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powerpc/powernv: Use OPAL call for TCE kill on NVLink2

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Add detection of NPU2 PHBs. NPU2/NVLink2 has a different register
layout for the TCE kill register therefore TCE invalidation should be
done via the OPAL call rather than using the register directly as it
is for PHB3 and NVLink1. This changes TCE invalidation to use the OPAL
call in the case of a NPU2 PHB model.

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Alistair Popple
2017-01-10 15:41:44 +11:00
committed by Michael Ellerman
parent 1d0761d255
commit 616badd2fb
3 changed files with 16 additions and 1 deletions
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arch/powerpc/platforms/powernv/pci.h
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@@ -19,6 +19,7 @@ enum pnv_phb_model {
PNV_PHB_MODEL_P7IOC,
PNV_PHB_MODEL_PHB3,
PNV_PHB_MODEL_NPU,
PNV_PHB_MODEL_NPU2,
};
#define PNV_PCI_DIAG_BUF_SIZE 8192