nx2: unmap GPU memory the game frees

nx2:gpu 213 (NormalUnmapGpuMemory4K) and 102 (destroy GPU-accessible
memory) were no-ops, so Eden kept freed memory mapped for the GPU. Title 4
frees its customization-room memory right after saving and reuses it as
ordinary heap; pending GPU->CPU write-backs for the old buffers then landed on
the new objects, and two threads crashed on garbage pointers ~5 s later
(the post-customization freeze).

Unmap the range from every address space (the GMMU unmap drops cached
buffers/images and their pending downloads), keep the registry's mapping
list in step, re-map 211 requests even at the memory's own address, and
drop freed regions from the semaphore mirror table, which every 8 KiB
allocation used to fill for good after 32 entries.

0 files changed, 0 insertions, 0 deletions