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Rafael J. Wysocki b9c273babc PM / arch: x86: MSR_IA32_ENERGY_PERF_BIAS sysfs interface 
The Performance and Energy Bias Hint (EPB) is expected to be set by
user space through the generic MSR interface, but that interface is
not particularly nice and there are security concerns regarding it,
so it is not always available.

For this reason, add a sysfs interface for reading and updating the
EPB, in the form of a new attribute, energy_perf_bias, located
under /sys/devices/system/cpu/cpu#/power/ for online CPUs that
support the EPB feature.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Acked-by: Borislav Petkov <bp@suse.de>
2019-04-07 22:33:42 +02:00
..
ABI
PM / arch: x86: MSR_IA32_ENERGY_PERF_BIAS sysfs interface
2019-04-07 22:33:42 +02:00
accelerators
…
accounting
psi: cgroup support
2018-10-26 16:26:32 -07:00
acpi
ACPI: Documentation: Fix path for acpidbg tool
2019-03-07 11:28:33 +01:00
admin-guide
PM / arch: x86: MSR_IA32_ENERGY_PERF_BIAS sysfs interface
2019-04-07 22:33:42 +02:00
aoe
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arm
ARM: 8833/1: Ensure that NEON code always compiles with Clang
2019-02-12 15:20:09 +00:00
arm64
arm64 updates for 5.1:
2019-03-10 10:17:23 -07:00
auxdisplay
…
backlight
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block
block: document usage of bio iterator helpers
2019-02-15 08:40:12 -07:00
blockdev
zram: idle writeback fixes and cleanup
2019-01-08 17:15:10 -08:00
bpf
docs/bpf: minor casing/punctuation fixes
2019-03-02 00:40:04 +01:00
bus-devices
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cdrom
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
cgroup-v1
A fairly routine cycle for docs - lots of typo fixes, some new documents,
2019-03-09 09:56:17 -08:00
cma
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connector
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console
Documentation: corrections to console/console.txt
2018-08-10 16:09:40 -06:00
core-api
Merge branch 'akpm' (patches from Andrew)
2019-03-12 10:39:53 -07:00
cpu-freq
Documentation: cpu-freq: Frequencies aren't always sorted
2018-11-07 13:29:04 +01:00
crypto
crypto: skcipher - remove remnants of internal IV generators
2018-12-23 11:52:45 +08:00
dev-tools
Documentation/dev-tools: Use gcc version number instead svn revision number
2019-01-14 17:25:41 -07:00
device-mapper
dm cache: add support for discard passdown to the origin device
2019-03-05 14:53:52 -05:00
devicetree
irqchip updates for 5.1, take #2
2019-03-21 12:30:54 +01:00
doc-guide
docs: kernel-doc: typo "if ... if" -> "if ... is"
2019-02-17 15:38:47 -07:00
driver-api
dmaengine updates for v5.1-rc1
2019-03-14 09:11:54 -07:00
driver-model
Merge branches 'clk-optional', 'clk-devm-clkdev-register', 'clk-allwinner', 'clk-meson' and 'clk-renesas' into clk-next
2019-03-08 10:27:21 -08:00
early-userspace
Correct gen_init_cpio tool's documentation
2018-11-25 12:25:53 -07:00
EDID
Docs/EDID: Calculate CRC while building the code
2018-11-06 07:36:22 -07:00
extcon
…
fault-injection
doc: fault-injection: fix macro name in example
2019-01-07 15:36:11 -07:00
fb
fbdev: fbmem: convert CONFIG_FB_LOGO_CENTER into a cmd line option
2019-01-16 17:42:35 +01:00
features
Documentation/features: Add csky kernel features
2019-01-07 22:22:16 +08:00
filesystems
various tracing and debugging improvements, crediting fixes, some cleanup, and important fallocate fix (fixes three xfstests) and lock fix
2019-03-15 18:52:12 -07:00
firmware_class
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fmc
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
fpga
docs: fpga: add a document for FPGA Device Feature List (DFL) Framework Overview
2018-07-15 13:55:44 +02:00
gpio
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
gpu
Merge drm/drm-next into drm-misc-next
2019-02-11 10:35:35 +01:00
hid
HID: doc: fix wrong data structure reference for UHID_OUTPUT
2018-12-18 14:55:22 +01:00
hwmon
A fairly routine cycle for docs - lots of typo fixes, some new documents,
2019-03-09 09:56:17 -08:00
i2c
i2c: gpio: fault-injector: add 'inject_panic' injector
2019-02-23 10:34:08 +01:00
ia64
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ide
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
iio
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infiniband
Documentation/infiniband: update from locked to pinned_vm
2019-02-07 12:56:23 -07:00
input
doc: Change LXR references to elixir.bootlin.com
2019-02-01 16:05:03 -07:00
interconnect
interconnect: Add generic on-chip interconnect API
2019-01-22 13:37:25 +01:00
ioctl
seccomp: add a return code to trap to userspace
2018-12-11 16:28:41 -08:00
isdn
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
kbuild
kbuild: force all architectures except um to include mandatory-y
2019-03-17 12:56:32 +09:00
kdump
kdump: Document kernel data exported in the vmcoreinfo note
2019-01-15 11:05:28 +01:00
kernel-hacking
doc:it_IT: translation for kernel-hacking
2018-07-26 16:21:09 -06:00
laptops
Documentation: fix lg-laptop.rst warnings
2019-02-11 08:27:47 -07:00
leds
Documentation: Use "while" instead of "whilst"
2018-11-20 09:30:43 -07:00
lightnvm
…
livepatch
livepatch: Remove signal sysfs attribute
2019-01-16 22:09:33 +01:00
locking
Documentation/locking/lockdep: Drop last two chars of sample states
2019-03-04 12:55:18 -07:00
m68k
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
maintainer
docs: Fix more broken references
2018-06-15 18:11:26 -03:00
md
…
media
media: Documentation: fix several typos
2019-03-01 09:54:06 -05:00
memory-devices
…
mic
