| What: /sys/devices/system/cpu/dscr_default |
| Date: 13-May-2014 |
| KernelVersion: v3.15.0 |
| Contact: |
| Description: Writes are equivalent to writing to |
| /sys/devices/system/cpu/cpuN/dscr on all CPUs. |
| Reads return the last written value or 0. |
| This value is not a global default: it is a way to set |
| all per-CPU defaults at the same time. |
| Values: 64 bit unsigned integer (bit field) |
| |
| What: /sys/devices/system/cpu/cpu[0-9]+/dscr |
| Date: 13-May-2014 |
| KernelVersion: v3.15.0 |
| Contact: |
| Description: Default value for the Data Stream Control Register (DSCR) on |
| a CPU. |
| This default value is used when the kernel is executing and |
| for any process that has not set the DSCR itself. |
| If a process ever sets the DSCR (via direct access to the |
| SPR) that value will be persisted for that process and used |
| on any CPU where it executes (overriding the value described |
| here). |
| If set by a process it will be inherited by child processes. |
| Values: 64 bit unsigned integer (bit field) |