Commit 08057253 authored by Dave Airlie's avatar Dave Airlie
Browse files

Merge tag 'drm-habanalabs-next-2023-10-10' of... 

Merge tag 'drm-habanalabs-next-2023-10-10' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux

 into drm-next

This tag contains habanalabs driver changes for v6.7.

The notable changes are:

- uAPI changes:
  - Expose tsc clock sampling to better sync clock information in profiler.
  - Enhance engine error reporting in the info ioctl.
  - Block access to the eventfd operations through the control device.
  - Disable the option of the user to register multiple times with the same
    offset for timestamp dump by the driver. If a user wants to use the same
    offset in the timestamp buffer for different interrupt, it needs to first
    de-register the offset.
  - When exporting dma-buf (for p2p), force the user to specify size/offset
    in multiples of PAGE_SIZE. This is instead of the driver doing the
    rounding to PAGE_SIZE, which has caused the driver to map more memory
    than was intended by the user.

- New features and improvements:
  - Complete the move of the driver to the accel subsystem by removing the
    custom habanalabs class and major and registering to accel subsystem.
  - Move the firmware interface files to include/linux/habanalabs. This is
    a pre-requisite for upstreaming the NIC drivers of Gaudi (as they need to
    include those files).
  - Perform device hard-reset upon PCIe AXI drain event to prevent the failure
    from cascading to different IP blocks in the SoC. In secured environments,
    this is done automatically by the firmware.
  - Print device name when it is removed for better debuggability.
  - Add support for trace of dma map sgtable operations.
  - Optimize handling of user interrupts by splitting the interrupts to two
    lists. One list for fast handling and second list for handling with
    timestamp recording, which is slower.
  - Prevent double device hard-reset due to 2 adjacent H/W events.
  - Set device status 'malfunction' while in rmmod.

- Firmware related fixes:
  - Extend preboot timeout because preboot loading might take longer than
    expected in certain cases.
  - Add a protection mechanism for the Event Queue. In case it is full, the
    firmware will be able to notify about it through a dedicated interrupt.
  - Perform device hard-reset in case scrubbing of memory has failed.

- Bug fixes and code cleanups:
  - Small fixes of dma-buf handling in Gaudi2, such as handling an offset != 0,
    using the correct exported size, creation of sg table.
  - Fix spmu mask creation.
  - Fix bug in wait for cs completion for decoder workloads.
  - Cleanup Greco name from documentation.
  - Fix bug in recording timestamp during cs completion interrupt handling.
  - Fix CoreSight ETF configuration and flush logic.
  - Fix small bug in hpriv_list handling (the list that contains the private
    data per process that opens our device).

Signed-off-by: default avatarDave Airlie <airlied@redhat.com>

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From: Oded Gabbay <ogabbay@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/ZSUfiX4J7v4Wn0cU@ogabbay-vm-u22.habana-labs.com
parents 614351f4 4db74c0f

Documentation/ABI/testing/debugfs-driver-habanalabs

+41 −41
Original line number Diff line number Diff line 
What:           /sys/kernel/debug/habanalabs/hl<n>/addr

What:           /sys/kernel/debug/accel/<n>/addr

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org
@@ -8,34 +8,34 @@ Description: Sets the device address to be used for read or write through 
                only when the IOMMU is disabled.

                The acceptable value is a string that starts with "0x"



What:           /sys/kernel/debug/habanalabs/hl<n>/clk_gate

What:           /sys/kernel/debug/accel/<n>/clk_gate

Date:           May 2020

KernelVersion:  5.8

Contact:        ogabbay@kernel.org

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

What:           /sys/kernel/debug/accel/<n>/command_buffers

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

Description:    Displays a list with information about the currently allocated

                command buffers



What:           /sys/kernel/debug/habanalabs/hl<n>/command_submission

What:           /sys/kernel/debug/accel/<n>/command_submission

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

Description:    Displays a list with information about the currently active

                command submissions



What:           /sys/kernel/debug/habanalabs/hl<n>/command_submission_jobs

What:           /sys/kernel/debug/accel/<n>/command_submission_jobs

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

Description:    Displays a list with detailed information about each JOB (CB) of

                each active command submission



What:           /sys/kernel/debug/habanalabs/hl<n>/data32

What:           /sys/kernel/debug/accel/<n>/data32

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org
@@ -50,7 +50,7 @@ Description: Allows the root user to read or write directly through the 
                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>/data64

