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Merge tag 'char-misc-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH: "Here is the big set of various smaller driver subsystem updates for 5.13-rc1. Major bits in here are: - habanalabs driver updates - hwtracing driver updates - interconnect driver updates - mhi driver updates - extcon driver updates - fpga driver updates - new binder features added - nvmem driver updates - phy driver updates - soundwire driver updates - smaller misc and char driver fixes and updates. - bluetooth driver bugfix that maintainer wanted to go through this tree. All of these have been in linux-next with no reported issues" * tag 'char-misc-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (330 commits) bluetooth: eliminate the potential race condition when removing the HCI controller coresight: etm-perf: Fix define build issue when built as module phy: Revert "phy: ti: j721e-wiz: add missing of_node_put" phy: ti: j721e-wiz: Add missing include linux/slab.h phy: phy-twl4030-usb: Fix possible use-after-free in twl4030_usb_remove() stm class: Use correct UUID APIs intel_th: pci: Add Alder Lake-M support intel_th: pci: Add Rocket Lake CPU support intel_th: Consistency and off-by-one fix intel_th: Constify attribute_group structs intel_th: Constify all drvdata references stm class: Remove an unused function habanalabs/gaudi: Fix uninitialized return code rc when read size is zero greybus: es2: fix kernel-doc warnings mei: me: add Alder Lake P device id. dw-xdata-pcie: Update outdated info and improve text format dw-xdata-pcie: Fix documentation build warns fbdev: zero-fill colormap in fbcmap.c firmware: qcom-scm: Fix QCOM_SCM configuration speakup: i18n: Switch to kmemdup_nul() in spk_msg_set() ...
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‎Documentation/ABI/testing/debugfs-driver-habanalabs‎

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@@ -82,6 +82,24 @@ Description: Allows the root user to read or write 64 bit data directly
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If the IOMMU is disabled, it also allows the root user to read
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or write from the host a device VA of a host mapped memory
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What: /sys/kernel/debug/habanalabs/hl<n>/data_dma
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Date: Apr 2021
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KernelVersion: 5.13
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Contact: ogabbay@kernel.org
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Description: Allows the root user to read from the device's internal
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memory (DRAM/SRAM) through a DMA engine.
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This property is a binary blob that contains the result of the
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DMA transfer.
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This custom interface is needed (instead of using the generic
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Linux user-space PCI mapping) because the amount of internal
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memory is huge (>32GB) and reading it via the PCI bar will take
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a very long time.
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This interface doesn't support concurrency in the same device.
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In GAUDI and GOYA, this action can cause undefined behavior
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in case the it is done while the device is executing user
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workloads.
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Only supported on GAUDI at this stage.
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What: /sys/kernel/debug/habanalabs/hl<n>/device
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Date: Jan 2019
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KernelVersion: 5.1
@@ -90,6 +108,24 @@ Description: Enables the root user to set the device to specific state.
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Valid values are "disable", "enable", "suspend", "resume".
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User can read this property to see the valid values
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What: /sys/kernel/debug/habanalabs/hl<n>/dma_size
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Date: Apr 2021
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KernelVersion: 5.13
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Contact: ogabbay@kernel.org
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Description: Specify the size of the DMA transaction when using DMA to read
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from the device's internal memory. The value can not be larger
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than 128MB. Writing to this value initiates the DMA transfer.
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When the write is finished, the user can read the "data_dma"
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blob
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What: /sys/kernel/debug/habanalabs/hl<n>/dump_security_violations
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Date: Jan 2021
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KernelVersion: 5.12
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Contact: ogabbay@kernel.org
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Description: Dumps all security violations to dmesg. This will also ack
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all security violations meanings those violations will not be
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dumped next time user calls this API
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What: /sys/kernel/debug/habanalabs/hl<n>/engines
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Date: Jul 2019
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KernelVersion: 5.3
@@ -154,13 +190,30 @@ Description: Displays the hop values and physical address for a given ASID
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e.g. to display info about VA 0x1000 for ASID 1 you need to do:
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echo "1 0x1000" > /sys/kernel/debug/habanalabs/hl0/mmu
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What: /sys/kernel/debug/habanalabs/hl<n>/mmu_error
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Date: Mar 2021
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KernelVersion: 5.12
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Contact: fkassabri@habana.ai
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Description: Check and display page fault or access violation mmu errors for
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all MMUs specified in mmu_cap_mask.
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e.g. to display error info for MMU hw cap bit 9, you need to do:
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echo "0x200" > /sys/kernel/debug/habanalabs/hl0/mmu_error
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cat /sys/kernel/debug/habanalabs/hl0/mmu_error
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What: /sys/kernel/debug/habanalabs/hl<n>/set_power_state
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Date: Jan 2019
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KernelVersion: 5.1
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Contact: ogabbay@kernel.org
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Description: Sets the PCI power state. Valid values are "1" for D0 and "2"
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for D3Hot
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What: /sys/kernel/debug/habanalabs/hl<n>/stop_on_err
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Date: Mar 2020
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KernelVersion: 5.6
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Contact: ogabbay@kernel.org
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Description: Sets the stop-on_error option for the device engines. Value of
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"0" is for disable, otherwise enable.
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What: /sys/kernel/debug/habanalabs/hl<n>/userptr
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Date: Jan 2019
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KernelVersion: 5.1
@@ -174,19 +227,4 @@ Date: Jan 2019
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KernelVersion: 5.1
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Contact: ogabbay@kernel.org
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Description: Displays a list with information about all the active virtual
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address mappings per ASID
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What: /sys/kernel/debug/habanalabs/hl<n>/stop_on_err
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Date: Mar 2020
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KernelVersion: 5.6
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Contact: ogabbay@kernel.org
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Description: Sets the stop-on_error option for the device engines. Value of
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"0" is for disable, otherwise enable.
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What: /sys/kernel/debug/habanalabs/hl<n>/dump_security_violations
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Date: Jan 2021
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KernelVersion: 5.12
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Contact: ogabbay@kernel.org
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Description: Dumps all security violations to dmesg. This will also ack
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all security violations meanings those violations will not be
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dumped next time user calls this API
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address mappings per ASID and all user mappings of HW blocks

