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/openbmc/linux/arch/powerpc/platforms/powernv/
H A Dsmp.c8d6f7c5a Fri May 23 03:15:26 CDT 2014 Michael Ellerman <mpe@ellerman.id.au> powerpc/powernv: Make it possible to skip the IRQHAPPENED check in power7_nap()

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>
8d6f7c5a Fri May 23 03:15:26 CDT 2014 Michael Ellerman <mpe@ellerman.id.au> powerpc/powernv: Make it possible to skip the IRQHAPPENED check in power7_nap()

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>
/openbmc/linux/arch/powerpc/include/asm/
H A Dprocessor.h8d6f7c5a Fri May 23 03:15:26 CDT 2014 Michael Ellerman <mpe@ellerman.id.au> powerpc/powernv: Make it possible to skip the IRQHAPPENED check in power7_nap()

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>
8d6f7c5a Fri May 23 03:15:26 CDT 2014 Michael Ellerman <mpe@ellerman.id.au> powerpc/powernv: Make it possible to skip the IRQHAPPENED check in power7_nap()

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>