diff options
| author | Philip Yang <[email protected]> | 2022-07-26 15:13:30 -0400 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2022-09-13 12:54:23 -0400 |
| commit | c969c5fd21fd700b126aa139ec57875697946474 (patch) | |
| tree | 91985e7bd6a9a223fa924488837281c5204187d8 /tools/perf/scripts/python/bin/stackcollapse-report | |
| parent | e1f84eef313f4820cca068a238c645d0a38c6a9b (diff) | |
drm/amdkfd: Remove prefault before migrating to VRAM
Prefaulting potentially allocates system memory pages before a
migration. This adds unnecessary overhead. Instead we can skip
unallocated pages in the migration and just point migrate->dst to a
0-initialized VRAM page directly. Then the VRAM page will be inserted
to the PTE. A subsequent CPU page fault will migrate the page back to
system memory.
Signed-off-by: Philip Yang <[email protected]>
Reviewed-by: Felix Kuehling <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-report')
0 files changed, 0 insertions, 0 deletions