ShuoX Liu 3a53396b03 cpuidle: add a sysfs entry to disable specific C state for debug purpose. ... Some C states of new CPU might be not good. One reason is BIOS might configure them incorrectly. To help developers root cause it quickly, the patch adds a new sysfs entry, so developers could disable specific C state manually. In addition, C state might have much impact on performance tuning, as it takes much time to enter/exit C states, which might delay interrupt processing. With the new debug option, developers could check if a deep C state could impact performance and how much impact it could cause. Also add this option in Documentation/cpuidle/sysfs.txt. [akpm@linux-foundation.org: check kstrtol return value] Signed-off-by: ShuoX Liu <shuox.liu@intel.com> Reviewed-by: Yanmin Zhang <yanmin_zhang@intel.com> Reviewed-and-Tested-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>		2012-03-30 01:52:58 -04:00
..
ABI	Autogenerated GPG tag for Rusty D1ADB8F1: 15EE 8D6C AB0E 7F0C F999 BFCB D920 0E6C D1AD B8F1	2012-01-14 12:32:16 -08:00
accounting
acpi	acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi spec	2012-01-18 01:14:17 -05:00
aoe
arm	ARM: move iotable mappings within the vmalloc region	2011-11-26 19:21:26 -05:00
auxdisplay
blackfin
block
blockdev	cciss: auto engage SCSI mid layer at driver load time	2011-11-16 09:21:49 +01:00
cdrom
cgroups	memcg: fix pgpgin/pgpgout documentation	2012-01-12 20:13:06 -08:00
connector
console
cpu-freq
cpuidle	cpuidle: add a sysfs entry to disable specific C state for debug purpose.	2012-03-30 01:52:58 -04:00
cris
crypto
development-process	Documentation: Update stable address	2011-12-12 14:14:31 -08:00
device-mapper
devicetree	doc: dt: Fix broken reference in gpio-leds documentation	2012-02-27 10:28:04 -06:00
DocBook	docbook: fix fatal errors in device-drivers docbook and add DMA Management section	2012-02-01 17:28:26 -08:00
driver-model	Documentation: devres: add allocation functions to list of supported calls	2012-01-24 10:47:42 -08:00
dvb	[media] dvb_get_firmware: updates for it913x	2011-12-11 09:00:48 -02:00
early-userspace
fault-injection
fb	fbdev: Add FOURCC-based format configuration API	2011-12-19 20:07:13 +00:00
filesystems	Merge branch 'for-3.3' of git://linux-nfs.org/~bfields/linux	2012-01-14 12:26:41 -08:00
firmware_class
frv
hid
hwmon	hwmon: (zl6100) Enable interval between chip accesses for all chips	2012-03-14 09:17:03 -07:00
i2c	i2c: Fix device name for 10-bit slave address	2011-11-23 11:33:07 +01:00
i2o
ia64
ide
infiniband
input	Input: ALPS - fix touchpad detection when buttons are pressed	2012-02-24 00:46:45 -08:00
ioctl
isdn
ja_JP
kbuild	kbuild: Add support for an "archheaders" target	2011-11-17 13:35:20 -08:00
kdump	[S390] Add s390x description to Documentation/kdump/kdump.txt	2011-12-27 11:27:13 +01:00
ko_KR
laptops
leds
m68k
make
mips
misc-devices
mmc	mmc: core: Fixup delayed work clock gating patch	2012-01-11 23:58:43 -05:00
mn10300
mtd
namespaces
netlabel
networking	bonding: document undocumented active_slave sysfs entry.	2011-12-26 20:09:35 -05:00
nfc
parisc
PCI
pcmcia
power	PM / Documentation: Fix minor issue in freezing_of_tasks.txt	2012-01-19 23:22:49 +01:00
powerpc
pps
prctl
pti
ptp
rapidio
RCU	docs: Additional LWN links to RCU API	2011-12-11 10:32:23 -08:00
s390	[S390] Remove Kerntypes leftovers	2011-12-27 11:27:12 +01:00
scheduler
scsi	[SCSI] qla4xxx: Update license	2012-01-16 12:34:12 +04:00
security	Merge branch 'master'; commit 'v3.2-rc2' into next	2011-11-16 12:39:48 +11:00
serial	serial/documentation: fix documented name of DCD cpp symbol	2012-01-04 16:26:32 -08:00
sh
sound	Merge branch 'topic/hda' into for-linus	2012-01-12 09:59:18 +01:00
sparc
spi
sysctl	Documentation: add missing tainted bits to Documentation/sysctl/kernel.txt	2012-02-06 16:29:19 -08:00
