diff options
Diffstat (limited to 'Documentation/ABI')
54 files changed, 2155 insertions, 314 deletions
diff --git a/Documentation/ABI/obsolete/procfs-i8k b/Documentation/ABI/obsolete/procfs-i8k new file mode 100644 index 000000000000..32df4d5bdd15 --- /dev/null +++ b/Documentation/ABI/obsolete/procfs-i8k @@ -0,0 +1,10 @@ +What: /proc/i8k +Date: November 2001 +KernelVersion: 2.4.14 +Contact: Pali Rohár <pali@kernel.org> +Description: Legacy interface for getting/setting sensor information like + fan speed, temperature, serial number, hotkey status etc + on Dell Laptops. + Since the driver is now using the standard hwmon sysfs interface, + the procfs interface is deprecated. +Users: https://github.com/vitorafsr/i8kutils diff --git a/Documentation/ABI/removed/sysfs-mce b/Documentation/ABI/removed/sysfs-mce new file mode 100644 index 000000000000..ef5dd2a80918 --- /dev/null +++ b/Documentation/ABI/removed/sysfs-mce @@ -0,0 +1,37 @@ +What: /sys/devices/system/machinecheck/machinecheckX/tolerant +Contact: Borislav Petkov <bp@suse.de> +Date: Dec, 2021 +Description: + Unused and obsolete after the advent of recoverable machine + checks (see last sentence below) and those are present since + 2010 (Nehalem). + + Original description: + + The entries appear for each CPU, but they are truly shared + between all CPUs. + + Tolerance level. When a machine check exception occurs for a + non corrected machine check the kernel can take different + actions. + + Since machine check exceptions can happen any time it is + sometimes risky for the kernel to kill a process because it + defies normal kernel locking rules. The tolerance level + configures how hard the kernel tries to recover even at some + risk of deadlock. Higher tolerant values trade potentially + better uptime with the risk of a crash or even corruption + (for tolerant >= 3). + + == =========================================================== + 0 always panic on uncorrected errors, log corrected errors + 1 panic or SIGBUS on uncorrected errors, log corrected errors + 2 SIGBUS or log uncorrected errors, log corrected errors + 3 never panic or SIGBUS, log all errors (for testing only) + == =========================================================== + + Default: 1 + + Note this only makes a difference if the CPU allows recovery + from a machine check exception. Current x86 CPUs generally + do not. diff --git a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stable/sysfs-block index 8dd3e84a8aad..e8797cd09aff 100644 --- a/Documentation/ABI/stable/sysfs-block +++ b/Documentation/ABI/stable/sysfs-block @@ -155,6 +155,55 @@ Description: last zone of the device which may be smaller. +What: /sys/block/<disk>/queue/crypto/ +Date: February 2022 +Contact: linux-block@vger.kernel.org +Description: + The presence of this subdirectory of /sys/block/<disk>/queue/ + indicates that the device supports inline encryption. This + subdirectory contains files which describe the inline encryption + capabilities of the device. For more information about inline + encryption, refer to Documentation/block/inline-encryption.rst. + + +What: /sys/block/<disk>/queue/crypto/max_dun_bits +Date: February 2022 +Contact: linux-block@vger.kernel.org +Description: + [RO] This file shows the maximum length, in bits, of data unit + numbers accepted by the device in inline encryption requests. + + +What: /sys/block/<disk>/queue/crypto/modes/<mode> +Date: February 2022 +Contact: linux-block@vger.kernel.org +Description: + [RO] For each crypto mode (i.e., encryption/decryption + algorithm) the device supports with inline encryption, a file + will exist at this location. It will contain a hexadecimal + number that is a bitmask of the supported data unit sizes, in + bytes, for that crypto mode. + + Currently, the crypto modes that may be supported are: + + * AES-256-XTS + * AES-128-CBC-ESSIV + * Adiantum + + For example, if a device supports AES-256-XTS inline encryption + with data unit sizes of 512 and 4096 bytes, the file + /sys/block/<disk>/queue/crypto/modes/AES-256-XTS will exist and + will contain "0x1200". + + +What: /sys/block/<disk>/queue/crypto/num_keyslots +Date: February 2022 +Contact: linux-block@vger.kernel.org +Description: + [RO] This file shows the number of keyslots the device has for + use with inline encryption. + + What: /sys/block/<disk>/queue/dax Date: June 2016 Contact: linux-block@vger.kernel.org diff --git a/Documentation/ABI/stable/sysfs-bus-mhi b/Documentation/ABI/stable/sysfs-bus-mhi index ecfe7662f8d0..96ccc3385a2b 100644 --- a/Documentation/ABI/stable/sysfs-bus-mhi +++ b/Documentation/ABI/stable/sysfs-bus-mhi @@ -19,3 +19,13 @@ Description: The file holds the OEM PK Hash value of the endpoint device read without having the device power on at least once, the file will read all 0's. Users: Any userspace application or clients interested in device info. + +What: /sys/bus/mhi/devices/.../soc_reset +Date: April 2022 +KernelVersion: 5.19 +Contact: mhi@lists.linux.dev +Description: Initiates a SoC reset on the MHI controller. A SoC reset is + a reset of last resort, and will require a complete re-init. + This can be useful as a method of recovery if the device is + non-responsive, or as a means of loading new firmware as a + system administration task. diff --git a/Documentation/ABI/stable/sysfs-devices-system-cpu b/Documentation/ABI/stable/sysfs-devices-system-cpu index 3965ce504484..902392d7eddf 100644 --- a/Documentation/ABI/stable/sysfs-devices-system-cpu +++ b/Documentation/ABI/stable/sysfs-devices-system-cpu @@ -86,6 +86,10 @@ What: /sys/devices/system/cpu/cpuX/topology/die_cpus Description: internal kernel map of CPUs within the same die. Values: hexadecimal bitmask. +What: /sys/devices/system/cpu/cpuX/topology/ppin +Description: per-socket protected processor inventory number +Values: hexadecimal. + What: /sys/devices/system/cpu/cpuX/topology/die_cpus_list Description: human-readable list of CPUs within the same die. The format is like 0-3, 8-11, 14,17. diff --git a/Documentation/ABI/stable/sysfs-driver-firmware-zynqmp b/Documentation/ABI/stable/sysfs-driver-firmware-zynqmp index f5724bb5b462..c3fec3c835af 100644 --- a/Documentation/ABI/stable/sysfs-driver-firmware-zynqmp +++ b/Documentation/ABI/stable/sysfs-driver-firmware-zynqmp @@ -113,3 +113,144 @@ Description: # echo 0 > /sys/devices/platform/firmware\:zynqmp-firmware/health_status Users: Xilinx + +What: /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_id +Date: Feb 2022 +KernelVersion: 5.18 +Contact: "Ronak Jain" <ronak.jain@xilinx.com> +Description: + This sysfs interface allows user to configure features at + runtime. The user can enable or disable features running at + firmware as well as the user can configure the parameters of + the features at runtime. The supported features are over + temperature and external watchdog. Here, the external watchdog + is completely different than the /dev/watchdog as the external + watchdog is running on the firmware and it is used to monitor + the health of firmware not APU(Linux). Also, the external + watchdog is interfaced outside of the zynqmp soc. + + The supported config ids are for the feature configuration is, + 1. PM_FEATURE_OVERTEMP_STATUS = 1, the user can enable or + disable the over temperature feature. + 2. PM_FEATURE_OVERTEMP_VALUE = 2, the user can configure the + over temperature limit in Degree Celsius. + 3. PM_FEATURE_EXTWDT_STATUS = 3, the user can enable or disable + the external watchdog feature. + 4. PM_FEATURE_EXTWDT_VALUE = 4, the user can configure the + external watchdog feature. + + Usage: + + Select over temperature config ID to enable/disable feature + # echo 1 > /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_id + + Check over temperature config ID is selected or not + # cat /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_id + The expected result is 1. + + Select over temperature config ID to configure OT limit + # echo 2 > /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_id + + Check over temperature config ID is selected or not + # cat /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_id + The expected result is 2. + + Select external watchdog config ID to enable/disable feature + # echo 3 > /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_id + + Check external watchdog config ID is selected or not + # cat /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_id + The expected result is 3. + + Select external watchdog config ID to configure time interval + # echo 4 > /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_id + + Check external watchdog config ID is selected or not + # cat /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_id + The expected result is 4. + +Users: Xilinx + +What: /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_value +Date: Feb 2022 +KernelVersion: 5.18 +Contact: "Ronak Jain" <ronak.jain@xilinx.com> +Description: + This sysfs interface allows to configure features at runtime. + The user can enable or disable features running at firmware. + Also, the user can configure the parameters of the features + at runtime. The supported features are over temperature and + external watchdog. Here, the external watchdog is completely + different than the /dev/watchdog as the external watchdog is + running on the firmware and it is used to monitor the health + of firmware not APU(Linux). Also, the external watchdog is + interfaced outside of the zynqmp soc. + + By default the features are disabled in the firmware. The user + can enable features by querying appropriate config id of the + features. + + The default limit for the over temperature is 90 Degree Celsius. + The default timer interval for the external watchdog is 570ms. + + The supported config ids are for the feature configuration is, + 1. PM_FEATURE_OVERTEMP_STATUS = 1, the user can enable or + disable the over temperature feature. + 2. PM_FEATURE_OVERTEMP_VALUE = 2, the user can configure the + over temperature limit in Degree Celsius. + 3. PM_FEATURE_EXTWDT_STATUS = 3, the user can enable or disable + the external watchdog feature. + 4. PM_FEATURE_EXTWDT_VALUE = 4, the user can configure the + external watchdog feature. + + Usage: + + Enable over temperature feature + # echo 1 > /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_id + # echo 1 > /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_value + + Check whether the over temperature feature is enabled or not + # cat /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_value + The expected result is 1. + + Disable over temperature feature + # echo 1 > /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_id + # echo 0 > /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_value + + Check whether the over temperature feature is disabled or not + # cat /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_value + The expected result is 0. + + Configure over temperature limit to 50 Degree Celsius + # echo 2 > /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_id + # echo 50 > /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_value + + Check whether the over temperature limit is configured or not + # cat /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_value + The expected result is 50. + + Enable external watchdog feature + # echo 3 > /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_id + # echo 1 > /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_value + + Check whether the external watchdog feature is enabled or not + # cat /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_value + The expected result is 1. + + Disable external watchdog feature + # echo 3 > /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_id + # echo 0 > /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_value + + Check whether the external watchdog feature is disabled or not + # cat /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_value + The expected result is 0. + + Configure external watchdog timer interval to 500ms + # echo 4 > /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_id + # echo 500 > /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_value + + Check whether the external watchdog timer interval is configured or not + # cat /sys/devices/platform/firmware\:zynqmp-firmware/feature_config_value + The expected result is 500. + +Users: Xilinx diff --git a/Documentation/ABI/stable/sysfs-driver-mlxreg-io b/Documentation/ABI/stable/sysfs-driver-mlxreg-io index 12c3f895cd2f..b312242d4f40 100644 --- a/Documentation/ABI/stable/sysfs-driver-mlxreg-io +++ b/Documentation/ABI/stable/sysfs-driver-mlxreg-io @@ -467,3 +467,39 @@ Description: These files provide the maximum powered required for line card feeding and line card configuration Id. The files are read only. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/phy_reset +Date: May 2022 +KernelVersion: 5.19 +Contact: Vadim Pasternak <vadimpmellanox.com> +Description: This file allows to reset PHY 88E1548 when attribute is set 0 + due to some abnormal PHY behavior. + Expected behavior: + When phy_reset is written 1, all PHY 88E1548 are released + from the reset state, when 0 - are hold in reset state. + + The files are read/write. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/mac_reset +Date: May 2022 +KernelVersion: 5.19 +Contact: Vadim Pasternak <vadimpmellanox.com> +Description: This file allows to reset ASIC MT52132 when attribute is set 0 + due to some abnormal ASIC behavior. + Expected behavior: + When mac_reset is written 1, the ASIC MT52132 is released + from the reset state, when 0 - is hold in reset state. + + The files are read/write. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/qsfp_pwr_good +Date: May 2022 +KernelVersion: 5.19 +Contact: Vadim Pasternak <vadimpmellanox.com> +Description: This file shows QSFP ports power status. The value is set to 0 + when one of any QSFP ports is plugged. The value is set to 1 when + there are no any QSFP ports are plugged. + The possible values are: + 0 - Power good, 1 - Not power good. + + The files are read only. diff --git a/Documentation/ABI/testing/configfs-usb-gadget-uac1 b/Documentation/ABI/testing/configfs-usb-gadget-uac1 index d4b8cf40a9e4..c4ba92f004c3 100644 --- a/Documentation/ABI/testing/configfs-usb-gadget-uac1 +++ b/Documentation/ABI/testing/configfs-usb-gadget-uac1 @@ -6,7 +6,7 @@ Description: ===================== ======================================= c_chmask capture channel mask - c_srate capture sampling rate + c_srate list of capture sampling rates (comma-separated) c_ssize capture sample size (bytes) c_mute_present capture mute control enable c_volume_present capture volume control enable @@ -17,7 +17,7 @@ Description: c_volume_res capture volume control resolution (in 1/256 dB) p_chmask playback channel mask - p_srate playback sampling rate + p_srate list of playback sampling rates (comma-separated) p_ssize playback sample size (bytes) p_mute_present playback mute control enable p_volume_present playback volume control enable @@ -29,4 +29,5 @@ Description: (in 1/256 dB) req_number the number of pre-allocated requests for both capture and playback + function_name name of the interface ===================== ======================================= diff --git a/Documentation/ABI/testing/configfs-usb-gadget-uac2 b/Documentation/ABI/testing/configfs-usb-gadget-uac2 index 7fb3dbe26857..3371c39f651d 100644 --- a/Documentation/ABI/testing/configfs-usb-gadget-uac2 +++ b/Documentation/ABI/testing/configfs-usb-gadget-uac2 @@ -6,8 +6,9 @@ Description: ===================== ======================================= c_chmask capture channel mask - c_srate capture sampling rate + c_srate list of capture sampling rates (comma-separated) c_ssize capture sample size (bytes) + c_hs_bint capture bInterval for HS/SS (1-4: fixed, 0: auto) c_sync capture synchronization type (async/adaptive) c_mute_present capture mute control enable @@ -20,8 +21,9 @@ Description: (in 1/256 dB) fb_max maximum extra bandwidth in async mode p_chmask playback channel mask - p_srate playback sampling rate + p_srate list of playback sampling rates (comma-separated) p_ssize playback sample size (bytes) + p_hs_bint playback bInterval for HS/SS (1-4: fixed, 0: auto) p_mute_present playback mute control enable p_volume_present playback