What:           /sys/kernel/debug/accel/<n>/data64

Date:           Jan 2020

KernelVersion:  5.6

Contact:        ogabbay@kernel.org
@@ -65,7 +65,7 @@ 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

What:           /sys/kernel/debug/accel/<n>/data_dma

Date:           Apr 2021

KernelVersion:  5.13

Contact:        ogabbay@kernel.org
@@ -79,11 +79,11 @@ Description: Allows the root user to read from the device's internal 
                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

                in case 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

What:           /sys/kernel/debug/accel/<n>/device

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org
@@ -91,14 +91,14 @@ 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>/device_release_watchdog_timeout

What:           /sys/kernel/debug/accel/<n>/device_release_watchdog_timeout

Date:           Oct 2022

KernelVersion:  6.2

Contact:        ttayar@habana.ai

Description:    The watchdog timeout value in seconds for a device release upon

                certain error cases, after which the device is reset.



What:           /sys/kernel/debug/habanalabs/hl<n>/dma_size

What:           /sys/kernel/debug/accel/<n>/dma_size

Date:           Apr 2021

KernelVersion:  5.13

Contact:        ogabbay@kernel.org
@@ -108,7 +108,7 @@ Description: Specify the size of the DMA transaction when using DMA to read 
                When the write is finished, the user can read the "data_dma"

                blob



What:           /sys/kernel/debug/habanalabs/hl<n>/dump_razwi_events

What:           /sys/kernel/debug/accel/<n>/dump_razwi_events

Date:           Aug 2022

KernelVersion:  5.20

Contact:        fkassabri@habana.ai
@@ -117,7 +117,7 @@ Description: Dumps all razwi events to dmesg if exist. 
                the routine will clear the status register.

                Usage: cat dump_razwi_events



What:           /sys/kernel/debug/habanalabs/hl<n>/dump_security_violations

What:           /sys/kernel/debug/accel/<n>/dump_security_violations

Date:           Jan 2021

KernelVersion:  5.12

Contact:        ogabbay@kernel.org
@@ -125,14 +125,14 @@ 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

What:           /sys/kernel/debug/accel/<n>/engines

Date:           Jul 2019

KernelVersion:  5.3

Contact:        ogabbay@kernel.org

Description:    Displays the status registers values of the device engines and

                their derived idle status



What:           /sys/kernel/debug/habanalabs/hl<n>/i2c_addr

What:           /sys/kernel/debug/accel/<n>/i2c_addr

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org
@@ -140,7 +140,7 @@ Description: Sets I2C device address for I2C transaction that is generated 
                by the device's CPU, Not available when device is loaded with secured

                firmware



What:           /sys/kernel/debug/habanalabs/hl<n>/i2c_bus

What:           /sys/kernel/debug/accel/<n>/i2c_bus

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org
@@ -148,7 +148,7 @@ Description: Sets I2C bus address for I2C transaction that is generated by 
                the device's CPU, Not available when device is loaded with secured

                firmware



What:           /sys/kernel/debug/habanalabs/hl<n>/i2c_data

What:           /sys/kernel/debug/accel/<n>/i2c_data

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org
@@ -157,7 +157,7 @@ Description: Triggers an I2C transaction that is generated by the device's 
                reading from the file generates a read transaction, Not available

                when device is loaded with secured firmware



What:           /sys/kernel/debug/habanalabs/hl<n>/i2c_len

What:           /sys/kernel/debug/accel/<n>/i2c_len

Date:           Dec 2021

KernelVersion:  5.17

Contact:        obitton@habana.ai
@@ -165,7 +165,7 @@ Description: Sets I2C length in bytes for I2C transaction that is generated b 
                the device's CPU, Not available when device is loaded with secured

