diff options
Diffstat (limited to 'Documentation/ABI/testing/debugfs-driver-habanalabs')
-rw-r--r-- | Documentation/ABI/testing/debugfs-driver-habanalabs | 62 |
1 files changed, 38 insertions, 24 deletions
diff --git a/Documentation/ABI/testing/debugfs-driver-habanalabs b/Documentation/ABI/testing/debugfs-driver-habanalabs index 2e9ae311e02d..d447a611c41b 100644 --- a/Documentation/ABI/testing/debugfs-driver-habanalabs +++ b/Documentation/ABI/testing/debugfs-driver-habanalabs @@ -1,7 +1,7 @@ What: /sys/kernel/debug/habanalabs/hl<n>/addr Date: Jan 2019 KernelVersion: 5.1 -Contact: oded.gabbay@gmail.com +Contact: ogabbay@kernel.org Description: Sets the device address to be used for read or write through PCI bar, or the device VA of a host mapped memory to be read or written directly from the host. The latter option is allowed @@ -11,7 +11,7 @@ Description: Sets the device address to be used for read or write through What: /sys/kernel/debug/habanalabs/hl<n>/clk_gate Date: May 2020 KernelVersion: 5.8 -Contact: oded.gabbay@gmail.com +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 @@ -20,9 +20,13 @@ Description: Allow the root user to disable/enable in runtime the clock 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 + + ======= ============ + 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 @@ -30,28 +34,28 @@ Description: Allow the root user to disable/enable in runtime the clock What: /sys/kernel/debug/habanalabs/hl<n>/command_buffers Date: Jan 2019 KernelVersion: 5.1 -Contact: oded.gabbay@gmail.com +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 Date: Jan 2019 KernelVersion: 5.1 -Contact: oded.gabbay@gmail.com +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 Date: Jan 2019 KernelVersion: 5.1 -Contact: oded.gabbay@gmail.com +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 Date: Jan 2019 KernelVersion: 5.1 -Contact: oded.gabbay@gmail.com +Contact: ogabbay@kernel.org 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 @@ -59,13 +63,14 @@ Description: Allows the root user to read or write directly through the 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. + 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 Date: Jan 2020 KernelVersion: 5.6 -Contact: oded.gabbay@gmail.com +Contact: ogabbay@kernel.org Description: Allows the root user to read or write 64 bit data directly through the device's PCI bar. Writing to this file generates a write transaction while reading from the file generates a read @@ -73,13 +78,14 @@ Description: Allows the root user to read or write 64 bit data directly 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. + 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>/device Date: Jan 2019 KernelVersion: 5.1 -Contact: oded.gabbay@gmail.com +Contact: ogabbay@kernel.org 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 @@ -87,28 +93,28 @@ Description: Enables the root user to set the device to specific state. What: /sys/kernel/debug/habanalabs/hl<n>/engines Date: Jul 2019 KernelVersion: 5.3 -Contact: oded.gabbay@gmail.com +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 Date: Jan 2019 KernelVersion: 5.1 -Contact: oded.gabbay@gmail.com +Contact: ogabbay@kernel.org 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 +Contact: ogabbay@kernel.org 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 +Contact: ogabbay@kernel.org 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 @@ -116,32 +122,32 @@ Description: Triggers an I2C transaction that is generated by the device's What: /sys/kernel/debug/habanalabs/hl<n>/i2c_reg Date: Jan 2019 KernelVersion: 5.1 -Contact: oded.gabbay@gmail.com +Contact: ogabbay@kernel.org 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 +Contact: ogabbay@kernel.org 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 +Contact: ogabbay@kernel.org 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 +Contact: ogabbay@kernel.org 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 +Contact: ogabbay@kernel.org 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. @@ -151,14 +157,14 @@ Description: Displays the hop values and physical address for a given ASID What: /sys/kernel/debug/habanalabs/hl<n>/set_power_state Date: Jan 2019 KernelVersion: 5.1 -Contact: oded.gabbay@gmail.com +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>/userptr Date: Jan 2019 KernelVersion: 5.1 -Contact: oded.gabbay@gmail.com +Contact: ogabbay@kernel.org Description: Displays a list with information about the currently user pointers (user virtual addresses) that are pinned and mapped to DMA addresses @@ -166,13 +172,21 @@ Description: Displays a list with information about the currently user What: /sys/kernel/debug/habanalabs/hl<n>/vm Date: Jan 2019 KernelVersion: 5.1 -Contact: oded.gabbay@gmail.com +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: oded.gabbay@gmail.com +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 |