volume control enable p_volume_min playback volume control min value @@ -32,4 +34,5 @@ Description: (in 1/256 dB) req_number the number of pre-allocated requests for both capture and playback + function_name name of the interface ===================== ======================================= diff --git a/Documentation/ABI/testing/configfs-usb-gadget-uvc b/Documentation/ABI/testing/configfs-usb-gadget-uvc index 889ed45be4ca..611b23e6488d 100644 --- a/Documentation/ABI/testing/configfs-usb-gadget-uvc +++ b/Documentation/ABI/testing/configfs-usb-gadget-uvc @@ -7,6 +7,7 @@ Description: UVC function directory streaming_maxburst 0..15 (ss only) streaming_maxpacket 1..1023 (fs), 1..3072 (hs/ss) streaming_interval 1..16 + function_name string [32] =================== ============================= What: /config/usb-gadget/gadget/functions/uvc.name/control diff --git a/Documentation/ABI/testing/debugfs-driver-habanalabs b/Documentation/ABI/testing/debugfs-driver-habanalabs index 2667cbf940f3..0f8d20fe343f 100644 --- a/Documentation/ABI/testing/debugfs-driver-habanalabs +++ b/Documentation/ABI/testing/debugfs-driver-habanalabs @@ -12,24 +12,7 @@ What: /sys/kernel/debug/habanalabs/hl<n>/clk_gate Date: May 2020 KernelVersion: 5.8 Contact: ogabbay@kernel.org -Description: Allow the root user to disable/enable in runtime the clock - gating mechanism in Gaudi. Due to how Gaudi is built, the - clock gating needs to be disabled in order to access the - registers of the TPC and MME engines. This is sometimes needed - during debug by the user and hence the user needs this option. - The user can supply a bitmask value, each bit represents - a different engine to disable/enable its clock gating feature. - The bitmask is composed of 20 bits: - - ======= ============ - 0 - 7 DMA channels - 8 - 11 MME engines - 12 - 19 TPC engines - ======= ============ - - The bit's location of a specific engine can be determined - using (1 << GAUDI_ENGINE_ID_*). GAUDI_ENGINE_ID_* values - are defined in uapi habanalabs.h file in enum gaudi_engine_id +Description: This setting is now deprecated as clock gating is handled solely by the f/w What: /sys/kernel/debug/habanalabs/hl<n>/command_buffers Date: Jan 2019 @@ -187,6 +170,20 @@ KernelVersion: 5.1 Contact: ogabbay@kernel.org Description: Sets the state of the third S/W led on the device +What: /sys/kernel/debug/habanalabs/hl<n>/memory_scrub +Date: May 2022 +KernelVersion: 5.19 +Contact: dhirschfeld@habana.ai +Description: Allows the root user to scrub the dram memory. The scrubbing + value can be set using the debugfs file memory_scrub_val. + +What: /sys/kernel/debug/habanalabs/hl<n>/memory_scrub_val +Date: May 2022 +KernelVersion: 5.19 +Contact: dhirschfeld@habana.ai +Description: The value to which the dram will be set to when the user + scrubs the dram using 'memory_scrub' debugfs file + What: /sys/kernel/debug/habanalabs/hl<n>/mmu Date: Jan 2019 KernelVersion: 5.1 @@ -207,6 +204,30 @@ Description: Check and display page fault or access violation mmu errors for echo "0x200" > /sys/kernel/debug/habanalabs/hl0/mmu_error cat /sys/kernel/debug/habanalabs/hl0/mmu_error +What: /sys/kernel/debug/habanalabs/hl<n>/monitor_dump +Date: Mar 2022 +KernelVersion: 5.19 +Contact: osharabi@habana.ai +Description: Allows the root user to dump monitors status from the device's + protected config space. + This property is a binary blob that contains the result of the + monitors registers dump. + This custom interface is needed (instead of using the generic + Linux user-space PCI mapping) because this space is protected + and cannot be accessed using PCI read. + This interface doesn't support concurrency in the same device. + Only supported on GAUDI. + +What: /sys/kernel/debug/habanalabs/hl<n>/monitor_dump_trig +Date: Mar 2022 +KernelVersion: 5.19 +Contact: osharabi@habana.ai +Description: Triggers dump of monitor data. The value to trigger the operation + must be 1. Triggering the monitor dump operation initiates dump of + current registers values of all monitors. + When the write is finished, the user can read the "monitor_dump" + blob + What: /sys/kernel/debug/habanalabs/hl<n>/set_power_state Date: Jan 2019 KernelVersion: 5.1 @@ -239,6 +260,7 @@ KernelVersion: 5.6 Contact: ogabbay@kernel.org Description: Sets the stop-on_error option for the device engines. Value of "0" is for disable, otherwise enable. + Relevant only for GOYA and GAUDI. What: /sys/kernel/debug/habanalabs/hl<n>/timeout_locked Date: Sep 2021 diff --git a/Documentation/ABI/testing/debugfs-hisi-hpre b/Documentation/ABI/testing/debugfs-hisi-hpre index b4be5f1db4b7..82abf92df429 100644 --- a/Documentation/ABI/testing/debugfs-hisi-hpre +++ b/Documentation/ABI/testing/debugfs-hisi-hpre @@ -1,140 +1,164 @@ -What: /sys/kernel/debug/hisi_hpre/<bdf>/cluster[0-3]/regs -Date: Sep 2019 -Contact: linux-crypto@vger.kernel.org -Description: Dump debug registers from the HPRE cluster. +What: /sys/kernel/debug/hisi_hpre/<bdf>/cluster[0-3]/regs +Date: Sep 2019 +Contact: linux-crypto@vger.kernel.org +Description: Dump debug registers from the HPRE cluster. Only available for PF. -What: /sys/kernel/debug/hisi_hpre/<bdf>/cluster[0-3]/cluster_ctrl -Date: Sep 2019 -Contact: linux-crypto@vger.kernel.org -Description: Write the HPRE core selection in the cluster into this file, +What: /sys/kernel/debug/hisi_hpre/<bdf>/cluster[0-3]/cluster_ctrl +Date: Sep 2019 +Contact: linux-crypto@vger.kernel.org +Description: Write the HPRE core selection in the cluster into this file, and then we can read the debug information of the core. Only available for PF. -What: /sys/kernel/debug/hisi_hpre/<bdf>/rdclr_en -Date: Sep 2019 -Contact: linux-crypto@vger.kernel.org -Description: HPRE cores debug registers read clear control. 1 means enable +What: /sys/kernel/debug/hisi_hpre/<bdf>/rdclr_en +Date: Sep 2019 +Contact: linux-crypto@vger.kernel.org +Description: HPRE cores debug registers read clear control. 1 means enable register read clear, otherwise 0. Writing to this file has no functional effect, only enable or disable counters clear after reading of these registers. Only available for PF. -What: /sys/kernel/debug/hisi_hpre/<bdf>/current_qm -Date: Sep 2019 -Contact: linux-crypto@vger.kernel.org -Description: One HPRE controller has one PF and multiple VFs, each function +What: /sys/kernel/debug/hisi_hpre/<bdf>/current_qm +Date: Sep 2019 +Contact: linux-crypto@vger.kernel.org +Description: One HPRE controller has one PF and multiple VFs, each function has a QM. Select the QM which below qm refers to. Only available for PF. -What: /sys/kernel/debug/hisi_hpre/<bdf>/regs -Date: Sep 2019 -Contact: linux-crypto@vger.kernel.org -Description: Dump debug registers from the HPRE. +What: /sys/kernel/debug/hisi_hpre/<bdf>/alg_qos +Date: Jun 2021 +Contact: linux-crypto@vger.kernel.org +Description: The <bdf> is related the function for PF and VF. + HPRE driver supports to configure each function's QoS, the driver + supports to write <bdf> value to alg_qos in the host. Such as + "echo <bdf> value > alg_qos". The qos value is 1~1000, means + 1/1000~1000/1000 of total QoS. The driver reading alg_qos to + get related QoS in the host and VM, Such as "cat alg_qos". + +What: /sys/kernel/debug/hisi_hpre/<bdf>/regs +Date: Sep 2019 +Contact: linux-crypto@vger.kernel.org +Description: Dump debug registers from the HPRE. Only available for PF. -What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/regs -Date: Sep 2019 -Contact: linux-crypto@vger.kernel.org -Description: Dump debug registers from the QM. +What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/regs +Date: Sep 2019 +Contact: linux-crypto@vger.kernel.org +Description: Dump debug registers from the QM. Available for PF and VF in host. VF in guest currently only has one debug register. -What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/current_q -Date: Sep 2019 -Contact: linux-crypto@vger.kernel.org -Description: One QM may contain multiple queues. Select specific queue to +What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/current_q +Date: Sep 2019 +Contact: linux-crypto@vger.kernel.org +Description: One QM may contain multiple queues. Select specific queue to show its debug registers in above regs. Only available for PF. -What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/clear_enable -Date: Sep 2019 -Contact: linux-crypto@vger.kernel.org -Description: QM debug registers(regs) read clear control. 1 means enable +What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/clear_enable +Date: Sep 2019 +Contact: linux-crypto@vger.kernel.org +Description: QM debug registers(regs) read clear control. 1 means enable register read clear, otherwise 0. Writing to this file has no functional effect, only enable or disable counters clear after reading of these registers. Only available for PF. -What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/err_irq -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the number of invalid interrupts for +What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/err_irq +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the number of invalid interrupts for QM task completion. Available for both PF and VF, and take no other effect on HPRE. -What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/aeq_irq -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the number of QM async event queue interrupts. +What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/aeq_irq +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the number of QM async event queue interrupts. Available for both PF and VF, and take no other effect on HPRE. -What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/abnormal_irq -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the number of interrupts for QM abnormal event. +What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/abnormal_irq +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the number of interrupts for QM abnormal event. Available for both PF and VF, and take no other effect on HPRE. -What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/create_qp_err -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the number of queue allocation errors. +What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/create_qp_err +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the number of queue allocation errors. Available for both PF and VF, and take no other effect on HPRE. -What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/mb_err -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the number of failed QM mailbox commands. +What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/mb_err +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the number of failed QM mailbox commands. Available for both PF and VF, and take no other effect on HPRE. -What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/status -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the status of the QM. +What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/status +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the status of the QM. Four states: initiated, started, stopped and closed. Available for both PF and VF, and take no other effect on HPRE. -What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/send_cnt -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the total number of sent requests. +What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/diff_regs +Date: Mar 2022 +Contact: linux-crypto@vger.kernel.org +Description: QM debug registers(regs) read hardware register value. This + node is used to show the change of the qm register values. This + node can be help users to check the change of register values. + +What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/diff_regs +Date: Mar 2022 +Contact: linux-crypto@vger.kernel.org +Description: HPRE debug registers(regs) read hardware register value. This + node is used to show the change of the register values. This + node can be help users to check the change of register values. + +What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/send_cnt +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the total number of sent requests. Available for both PF and VF, and take no other effect on HPRE. -What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/recv_cnt -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the total number of received requests. +What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/recv_cnt +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the total number of received requests. Available for both PF and VF, and take no other effect on HPRE. -What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/send_busy_cnt -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the total number of requests sent +What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/send_busy_cnt +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the total number of requests sent with returning busy. Available for both PF and VF, and take no other effect on HPRE. -What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/send_fail_cnt -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the total number of completed but error requests. +What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/send_fail_cnt +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the total number of completed but error requests. Available for both PF and VF, and take no other effect on HPRE. -What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/invalid_req_cnt -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the total number of invalid requests being received. +What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/invalid_req_cnt +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the total number of invalid requests being received. Available for both PF and VF, and take no other effect on HPRE. -What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/overtime_thrhld -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Set the threshold time for counting the request which is +What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/overtime_thrhld +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Set the threshold time for counting the request which is processed longer than the threshold. 0: disable(default), 1: 1 microsecond. Available for both PF and VF, and take no other effect on HPRE. -What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/over_thrhld_cnt -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the total number of time out requests. +What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/over_thrhld_cnt +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the total number of time out requests. Available for both PF and VF, and take no other effect on HPRE. diff --git a/Documentation/ABI/testing/debugfs-hisi-sec b/Documentation/ABI/testing/debugfs-hisi-sec index 85feb4408e0f..93c530d1bf0f 100644 --- a/Documentation/ABI/testing/debugfs-hisi-sec +++ b/Documentation/ABI/testing/debugfs-hisi-sec @@ -1,113 +1,137 @@ -What: /sys/kernel/debug/hisi_sec2/<bdf>/clear_enable -Date: Oct 2019 -Contact: linux-crypto@vger.kernel.org -Description: Enabling/disabling of clear action after reading +What: /sys/kernel/debug/hisi_sec2/<bdf>/clear_enable +Date: Oct 2019 +Contact: linux-crypto@vger.kernel.org +Description: Enabling/disabling of clear action after reading the SEC debug registers. 