diff options
Diffstat (limited to 'Documentation/ABI/testing')
| -rw-r--r-- | Documentation/ABI/testing/configfs-usb-gadget | 4 | ||||
| -rw-r--r-- | Documentation/ABI/testing/ima_policy | 16 | ||||
| -rw-r--r-- | Documentation/ABI/testing/rtc-cdev | 8 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-iio | 13 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-iio-dma-buffer | 19 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-mdio | 63 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-devfreq | 18 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-power | 3 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-devices-system-cpu | 6 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-pciback | 13 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-xen-blkback | 10 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-f2fs | 280 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-platform-asus-wmi | 10 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-power | 13 | ||||
| -rw-r--r-- | Documentation/ABI/testing/usb-charger-uevent | 46 |
15 files changed, 402 insertions, 120 deletions
diff --git a/Documentation/ABI/testing/configfs-usb-gadget b/Documentation/ABI/testing/configfs-usb-gadget index 95a36589a66b..4594cc2435e8 100644 --- a/Documentation/ABI/testing/configfs-usb-gadget +++ b/Documentation/ABI/testing/configfs-usb-gadget @@ -16,6 +16,10 @@ Description: write UDC's name found in /sys/class/udc/* to bind a gadget, empty string "" to unbind. + max_speed - maximum speed the driver supports. Valid + names are super-speed-plus, super-speed, + high-speed, full-speed, and low-speed. + bDeviceClass - USB device class code bDeviceSubClass - USB device subclass code bDeviceProtocol - USB device protocol code diff --git a/Documentation/ABI/testing/ima_policy b/Documentation/ABI/testing/ima_policy index 29aaedf33246..cd572912c593 100644 --- a/Documentation/ABI/testing/ima_policy +++ b/Documentation/ABI/testing/ima_policy @@ -25,11 +25,11 @@ Description: lsm: [[subj_user=] [subj_role=] [subj_type=] [obj_user=] [obj_role=] [obj_type=]] option: [[appraise_type=]] [template=] [permit_directio] - [appraise_flag=] + [appraise_flag=] [keyrings=] base: func:= [BPRM_CHECK][MMAP_CHECK][CREDS_CHECK][FILE_CHECK][MODULE_CHECK] [FIRMWARE_CHECK] [KEXEC_KERNEL_CHECK] [KEXEC_INITRAMFS_CHECK] - [KEXEC_CMDLINE] + [KEXEC_CMDLINE] [KEY_CHECK] mask:= [[^]MAY_READ] [[^]MAY_WRITE] [[^]MAY_APPEND] [[^]MAY_EXEC] fsmagic:= hex value @@ -42,6 +42,9 @@ Description: appraise_flag:= [check_blacklist] Currently, blacklist check is only for files signed with appended signature. + keyrings:= list of keyrings + (eg, .builtin_trusted_keys|.ima). Only valid + when action is "measure" and func is KEY_CHECK. template:= name of a defined IMA template type (eg, ima-ng). Only valid when action is "measure". pcr:= decimal value @@ -113,3 +116,12 @@ Description: Example of appraise rule allowing modsig appended signatures: appraise func=KEXEC_KERNEL_CHECK appraise_type=imasig|modsig + + Example of measure rule using KEY_CHECK to measure all keys: + + measure func=KEY_CHECK + + Example of measure rule using KEY_CHECK to only measure + keys added to .builtin_trusted_keys or .ima keyring: + + measure func=KEY_CHECK keyrings=.builtin_trusted_keys|.ima diff --git a/Documentation/ABI/testing/rtc-cdev b/Documentation/ABI/testing/rtc-cdev index 97447283f13b..25910c3c3d7e 100644 --- a/Documentation/ABI/testing/rtc-cdev +++ b/Documentation/ABI/testing/rtc-cdev @@ -33,6 +33,14 @@ Description: Requires a separate RTC_PIE_ON call to enable the periodic interrupts. + * RTC_VL_READ: Read the voltage inputs status of the RTC when + supported. The value is a bit field of RTC_VL_*, giving the + status of the main and backup voltages. + + * RTC_VL_CLEAR: Clear the voltage status of the RTC. Some RTCs + need user interaction when the backup power provider is + replaced or charged to be able to clear the status. + The ioctl() calls supported by the older /dev/rtc interface are also supported by