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powerpc/powernv/pci: Add helper to find ioda_pe from BDFN
authorOliver O'Halloran <oohall@gmail.com>
Fri, 17 Apr 2020 07:35:05 +0000 (17:35 +1000)
committerMichael Ellerman <mpe@ellerman.id.au>
Thu, 28 May 2020 13:24:38 +0000 (23:24 +1000)
commitaa6b1f7112aea984afa29fe33915b6de379a63e5
treea25a4773ee37656e4eef8c66d1b0ceec607c81d7tree | snapshot
parent01092f363010dae3339d4e6b0e6e144a0f15afadcommit | diff
powerpc/powernv/pci: Add helper to find ioda_pe from BDFN

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
arch/powerpc/platforms/powernv/pci-ioda.c diff | blob | history
arch/powerpc/platforms/powernv/pci.h diff | blob | history
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