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mips
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
misc-devices
Documentation: add ibmvmc to toctree(index) and fix warnings
2019-01-14 08:37:17 -07:00
mmc
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
mtd
Documentation: mtd: remove stale pxa3xx NAND controller documentation
2018-09-04 23:37:38 +02:00
namespaces
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netlabel
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
networking
A fairly routine cycle for docs - lots of typo fixes, some new documents,
2019-03-09 09:56:17 -08:00
nfc
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nios2
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nvdimm
libnvdimm/security: Add documentation for nvdimm security support
2018-12-21 12:44:41 -08:00
nvmem
Documentation: nvmem: document cell tables and lookup entries
2018-09-28 15:14:54 +02:00
openrisc
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parisc
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
PCI
pci-v4.20-changes
2018-10-25 06:50:48 -07:00
pcmcia
pcmcia: remove long deprecated pcmcia_request_exclusive_irq() function
2018-08-18 12:30:42 -07:00
perf
Documentation: perf: Add documentation for ThunderX2 PMU uncore driver
2018-12-06 12:29:47 +00:00
phy
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platform
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power
PM/EM: Document the Energy Model framework
2019-01-27 12:29:37 +01:00
powerpc
powerpc/fadump: Reservationless firmware assisted dump
2018-12-21 11:32:49 +11:00
pps
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process
A fairly routine cycle for docs - lots of typo fixes, some new documents,
2019-03-09 09:56:17 -08:00
pti
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ptp
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rapidio
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RCU
A fairly routine cycle for docs - lots of typo fixes, some new documents,
2019-03-09 09:56:17 -08:00
riscv
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s390
Documentation: Use "while" instead of "whilst"
2018-11-20 09:30:43 -07:00
scheduler
sched/doc: Document Energy Aware Scheduling
2019-01-27 12:29:37 +01:00
scsi
scsi: ufs-bsg: Allow reading descriptors
2019-02-27 09:00:02 -05:00
security
doc: security: Add kern-doc for lsm_hooks.h
2019-02-22 08:54:09 -07:00
serial
Documentation: Use "while" instead of "whilst"
2018-11-20 09:30:43 -07:00
sh
sh: remove board_time_init() callback
2018-12-18 16:13:04 +01:00
sound
ASoC: More changes for v5.1
2019-02-28 13:30:55 +01:00
sparc
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sphinx
Documentation/sphinx: allow "functions" with no parameters
2018-06-30 07:52:42 -06:00
sphinx-static
docs: improve readability for people with poorer eyesight
2018-10-07 09:16:50 -06:00
spi
pxa2xx: replace spi_master with spi_controller
2019-01-23 10:59:56 +00:00
sysctl
A fairly routine cycle for docs - lots of typo fixes, some new documents,
2019-03-09 09:56:17 -08:00
target
scsi: target/core: Remove the write_pending_status() callback function
2019-02-04 21:23:59 -05:00
thermal
Documentation: Use "while" instead of "whilst"
2018-11-20 09:30:43 -07:00
timers
Docs: Correct /proc/stat path
2019-02-22 08:50:17 -07:00
trace
doc: trace: Fix documentation for uprobe_profile
2019-02-21 10:28:55 -05:00
translations
A fairly routine cycle for docs - lots of typo fixes, some new documents,
2019-03-09 09:56:17 -08:00
usb
usb: core: add option of only authorizing internal devices
2019-02-22 09:27:55 +01:00
userspace-api
x86/speculation: Add PR_SPEC_DISABLE_NOEXEC
2019-01-29 22:11:49 +01:00
virtual
ARM: some cleanups, direct physical timer assignment, cache sanitization
2019-03-15 15:00:28 -07:00
vm
docs: Use underscore not hyphen in label
2019-02-01 16:04:01 -07:00
w1
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
watchdog
Documentation/watchdog: Add documentation mlx-wdt driver
2019-03-02 15:28:20 +01:00
wimax
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x86
x86/resctrl: Avoid confusion over the new X86_RESCTRL config
2019-02-02 10:34:52 +01:00
xilinx
Documentation: xilinx: Add documentation for eemi APIs
2018-10-09 13:26:05 +02:00
xtensa
xtensa: document boot parameter passing
2019-02-03 18:06:19 -08:00
.gitignore
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atomic_bitops.txt
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atomic_t.txt
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bt8xxgpio.txt
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btmrvl.txt
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bus-virt-phys-mapping.txt
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Changes
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clearing-warn-once.txt
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CodingStyle
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conf.py
This is a fairly typical cycle for documentation. There's some welcome
2018-10-24 18:01:11 +01:00
cpu-load.txt
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cputopology.txt
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crc32.txt
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dcdbas.txt
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debugging-modules.txt
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debugging-via-ohci1394.txt
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dell_rbu.txt
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digsig.txt
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DMA-API-HOWTO.txt
