1 // SPDX-License-Identifier: GPL-2.0
10 #include <linux/dma-buf.h>
11 #include <linux/iosys-map.h>
45 	struct drm_device *drm_dev = test->priv;  in drm_gem_shmem_test_obj_create()
50 	KUNIT_EXPECT_EQ(test, shmem->base.size, TEST_SIZE);  in drm_gem_shmem_test_obj_create()
51 	KUNIT_EXPECT_NOT_NULL(test, shmem->base.filp);  in drm_gem_shmem_test_obj_create()
52 	KUNIT_EXPECT_NOT_NULL(test, shmem->base.funcs);  in drm_gem_shmem_test_obj_create()
58  * Test creating a shmem GEM object from a scatter/gather table exported
59  * via a DMA-BUF. The test case succeed if the GEM object is successfully
61  * attribute pointing to the scatter/gather table that has been imported.
65 	struct drm_device *drm_dev = test->priv;  in drm_gem_shmem_test_obj_create_private()
74 	/* Create a mock scatter/gather table */  in drm_gem_shmem_test_obj_create_private()
90 	sg_init_one(sgt->sgl, buf, TEST_SIZE);  in drm_gem_shmem_test_obj_create_private()
93 	 * Set the DMA mask to 64-bits and map the sgtables  in drm_gem_shmem_test_obj_create_private()
97 	ret = dma_set_mask(drm_dev->dev, DMA_BIT_MASK(64));  in drm_gem_shmem_test_obj_create_private()
100 	ret = dma_map_sgtable(drm_dev->dev, sgt, DMA_BIDIRECTIONAL, 0);  in drm_gem_shmem_test_obj_create_private()
103 	/* Init a mock DMA-BUF */  in drm_gem_shmem_test_obj_create_private()
109 	KUNIT_EXPECT_EQ(test, gem_obj->size, TEST_SIZE);  in drm_gem_shmem_test_obj_create_private()
110 	KUNIT_EXPECT_NULL(test, gem_obj->filp);  in drm_gem_shmem_test_obj_create_private()
111 	KUNIT_EXPECT_NOT_NULL(test, gem_obj->funcs);  in drm_gem_shmem_test_obj_create_private()
113 	/* The scatter/gather table will be freed by drm_gem_shmem_free */  in drm_gem_shmem_test_obj_create_private()
118 	KUNIT_EXPECT_PTR_EQ(test, shmem->sgt, sgt);  in drm_gem_shmem_test_obj_create_private()
130 	struct drm_device *drm_dev = test->priv;  in drm_gem_shmem_test_pin_pages()
136 	KUNIT_EXPECT_NULL(test, shmem->pages);  in drm_gem_shmem_test_pin_pages()
137 	KUNIT_EXPECT_EQ(test, shmem->pages_use_count, 0);  in drm_gem_shmem_test_pin_pages()
144 	KUNIT_ASSERT_NOT_NULL(test, shmem->pages);  in drm_gem_shmem_test_pin_pages()
145 	KUNIT_EXPECT_EQ(test, shmem->pages_use_count, 1);  in drm_gem_shmem_test_pin_pages()
147 	for (i = 0; i < (shmem->base.size >> PAGE_SHIFT); i++)  in drm_gem_shmem_test_pin_pages()
148 		KUNIT_ASSERT_NOT_NULL(test, shmem->pages[i]);  in drm_gem_shmem_test_pin_pages()
151 	KUNIT_EXPECT_NULL(test, shmem->pages);  in drm_gem_shmem_test_pin_pages()
152 	KUNIT_EXPECT_EQ(test, shmem->pages_use_count, 0);  in drm_gem_shmem_test_pin_pages()
163 	struct drm_device *drm_dev = test->priv;  in drm_gem_shmem_test_vmap()
170 	KUNIT_EXPECT_NULL(test, shmem->vaddr);  in drm_gem_shmem_test_vmap()
171 	KUNIT_EXPECT_EQ(test, shmem->vmap_use_count, 0);  in drm_gem_shmem_test_vmap()
178 	KUNIT_ASSERT_NOT_NULL(test, shmem->vaddr);  in drm_gem_shmem_test_vmap()
180 	KUNIT_EXPECT_EQ(test, shmem->vmap_use_count, 1);  in drm_gem_shmem_test_vmap()
187 	KUNIT_EXPECT_NULL(test, shmem->vaddr);  in drm_gem_shmem_test_vmap()
188 	KUNIT_EXPECT_EQ(test, shmem->vmap_use_count, 0);  in drm_gem_shmem_test_vmap()
192  * Test exporting a scatter/gather table of pinned pages suitable for
194  * scatter/gather table large enough to accommodate the backing memory
199 	struct drm_device *drm_dev = test->priv;  in drm_gem_shmem_test_get_pages_sgt()
217 	KUNIT_EXPECT_NULL(test, shmem->sgt);  in drm_gem_shmem_test_get_pages_sgt()
224 		len += sg->length;  in drm_gem_shmem_test_get_pages_sgt()
231  * Test pinning pages and exporting a scatter/gather table suitable for
233  * backing pages are pinned and a scatter/gather table large enough to
238 	struct drm_device *drm_dev = test->priv;  in drm_gem_shmem_test_get_sg_table()
250 	/* The scatter/gather table will be freed by drm_gem_shmem_free */  in drm_gem_shmem_test_get_sg_table()
253 	KUNIT_ASSERT_NOT_NULL(test, shmem->pages);  in drm_gem_shmem_test_get_sg_table()
254 	KUNIT_EXPECT_EQ(test, shmem->pages_use_count, 1);  in drm_gem_shmem_test_get_sg_table()
255 	KUNIT_EXPECT_PTR_EQ(test, sgt, shmem->sgt);  in drm_gem_shmem_test_get_sg_table()
259 		len += sg->length;  in drm_gem_shmem_test_get_sg_table()
273 	struct drm_device *drm_dev = test->priv;  in drm_gem_shmem_test_madvise()
279 	KUNIT_ASSERT_EQ(test, shmem->madv, 0);  in drm_gem_shmem_test_madvise()
286 	KUNIT_ASSERT_EQ(test, shmem->madv, 1);  in drm_gem_shmem_test_madvise()
289 	ret = drm_gem_shmem_madvise(shmem, -1);  in drm_gem_shmem_test_madvise()
291 	KUNIT_ASSERT_EQ(test, shmem->madv, -1);  in drm_gem_shmem_test_madvise()
296 	KUNIT_ASSERT_EQ(test, shmem->madv, -1);  in drm_gem_shmem_test_madvise()
302  * value and call drm_gem_shmem_get_pages_sgt() to pin and dma-map the
308 	struct drm_device *drm_dev = test->priv;  in drm_gem_shmem_test_purge()
325 	/* The scatter/gather table will be freed by drm_gem_shmem_free */  in drm_gem_shmem_test_purge()
333 	KUNIT_EXPECT_NULL(test, shmem->pages);  in drm_gem_shmem_test_purge()
334 	KUNIT_EXPECT_NULL(test, shmem->sgt);  in drm_gem_shmem_test_purge()
335 	KUNIT_EXPECT_EQ(test, shmem->madv, -1);  in drm_gem_shmem_test_purge()
356 	test->priv = drm_dev;  in drm_gem_shmem_test_init()