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Merge tag 'char-misc-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

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Pull char/misc driver updates from Greg KH:
 "Here is the big char/misc driver patch pull request for 5.1-rc1.

  The largest thing by far is the new habanalabs driver for their AI
  accelerator chip. For now it is in the drivers/misc directory but will
  probably move to a new directory soon along with other drivers of this
  type.

  Other than that, just the usual set of individual driver updates and
  fixes. There's an "odd" merge in here from the DRM tree that they
  asked me to do as the MEI driver is starting to interact with the i915
  driver, and it needed some coordination. All of those patches have
  been properly acked by the relevant subsystem maintainers.

  All of these have been in linux-next with no reported issues, most for
  quite some time"

* tag 'char-misc-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (219 commits)
  habanalabs: adjust Kconfig to fix build errors
  habanalabs: use %px instead of %p in error print
  habanalabs: use do_div for 64-bit divisions
  intel_th: gth: Fix an off-by-one in output unassigning
  habanalabs: fix little-endian<->cpu conversion warnings
  habanalabs: use NULL to initialize array of pointers
  habanalabs: fix little-endian<->cpu conversion warnings
  habanalabs: soft-reset device if context-switch fails
  habanalabs: print pointer using %p
  habanalabs: fix memory leak with CBs with unaligned size
  habanalabs: return correct error code on MMU mapping failure
  habanalabs: add comments in uapi/misc/habanalabs.h
  habanalabs: extend QMAN0 job timeout
  habanalabs: set DMA0 completion to SOB 1007
  habanalabs: fix validation of WREG32 to DMA completion
  habanalabs: fix mmu cache registers init
  habanalabs: disable CPU access on timeouts
  habanalabs: add MMU DRAM default page mapping
  habanalabs: Dissociate RAZWI info from event types
  misc/habanalabs: adjust Kconfig to fix build errors
  ...
This commit is contained in:
Linus Torvalds
2019-03-06 14:18:59 -08:00
parent da2577fe63 142a0f83b2
commit 45763bf4bc
315 changed files with 60754 additions and 1948 deletions
Download Patch File Download Diff File Expand all files Collapse all files

126
Documentation/ABI/testing/debugfs-driver-habanalabs Normal file
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What: /sys/kernel/debug/habanalabs/hl<n>/addr
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Sets the device address to be used for read or write through
PCI bar. The acceptable value is a string that starts with "0x"
What: /sys/kernel/debug/habanalabs/hl<n>/command_buffers
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Displays a list with information about the currently allocated
command buffers
What: /sys/kernel/debug/habanalabs/hl<n>/command_submission
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Displays a list with information about the currently active
command submissions
What: /sys/kernel/debug/habanalabs/hl<n>/command_submission_jobs
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Displays a list with detailed information about each JOB (CB) of
each active command submission
What: /sys/kernel/debug/habanalabs/hl<n>/data32
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Allows the root user to read or write directly through the
device's PCI bar. Writing to this file generates a write
transaction while reading from the file generates a read
transcation. This custom interface is needed (instead of using
the generic Linux user-space PCI mapping) because the DDR bar
is very small compared to the DDR memory and only the driver can
move the bar before and after the transaction
What: /sys/kernel/debug/habanalabs/hl<n>/device
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
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>/i2c_addr
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Sets I2C device address for I2C transaction that is generated
by the device's CPU
What: /sys/kernel/debug/habanalabs/hl<n>/i2c_bus
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Sets I2C bus address for I2C transaction that is generated by
the device's CPU
What: /sys/kernel/debug/habanalabs/hl<n>/i2c_data
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Triggers an I2C transaction that is generated by the device's
CPU. Writing to this file generates a write transaction while
reading from the file generates a read transcation
What: /sys/kernel/debug/habanalabs/hl<n>/i2c_reg
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Sets I2C register id for I2C transaction that is generated by
the device's CPU
What: /sys/kernel/debug/habanalabs/hl<n>/led0
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Sets the state of the first S/W led on the device
What: /sys/kernel/debug/habanalabs/hl<n>/led1
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Sets the state of the second S/W led on the device
What: /sys/kernel/debug/habanalabs/hl<n>/led2
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Sets the state of the third S/W led on the device
What: /sys/kernel/debug/habanalabs/hl<n>/mmu
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Displays the hop values and physical address for a given ASID
and virtual address. The user should write the ASID and VA into
the file and then read the file to get the result.
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>/set_power_state
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Sets the PCI power state. Valid values are "1" for D0 and "2"
for D3Hot
What: /sys/kernel/debug/habanalabs/hl<n>/userptr
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Displays a list with information about the currently user
pointers (user virtual addresses) that are pinned and mapped
to DMA addresses
What: /sys/kernel/debug/habanalabs/hl<n>/vm
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Displays a list with information about all the active virtual
address mappings per ASID

6
Documentation/ABI/testing/sysfs-bus-intel_th-output-devices
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@@ -3,11 +3,13 @@ Date: June 2015
KernelVersion: 4.3
Contact: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Description: (RW) Writes of 1 or 0 enable or disable trace output to this
output device. Reads return current status.
output device. Reads return current status. Requires that the
correstponding output port driver be loaded.
What: /sys/bus/intel_th/devices/<intel_th_id>-msc<msc-id>/port
Date: June 2015
KernelVersion: 4.3
Contact: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Description: (RO) Port number, corresponding to this output device on the
switch (GTH).
switch (GTH) or "unassigned" if the corresponding output
port driver is not loaded.