0: disable, 1: enable. Only available for PF, and take no other effect on SEC. -What: /sys/kernel/debug/hisi_sec2/<bdf>/current_qm -Date: Oct 2019 -Contact: linux-crypto@vger.kernel.org -Description: One SEC controller has one PF and multiple VFs, each function +What: /sys/kernel/debug/hisi_sec2/<bdf>/current_qm +Date: Oct 2019 +Contact: linux-crypto@vger.kernel.org +Description: One SEC controller has one PF and multiple VFs, each function has a QM. This file can be used to select the QM which below qm refers to. Only available for PF. -What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/qm_regs -Date: Oct 2019 -Contact: linux-crypto@vger.kernel.org -Description: Dump of QM related debug registers. +What: /sys/kernel/debug/hisi_sec2/<bdf>/alg_qos +Date: Jun 2021 +Contact: linux-crypto@vger.kernel.org +Description: The <bdf> is related the function for PF and VF. + SEC driver supports to configure each function's QoS, the driver + supports to write <bdf> value to alg_qos in the host. Such as + "echo <bdf> value > alg_qos". The qos value is 1~1000, means + 1/1000~1000/1000 of total QoS. The driver reading alg_qos to + get related QoS in the host and VM, Such as "cat alg_qos". + +What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/qm_regs +Date: Oct 2019 +Contact: linux-crypto@vger.kernel.org +Description: Dump of QM related debug registers. Available for PF and VF in host. VF in guest currently only has one debug register. -What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/current_q -Date: Oct 2019 -Contact: linux-crypto@vger.kernel.org -Description: One QM of SEC may contain multiple queues. Select specific +What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/current_q +Date: Oct 2019 +Contact: linux-crypto@vger.kernel.org +Description: One QM of SEC may contain multiple queues. Select specific queue to show its debug registers in above 'regs'. Only available for PF. -What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/clear_enable -Date: Oct 2019 -Contact: linux-crypto@vger.kernel.org -Description: Enabling/disabling of clear action after reading +What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/clear_enable +Date: Oct 2019 +Contact: linux-crypto@vger.kernel.org +Description: Enabling/disabling of clear action after reading the SEC's QM debug registers. 0: disable, 1: enable. Only available for PF, and take no other effect on SEC. -What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/err_irq -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the number of invalid interrupts for +What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/err_irq +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the number of invalid interrupts for QM task completion. Available for both PF and VF, and take no other effect on SEC. -What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/aeq_irq -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the number of QM async event queue interrupts. +What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/aeq_irq +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the number of QM async event queue interrupts. Available for both PF and VF, and take no other effect on SEC. -What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/abnormal_irq -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the number of interrupts for QM abnormal event. +What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/abnormal_irq +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the number of interrupts for QM abnormal event. Available for both PF and VF, and take no other effect on SEC. -What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/create_qp_err -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the number of queue allocation errors. +What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/create_qp_err +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the number of queue allocation errors. Available for both PF and VF, and take no other effect on SEC. -What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/mb_err -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the number of failed QM mailbox commands. +What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/mb_err +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the number of failed QM mailbox commands. Available for both PF and VF, and take no other effect on SEC. -What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/status -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the status of the QM. +What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/status +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the status of the QM. Four states: initiated, started, stopped and closed. Available for both PF and VF, and take no other effect on SEC. -What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/send_cnt -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the total number of sent requests. +What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/diff_regs +Date: Mar 2022 +Contact: linux-crypto@vger.kernel.org +Description: QM debug registers(regs) read hardware register value. This + node is used to show the change of the qm register values. This + node can be help users to check the change of register values. + +What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/diff_regs +Date: Mar 2022 +Contact: linux-crypto@vger.kernel.org +Description: SEC debug registers(regs) read hardware register value. This + node is used to show the change of the register values. This + node can be help users to check the change of register values. + +What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/send_cnt +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the total number of sent requests. Available for both PF and VF, and take no other effect on SEC. -What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/recv_cnt -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the total number of received requests. +What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/recv_cnt +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the total number of received requests. Available for both PF and VF, and take no other effect on SEC. -What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/send_busy_cnt -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the total number of requests sent with returning busy. +What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/send_busy_cnt +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the total number of requests sent with returning busy. Available for both PF and VF, and take no other effect on SEC. -What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/err_bd_cnt -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the total number of BD type error requests +What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/err_bd_cnt +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the total number of BD type error requests to be received. Available for both PF and VF, and take no other effect on SEC. -What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/invalid_req_cnt -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the total number of invalid requests being received. +What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/invalid_req_cnt +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the total number of invalid requests being received. Available for both PF and VF, and take no other effect on SEC. -What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/done_flag_cnt -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the total number of completed but marked error requests +What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/done_flag_cnt +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the total number of completed but marked error requests to be received. Available for both PF and VF, and take no other effect on SEC. diff --git a/Documentation/ABI/testing/debugfs-hisi-zip b/Documentation/ABI/testing/debugfs-hisi-zip index 3034a2bf99ca..fd3f314cf8d1 100644 --- a/Documentation/ABI/testing/debugfs-hisi-zip +++ b/Documentation/ABI/testing/debugfs-hisi-zip @@ -1,114 +1,138 @@ -What: /sys/kernel/debug/hisi_zip/<bdf>/comp_core[01]/regs -Date: Nov 2018 -Contact: linux-crypto@vger.kernel.org -Description: Dump of compression cores related debug registers. +What: /sys/kernel/debug/hisi_zip/<bdf>/comp_core[01]/regs +Date: Nov 2018 +Contact: linux-crypto@vger.kernel.org +Description: Dump of compression cores related debug registers. Only available for PF. -What: /sys/kernel/debug/hisi_zip/<bdf>/decomp_core[0-5]/regs -Date: Nov 2018 -Contact: linux-crypto@vger.kernel.org -Description: Dump of decompression cores related debug registers. +What: /sys/kernel/debug/hisi_zip/<bdf>/decomp_core[0-5]/regs +Date: Nov 2018 +Contact: linux-crypto@vger.kernel.org +Description: Dump of decompression cores related debug registers. Only available for PF. -What: /sys/kernel/debug/hisi_zip/<bdf>/clear_enable -Date: Nov 2018 -Contact: linux-crypto@vger.kernel.org -Description: Compression/decompression core debug registers read clear +What: /sys/kernel/debug/hisi_zip/<bdf>/clear_enable +Date: Nov 2018 +Contact: linux-crypto@vger.kernel.org +Description: Compression/decompression core debug registers read clear control. 1 means enable register read clear, otherwise 0. Writing to this file has no functional effect, only enable or disable counters clear after reading of these registers. Only available for PF. -What: /sys/kernel/debug/hisi_zip/<bdf>/current_qm -Date: Nov 2018 -Contact: linux-crypto@vger.kernel.org -Description: One ZIP controller has one PF and multiple VFs, each function +What: /sys/kernel/debug/hisi_zip/<bdf>/current_qm +Date: Nov 2018 +Contact: linux-crypto@vger.kernel.org +Description: One ZIP controller has one PF and multiple VFs, each function has a QM. Select the QM which below qm refers to. Only available for PF. -What: /sys/kernel/debug/hisi_zip/<bdf>/qm/regs -Date: Nov 2018 -Contact: linux-crypto@vger.kernel.org -Description: Dump of QM related debug registers. +What: /sys/kernel/debug/hisi_zip/<bdf>/alg_qos +Date: Jun 2021 +Contact: linux-crypto@vger.kernel.org +Description: The <bdf> is related the function for PF and VF. + ZIP driver supports to configure each function's QoS, the driver + supports to write <bdf> value to alg_qos in the host. Such as + "echo <bdf> value > alg_qos". The qos value is 1~1000, means + 1/1000~1000/1000 of total QoS. The driver reading alg_qos to + get related QoS in the host and VM, Such as "cat alg_qos". + +What: /sys/kernel/debug/hisi_zip/<bdf>/qm/regs +Date: Nov 2018 +Contact: linux-crypto@vger.kernel.org +Description: Dump of QM related debug registers. Available for PF and VF in host. VF in guest currently only has one debug register. -What: /sys/kernel/debug/hisi_zip/<bdf>/qm/current_q -Date: Nov 2018 -Contact: linux-crypto@vger.kernel.org -Description: One QM may contain multiple queues. Select specific queue to +What: /sys/kernel/debug/hisi_zip/<bdf>/qm/current_q +Date: Nov 2018 +Contact: linux-crypto@vger.kernel.org +Description: One QM may contain multiple queues. Select specific queue to show its debug registers in above regs. Only available for PF. -What: /sys/kernel/debug/hisi_zip/<bdf>/qm/clear_enable -Date: Nov 2018 -Contact: linux-crypto@vger.kernel.org -Description: QM debug registers(regs) read clear control. 1 means enable +What: /sys/kernel/debug/hisi_zip/<bdf>/qm/clear_enable +Date: Nov 2018 +Contact: linux-crypto@vger.kernel.org +Description: QM debug registers(regs) read clear control. 1 means enable register read clear, otherwise 0. Writing to this file has no functional effect, only enable or disable counters clear after reading of these registers. Only available for PF. -What: /sys/kernel/debug/hisi_zip/<bdf>/qm/err_irq -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the number of invalid interrupts for +What: /sys/kernel/debug/hisi_zip/<bdf>/qm/err_irq +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the number of invalid interrupts for QM task completion. Available for both PF and VF, and take no other effect on ZIP. -What: /sys/kernel/debug/hisi_zip/<bdf>/qm/aeq_irq -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the number of QM async event queue interrupts. +What: /sys/kernel/debug/hisi_zip/<bdf>/qm/aeq_irq +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the number of QM async event queue interrupts. Available for both PF and VF, and take no other effect on ZIP. -What: /sys/kernel/debug/hisi_zip/<bdf>/qm/abnormal_irq -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the number of interrupts for QM abnormal event. +What: /sys/kernel/debug/hisi_zip/<bdf>/qm/abnormal_irq +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the number of interrupts for QM abnormal event. Available for both PF and VF, and take no other effect on ZIP. -What: /sys/kernel/debug/hisi_zip/<bdf>/qm/create_qp_err -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the number of queue allocation errors. +What: /sys/kernel/debug/hisi_zip/<bdf>/qm/create_qp_err +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the number of queue allocation errors. Available for both PF and VF, and take no other effect on ZIP. -What: /sys/kernel/debug/hisi_zip/<bdf>/qm/mb_err -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the number of failed QM mailbox commands. +What: /sys/kernel/debug/hisi_zip/<bdf>/qm/mb_err +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the number of failed QM mailbox commands. Available for both PF and VF, and take no other effect on ZIP. -What: /sys/kernel/debug/hisi_zip/<bdf>/qm/status -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the status of the QM. +What: /sys/kernel/debug/hisi_zip/<bdf>/qm/status +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the status of the QM. Four states: initiated, started, stopped and closed. Available for both PF and VF, and take no other effect on ZIP. -What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/send_cnt -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the total number of sent requests. +What: /sys/kernel/debug/hisi_zip/<bdf>/qm/diff_regs +Date: Mar 2022 +Contact: linux-crypto@vger.kernel.org +Description: QM debug registers(regs) read hardware register value. This + node is used to show the change of the qm registers value. This + node can be help users to check the change of register values. + +What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/diff_regs +Date: Mar 2022 +Contact: linux-crypto@vger.kernel.org +Description: ZIP debug registers(regs) read hardware register value. This + node is used to show the change of the registers value. this + node can be help users to check the change of register values. + +What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/send_cnt +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the total number of sent requests. Available for both PF and VF, and take no other effect on ZIP. -What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/recv_cnt -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the total number of received requests. +What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/recv_cnt +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the total number of received requests. Available for both PF and VF, and take no other effect on ZIP. -What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/send_busy_cnt -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the total number of requests received +What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/send_busy_cnt +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the total number of requests received with returning busy. Available for both PF and VF, and take no other effect on ZIP. -What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/err_bd_cnt -Date: Apr 2020 -Contact: linux-crypto@vger.kernel.org -Description: Dump the total number of BD type error requests +What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/err_bd_cnt +Date: Apr 2020 +Contact: linux-crypto@vger.kernel.org +Description: Dump the total number of BD type error requests to be received. Available for both PF and VF, and take no other effect on ZIP. diff --git a/Documentation/ABI/testing/ima_policy b/Documentation/ABI/testing/ima_policy index 839fab811b18..db17fc8a0c9f 100644 --- a/Documentation/ABI/testing/ima_policy +++ b/Documentation/ABI/testing/ima_policy @@ -27,8 +27,9 @@ Description: [fowner=] [fgroup=]] lsm: [[subj_user=] [subj_role=] [subj_type=] [obj_user=] [obj_role=] [obj_type=]] - option: [[appraise_type=]] [template=] [permit_directio] - [appraise_flag=] [appraise_algos=] [keyrings=] + option: [digest_type=] [template=] [permit_directio] + [appraise_type=] [appraise_flag=] + [appraise_algos=] [keyrings=] base: func:= [BPRM_CHECK][MMAP_CHECK][CREDS_CHECK][FILE_CHECK][MODULE_CHECK] [FIRMWARE_CHECK] @@ -47,10 +48,21 @@ Description: fgroup:= decimal value lsm: are LSM specific option: - appraise_type:= [imasig] [imasig|modsig] + appraise_type:= [imasig] | [imasig|modsig] | [sigv3] + where 'imasig' is