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Thomas Gleixner 0793a61d4d performance counters: core code 
Implement the core kernel bits of Performance Counters subsystem.

The Linux Performance Counter subsystem provides an abstraction of
performance counter hardware capabilities. It provides per task and per
CPU counters, and it provides event capabilities on top of those.

Performance counters are accessed via special file descriptors.
There's one file descriptor per virtual counter used.

The special file descriptor is opened via the perf_counter_open()
system call:

 int
 perf_counter_open(u32 hw_event_type,
                   u32 hw_event_period,
                   u32 record_type,
                   pid_t pid,
                   int cpu);

The syscall returns the new fd. The fd can be used via the normal
VFS system calls: read() can be used to read the counter, fcntl()
can be used to set the blocking mode, etc.

Multiple counters can be kept open at a time, and the counters
can be poll()ed.

See more details in Documentation/perf-counters.txt.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-12-08 15:47:03 +01:00
..
agp uninorth-agp section mess 2008-11-30 10:03:37 -08:00
hw_random Tidy up addresses in random drivers 2008-10-27 08:39:52 -07:00
ip2 device create: char: convert device_create_drvdata to device_create 2008-10-16 09:24:42 -07:00
ipmi Fix platform drivers that crash on suspend/resume 2008-11-12 17:17:16 -08:00
mwave mwave: ioctl BKL pushdown 2008-07-25 10:53:43 -07:00
pcmcia pcmcia: IRQ_TYPE_EXCLUSIVE is long obsoleted 2008-10-17 23:07:10 +02:00
rio rio: push down the BKL into the firmware ioctl handler 2008-07-25 10:53:43 -07:00
tpm tpm: don't export static functions 2008-10-20 08:50:24 -07:00
xilinx_hwicap powerpc/virtex: fix various format/casting printk mismatches 2008-11-14 09:59:48 -07:00
.gitignore
amiserial.c m68k: Disable Amiga serial console support if modular 2008-10-26 12:11:21 -07:00
apm-emulation.c APM emulation: Notify about all suspend events, not just APM invoked ones (v2) 2008-07-16 23:27:02 +02:00
applicom.c applicom.c: fix apparently-broken code in do_ac_read() 2008-10-16 11:21:47 -07:00
applicom.h
bfin-otp.c
briq_panel.c briq_panel: BKL pushdown 2008-06-20 14:05:55 -06:00
bsr.c device create: char: convert device_create_drvdata to device_create 2008-10-16 09:24:42 -07:00
cd1865.h
ChangeLog
consolemap.c
cp437.uni
cs5535_gpio.c Add a bunch of cycle_kernel_lock() calls 2008-06-20 14:05:53 -06:00
cyclades.c Char: cyclades. remove bogus iomap 2008-10-13 09:51:38 -07:00
defkeymap.c_shipped
defkeymap.map
digi1.h
digiFep1.h
digiPCI.h
ds1302.c rtc: use bcd2bin/bin2bcd 2008-10-20 08:52:41 -07:00
ds1620.c [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach 2008-08-07 09:55:48 +01:00
dsp56k.c device create: char: convert device_create_drvdata to device_create 2008-10-16 09:24:42 -07:00
dtlk.c Add a bunch of cycle_kernel_lock() calls 2008-06-20 14:05:53 -06:00
efirtc.c drivers/char/efirtc.c: removed duplicated #include 2008-08-04 16:59:56 -07:00
epca.c epca: Add infinite break support 2008-10-20 09:41:06 -07:00
