[PATCH kernel v2] powerpc/powernv/npu: Do not attempt NPU2 setup on POWER8NVL NPU

[Michael Ellerman]

On Sun, 22 Nov 2020 18:38:28 +1100, Alexey Kardashevskiy wrote:
> We execute certain NPU2 setup code (such as mapping an LPID to a device
> in NPU2) unconditionally if an Nvlink bridge is detected. However this
> cannot succeed on POWER8NVL machines and errors appear in dmesg. This is
> harmless as skiboot returns an error and the only place we check it is
> vfio-pci but that code does not get called on P8+ either.
> 
> This adds a check if pnv_npu2_xxx helpers are called on a machine with
> NPU2 which initializes pnv_phb::npu in pnv_npu2_init();
> pnv_phb::npu==NULL on POWER8/NVL (Naples).
> 
> [...]

Applied to powerpc/next.

[1/1] powerpc/powernv/npu: Do not attempt NPU2 setup on POWER8NVL NPU
      https://git.kernel.org/powerpc/c/b1198a88230f2ce50c271e22b82a8b8610b2eea9

cheers