Hi Tesla dev, Here is the patch for /etc/power.conf cpu_deep_idle setting and Suspend/Resume. This will be pushed into pad-gate tomorrow after more testing and possible refactoring.
This uses a callback for S/R. It was pointed out that the DDI_SUSPEND/DDI_RESUME cpudrv_attach/cpudrv_detach entry points in common cpudrv are only there to support the legacy pm framework. The x86 cpudrv driver is moving away from that framework which motivated this patch to use callbacks instead. The callback in cpudrv is in the CPU-specific cpu_idle "module". This allows different CPU support code to perform different S/R and enable/disable functionality. Another option was placing the callbacks in cpudrv_mach and adding supporting methods into cpudrv_cstate_ops_t. This uses the 2-stage idle function pointers as Eric suggested. That could be removed if we used checks in cpu_acpi_idle() for initialized cpus, or used per cpu idle function pointers. Regards, Bill -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: deep_idle.patch URL: <http://mail.opensolaris.org/pipermail/tesla-dev/attachments/20081021/13100ed5/attachment.ksh>
