powerpc/powernv: Add platform-specific services for opencapi

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Implement a few platform-specific calls which can be used by drivers:

- provide the Transaction Layer capabilities of the host, so that the
  driver can find some common ground and configure the device and host
  appropriately.

- provide the hw interrupt to be used for translation faults raised by
  the NPU

- map/unmap some NPU mmio registers to get the fault context when the
  NPU raises an address translation fault

The rest are wrappers around the previously-introduced opal calls.

Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Frederic Barrat 2018-01-23 12:31:39 +01:00 • committed by Michael Ellerman

parent 74d656d219

commit 6914c75711

3 changed files with 210 additions and 0 deletions

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29

arch/powerpc/include/asm/pnv-ocxl.h

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1

arch/powerpc/platforms/powernv/Makefile

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180

arch/powerpc/platforms/powernv/ocxl.c

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