1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Test cases for the drm_framebuffer functions
4  *
5  * Copyright (c) 2022 Maíra Canal <mairacanal@riseup.net>
6  */
7 
8 #include <kunit/test.h>
9 
10 #include <drm/drm_device.h>
11 #include <drm/drm_mode.h>
12 #include <drm/drm_fourcc.h>
13 #include <drm/drm_print.h>
14 
15 #include "../drm_crtc_internal.h"
16 
17 #define MIN_WIDTH 4
18 #define MAX_WIDTH 4096
19 #define MIN_HEIGHT 4
20 #define MAX_HEIGHT 4096
21 
22 struct drm_framebuffer_test {
23 	int buffer_created;
24 	struct drm_mode_fb_cmd2 cmd;
25 	const char *name;
26 };
27 
28 static const struct drm_framebuffer_test drm_framebuffer_create_cases[] = {
29 { .buffer_created = 1, .name = "ABGR8888 normal sizes",
30 	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_ABGR8888,
31 		 .handles = { 1, 0, 0 }, .pitches = { 4 * 600, 0, 0 },
32 	}
33 },
34 { .buffer_created = 1, .name = "ABGR8888 max sizes",
35 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
36 		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },
37 	}
38 },
39 { .buffer_created = 1, .name = "ABGR8888 pitch greater than min required",
40 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
41 		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH + 1, 0, 0 },
42 	}
43 },
44 { .buffer_created = 0, .name = "ABGR8888 pitch less than min required",
45 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
46 		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH - 1, 0, 0 },
47 	}
48 },
49 { .buffer_created = 0, .name = "ABGR8888 Invalid width",
50 	.cmd = { .width = MAX_WIDTH + 1, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
51 		 .handles = { 1, 0, 0 }, .pitches = { 4 * (MAX_WIDTH + 1), 0, 0 },
52 	}
53 },
54 { .buffer_created = 0, .name = "ABGR8888 Invalid buffer handle",
55 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
56 		 .handles = { 0, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },
57 	}
58 },
59 { .buffer_created = 0, .name = "No pixel format",
60 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = 0,
61 		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },
62 	}
63 },
64 { .buffer_created = 0, .name = "ABGR8888 Width 0",
65 	.cmd = { .width = 0, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
66 		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },
67 	}
68 },
69 { .buffer_created = 0, .name = "ABGR8888 Height 0",
70 	.cmd = { .width = MAX_WIDTH, .height = 0, .pixel_format = DRM_FORMAT_ABGR8888,
71 		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },
72 	}
73 },
74 { .buffer_created = 0, .name = "ABGR8888 Out of bound height * pitch combination",
75 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
76 		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX - 1, 0, 0 },
77 		 .pitches = { 4 * MAX_WIDTH, 0, 0 },
78 	}
79 },
80 { .buffer_created = 1, .name = "ABGR8888 Large buffer offset",
81 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
82 		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 },
83 		 .pitches = { 4 * MAX_WIDTH, 0, 0 },
84 	}
85 },
86 { .buffer_created = 1, .name = "ABGR8888 Set DRM_MODE_FB_MODIFIERS without modifiers",
87 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
88 		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 },
89 		 .pitches = { 4 * MAX_WIDTH, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
90 	}
91 },
92 { .buffer_created = 1, .name = "ABGR8888 Valid buffer modifier",
93 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
94 		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 },
95 		 .pitches = { 4 * MAX_WIDTH, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
96 		 .modifier = { AFBC_FORMAT_MOD_YTR, 0, 0 },
97 	}
98 },
99 { .buffer_created = 0,
100 	.name = "ABGR8888 Invalid buffer modifier(DRM_FORMAT_MOD_SAMSUNG_64_32_TILE)",
101 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
102 		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 },
103 		 .pitches = { 4 * MAX_WIDTH, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
104 		 .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, 0, 0 },
105 	}
106 },
107 { .buffer_created = 1, .name = "ABGR8888 Extra pitches without DRM_MODE_FB_MODIFIERS",
108 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
109 		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 },
110 		 .pitches = { 4 * MAX_WIDTH, 4 * MAX_WIDTH, 0 },
111 	}
112 },
113 { .buffer_created = 0, .name = "ABGR8888 Extra pitches with DRM_MODE_FB_MODIFIERS",
114 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
115 		 .handles = { 1, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
116 		 .pitches = { 4 * MAX_WIDTH, 4 * MAX_WIDTH, 0 },
117 	}
118 },
119 { .buffer_created = 1, .name = "NV12 Normal sizes",
120 	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_NV12,
121 		 .handles = { 1, 1, 0 }, .pitches = { 600, 600, 0 },
122 	}
123 },
124 { .buffer_created = 1, .name = "NV12 Max sizes",
125 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
126 		 .handles = { 1, 1, 0 }, .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },
127 	}
128 },
129 { .buffer_created = 0, .name = "NV12 Invalid pitch",
130 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
131 		 .handles = { 1, 1, 0 }, .pitches = { MAX_WIDTH, MAX_WIDTH - 1, 0 },
132 	}
133 },
