Rafael J. Wysocki 0cc2b4e5a0 PM / QoS: Fix device resume latency PM QoS ... The special value of 0 for device resume latency PM QoS means "no restriction", but there are two problems with that. First, device resume latency PM QoS requests with 0 as the value are always put in front of requests with positive values in the priority lists used internally by the PM QoS framework, causing 0 to be chosen as an effective constraint value. However, that 0 is then interpreted as "no restriction" effectively overriding the other requests with specific restrictions which is incorrect. Second, the users of device resume latency PM QoS have no way to specify that *any* resume latency at all should be avoided, which is an artificial limitation in general. To address these issues, modify device resume latency PM QoS to use S32_MAX as the "no constraint" value and 0 as the "no latency at all" one and rework its users (the cpuidle menu governor, the genpd QoS governor and the runtime PM framework) to follow these changes. Also add a special "n/a" value to the corresponding user space I/F to allow user space to indicate that it cannot accept any resume latencies at all for the given device. Fixes: 85dc0b8a40 (PM / QoS: Make it possible to expose PM QoS latency constraints) Link: https://bugzilla.kernel.org/show_bug.cgi?id=197323 Reported-by: Reinette Chatre <reinette.chatre@intel.com> Tested-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Alex Shi <alex.shi@linaro.org> Cc: All applicable <stable@vger.kernel.org>		2017-10-24 15:20:45 +02:00
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configfs-acpi
configfs-iio
configfs-rdma_cm
configfs-spear-pcie-gadget
configfs-stp-policy
configfs-usb-gadget
configfs-usb-gadget-acm
configfs-usb-gadget-ecm
configfs-usb-gadget-eem
configfs-usb-gadget-ffs
configfs-usb-gadget-hid
configfs-usb-gadget-loopback
configfs-usb-gadget-mass-storage
configfs-usb-gadget-midi
configfs-usb-gadget-ncm
configfs-usb-gadget-obex
configfs-usb-gadget-phonet
configfs-usb-gadget-printer
configfs-usb-gadget-rndis	usb: gadget: add RNDIS configfs options for class/subclass/protocol	2017-08-15 14:18:56 +03:00
configfs-usb-gadget-serial
configfs-usb-gadget-sourcesink
configfs-usb-gadget-subset
configfs-usb-gadget-tcm
configfs-usb-gadget-uac1	usb: gadget: add f_uac1 variant based on a new u_audio api	2017-06-19 09:22:47 +03:00
configfs-usb-gadget-uac1_legacy	usb: gadget: function: make current f_uac1 implementation legacy	2017-06-19 09:22:47 +03:00
configfs-usb-gadget-uac2
configfs-usb-gadget-uvc
debugfs-driver-genwqe
debugfs-ec
debugfs-ideapad
debugfs-olpc
debugfs-pfo-nx-crypto
debugfs-pktcdvd
dev-kmsg
evm
gpio-cdev
ima_policy	IMA: update IMA policy documentation to include pcr= option	2017-06-21 14:37:12 -04:00
ppc-memtrace	Add documentation for the powerpc memtrace debugfs files	2017-08-28 22:09:43 +10:00
procfs-diskstats
procfs-smaps_rollup	mm: add /proc/pid/smaps_rollup	2017-09-06 17:27:30 -07:00
pstore
sysfs-ata
sysfs-block
sysfs-block-bcache
sysfs-block-dm
sysfs-block-rssd
sysfs-block-zram	zram: add config and doc file for writeback feature	2017-09-06 17:27:25 -07:00
sysfs-bus-acpi
sysfs-bus-amba
sysfs-bus-bcma
sysfs-bus-coresight-devices-etb10
sysfs-bus-coresight-devices-etm3x
sysfs-bus-coresight-devices-etm4x
sysfs-bus-coresight-devices-funnel
sysfs-bus-coresight-devices-stm
sysfs-bus-coresight-devices-tmc
sysfs-bus-css
sysfs-bus-event_source-devices-events
sysfs-bus-event_source-devices-format
sysfs-bus-event_source-devices-hv_24x7
sysfs-bus-event_source-devices-hv_gpci
sysfs-bus-fcoe
sysfs-bus-fsi	drivers/fsi: Document FSI master sysfs files in ABI	2017-06-09 11:52:09 +02:00