the original or the signature + format v2. + where 'modsig' is an appended signature, + where 'sigv3' is the signature format v3. (Currently + limited to fsverity digest based signatures + stored in security.ima xattr. Requires + specifying "digest_type=verity" first.) + appraise_flag:= [check_blacklist] Currently, blacklist check is only for files signed with appended signature. + digest_type:= verity + Require fs-verity's file digest instead of the + regular IMA file hash. keyrings:= list of keyrings (eg, .builtin_trusted_keys|.ima). Only valid when action is "measure" and func is KEY_CHECK. @@ -149,3 +161,30 @@ Description: security.ima xattr of a file: appraise func=SETXATTR_CHECK appraise_algos=sha256,sha384,sha512 + + Example of a 'measure' rule requiring fs-verity's digests + with indication of type of digest in the measurement list. + + measure func=FILE_CHECK digest_type=verity \ + template=ima-ngv2 + + Example of 'measure' and 'appraise' rules requiring fs-verity + signatures (format version 3) stored in security.ima xattr. + + The 'measure' rule specifies the 'ima-sigv3' template option, + which includes the indication of type of digest and the file + signature in the measurement list. + + measure func=BPRM_CHECK digest_type=verity \ + template=ima-sigv3 + + + The 'appraise' rule specifies the type and signature format + version (sigv3) required. + + appraise func=BPRM_CHECK digest_type=verity \ + appraise_type=sigv3 + + All of these policy rules could, for example, be constrained + either based on a filesystem's UUID (fsuuid) or based on LSM + labels. diff --git a/Documentation/ABI/testing/securityfs-secrets-coco b/Documentation/ABI/testing/securityfs-secrets-coco new file mode 100644 index 000000000000..f2b6909155f9 --- /dev/null +++ b/Documentation/ABI/testing/securityfs-secrets-coco @@ -0,0 +1,51 @@ +What: security/secrets/coco +Date: February 2022 +Contact: Dov Murik <dovmurik@linux.ibm.com> +Description: + Exposes confidential computing (coco) EFI secrets to + userspace via securityfs. + + EFI can declare memory area used by confidential computing + platforms (such as AMD SEV and SEV-ES) for secret injection by + the Guest Owner during VM's launch. The secrets are encrypted + by the Guest Owner and decrypted inside the trusted enclave, + and therefore are not readable by the untrusted host. + + The efi_secret module exposes the secrets to userspace. Each + secret appears as a file under <securityfs>/secrets/coco, + where the filename is the GUID of the entry in the secrets + table. This module is loaded automatically by the EFI driver + if the EFI secret area is populated. + + Two operations are supported for the files: read and unlink. + Reading the file returns the content of secret entry. + Unlinking the file overwrites the secret data with zeroes and + removes the entry from the filesystem. A secret cannot be read + after it has been unlinked. + + For example, listing the available secrets:: + + # modprobe efi_secret + # ls -l /sys/kernel/security/secrets/coco + -r--r----- 1 root root 0 Jun 28 11:54 736870e5-84f0-4973-92ec-06879ce3da0b + -r--r----- 1 root root 0 Jun 28 11:54 83c83f7f-1356-4975-8b7e-d3a0b54312c6 + -r--r----- 1 root root 0 Jun 28 11:54 9553f55d-3da2-43ee-ab5d-ff17f78864d2 + -r--r----- 1 root root 0 Jun 28 11:54 e6f5a162-d67f-4750-a67c-5d065f2a9910 + + Reading the secret data by reading a file:: + + # cat /sys/kernel/security/secrets/coco/e6f5a162-d67f-4750-a67c-5d065f2a9910 + the-content-of-the-secret-data + + Wiping a secret by unlinking a file:: + + # rm /sys/kernel/security/secrets/coco/e6f5a162-d67f-4750-a67c-5d065f2a9910 + # ls -l /sys/kernel/security/secrets/coco + -r--r----- 1 root root 0 Jun 28 11:54 736870e5-84f0-4973-92ec-06879ce3da0b + -r--r----- 1 root root 0 Jun 28 11:54 83c83f7f-1356-4975-8b7e-d3a0b54312c6 + -r--r----- 1 root root 0 Jun 28 11:54 9553f55d-3da2-43ee-ab5d-ff17f78864d2 + + Note: The binary format of the secrets table injected by the + Guest Owner is described in + drivers/virt/coco/efi_secret/efi_secret.c under "Structure of + the EFI secret area". diff --git a/Documentation/ABI/testing/sysfs-ata b/Documentation/ABI/testing/sysfs-ata index 2f726c914752..3daecac48964 100644 --- a/Documentation/ABI/testing/sysfs-ata +++ b/Documentation/ABI/testing/sysfs-ata @@ -107,13 +107,14 @@ Description: described in ATA8 7.16 and 7.17. Only valid if the device is not a PM. - pio_mode: (RO) Transfer modes supported by the device when - in PIO mode. Mostly used by PATA device. + pio_mode: (RO) PIO transfer mode used by the device. + Mostly used by PATA devices. - xfer_mode: (RO) Current transfer mode + xfer_mode: (RO) Current transfer mode. Mostly used by + PATA devices. - dma_mode: (RO) Transfer modes supported by the device when - in DMA mode. Mostly used by PATA device. + dma_mode: (RO) DMA transfer mode used by the device. + Mostly used by PATA devices. class: (RO) Device class. Can be "ata" for disk, "atapi" for packet device, "pmp" for PM, or diff --git a/Documentation/ABI/testing/sysfs-bus-cxl b/Documentation/ABI/testing/sysfs-bus-cxl index 0b6a2e6e8fbb..7c2b846521f3 100644 --- a/Documentation/ABI/testing/sysfs-bus-cxl +++ b/Documentation/ABI/testing/sysfs-bus-cxl @@ -1,3 +1,12 @@ +What: /sys/bus/cxl/flush +Date: Januarry, 2022 +KernelVersion: v5.18 +Contact: linux-cxl@vger.kernel.org +Description: + (WO) If userspace manually unbinds a port the kernel schedules + all descendant memdevs for unbind. Writing '1' to this attribute + flushes that work. + What: /sys/bus/cxl/devices/memX/firmware_version Date: December, 2020 KernelVersion: v5.12 @@ -25,6 +34,24 @@ Description: identically named field in the Identify Memory Device Output Payload in the CXL-2.0 specification. +What: /sys/bus/cxl/devices/memX/serial +Date: January, 2022 +KernelVersion: v5.18 +Contact: linux-cxl@vger.kernel.org +Description: + (RO) 64-bit serial number per the PCIe Device Serial Number + capability. Mandatory for CXL devices, see CXL 2.0 8.1.12.2 + Memory Device PCIe Capabilities and Extended Capabilities. + +What: /sys/bus/cxl/devices/memX/numa_node +Date: January, 2022 +KernelVersion: v5.18 +Contact: linux-cxl@vger.kernel.org +Description: + (RO) If NUMA is enabled and the platform has affinitized the + host PCI device for this memory device, emit the CPU node + affinity for this device. + What: /sys/bus/cxl/devices/*/devtype Date: June, 2021 KernelVersion: v5.14 @@ -34,6 +61,15 @@ Description: the same value communicated in the DEVTYPE environment variable for uevents for devices on the "cxl" bus. +What: /sys/bus/cxl/devices/*/modalias +Date: December, 2021 +KernelVersion: v5.18 +Contact: linux-cxl@vger.kernel.org +Description: + CXL device objects export the modalias attribute which mirrors + the same value communicated in the MODALIAS environment variable + for uevents for devices on the "cxl" bus. + What: /sys/bus/cxl/devices/portX/uport Date: June, 2021 KernelVersion: v5.14 diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index c551301b33f1..d4ccc68fdcf0 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -476,6 +476,7 @@ What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_calibscale What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_calibscale What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_calibscale What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_calibscale +What: /sys/bus/iio/devices/iio:deviceX/in_altvoltage_calibscale What: /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale @@ -1213,6 +1214,32 @@ Description: number or direction is not specified, applies to all channels of this type. +What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_en +What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_rising_en +What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_falling_en +What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_en +What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_rising_en +What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_falling_en +KernelVersion: 5.18 +Contact: linux-iio@vger.kernel.org +Description: + Similar to in_accel_mag[_y][_rising|_falling]_en, but the event + value is relative to a reference magnitude. The reference magnitude + includes the graviational acceleration. + +What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_value +What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_rising_value +What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_falling_value +What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_value +What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_rising_value +What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_falling_value +KernelVersion: 5.18 +Contact: linux-iio@vger.kernel.org +Description: + The value to which the reference magnitude of the channel is + compared. If the axis is not specified, it applies to all channels + of this type. + What: /sys/.../events/in_steps_change_en KernelVersion: 4.0 Contact: linux-iio@vger.kernel.org @@ -1252,6 +1279,10 @@ Description: Actually start the buffer capture up. Will start trigger if first device and appropriate. + Note that it might be impossible to configure other attributes, + (e.g.: events, scale, sampling rate) if they impact the currently + active buffer capture session. + What: /sys/bus/iio/devices/iio:deviceX/bufferY KernelVersion: 5.11 Contact: linux-iio@vger.kernel.org diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7280a b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7280a new file mode 100644 index 000000000000..83b7efe6aa07 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7280a @@ -0,0 +1,13 @@ +What: /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_balance_switch_en +KernelVersion: 5.14 +Contact: linux-iio@vger.kernel.org +Description: + Used to enable an output for balancing cells for time + controlled via in_voltage_Y-voltageZ_balance_switch_timer. + +What: /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_balance_switch_timer +KernelVersion: 5.14 +Contact: linux-iio@vger.kernel.org +Description: + Time in seconds for which balance switch will be turned on. + Multiple of 71.5 seconds. diff --git a/Documentation/ABI/testing/sysfs-bus-iio-dac-ltc2688 b/Documentation/ABI/testing/sysfs-bus-iio-dac-ltc2688 new file mode 100644 index 000000000000..1c35971277ba --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-iio-dac-ltc2688 @@ -0,0 +1,86 @@ +What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_dither_en +KernelVersion: 5.18 +Contact: linux-iio@vger.kernel.org +Description: + Dither enable. Write 1 to enable dither or 0 to disable it. This is useful + for changing the dither parameters. They way it should be done is: + + - disable dither operation; + - change dither parameters (eg: frequency, phase...); + - enabled dither operation + +What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_dither_raw +KernelVersion: 5.18 +Contact: linux-iio@vger.kernel.org +Description: + This raw, unscaled value refers to the dither signal amplitude. + The same scale as in out_voltageY_raw applies. However, the + offset might be different as it's always 0 for this attribute. + +What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_dither_raw_available +KernelVersion: 5.18 +Contact: linux-iio@vger.kernel.org +Description: + Available range for dither raw amplitude values. + +What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_dither_offset +KernelVersion: 5.18 +Contact: linux-iio@vger.kernel.org +Description: + Offset applied to out_voltageY_dither_raw. Read only attribute + always set to 0. + +What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_dither_frequency +KernelVersion: 5.18 +Contact: linux-iio@vger.kernel.org +Description: + Sets the dither signal frequency. Units are in Hz. + +What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_dither_frequency_available +KernelVersion: 5.18 +Contact: linux-iio@vger.kernel.org +Description: + Returns the available values for the dither frequency. + +What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_dither_phase +KernelVersion: 5.18 +Contact: linux-iio@vger.kernel.org +Description: + Sets the dither signal phase. Units are in Radians. + +What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_dither_phase_available +KernelVersion: 5.18 +Contact: linux-iio@vger.kernel.org +Description: + Returns the available values for the dither phase. + +What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_toggle_en +KernelVersion: 5.18 +Contact: linux-iio@vger.kernel.org +Description: + Toggle enable. Write 1 to enable toggle or 0 to disable it. This is + useful when one wants to change the DAC output codes. The way it should + be done is: + + - disable toggle operation; + - change out_voltageY_raw0 and out_voltageY_raw1; + - enable toggle operation. + +What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw0 +What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw1 +KernelVersion: 5.18 +Contact: linux-iio@vger.kernel.org +Description: + It has the same meaning as out_voltageY_raw. This attribute is + specific to toggle enabled channels and refers to the DAC output + code in INPUT_A (_raw0) and INPUT_B (_raw1). The same scale and offset + as in out_voltageY_raw applies. + +What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_symbol +KernelVersion: 5.18 +Contact: linux-iio@vger.kernel.org +Description: + Performs a SW toggle. This attribute is specific to toggle + enabled channels and allows to toggle between out_voltageY_raw0 + and out_voltageY_raw1 through software. Writing 0 will select + out_voltageY_raw0 while 1 selects out_voltageY_raw1. diff --git a/Documentation/ABI/testing/sysfs-bus-iio-frequency-admv1014 b/Documentation/ABI/testing/sysfs-bus-iio-frequency-admv1014 new file mode 100644 index 000000000000..395010a0ef8b --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-iio-frequency-admv1014 @@ -0,0 +1,23 @@ +What: /sys/bus/iio/devices/iio:deviceX/in_altvoltage0_i_calibscale_coarse +KernelVersion: 5.18 +Contact: linux-iio@vger.kernel.org +Description: + Read/write value for the digital attenuator gain (IF_I) with coarse steps. + +What: /sys/bus/iio/devices/iio:deviceX/in_altvoltage0_q_calibscale_coarse +KernelVersion: 5.18 +Contact: linux-iio@vger.kernel.org +Description: + Read/write value for the digital attenuator gain (IF_Q) with coarse steps. + +What: /sys/bus/iio/devices/iio:deviceX/in_altvoltage0_i_calibscale_fine +KernelVersion: 5.18 +Contact: linux-iio@vger.kernel.org +Description: + Read/write value for the digital attenuator gain (IF_I) with fine steps. + +What: /sys/bus/iio/devices/iio:deviceX/in_altvoltage0_q_calibscale_fine +KernelVersion: 5.18 +Contact: linux-iio@vger.kernel.org +Description: + Read/write value for the digital attenuator gain (IF_Q) with fine steps. diff --git a/Documentation/ABI/testing/sysfs-bus-iio-sx9324 b/Documentation/ABI/testing/sysfs-bus-iio-sx9324 new file mode 100644 index 000000000000..632e3321f5a3 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-iio-sx9324 @@ -0,0 +1,28 @@ +What: /sys/bus/iio/devices/iio:deviceX/in_proximity<id>_setup +Date: November 2021 +KernelVersion: 5.17 +Contact: Gwendal Grignou <gwendal@chromium.org> +Description: + SX9324 has 3 inputs, CS0, CS1 and CS2. Hardware layout + defines if the input is + + not connected (HZ), + + grounded (GD), + + connected to an antenna where it can act as a base + (DS - data shield), or measured input (MI). + + The sensor rotates measurement across 4 phases + (PH0, PH1, PH2, PH3), where the inputs are configured + and then measured. + + By default, during the first phase, [PH0], CS0 is measured, + while CS1 and CS2 are used as shields. + `cat in_proximity0_setup` returns "MI,DS,DS". + [PH1], CS1 is measured, CS0 and CS2 are shield: + `cat in_proximity1_setup` returns "DS,MI,DS". + [PH2], CS2 is measured, CS0 and CS1 are shield: + `cat in_proximity1_setup` returns "DS,DS,MI". + [PH3], CS1 and CS2 are measured (combo mode): + `cat in_proximity1_setup` returns "DS,MI,MI". + + Note, these are the chip default. Hardware layout will most + likely dictate different output. The entry is read-only. diff --git a/Documentation/ABI/testing/sysfs-bus-iio-vf610 b/Documentation/ABI/testing/sysfs-bus-iio-vf610 index 308a6756d3bf..491ead804488 