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Groups > linux.kernel > #1406048
| From | Gautham R Shenoy <ego@linux.vnet.ibm.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v3 8/9] cpuidle/powernv: Add support for POWER ISA v3 idle states |
| Date | 2016-05-24 12:40 +0200 |
| Message-ID | <rChUK-251-7@gated-at.bofh.it> (permalink) |
| References | <rBZOa-7tz-11@gated-at.bofh.it> <rBZOa-7tz-13@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Mon, May 23, 2016 at 08:48:41PM +0530, Shreyas B. Prabhu wrote: > POWER ISA v3 defines a new idle processor core mechanism. In summary, > a) new instruction named stop is added. > b) new per thread SPR named PSSCR is added which controls the behavior > of stop instruction. > > Supported idle states and value to be written to PSSCR register to enter > any idle state is exposed via ibm,cpu-idle-state-names and > ibm,cpu-idle-state-psscr respectively. To enter an idle state, > platform provided power_stop() needs to be invoked with the appropriate > PSSCR value. > > This patch adds support for this new mechanism in cpuidle powernv driver. > > Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> > Cc: Daniel Lezcano <daniel.lezcano@linaro.org> > Cc: linux-pm@vger.kernel.org > Cc: Michael Ellerman <mpe@ellerman.id.au> > Cc: Paul Mackerras <paulus@ozlabs.org> > Cc: linuxppc-dev@lists.ozlabs.org > Signed-off-by: Shreyas B. Prabhu <shreyas@linux.vnet.ibm.com> Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com> -- Thanks and Regards gautham.
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[PATCH v3 8/9] cpuidle/powernv: Add support for POWER ISA v3 idle states "Shreyas B. Prabhu" <shreyas@linux.vnet.ibm.com> - 2016-05-23 17:20 +0200 Re: [PATCH v3 8/9] cpuidle/powernv: Add support for POWER ISA v3 idle states Gautham R Shenoy <ego@linux.vnet.ibm.com> - 2016-05-24 12:40 +0200
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