epca.h epca: use tty_port 2008-07-20 17:12:36 -07:00
epcaconfig.h
esp.c tty: rework break handling 2008-07-22 13:03:28 -07:00
generic_nvram.c driver/char/generic_nvram: fix banner 2008-06-12 18:05:41 -07:00
generic_serial.c tty: Remove lots of NULL checks 2008-10-13 09:51:44 -07:00
genrtc.c genrtc: BKL pushdown 2008-06-20 14:05:57 -06:00
hangcheck-timer.c
hpet.c saner FASYNC handling on file close 2008-11-01 09:49:46 -07:00
hvc_beat.c
hvc_console.c hvc_console: Remove __devexit annotation of hvc_remove() 2008-10-22 11:00:25 +11:00
hvc_console.h hvc_console: Remove __devexit annotation of hvc_remove() 2008-10-22 11:00:25 +11:00
hvc_irq.c hvc_console: Add a hangup notifier for backends 2008-10-22 10:59:54 +11:00
hvc_iseries.c hvc_console: Add a hangup notifier for backends 2008-10-22 10:59:54 +11:00
hvc_rtas.c
hvc_vio.c hvc_console: Add a hangup notifier for backends 2008-10-22 10:59:54 +11:00
hvc_xen.c hvc_console: Add a hangup notifier for backends 2008-10-22 10:59:54 +11:00
hvcs.c powerpc: Move include files to arch/powerpc/include/asm 2008-08-04 12:02:00 +10:00
hvsi.c
i8k.c
isicom.c tty: trivial - fix up email addresses in tty related stuff 2008-11-11 09:30:10 -08:00
istallion.c istallion section warnings 2008-11-30 10:03:36 -08:00
Kconfig Create/use more directory structure in the Documentation/ tree. 2008-11-14 17:28:53 +00:00
keyboard.c Input: keyboard - fix potential out of bound access to key_map 2008-10-08 23:45:36 -04:00
lp.c device create: char: convert device_create_drvdata to device_create 2008-10-16 09:24:42 -07:00
Makefile CHAR: Delete old and now unused M48T35 RTC driver for SGI IP27. 2008-10-30 14:44:35 +00:00
mbcs.c mbcs: cdev lock_kernel() pushdown 2008-06-20 14:05:48 -06:00
mbcs.h
mem.c device create: char: convert device_create_drvdata to device_create 2008-10-16 09:24:42 -07:00
misc.c device create: char: convert device_create_drvdata to device_create 2008-10-16 09:24:42 -07:00
mmtimer.c mmtimer: Push BKL down into the ioctl handler 2008-07-17 11:34:49 -07:00
moxa.c char: moxa.c sparse annotation 2008-10-16 11:21:47 -07:00
moxa.h
mspec.c mspec: convert nopfn to fault 2008-07-24 10:47:14 -07:00
mxser.c tty: trivial - fix up email addresses in tty related stuff 2008-11-11 09:30:10 -08:00
mxser.h
n_hdlc.c tty: some ICANON magic is in the wrong places 2008-10-13 09:51:44 -07:00
n_r3964.c tty: Remove lots of NULL checks 2008-10-13 09:51:44 -07:00
n_tty.c tty: rename the remaining oddly named n_tty functions 2008-10-13 09:51:45 -07:00
nozomi.c nozomi: Fix close on error 2008-10-13 09:51:39 -07:00
nsc_gpio.c
nvram.c [PATCH] introduce fmode_t, do annotations 2008-10-21 07:47:06 -04:00
nwbutton.c
nwbutton.h
nwflash.c [ARM] fix nwflash.c: 6ee8928d94 2008-07-26 16:29:24 +01:00
pc8736x_gpio.c pc8736x_gpio: add support for PC87365 chips 2008-10-20 08:52:40 -07:00
ppdev.c device create: char: convert device_create_drvdata to device_create 2008-10-16 09:24:42 -07:00
ps3flash.c
pty.c pty: simplify unix98 allocation 2008-10-13 09:51:44 -07:00
random.c saner FASYNC handling on file close 2008-11-01 09:49:46 -07:00
