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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2025-12-12 19:00:35 +0300 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2026-03-04 15:21:01 +0300 |
| commit | 07cfcab370da06f26c273306571cbb0bfa3b9c52 (patch) | |
| tree | 4244ad6bb26f664ac4378eb34b5c9c94300261d5 /include/drm | |
| parent | e7b7022f11d3cf281c726117478696b83681bf11 (diff) | |
| download | linux-07cfcab370da06f26c273306571cbb0bfa3b9c52.tar.xz | |
drm/tests: shmem: Hold reservation lock around madvise
[ Upstream commit 607d07d8cc0b835a8701259f08a03dc149b79b4f ]
Acquire and release the GEM object's reservation lock around calls
to the object's madvide operation. The tests use
drm_gem_shmem_madvise_locked(), which led to errors such as show below.
[ 58.339389] WARNING: CPU: 1 PID: 1352 at drivers/gpu/drm/drm_gem_shmem_helper.c:499 drm_gem_shmem_madvise_locked+0xde/0x140
Only export the new helper drm_gem_shmem_madvise() 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/20251212160317.287409-5-tzimmermann@suse.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/drm')
| -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 6924ee226655..3dd93e2df709 100644 --- a/include/drm/drm_gem_shmem_helper.h +++ b/include/drm/drm_gem_shmem_helper.h @@ -310,6 +310,7 @@ struct drm_gem_object *drm_gem_shmem_prime_import_no_map(struct drm_device *dev, #if IS_ENABLED(CONFIG_KUNIT) 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); #endif #endif /* __DRM_GEM_SHMEM_HELPER_H__ */ |