutex; atomic_t mmap_count; struct ring_buffer *rb; struct list_head rb_entry; unsigned long rcu_batches; int rcu_pending; /* poll related */ wait_queue_head_t waitq; struct fasync_struct *fasync; /* delayed work for NMIs and such */ int pending_wakeup; int pending_kill; int pending_disable; struct irq_work pending; atomic_t event_limit; /* address range filters */ struct perf_addr_filters_head addr_filters; /* vma address array for file-based filders */ unsigned long *addr_filters_offs; unsigned long addr_filters_gen; void (*destroy)(struct perf_event *); struct rcu_head rcu_head; struct pid_namespace *ns; u64 id; u64 (*clock)(void); perf_overflow_handler_t overflow_handler; void *overflow_handler_context; #ifdef CONFIG_BPF_SYSCALL perf_overflow_handler_t orig_overflow_handler; struct bpf_prog *prog; #endif #ifdef CONFIG_EVENT_TRACING struct trace_event_call *tp_event; struct event_filter *filter; #ifdef CONFIG_FUNCTION_TRACER struct ftrace_ops ftrace_ops; #endif #endif #ifdef CONFIG_CGROUP_PERF struct perf_cgroup *cgrp; /* cgroup event is attach to */ #endif struct list_head sb_list; #endif /* CONFIG_PERF_EVENTS */ }; /** * struct perf_event_context - event context structure * * Used as a container for task events and CPU events as well: */ struct perf_event_context { struct pmu *pmu; /* * Protect the states of the events in the list, * nr_active, and the list: */ raw_spinlock_t lock; /* * Protect the list of events. Locking either mutex or lock * is sufficient to ensure the list doesn't change; to change * the list you need to lock both the mutex and the spinlock. */ struct mutex mutex; struct list_head active_ctx_list; struct list_head pinned_groups; struct list_head flexible_groups; struct list_head event_list; int nr_events; int nr_active; int is_active; int nr_stat; int nr_freq; int rotate_disable; atomic_t refcount; struct task_struct *task; /* * Context clock, runs when context enabled. */ u64 time; u64 timestamp; /* * These fields let us detect when two contexts have both * been cloned (inherited) from a common ancestor. */ struct perf_event_context *parent_ctx; u64 parent_gen; u64 generation; int pin_count; #ifdef CONFIG_CGROUP_PERF int nr_cgroups; /* cgroup evts */ #endif void *task_ctx_data; /* pmu specific data */ struct rcu_head rcu_head; }; /* * Number of contexts where an event can trigger: * task, softirq, hardirq, nmi. */ #define PERF_NR_CONTEXTS 4 /** * struct perf_event_cpu_context - per cpu event context structure */ struct perf_cpu_context { struct perf_event_context ctx; struct perf_event_context *task_ctx; int active_oncpu; int exclusive; raw_spinlock_t hrtimer_lock; struct hrtimer hrtimer; ktime_t hrtimer_interval; unsigned int hrtimer_active; #ifdef CONFIG_CGROUP_PERF struct perf_cgroup *cgrp; struct list_head cgrp_cpuctx_entry; #endif struct list_head sched_cb_entry; int sched_cb_usage; int online; }; struct perf_output_handle { struct perf_event *event; struct ring_buffer *rb; unsigned long wakeup; unsigned long size; u64 aux_flags; union { void *addr; unsigned long head; }; int page; }; struct bpf_perf_event_data_kern { bpf_user_pt_regs_t *regs; struct perf_sample_data *data; struct perf_event *event; }; #ifdef CONFIG_CGROUP_PERF /* * perf_cgroup_info keeps track of time_enabled for a cgroup. * This is a per-cpu dynamically allocated data structure. */ struct perf_cgroup_info { u64 time; u64 timestamp; }; struct perf_cgroup { struct cgroup_subsys_state css; struct perf_cgroup_info __percpu *info; }; /* * Must ensure cgroup is pinned (css_get) before calling * this function. In other words, we cannot call this function * if there is no cgroup event for the current CPU context. */ static inline struct perf_cgroup * perf_cgroup_from_task(struct task_struct *task, struct perf_event_context *ctx) { return container_of(task_css_check(task, perf_event_cgrp_id, ctx ? lockdep_is_held(&ctx->lock) : true), struct perf_cgroup, css); } #endif /* CONFIG_CGROUP_PERF */ #ifdef CONFIG_PERF_EVENTS extern void *perf_aux_output_begin(struct perf_output_handle *handle, struct perf_event *event); extern void perf_aux_output_end(struct perf_output_handle *handle, unsigned long size); extern int perf_aux_output_skip(struct perf_output_handle *handle, unsigned long size); extern void *perf_get_aux(struct