On Jun 26, 2008, at 9:39 AM, Liu Dave wrote:
Basic PM support for 83xx. Standby is implemented as sleep.
Suspend-to-RAM is implemented as "deep sleep" (with the processor
turned off) on 831x. PCI agent power management is supported.
Device power management of SOC peripherals is not yet supported.
(Not comments on this patch, but related)
Do you know if anyone is looking at making sure DOZE/NAP work on
83xx? We clearly don't flush the L1 cache today in the 6xx code.
I did the test on 837x, the NAP did *not* work, due to the cache
coherence issue.
You are right, currently no flush L1 in the 6xx code, maybe it
depend on
the
platform hardware capability.
Ben told me the pmac HW/chipsets did something here to ensure that the
core never actually went into NAP (or something like that) so they
didn't have to flush the caches.
- k
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-dev
