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| author | Thomas Hellström <thomas.hellstrom@linux.intel.com> | 2025-02-28 08:30:55 +0100 |
|---|---|---|
| committer | Thomas Hellström <thomas.hellstrom@linux.intel.com> | 2025-03-05 08:49:47 +0100 |
| commit | 03c346d4d0d85d210d549d43c8cfb3dfb7f20e0a (patch) | |
| tree | d46ddff2729ba2a01f2667ce2225b38845b7d522 /tools/perf/scripts/python/stackcollapse.py | |
| parent | 5488bec96bccbd87335921338f8dc38b87db7d2c (diff) | |
drm/xe/vm: Validate userptr during gpu vma prefetching
If a userptr vma subject to prefetching was already invalidated
or invalidated during the prefetch operation, the operation would
repeatedly return -EAGAIN which would typically cause an infinite
loop.
Validate the userptr to ensure this doesn't happen.
v2:
- Don't fallthrough from UNMAP to PREFETCH (Matthew Brost)
Fixes: 5bd24e78829a ("drm/xe/vm: Subclass userptr vmas")
Fixes: 617eebb9c480 ("drm/xe: Fix array of binds")
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: <stable@vger.kernel.org> # v6.9+
Suggested-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250228073058.59510-2-thomas.hellstrom@linux.intel.com
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions