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-rw-r--r--drivers/gpu/drm/drm_gem_shmem_helper.c15
-rw-r--r--drivers/gpu/drm/tests/drm_gem_shmem_test.c4
-rw-r--r--include/drm/drm_gem_shmem_helper.h1
3 files changed, 19 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c
index d377802b9dfd..de73c8ab8cca 100644
--- a/drivers/gpu/drm/drm_gem_shmem_helper.c
+++ b/drivers/gpu/drm/drm_gem_shmem_helper.c
@@ -947,6 +947,21 @@ int drm_gem_shmem_madvise(struct drm_gem_shmem_object *shmem, int madv)
return ret;
}
EXPORT_SYMBOL_IF_KUNIT(drm_gem_shmem_madvise);
+
+int drm_gem_shmem_purge(struct drm_gem_shmem_object *shmem)
+{
+ struct drm_gem_object *obj = &shmem->base;
+ int ret;
+
+ ret = dma_resv_lock_interruptible(obj->resv, NULL);
+ if (ret)
+ return ret;
+ drm_gem_shmem_purge_locked(shmem);
+ dma_resv_unlock(obj->resv);
+
+ return 0;
+}
+EXPORT_SYMBOL_IF_KUNIT(drm_gem_shmem_purge);
#endif
MODULE_DESCRIPTION("DRM SHMEM memory-management helpers");
diff --git a/drivers/gpu/drm/tests/drm_gem_shmem_test.c b/drivers/gpu/drm/tests/drm_gem_shmem_test.c
index d639848e3c8e..4b459f21acfd 100644
--- a/drivers/gpu/drm/tests/drm_gem_shmem_test.c
+++ b/drivers/gpu/drm/tests/drm_gem_shmem_test.c
@@ -340,7 +340,9 @@ static void drm_gem_shmem_test_purge(struct kunit *test)
ret = drm_gem_shmem_is_purgeable(shmem);
KUNIT_EXPECT_TRUE(test, ret);
- drm_gem_shmem_purge_locked(shmem);
+ ret = drm_gem_shmem_purge(shmem);
+ KUNIT_ASSERT_EQ(test, ret, 0);
+
KUNIT_EXPECT_NULL(test, shmem->pages);
KUNIT_EXPECT_NULL(test, shmem->sgt);
KUNIT_EXPECT_EQ(test, shmem->madv, -1);
diff --git a/include/drm/drm_gem_shmem_helper.h b/include/drm/drm_gem_shmem_helper.h
index dd9a7c67195e..5ccdae21b94a 100644
--- a/include/drm/drm_gem_shmem_helper.h
+++ b/include/drm/drm_gem_shmem_helper.h
@@ -308,6 +308,7 @@ 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__ */