DSCR register in powerpc allows user to have some control of prefetch of data
stream in the processor. Please refer to the ISA documents or related manual
for more detailed information regarding how to use this DSCR to attain this
-control of the pefetches . This document here provides an overview of kernel
+control of the prefetches . This document here provides an overview of kernel
support for DSCR, related kernel objects, it's functionalities and exported
user interface.
value into every CPU's DSCR register right away and updates the current
thread's DSCR value as well.
- Changing the CPU specif DSCR default value in the sysfs does exactly
+ Changing the CPU specific DSCR default value in the sysfs does exactly
the same thing as above but unlike the global one above, it just changes
stuff for that particular CPU instead for all the CPUs on the system.
Accessing DSCR through user level SPR (0x03) from user space will first
create a facility unavailable exception. Inside this exception handler
- all mfspr isntruction based read attempts will get emulated and returned
+ all mfspr instruction based read attempts will get emulated and returned
where as the first mtspr instruction based write attempts will enable
the DSCR facility for the next time around (both for read and write) by
setting DSCR facility in the FSCR register.
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