perf_output_handle *handle); extern void perf_aux_output_flag(struct perf_output_handle *handle, u64 flags); extern void perf_event_itrace_started(struct perf_event *event); extern int perf_pmu_register(struct pmu *pmu, const char *name, int type); extern void perf_pmu_unregister(struct pmu *pmu); extern int perf_num_counters(void); extern const char *perf_pmu_name(void); extern void __perf_event_task_sched_in(struct task_struct *prev, struct task_struct *task); extern void __perf_event_task_sched_out(struct task_struct *prev, struct task_struct *next); extern int perf_event_init_task(struct task_struct *child); extern void perf_event_exit_task(struct task_struct *child); extern void perf_event_free_task(struct task_struct *task); extern void perf_event_delayed_put(struct task_struct *task); extern struct file *perf_event_get(unsigned int fd); extern const struct perf_event_attr *perf_event_attrs(struct perf_event *event); extern void perf_event_print_debug(void); extern void perf_pmu_disable(struct pmu *pmu); extern void perf_pmu_enable(struct pmu *pmu); extern void perf_sched_cb_dec(struct pmu *pmu); extern void perf_sched_cb_inc(struct pmu *pmu); extern int perf_event_task_disable(void); extern int perf_event_task_enable(void); extern int perf_event_refresh(struct perf_event *event, int refresh); extern void perf_event_update_userpage(struct perf_event *event); extern int perf_event_release_kernel(struct perf_event *event); extern struct perf_event * perf_event_create_kernel_counter(struct perf_event_attr *attr, int cpu, struct task_struct *task, perf_overflow_handler_t callback, void *context); extern void perf_pmu_migrate_context(struct pmu *pmu, int src_cpu, int dst_cpu); int perf_event_read_local(struct perf_event *event, u64 *value, u64 *enabled, u64 *running); extern u64 perf_event_read_value(struct perf_event *event, u64 *enabled, u64 *running); struct perf_sample_data { /* * Fields set by perf_sample_data_init(), group so as to * minimize the cachelines touched. */ u64 sample_flags; u64 addr; struct perf_raw_record *raw; struct perf_branch_stack *br_stack; u64 period; u64 weight; u64 txn; union perf_mem_data_src data_src; /* * The other fields, optionally {set,used} by * perf_{prepare,output}_sample(). */ u64 type; u64 ip; struct { u32 pid; u32 tid; } tid_entry; u64 time; u64 id; u64 stream_id; struct { u32 cpu; u32 reserved; } cpu_entry; struct perf_callchain_entry *callchain; /* * regs_user may point to task_pt_regs or to regs_user_copy, depending * on arch details. */ struct perf_regs regs_user; struct pt_regs regs_user_copy; struct perf_regs regs_intr; u64 stack_user_size; u64 phys_addr; } ____cacheline_aligned; /* default value for data source */ #define PERF_MEM_NA (PERF_MEM_S(OP, NA) |\ PERF_MEM_S(LVL, NA) |\ PERF_MEM_S(SNOOP, NA) |\ PERF_MEM_S(LOCK, NA) |\ PERF_MEM_S(TLB, NA)) static inline void perf_sample_data_init(struct perf_sample_data *data, u64 addr, u64 period) { /* remaining struct members initialized in perf_prepare_sample() */ data->sample_flags = 0; data->addr = addr; data->raw = NULL; data->br_stack = NULL; data->period = period; data->weight = 0; data->data_src.val = PERF_MEM_NA; data->txn = 0; } extern void perf_output_sample(struct perf_output_handle *handle, struct perf_event_header *header, struct perf_sample_data *data, struct perf_event *event); extern void perf_prepare_sample(struct perf_event_header *header, struct perf_sample_data *data, struct perf_event *event, struct pt_regs *regs); extern int perf_event_overflow(struct perf_event *event, struct perf_sample_data *data, struct pt_regs *regs); extern void perf_event_output_forward(struct perf_event *event, struct perf_sample_data *data, struct pt_regs *regs); extern void perf_event_output_backward(struct perf_event *event, struct perf_sample_data *data, struct pt_regs *regs); extern void perf_event_output(struct perf_event *event, struct perf_sample_data *data, struct pt_regs *regs); static inline bool is_default_overflow_handler(struct perf_event *event) { if (likely(event->overflow_handler == perf_event_output_forward)) return true; if (unlikely(event->overflow_handler == perf_event_output_backward)) return true; return false; } extern void perf_event_header__init_id(struct perf_event_header *header, struct