Documentation/DMA-API-HOWTO: update dma_mask sections
2019-02-20 07:29:47 -07:00
DMA-API.txt
virtio: fixes, cleanups
2019-03-10 12:47:57 -07:00
DMA-attributes.txt
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DMA-ISA-LPC.txt
Documentation/DMA-ISA-LPC: fix an incorrect reference
2019-02-11 08:23:07 -07:00
docutils.conf
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dontdiff
kernel/configs: use .incbin directive to embed config_data.gz
2019-03-07 18:32:02 -08:00
efi-stub.txt
efi_stub: update documentation on dtb= parameter
2018-09-09 14:46:44 -06:00
eisa.txt
…
futex-requeue-pi.txt
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gcc-plugins.txt
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highuid.txt
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hw_random.txt
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hwspinlock.txt
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index.rst
Documentation: add ibmvmc to toctree(index) and fix warnings
2019-01-14 08:37:17 -07:00
intel_txt.txt
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Intel-IOMMU.txt
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io_ordering.txt
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io-mapping.txt
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iostats.txt
block: Track DISCARD statistics and output them in stat and diskstat
2018-07-18 08:44:22 -06:00
IPMI.txt
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IRQ-affinity.txt
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IRQ-domain.txt
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IRQ.txt
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irqflags-tracing.txt
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isa.txt
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isapnp.txt
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kernel-per-CPU-kthreads.txt
doc: Update removal of RCU-bh/sched update machinery
2018-08-30 10:59:48 -07:00
kobject.txt
kref/kobject: Improve documentation
2018-12-06 13:57:03 +01:00
kprobes.txt
kprobes/Documentation: Fix various typos
2018-06-22 11:10:55 +02:00
kref.txt
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ldm.txt
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lockup-watchdogs.txt
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logo.gif
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logo.txt
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lsm.txt
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lzo.txt
lib/lzo: separate lzo-rle from lzo
2019-03-07 18:32:03 -08:00
mailbox.txt
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Makefile
kbuild: Add support for DT binding schema checks
2018-12-13 09:41:32 -06:00
memory-barriers.txt
Documentation: Use "while" instead of "whilst"
2018-11-20 09:30:43 -07:00
men-chameleon-bus.txt
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nommu-mmap.txt
Documentation: nommu-map: Fix duplicate word typo
2018-06-26 09:01:27 -06:00
ntb.txt
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numastat.txt
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padata.txt
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parport-lowlevel.txt
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percpu-rw-semaphore.txt
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phy.txt
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pi-futex.txt
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pnp.txt
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preempt-locking.txt
Documentation: preempt-locking: Use better example
2018-10-12 11:35:47 -06:00
pwm.txt
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rbtree.txt
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remoteproc.txt
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rfkill.txt
rfkill: Fix several typos in documentation
2018-06-15 13:36:08 +02:00
robust-futex-ABI.txt
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robust-futexes.txt
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rpmsg.txt
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rtc.txt
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SAK.txt
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sgi-ioc4.txt
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siphash.txt
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SM501.txt
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smsc_ece1099.txt
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speculation.txt
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static-keys.txt
static_keys.txt: Fix trivial spelling mistake
2019-02-06 16:44:16 -07:00
SubmittingPatches
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svga.txt
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switchtec.txt
NTB: switchtec_ntb: Update switchtec documentation with prerequisites for NTB
2018-10-11 11:28:53 -05:00
sync_file.txt
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tee.txt
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this_cpu_ops.txt
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unaligned-memory-access.txt
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vfio-mediated-device.txt
vfio/mdev: Check globally for duplicate devices
2018-06-08 10:24:27 -06:00
vfio.txt
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video-output.txt
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xillybus.txt
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xz.txt
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zorro.txt
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