diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2025-12-12 17:00:36 +0100 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2026-03-04 07:20:55 -0500 |
| commit | cdf8bbbd9017adcfb91ad9a902198d4b507719a9 (patch) | |
| tree | c933374b1edecfc09116ecb26aa8cca2d848c4d3 /include | |
| parent | 9cc77691b5fd615625955cedf726da57543088f1 (diff) | |
drm/tests: shmem: Hold reservation lock around purge
[ Upstream commit 3f41307d589c2f25d556d47b165df808124cd0c4 ]
Acquire and release the GEM object's reservation lock around calls
to the object's purge operation. The tests use
drm_gem_shmem_purge_locked(), which led to errors such as show below.
[ 58.709128] WARNING: CPU: 1 PID: 1354 at drivers/gpu/drm/drm_gem_shmem_helper.c:515 drm_gem_shmem_purge_locked+0x51c/0x740
Only export the new helper drm_gem_shmem_purge() for Kunit tests.
This is not an interface for regular drivers.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 954907f7147d ("drm/shmem-helper: Refactor locked/unlocked functions")
Cc: dri-devel@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v6.16+
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patch.msgid.link/20251212160317.287409-6-tzimmermann@suse.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/drm/drm_gem_shmem_helper.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/drm/drm_gem_shmem_helper.h b/include/drm/drm_gem_shmem_helper.h index 1b937166457f..6802896e30c7 100644 --- a/include/drm/drm_gem_shmem_helper.h +++ b/include/drm/drm_gem_shmem_helper.h @@ -309,6 +309,7 @@ struct drm_gem_object *drm_gem_shmem_prime_import_no_map(struct drm_device *dev, int drm_gem_shmem_vmap(struct drm_gem_shmem_object *shmem, struct iosys_map *map); void drm_gem_shmem_vunmap(struct drm_gem_shmem_object *shmem, struct iosys_map *map); int drm_gem_shmem_madvise(struct drm_gem_shmem_object *shmem, int madv); +int drm_gem_shmem_purge(struct drm_gem_shmem_object *shmem); #endif #endif /* __DRM_GEM_SHMEM_HELPER_H__ */ |