Name
drm_mm_for_each_hole —
iterator to walk over all holes
Synopsis
drm_mm_for_each_hole ( | entry, |
| | mm, |
| | hole_start, |
| | hole_end); |
Arguments
entry
drm_mm_node used internally to track progress
mm
drm_mm allocator to walk
hole_start
ulong variable to assign the hole start to on each iteration
hole_end
ulong variable to assign the hole end to on each iteration
Description
This iterator walks over all holes in the range allocator. It is implemented
with list_for_each, so not save against removal of elements. entry is used
internally and will not reflect a real drm_mm_node for the very first hole.
Hence users of this iterator may not access it.
Implementation Note
We need to inline list_for_each_entry in order to be able to set hole_start
and hole_end on each iteration while keeping the macro sane.
The __drm_mm_for_each_hole version is similar, but with added support for
going backwards.