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Merge branch 'upstream/linux-hardened/5.1' into feature/linux-hardened
Change-Id: I7ed2c350b3d53d216f3f1cd82988a578739d111a Signed-off-by: Thibaut Sautereau <thibaut.sautereau@ssi.gouv.fr>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| What: /sys/class/dax/ | ||
| Date: May, 2016 | ||
| KernelVersion: v4.7 | ||
| Contact: linux-nvdimm@lists.01.org | ||
| Description: Device DAX is the device-centric analogue of Filesystem | ||
| DAX (CONFIG_FS_DAX). It allows memory ranges to be | ||
| allocated and mapped without need of an intervening file | ||
| system. Device DAX is strict, precise and predictable. | ||
| Specifically this interface: | ||
|
|
||
| 1/ Guarantees fault granularity with respect to a given | ||
| page size (pte, pmd, or pud) set at configuration time. | ||
|
|
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| 2/ Enforces deterministic behavior by being strict about | ||
| what fault scenarios are supported. | ||
|
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| The /sys/class/dax/ interface enumerates all the | ||
| device-dax instances in the system. The ABI is | ||
| deprecated and will be removed after 2020. It is | ||
| replaced with the DAX bus interface /sys/bus/dax/ where | ||
| device-dax instances can be found under | ||
| /sys/bus/dax/devices/ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,126 @@ | ||
| 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 | ||
|
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| 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 | ||
|
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||
| 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 | ||
|
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||
| 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 | ||
|
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||
| 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 | ||
|
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| 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 | ||
|
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| 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 | ||
|
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| 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 | ||
|
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| 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 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,23 @@ | ||
| What: /sys/kernel/debug/wilco_ec/raw | ||
| Date: January 2019 | ||
| KernelVersion: 5.1 | ||
| Description: | ||
| Write and read raw mailbox commands to the EC. | ||
|
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||
| For writing: | ||
| Bytes 0-1 indicate the message type: | ||
| 00 F0 = Execute Legacy Command | ||
| 00 F2 = Read/Write NVRAM Property | ||
| Byte 2 provides the command code | ||
| Bytes 3+ consist of the data passed in the request | ||
|
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||
| At least three bytes are required, for the msg type and command, | ||
| with additional bytes optional for additional data. | ||
|
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||
| Example: | ||
| // Request EC info type 3 (EC firmware build date) | ||
| $ echo 00 f0 38 00 03 00 > raw | ||
| // View the result. The decoded ASCII result "12/21/18" is | ||
| // included after the raw hex. | ||
| $ cat raw | ||
| 00 31 32 2f 32 31 2f 31 38 00 38 00 01 00 2f 00 .12/21/18.8... |
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