190
Documentation/ABI/testing/sysfs-driver-habanalabs Normal file
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What: /sys/class/habanalabs/hl<n>/armcp_kernel_ver
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Version of the Linux kernel running on the device's CPU
What: /sys/class/habanalabs/hl<n>/armcp_ver
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Version of the application running on the device's CPU
What: /sys/class/habanalabs/hl<n>/cpld_ver
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Version of the Device's CPLD F/W
What: /sys/class/habanalabs/hl<n>/device_type
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Displays the code name of the device according to its type.
The supported values are: "GOYA"
What: /sys/class/habanalabs/hl<n>/eeprom
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: A binary file attribute that contains the contents of the
on-board EEPROM
What: /sys/class/habanalabs/hl<n>/fuse_ver
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Displays the device's version from the eFuse
What: /sys/class/habanalabs/hl<n>/hard_reset
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Interface to trigger a hard-reset operation for the device.
Hard-reset will reset ALL internal components of the device
except for the PCI interface and the internal PLLs
What: /sys/class/habanalabs/hl<n>/hard_reset_cnt
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Displays how many times the device have undergone a hard-reset
operation since the driver was loaded
What: /sys/class/habanalabs/hl<n>/high_pll
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Allows the user to set the maximum clock frequency for MME, TPC
and IC when the power management profile is set to "automatic".
What: /sys/class/habanalabs/hl<n>/ic_clk
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Allows the user to set the maximum clock frequency of the
Interconnect fabric. Writes to this parameter affect the device
only when the power management profile is set to "manual" mode.
The device IC clock might be set to lower value then the
maximum. The user should read the ic_clk_curr to see the actual
frequency value of the IC
What: /sys/class/habanalabs/hl<n>/ic_clk_curr
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Displays the current clock frequency of the Interconnect fabric
What: /sys/class/habanalabs/hl<n>/infineon_ver
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Version of the Device's power supply F/W code
What: /sys/class/habanalabs/hl<n>/max_power
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Allows the user to set the maximum power consumption of the
device in milliwatts.
What: /sys/class/habanalabs/hl<n>/mme_clk
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Allows the user to set the maximum clock frequency of the
MME compute engine. Writes to this parameter affect the device
only when the power management profile is set to "manual" mode.
The device MME clock might be set to lower value then the
maximum. The user should read the mme_clk_curr to see the actual
frequency value of the MME
What: /sys/class/habanalabs/hl<n>/mme_clk_curr
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Displays the current clock frequency of the MME compute engine
What: /sys/class/habanalabs/hl<n>/pci_addr
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Displays the PCI address of the device. This is needed so the
user would be able to open a device based on its PCI address
What: /sys/class/habanalabs/hl<n>/pm_mng_profile
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Power management profile. Values are "auto", "manual". In "auto"
mode, the driver will set the maximum clock frequency to a high
value when a user-space process opens the device's file (unless
it was already opened by another process). The driver will set
the max clock frequency to a low value when there are no user
processes that are opened on the device's file. In "manual"
mode, the user sets the maximum clock frequency by writing to
ic_clk, mme_clk and tpc_clk
What: /sys/class/habanalabs/hl<n>/preboot_btl_ver
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Version of the device's preboot F/W code
What: /sys/class/habanalabs/hl<n>/soft_reset
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Interface to trigger a soft-reset operation for the device.
Soft-reset will reset only the compute and DMA engines of the
device
What: /sys/class/habanalabs/hl<n>/soft_reset_cnt
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Displays how many times the device have undergone a soft-reset
operation since the driver was loaded
What: /sys/class/habanalabs/hl<n>/status
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Status of the card: "Operational", "Malfunction", "In reset".
What: /sys/class/habanalabs/hl<n>/thermal_ver
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Version of the Device's thermal daemon
What: /sys/class/habanalabs/hl<n>/tpc_clk
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Allows the user to set the maximum clock frequency of the
TPC compute engines. Writes to this parameter affect the device
only when the power management profile is set to "manual" mode.
The device TPC clock might be set to lower value then the
maximum. The user should read the tpc_clk_curr to see the actual
frequency value of the TPC
What: /sys/class/habanalabs/hl<n>/tpc_clk_curr
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Displays the current clock frequency of the TPC compute engines
What: /sys/class/habanalabs/hl<n>/uboot_ver
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Version of the u-boot running on the device's CPU
What: /sys/class/habanalabs/hl<n>/write_open_cnt
Date: Jan 2019
KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Displays the total number of user processes that are currently
opened on the device's file