                firmware



What:           /sys/kernel/debug/habanalabs/hl<n>/i2c_reg

What:           /sys/kernel/debug/accel/<n>/i2c_reg

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org
@@ -173,35 +173,35 @@ Description: Sets I2C register id for I2C transaction that is generated by 
                the device's CPU, Not available when device is loaded with secured

                firmware



What:           /sys/kernel/debug/habanalabs/hl<n>/led0

What:           /sys/kernel/debug/accel/<n>/led0

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

Description:    Sets the state of the first S/W led on the device, Not available

                when device is loaded with secured firmware



What:           /sys/kernel/debug/habanalabs/hl<n>/led1

What:           /sys/kernel/debug/accel/<n>/led1

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

Description:    Sets the state of the second S/W led on the device, Not available

                when device is loaded with secured firmware



What:           /sys/kernel/debug/habanalabs/hl<n>/led2

What:           /sys/kernel/debug/accel/<n>/led2

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

Description:    Sets the state of the third S/W led on the device, Not available

                when device is loaded with secured firmware



What:           /sys/kernel/debug/habanalabs/hl<n>/memory_scrub

What:           /sys/kernel/debug/accel/<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

What:           /sys/kernel/debug/accel/<n>/memory_scrub_val

Date:           May 2022

KernelVersion:  5.19

Contact:        dhirschfeld@habana.ai
@@ -209,7 +209,7 @@ Description: The value to which the dram will be set to when the user 
                scrubs the dram using 'memory_scrub' debugfs file and

                the scrubbing value when using module param 'memory_scrub'



What:           /sys/kernel/debug/habanalabs/hl<n>/mmu

What:           /sys/kernel/debug/accel/<n>/mmu

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org
@@ -217,19 +217,19 @@ 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

                echo "1 0x1000" > /sys/kernel/debug/accel/0/mmu



What:           /sys/kernel/debug/habanalabs/hl<n>/mmu_error

What:           /sys/kernel/debug/accel/<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

                echo "0x200" > /sys/kernel/debug/accel/0/mmu_error

                cat /sys/kernel/debug/accel/0/mmu_error



What:           /sys/kernel/debug/habanalabs/hl<n>/monitor_dump

What:           /sys/kernel/debug/accel/<n>/monitor_dump

Date:           Mar 2022

KernelVersion:  5.19

Contact:        osharabi@habana.ai
@@ -243,7 +243,7 @@ Description: Allows the root user to dump monitors status from the device's 
                This interface doesn't support concurrency in the same device.

                Only supported on GAUDI.



What:           /sys/kernel/debug/habanalabs/hl<n>/monitor_dump_trig

What:           /sys/kernel/debug/accel/<n>/monitor_dump_trig

Date:           Mar 2022

KernelVersion:  5.19

Contact:        osharabi@habana.ai
@@ -253,14 +253,14 @@ Description: Triggers dump of monitor data. The value to trigger the operatio 
                When the write is finished, the user can read the "monitor_dump"

                blob



What:           /sys/kernel/debug/habanalabs/hl<n>/set_power_state

What:           /sys/kernel/debug/accel/<n>/set_power_state

Date:           Jan 2019

KernelVersion:  5.1

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>/skip_reset_on_timeout

What:           /sys/kernel/debug/accel/<n>/skip_reset_on_timeout

Date:           Jun 2021

KernelVersion:  5.13

Contact:        ynudelman@habana.ai
@@ -268,7 +268,7 @@ Description: Sets the skip reset on timeout option for the device. Value of 
                "0" means device will be reset in case some CS has timed out,

                otherwise it will not be reset.



What:           /sys/kernel/debug/habanalabs/hl<n>/state_dump

What:           /sys/kernel/debug/accel/<n>/state_dump

Date:           Oct 2021

KernelVersion:  5.15

Contact:        ynudelman@habana.ai
@@ -279,7 +279,7 @@ Description: Gets the state dump occurring on a CS timeout or failure. 
                Writing an integer X discards X state dumps, so that the

                next read would return X+1-st newest state dump.