perf_sample_data *data, struct perf_event *event); extern void perf_event__output_id_sample(struct perf_event *event, struct perf_output_handle *handle, struct perf_sample_data *sample); extern void perf_log_lost_samples(struct perf_event *event, u64 lost); static inline bool is_sampling_event(struct perf_event *event) { return event->attr.sample_period != 0; } /* * Return 1 for a software event, 0 for a hardware event */ static inline int is_software_event(struct perf_event *event) { return event->event_caps & PERF_EV_CAP_SOFTWARE; } extern struct static_key perf_swevent_enabled[PERF_COUNT_SW_MAX]; extern void ___perf_sw_event(u32, u64, struct pt_regs *, u64); extern void __perf_sw_event(u32, u64, struct pt_regs *, u64); #ifndef perf_arch_fetch_caller_regs static inline void perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned long ip) { } #endif /* * Take a snapshot of the regs. Skip ip and frame pointer to * the nth caller. We only need a few of the regs: * - ip for PERF_SAMPLE_IP * - cs for user_mode() tests * - bp for callchains * - eflags, for future purposes, just in case */ static inline void perf_fetch_caller_regs(struct pt_regs *regs) { perf_arch_fetch_caller_regs(regs, CALLER_ADDR0); } static __always_inline void perf_sw_event(u32 event_id, u64 nr, struct pt_regs *regs, u64 addr) { if (static_key_false(&perf_swevent_enabled[event_id])) __perf_sw_event(event_id, nr, regs, addr); } DECLARE_PER_CPU(struct pt_regs, __perf_regs[4]); /* * 'Special' version for the scheduler, it hard assumes no recursion, * which is guaranteed by us not actually scheduling inside other swevents * because those disable preemption. */ static __always_inline void perf_sw_event_sched(u32 event_id, u64 nr, u64 addr) { if (static_key_false(&perf_swevent_enabled[event_id])) { struct pt_regs *regs = this_cpu_ptr(&__perf_regs[0]); perf_fetch_caller_regs(regs); ___perf_sw_event(event_id, nr, regs, addr); } } extern struct static_key_false perf_sched_events; static __always_inline bool perf_sw_migrate_enabled(void) { if (static_key_false(&perf_swevent_enabled[PERF_COUNT_SW_CPU_MIGRATIONS])) return true; return false; } static inline void perf_event_task_migrate(struct task_struct *task) { if (perf_sw_migrate_enabled()) task->sched_migrated = 1; } static inline void perf_event_task_sched_in(struct task_struct *prev, struct task_struct *task) { if (static_branch_unlikely(&perf_sched_events)) __perf_event_task_sched_in(prev, task); if (perf_sw_migrate_enabled() && task->sched_migrated) { struct pt_regs *regs = this_cpu_ptr(&__perf_regs[0]); perf_fetch_caller_regs(regs); ___perf_sw_event(PERF_COUNT_SW_CPU_MIGRATIONS, 1, regs, 0); task->sched_migrated = 0; } } static inline void perf_event_task_sched_out(struct task_struct *prev, struct task_struct *next) { perf_sw_event_sched(PERF_COUNT_SW_CONTEXT_SWITCHES, 1, 0); if (static_branch_unlikely(&perf_sched_events)) __perf_event_task_sched_out(prev, next); } extern void perf_event_mmap(struct vm_area_struct *vma); extern struct perf_guest_info_callbacks *perf_guest_cbs; extern int perf_register_guest_info_callbacks(struct perf_guest_info_callbacks *callbacks); extern int perf_unregister_guest_info_callbacks(struct perf_guest_info_callbacks *callbacks); extern void perf_event_exec(void); extern void perf_event_comm(struct task_struct *tsk, bool exec); extern void perf_event_namespaces(struct task_struct *tsk); extern void perf_event_fork(struct task_struct *tsk); /* Callchains */ DECLARE_PER_CPU(struct perf_callchain_entry, perf_callchain_entry); extern void perf_callchain_user(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs); extern void perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs); extern struct perf_callchain_entry * get_perf_callchain(struct pt_regs *regs, u32 init_nr, bool kernel, bool user, u32 max_stack, bool crosstask, bool add_mark); extern int get_callchain_buffers(int max_stack); extern void put_callchain_buffers(void); extern int sysctl_perf_event_max_stack; extern int sysctl_perf_event_max_contexts_per_stack; static inline int perf_callchain_store_context(struct perf_callchain_entry_ctx *ctx, u64 ip) { if (ctx->contexts < sysctl_perf_event_max_contexts_per_stack) { struct perf_callchain_entry *entry = ctx->entry; entry->ip[entry->nr++] = ip; ++ctx->contexts; return 0; } else { ctx->contexts_maxed = true; return -1; /* no more room, stop walking the stack */ } } static inline int perf_callchain_store(struct perf_callchain_entry_ctx *ctx, u64 ip) { if (ctx->nr < ctx->max_stack && !ctx->contexts_maxed) { struct perf_callchain_entry *entry = ctx->entry; entry->ip[entry->nr++] = ip; ++ctx->nr; return 0; } else { return -1; /* no more room, stop walking the stack */ } } extern int sysctl_perf_event_paranoid; extern int sysctl_perf_event_mlock; extern int sysctl_perf_event_sample_rate; extern int sysctl_perf_cpu_time_max_percent; extern void perf_sample_event_took(u64 sample_len_ns); extern int perf_proc_update_handler(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos); extern int perf_cpu_time_max_percent_handler(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos); int perf_event_max_stack_handler(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos); static inline bool perf_paranoid_any(void) { return sysctl_perf_event_paranoid > 2; } static inline bool perf_paranoid_tracepoint_raw(void) { return sysctl_perf_event_paranoid > -1; } static inline bool perf_paranoid_cpu(void) { return sysctl_perf_event_paranoid > 0; } static inline bool perf_paranoid_kernel(void) { return sysctl_perf_event_paranoid > 1; } extern void perf_event_init(void); extern void perf_tp_event(u16 event_type, u64 count, void *record, int entry_size, struct pt_regs *regs, struct hlist_head *head, int rctx, struct task_struct *task); extern void perf_bp_event(struct perf_event *event, void *data); #ifndef perf_misc_flags # define perf_misc_flags(regs) \ (user_mode(regs) ? PERF_RECORD_MISC_USER : PERF_RECORD_MISC_KERNEL) # define perf_instruction_pointer(regs) instruction_pointer(regs) #endif #ifndef perf_arch_bpf_user_pt_regs # define perf_arch_bpf_user_pt_regs(regs) regs #endif static inline bool has_branch_stack(struct perf_event *event) { return event->attr.sample_type & PERF_SAMPLE_BRANCH_STACK; } static inline bool needs_branch_stack(struct perf_event *event) { return event->attr.branch_sample_type != 0; } static inline bool has_aux(struct perf_event *event) { return event->pmu->setup_aux; } static inline bool is_write_backward(struct perf_event *event) { return !!event->attr.write_backward; } static inline bool has_addr_filter(struct perf_event *event) { return event->pmu->nr_addr_filters; } /* * An inherited event uses parent's filters */ static inline struct perf_addr_filters_head * perf_event_addr_filters(struct perf_event *event) { struct perf_addr_filters_head *ifh = &event->addr_filters; if (event->parent) ifh = &event->parent->addr_filters; return ifh; } extern void perf_event_addr_filters_sync(struct perf_event *event); extern int perf_output_begin(struct perf_output_handle *handle, struct perf_event *event, unsigned int size); extern int perf_output_begin_forward(struct perf_output_handle *handle, struct perf_event *event, unsigned int size); extern int perf_output_begin_backward(struct perf_output_handle *handle, struct perf_event *event, unsigned int size); extern void perf_output_end(struct perf_output_handle *handle); extern unsigned int perf_output_copy(struct perf_output_handle *handle, const void *buf, unsigned int len); extern unsigned int perf_output_skip(struct perf_output_handle *handle, unsigned int len); extern int perf_swevent_get_recursion_context(void); extern void perf_swevent_put_recursion_context(int rctx); extern u64 perf_swevent_set_period(struct perf_event *event); extern void perf_event_enable(struct perf_event *event); extern void perf_event_disable(struct perf_event *event); extern void perf_event_disable_local(struct perf_event *event); extern void perf_event_disable_inatomic(struct perf_event *event); extern void perf_event_task_tick(void); extern int perf_event_account_interrupt(struct perf_event *event); #else /* !CONFIG_PERF_EVENTS: */ static inline void * perf_aux_output_begin(struct perf_output_handle *handle, struct perf_event *event) { return NULL; } static inline void perf_aux_output_end(struct perf_output_handle *handle, unsigned long size) { } static inline int perf_aux_output_skip(struct perf_output_handle *handle, unsigned long size) { return -EINVAL; } static inline void * perf_get_aux(struct perf_output_handle *handle) { return NULL; } static inline void perf_event_task_migrate(struct task_struct *task) { } static inline void perf_event_task_sched_in(struct task_struct *prev, struct task_struct *task) { } static inline void perf_event_task_sched_out(struct task_struct *prev, struct task_struct *next) { } static inline int perf_event_init_task(struct task_struct *child) { return 0; } static inline void perf_event_exit_task(struct task_struct *child) { } static inline void perf_event_free_task(struct task_struct *task) { } static inline void perf_event_delayed_put(struct task_struct *task) { } static inline struct file *perf_event_get(unsigned int fd) { return ERR_PTR(-EINVAL); } static inline const struct perf_event_attr *perf_event_attrs(struct perf_event *event) { return ERR_PTR(-EINVAL); } static inline int perf_event_read_local(struct perf_event *event, u64 *value, u64 *enabled, u64 *running) { return -EINVAL; } static inline void perf_event_print_debug(void) { } static inline int perf_event_task_disable(void) { return -EINVAL; } static inline int perf_event_task_enable(void) { return -EINVAL; } static inline int perf_event_refresh(struct perf_event *event, int refresh) { return -EINVAL; } static inline void perf_sw_event(u32 event_id, u64 nr, struct pt_regs *regs, u64 addr) { } static inline void perf_sw_event_sched(u32 event_id, u64 nr, u64 addr) { } static inline void perf_bp_event(struct perf_event *event, void *data) { } static inline int perf_register_guest_info_callbacks (struct perf_guest_info_callbacks *callbacks) { return 0; } static inline int perf_unregister_guest_info_callbacks (struct perf_guest_info_callbacks *callbacks) { return 0; } static inline void perf_event_mmap(struct vm_area_struct *vma) { } static inline void perf_event_exec(void) { } static inline void perf_event_comm(struct task_struct *tsk, bool exec) { } static inline void perf_event_namespaces(struct task_struct *tsk) { } static inline void perf_event_fork(struct task_struct *tsk) { } static inline void perf_event_init(void) { } static inline int perf_swevent_get_recursion_context(void) { return -1; } static inline void perf_swevent_put_recursion_context(int rctx) { } static inline u64 perf_swevent_set_period(struct perf_event *event) { return 0; } static inline void perf_event_enable(struct perf_event *event) { } static inline void perf_event_disable(struct perf_event *event) { } static inline int __perf_event_disable(void *info) { return -1; } static inline void perf_event_task_tick(void) { } static inline int perf_event_release_kernel(struct perf_event *event) { return 0; } #endif #if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_CPU_SUP_INTEL) extern void perf_restore_debug_store(void); #else static inline void perf_restore_debug_store(void) { } #endif static __always_inline bool perf_raw_frag_last(const struct perf_raw_frag *frag) { return frag->pad < sizeof(u64); } #define perf_output_put(handle, x) perf_output_copy((handle), &(x), sizeof(x)) struct perf_pmu_events_attr { struct device_attribute attr; u64 id; const char *event_str; }; struct perf_pmu_events_ht_attr { struct device_attribute attr; u64 id; const char *event_str_ht; const char *event_str_noht; }; ssize_t perf_event_sysfs_show(struct device *dev, struct device_attribute *attr, char *page); #define PMU_EVENT_ATTR(_name, _var, _id, _show) \ static struct perf_pmu_events_attr _var = { \ .attr = __ATTR(_name, 0444, _show, NULL), \ .id = _id, \ }; #define PMU_EVENT_ATTR_STRING(_name, _var, _str) \ static struct perf_pmu_events_attr _var = { \ .attr = __ATTR(_name, 0444, perf_event_sysfs_show, NULL), \ .id = 0, \ .event_str = _str, \ }; #define PMU_FORMAT_ATTR(_name, _format) \ static ssize_t \ _name##_show(struct device *dev, \ struct device_attribute *attr, \ char *page) \ { \ BUILD_BUG_ON(sizeof(_format) >= PAGE_SIZE); \ return sprintf(page, _format "\n"); \ } \ \ static struct device_attribute format_attr_##_name = __ATTR_RO(_name) /* Performance counter hotplug functions */ #ifdef CONFIG_PERF_EVENTS int perf_event_init_cpu(unsigned int cpu); int perf_event_exit_cpu(unsigned int cpu); #else #define perf_event_init_cpu NULL #define perf_event_exit_cpu NULL #endif #endif /* _LINUX_PERF_EVENT_H */
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