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powerpc/eeh: Add eeh_state_active() helper

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Checking for a "fully active" device state requires testing two flag
bits, which is open coded in several places, so add a function to do
it.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Sam Bobroff
2018-03-19 13:49:23 +11:00
committed by Michael Ellerman
parent 54048cf876
commit 34a286a4ac
3 changed files with 14 additions and 20 deletions
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6
arch/powerpc/include/asm/eeh.h
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@@ -256,6 +256,12 @@ static inline void eeh_serialize_unlock(unsigned long flags)
raw_spin_unlock_irqrestore(&confirm_error_lock, flags);
}
static inline bool eeh_state_active(int state)
{
return (state & (EEH_STATE_MMIO_ACTIVE | EEH_STATE_DMA_ACTIVE))
== (EEH_STATE_MMIO_ACTIVE | EEH_STATE_DMA_ACTIVE);
}
typedef void *(*eeh_traverse_func)(void *data, void *flag);
void eeh_set_pe_aux_size(int size);
int eeh_phb_pe_create(struct pci_controller *phb);