What:           /sys/kernel/debug/habanalabs/hl<n>/stop_on_err

What:           /sys/kernel/debug/accel/<n>/stop_on_err

Date:           Mar 2020

KernelVersion:  5.6

Contact:        ogabbay@kernel.org
@@ -287,21 +287,21 @@ 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

What:           /sys/kernel/debug/accel/<n>/timeout_locked

Date:           Sep 2021

KernelVersion:  5.16

Contact:        obitton@habana.ai

Description:    Sets the command submission timeout value in seconds.



What:           /sys/kernel/debug/habanalabs/hl<n>/userptr

What:           /sys/kernel/debug/accel/<n>/userptr

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

Description:    Displays a list with information about the currently user

Description:    Displays a list with information about the current user

                pointers (user virtual addresses) that are pinned and mapped

                to DMA addresses



What:           /sys/kernel/debug/habanalabs/hl<n>/userptr_lookup

What:           /sys/kernel/debug/accel/<n>/userptr_lookup

Date:           Oct 2021

KernelVersion:  5.15

Contact:        ogabbay@kernel.org
@@ -309,7 +309,7 @@ Description: Allows to search for specific user pointers (user virtual 
                addresses) that are pinned and mapped to DMA addresses, and see

                their resolution to the specific dma address.



What:           /sys/kernel/debug/habanalabs/hl<n>/vm

What:           /sys/kernel/debug/accel/<n>/vm

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

Documentation/ABI/testing/sysfs-driver-habanalabs

+32 −32
Original line number Diff line number Diff line 
What:           /sys/class/habanalabs/hl<n>/armcp_kernel_ver

What:           /sys/class/accel/accel<n>/device/armcp_kernel_ver

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org
@@ -6,7 +6,7 @@ Description: Version of the Linux kernel running on the device's CPU. 
                Will be DEPRECATED in Linux kernel version 5.10, and be

                replaced with cpucp_kernel_ver



What:           /sys/class/habanalabs/hl<n>/armcp_ver

What:           /sys/class/accel/accel<n>/device/armcp_ver

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org
@@ -14,7 +14,7 @@ Description: Version of the application running on the device's CPU 
                Will be DEPRECATED in Linux kernel version 5.10, and be

                replaced with cpucp_ver



What:           /sys/class/habanalabs/hl<n>/clk_max_freq_mhz

What:           /sys/class/accel/accel<n>/device/clk_max_freq_mhz

Date:           Jun 2019

KernelVersion:  5.7

Contact:        ogabbay@kernel.org
@@ -24,58 +24,58 @@ Description: Allows the user to set the maximum clock frequency, in MHz. 
                frequency value of the device clock. This property is valid

                only for the Gaudi ASIC family



What:           /sys/class/habanalabs/hl<n>/clk_cur_freq_mhz

What:           /sys/class/accel/accel<n>/device/clk_cur_freq_mhz

Date:           Jun 2019

KernelVersion:  5.7

Contact:        ogabbay@kernel.org

Description:    Displays the current frequency, in MHz, of the device clock.

                This property is valid only for the Gaudi ASIC family



What:           /sys/class/habanalabs/hl<n>/cpld_ver

What:           /sys/class/accel/accel<n>/device/cpld_ver

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

Description:    Version of the Device's CPLD F/W



What:           /sys/class/habanalabs/hl<n>/cpucp_kernel_ver

What:           /sys/class/accel/accel<n>/device/cpucp_kernel_ver

Date:           Oct 2020

KernelVersion:  5.10

Contact:        ogabbay@kernel.org

Description:    Version of the Linux kernel running on the device's CPU



What:           /sys/class/habanalabs/hl<n>/cpucp_ver

What:           /sys/class/accel/accel<n>/device/cpucp_ver

Date:           Oct 2020

KernelVersion:  5.10

Contact:        ogabbay@kernel.org

Description:    Version of the application running on the device's CPU



What:           /sys/class/habanalabs/hl<n>/device_type

What:           /sys/class/accel/accel<n>/device/device_type

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

Description:    Displays the code name of the device according to its type.

