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| author | Matthew Brost <matthew.brost@intel.com> | 2025-10-31 16:40:45 -0700 |
|---|---|---|
| committer | Matthew Brost <matthew.brost@intel.com> | 2025-11-04 08:20:46 -0800 |
| commit | adda4e855ab6409a3edaa585293f1f2069ab7299 (patch) | |
| tree | 9d3f0e376be6e6fd80250ec6f287cdb0c893f3dc /scripts/lib | |
| parent | a4ff26b7c8ef38e4dd34f77cbcd73576fdde6dd4 (diff) | |
drm/xe: Enforce correct user fence signaling order using
Prevent application hangs caused by out-of-order fence signaling when
user fences are attached. Use drm_syncobj (via dma-fence-chain) to
guarantee that each user fence signals in order, regardless of the
signaling order of the attached fences. Ensure user fence writebacks to
user space occur in the correct sequence.
v7:
- Skip drm_syncbj create of error (CI)
Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patch.msgid.link/20251031234050.3043507-2-matthew.brost@intel.com
Diffstat (limited to 'scripts/lib')
0 files changed, 0 insertions, 0 deletions