134 { .buffer_created = 0, .name = "NV12 Invalid modifier/missing DRM_MODE_FB_MODIFIERS flag",
135 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
136 		 .handles = { 1, 1, 0 }, .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, 0, 0 },
137 		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },
138 	}
139 },
140 { .buffer_created = 0, .name = "NV12 different  modifier per-plane",
141 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
142 		 .handles = { 1, 1, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
143 		 .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, 0, 0 },
144 		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },
145 	}
146 },
147 { .buffer_created = 1, .name = "NV12 with DRM_FORMAT_MOD_SAMSUNG_64_32_TILE",
148 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
149 		 .handles = { 1, 1, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
150 		 .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE,
151 			 DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, 0 },
152 		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },
153 	}
154 },
155 { .buffer_created = 0, .name = "NV12 Valid modifiers without DRM_MODE_FB_MODIFIERS",
156 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
157 		 .handles = { 1, 1, 0 }, .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE,
158 						       DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, 0 },
159 		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },
160 	}
161 },
162 { .buffer_created = 0, .name = "NV12 Modifier for inexistent plane",
163 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
164 		 .handles = { 1, 1, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
165 		 .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, DRM_FORMAT_MOD_SAMSUNG_64_32_TILE,
166 			       DRM_FORMAT_MOD_SAMSUNG_64_32_TILE },
167 		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },
168 	}
169 },
170 { .buffer_created = 0, .name = "NV12 Handle for inexistent plane",
171 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
172 		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,
173 		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },
174 	}
175 },
176 { .buffer_created = 1, .name = "NV12 Handle for inexistent plane without DRM_MODE_FB_MODIFIERS",
177 	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_NV12,
178 		 .handles = { 1, 1, 1 }, .pitches = { 600, 600, 600 },
179 	}
180 },
181 { .buffer_created = 1, .name = "YVU420 DRM_MODE_FB_MODIFIERS set without modifier",
182 	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_YVU420,
183 		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,
184 		 .pitches = { 600, 300, 300 },
185 	}
186 },
187 { .buffer_created = 1, .name = "YVU420 Normal sizes",
188 	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_YVU420,
189 		 .handles = { 1, 1, 1 }, .pitches = { 600, 300, 300 },
190 	}
191 },
192 { .buffer_created = 1, .name = "YVU420 Max sizes",
193 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
194 		 .handles = { 1, 1, 1 }, .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2),
195 						      DIV_ROUND_UP(MAX_WIDTH, 2) },
196 	}
197 },
198 { .buffer_created = 0, .name = "YVU420 Invalid pitch",
199 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
200 		 .handles = { 1, 1, 1 }, .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2) - 1,
201 						      DIV_ROUND_UP(MAX_WIDTH, 2) },
202 	}
203 },
204 { .buffer_created = 1, .name = "YVU420 Different pitches",
205 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
206 		 .handles = { 1, 1, 1 }, .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2) + 1,
207 						      DIV_ROUND_UP(MAX_WIDTH, 2) + 7 },
208 	}
209 },
210 { .buffer_created = 1, .name = "YVU420 Different buffer offsets/pitches",
211 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
212 		 .handles = { 1, 1, 1 }, .offsets = { MAX_WIDTH, MAX_WIDTH  +
213 			 MAX_WIDTH * MAX_HEIGHT, MAX_WIDTH  + 2 * MAX_WIDTH * MAX_HEIGHT },
214 		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2) + 1,
215 			 DIV_ROUND_UP(MAX_WIDTH, 2) + 7 },
216 	}
217 },
218 { .buffer_created = 0,
219 	.name = "YVU420 Modifier set just for plane 0, without DRM_MODE_FB_MODIFIERS",
220 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
221 		 .handles = { 1, 1, 1 }, .modifier = { AFBC_FORMAT_MOD_SPARSE, 0, 0 },
222 		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },
223 	}
224 },
225 { .buffer_created = 0,
226 	.name = "YVU420 Modifier set just for planes 0, 1, without DRM_MODE_FB_MODIFIERS",
227 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
228 		 .handles = { 1, 1, 1 },
229 		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE, 0 },
230 		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },
231 	}
232 },
233 { .buffer_created = 0,
234 	.name = "YVU420 Modifier set just for plane 0, 1, with DRM_MODE_FB_MODIFIERS",
235 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
236 		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,
237 		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE, 0 },
238 		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },
239 	}
240 },
241 { .buffer_created = 1, .name = "YVU420 Valid modifier",
242 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
243 		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,
244 		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE,
245 			 AFBC_FORMAT_MOD_SPARSE },
246 		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },
247 	}
248 },
249 { .buffer_created = 0, .name = "YVU420 Different modifiers per plane",
250 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
251 		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,
252 		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE | AFBC_FORMAT_MOD_YTR,
253 			       AFBC_FORMAT_MOD_SPARSE },
254 		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },
255 	}
256 },
257 { .buffer_created = 0, .name = "YVU420 Modifier for inexistent plane",
258 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
259 		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,
260 		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE,
261 			 AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE },
262 		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },
263 	}
264 },
265 { .buffer_created = 1, .name = "X0L2 Normal sizes",
266 	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_X0L2,
267 		 .handles = { 1, 0, 0 }, .pitches = { 1200, 0, 0 }
268 	}
269 },
270 { .buffer_created = 1, .name = "X0L2 Max sizes",
271 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,
272 		 .handles = { 1, 0, 0 }, .pitches = { 2 * MAX_WIDTH, 0, 0 }
273 	}
274 },
275 { .buffer_created = 0, .name = "X0L2 Invalid pitch",
276 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,
277 		 .handles = { 1, 0, 0 }, .pitches = { 2 * MAX_WIDTH - 1, 0, 0 }
278 	}
279 },
280 { .buffer_created = 1, .name = "X0L2 Pitch greater than minimum required",
281 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,
282 		 .handles = { 1, 0, 0 }, .pitches = { 2 * MAX_WIDTH + 1, 0, 0 }
283 	}
284 },
285 { .buffer_created = 0, .name = "X0L2 Handle for inexistent plane",
286 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,
287 		 .handles = { 1, 1, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
288 		 .pitches = { 2 * MAX_WIDTH + 1, 0, 0 }
289 	}
290 },
291 { .buffer_created = 1,
292 	.name = "X0L2 Offset for inexistent plane, without DRM_MODE_FB_MODIFIERS set",
293 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,
294 		 .handles = { 1, 0, 0 }, .offsets = { 0, 0, 3 },
295 		 .pitches = { 2 * MAX_WIDTH + 1, 0, 0 }
296 	}
297 },
298 { .buffer_created = 0, .name = "X0L2 Modifier without DRM_MODE_FB_MODIFIERS set",
299 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,
300 		 .handles = { 1, 0, 0 }, .pitches = { 2 * MAX_WIDTH + 1, 0, 0 },
301 		 .modifier = { AFBC_FORMAT_MOD_SPARSE, 0, 0 },
302 	}
303 },
304 { .buffer_created = 1, .name = "X0L2 Valid modifier",
305 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,
306 		 .handles = { 1, 0, 0 }, .pitches = { 2 * MAX_WIDTH + 1, 0, 0 },
307 		 .modifier = { AFBC_FORMAT_MOD_SPARSE, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
308 	}
309 },
310 { .buffer_created = 0, .name = "X0L2 Modifier for inexistent plane",
311 	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT,
312 		 .pixel_format = DRM_FORMAT_X0L2, .handles = { 1, 0, 0 },
313 		 .pitches = { 2 * MAX_WIDTH + 1, 0, 0 },
314 		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE, 0 },
315 		 .flags = DRM_MODE_FB_MODIFIERS,
316 	}
317 },
318 };
319 
320 static struct drm_framebuffer *fb_create_mock(struct drm_device *dev,
321 					      struct drm_file *file_priv,
322 					      const struct drm_mode_fb_cmd2 *mode_cmd)
323 {
324 	int *buffer_created = dev->dev_private;
325 	*buffer_created = 1;
326 	return ERR_PTR(-EINVAL);
327 }
328 
329 static struct drm_mode_config_funcs mock_config_funcs = {
330 	.fb_create = fb_create_mock,
331 };
332 
333 static int drm_framebuffer_test_init(struct kunit *test)
334 {
335 	struct drm_device *mock;
336 
337 	mock = kunit_kzalloc(test, sizeof(*mock), GFP_KERNEL);
338 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, mock);
339 
340 	mock->mode_config.min_width = MIN_WIDTH;
341 	mock->mode_config.max_width = MAX_WIDTH;
342 	mock->mode_config.min_height = MIN_HEIGHT;
343 	mock->mode_config.max_height = MAX_HEIGHT;
344 	mock->mode_config.funcs = &mock_config_funcs;
345 
346 	test->priv = mock;
347 	return 0;
348 }
349 
350 static void drm_test_framebuffer_create(struct kunit *test)
351 {
352 	const struct drm_framebuffer_test *params = test->param_value;
353 	struct drm_device *mock = test->priv;
354 	int buffer_created = 0;
355 
356 	mock->dev_private = &buffer_created;
357 	drm_internal_framebuffer_create(mock, &params->cmd, NULL);
358 	KUNIT_EXPECT_EQ(test, params->buffer_created, buffer_created);
359 }
360 
361 static void drm_framebuffer_test_to_desc(const struct drm_framebuffer_test *t, char *desc)
362 {
363 	strcpy(desc, t->name);
364 }
365 
366 KUNIT_ARRAY_PARAM(drm_framebuffer_create, drm_framebuffer_create_cases,
367 		  drm_framebuffer_test_to_desc);
368 
369 static struct kunit_case drm_framebuffer_tests[] = {
370 	KUNIT_CASE_PARAM(drm_test_framebuffer_create, drm_framebuffer_create_gen_params),
371 	{ }
372 };
373 
374 static struct kunit_suite drm_framebuffer_test_suite = {
375 	.name = "drm_framebuffer",
376 	.init = drm_framebuffer_test_init,
377 	.test_cases = drm_framebuffer_tests,
378 };
379 
380 kunit_test_suite(drm_framebuffer_test_suite);
381 
382 MODULE_LICENSE("GPL");
383