Thread (5 messages) flat view 5 messages, 2 authors, 2017-03-17

Re: [PATCH] powerpc/pasemi, cbe: Do not process decremeter or external wakeup from powersave

From: Michael Ellerman <mpe@ellerman.id.au>
Date: 2017-03-16 10:31:47

Nicholas Piggin [off-list ref] writes:
Hi,

I would like to start using a dedicated stack for system reset interrupt
and treat it as a Linux nmi, which makes it tricky to call complex
interrupt handlers directly from the system reset trap handler.

So I would like to remove the decrementer and external handler calls from
Cell and Pasemi platforms' system reset handler. I think we can just
remove them if they can be handled when they re-fire as normal interrupts?
At the moment I don't have environments set up to test if this works.
My QS22 has booted OK with it applied, so it seems OK.

I'll test it a bit more tomorrow.

cheers
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