Re: [PATCH v2 3/5] powerpc/powernv: Add winkle infrastructure

2014-10-07 Thread Shreyas B Prabhu
On Tuesday 07 October 2014 11:03 AM, Benjamin Herrenschmidt wrote: > On Wed, 2014-10-01 at 13:16 +0530, Shreyas B. Prabhu wrote: >> Winkle causes power to be gated off to the entire chiplet. Hence the >> hypervisor/firmware state in the entire chiplet is lost. >> >> This patch adds necessary infr

Re: [PATCH v2 3/5] powerpc/powernv: Add winkle infrastructure

2014-10-06 Thread Benjamin Herrenschmidt
On Wed, 2014-10-01 at 13:16 +0530, Shreyas B. Prabhu wrote: > Winkle causes power to be gated off to the entire chiplet. Hence the > hypervisor/firmware state in the entire chiplet is lost. > > This patch adds necessary infrastructure to support waking up from > hypervisor state loss. Specifically

[PATCH v2 3/5] powerpc/powernv: Add winkle infrastructure

2014-10-01 Thread Shreyas B. Prabhu
Winkle causes power to be gated off to the entire chiplet. Hence the hypervisor/firmware state in the entire chiplet is lost. This patch adds necessary infrastructure to support waking up from hypervisor state loss. Specifically does following: - Before entering winkle, save state of registers tha