powerpc/powernv: Change NPU PE# assignment

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The P8+ hardware supports four partitionable endpoints (PEs) however
the hardware reports all errors as occurring on PE#0. This means we
need to reserve this PE for error handling (EEH) and not assign it to
a NPU device, implying that some devices will need to share PEs.

This patch changes the PE assignment for NPU devices such that NPU
devices which connect to the same GPU are assigned to the same
PE#.

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Alistair Popple 2016-01-11 16:53:49 +11:00 • committed by Michael Ellerman

parent 419dbd5e1f

commit b521549a09

1 changed files with 66 additions and 7 deletions

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

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