the newer RTC class framework. However, because the chips and systems are not standardized, some PC/AT diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index faaa2166d741..d3e53a6d8331 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -1726,3 +1726,16 @@ Contact: linux-iio@vger.kernel.org Description: List of valid periods (in seconds) for which the light intensity must be above the threshold level before interrupt is asserted. + +What: /sys/bus/iio/devices/iio:deviceX/in_filter_notch_center_frequency +KernelVersion: 5.5 +Contact: linux-iio@vger.kernel.org +Description: + Center frequency in Hz for a notch filter. Used i.e. for line + noise suppression. + +What: /sys/bus/iio/devices/iio:deviceX/in_temp_thermocouple_type +KernelVersion: 5.5 +Contact: linux-iio@vger.kernel.org +Description: + One of the following thermocouple types: B, E, J, K, N, R, S, T. diff --git a/Documentation/ABI/testing/sysfs-bus-iio-dma-buffer b/Documentation/ABI/testing/sysfs-bus-iio-dma-buffer new file mode 100644 index 000000000000..d526e6571001 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-iio-dma-buffer @@ -0,0 +1,19 @@ +What: /sys/bus/iio/devices/iio:deviceX/buffer/length_align_bytes +KernelVersion: 5.4 +Contact: linux-iio@vger.kernel.org +Description: + DMA buffers tend to have a alignment requirement for the + buffers. If this alignment requirement is not met samples might + be dropped from the buffer. + + This property reports the alignment requirements in bytes. + This means that the buffer size in bytes needs to be a integer + multiple of the number reported by this file. + + The alignment requirements in number of sample sets will depend + on the enabled channels and the bytes per channel. This means + that the alignment requirement in samples sets might change + depending on which and how many channels are enabled. Whereas + the alignment requirement reported in bytes by this property + will remain static and does not depend on which channels are + enabled. diff --git a/Documentation/ABI/testing/sysfs-bus-mdio b/Documentation/ABI/testing/sysfs-bus-mdio new file mode 100644 index 000000000000..da86efc7781b --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-mdio @@ -0,0 +1,63 @@ +What: /sys/bus/mdio_bus/devices/.../statistics/ +Date: January 2020 +KernelVersion: 5.6 +Contact: netdev@vger.kernel.org +Description: + This folder contains statistics about global and per + MDIO bus address statistics. + +What: /sys/bus/mdio_bus/devices/.../statistics/transfers +Date: January 2020 +KernelVersion: 5.6 +Contact: netdev@vger.kernel.org +Description: + Total number of transfers for this MDIO bus. + +What: /sys/bus/mdio_bus/devices/.../statistics/errors +Date: January 2020 +KernelVersion: 5.6 +Contact: netdev@vger.kernel.org +Description: + Total number of transfer errors for this MDIO bus. + +What: /sys/bus/mdio_bus/devices/.../statistics/writes +Date: January 2020 +KernelVersion: 5.6 +Contact: netdev@vger.kernel.org +Description: + Total number of write transactions for this MDIO bus. + +What: /sys/bus/mdio_bus/devices/.../statistics/reads +Date: January 2020 +KernelVersion: 5.6 +Contact: netdev@vger.kernel.org +Description: + Total number of read transactions for this MDIO bus. + +What: /sys/bus/mdio_bus/devices/.../statistics/transfers_<addr> +Date: January 2020 +KernelVersion: 5.6 +Contact: netdev@vger.kernel.org +Description: + Total number of transfers for this MDIO bus address. + +What: /sys/bus/mdio_bus/devices/.../statistics/errors_<addr> +Date: January 2020 +KernelVersion: 5.6 +Contact: netdev@vger.kernel.org +Description: + Total number of transfer errors for this MDIO bus address. + +What: /sys/bus/mdio_bus/devices/.../statistics/writes_<addr> +Date: January 2020 +KernelVersion: 5.6 +Contact: netdev@vger.kernel.org +Description: + Total number of write transactions for this MDIO bus address. + +What: /sys/bus/mdio_bus/devices/.../statistics/reads_<addr> +Date: January 2020 +KernelVersion: 5.6 +Contact: netdev@vger.kernel.org +Description: + Total