Piotr Piórkowski authored Apr 03, 2024 and Lukasz Laguna committed Apr 08, 2024

Currently in IGT we have a library intel_mmio for simple MMIO operations
on intel GPU devices, but it is limited only to accessing registers,
has a lot of legacy code related to the i915 and offers no support for
multi tile.
Let's reuse the memory mapping from the previous library and add separate
helpers, dedicated to Xe, for registers and GGTT access that support multi
tile.

v2:
 - add missing std ifndef/define in header lib/xe_mmio.h
v3:
- remove vf_id from struct xe_mmio
- rename reg to offset in funcs params
- change return type for xe_gt_get_tile_id

Signed-off-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
Cc: Kamil Konieczny <kamil.konieczny@linux.intel.com>
Cc: Lukasz Laguna <lukasz.laguna@intel.com>
Reviewed-by: Lukasz Laguna <lukasz.laguna@intel.com>