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  dw-xdata-pcie: Update outdated info and improve text format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()
  ...

3 files changed, 106 insertions, 17 deletions

diff --git a/Documentation/ABI/testing/debugfs-driver-habanalabs b/Documentation/ABI/testing/debugfs-driver-habanalabs
index d447a611c41b..c78fc9282876 100644
--- a/Documentation/ABI/testing/debugfs-driver-habanalabs
+++ b/Documentation/ABI/testing/debugfs-driver-habanalabs
@@ -82,6 +82,24 @@ Description:    Allows the root user to read or write 64 bit data directly
                 If the IOMMU is disabled, it also allows the root user to read
                 or write from the host a device VA of a host mapped memory
 
+What:           /sys/kernel/debug/habanalabs/hl<n>/data_dma
+Date:           Apr 2021
+KernelVersion:  5.13
+Contact:        ogabbay@kernel.org
+Description:    Allows the root user to read from the device's internal
+                memory (DRAM/SRAM) through a DMA engine.
+                This property is a binary blob that contains the result of the
+                DMA transfer.
+                This custom interface is needed (instead of using the generic
+                Linux user-space PCI mapping) because the amount of internal
+                memory is huge (>32GB) and reading it via the PCI bar will take
+                a very long time.
+                This interface doesn't support concurrency in the same device.
+                In GAUDI and GOYA, this action can cause undefined behavior
+                in case the it is done while the device is executing user
+                workloads.
+                Only supported on GAUDI at this stage.
+
 What:           /sys/kernel/debug/habanalabs/hl<n>/device
 Date:           Jan 2019
 KernelVersion:  5.1
@@ -90,6 +108,24 @@ Description:    Enables the root user to set the device to specific state.
                 Valid values are "disable", "enable", "suspend", "resume".
                 User can read this property to see the valid values
 
+What:           /sys/kernel/debug/habanalabs/hl<n>/dma_size
+Date:           Apr 2021
+KernelVersion:  5.13
+Contact:        ogabbay@kernel.org
+Description:    Specify the size of the DMA transaction when using DMA to read
+                from the device's internal memory. The value can not be larger
+                than 128MB. Writing to this value initiates the DMA transfer.
+                When the write is finished, the user can read the "data_dma"
+                blob
+
+What:           /sys/kernel/debug/habanalabs/hl<n>/dump_security_violations
+Date:           Jan 2021
+KernelVersion:  5.12
+Contact:        ogabbay@kernel.org
+Description:    Dumps all security violations to dmesg. This will also ack
+                all security violations meanings those violations will not be
+                dumped next time user calls this API
+
 What:           /sys/kernel/debug/habanalabs/hl<n>/engines
 Date:           Jul 2019
 KernelVersion:  5.3
@@ -154,6 +190,16 @@ Description:    Displays the hop values and physical address for a given ASID
                 e.g. to display info about VA 0x1000 for ASID 1 you need to do:
                 echo "1 0x1000" > /sys/kernel/debug/habanalabs/hl0/mmu
 
+What:           /sys/kernel/debug/habanalabs/hl<n>/mmu_error
+Date:           Mar 2021
+KernelVersion:  5.12
+Contact:        fkassabri@habana.ai
+Description:    Check and display page fault or access violation mmu errors for
+                all MMUs specified in mmu_cap_mask.
+                e.g. to display error info for MMU hw cap bit 9, you need to do:
+                echo "0x200" > /sys/kernel/debug/habanalabs/hl0/mmu_error
+                cat /sys/kernel/debug/habanalabs/hl0/mmu_error
+
 What:           /sys/kernel/debug/habanalabs/hl<n>/set_power_state
 Date:           Jan 2019
 KernelVersion:  5.1
@@ -161,6 +207,13 @@ Contact:        ogabbay@kernel.org
 Description:    Sets the PCI power state. Valid values are "1" for D0 and "2"
                 for D3Hot
 
+What:           /sys/kernel/debug/habanalabs/hl<n>/stop_on_err
+Date:           Mar 2020
+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.
+
 What:           /sys/kernel/debug/habanalabs/hl<n>/userptr
 Date:           Jan 2019
 KernelVersion:  5.1
@@ -174,19 +227,4 @@ Date:           Jan 2019
 KernelVersion:  5.1
 Contact:        ogabbay@kernel.org
 Description:    Displays a list with information about all the active virtual
-                address mappings per ASID
-
-What:           /sys/kernel/debug/habanalabs/hl<n>/stop_on_err
-Date:           Mar 2020
-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.
-
-What:           /sys/kernel/debug/habanalabs/hl<n>/dump_security_violations
-Date:           Jan 2021
-KernelVersion:  5.12
-Contact:        ogabbay@kernel.org
-Description:    Dumps all security violations to dmesg. This will also ack
-                all security violations meanings those violations will not be
-                dumped next time user calls this API
+                address mappings per ASID and all user mappings of HW blocks
diff --git a/Documentation/ABI/testing/sysfs-bus-pci-devices-pvpanic b/Documentation/ABI/testing/sysfs-bus-pci-devices-pvpanic
index 1936f7324155..4ec03cd36357 100644
--- a/Documentation/ABI/testing/sysfs-bus-pci-devices-pvpanic
+++ b/Documentation/ABI/testing/sysfs-bus-pci-devices-pvpanic
@@ -1,4 +1,5 @@
-What:		/sys/devices/pci0000:00/*/QEMU0001:00/capability
+What:		/sys/devices/pci0000:00/*/QEMU0001:00/capability for MMIO
+		/sys/bus/pci/drivers/pvpanic-pci/0000:00:0*.0/capability for PCI
 Date:		Jan 2021
 Contact:	zhenwei pi <pizhenwei@bytedance.com>
 Description:
@@ -12,6 +13,7 @@ Description:
 		https://git.qemu.org/?p=qemu.git;a=blob_plain;f=docs/specs/pvpanic.txt
 
 What:		/sys/devices/pci0000:00/*/QEMU0001:00/events
+		/sys/bus/pci/drivers/pvpanic-pci/0000:00:0*.0/events for PCI
 Date:		Jan 2021
 Contact:	zhenwei pi <pizhenwei@bytedance.com>
 Description:
diff --git a/Documentation/ABI/testing/sysfs-driver-xdata b/Documentation/ABI/testing/sysfs-driver-xdata
new file mode 100644
index 000000000000..f574e8e6dca2
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-xdata
@@ -0,0 +1,49 @@
+What:		/sys/class/misc/drivers/dw-xdata-pcie.<device>/write
+Date:		April 2021
+KernelVersion:	5.13
+Contact:	Gustavo Pimentel <gustavo.pimentel@synopsys.com>
+Description:	Allows the user to enable the PCIe traffic generator which
+		will create write TLPs frames - from the Root Complex to the
+		Endpoint direction or to disable the PCIe traffic generator
+		in all directions.
+
+		Write y/1/on to enable, n/0/off to disable
+
+		Usage e.g.
+		 echo 1 > /sys/class/misc/dw-xdata-pcie.<device>/write
+		or
+		 echo 0 > /sys/class/misc/dw-xdata-pcie.<device>/write
+
+		The user can read the current PCIe link throughput generated
+		through this generator in MB/s.
+
+		Usage e.g.
+		 cat /sys/class/misc/dw-xdata-pcie.<device>/write
+		 204
+
+		The file is read and write.
+
+What:		/sys/class/misc/dw-xdata-pcie.<device>/read
+Date:		April 2021
+KernelVersion:	5.13
+Contact:	Gustavo Pimentel <gustavo.pimentel@synopsys.com>
+Description:	Allows the user to enable the PCIe traffic generator which
+		will create read TLPs frames - from the Endpoint to the Root
+		Complex direction or to disable the PCIe traffic generator
+                in all directions.
+
+		Write y/1/on to enable, n/0/off to disable
+
+		Usage e.g.
+		 echo 1 > /sys/class/misc/dw-xdata-pcie.<device>/read
+		or
+		 echo 0 > /sys/class/misc/dw-xdata-pcie.<device>/read
+
+		The user can read the current PCIe link throughput generated
+		through this generator in MB/s.
+
+		Usage e.g.
+		 cat /sys/class/misc/dw-xdata-pcie.<device>/read
+		 199
+
+		The file is read and write.