linux/Documentation
Quentin Perret 2a557de670 UPSTREAM: sched/topology: Introduce a sysctl for Energy Aware Scheduling
In its current state, Energy Aware Scheduling (EAS) starts automatically
on asymmetric platforms having an Energy Model (EM). However, there are
users who want to have an EM (for thermal management for example), but
don't want EAS with it.

In order to let users disable EAS explicitly, introduce a new sysctl
called 'sched_energy_aware'. It is enabled by default so that EAS can
start automatically on platforms where it makes sense. Flipping it to 0
rebuilds the scheduling domains and disables EAS.

Bug: 120440300
Signed-off-by: Quentin Perret <quentin.perret@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: adharmap@codeaurora.org
Cc: chris.redpath@arm.com
Cc: currojerez@riseup.net
Cc: dietmar.eggemann@arm.com
Cc: edubezval@gmail.com
Cc: gregkh@linuxfoundation.org
Cc: javi.merino@kernel.org
Cc: joel@joelfernandes.org
Cc: juri.lelli@redhat.com
Cc: morten.rasmussen@arm.com
Cc: patrick.bellasi@arm.com
Cc: pkondeti@codeaurora.org
Cc: rjw@rjwysocki.net
Cc: skannan@codeaurora.org
Cc: smuckle@google.com
Cc: srinivas.pandruvada@linux.intel.com
Cc: thara.gopinath@linaro.org
Cc: tkjos@google.com
Cc: valentin.schneider@arm.com
Cc: vincent.guittot@linaro.org
Cc: viresh.kumar@linaro.org
Link: https://lkml.kernel.org/r/20181203095628.11858-11-quentin.perret@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit 8d5d0cfb63)
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I4ca842d07b82869cfab7542c8c4351f631e1024d
2020-02-19 10:50:59 +00:00
..
ABI Merge remote-tracking branch 'aosp/upstream-f2fs-stable-linux-4.19.y' into android-4.19 2020-02-07 22:43:48 +00:00
accelerators ocxl: Document new OCXL IOCTLs 2018-06-03 20:40:33 +10:00
accounting FROMLIST: psi: introduce psi monitor 2019-03-22 23:07:14 +00:00
acpi ACPI: property: graph: Update graph documentation to use generic references 2018-07-23 12:44:52 +02:00
admin-guide UPSTREAM: dynamic_debug: allow to work if debugfs is disabled 2020-02-12 14:32:34 -08:00
aoe
arm ARM: 8833/1: Ensure that NEON code always compiles with Clang 2019-04-05 22:33:08 +02:00
arm64 This is the 4.19.79 stable release 2019-10-11 19:13:57 +02:00
auxdisplay Doc: misc-devices: move lcd-panel-cgram.txt to auxdisplay/ 2018-04-12 16:08:02 +02:00
backlight
block BACKPORT: FROMLIST: Update Inline Encryption from v5 to v6 of patch series 2020-01-13 07:11:38 -08:00
blockdev UPSTREAM: zram: idle writeback fixes and cleanup 2019-01-22 10:22:17 -08:00
bpf Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2018-08-07 11:02:05 -07:00
bus-devices
cdrom Documentation/cdrom: fix German sharp s in LaTex 2018-03-08 19:35:29 -07:00
cgroup-v1 page cache: use xa_lock 2018-04-11 10:28:39 -07:00
cma
connector
console Documentation: corrections to console/console.txt 2018-08-10 16:09:40 -06:00
core-api idr: Change documentation license 2018-10-15 16:31:29 -04:00
cpu-freq cpufreq: Drop cpufreq_table_validate_and_show() 2018-04-10 08:40:45 +02:00
cpuidle cpuidle: Add definition of residency to sysfs documentation 2018-04-09 13:44:37 +02:00