number of read transactions for this MDIO bus address. diff --git a/Documentation/ABI/testing/sysfs-class-devfreq b/Documentation/ABI/testing/sysfs-class-devfreq index 01196e19afca..9758eb85ade3 100644 --- a/Documentation/ABI/testing/sysfs-class-devfreq +++ b/Documentation/ABI/testing/sysfs-class-devfreq @@ -7,6 +7,13 @@ Description: The name of devfreq object denoted as ... is same as the name of device using devfreq. +What: /sys/class/devfreq/.../name +Date: November 2019 +Contact: Chanwoo Choi <cw00.choi@samsung.com> +Description: + The /sys/class/devfreq/.../name shows the name of device + of the corresponding devfreq object. + What: /sys/class/devfreq/.../governor Date: September 2011 Contact: MyungJoo Ham <myungjoo.ham@samsung.com> @@ -48,12 +55,15 @@ What: /sys/class/devfreq/.../trans_stat Date: October 2012 Contact: MyungJoo Ham <myungjoo.ham@samsung.com> Description: - This ABI shows the statistics of devfreq behavior on a - specific device. It shows the time spent in each state and - the number of transitions between states. + This ABI shows or clears the statistics of devfreq behavior + on a specific device. It shows the time spent in each state + and the number of transitions between states. In order to activate this ABI, the devfreq target device driver should provide the list of available frequencies - with its profile. + with its profile. If need to reset the statistics of devfreq + behavior on a specific device, enter 0(zero) to 'trans_stat' + as following: + echo 0 > /sys/class/devfreq/.../trans_stat What: /sys/class/devfreq/.../userspace/set_freq Date: September 2011 diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power index 27edc06e2495..bf3b48f022dc 100644 --- a/Documentation/ABI/testing/sysfs-class-power +++ b/Documentation/ABI/testing/sysfs-class-power @@ -189,7 +189,8 @@ Description: Access: Read Valid values: "Unknown", "Good", "Overheat", "Dead", "Over voltage", "Unspecified failure", "Cold", - "Watchdog timer expire", "Safety timer expire" + "Watchdog timer expire", "Safety timer expire", + "Over current" What: /sys/class/power_supply/<supply_name>/precharge_current Date: June 2017 diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu index fc20cde63d1e..2e0e3b45d02a 100644 --- a/Documentation/ABI/testing/sysfs-devices-system-cpu +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu @@ -196,6 +196,12 @@ Description: does not reflect it. Likewise, if one enables a deep state but a lighter state still is disabled, then this has no effect. +What: /sys/devices/system/cpu/cpuX/cpuidle/stateN/default_status +Date: December 2019 +KernelVersion: v5.6 +Contact: Linux power management list <linux-pm@vger.kernel.org> +Description: + (RO) The default status of this state, "enabled" or "disabled". What: /sys/devices/system/cpu/cpuX/cpuidle/stateN/residency Date: March 2014 diff --git a/Documentation/ABI/testing/sysfs-driver-pciback b/Documentation/ABI/testing/sysfs-driver-pciback index 6a733bfa37e6..73308c2b81b0 100644 --- a/Documentation/ABI/testing/sysfs-driver-pciback +++ b/Documentation/ABI/testing/sysfs-driver-pciback @@ -11,3 +11,16 @@ Description: #echo 00:19.0-E0:2:FF > /sys/bus/pci/drivers/pciback/quirks will allow the guest to read and write to the configuration register 0x0E. + +What: /sys/bus/pci/drivers/pciback/allow_interrupt_control +Date: Jan 2020 +KernelVersion: 5.6 +Contact: xen-devel@lists.xenproject.org +Description: + List of devices which can have interrupt control flag (INTx, + MSI, MSI-X) set by a connected guest. It is meant to be set + only when the guest is a stubdomain hosting device model (qemu) + and the actual device is assigned to a HVM. It is not safe + (similar to permissive attribute) to set for a devices assigned + to a PV guest. The device is automatically removed from this + list when the connected pcifront terminates. diff --git a/Documentation/ABI/testing/sysfs-driver-xen-blkback b/Documentation/ABI/testing/sysfs-driver-xen-blkback index 4e7babb3ba1f..ecb7942ff146 100644 --- a/Documentation/ABI/testing/sysfs-driver-xen-blkback +++ b/Documentation/ABI/testing/sysfs-driver-xen-blkback @@ -25,3 +25,13 @@ Description: allocated without being in use. The time is in seconds, 0 means indefinitely long. The default is 60 seconds. + +What: /sys/module/xen_blkback/parameters/buffer_squeeze_duration_ms +Date: December 2019 +KernelVersion: 5.6 +Contact: SeongJae Park <sjpark@amazon.de> +Description: + When memory pressure is reported to blkback this option + controls the duration in milliseconds that blkback will not + cache any page not backed by a grant mapping. + The default is 10ms. diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index aedeae1e8ec1..1a6cd5397129 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -1,37 +1,40 @@ What: /sys/fs/f2fs/<disk>/gc_max_sleep_time Date: July 2013 Contact: "Namjae Jeon" <namjae.jeon@samsung.com> -Description: - Controls the maximun sleep time for gc_thread. Time - is in milliseconds. +Description: Controls the maximum sleep time for gc_thread. Time + is in milliseconds. What: /sys/fs/f2fs/<disk>/gc_min_sleep_time Date: July 2013 Contact: "Namjae Jeon" <namjae.jeon@samsung.com> -Description: - Controls the minimum sleep time for gc_thread. Time - is in milliseconds. +Description: Controls the minimum sleep time for gc_thread. Time + is in milliseconds. What: /sys/fs/f2fs/<disk>/gc_no_gc_sleep_time Date: July 2013 Contact: "Namjae Jeon" <namjae.jeon@samsung.com> -Description: - Controls the default sleep time for gc_thread. Time - is in milliseconds. +Description: Controls the default sleep time for gc_thread. Time + is in milliseconds. What: /sys/fs/f2fs/<disk>/gc_idle Date: July 2013 Contact: "Namjae Jeon" <namjae.jeon@samsung.com> -Description: - Controls the victim selection policy for garbage collection. +Description: Controls the victim selection policy for garbage collection. + Setting gc_idle = 0(default) will disable this option. Setting + gc_idle = 1 will select the Cost Benefit approach & setting + gc_idle = 2 will select the greedy approach. What: /sys/fs/f2fs/<disk>/reclaim_segments Date: October 2013 Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> -Description: - Controls the issue rate of segment discard commands. - -What: /sys/fs/f2fs/<disk>/max_blkaddr +Description: This parameter controls the number of prefree segments to be + reclaimed. If the number of prefree segments is larger than + the number of segments in the proportion to the percentage + over total volume size, f2fs tries to conduct checkpoint to + reclaim the prefree segments to free segments. + By default, 5% over total # of segments. + +What: /sys/fs/f2fs/<disk>/main_blkaddr Date: November 2019 Contact: "Ramon Pantin" <pantin@google.com> Description: @@ -40,227 +43,278 @@ Description: What: /sys/fs/f2fs/<disk>/ipu_policy Date: November 2013 Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> -Description: - Controls the in-place-update policy. +Description: Controls the in-place-update policy. + updates in f2fs. User can set: + 0x01: F2FS_IPU_FORCE, 0x02: F2FS_IPU_SSR, + 0x04: F2FS_IPU_UTIL, 0x08: F2FS_IPU_SSR_UTIL, + 0x10: F2FS_IPU_FSYNC, 0x20: F2FS_IPU_ASYNC, + 0x40: F2FS_IPU_NOCACHE. + Refer segment.h for details. What: /sys/fs/f2fs/<disk>/min_ipu_util Date: November 2013 Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> -Description: - Controls the FS utilization condition for the in-place-update - policies. +Description: Controls the FS utilization condition for the in-place-update + policies. It is used by F2FS_IPU_UTIL and F2FS_IPU_SSR_UTIL policies. What: /sys/fs/f2fs/<disk>/min_fsync_blocks Date: September 2014 Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> -Description: - Controls the dirty page count condition for the in-place-update - policies. +Description: Controls the dirty page count condition for the in-place-update + policies. What: /sys/fs/f2fs/<disk>/min_seq_blocks Date: August 2018 Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> -Description: - Controls the dirty page