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio-vf610 +++ b/Documentation/ABI/testing/sysfs-bus-iio-vf610 @@ -1,4 +1,4 @@ -What: /sys/bus/iio/devices/iio:deviceX/conversion_mode +What: /sys/bus/iio/devices/iio:deviceX/in_conversion_mode KernelVersion: 4.2 Contact: linux-iio@vger.kernel.org Description: diff --git a/Documentation/ABI/testing/sysfs-bus-nvdimm b/Documentation/ABI/testing/sysfs-bus-nvdimm index bff84a16812a..1c1f5acbf53d 100644 --- a/Documentation/ABI/testing/sysfs-bus-nvdimm +++ b/Documentation/ABI/testing/sysfs-bus-nvdimm @@ -6,3 +6,38 @@ Description: The libnvdimm sub-system implements a common sysfs interface for platform nvdimm resources. See Documentation/driver-api/nvdimm/. + +What: /sys/bus/event_source/devices/nmemX/format +Date: February 2022 +KernelVersion: 5.18 +Contact: Kajol Jain <kjain@linux.ibm.com> +Description: (RO) Attribute group to describe the magic bits + that go into perf_event_attr.config for a particular pmu. + (See ABI/testing/sysfs-bus-event_source-devices-format). + + Each attribute under this group defines a bit range of the + perf_event_attr.config. Supported attribute is listed + below:: + event = "config:0-4" - event ID + + For example:: + ctl_res_cnt = "event=0x1" + +What: /sys/bus/event_source/devices/nmemX/events +Date: February 2022 +KernelVersion: 5.18 +Contact: Kajol Jain <kjain@linux.ibm.com> +Description: (RO) Attribute group to describe performance monitoring events + for the nvdimm memory device. Each attribute in this group + describes a single performance monitoring event supported by + this nvdimm pmu. The name of the file is the name of the event. + (See ABI/testing/sysfs-bus-event_source-devices-events). A + listing of the events supported by a given nvdimm provider type + can be found in Documentation/driver-api/nvdimm/$provider. + +What: /sys/bus/event_source/devices/nmemX/cpumask +Date: February 2022 +KernelVersion: 5.18 +Contact: Kajol Jain <kjain@linux.ibm.com> +Description: (RO) This sysfs file exposes the cpumask which is designated to + to retrieve nvdimm pmu event counter data. diff --git a/Documentation/ABI/testing/sysfs-bus-papr-pmem b/Documentation/ABI/testing/sysfs-bus-papr-pmem index 95254cec92bf..4ac0673901e7 100644 --- a/Documentation/ABI/testing/sysfs-bus-papr-pmem +++ b/Documentation/ABI/testing/sysfs-bus-papr-pmem @@ -61,3 +61,15 @@ Description: * "CchRHCnt" : Cache Read Hit Count * "CchWHCnt" : Cache Write Hit Count * "FastWCnt" : Fast Write Count + +What: /sys/bus/nd/devices/nmemX/papr/health_bitmap_inject +Date: Jan, 2022 +KernelVersion: v5.17 +Contact: linuxppc-dev <linuxppc-dev@lists.ozlabs.org>, nvdimm@lists.linux.dev, +Description: + (RO) Reports the health bitmap inject bitmap that is applied to + bitmap received from PowerVM via the H_SCM_HEALTH. This is used + to forcibly set specific bits returned from Hcall. These is then + used to simulate various health or shutdown states for an nvdimm + and are set by user-space tools like ndctl by issuing a PAPR DSM. + diff --git a/Documentation/ABI/testing/sysfs-bus-peci b/Documentation/ABI/testing/sysfs-bus-peci new file mode 100644 index 000000000000..87454ec5d981 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-peci @@ -0,0 +1,16 @@ +What: /sys/bus/peci/rescan +Date: July 2021 +KernelVersion: 5.18 +Contact: Iwona Winiarska <iwona.winiarska@intel.com> +Description: + Writing a non-zero value to this attribute will + initiate scan for PECI devices on all PECI controllers + in the system. + +What: /sys/bus/peci/devices/<controller_id>-<device_addr>/remove +Date: July 2021 +KernelVersion: 5.18 +Contact: Iwona Winiarska <iwona.winiarska@intel.com> +Description: + Writing a non-zero value to this attribute will + remove the PECI device and any of its children. diff --git a/Documentation/ABI/testing/sysfs-bus-thunderbolt b/Documentation/ABI/testing/sysfs-bus-thunderbolt index b7e87f6c7d47..f7570c240ce8 100644 --- a/Documentation/ABI/testing/sysfs-bus-thunderbolt +++ b/Documentation/ABI/testing/sysfs-bus-thunderbolt @@ -293,6 +293,16 @@ Contact: thunderbolt-software@lists.01.org Description: This contains XDomain service specific settings as bitmask. Format: %x +What: /sys/bus/thunderbolt/devices/usb4_portX/connector +Date: April 2022 +Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com> +Description: + Symlink to the USB Type-C connector. This link is only + created when USB Type-C Connector Class is enabled, + and only if the system firmware is capable of + describing the connection between a port and its + connector. + What: /sys/bus/thunderbolt/devices/usb4_portX/link Date: Sep 2021 KernelVersion: v5.14 diff --git a/Documentation/ABI/testing/sysfs-class-cxl b/Documentation/ABI/testing/sysfs-class-cxl index 3c77677e0ca7..594fda254130 100644 --- a/Documentation/ABI/testing/sysfs-class-cxl +++ b/Documentation/ABI/testing/sysfs-class-cxl @@ -103,8 +103,8 @@ What: /sys/class/cxl/<afu>/api_version_compatible Date: September 2014 Contact: linuxppc-dev@lists.ozlabs.org Description: read only - Decimal value of the the lowest version of the userspace API - this this kernel supports. + Decimal value of the lowest version of the userspace API + this kernel supports. Users: https://github.com/ibm-capi/libcxl diff --git a/Documentation/ABI/testing/sysfs-class-firmware b/Documentation/ABI/testing/sysfs-class-firmware new file mode 100644 index 000000000000..978d3d500400 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-firmware @@ -0,0 +1,77 @@ +What: /sys/class/firmware/.../data +Date: July 2022 +KernelVersion: 5.19 +Contact: Russ Weight <russell.h.weight@intel.com> +Description: The data sysfs file is used for firmware-fallback and for + firmware uploads. Cat a firmware image to this sysfs file + after you echo 1 to the loading sysfs file. When the firmware + image write is complete, echo 0 to the loading sysfs file. This + sequence will signal the completion of the firmware write and + signal the lower-level driver that the firmware data is + available. + +What: /sys/class/firmware/.../cancel +Date: July 2022 +KernelVersion: 5.19 +Contact: Russ Weight <russell.h.weight@intel.com> +Description: Write-only. For firmware uploads, write a "1" to this file to + request that the transfer of firmware data to the lower-level + device be canceled. This request will be rejected (EBUSY) if + the update cannot be canceled (e.g. a FLASH write is in + progress) or (ENODEV) if there is no firmware update in progress. + +What: /sys/class/firmware/.../error +Date: July 2022 +KernelVersion: 5.19 +Contact: Russ Weight <russell.h.weight@intel.com> +Description: Read-only. Returns a string describing a failed firmware + upload. This string will be in the form of <STATUS>:<ERROR>, + where <STATUS> will be one of the status strings described + for the status sysfs file and <ERROR> will be one of the + following: "hw-error", "timeout", "user-abort", "device-busy", + "invalid-file-size", "read-write-error", "flash-wearout". The + error sysfs file is only meaningful when the current firmware + upload status is "idle". If this file is read while a firmware + transfer is in progress, then the read will fail with EBUSY. + +What: /sys/class/firmware/.../loading +Date: July 2022 +KernelVersion: 5.19 +Contact: Russ Weight <russell.h.weight@intel.com> +Description: The loading sysfs file is used for both firmware-fallback and + for firmware uploads. Echo 1 onto the loading file to indicate + you are writing a firmware file to the data sysfs node. Echo + -1 onto this file to abort the data write or echo 0 onto this + file to indicate that the write is complete. For firmware + uploads, the zero value also triggers the transfer of the + firmware data to the lower-level device driver. + +What: /sys/class/firmware/.../remaining_size +Date: July 2022 +KernelVersion: 5.19 +Contact: Russ Weight <russell.h.weight@intel.com> +Description: Read-only. For firmware upload, this file contains the size + of the firmware data that remains to be transferred to the + lower-level device driver. The size value is initialized to + the full size of the firmware image that was previously + written to the data sysfs file. This value is periodically + updated during the "transferring" phase of the firmware + upload. + Format: "%u". + +What: /sys/class/firmware/.../status +Date: July 2022 +KernelVersion: 5.19 +Contact: Russ Weight <russell.h.weight@intel.com> +Description: Read-only. Returns a string describing the current status of + a firmware upload. The string will be one of the following: + idle, "receiving", "preparing", "transferring", "programming". + +What: /sys/class/firmware/.../timeout +Date: July 2022 +KernelVersion: 5.19 +Contact: Russ Weight <russell.h.weight@intel.com> +Description: This file supports the timeout mechanism for firmware + fallback. This file has no affect on firmware uploads. For + more information on timeouts please see the documentation + for firmware fallback. diff --git a/Documentation/ABI/testing/sysfs-class-firmware-attributes b/Documentation/ABI/testing/sysfs-class-firmware-attributes index 13e31c6a0e9c..4cdba3477176 100644 --- a/Documentation/ABI/testing/sysfs-class-firmware-attributes +++ b/Documentation/ABI/testing/sysfs-class-firmware-attributes @@ -116,7 +116,7 @@ Description: <value>[ForceIf:<attribute>=<value>] <value>[ForceIfNot:<attribute>=<value>] - For example: + For example:: LegacyOrom/dell_value_modifier has value: Disabled[ForceIf:SecureBoot=Enabled] @@ -212,7 +212,7 @@ Description: the next boot. Lenovo specific class extensions - ------------------------------ + -------------------------------- On Lenovo systems the following additional settings are available: @@ -246,6 +246,55 @@ Description: that is being referenced (e.g hdd0, hdd1 etc) This attribute defaults to device 0. + certificate, signature, save_signature: + These attributes are used for certificate based authentication. This is + used in conjunction with a signing server as an alternative to password + based authentication. + The user writes to the attribute(s) with a BASE64 encoded string obtained + from the signing server. + The attributes can be displayed to check the stored value. + + Some usage examples: + + Installing a certificate to enable feature:: + + echo "supervisor password" > authentication/Admin/current_password + echo "signed certificate" > authentication/Admin/certificate + + Updating the installed certificate:: + + echo "signature" > authentication/Admin/signature + echo "signed certificate" > authentication/Admin/certificate + + Removing the installed certificate:: + + echo "signature" > authentication/Admin/signature + echo "" > authentication/Admin/certificate + + Changing a BIOS setting:: + + echo "signature" > authentication/Admin/signature + echo "save signature" > authentication/Admin/save_signature + echo Enable > attribute/PasswordBeep/current_value + + You cannot enable certificate authentication if a supervisor password + has not been set. + Clearing the certificate results in no bios-admin authentication method + being configured allowing anyone to make changes. + After any of these operations the system must reboot for the changes to + take effect. + + certificate_thumbprint: + Read only attribute used to display the MD5, SHA1 and SHA256 thumbprints + for the certificate installed in the BIOS. + + certificate_to_password: + Write only attribute used to switch from certificate based authentication + back to password based. + Usage:: + + echo "signature" > authentication/Admin/signature + echo "password" > authentication/Admin/certificate_to_password What: /sys/class/firmware-attributes/*/attributes/pending_reboot @@ -300,7 +349,7 @@ Description: # echo "factory" > /sys/class/firmware-attributes/*/device/attributes/reset_bios # cat /sys/class/firmware-attributes/*/device/attributes/reset_bios - # builtinsafe lastknowngood [factory] custom + builtinsafe lastknowngood [factory] custom Note that any changes to this attribute requires a reboot for changes to take effect. diff --git a/Documentation/ABI/testing/sysfs-class-hwmon b/Documentation/ABI/testing/sysfs-class-hwmon index 1f20687def44..653d4c75eddb 100644 --- a/Documentation/ABI/testing/sysfs-class-hwmon +++ b/Documentation/ABI/testing/sysfs-class-hwmon @@ -9,6 +9,14 @@ Description: RO +What: /sys/class/hwmon/hwmonX/label +Description: + A descriptive label that allows to uniquely identify a + device within the system. + The contents of the label are free-form. + + RO + What: /sys/class/hwmon/hwmonX/update_interval Description: The interval at which the chip will update readings. diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power index 859501366777..a9ce63cfbe87 100644 --- a/Documentation/ABI/testing/sysfs-class-power +++ b/Documentation/ABI/testing/sysfs-class-power @@ -380,13 +380,17 @@ Description: algorithm to adjust the charge rate dynamically, without any user configuration required. "Custom" means that the charger uses the charge_control_* properties as configuration for some - different algorithm. + different algorithm. "Long Life" means the charger reduces its + charging rate in order to prolong the battery health. "Bypass" + means the charger bypasses the charging path around the + integrated converter allowing for a "smart" wall adaptor to + perform the power conversion externally. Access: Read, Write Valid values: "Unknown", "N/A", "Trickle", "Fast", "Standard", - "Adaptive", "Custom" + "Adaptive", "Custom", "Long Life", "Bypass" What: /sys/class/power_supply/<supply_name>/charge_term_current Date: July 2014 diff --git a/Documentation/ABI/testing/sysfs-class-regulator b/Documentation/ABI/testing/sysfs-class-regulator index 8516f08806dd..475b9a372657 100644 --- a/Documentation/ABI/testing/sysfs-class-regulator +++ b/Documentation/ABI/testing/sysfs-class-regulator @@ -370,3 +370,84 @@ Description: 'unknown' means software cannot determine the state, or the reported state is invalid. + +What: /sys/class/regulator/.../under_voltage +Date: April 2022 +KernelVersion: 5.18 +Contact: Zev Weiss <zev@bewilderbeest.net> +Description: + Some regulator directories will contain a field called + under_voltage. This indicates if the device reports an + under-voltage fault (1) or not (0). + +What: /sys/class/regulator/.../over_current +Date: April 2022 +KernelVersion: 5.18 +Contact: Zev Weiss <zev@bewilderbeest.net> +Description: + Some regulator directories will contain a field called + over_current. This indicates if the device reports an + over-current fault (1) or not (0). + +What: /sys/class/regulator/.../regulation_out +Date: April 2022 +KernelVersion: 5.18 +Contact: Zev Weiss <zev@bewilderbeest.net> +Description: + Some regulator directories will contain a field called + regulation_out. This indicates if the device reports an + out-of-regulation fault (1) or not (0). + +What: /sys/class/regulator/.../fail +Date: April 2022 +KernelVersion: 5.18 +Contact: Zev Weiss <zev@bewilderbeest.net> +Description: + Some regulator directories will contain a field called + fail. This indicates if the device reports an output failure + (1) or not (0). + +What: /sys/class/regulator/.../over_temp +Date: April 2022 +KernelVersion: 5.18 +Contact: Zev Weiss <zev@bewilderbeest.net> +Description: + Some regulator directories will contain a field called + over_temp. This indicates if the device reports an + over-temperature fault (1) or not (0). + +What: /sys/class/regulator/.../under_voltage_warn +Date: April 2022 +KernelVersion: 5.18 +Contact: Zev Weiss <zev@bewilderbeest.net> +Description: + Some regulator directories will contain a field called + under_voltage_warn. This indicates if the device reports an + under-voltage warning (1) or not (0). + +What: /sys/class/regulator/.../over_current_warn +Date: April 2022 +KernelVersion: 5.18 +Contact: Zev Weiss <zev@bewilderbeest.net> +Description: + Some regulator directories will contain a field called + over_current_warn. This indicates if the device reports an + over-current warning (1) or not (0). + +What: /sys/class/regulator/.../over_voltage_warn +Date: April 2022 +KernelVersion: 5.18 +Contact: Zev Weiss <zev@bewilderbeest.net> +Description: + Some regulator directories will contain a field called + over_voltage_warn. This indicates if the device reports an + over-voltage warning (1) or