                The supported values are: "GOYA"



What:           /sys/class/habanalabs/hl<n>/eeprom

What:           /sys/class/accel/accel<n>/device/eeprom

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

Description:    A binary file attribute that contains the contents of the

                on-board EEPROM



What:           /sys/class/habanalabs/hl<n>/fuse_ver

What:           /sys/class/accel/accel<n>/device/fuse_ver

Date:           Jan 2019

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

What:           /sys/class/accel/accel<n>/device/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

What:           /sys/class/accel/accel<n>/device/hard_reset

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org
@@ -83,14 +83,14 @@ 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

What:           /sys/class/accel/accel<n>/device/hard_reset_cnt

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

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

What:           /sys/class/accel/accel<n>/device/high_pll

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org
@@ -98,7 +98,7 @@ Description: Allows the user to set the maximum clock frequency for MME, TPC 
                and IC when the power management profile is set to "automatic".

                This property is valid only for the Goya ASIC family



What:           /sys/class/habanalabs/hl<n>/ic_clk

What:           /sys/class/accel/accel<n>/device/ic_clk

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org
@@ -110,27 +110,27 @@ Description: Allows the user to set the maximum clock frequency, in Hz, of 
                frequency value of the IC. This property is valid only for the

                Goya ASIC family



What:           /sys/class/habanalabs/hl<n>/ic_clk_curr

What:           /sys/class/accel/accel<n>/device/ic_clk_curr

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

Description:    Displays the current clock frequency, in Hz, of the Interconnect

                fabric. This property is valid only for the Goya ASIC family



What:           /sys/class/habanalabs/hl<n>/infineon_ver

What:           /sys/class/accel/accel<n>/device/infineon_ver

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

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

What:           /sys/class/accel/accel<n>/device/max_power

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

Description:    Allows the user to set the maximum power consumption of the

                device in milliwatts.



What:           /sys/class/habanalabs/hl<n>/mme_clk

What:           /sys/class/accel/accel<n>/device/mme_clk

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org
@@ -142,21 +142,21 @@ Description: Allows the user to set the maximum clock frequency, in Hz, of 
                frequency value of the MME. This property is valid only for the

                Goya ASIC family



What:           /sys/class/habanalabs/hl<n>/mme_clk_curr

What:           /sys/class/accel/accel<n>/device/mme_clk_curr

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

Description:    Displays the current clock frequency, in Hz, of the MME compute

                engine. This property is valid only for the Goya ASIC family



What:           /sys/class/habanalabs/hl<n>/pci_addr

What:           /sys/class/accel/accel<n>/device/pci_addr

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

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

What:           /sys/class/accel/accel<n>/device/pm_mng_profile

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org
@@ -170,19 +170,19 @@ Description: Power management profile. Values are "auto", "manual". In "auto" 
                ic_clk, mme_clk and tpc_clk. This property is valid only for

                the Goya ASIC family



What:           /sys/class/habanalabs/hl<n>/preboot_btl_ver

What:           /sys/class/accel/accel<n>/device/preboot_btl_ver

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

Description:    Version of the device's preboot F/W code



What:           /sys/class/habanalabs/hl<n>/security_enabled

What:           /sys/class/accel/accel<n>/device/security_enabled

Date:           Oct 2022

KernelVersion:  6.1

Contact:        obitton@habana.ai

Description:    Displays the device's security status



What:           /sys/class/habanalabs/hl<n>/soft_reset

What:           /sys/class/accel/accel<n>/device/soft_reset

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org
@@ -190,14 +190,14 @@ 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

What:           /sys/class/accel/accel<n>/device/soft_reset_cnt

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

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

What:           /sys/class/accel/accel<n>/device/status

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org
@@ -215,13 +215,13 @@ Description: Status of the card: 
                    a compute-reset which is executed after a device release

                    (relevant for Gaudi2 only).



