|
|
mappings into the service
The pin table became the primary VA->PA store once push-buffer regions and
bridged client mappings started adding thousands of pages per boot; at
8192 slots with an 8-probe window, inserts were silently dropped and
lookups missed at half load. 32768 slots and a 32-probe window keep the
mapped set intact.
tools/guest-diag/{guest_pmap_all.py,bridge_sems.sh} translate the CUDA
client's /dev/nvidia* mappings through the guest's own pagemap and inject
each present page into the service as a sysmem pin. With the client's
semaphore pages pinned the service applies their releases into the page
the client polls (verified: applied 67 -> 109, misses stop growing for
those VAs), where before every write went to the vidmem shadow.
|