crypto crypto: remove redundant type flags from tfm allocation 2018-07-09 00:30:29 +08:00
dev-tools UPSTREAM: kcov: fix struct layout for kcov_remote_arg 2020-01-15 14:52:07 +00:00
device-mapper ANDROID: dm-bow: Add dm-bow feature 2019-03-25 19:56:09 +00:00
devicetree This is the 4.19.99 stable release 2020-01-27 15:55:44 +01:00
doc-guide Documentation/sphinx: allow "functions" with no parameters 2018-06-30 07:52:42 -06:00
driver-api FROMGIT: driver core: Add support for linking devices during device addition 2019-10-07 16:44:12 -07:00
driver-model FROMGIT: docs: driver-model: Add documentation for sync_state 2019-10-24 14:23:14 -07:00
early-userspace initramfs: move gen_initramfs_list.sh from scripts/ to usr/ 2018-08-22 23:21:44 +09:00
EDID
extcon
fault-injection Documentation: nvme: Documentation for nvme fault injection 2018-03-26 08:53:43 -06:00
fb uvesafb: Fix URLs in the documentation 2018-09-26 18:11:23 +02:00
features ARM: 8777/1: Hook up SYNC_CORE functionality for sys_membarrier() 2018-07-11 11:02:08 +01:00
filesystems Merge remote-tracking branch 'aosp/upstream-f2fs-stable-linux-4.19.y' into android-4.19 2020-02-07 22:43:48 +00:00
firmware_class
fmc
fpga docs: fpga: add a document for FPGA Device Feature List (DFL) Framework Overview 2018-07-15 13:55:44 +02:00
gpio Documentation: gpio: Move drivers-on-gpio.txt to driver-api 2018-03-23 04:22:29 +01:00
gpu drm/msm/gpu: Add the buffer objects from the submit to the crash dump 2018-07-30 08:50:10 -04:00
hid HID: doc: fix wrong data structure reference for UHID_OUTPUT 2019-12-05 09:20:36 +01:00
hwmon hwmon: (ina2xx) fix sysfs shunt resistor read access 2018-08-26 17:45:25 -07:00
i2c i2c: i801: Add support for Intel Comet Lake 2019-05-04 09:20:15 +02:00
ia64 ia64: doc: tweak whitespace for 'console=' parameter 2018-03-05 14:41:38 -08:00
ide
iio
infiniband Documentation/ABI: update infiniband sysfs interfaces 2018-02-23 08:18:33 -07:00
input input: add MT_TOOL_DIAL 2018-07-17 15:33:47 +02:00
ioctl Char/Misc driver patches for 4.19-rc1 2018-08-18 11:04:51 -07:00
isdn Documentation/isdn: check and fix dead links ... 2018-03-26 12:31:13 -04:00
kbuild kbuild: Fix LOADLIBES rename in Documentation/kbuild/makefiles.txt 2018-08-22 23:21:42 +09:00
kdump
kernel-hacking doc:it_IT: translation for kernel-hacking 2018-07-26 16:21:09 -06:00
laptops platform/x86: thinkpad_acpi: silence HKEY 0x6032, 0x60f0, 0x6030 2018-05-07 15:10:31 +03:00
leds Documentation: leds: Update 00-INDEX file 2017-10-23 20:17:03 +02:00
lightnvm
livepatch livepatch: Remove not longer valid limitations from the documentation 2018-05-24 15:37:57 +02:00
locking locking: Implement an algorithm choice for Wound-Wait mutexes 2018-07-03 09:44:36 +02:00
m68k
maintainer docs: Fix more broken references 2018-06-15 18:11:26 -03:00
md raid5-ppl: PPL support for disks with write-back cache enabled 2018-01-15 14:29:42 -08:00
media media: replace ADOBERGB by OPRGB 2018-11-13 11:08:54 -08:00
memory-devices
mic
mips Documentation: mips: Update AU1xxx_IDE Kconfig dependencies 2018-02-01 12:45:35 -07:00
misc-devices pci_endpoint_test: Add 2 ioctl commands 2018-07-19 11:46:57 +01:00