‎Documentation/ABI/testing/sysfs-bus-pci-devices-pvpanic‎

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@@ -1,4 +1,5 @@
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What: /sys/devices/pci0000:00/*/QEMU0001:00/capability
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What: /sys/devices/pci0000:00/*/QEMU0001:00/capability for MMIO
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/sys/bus/pci/drivers/pvpanic-pci/0000:00:0*.0/capability for PCI
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Date: Jan 2021
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Contact: zhenwei pi <pizhenwei@bytedance.com>
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Description:
@@ -12,6 +13,7 @@ Description:
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https://git.qemu.org/?p=qemu.git;a=blob_plain;f=docs/specs/pvpanic.txt
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What: /sys/devices/pci0000:00/*/QEMU0001:00/events
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/sys/bus/pci/drivers/pvpanic-pci/0000:00:0*.0/events for PCI
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Date: Jan 2021
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Contact: zhenwei pi <pizhenwei@bytedance.com>
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Description:

‎Documentation/ABI/testing/sysfs-driver-xdata‎

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What: /sys/class/misc/drivers/dw-xdata-pcie.<device>/write
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Date: April 2021
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KernelVersion: 5.13
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Contact: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
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Description: Allows the user to enable the PCIe traffic generator which
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will create write TLPs frames - from the Root Complex to the
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Endpoint direction or to disable the PCIe traffic generator
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in all directions.
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Write y/1/on to enable, n/0/off to disable
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Usage e.g.
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echo 1 > /sys/class/misc/dw-xdata-pcie.<device>/write
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or
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echo 0 > /sys/class/misc/dw-xdata-pcie.<device>/write
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The user can read the current PCIe link throughput generated
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through this generator in MB/s.
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Usage e.g.
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cat /sys/class/misc/dw-xdata-pcie.<device>/write
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204
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The file is read and write.
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What: /sys/class/misc/dw-xdata-pcie.<device>/read
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Date: April 2021
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KernelVersion: 5.13
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Contact: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
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Description: Allows the user to enable the PCIe traffic generator which
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will create read TLPs frames - from the Endpoint to the Root
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Complex direction or to disable the PCIe traffic generator
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in all directions.
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Write y/1/on to enable, n/0/off to disable
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Usage e.g.
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echo 1 > /sys/class/misc/dw-xdata-pcie.<device>/read
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or
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echo 0 > /sys/class/misc/dw-xdata-pcie.<device>/read
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The user can read the current PCIe link throughput generated
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through this generator in MB/s.
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Usage e.g.
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cat /sys/class/misc/dw-xdata-pcie.<device>/read
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199
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The file is read and write.

‎Documentation/devicetree/bindings/extcon/qcom,pm8941-misc.txt‎

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This file was deleted.

‎Documentation/devicetree/bindings/extcon/qcom,pm8941-misc.yaml‎

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/extcon/qcom,pm8941-misc.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Qualcomm Technologies, Inc. PM8941 USB ID Extcon device
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maintainers:
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- Guru Das Srinagesh <gurus@codeaurora.org>
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description: |
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Some Qualcomm PMICs have a "misc" module that can be used to detect when
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the USB ID pin has been pulled low or high.
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properties:
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compatible:
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items:
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- const: qcom,pm8941-misc
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reg:
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maxItems: 1
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interrupts:
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minItems: 1
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maxItems: 2
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interrupt-names:
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minItems: 1
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items:
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- const: usb_id
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- const: usb_vbus
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required:
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- compatible
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- reg
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- interrupts
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- interrupt-names
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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pmic {
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#address-cells = <1>;
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#size-cells = <0>;
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interrupt-controller;
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#interrupt-cells = <4>;
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usb_id: misc@900 {
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compatible = "qcom,pm8941-misc";
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reg = <0x900>;
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interrupts = <0x0 0x9 0 IRQ_TYPE_EDGE_BOTH>;
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interrupt-names = "usb_id";
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};
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};
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usb-controller {
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extcon = <&usb_id>;
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};

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