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| author | Matthew Brost <matthew.brost@intel.com> | 2024-04-01 15:19:11 -0700 |
|---|---|---|
| committer | Lucas De Marchi <lucas.demarchi@intel.com> | 2024-04-04 08:32:34 -0500 |
| commit | 77a011012d7d8b98368a763bf74317c6d5ce00f1 (patch) | |
| tree | cf23ce6f8f8d8f9296c7bde9830961a71f06842c /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 3edd52bead30879644bb69fe4aafde67d2cd8512 (diff) | |
drm/xe: Use ordered wq for preempt fence waiting
Preempt fences can sleep waiting for an exec queue suspend operation to
complete. If the system_unbound_wq is used for waiting and the number of
waiters exceeds max_active this will result in other users of the
system_unbound_wq getting starved. Use a device private work queue for
preempt fences to avoid starvation of the system_unbound_wq.
Even though suspend operations can complete out-of-order, all suspend
operations within a VM need to complete before the preempt rebind worker
can start. With that, use a device private ordered wq for preempt fence
waiting.
v2:
- Add comment about cleanup on failure (Matt R)
- Update commit message (Lucas)
Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240401221913.139672-2-matthew.brost@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
(cherry picked from commit 37c15c4aae1fe3f67efd2641db8d8c25c2d524ab)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions