On Wed, 2 Sep 2020 13:51:38 +1000, Oliver O'Halloran wrote:

The corresponding definitions were deleted in commit 3d5134ee8341
("[POWERPC] Rewrite IO allocation & mapping on powerpc64") which
was merged a mere 13 years ago.

Applied to powerpc/next.

[1/1] powerpc/pci: Remove unimplemented prototypes
      https://git.kernel.org/powerpc/c/b3abe590c80e0ba55b6fce48762232d90dbc37a5

cheers