diff options
| author | Rob Clark <robdclark@chromium.org> | 2025-06-29 13:12:46 -0700 |
|---|---|---|
| committer | Rob Clark <robin.clark@oss.qualcomm.com> | 2025-07-04 11:09:43 -0700 |
| commit | 02070f04987524caf77d4bf4c94ebceb783b7bcc (patch) | |
| tree | e0ac08daca4eca02f3615eec411557f4903499f5 /include | |
| parent | drm/gpuvm: Add locking helpers (diff) | |
| download | linux-02070f04987524caf77d4bf4c94ebceb783b7bcc.tar.gz linux-02070f04987524caf77d4bf4c94ebceb783b7bcc.zip | |
drm/gem: Add ww_acquire_ctx support to drm_gem_lru_scan()
If the callback is going to have to attempt to grab more locks, it is
useful to have an ww_acquire_ctx to avoid locking order problems.
Why not use the drm_exec helper instead? Mainly because (a) where
ww_acquire_init() is called is awkward, and (b) we don't really
need to retry after backoff, we can just move on to the next object.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Tested-by: Antonino Maniscalco <antomani103@gmail.com>
Reviewed-by: Antonino Maniscalco <antomani103@gmail.com>
Patchwork: https://patchwork.freedesktop.org/patch/661463/
Diffstat (limited to 'include')
| -rw-r--r-- | include/drm/drm_gem.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h index 1a79ec3fe45c..d3a7b43e2c63 100644 --- a/include/drm/drm_gem.h +++ b/include/drm/drm_gem.h @@ -560,10 +560,12 @@ void drm_gem_lru_init(struct drm_gem_lru *lru, struct mutex *lock); void drm_gem_lru_remove(struct drm_gem_object *obj); void drm_gem_lru_move_tail_locked(struct drm_gem_lru *lru, struct drm_gem_object *obj); void drm_gem_lru_move_tail(struct drm_gem_lru *lru, struct drm_gem_object *obj); -unsigned long drm_gem_lru_scan(struct drm_gem_lru *lru, - unsigned int nr_to_scan, - unsigned long *remaining, - bool (*shrink)(struct drm_gem_object *obj)); +unsigned long +drm_gem_lru_scan(struct drm_gem_lru *lru, + unsigned int nr_to_scan, + unsigned long *remaining, + bool (*shrink)(struct drm_gem_object *obj, struct ww_acquire_ctx *ticket), + struct ww_acquire_ctx *ticket); int drm_gem_evict_locked(struct drm_gem_object *obj); |