not (0). + +What: /sys/class/regulator/.../over_temp_warn +Date: April 2022 +KernelVersion: 5.18 +Contact: Zev Weiss <zev@bewilderbeest.net> +Description: + Some regulator directories will contain a field called + over_temp_warn. This indicates if the device reports an + over-temperature warning (1) or not (0). diff --git a/Documentation/ABI/testing/sysfs-class-thermal b/Documentation/ABI/testing/sysfs-class-thermal index 2c52bb1f864c..8eee37982b2a 100644 --- a/Documentation/ABI/testing/sysfs-class-thermal +++ b/Documentation/ABI/testing/sysfs-class-thermal @@ -203,7 +203,7 @@ Description: - for generic ACPI: should be "Fan", "Processor" or "LCD" - for memory controller device on intel_menlow platform: - should be "Memory controller". + should be "Memory controller". RO, Required diff --git a/Documentation/ABI/testing/sysfs-devices-physical_location b/Documentation/ABI/testing/sysfs-devices-physical_location new file mode 100644 index 000000000000..202324b87083 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-devices-physical_location @@ -0,0 +1,42 @@ +What: /sys/devices/.../physical_location +Date: March 2022 +Contact: Won Chung <wonchung@google.com> +Description: + This directory contains information on physical location of + the device connection point with respect to the system's + housing. + +What: /sys/devices/.../physical_location/panel +Date: March 2022 +Contact: Won Chung <wonchung@google.com> +Description: + Describes which panel surface of the system’s housing the + device connection point resides on. + +What: /sys/devices/.../physical_location/vertical_position +Date: March 2022 +Contact: Won Chung <wonchung@google.com> +Description: + Describes vertical position of the device connection point on + the panel surface. + +What: /sys/devices/.../physical_location/horizontal_position +Date: March 2022 +Contact: Won Chung <wonchung@google.com> +Description: + Describes horizontal position of the device connection point on + the panel surface. + +What: /sys/devices/.../physical_location/dock +Date: March 2022 +Contact: Won Chung <wonchung@google.com> +Description: + "Yes" if the device connection point resides in a docking + station or a port replicator. "No" otherwise. + +What: /sys/devices/.../physical_location/lid +Date: March 2022 +Contact: Won Chung <wonchung@google.com> +Description: + "Yes" if the device connection point resides on the lid of + laptop system. "No" otherwise. diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu index 61f5676a7429..bcc974d276dc 100644 --- a/Documentation/ABI/testing/sysfs-devices-system-cpu +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu @@ -73,6 +73,7 @@ What: /sys/devices/system/cpu/cpuX/topology/core_id /sys/devices/system/cpu/cpuX/topology/physical_package_id /sys/devices/system/cpu/cpuX/topology/thread_siblings /sys/devices/system/cpu/cpuX/topology/thread_siblings_list + /sys/devices/system/cpu/cpuX/topology/ppin Date: December 2008 Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org> Description: CPU topology files that describe a logical CPU's relationship @@ -103,6 +104,11 @@ Description: CPU topology files that describe a logical CPU's relationship thread_siblings_list: human-readable list of cpuX's hardware threads within the same core as cpuX + ppin: human-readable Protected Processor Identification + Number of the socket the cpu# belongs to. There should be + one per physical_package_id. File is readable only to + admin. + See Documentation/admin-guide/cputopology.rst for more information. @@ -520,6 +526,7 @@ What: /sys/devices/system/cpu/vulnerabilities /sys/devices/system/cpu/vulnerabilities/srbds /sys/devices/system/cpu/vulnerabilities/tsx_async_abort /sys/devices/system/cpu/vulnerabilities/itlb_multihit + /sys/devices/system/cpu/vulnerabilities/mmio_stale_data Date: January 2018 Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org> Description: Information about CPU vulnerabilities @@ -662,6 +669,7 @@ Description: Preferred MTE tag checking mode ================ ============================================== "sync" Prefer synchronous mode + "asymm" Prefer asymmetric mode "async" Prefer asynchronous mode ================ ============================================== diff --git a/Documentation/ABI/testing/sysfs-driver-bd9571mwv-regulator b/Documentation/ABI/testing/sysfs-driver-bd9571mwv-regulator index 42214b4ff14a..90596d8bb51c 100644 --- a/Documentation/ABI/testing/sysfs-driver-bd9571mwv-regulator +++ b/Documentation/ABI/testing/sysfs-driver-bd9571mwv-regulator @@ -26,6 +26,6 @@ Description: Read/write the current state of DDR Backup Mode, which controls DDR Backup Mode must be explicitly enabled by the user, to invoke step 1. - See also Documentation/devicetree/bindings/mfd/bd9571mwv.txt. + See also Documentation/devicetree/bindings/mfd/rohm,bd9571mwv.yaml. Users: User space applications for embedded boards equipped with a BD9571MWV PMIC. diff --git a/Documentation/ABI/testing/sysfs-driver-ccp b/Documentation/ABI/testing/sysfs-driver-ccp new file mode 100644 index 000000000000..7aded9b75553 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-ccp @@ -0,0 +1,87 @@ +What: /sys/bus/pci/devices/<BDF>/fused_part +Date: June 2022 +KernelVersion: 5.19 +Contact: mario.limonciello@amd.com +Description: + The /sys/bus/pci/devices/<BDF>/fused_part file reports + whether the CPU or APU has been fused to prevent tampering. + 0: Not fused + 1: Fused + +What: /sys/bus/pci/devices/<BDF>/debug_lock_on +Date: June 2022 +KernelVersion: 5.19 +Contact: mario.limonciello@amd.com +Description: + The /sys/bus/pci/devices/<BDF>/debug_lock_on reports + whether the AMD CPU or APU has been unlocked for debugging. + Possible values: + 0: Not locked + 1: Locked + +What: /sys/bus/pci/devices/<BDF>/tsme_status +Date: June 2022 +KernelVersion: 5.19 +Contact: mario.limonciello@amd.com +Description: + The /sys/bus/pci/devices/<BDF>/tsme_status file reports + the status of transparent secure memory encryption on AMD systems. + Possible values: + 0: Not active + 1: Active + +What: /sys/bus/pci/devices/<BDF>/anti_rollback_status +Date: June 2022 +KernelVersion: 5.19 +Contact: mario.limonciello@amd.com +Description: + The /sys/bus/pci/devices/<BDF>/anti_rollback_status file reports + whether the PSP is enforcing rollback protection. + Possible values: + 0: Not enforcing + 1: Enforcing + +What: /sys/bus/pci/devices/<BDF>/rpmc_production_enabled +Date: June 2022 +KernelVersion: 5.19 +Contact: mario.limonciello@amd.com +Description: + The /sys/bus/pci/devices/<BDF>/rpmc_production_enabled file reports + whether Replay Protected Monotonic Counter support has been enabled. + Possible values: + 0: Not enabled + 1: Enabled + +What: /sys/bus/pci/devices/<BDF>/rpmc_spirom_available +Date: June 2022 +KernelVersion: 5.19 +Contact: mario.limonciello@amd.com +Description: + The /sys/bus/pci/devices/<BDF>/rpmc_spirom_available file reports + whether an Replay Protected Monotonic Counter supported SPI is installed + on the system. + Possible values: + 0: Not present + 1: Present + +What: /sys/bus/pci/devices/<BDF>/hsp_tpm_available +Date: June 2022 +KernelVersion: 5.19 +Contact: mario.limonciello@amd.com +Description: + The /sys/bus/pci/devices/<BDF>/hsp_tpm_available file reports + whether the HSP TPM has been activated. + Possible values: + 0: Not activated or present + 1: Activated + +What: /sys/bus/pci/devices/<BDF>/rom_armor_enforced +Date: June 2022 +KernelVersion: 5.19 +Contact: mario.limonciello@amd.com +Description: + The /sys/bus/pci/devices/<BDF>/rom_armor_enforced file reports + whether RomArmor SPI protection is enforced. + Possible values: + 0: Not enforced + 1: Enforced diff --git a/Documentation/ABI/testing/sysfs-driver-chromeos-acpi b/Documentation/ABI/testing/sysfs-driver-chromeos-acpi new file mode 100644 index 000000000000..c308926e1568 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-chromeos-acpi @@ -0,0 +1,137 @@ +What: /sys/bus/platform/devices/GGL0001:*/BINF.2 +Date: May 2022 +KernelVersion: 5.19 +Description: + Returns active EC firmware of current boot (boolean). + + == =============================== + 0 Read only (recovery) firmware. + 1 Rewritable firmware. + == =============================== + +What: /sys/bus/platform/devices/GGL0001:*/BINF.3 +Date: May 2022 +KernelVersion: 5.19 +Description: + Returns main firmware type for current boot (integer). + + == ===================================== + 0 Recovery. + 1 Normal. + 2 Developer. + 3 Netboot (factory installation only). + == ===================================== + +What: /sys/bus/platform/devices/GGL0001:*/CHSW +Date: May 2022 +KernelVersion: 5.19 +Description: + Returns switch position for Chrome OS specific hardware + switches when the firmware is booted (integer). + + ==== =========================================== + 0 No changes. + 2 Recovery button was pressed. + 4 Recovery button was pressed (EC firmware). + 32 Developer switch was enabled. + 512 Firmware write protection was disabled. + ==== =========================================== + +What: /sys/bus/platform/devices/GGL0001:*/FMAP +Date: May 2022 +KernelVersion: 5.19 +Description: + Returns physical memory address of the start of the main + processor firmware flashmap. + +What: /sys/bus/platform/devices/GGL0001:*/FRID +Date: May 2022 +KernelVersion: 5.19 +Description: + Returns firmware version for the read-only portion of the + main processor firmware. + +What: /sys/bus/platform/devices/GGL0001:*/FWID +Date: May 2022 +KernelVersion: 5.19 +Description: + Returns firmware version for the rewritable portion of the + main processor firmware. + +What: /sys/bus/platform/devices/GGL0001:*/GPIO.X/GPIO.0 +Date: May 2022 +KernelVersion: 5.19 +Description: + Returns type of the GPIO signal for the Chrome OS specific + GPIO assignments (integer). + + =========== ================================== + 1 Recovery button. + 2 Developer mode switch. + 3 Firmware write protection switch. + 256 to 511 Debug header GPIO 0 to GPIO 255. + =========== ================================== + +What: /sys/bus/platform/devices/GGL0001:*/GPIO.X/GPIO.1 +Date: May 2022 +KernelVersion: 5.19 +Description: + Returns signal attributes of the GPIO signal (integer bitfield). + + == ======================= + 0 Signal is active low. + 1 Signal is active high. + == ======================= + +What: /sys/bus/platform/devices/GGL0001:*/GPIO.X/GPIO.2 +Date: May 2022 +KernelVersion: 5.19 +Description: + Returns the GPIO number on the specified GPIO + controller. + +What: /sys/bus/platform/devices/GGL0001:*/GPIO.X/GPIO.3 +Date: May 2022 +KernelVersion: 5.19 +Description: + Returns name of the GPIO controller. + +What: /sys/bus/platform/devices/GGL0001:*/HWID +Date: May 2022 +KernelVersion: 5.19 +Description: + Returns hardware ID for the Chromebook. + +What: /sys/bus/platform/devices/GGL0001:*/MECK +Date: May 2022 +KernelVersion: 5.19 +Description: + Returns the SHA-1 or SHA-256 hash that is read out of the + Management Engine extended registers during boot. The hash + is exported via ACPI so the OS can verify that the Management + Engine firmware has not changed. If Management Engine is not + present, or if the firmware was unable to read the extended registers, this buffer size can be zero. + +What: /sys/bus/platform/devices/GGL0001:*/VBNV.0 +Date: May 2022 +KernelVersion: 5.19 +Description: + Returns offset in CMOS bank 0 of the verified boot non-volatile + storage block, counting from the first writable CMOS byte + (that is, 'offset = 0' is the byte following the 14 bytes of + clock data). + +What: /sys/bus/platform/devices/GGL0001:*/VBNV.1 +Date: May 2022 +KernelVersion: 5.19 +Description: + Return the size in bytes of the verified boot non-volatile + storage block. + +What: /sys/bus/platform/devices/GGL0001:*/VDAT +Date: May 2022 +KernelVersion: 5.19 +Description: + Returns the verified boot data block shared between the + firmware verification step and the kernel verification step + (binary). diff --git a/Documentation/ABI/testing/sysfs-driver-eud b/Documentation/ABI/testing/sysfs-driver-eud new file mode 100644 index 000000000000..83f3872182a4 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-eud @@ -0,0 +1,9 @@ +What: /sys/bus/platform/drivers/eud/.../enable +Date: February 2022 +Contact: Souradeep Chowdhury <quic_schowdhu@quicinc.com> +Description: + The Enable/Disable sysfs interface for Embedded + USB Debugger(EUD). This enables and disables the + EUD based on a 1 or a 0 value. By enabling EUD, + the user is able to activate the mini-usb hub of + EUD for debug and trace capabilities. diff --git a/Documentation/ABI/testing/sysfs-driver-habanalabs b/Documentation/ABI/testing/sysfs-driver-habanalabs index 1f127f71d2b4..96646fb2e7a1 100644 --- a/Documentation/ABI/testing/sysfs-driver-habanalabs +++ b/Documentation/ABI/testing/sysfs-driver-habanalabs @@ -69,6 +69,12 @@ KernelVersion: 5.1 Contact: ogabbay@kernel.org Description: Displays the device's version from the eFuse +What: /sys/class/habanalabs/hl<n>/fw_os_ver +Date: Dec 2021 +KernelVersion: 5.18 +Contact: ogabbay@kernel.org +Description: Version of the firmware OS running on the device's CPU + What: /sys/class/habanalabs/hl<n>/hard_reset Date: Jan 2019 KernelVersion: 5.1 @@ -115,7 +121,7 @@ What: /sys/class/habanalabs/hl<n>/infineon_ver Date: Jan 2019 KernelVersion: 5.1 Contact: ogabbay@kernel.org -Description: Version of the Device's power supply F/W code +Description: Version of the Device's power supply F/W code. Relevant only to GOYA and GAUDI What: /sys/class/habanalabs/hl<n>/max_power Date: Jan 2019 @@ -220,4 +226,10 @@ What: /sys/class/habanalabs/hl<n>/uboot_ver Date: Jan 2019 KernelVersion: 5.1 Contact: ogabbay@kernel.org -Description: Version of the u-boot running on the device's CPU
\ No newline at end of file +Description: Version of the u-boot running on the device's CPU + +What: /sys/class/habanalabs/hl<n>/vrm_ver +Date: Jan 2022 +KernelVersion: not yet upstreamed +Contact: ogabbay@kernel.org +Description: Version of the Device's Voltage Regulator Monitor F/W code. N/A to GOYA and GAUDI diff --git a/Documentation/ABI/testing/sysfs-driver-intel_sdsi b/Documentation/ABI/testing/sysfs-driver-intel_sdsi new file mode 100644 index 000000000000..96b92c105ec4 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-intel_sdsi @@ -0,0 +1,79 @@ +What: /sys/bus/auxiliary/devices/intel_vsec.sdsi.X +Date: Feb 2022 +KernelVersion: 5.18 +Contact: "David E. Box" <david.e.box@linux.intel.com> +Description: + This directory contains interface files for accessing Intel + Software Defined Silicon (SDSi) features on a CPU. X + represents the socket instance (though not the socket ID). + The socket ID is determined by reading the registers file + and decoding it per the specification. + + Some files communicate with SDSi hardware through a mailbox. + Should the operation fail, one of the following error codes + may be returned: + + ========== ===== + Error Code Cause + ========== ===== + EIO General mailbox failure. Log may indicate cause. + EBUSY Mailbox is owned by another agent. + EPERM SDSI capability is not enabled in hardware. + EPROTO Failure in mailbox protocol detected by driver. + See log for details. + EOVERFLOW For provision commands, the size of the data + exceeds what may be written. + ESPIPE Seeking is not allowed. + ETIMEDOUT Failure to complete mailbox transaction in time. + ========== ===== + +What: /sys/bus/auxiliary/devices/intel_vsec.sdsi.X/guid +Date: Feb 2022 +KernelVersion: 5.18 +Contact: "David E. Box" <david.e.box@linux.intel.com> +Description: + (RO) The GUID for the registers file. The GUID identifies + the layout of the registers file in this directory. + Information about the register layouts for a particular GUID + is available at http://github.com/intel/intel-sdsi + +What: /sys/bus/auxiliary/devices/intel_vsec.sdsi.X/registers +Date: Feb 2022 +KernelVersion: 5.18 +Contact: "David E. Box" <david.e.box@linux.intel.com> +Description: + (RO) Contains information needed by applications to provision + a CPU and monitor status information. The layout of this file + is determined by the GUID in this directory. Information about + the layout for a particular GUID is available at + http://github.com/intel/intel-sdsi + +What: /sys/bus/auxiliary/devices/intel_vsec.sdsi.X/provision_akc +Date: Feb 2022 +KernelVersion: 5.18 +Contact: "David E. Box" <david.e.box@linux.intel.com> +Description: + (WO) Used to write an Authentication Key Certificate (AKC) to + the SDSi NVRAM for the CPU. The AKC is used to authenticate a + Capability Activation Payload. Mailbox command. + +What: /sys/bus/auxiliary/devices/intel_vsec.sdsi.X/provision_cap +Date: Feb 2022 +KernelVersion: 5.18 +Contact: "David E. Box" <david.e.box@linux.intel.com> +Description: + (WO) Used to write a Capability Activation Payload (CAP) to the + SDSi NVRAM for the CPU. CAPs are used to activate a given CPU + feature. A CAP is validated by SDSi hardware using a previously + provisioned AKC file. Upon successful authentication, the CPU + configuration is updated. A cold reboot is required to fully + activate the feature. Mailbox command. + +What: /sys/bus/auxiliary/devices/intel_vsec.sdsi.X/state_certificate +Date: Feb 2022 +KernelVersion: 5.18 +Contact: "David E. Box" <david.e.box@linux.intel.com> +Description: + (RO) Used to read back the current State Certificate for the CPU + from SDSi hardware. The State Certificate contains information + about the current licenses on the CPU. Mailbox command. diff --git a/Documentation/ABI/testing/sysfs-driver-ufs b/Documentation/ABI/testing/sysfs-driver-ufs index a44ef8bfbadf..6b248abb1bd7 100644 --- a/Documentation/ABI/testing/sysfs-driver-ufs +++ b/Documentation/ABI/testing/sysfs-driver-ufs @@ -1518,7 +1518,7 @@ Description: This entry shows the number of reads that cannot be changed to The file is read only. -What: /sys/class/scsi_device/*/device/hpb_stats/rb_noti_cnt +What: /sys/class/scsi_device/*/device/hpb_stats/rcmd_noti_cnt Date: June 2021 Contact: Daejun Park <daejun7.park@samsung.com> Description: This entry shows the number of response UPIUs that has @@ -1526,19 +1526,23 @@ Description: This entry shows the number of response UPIUs that has The file is read only. -What: /sys/class/scsi_device/*/device/hpb_stats/rb_active_cnt +What: /sys/class/scsi_device/*/device/hpb_stats/rcmd_active_cnt Date: June 2021 Contact: Daejun Park <daejun7.park@samsung.com> -Description: This entry shows the number of active sub-regions recommended by - response UPIUs. +Description: For the HPB device control mode, this entry shows the number of + active sub-regions recommended by response UPIUs. For the HPB host control + mode, this entry shows the number of active sub-regions recommended by the + HPB host control mode heuristic algorithm. The file is read only. -What: /sys/class/scsi_device/*/device/hpb_stats/rb_inactive_cnt +What: /sys/class/scsi_device/*/device/hpb_stats/rcmd_inactive_cnt Date: June 2021 Contact: Daejun Park <daejun7.park@samsung.com> -Description: This entry shows the number of inactive regions recommended by - response UPIUs. +Description: For the HPB device control mode, this entry shows the number of + inactive regions recommended by response UPIUs. For the HPB host control + mode, this entry shows the number of inactive regions recommended by the + HPB host control mode heuristic algorithm. The file is read only. diff --git a/Documentation/ABI/testing/sysfs-driver-xen-blkback b/Documentation/ABI/testing/sysfs-driver-xen-blkback index a74dfe52dd76..7faf719af165 100644 --- a/Documentation/ABI/testing/sysfs-driver-xen-blkback +++ b/Documentation/ABI/testing/sysfs-driver-xen-blkback @@ -29,7 +29,7 @@ Description: What: /sys/module/xen_blkback/parameters/buffer_squeeze_duration_ms Date: December 2019 KernelVersion: 5.6 -Contact: SeongJae Park <sj@kernel.org> +Contact: Maximilian Heyne <mheyne@amazon.de> Description: When memory pressure is reported to blkback this option controls the duration in milliseconds that blkback will not @@ -39,7 +39,7 @@ Description: What: /sys/module/xen_blkback/parameters/feature_persistent Date: September 2020 KernelVersion: 5.10 -Contact: SeongJae Park <sj@kernel.org> +Contact: Maximilian Heyne <mheyne@amazon.de> Description: Whether to enable the persistent grants feature or not. Note that this option only takes effect on newly created backends. diff --git a/Documentation/ABI/testing/sysfs-driver-xen-blkfront b/Documentation/ABI/testing/sysfs-driver-xen-blkfront index 61fd173fabfe..7f646c58832e 100644 --- a/Documentation/ABI/testing/sysfs-driver-xen-blkfront +++ b/Documentation/ABI/testing/sysfs-driver-xen-blkfront @@ -12,7 +12,7 @@ Description: What: /sys/module/xen_blkfront/parameters/feature_persistent Date: September 2020 KernelVersion: 5.10 -Contact: SeongJae Park <sj@kernel.org> +Contact: Maximilian Heyne <mheyne@amazon.de> Description: Whether to enable the persistent grants feature or not. Note that this option only takes effect on newly created frontends. diff --git a/Documentation/ABI/testing/sysfs-firmware-papr-energy-scale-info b/Documentation/ABI/testing/sysfs-firmware-papr-energy-scale-info new file mode 100644 index 000000000000..141a6b371469 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-firmware-papr-energy-scale-info @@ -0,0 +1,29 @@ +What: /sys/firmware/papr/energy_scale_info +Date: February 2022 +Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org> +Description: Directory hosting a set of platform attributes like + energy/frequency on Linux running as a PAPR guest. + + Each file in a directory contains a platform + attribute hierarchy pertaining to performance/ + energy-savings mode and processor frequency. + +What: /sys/firmware/papr/energy_scale_info/<id> +Date: February 2022 +Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org> +Description: Energy, frequency attributes directory for POWERVM servers + +What: /sys/firmware/papr/energy_scale_info/<id>/desc +Date: February 2022 +Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org> +Description: String description of the energy attribute of <id> + +What: /sys/firmware/papr/energy_scale_info/<id>/value +Date: February 2022 +Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org> +Description: Numeric value of the energy attribute of <id> + +What: /sys/firmware/papr/energy_scale_info/<id>/value_desc +Date: February 2022 +Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org> +Description: String value of the energy attribute of <id> diff --git a/Documentation/ABI/testing/sysfs-fs-erofs b/Documentation/ABI/testing/sysfs-fs-erofs index 05482374a741..bb4681a01811 100644 --- a/Documentation/ABI/testing/sysfs-fs-erofs +++ b/Documentation/ABI/testing/sysfs-fs-erofs @@ -9,8 +9,9 @@ Description: Shows all enabled kernel features. What: /sys/fs/erofs/<disk>/sync_decompress Date: November 2021 Contact: "Huang Jianan" <huangjianan@oppo.com> -Description: Control strategy of sync decompression +Description: Control strategy of sync decompression: + - 0 (default, auto): enable for readpage, and enable for - readahead on atomic contexts only, + readahead on atomic contexts only. - 1 (force on): enable for readpage and readahead. - 2 (force off): disable for all situations. diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index 2416b03ff283..9b583dd0298b 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -55,8 +55,9 @@ Description: Controls the in-place-update policy. 0x04 F2FS_IPU_UTIL 0x08 F2FS_IPU_SSR_UTIL 0x10 F2FS_IPU_FSYNC - 0x20 F2FS_IPU_ASYNC, + 0x20 F2FS_IPU_ASYNC 0x40 F2FS_IPU_NOCACHE + 0x80 F2FS_IPU_HONOR_OPU_WRITE ==== ================= Refer segment.h for details. @@ -98,6 +99,33 @@ Description: Controls the issue rate of discard commands that consist of small checkpoint is triggered, and issued during the checkpoint. By default, it is disabled with 0. +What: /sys/fs/f2fs/<disk>/max_discard_request +Date: December 2021 +Contact: "Konstantin Vyshetsky" <vkon@google.com> +Description: Controls the number of discards a thread will issue at a time. + Higher number will allow the discard thread to finish its work + faster, at the cost of higher latency for incomming I/O. + +What: /sys/fs/f2fs/<disk>/min_discard_issue_time +Date: December 2021 +Contact: "Konstantin Vyshetsky" <vkon@google.com> +Description: Controls the interval the discard thread will wait between + issuing discard requests when there are discards to be issued and + no I/O aware interruptions occur. + +What: /sys/fs/f2fs/<disk>/mid_discard_issue_time +Date: December 2021 +Contact: "Konstantin Vyshetsky" <vkon@google.com> +Description: Controls the interval the discard thread will wait between + issuing discard requests when there are discards to be issued and + an I/O aware interruption occurs. + +What: /sys/fs/f2fs/<disk>/max_discard_issue_time +Date: December 2021 +Contact: "Konstantin Vyshetsky" <vkon@google.com> +Description: Controls the interval the discard thread will wait when there are + no discard operations to be issued. + What: /sys/fs/f2fs/<disk>/discard_granularity Date: July 2017 Contact: "Chao Yu" <yuchao0@huawei.com> @@ -269,11 +297,16 @@ Description: Shows current reserved blocks in system, it may be temporarily What: /sys/fs/f2fs/<disk>/gc_urgent Date: August 2017 Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> -Description: Do background GC aggressively when set. When gc_urgent = 1, - background thread starts to do GC by given gc_urgent_sleep_time - interval. When gc_urgent = 2, F2FS will lower the bar of - checking idle in order to process outstanding discard commands - and GC a little bit aggressively. It is set to 0 by default. +Description: Do background GC aggressively when set. Set to 0 by default. + gc urgent high(1): does GC forcibly in a period of given + gc_urgent_sleep_time and ignores I/O idling check. uses greedy + GC approach and turns SSR mode on. + gc urgent low(2): lowers the bar of checking I/O idling in + order to process outstanding discard commands and GC a + little bit aggressively. uses cost benefit GC approach. + gc urgent mid(3): does GC forcibly in a period of given + gc_urgent_sleep_time and executes a mid level of I/O idling check. + uses cost benefit GC approach. What: /sys/fs/f2fs/<disk>/gc_urgent_sleep_time Date: August 2017 @@ -430,6 +463,7 @@ Description: Show status of f2fs superblock in real time. 0x800 SBI_QUOTA_SKIP_FLUSH skip flushing quota in current CP 0x1000 SBI_QUOTA_NEED_REPAIR quota file may be corrupted 0x2000 SBI_IS_RESIZEFS resizefs is in process + 0x4000 SBI_IS_FREEZING freefs is in process ====== ===================== ================================= What: /sys/fs/f2fs/<disk>/ckpt_thread_ioprio @@ -503,7 +537,7 @@ Date: July 2021 Contact: "Daeho Jeong" <daehojeong@google.com> Description: Show how many segments have been reclaimed by GC during a specific GC mode (0: GC normal, 1: GC idle CB, 2: GC idle greedy, - 3: GC idle AT, 4: GC urgent high, 5: GC urgent low) + 3: GC idle AT, 4: GC urgent high, 5: GC urgent low 6: GC urgent mid) You can re-initialize this value to "0". What: /sys/fs/f2fs/<disk>/gc_segment_mode @@ -540,3 +574,9 @@ Contact: "Daeho Jeong" <daehojeong@google.com> Description: You can set the trial count limit for GC urgent high mode with this value. If GC thread gets to the limit, the mode will turn back to GC normal mode. By default, the value is zero, which means there is no limit like before. + +What: /sys/fs/f2fs/<disk>/max_roll_forward_node_blocks +Date: January 2022 +Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> +Description: Controls max # of node block writes to be used for roll forward + recovery. This can limit the roll forward recovery time. diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-damon b/Documentation/ABI/testing/sysfs-kernel-mm-damon new file mode 100644 index 000000000000..08b9df323560 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-kernel-mm-damon @@ -0,0 +1,285 @@ +what: /sys/kernel/mm/damon/ +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Interface for Data Access MONitoring (DAMON). Contains files + for controlling DAMON. For more details on DAMON itself, + please refer to Documentation/admin-guide/mm/damon/index.rst. + +What: /sys/kernel/mm/damon/admin/ +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Interface for privileged users of DAMON. Contains files for + controlling DAMON that aimed to be used by privileged users. + +What: /sys/kernel/mm/damon/admin/kdamonds/nr_kdamonds +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing a number 'N' to this file creates the number of + directories for controlling each DAMON worker thread (kdamond) + named '0' to 'N-1' under the kdamonds/ directory. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/state +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing 'on' or 'off' to this file makes the kdamond starts or + stops, respectively. Reading the file returns the keywords + based on the current status. Writing 'commit' to this file + makes the kdamond reads the user inputs in the sysfs files + except 'state' again. Writing 'update_schemes_stats' to the + file updates contents of schemes stats files of the kdamond. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/pid +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Reading this file returns the pid of the kdamond if it is + running. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/nr_contexts +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing a number 'N' to this file creates the number of + directories for controlling each DAMON context named '0' to + 'N-1' under the contexts/ directory. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/avail_operations +Date: Apr 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Reading this file returns the available monitoring operations + sets on the currently running kernel. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/operations +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing a keyword for a monitoring operations set ('vaddr' for + virtual address spaces monitoring, 'fvaddr' for fixed virtual + address ranges monitoring, and 'paddr' for the physical address + space monitoring) to this file makes the context to use the + operations set. Reading the file returns the keyword for the + operations set the context is set to use. + + Note that only the operations sets that listed in + 'avail_operations' file are valid inputs. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/intervals/sample_us +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing a value to this file sets the sampling interval of the + DAMON context in microseconds as the value. Reading this file + returns the value. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/intervals/aggr_us +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing a value to this file sets the aggregation interval of + the DAMON context in microseconds as the value. Reading this + file returns the value. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/intervals/update_us +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing a value to this file sets the update interval of the + DAMON context in microseconds as the value. Reading this file + returns the value. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/nr_regions/min + +WDate: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing a value to this file sets the minimum number of + monitoring regions of the DAMON context as the value. Reading + this file returns the value. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/nr_regions/max +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing a value to this file sets the maximum number of + monitoring regions of the DAMON context as the value. Reading + this file returns the value. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/targets/nr_targets +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing a number 'N' to this file creates the number of + directories for controlling each DAMON target of the context + named '0' to 'N-1' under the contexts/ directory. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/targets/<T>/pid_target +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing to and reading from this file sets and gets the pid of + the target process if the context is for virtual address spaces + monitoring, respectively. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/targets/<T>/regions/nr_regions +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing a number 'N' to this file creates the number of + directories for setting each DAMON target memory region of the + context named '0' to 'N-1' under the regions/ directory. In + case of the virtual address space monitoring, DAMON + automatically sets the target memory region based on the target + processes' mappings. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/targets/<T>/regions/<R>/start +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing to and reading from this file sets and gets the start + address of the monitoring region. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/targets/<T>/regions/<R>/end +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing to and reading from this file sets and gets the end + address of the monitoring region. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/nr_schemes +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing a number 'N' to this file creates the number of + directories for controlling each DAMON-based operation scheme + of the context named '0' to 'N-1' under the schemes/ directory. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/action +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing to and reading from this file sets and gets the action + of the scheme. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/sz/min +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing to and reading from this file sets and gets the mimimum + size of the scheme's target regions in bytes. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/sz/max +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing to and reading from this file sets and gets the maximum + size of the scheme's target regions in bytes. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/nr_accesses/min +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing to and reading from this file sets and gets the manimum + 'nr_accesses' of the scheme's target regions. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/nr_accesses/max +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing to and reading from this file sets and gets the maximum + 'nr_accesses' of the scheme's target regions. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/age/min +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing to and reading from this file sets and gets the minimum + 'age' of the scheme's target regions. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/age/max +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing to and reading from this file sets and gets the maximum + 'age' of the scheme's target regions. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/ms +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing to and reading from this file sets and gets the time + quota of the scheme in milliseconds. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/bytes +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing to and reading from this file sets and gets the size + quota of the scheme in bytes. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/reset_interval_ms +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing to and reading from this file sets and gets the quotas + charge reset interval of the scheme in milliseconds. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/weights/sz_permil +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing to and reading from this file sets and gets the + under-quota limit regions prioritization weight for 'size' in + permil. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/weights/nr_accesses_permil +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing to and reading from this file sets and gets the + under-quota limit regions prioritization weight for + 'nr_accesses' in permil. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/weights/age_permil +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing to and reading from this file sets and gets the + under-quota limit regions prioritization weight for 'age' in + permil. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/watermarks/metric +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing to and reading from this file sets and gets the metric + of the watermarks for the scheme. The writable/readable + keywords for this file are 'none' for disabling the watermarks + feature, or 'free_mem_rate' for the system's global free memory + rate in permil. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/watermarks/interval_us +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing to and reading from this file sets and gets the metric + check interval of the watermarks for the scheme in + microseconds. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/watermarks/high +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing to and reading from this file sets and gets the high + watermark of the scheme in permil. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/watermarks/mid +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing to and reading from this file sets and gets the mid + watermark of the scheme in permil. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/watermarks/low +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing to and reading from this file sets and gets the low + watermark of the scheme in permil. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/nr_tried +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Reading this file returns the number of regions that the action + of the scheme has tried to be applied. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/sz_tried +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Reading this file returns the total size of regions that the + action of the scheme has tried to be applied in bytes. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/nr_applied +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Reading this file returns the number of regions that the action + of the scheme has successfully applied. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/sz_applied +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Reading this file returns the total size of regions that the + action of the scheme has successfully applied in bytes. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/qt_exceeds +Date: Mar 2022 +Contact: SeongJae Park <sj@kernel.org> +Description: Reading this file returns the number of the exceed events of + the scheme's quotas. diff --git a/Documentation/ABI/testing/sysfs-mce b/Documentation/ABI/testing/sysfs-mce index c8cd989034b4..83172f50e27c 100644 --- a/Documentation/ABI/testing/sysfs-mce +++ b/Documentation/ABI/testing/sysfs-mce @@ -53,38 +53,6 @@ Description: (but some corrected errors might be still reported in other ways) -What: /sys/devices/system/machinecheck/machinecheckX/tolerant -Contact: Andi Kleen <ak@linux.intel.com> -Date: Feb, 2007 -Description: - The entries appear for each CPU, but they are truly shared - between all CPUs. - - Tolerance level. When a machine check exception occurs for a - non corrected machine check the kernel can take different - actions. - - Since machine check exceptions can happen any time it is - sometimes risky for the kernel to kill a process because it - defies normal kernel locking rules. The tolerance level - configures how hard the kernel tries to recover even at some - risk of deadlock. Higher tolerant values trade potentially - better uptime with the risk of a crash or even corruption - (for tolerant >= 3). - - == =========================================================== - 0 always panic on uncorrected errors, log corrected errors - 1 panic or SIGBUS on uncorrected errors, log corrected errors - 2 SIGBUS or log uncorrected errors, log corrected errors - 3 never panic or SIGBUS, log all errors (for testing only) - == =========================================================== - - Default: 1 - - Note this only makes a difference if the CPU allows recovery - from a machine check exception. Current x86 CPUs generally - do not. - What: /sys/devices/system/machinecheck/machinecheckX/trigger Contact: Andi Kleen <ak@linux.intel.com> Date: Feb, 2007 diff --git a/Documentation/ABI/testing/sysfs-platform-intel-ifs b/Documentation/ABI/testing/sysfs-platform-intel-ifs new file mode 100644 index 000000000000..486d6d2ff8a0 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-platform-intel-ifs @@ -0,0 +1,39 @@ +What: /sys/devices/virtual/misc/intel_ifs_<N>/run_test +Date: April 21 2022 +KernelVersion: 5.19 +Contact: "Jithu Joseph" <jithu.joseph@intel.com> +Description: Write <cpu#> to trigger IFS test for one online core. + Note that the test is per core. The cpu# can be + for any thread on the core. Running on one thread + completes the test for the core containing that thread. + Example: to test the core containing cpu5: echo 5 > + /sys/devices/platform/intel_ifs.<N>/run_test + +What: /sys/devices/virtual/misc/intel_ifs_<N>/status +Date: April 21 2022 +KernelVersion: 5.19 +Contact: "Jithu Joseph" <jithu.joseph@intel.com> +Description: The status of the last test. It can be one of "pass", "fail" + or "untested". + +What: /sys/devices/virtual/misc/intel_ifs_<N>/details +Date: April 21 2022 +KernelVersion: 5.19 +Contact: "Jithu Joseph" <jithu.joseph@intel.com> +Description: Additional information regarding the last test. The details file reports + the hex value of the SCAN_STATUS MSR. Note that the error_code field + may contain driver defined software code not defined in the Intel SDM. + +What: /sys/devices/virtual/misc/intel_ifs_<N>/image_version +Date: April 21 2022 +KernelVersion: 5.19 +Contact: "Jithu Joseph" <jithu.joseph@intel.com> +Description: Version (hexadecimal) of loaded IFS binary image. If no scan image + is loaded reports "none". + +What: /sys/devices/virtual/misc/intel_ifs_<N>/reload +Date: April 21 2022 +KernelVersion: 5.19 +Contact: "Jithu Joseph" <jithu.joseph@intel.com> +Description: Write "1" (or "y" or "Y") to reload the IFS image from + /lib/firmware/intel/ifs/ff-mm-ss.scan. diff --git a/Documentation/ABI/testing/sysfs-platform-lg-laptop b/Documentation/ABI/testing/sysfs-platform-lg-laptop index cf47749b19df..0570cd524d0e 100644 --- a/Documentation/ABI/testing/sysfs-platform-lg-laptop +++ b/Documentation/ABI/testing/sysfs-platform-lg-laptop @@ -17,6 +17,7 @@ Date: October 2018 KernelVersion: 4.20 Contact: "Matan Ziv-Av <matan@svgalib.org> Description: + Deprecated use /sys/class/power_supply/CMB0/charge_control_end_threshold Maximal battery charge level. Accepted values are 80 or 100. What: /sys/devices/platform/lg-laptop/fan_mode diff --git a/Documentation/ABI/testing/sysfs-timecard b/Documentation/ABI/testing/sysfs-timecard index 97f6773794a5..220478156297 100644 --- a/Documentation/ABI/testing/sysfs-timecard +++ b/Documentation/ABI/testing/sysfs-timecard @@ -37,8 +37,15 @@ Description: (RO) Set of available destinations (sinks) for a SMA PPS2 signal is sent to the PPS2 selector TS1 signal is sent to timestamper 1 TS2 signal is sent to timestamper 2 + TS3 signal is sent to timestamper 3 + TS4 signal is sent to timestamper 4 IRIG signal is sent to the IRIG-B module DCF signal is sent to the DCF module + FREQ1 signal is sent to frequency counter 1 + FREQ2 signal is sent to frequency counter 2 + FREQ3 signal is sent to frequency counter 3 + FREQ4 signal is sent to frequency counter 4 + None signal input is disabled ===== ================================================ What: /sys/class/timecard/ocpN/available_sma_outputs @@ -50,10 +57,16 @@ Description: (RO) Set of available sources for a SMA output signal. 10Mhz output is from the 10Mhz reference clock PHC output PPS is from the PHC clock MAC output PPS is from the Miniature Atomic Clock - GNSS output PPS is from the GNSS module + GNSS1 output PPS is from the first GNSS module GNSS2 output PPS is from the second GNSS module IRIG output is from the PHC, in IRIG-B format DCF output is from the PHC, in DCF format + GEN1 output is from frequency generator 1 + GEN2 output is from frequency generator 2 + GEN3 output is from frequency generator 3 + GEN4 output is from frequency generator 4 + GND output is GND + VCC output is VCC ===== ================================================ What: /sys/class/timecard/ocpN/clock_source @@ -63,6 +76,97 @@ Description: (RW) Contains the current synchronization source used by the PHC. May be changed by writing one of the listed values from the available_clock_sources attribute set. +What: /sys/class/timecard/ocpN/clock_status_drift +Date: March 2022 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RO) Contains the current drift value used by the firmware + for internal disciplining of the atomic clock. + +What: /sys/class/timecard/ocpN/clock_status_offset +Date: March 2022 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RO) Contains the current offset value used by the firmware + for internal disciplining of the atomic clock. + +What: /sys/class/timecard/ocpN/freqX +Date: March 2022 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RO) Optional directory containing the sysfs nodes for + frequency counter <X>. + +What: /sys/class/timecard/ocpN/freqX/frequency +Date: March 2022 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RO) Contains the measured frequency over the specified + measurement period. + +What: /sys/class/timecard/ocpN/freqX/seconds +Date: March 2022 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RW) Specifies the number of seconds from 0-255 that the + frequency should be measured over. Write 0 to disable. + +What: /sys/class/timecard/ocpN/genX +Date: March 2022 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RO) Optional directory containing the sysfs nodes for + frequency generator <X>. + +What: /sys/class/timecard/ocpN/genX/duty +Date: March 2022 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RO) Specifies the signal duty cycle as a percentage from 1-99. + +What: /sys/class/timecard/ocpN/genX/period +Date: March 2022 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RO) Specifies the signal period in nanoseconds. + +What: /sys/class/timecard/ocpN/genX/phase +Date: March 2022 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RO) Specifies the signal phase offset in nanoseconds. + +What: /sys/class/timecard/ocpN/genX/polarity +Date: March 2022 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RO) Specifies the signal polarity, either 1 or 0. + +What: /sys/class/timecard/ocpN/genX/running +Date: March 2022 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RO) Either 0 or 1, showing if the signal generator is running. + +What: /sys/class/timecard/ocpN/genX/start +Date: March 2022 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RO) Shows the time in <sec>.<nsec> that the signal generator + started running. + +What: /sys/class/timecard/ocpN/genX/signal +Date: March 2022 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RW) Used to start the signal generator, and summarize + the current status. + + The signal generator may be started by writing the signal + period, followed by the optional signal values. If the + optional values are not provided, they default to the current + settings, which may be obtained from the other sysfs nodes. + + period [duty [phase [polarity]]] + + echo 500000000 > signal # 1/2 second period + echo 1000000 40 100 > signal + echo 0 > signal # turn off generator + + Period and phase are specified in nanoseconds. Duty cycle is + a percentage from 1-99. Polarity is 1 or 0. + + Reading this node will return: + + period duty phase polarity start_time + What: /sys/class/timecard/ocpN/gnss_sync Date: September 2021 Contact: Jonathan Lemon <jonathan.lemon@gmail.com> @@ -126,6 +230,16 @@ Description: (RW) These attributes specify the direction of the signal The 10Mhz reference clock input is currently only valid on SMA1 and may not be combined with other destination sinks. +What: /sys/class/timecard/ocpN/tod_correction +Date: March 2022 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RW) The incoming GNSS signal is in UTC time, and the NMEA + format messages do not provide a TAI offset. This sets the + correction value for the incoming time. + + If UBX_LS is enabled, this should be 0, and the offset is + taken from the UBX-NAV-TIMELS message. + What: /sys/class/timecard/ocpN/ts_window_adjust Date: September 2021 Contact: Jonathan Lemon <jonathan.lemon@gmail.com> |