mmc
mtd mtd: spi-nor: add an API to restore the status of SPI flash chip 2017-12-13 00:36:00 +01:00
namespaces
netlabel
networking tcp: add tcp_min_snd_mss sysctl 2019-06-17 19:51:56 +02:00
nfc
nios2
nvdimm
nvmem
openrisc Documentation: openrisc: Updates to README 2017-10-30 21:37:53 +09:00
parisc
PCI Merge branch 'remotes/lorenzo/pci/dwc' 2018-08-15 14:59:11 -05:00
pcmcia pcmcia: remove long deprecated pcmcia_request_exclusive_irq() function 2018-08-18 12:30:42 -07:00
perf drivers/bus: Move Arm CCN PMU driver 2018-03-06 17:26:15 +01:00
phy
platform
power ANDROID: PM / EM: Document the support for legacy (deprecated) EM 2019-03-08 00:50:07 +00:00
powerpc powerpc: Document issues with TM on POWER9 2018-07-02 23:54:29 +10:00
pps
process stable-kernel-rules.rst: add link to networking patch queue 2019-03-23 20:10:10 +01:00
pti
ptp ptp: Fix documentation to match code. 2018-03-26 12:13:21 -04:00
rapidio Documentation: rapidio: move sysfs interface to ABI 2018-02-23 08:25:45 -07:00
RCU rculist: Improve documentation for list_for_each_entry_from_rcu() 2018-07-12 15:39:25 -07:00
riscv perf: riscv: Add Document for Future Porting Guide 2018-06-04 14:02:11 -07:00
s390 vfio-ccw: update documentation 2018-03-01 17:32:14 +01:00
scheduler ANDROID: sched/tune: Move SchedTune cpu API into UtilClamp wrappers 2020-02-01 15:03:17 +00:00
scsi scsi: documentation: add scsi_mod.use_blk_mq to scsi-parameters 2018-08-27 12:26:10 -04:00
security Kbuild: rename CC_STACKPROTECTOR[_STRONG] config variables 2018-06-14 12:21:18 +09:00
serial
sh
sound ASoC: Updates for v4.19 2018-08-13 12:12:31 +02:00
sparc sparc64: Add support for ADI (Application Data Integrity) 2018-03-18 07:38:48 -07:00
sphinx doc: Cope with Sphinx logging deprecations 2019-06-09 09:17:21 +02:00
sphinx-static
spi
sysctl UPSTREAM: sched/topology: Introduce a sysctl for Energy Aware Scheduling 2020-02-19 10:50:59 +00:00
target
thermal thermal: Add cooling device's statistics in sysfs 2018-04-02 21:49:01 +08:00
timers timekeeping.txt: Correct maxCount of n-bit binary counter 2018-07-23 09:33:06 -06:00
trace This was a moderately busy cycle for docs, with the usual collection of 2018-08-14 14:29:31 -07:00
translations This was a moderately busy cycle for docs, with the usual collection of 2018-08-14 14:29:31 -07:00
usb USB: rio500: Remove Rio 500 kernel driver 2019-10-17 13:44:47 -07:00
userspace-api Documentation: Add section about CPU vulnerabilities for Spectre 2019-07-14 08:11:17 +02:00
virtual kvm: Convert kvm_lock to a mutex 2019-11-12 19:21:40 +01:00
vm docs/vm: move ksm and transhuge from "user" to "internals" section. 2018-05-29 06:45:55 -06:00
w1 w1: fix w1_ds2438 documentation 2018-07-07 17:27:13 +02:00
watchdog watchdog: remove bfin_wdt driver 2018-03-26 15:57:04 +02:00
wimax
x86 x86/speculation/taa: Add documentation for TSX Async Abort 2019-11-12 19:21:34 +01:00
xtensa xtensa: add support for KASAN 2017-12-16 22:37:12 -08:00
.gitignore
00-INDEX docs: admin-guide: add cgroup-v2 documentation 2018-05-10 15:42:41 -06:00
