powerpc/powernv/pci: Add helper to find ioda_pe from BDFN

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For each PHB we maintain a reverse-map that can be used to find the
PE that a BDFN is currently mapped to. Add a helper for doing this
lookup so we can check if a PE has been configured without looking
at pdn->pe_number.

Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200417073508.30356-2-oohall@gmail.com

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Oliver O'Halloran 2020-04-17 17:35:05 +10:00 • committed by Michael Ellerman

parent 9d0879a2db

commit a8d7d5fc2e

2 changed files with 11 additions and 0 deletions

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arch/powerpc/platforms/powernv/pci-ioda.c

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1

arch/powerpc/platforms/powernv/pci.h

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