diff options
| author | Satyanarayana K V P <satyanarayana.k.v.p@intel.com> | 2025-10-08 14:45:28 -0700 |
|---|---|---|
| committer | Matthew Brost <matthew.brost@intel.com> | 2025-10-09 03:24:07 -0700 |
| commit | 673167d9f08378b7c619e332fe9eea230425d330 (patch) | |
| tree | 5dd6eea5f4ac2ca1f0cb32d179f01a26aa00fcbb /tools/perf/scripts/python/stackcollapse.py | |
| parent | 3b56911960b3c938d2eed70526ef4bc496520123 (diff) | |
| download | linux-673167d9f08378b7c619e332fe9eea230425d330.tar.gz linux-673167d9f08378b7c619e332fe9eea230425d330.zip | |
drm/xe: Use PPGTT addresses for TLB invalidation to avoid GGTT fixups
The migrate VM builds the CCS metadata save/restore batch buffer (BB) in
advance and retains it so the GuC can submit it directly when saving a
VM’s state.
When a VM migrates between VFs, the GGTT base can change. Any GGTT-based
addresses embedded in the BB would then have to be parsed and patched.
Use PPGTT addresses in the BB (including for TLB invalidation) so the BB
remains GGTT-agnostic and requires no address fixups during migration.
Signed-off-by: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20251008214532.3442967-31-matthew.brost@intel.com
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions