diff options
Diffstat (limited to 'Documentation/ABI/testing')
| -rw-r--r-- | Documentation/ABI/testing/debugfs-driver-habanalabs | 18 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-habanalabs | 42 |
2 files changed, 39 insertions, 21 deletions
diff --git a/Documentation/ABI/testing/debugfs-driver-habanalabs b/Documentation/ABI/testing/debugfs-driver-habanalabs index 2f5b80be07a3..f0ac14b70ecb 100644 --- a/Documentation/ABI/testing/debugfs-driver-habanalabs +++ b/Documentation/ABI/testing/debugfs-driver-habanalabs @@ -3,7 +3,10 @@ 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" + 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 + only when the IOMMU is disabled. + The acceptable value is a string that starts with "0x" What: /sys/kernel/debug/habanalabs/hl<n>/command_buffers Date: Jan 2019 @@ -33,10 +36,12 @@ 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 + transaction. 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 + 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 @@ -46,6 +51,13 @@ 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>/engines +Date: Jul 2019 +KernelVersion: 5.3 +Contact: oded.gabbay@gmail.com +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 diff --git a/Documentation/ABI/testing/sysfs-driver-habanalabs b/Documentation/ABI/testing/sysfs-driver-habanalabs index 78b2bcf316a3..f433fc6db3c6 100644 --- a/Documentation/ABI/testing/sysfs-driver-habanalabs +++ b/Documentation/ABI/testing/sysfs-driver-habanalabs @@ -62,18 +62,20 @@ 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 +Description: Allows the user to set the maximum clock frequency, in Hz, 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 than the maximum. The user should read the ic_clk_curr to see the actual - frequency value of the IC + frequency value of the IC. This property is valid only for the + Goya ASIC family 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 +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 Date: Jan 2019 @@ -92,18 +94,20 @@ 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 +Description: Allows the user to set the maximum clock frequency, in Hz, 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 than the maximum. The user should read the mme_clk_curr to see the actual - frequency value of the MME + frequency value of the MME. This property is valid only for the + Goya ASIC family 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 +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 Date: Jan 2019 @@ -163,18 +167,20 @@ 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 +Description: Allows the user to set the maximum clock frequency, in Hz, 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 than the maximum. The user should read the tpc_clk_curr to see the actual - frequency value of the TPC + frequency value of the TPC. This property is valid only for + Goya ASIC family 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 +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 Date: Jan 2019 |