atomic_bitops.txt locking/atomic/bitops: Document and clarify ordering semantics for failed test_and_{}_bit() 2018-02-13 14:55:53 +01:00
atomic_t.txt x86/atomic: Fix smp_mb__{before,after}_atomic() 2019-07-26 09:14:08 +02:00
bt8xxgpio.txt
btmrvl.txt
bus-virt-phys-mapping.txt
Changes
clearing-warn-once.txt kernel debug: support resetting WARN*_ONCE 2017-11-17 16:10:00 -08:00
CodingStyle
conf.py docs: Fix conf.py for Sphinx 2.0 2019-06-09 09:17:20 +02:00
cpu-load.txt
cputopology.txt
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt Documentation: remove stale firmware API reference 2018-05-14 16:44:41 +02:00
digsig.txt
DMA-API-HOWTO.txt
DMA-API.txt
DMA-attributes.txt
DMA-ISA-LPC.txt
docutils.conf
dontdiff unicode: refactor the rule for regenerating utf8data.h 2019-09-23 13:23:29 -07:00
efi-stub.txt
eisa.txt
flexible-arrays.txt
futex-requeue-pi.txt
gcc-plugins.txt
highuid.txt
hw_random.txt
hwspinlock.txt
index.rst x86/speculation/mds: Add mds_clear_cpu_buffers() 2019-05-14 19:17:54 +02:00
intel_txt.txt
Intel-IOMMU.txt
io_ordering.txt
io-mapping.txt
iostats.txt block: Track DISCARD statistics and output them in stat and diskstat 2018-07-18 08:44:22 -06:00
IPMI.txt ipmi: Make IPMI panic strings always available 2017-09-27 16:03:45 -05:00
IRQ-affinity.txt
IRQ-domain.txt irqdomain: Kill CONFIG_IRQ_DOMAIN_DEBUG 2018-01-24 12:32:58 +01:00
IRQ.txt
irqflags-tracing.txt
isa.txt
isapnp.txt
kernel-per-CPU-kthreads.txt
kobject.txt
kprobes.txt kprobes/Documentation: Fix various typos 2018-06-22 11:10:55 +02:00
kref.txt
ldm.txt
lockup-watchdogs.txt
logo.gif
logo.txt
lsm.txt
lzo.txt
mailbox.txt
Makefile Documentation: add script and build target to check for broken file references 2017-10-12 11:07:42 -06:00
memory-barriers.txt sched/Documentation: Update wake_up() & co. memory-barrier guarantees 2018-07-17 09:30:34 +02:00
memory-hotplug.txt
men-chameleon-bus.txt
nommu-mmap.txt Documentation: nommu-map: Fix duplicate word typo 2018-06-26 09:01:27 -06:00
ntb.txt
numastat.txt
padata.txt
parport-lowlevel.txt
percpu-rw-semaphore.txt
phy.txt
pi-futex.txt Documentation: fix locking rt-mutex doc refs 2017-10-19 12:56:44 -06:00
pnp.txt
preempt-locking.txt
pwm.txt
rbtree.txt
remoteproc.txt
rfkill.txt rfkill: Fix several typos in documentation 2018-06-15 13:36:08 +02:00
robust-futex-ABI.txt
robust-futexes.txt futex: Update comments and docs about return values of arch futex code 2019-07-03 13:14:49 +02:00
rpmsg.txt
rtc.txt Documentation: rtc: move iotcl interface documentation to ABI 2018-01-12 00:20:41 +01:00
SAK.txt
sgi-ioc4.txt
siphash.txt
SM501.txt
smsc_ece1099.txt
speculation.txt Documentation: Document array_index_nospec 2018-01-30 21:54:28 +01:00
static-keys.txt
SubmittingPatches
svga.txt documentation/svga.txt: update outdated file 2017-11-20 10:45:50 -07:00
switchtec.txt NTB: switchtec_ntb: Update switchtec documentation with notes for NTB 2017-11-18 20:37:13 -05:00
sync_file.txt
tee.txt
this_cpu_ops.txt
unaligned-memory-access.txt
vfio-mediated-device.txt vfio/mdev: Check globally for duplicate devices 2018-06-08 10:24:27 -06:00
vfio.txt vfio: fix documentation 2018-05-08 09:16:41 -06:00
video-output.txt
xillybus.txt
xz.txt
zorro.txt