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authorStephen Rothwell <sfr@canb.auug.org.au>2014-06-03 10:52:09 +1000
committerStephen Rothwell <sfr@canb.auug.org.au>2014-06-03 10:52:09 +1000
commit4b9f6c6c1b4fcd1a64cdc8db39ba8eb82670a339 (patch)
tree5019b3253841d349dee5485fe2d0212fa85cfe60 /Documentation/ABI
parenta7f1a903d98e716aa3456977a6bdcfe493cdb7a3 (diff)
parent26c88f930141f0d9e7673af2332ada67b7e8865a (diff)
Merge remote-tracking branch 'powerpc/next'
Conflicts: arch/powerpc/include/asm/sections.h
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+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)