target	target: tcm_mod_builder: small fixups	2011-12-14 11:38:25 +00:00
telephony
thermal	thermal: Rename generate_netlink_event	2012-01-23 03:15:25 -05:00
timers
trace	mm-tracepoint: fix documentation and examples	2012-01-10 16:30:41 -08:00
usb	USB: update documentation for usbmon	2012-01-04 16:04:30 -08:00
vDSO
video4linux	[media] V4L2 Spec: fix extended control documentation	2012-01-16 09:37:53 -02:00
virtual	lguest: remove reference from Documentation/virtual/00-INDEX	2012-01-28 08:10:23 +10:30
vm	slub: document setting min order with debug_guardpage_minorder > 0	2012-01-12 20:13:04 -08:00
w1
watchdog	watchdog: documentation: describe nowayout in coversion-guide	2012-01-06 15:26:14 +01:00
wimax
x86
zh_CN
.gitignore
00-INDEX
applying-patches.txt
atomic_ops.txt	doc: Add load/store guarantees to Documentation/atomic-ops.txt	2011-12-11 10:31:58 -08:00
bad_memory.txt
basic_profiling.txt
binfmt_misc.txt
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
BUG-HUNTING
bus-virt-phys-mapping.txt
cachetlb.txt
Changes
circular-buffers.txt
coccinelle.txt	coccinelle.txt: update documentation to include M= option	2012-01-14 22:25:56 +01:00
CodingStyle
cpu-hotplug.txt
cpu-load.txt
cputopology.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
devices.txt	vhost-net: add module alias (v2.1)	2012-01-13 10:12:23 -08:00
digsig.txt	crypto: digital signature verification support	2011-11-09 12:10:37 +02:00
DMA-API-HOWTO.txt
DMA-API.txt
DMA-attributes.txt
dma-buf-sharing.txt	dma-buf: Documentation update for Kconfig select	2012-01-13 10:27:33 +00:00
DMA-ISA-LPC.txt
dmaengine.txt	DMAEngine: Define interleaved transfer request api	2011-11-18 12:16:24 +05:30
dontdiff	[S390] Remove Kerntypes leftovers	2011-12-27 11:27:12 +01:00
dynamic-debug-howto.txt
edac.txt
eisa.txt
email-clients.txt
feature-removal-schedule.txt	ARM: at91: removal of CAP9 SoC family	2012-01-20 15:08:38 +01:00
flexible-arrays.txt
futex-requeue-pi.txt
gcov.txt
gpio.txt
highuid.txt
HOWTO	Documentation: Update stable address	2011-12-12 14:14:31 -08:00
hw_random.txt
hwspinlock.txt
init.txt
initrd.txt
intel_txt.txt
Intel-IOMMU.txt
io_ordering.txt
io-mapping.txt
iostats.txt
IPMI.txt
IRQ-affinity.txt
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kernel-doc-nano-HOWTO.txt
kernel-docs.txt
kernel-parameters.txt	kmsg_dump: don't run on non-error paths by default	2012-03-05 15:49:42 -08:00
kmemcheck.txt
kmemleak.txt	kmemleak: Handle percpu memory allocation	2011-12-02 16:12:42 +00:00
kobject.txt
kprobes.txt
kref.txt
ldm.txt
local_ops.txt
lockdep-design.txt	lockdep: Update documentation for lock-class leak detection	2011-12-11 10:31:23 -08:00
lockstat.txt
logo.gif
logo.txt
magic-number.txt
Makefile
ManagementStyle
mca.txt
md.txt	md: create externally visible flags for supporting hot-replace.	2011-12-23 10:17:51 +11:00
media-framework.txt
memory-barriers.txt
memory-hotplug.txt
memory.txt
mono.txt
mutex-design.txt
nmi_watchdog.txt
nommu-mmap.txt
numastat.txt
oops-tracing.txt
padata.txt
parport-lowlevel.txt
parport.txt
pi-futex.txt
pinctrl.txt	pinctrl: fix some pinmux typos	2012-01-26 14:11:31 +01:00
pnp.txt
preempt-locking.txt
printk-formats.txt
prio_tree.txt
ramoops.txt
rbtree.txt
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rt-mutex-design.txt
rt-mutex.txt
rtc.txt
SAK.txt
SecurityBugs
serial-console.txt
sgi-ioc4.txt
sgi-visws.txt
SM501.txt
sparse.txt
spinlocks.txt
stable_api_nonsense.txt
stable_kernel_rules.txt	stable: update documentation to ask for kernel version	2012-01-24 10:50:22 -08:00
SubmitChecklist
SubmittingDrivers
SubmittingPatches
svga.txt
sysfs-rules.txt
sysrq.txt
unaligned-memory-access.txt
unicode.txt
unshare.txt
VGA-softcursor.txt
vgaarbiter.txt	misc latin1 to utf8 conversions	2012-01-02 13:04:55 +01:00
video-output.txt
volatile-considered-harmful.txt
workqueue.txt
xz.txt
zorro.txt