Re: [PATCH] powerpc: powernv: winkle: Restore LPCR with LPCR_PECE1 cleared

On Wed, 2015-01-14 at 16:43 +0530, Shreyas B. Prabhu wrote: > LPCR_PECE1 bit controls whether decrementer interrupts are allowed to > cause exit from power-saving mode. While waking up from winkle, restoring > LPCR with LPCR_PECE1 set (i.e Decrementer interrupts allowed) can cause > issue in the fo

[PATCH] powerpc: powernv: winkle: Restore LPCR with LPCR_PECE1 cleared

LPCR_PECE1 bit controls whether decrementer interrupts are allowed to cause exit from power-saving mode. While waking up from winkle, restoring LPCR with LPCR_PECE1 set (i.e Decrementer interrupts allowed) can cause issue in the following scenario: - All the threads in a core are offlined. The cor