raw.c [PATCH] kill the rest of struct file propagation in block ioctls 2008-10-21 07:49:14 -04:00
riscom8.c riscom8: Restore driver using new break functionality 2008-07-22 13:03:28 -07:00
riscom8.h tty: add more tty_port fields 2008-07-20 17:12:38 -07:00
riscom8_reg.h
rocket.c tty: rework break handling 2008-07-22 13:03:28 -07:00
rocket.h tty: add more tty_port fields 2008-07-20 17:12:38 -07:00
rocket_int.h tty: add more tty_port fields 2008-07-20 17:12:38 -07:00
rtc.c saner FASYNC handling on file close 2008-11-01 09:49:46 -07:00
scc.h
scx200_gpio.c Add a bunch of cycle_kernel_lock() calls 2008-06-20 14:05:53 -06:00
selection.c tty: Ldisc revamp 2008-07-20 17:12:34 -07:00
ser_a2232.c m68k: gs: use tty_port fixes 2008-07-26 20:29:03 -07:00
ser_a2232.h
ser_a2232fw.ax
ser_a2232fw.h
serial167.c Fix incorrect use of loose in tty/serial drivers 2008-12-05 13:40:52 -08:00
snsc.c device create: char: convert device_create_drvdata to device_create 2008-10-16 09:24:42 -07:00
snsc.h
snsc_event.c byteorder: don't directly include linux/byteorder/generic.h 2008-05-16 12:01:45 -07:00
sonypi.c Merge branch 'misc' into release 2008-11-11 21:14:11 -05:00
specialix.c Create/use more directory structure in the Documentation/ tree. 2008-11-14 17:28:53 +00:00
specialix_io8.h tty: add more tty_port fields 2008-07-20 17:12:38 -07:00
stallion.c device create: char: convert device_create_drvdata to device_create 2008-10-16 09:24:42 -07:00
sx.c Char: sx, remove bogus iomap 2008-10-20 08:52:36 -07:00
sx.h
sxboards.h
sxwindow.h
synclink.c Merge branch 'for-jeff' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6 into tmp 2008-08-07 04:05:46 -04:00
synclink_gt.c removed unused #include <version.h> 2008-08-16 17:21:58 -07:00
synclinkmp.c Merge branch 'for-jeff' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6 into tmp 2008-08-07 04:05:46 -04:00
sysrq.c performance counters: core code 2008-12-08 15:47:03 +01:00
tb0219.c Add a bunch of cycle_kernel_lock() calls 2008-06-20 14:05:53 -06:00
tlclk.c tlckl: BKL pushdown 2008-06-20 14:05:51 -06:00
toshiba.c
tty_audit.c audit: Handle embedded NUL in TTY input auditing 2008-10-13 09:51:39 -07:00
tty_buffer.c tty: split the buffering from tty_io 2008-10-13 09:51:40 -07:00
tty_io.c drivers/char/tty_io.c: Avoid panic when no console is configured. 2008-12-01 08:19:10 -08:00
tty_ioctl.c tty: some ICANON magic is in the wrong places 2008-10-13 09:51:44 -07:00
tty_ldisc.c try harder to load tty ldisc driver 2008-08-01 12:50:15 -07:00
tty_port.c tty: Fix tty_port kref screwup 2008-10-23 09:20:53 -07:00
vc_screen.c device create: char: convert device_create_drvdata to device_create 2008-10-16 09:24:42 -07:00
viotape.c device create: char: convert device_create_drvdata to device_create 2008-10-16 09:24:42 -07:00
virtio_console.c hvc_console: Add a hangup notifier for backends 2008-10-22 10:59:54 +11:00
vme_scc.c m68k: gs: use tty_port fixes 2008-07-26 20:29:03 -07:00
vr41xx_giu.c drivers/char: use nr_irqs 2008-10-16 16:52:05 +02:00
vt.c vt: incomplete initialization of vc_tab_stop 2008-11-06 15:41:17 -08:00
vt_ioctl.c tty: move tioclinux from a special case 2008-10-13 09:51:40 -07:00