sysfs-bus-fsl-mc
sysfs-bus-hsi
sysfs-bus-i2c-devices-bq32k
sysfs-bus-i2c-devices-fsa9480
sysfs-bus-i2c-devices-hm6352
sysfs-bus-i2c-devices-lm3533
sysfs-bus-iio	iio: Documentation: Add missing documentation for power attribute	2017-07-17 21:55:59 +01:00
sysfs-bus-iio-accel-bmc150
sysfs-bus-iio-adc-envelope-detector
sysfs-bus-iio-adc-hi8435
sysfs-bus-iio-adc-max9611
sysfs-bus-iio-adc-stm32
sysfs-bus-iio-chemical-vz89x
sysfs-bus-iio-counter-104-quad-8
sysfs-bus-iio-cros-ec
sysfs-bus-iio-dac-dpot-dac
sysfs-bus-iio-distance-srf08
sysfs-bus-iio-frequency-ad9523
sysfs-bus-iio-frequency-adf4350
sysfs-bus-iio-gyro-bmg160
sysfs-bus-iio-health-afe440x
sysfs-bus-iio-humidity-hdc100x
sysfs-bus-iio-ina2xx-adc
sysfs-bus-iio-light-isl29018
sysfs-bus-iio-light-lm3533-als
sysfs-bus-iio-light-tsl2583
sysfs-bus-iio-lptimer-stm32	iio: counter: Add support for STM32 LPTimer	2017-09-04 14:49:30 +01:00
sysfs-bus-iio-magnetometer-hmc5843
sysfs-bus-iio-meas-spec	iio: Documentation: sysfs-bus-iio-meas-spec: Remove (partially) duplicate line	2017-05-07 14:39:17 +01:00
sysfs-bus-iio-mpu6050
sysfs-bus-iio-potentiometer-mcp4531
sysfs-bus-iio-proximity-as3935	iio: proximity: as3935: noise detection + threshold changes	2017-09-25 19:49:21 +01:00
sysfs-bus-iio-timer-stm32	iio: make stm32 trigger driver use INDIO_HARDWARE_TRIGGERED mode	2017-06-11 15:59:05 +01:00
sysfs-bus-iio-trigger-sysfs
sysfs-bus-iio-vf610
sysfs-bus-intel_th-devices-gth
sysfs-bus-intel_th-devices-msc
sysfs-bus-intel_th-devices-pti
sysfs-bus-intel_th-output-devices
sysfs-bus-mcb
sysfs-bus-mdio
sysfs-bus-media
sysfs-bus-mei
sysfs-bus-pci	pci-v4.12-changes	2017-05-08 19:03:25 -07:00
sysfs-bus-pci-devices-cciss
sysfs-bus-pci-drivers-ehci_hcd
sysfs-bus-pci-drivers-janz-cmodio
sysfs-bus-platform
sysfs-bus-rbd
sysfs-bus-rpmsg
sysfs-bus-thunderbolt	thunderbolt: Allow clearing the key	2017-08-28 16:21:32 +02:00
sysfs-bus-umc
sysfs-bus-usb
sysfs-bus-usb-devices-usbsevseg
sysfs-bus-usb-lvstest	usb: misc: lvstest: add entry to place port in compliance mode	2017-08-28 11:43:39 +02:00
sysfs-bus-vfio-mdev
sysfs-c2port
sysfs-cfq-target-latency
sysfs-class
sysfs-class-backlight-driver-adp8870
sysfs-class-backlight-driver-lm3533
sysfs-class-bdi
sysfs-class-cxl
sysfs-class-devfreq
sysfs-class-devfreq-event
sysfs-class-extcon
sysfs-class-fpga-bridge
sysfs-class-fpga-manager
sysfs-class-infiniband
sysfs-class-iommu
sysfs-class-iommu-amd-iommu
sysfs-class-iommu-intel-iommu
sysfs-class-lcd
sysfs-class-led
sysfs-class-led-driver-lm3533
sysfs-class-led-flash
sysfs-class-led-trigger-oneshot
sysfs-class-led-trigger-usbport
sysfs-class-leds-gt683r
sysfs-class-mei
sysfs-class-mic.txt
sysfs-class-mtd	Documentation: ABI: mtd: describe "offset" more precisely	2017-07-13 10:54:45 -07:00
sysfs-class-mux	mux: minimal mux subsystem	2017-06-03 19:29:26 +09:00
sysfs-class-net	net: sysfs: Document "phydev" symbolic link	2017-05-26 14:37:41 -04:00
sysfs-class-net-batman-adv
sysfs-class-net-cdc_ncm
sysfs-class-net-grcan
sysfs-class-net-janz-ican3
sysfs-class-net-mesh
sysfs-class-net-phydev	net: phy: add XAUI and 10GBASE-KR PHY connection types	2017-06-06 21:14:13 -04:00
sysfs-class-net-qmi
sysfs-class-net-queues
sysfs-class-net-statistics
sysfs-class-pktcdvd
sysfs-class-power
sysfs-class-power-twl4030	power: supply: twl4030-charger: remove nonstandard max_current sysfs attribute	2017-06-08 13:05:28 +02:00
sysfs-class-powercap
sysfs-class-pwm
sysfs-class-rc
sysfs-class-rc-nuvoton
sysfs-class-regulator
sysfs-class-remoteproc
sysfs-class-rtc-rtc0-device-rtc_calibration
sysfs-class-scsi_host
sysfs-class-scsi_tape
sysfs-class-stm
sysfs-class-stm_source
sysfs-class-switchtec
