hi Mark an Anup,
A quick thought, how about replacing acpi_stubs.c implementation with
Solaris standard module stub facility?
By adopting such a change, it can simplify the implemnetation and make
thing clearer.
Please take a look at uts/intel/ia32/ml/modstubs.s and
uts/sparc/ml/modstubs.s.
Thanks!
>-----Original Message-----
>From: tesla-dev-bounces at opensolaris.org
>[mailto:tesla-dev-bounces at opensolaris.org] On Behalf Of Mark Haywood
>Sent: 2008?12?9? 10:14
>To: tesla-dev at opensolaris.org
>Subject: [tesla-dev] CPUPM support in the kernel
>
>Anup and I have been working on moving the core CPUPM support from the
>CPU driver - into the kernel. Our goal is to make the CPU driver
>specific to polling CPU power management and not have PAD
>depend on the
>driver at all. That means moving a fair bit of the i86pc specific CPU
>power management support (ACPI parsing and caching, speedstep, pwrnow,
>cstate and tstate handling) into the kernel. This eliminates the need
>for callback mechanism into the CPU driver. Unfortunately,
>since acpica
>is a module, it does require callbacks for that. But those have been
>centralized into the existing uts/i86pc/os/acpi_stubs.c file.
>
>We've posted a webrev of our effort at:
>
>http://cr.opensolaris.org/~mhaywood/cpupm-move/
>
>We'd appreciate any comments.
>
>Thanks!
>Mark
>
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