Basic Usage
This section describes the usage and command parameters of the CMF command line tool.
Go to the build/uapi folder where the command line tool is located and run the --help command to view all parameters.
./devcman --help
Table 1 describes the devcman command parameters.
Parameter |
Range |
Default Value |
Description |
|---|---|---|---|
-h/--help |
- |
- |
Prints the usage information about all parameters. |
-m/--mode |
l2-restrict |
l2-restrict |
(Mandatory) Only l2-restrict is valid for this parameter. If other modes are specified, error logs are printed. |
-s/--start_cpu |
Visible core ID, which is not greater than end_cpu. |
- |
(Mandatory) Indicates the start core ID. Ensure that the value range between start_cpu and end_cpu is within the configured CPU core range. |
-e/--end_cpu |
Visible core ID, which is not less than start_cpu. |
- |
(Mandatory) Indicates the end core ID. Ensure that the value range between start_cpu and end_cpu is within the configured CPU core range. |
--reset |
- |
- |
If this parameter is added, feature reset is performed based on the specified mode (which can only be l2-restrict) and CPU cores. |
--d-mask |
Hexadecimal string ranging from 0x0 to 0x3ff |
0x0 |
Indicates the L2 D-cache mask. |
--i-mask |
Hexadecimal string ranging from 0x0 to 0x3ff |
0x0 |
Indicates the L2 I-cache mask. |