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powerpc/powernv: Make it possible to skip the IRQHAPPENED check in power7_nap()

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To support split core we need to be able to force all secondaries into
nap, so the core can detect they are idle and do an unsplit.

Currently power7_nap() will return without napping if there is an irq
pending. We want to ignore the pending irq and nap anyway, we will deal
with the interrupt later.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Michael Ellerman
2014-05-23 18:15:26 +10:00
committed by Benjamin Herrenschmidt
parent 441c19c8a2
commit 8d6f7c5aa3
3 changed files with 11 additions and 2 deletions
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2
arch/powerpc/include/asm/processor.h
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@ -449,7 +449,7 @@ extern unsigned long cpuidle_disable;
enum idle_boot_override {IDLE_NO_OVERRIDE = 0, IDLE_POWERSAVE_OFF};
extern int powersave_nap; /* set if nap mode can be used in idle loop */
extern void power7_nap(void);
extern void power7_nap(int check_irq);
extern void power7_sleep(void);
extern void flush_instruction_cache(void);
extern void hard_reset_now(void);