count condition for batched sequential - writes in ->writepages. - +Description: Controls the dirty page count condition for batched sequential + writes in writepages. What: /sys/fs/f2fs/<disk>/min_hot_blocks Date: March 2017 Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> -Description: - Controls the dirty page count condition for redefining hot data. +Description: Controls the dirty page count condition for redefining hot data. What: /sys/fs/f2fs/<disk>/min_ssr_sections Date: October 2017 Contact: "Chao Yu" <yuchao0@huawei.com> -Description: - Controls the fee section threshold to trigger SSR allocation. +Description: Controls the free section threshold to trigger SSR allocation. + If this is large, SSR mode will be enabled early. What: /sys/fs/f2fs/<disk>/max_small_discards Date: November 2013 Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> -Description: - Controls the issue rate of small discard commands. +Description: Controls the issue rate of discard commands that consist of small + blocks less than 2MB. The candidates to be discarded are cached until + checkpoint is triggered, and issued during the checkpoint. + By default, it is disabled with 0. -What: /sys/fs/f2fs/<disk>/discard_granularity -Date: July 2017 -Contact: "Chao Yu" <yuchao0@huawei.com> -Description: - Controls discard granularity of inner discard thread, inner thread +What: /sys/fs/f2fs/<disk>/discard_granularity +Date: July 2017 +Contact: "Chao Yu" <yuchao0@huawei.com> +Description: Controls discard granularity of inner discard thread. Inner thread will not issue discards with size that is smaller than granularity. - The unit size is one block, now only support configuring in range - of [1, 512]. + The unit size is one block(4KB), now only support configuring + in range of [1, 512]. Default value is 4(=16KB). -What: /sys/fs/f2fs/<disk>/umount_discard_timeout -Date: January 2019 -Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> -Description: - Set timeout to issue discard commands during umount. - Default: 5 secs +What: /sys/fs/f2fs/<disk>/umount_discard_timeout +Date: January 2019 +Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> +Description: Set timeout to issue discard commands during umount. + Default: 5 secs What: /sys/fs/f2fs/<disk>/max_victim_search Date: January 2014 Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> -Description: - Controls the number of trials to find a victim segment. +Description: Controls the number of trials to find a victim segment + when conducting SSR and cleaning operations. The default value + is 4096 which covers 8GB block address range. What: /sys/fs/f2fs/<disk>/migration_granularity Date: October 2018 Contact: "Chao Yu" <yuchao0@huawei.com> -Description: - Controls migration granularity of garbage collection on large - section, it can let GC move partial segment{s} of one section - in one GC cycle, so that dispersing heavy overhead GC to - multiple lightweight one. +Description: Controls migration granularity of garbage collection on large + section, it can let GC move partial segment{s} of one section + in one GC cycle, so that dispersing heavy overhead GC to + multiple lightweight one. What: /sys/fs/f2fs/<disk>/dir_level Date: March 2014 Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> -Description: - Controls the directory level for large directory. +Description: Controls the directory level for large directory. If a + directory has a number of files, it can reduce the file lookup + latency by increasing this dir_level value. Otherwise, it + needs to decrease this value to reduce the space overhead. + The default value is 0. What: /sys/fs/f2fs/<disk>/ram_thresh Date: March 2014 Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> -Description: - Controls the memory footprint used by f2fs. +Description: Controls the memory footprint used by free nids and cached + nat entries. By default, 1 is set, which indicates + 10 MB / 1 GB RAM. What: /sys/fs/f2fs/<disk>/batched_trim_sections Date: February 2015 Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> -Description: - Controls the trimming rate in batch mode. - <deprecated> +Description: Controls the trimming rate in batch mode. + <deprecated> What: /sys/fs/f2fs/<disk>/cp_interval Date: October 2015 Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> -Description: - Controls the checkpoint timing. +Description: Controls the checkpoint timing, set to 60 seconds by default. What: /sys/fs/f2fs/<disk>/idle_interval Date: January 2016 Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> -Description: - Controls the idle timing for all paths other than - discard and gc path. +Description: Controls the idle timing of system, if there is no FS operation + during given interval. + Set to 5 seconds by default. What: /sys/fs/f2fs/<disk>/discard_idle_interval Date: September 2018 Contact: "Chao Yu" <yuchao0@huawei.com> Contact: "Sahitya Tummala" <stummala@codeaurora.org> -Description: - Controls the idle timing for discard path. +Description: Controls the idle timing of discard thread given + this time interval. + Default is 5 secs. What: /sys/fs/f2fs/<disk>/gc_idle_interval Date: September 2018 Contact: "Chao Yu" <yuchao0@huawei.com> Contact: "Sahitya Tummala" <stummala@codeaurora.org> -Description: - Controls the idle timing for gc path. +Description: Controls the idle timing for gc path. Set to 5 seconds by default. What: /sys/fs/f2fs/<disk>/iostat_enable Date: August 2017 Contact: "Chao Yu" <yuchao0@huawei.com> -Description: - Controls to enable/disable IO stat. +Description: Controls to enable/disable IO stat. What: /sys/fs/f2fs/<disk>/ra_nid_pages Date: October 2015 Contact: "Chao Yu" <chao2.yu@samsung.com> -Description: - Controls the count of nid pages to be readaheaded. +Description: Controls the count of nid pages to be readaheaded. + When building free nids, F2FS reads NAT blocks ahead for + speed up. Default is 0. What: /sys/fs/f2fs/<disk>/dirty_nats_ratio Date: January 2016 Contact: "Chao Yu" <chao2.yu@samsung.com> -Description: - Controls dirty nat entries ratio threshold, if current - ratio exceeds configured threshold, checkpoint will - be triggered for flushing dirty nat entries. +Description: Controls dirty nat entries ratio threshold, if current + ratio exceeds configured threshold, checkpoint will + be triggered for flushing dirty nat entries. What: /sys/fs/f2fs/<disk>/lifetime_write_kbytes Date: January 2016 Contact: "Shuoran Liu" <liushuoran@huawei.com> -Description: - Shows total written kbytes issued to disk. +Description: Shows total written kbytes issued to disk. What: /sys/fs/f2fs/<disk>/features Date: July 2017 Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> -Description: - Shows all enabled features in current device. +Description: Shows all enabled features in current device. What: /sys/fs/f2fs/<disk>/inject_rate Date: May 2016 Contact: "Sheng Yong" <shengyong1@huawei.com> -Description: - Controls the injection rate. +Description: Controls the injection rate of arbitrary faults. What: /sys/fs/f2fs/<disk>/inject_type Date: May 2016 Contact: "Sheng Yong" <shengyong1@huawei.com> -Description: - Controls the injection type. +Description: Controls the injection type of arbitrary faults. + +What: /sys/fs/f2fs/<disk>/dirty_segments +Date: October 2017 +Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> +Description: Shows the number of dirty segments. What: /sys/fs/f2fs/<disk>/reserved_blocks Date: June 2017 Contact: "Chao Yu" <yuchao0@huawei.com> -Description: - Controls target reserved blocks in system, the threshold - is soft, it could exceed current available user space. +Description: Controls target reserved blocks in system, the threshold + is soft, it could exceed current available user space. What: /sys/fs/f2fs/<disk>/current_reserved_blocks Date: October 2017 Contact: "Yunlong Song" <yunlong.song@huawei.com> Contact: "Chao Yu" <yuchao0@huawei.com> -Description: - Shows current reserved blocks in system, it may be temporarily - smaller than target_reserved_blocks, but