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| author | Thomas Hellström <[email protected]> | 2025-02-28 07:30:55 +0000 |
|---|---|---|
| committer | Rodrigo Vivi <[email protected]> | 2025-03-05 19:24:48 +0000 |
| commit | e775e2a060d99180edc5366fb9f4299d0f07b66c (patch) | |
| tree | fafd14c590f7f55db6947a3d46f6330f6f49038b /net/switchdev/switchdev.c | |
| parent | drm/xe: Fix GT "for each engine" workarounds (diff) | |
| download | kernel-e775e2a060d99180edc5366fb9f4299d0f07b66c.tar.gz kernel-e775e2a060d99180edc5366fb9f4299d0f07b66c.zip | |
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 <[email protected]>
Cc: <[email protected]> # v6.9+
Suggested-by: Matthew Brost <[email protected]>
Signed-off-by: Thomas Hellström <[email protected]>
Reviewed-by: Matthew Brost <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit 03c346d4d0d85d210d549d43c8cfb3dfb7f20e0a)
Signed-off-by: Rodrigo Vivi <[email protected]>
Diffstat (limited to 'net/switchdev/switchdev.c')
0 files changed, 0 insertions, 0 deletions