http://defect.opensolaris.org/bz/show_bug.cgi?id=6120
Summary: CPUPM disabling needs fixin
Classification: Development
Product: power-mgmt
Version: unspecified
Platform: Other
OS/Version: Solaris
Status: NEW
Severity: minor
Priority: P4
Component: PAD
AssignedTo: mark.haywood at sun.com
ReportedBy: mark.haywood at sun.com
CC: tesla-dev at opensolaris.org
The CPU driver and the CPUPM kernel code use a variety of disabling macros and
variables. I don't believe that they are correct. For example, I believe that
a failure in the CPU driver attach routine would disable all CPUPM in the
kernel.
The ability to disable CPUPM should be broken up appropriately.
1 - There ought to be a way to disable the CPU driver.
2 - There ought to be a way to disable any of the CPUPM states in the
kernel.
3 - There ought to be a way for the CPU driver to tell if it's support has been
disabled or if P-state support has been disabled by the CPUPM subsystem in
the kernel.
4 - The CPUPM subsystem will need to be able to determine what CPUPM support
is enabled (and possibly whether or not the CPU driver support is enabled).
Currently, I think support for these four things are confused and need to be
reworked a bit.
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