will gradually - increase to target_reserved_blocks when more free blocks are - freed by user later. +Description: Shows current reserved blocks in system, it may be temporarily + smaller than target_reserved_blocks, but will gradually + increase to target_reserved_blocks when more free blocks are + freed by user later. What: /sys/fs/f2fs/<disk>/gc_urgent Date: August 2017 Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> -Description: - Do background GC agressively +Description: Do background GC agressively when set. When gc_urgent = 1, + background thread starts to do GC by given gc_urgent_sleep_time + interval. It is set to 0 by default. What: /sys/fs/f2fs/<disk>/gc_urgent_sleep_time Date: August 2017 Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> -Description: - Controls sleep time of GC urgent mode +Description: Controls sleep time of GC urgent mode. Set to 500ms by default. What: /sys/fs/f2fs/<disk>/readdir_ra Date: November 2017 Contact: "Sheng Yong" <shengyong1@huawei.com> -Description: - Controls readahead inode block in readdir. +Description: Controls readahead inode block in readdir. Enabled by default. + +What: /sys/fs/f2fs/<disk>/gc_pin_file_thresh +Date: January 2018 +Contact: Jaegeuk Kim <jaegeuk@kernel.org> +Description: This indicates how many GC can be failed for the pinned + file. If it exceeds this, F2FS doesn't guarantee its pinning + state. 2048 trials is set by default. What: /sys/fs/f2fs/<disk>/extension_list Date: Feburary 2018 Contact: "Chao Yu" <yuchao0@huawei.com> -Description: - Used to control configure extension list: - - Query: cat /sys/fs/f2fs/<disk>/extension_list - - Add: echo '[h/c]extension' > /sys/fs/f2fs/<disk>/extension_list - - Del: echo '[h/c]!extension' > /sys/fs/f2fs/<disk>/extension_list - - [h] means add/del hot file extension - - [c] means add/del cold file extension +Description: Used to control configure extension list: + - Query: cat /sys/fs/f2fs/<disk>/extension_list + - Add: echo '[h/c]extension' > /sys/fs/f2fs/<disk>/extension_list + - Del: echo '[h/c]!extension' > /sys/fs/f2fs/<disk>/extension_list + - [h] means add/del hot file extension + - [c] means add/del cold file extension What: /sys/fs/f2fs/<disk>/unusable Date April 2019 Contact: "Daniel Rosenberg" <drosen@google.com> -Description: - If checkpoint=disable, it displays the number of blocks that are unusable. - If checkpoint=enable it displays the enumber of blocks that would be unusable - if checkpoint=disable were to be set. +Description: If checkpoint=disable, it displays the number of blocks that + are unusable. + If checkpoint=enable it displays the enumber of blocks that + would be unusable if checkpoint=disable were to be set. What: /sys/fs/f2fs/<disk>/encoding Date July 2019 Contact: "Daniel Rosenberg" <drosen@google.com> -Description: - Displays name and version of the encoding set for the filesystem. - If no encoding is set, displays (none) +Description: Displays name and version of the encoding set for the filesystem. + If no encoding is set, displays (none) + +What: /sys/fs/f2fs/<disk>/free_segments +Date: September 2019 +Contact: "Hridya Valsaraju" <hridya@google.com> +Description: Number of free segments in disk. + +What: /sys/fs/f2fs/<disk>/cp_foreground_calls +Date: September 2019 +Contact: "Hridya Valsaraju" <hridya@google.com> +Description: Number of checkpoint operations performed on demand. Available when + CONFIG_F2FS_STAT_FS=y. + +What: /sys/fs/f2fs/<disk>/cp_background_calls +Date: September 2019 +Contact: "Hridya Valsaraju" <hridya@google.com> +Description: Number of checkpoint operations performed in the background to + free segments. Available when CONFIG_F2FS_STAT_FS=y. + +What: /sys/fs/f2fs/<disk>/gc_foreground_calls +Date: September 2019 +Contact: "Hridya Valsaraju" <hridya@google.com> +Description: Number of garbage collection operations performed on demand. + Available when CONFIG_F2FS_STAT_FS=y. + +What: /sys/fs/f2fs/<disk>/gc_background_calls +Date: September 2019 +Contact: "Hridya Valsaraju" <hridya@google.com> +Description: Number of garbage collection operations triggered in background. + Available when CONFIG_F2FS_STAT_FS=y. + +What: /sys/fs/f2fs/<disk>/moved_blocks_foreground +Date: September 2019 +Contact: "Hridya Valsaraju" <hridya@google.com> +Description: Number of blocks moved by garbage collection in foreground. + Available when CONFIG_F2FS_STAT_FS=y. + +What: /sys/fs/f2fs/<disk>/moved_blocks_background +Date: September 2019 +Contact: "Hridya Valsaraju" <hridya@google.com> +Description: Number of blocks moved by garbage collection in background. + Available when CONFIG_F2FS_STAT_FS=y. + +What: /sys/fs/f2fs/<disk>/avg_vblocks +Date: September 2019 +Contact: "Hridya Valsaraju" <hridya@google.com> +Description: Average number of valid blocks. + Available when CONFIG_F2FS_STAT_FS=y. diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi index 9e99f2909612..1efac0ddb417 100644 --- a/Documentation/ABI/testing/sysfs-platform-asus-wmi +++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi @@ -46,3 +46,13 @@ Description: * 0 - normal, * 1 - overboost, * 2 - silent + +What: /sys/devices/platform/<platform>/throttle_thermal_policy +Date: Dec 2019 +KernelVersion: 5.6 +Contact: "Leonid Maksymchuk" <leonmaxx@gmail.com> +Description: + Throttle thermal policy mode: + * 0 - default, + * 1 - overboost, + * 2 - silent diff --git a/Documentation/ABI/testing/sysfs-power b/Documentation/ABI/testing/sysfs-power index 6f87b9dd384b..5e6ead29124c 100644 --- a/Documentation/ABI/testing/sysfs-power +++ b/Documentation/ABI/testing/sysfs-power @@ -407,3 +407,16 @@ Contact: Kalesh Singh <kaleshsingh96@gmail.com> Description: The /sys/power/suspend_stats/last_failed_step file contains the last failed step in the suspend/resume path. + +What: /sys/power/sync_on_suspend +Date: October 2019 +Contact: Jonas Meurer <jonas@freesources.org> +Description: + This file controls whether or not the kernel will sync() + filesystems during system suspend (after freezing user space + and before suspending devices). + + Writing a "1" to this file enables the sync() and writing a "0" + disables it. Reads from the file return the current value. + The default is "1" if the build-time "SUSPEND_SKIP_SYNC" config + flag is unset, or "0" otherwise. diff --git a/Documentation/ABI/testing/usb-charger-uevent b/Documentation/ABI/testing/usb-charger-uevent new file mode 100644 index 000000000000..419a92dd0d86 --- /dev/null +++ b/Documentation/ABI/testing/usb-charger-uevent @@ -0,0 +1,46 @@ +What: Raise a uevent when a USB charger is inserted or removed +Date: 2020-01-14 +KernelVersion: 5.6 +Contact: linux-usb@vger.kernel.org +Description: There are two USB charger states: + USB_CHARGER_ABSENT + USB_CHARGER_PRESENT + There are five USB charger types: + USB_CHARGER_UNKNOWN_TYPE: Charger type is unknown + USB_CHARGER_SDP_TYPE: Standard Downstream Port + USB_CHARGER_CDP_TYPE: Charging Downstream Port + USB_CHARGER_DCP_TYPE: Dedicated Charging Port + USB_CHARGER_ACA_TYPE: Accessory Charging Adapter + https://www.usb.org/document-library/battery-charging-v12-spec-and-adopters-agreement + + Here are two examples taken using udevadm monitor -p when + USB charger is online: + UDEV change /devices/soc0/usbphynop1 (platform) + ACTION=change + DEVPATH=/devices/soc0/usbphynop1 + DRIVER=usb_phy_generic + MODALIAS=of:Nusbphynop1T(null)Cusb-nop-xceiv + OF_COMPATIBLE_0=usb-nop-xceiv + OF_COMPATIBLE_N=1 + OF_FULLNAME=/usbphynop1 + OF_NAME=usbphynop1 + SEQNUM=2493 + SUBSYSTEM=platform + USB_CHARGER_STATE=USB_CHARGER_PRESENT + USB_CHARGER_TYPE=USB_CHARGER_SDP_TYPE + USEC_INITIALIZED=227422826 + + USB charger is offline: + KERNEL change /devices/soc0/usbphynop1 (platform) + ACTION=change + DEVPATH=/devices/soc0/usbphynop1 + DRIVER=usb_phy_generic + MODALIAS=of:Nusbphynop1T(null)Cusb-nop-xceiv + OF_COMPATIBLE_0=usb-nop-xceiv + OF_COMPATIBLE_N=1 + OF_FULLNAME=/usbphynop1 + OF_NAME=usbphynop1 + SEQNUM=2494 + SUBSYSTEM=platform + USB_CHARGER_STATE=USB_CHARGER_ABSENT + USB_CHARGER_TYPE=USB_CHARGER_UNKNOWN_TYPE |