sysfs-class-typec	usb: typec: Add a sysfs node to manage port type	2017-06-03 18:02:58 +09:00
sysfs-class-uwb_rc
sysfs-class-uwb_rc-wusbhc
sysfs-class-watchdog
sysfs-class-zram
sysfs-dev
sysfs-devices
sysfs-devices-edac
sysfs-devices-firmware_node
sysfs-devices-lpss_ltr
sysfs-devices-memory
sysfs-devices-mmc
sysfs-devices-online
sysfs-devices-platform-_UDC_-gadget
sysfs-devices-platform-docg3
sysfs-devices-platform-sh_mobile_lcdc_fb
sysfs-devices-power	PM / QoS: Fix device resume latency PM QoS	2017-10-24 15:20:45 +02:00
sysfs-devices-power_resources_D0
sysfs-devices-power_resources_D1
sysfs-devices-power_resources_D2
sysfs-devices-power_resources_D3hot
sysfs-devices-power_resources_wakeup
sysfs-devices-power_state
sysfs-devices-real_power_state
sysfs-devices-resource_in_use
sysfs-devices-soc
sysfs-devices-sun
sysfs-devices-system-cpu
sysfs-devices-system-ibm-rtl
sysfs-devices-system-xen_cpu
sysfs-driver-altera-cvp	fpga manager: Add Altera CvP driver	2017-07-17 17:26:15 +02:00
sysfs-driver-genwqe
sysfs-driver-hid
sysfs-driver-hid-corsair
sysfs-driver-hid-lenovo
sysfs-driver-hid-logitech-lg4ff
sysfs-driver-hid-multitouch
sysfs-driver-hid-picolcd
sysfs-driver-hid-prodikeys
sysfs-driver-hid-roccat-kone
sysfs-driver-hid-srws1
sysfs-driver-hid-wiimote
sysfs-driver-input-axp-pek
sysfs-driver-intel-rapid-start
sysfs-driver-pciback
sysfs-driver-ppi
sysfs-driver-samsung-laptop
sysfs-driver-st
sysfs-driver-tegra-fuse
sysfs-driver-toshiba_acpi
sysfs-driver-toshiba_haps
sysfs-driver-wacom
sysfs-driver-xen-blkback
sysfs-driver-xen-blkfront
sysfs-firmware-acpi
sysfs-firmware-dmi-entries
sysfs-firmware-dmi-tables
sysfs-firmware-efi
sysfs-firmware-efi-esrt
sysfs-firmware-efi-runtime-map
sysfs-firmware-gsmi
sysfs-firmware-log
sysfs-firmware-memmap
sysfs-firmware-ofw	of: document /sys/firmware/fdt	2017-06-30 09:16:51 -05:00
sysfs-firmware-opal-powercap	powerpc/powernv: Add support for powercap framework	2017-08-10 22:39:53 +10:00
sysfs-firmware-opal-psr	powerpc/powernv: Add support to set power-shifting-ratio	2017-08-10 22:40:01 +10:00
sysfs-firmware-qemu_fw_cfg
sysfs-firmware-sfi
sysfs-firmware-sgi_uv
sysfs-fs-ext4
sysfs-fs-f2fs	f2fs: introduce discard_granularity sysfs entry	2017-08-21 15:55:07 -07:00
sysfs-fs-nilfs2
sysfs-fs-xfs
sysfs-hypervisor-xen	xen: add sysfs node for hypervisor build id	2017-06-15 08:50:37 +02:00
sysfs-ibft
sysfs-kernel-boot_params
sysfs-kernel-fscaps
sysfs-kernel-iommu_groups
sysfs-kernel-irq
sysfs-kernel-livepatch
sysfs-kernel-mm
sysfs-kernel-mm-hugepages
sysfs-kernel-mm-ksm
sysfs-kernel-mm-swap	mm, swap: use page-cluster as max window of VMA based swap readahead	2017-10-13 16:18:33 -07:00
sysfs-kernel-slab
sysfs-kernel-uids
sysfs-kernel-vmcoreinfo
sysfs-memory-page-offline
sysfs-module
sysfs-ocfs2
sysfs-platform-asus-laptop
sysfs-platform-asus-wmi
sysfs-platform-at91
sysfs-platform-brcmstb-gisb-arb
sysfs-platform-chipidea-usb2
sysfs-platform-chipidea-usb-otg
sysfs-platform-dell-laptop
sysfs-platform-eeepc-laptop
sysfs-platform-hidma
sysfs-platform-hidma-mgmt
sysfs-platform-i2c-demux-pinctrl
sysfs-platform-ideapad-laptop	platform/x86: ideapad-laptop: Add sysfs interface for touchpad state	2017-05-15 12:06:09 +03:00
sysfs-platform-kim
sysfs-platform-msi-laptop
sysfs-platform-phy-rcar-gen3-usb2
sysfs-platform-renesas_usb3
sysfs-platform-sst-atom
sysfs-platform-tahvo-usb
sysfs-platform-ts5500
sysfs-platform-twl4030-usb
sysfs-platform-usbip-vudc
sysfs-power	Update James Hogan's email address	2017-10-04 17:11:53 -07:00
sysfs-pps
sysfs-profiling
sysfs-ptp
sysfs-tty
sysfs-uevent	doc: update kernel version in sysfs-uevent ABI doc	2017-05-27 11:51:36 +02:00
sysfs-wusb_cbaf