What:           /sys/class/habanalabs/hl<n>/thermal_ver

What:           /sys/class/accel/accel<n>/device/thermal_ver

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

Description:    Version of the Device's thermal daemon



What:           /sys/class/habanalabs/hl<n>/tpc_clk

What:           /sys/class/accel/accel<n>/device/tpc_clk

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org
@@ -233,20 +233,20 @@ Description: Allows the user to set the maximum clock frequency, in Hz, of 
                frequency value of the TPC. This property is valid only for

                Goya ASIC family



What:           /sys/class/habanalabs/hl<n>/tpc_clk_curr

What:           /sys/class/accel/accel<n>/device/tpc_clk_curr

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

Description:    Displays the current clock frequency, in Hz, of the TPC compute

                engines. This property is valid only for the Goya ASIC family



What:           /sys/class/habanalabs/hl<n>/uboot_ver

What:           /sys/class/accel/accel<n>/device/uboot_ver

Date:           Jan 2019

KernelVersion:  5.1

Contact:        ogabbay@kernel.org

Description:    Version of the u-boot running on the device's CPU



What:           /sys/class/habanalabs/hl<n>/vrm_ver

What:           /sys/class/accel/accel<n>/device/vrm_ver

Date:           Jan 2022

KernelVersion:  5.17

Contact:        ogabbay@kernel.org

MAINTAINERS

+1 −0
Original line number Diff line number Diff line
@@ -9086,6 +9086,7 @@ T: git https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux.git 
F:	Documentation/ABI/testing/debugfs-driver-habanalabs

F:	Documentation/ABI/testing/sysfs-driver-habanalabs

F:	drivers/accel/habanalabs/

F:	include/linux/habanalabs/

F:	include/trace/events/habanalabs.h

F:	include/uapi/drm/habanalabs_accel.h
































drivers/accel/drm_accel.c



+8
−13






























Original line number
Diff line number
Diff line







@@ -21,7 +21,6 @@ static DEFINE_SPINLOCK(accel_minor_lock);







static struct idr accel_minors_idr;



















static struct dentry *accel_debugfs_root;









static struct class *accel_class;



















static struct device_type accel_sysfs_device_minor = {









	.name = "accel_minor"








@@ -32,23 +31,19 @@ static char *accel_devnode(const struct device *dev, umode_t *mode)







	return kasprintf(GFP_KERNEL, "accel/%s", dev_name(dev));









}



















static const struct class accel_class = {









	.name = "accel",









	.devnode = accel_devnode,









};



















static int accel_sysfs_init(void)









{









	accel_class = class_create("accel");









	if (IS_ERR(accel_class))









		return PTR_ERR(accel_class);



















	accel_class->devnode = accel_devnode;



















	return 0;









	return class_register(&accel_class);









}



















static void accel_sysfs_destroy(void)









{









	if (IS_ERR_OR_NULL(accel_class))









		return;









	class_destroy(accel_class);









	accel_class = NULL;









	class_unregister(&accel_class);









}



















static int accel_name_info(struct seq_file *m, void *data)








@@ -117,7 +112,7 @@ void accel_debugfs_register(struct drm_device *dev)







void accel_set_device_instance_params(struct device *kdev, int index)









{









	kdev->devt = MKDEV(ACCEL_MAJOR, index);









	kdev->class = accel_class;









	kdev->class = &accel_class;









	kdev->type = &accel_sysfs_device_minor;









}










































drivers/accel/habanalabs/common/command_buffer.c



+3
−2






























Original line number
Diff line number
Diff line







@@ -361,10 +361,11 @@ static int hl_cb_info(struct hl_mem_mgr *mmg,







	return rc;









}



















int hl_cb_ioctl(struct hl_fpriv *hpriv, void *data)









int hl_cb_ioctl(struct drm_device *ddev, void *data, struct drm_file *file_priv)









{









	union hl_cb_args *args = data;









	struct hl_fpriv *hpriv = file_priv->driver_priv;









	struct hl_device *hdev = hpriv->hdev;









	union hl_cb_args *args = data;









	u64 handle = 0, device_va = 0;









	enum hl_device_status status;









	u32 usage_cnt = 0;