powerpc/powernv: Increase PE# capacity

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Each PHB maintains an array helping to translate 2-bytes Request
ID (RID) to PE# with the assumption that PE# takes one byte, meaning
that we can't have more than 256 PEs. However, pci_dn->pe_number
already had 4-bytes for the PE#.

This extends the PE# capacity for every PHB. After that, the PE number
is represented by 4-bytes value. Then we can reuse IODA_INVALID_PE to
check the PE# in phb->pe_rmap[] is valid or not.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Reviewed-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Gavin Shan 2016-05-20 16:41:29 +10:00 • committed by Michael Ellerman

parent 577c8c8868

commit c127562ae1

2 changed files with 7 additions and 6 deletions

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6

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

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7

arch/powerpc/platforms/powernv/pci.h

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