1 /*
2  * Copyright © 2013,2014 Intel Corporation
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21  * IN THE SOFTWARE.
22  *
23  */
24 
25 #include "igt.h"
26 #include <math.h>
27 #include <sys/stat.h>
28 
29 IGT_TEST_DESCRIPTION("Test display panel fitting");
30 
31 typedef struct {
32 	int drm_fd;
33 	igt_display_t display;
34 
35 	struct igt_fb fb1;
36 	struct igt_fb fb2;
37 
38 	igt_plane_t *plane1;
39 	igt_plane_t *plane2;
40 } data_t;
41 
cleanup_crtc(data_t * data)42 static void cleanup_crtc(data_t *data)
43 {
44 	igt_display_reset(&data->display);
45 	igt_remove_fb(data->drm_fd, &data->fb1);
46 	igt_remove_fb(data->drm_fd, &data->fb2);
47 }
48 
prepare_crtc(data_t * data,igt_output_t * output,enum pipe pipe,igt_plane_t * plane,drmModeModeInfo * mode,enum igt_commit_style s)49 static void prepare_crtc(data_t *data, igt_output_t *output, enum pipe pipe,
50 			igt_plane_t *plane, drmModeModeInfo *mode, enum igt_commit_style s)
51 {
52 	igt_display_t *display = &data->display;
53 
54 	igt_output_override_mode(output, mode);
55 	igt_output_set_pipe(output, pipe);
56 
57 	/* before allocating, free if any older fb */
58 	igt_remove_fb(data->drm_fd, &data->fb1);
59 
60 	/* allocate fb for plane 1 */
61 	igt_create_pattern_fb(data->drm_fd,
62 			      mode->hdisplay, mode->vdisplay,
63 			      DRM_FORMAT_XRGB8888,
64 			      LOCAL_DRM_FORMAT_MOD_NONE,
65 			      &data->fb1);
66 
67 	/*
68 	 * We always set the primary plane to actually enable the pipe as
69 	 * there's no way (that works) to light up a pipe with only a sprite
70 	 * plane enabled at the moment.
71 	 */
72 	if (plane->type != DRM_PLANE_TYPE_PRIMARY) {
73 		igt_plane_t *primary;
74 
75 		primary = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY);
76 		igt_plane_set_fb(primary, &data->fb1);
77 	}
78 
79 	igt_plane_set_fb(plane, &data->fb1);
80 	igt_display_commit2(display, s);
81 }
82 
test_panel_fitting(data_t * d)83 static void test_panel_fitting(data_t *d)
84 {
85 	igt_display_t *display = &d->display;
86 	igt_output_t *output;
87 	enum pipe pipe;
88 	int valid_tests = 0;
89 
90 	for_each_pipe_with_valid_output(display, pipe, output) {
91 		drmModeModeInfo *mode, native_mode;
92 		uint32_t devid = intel_get_drm_devid(display->drm_fd);
93 
94 		/* Check that the "scaling mode" property has been set. */
95 		if (!igt_output_has_prop(output, IGT_CONNECTOR_SCALING_MODE))
96 			continue;
97 
98 		cleanup_crtc(d);
99 		igt_output_set_pipe(output, pipe);
100 
101 		mode = igt_output_get_mode(output);
102 		native_mode = *mode;
103 
104 		/* allocate fb2 with image */
105 		igt_create_pattern_fb(d->drm_fd, mode->hdisplay / 2, mode->vdisplay / 2,
106 				      DRM_FORMAT_XRGB8888,
107 				      LOCAL_DRM_FORMAT_MOD_NONE, &d->fb2);
108 
109 		/* Set up display to enable panel fitting */
110 		mode->hdisplay = 640;
111 		mode->vdisplay = 480;
112 		d->plane1 = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY);
113 		prepare_crtc(d, output, pipe, d->plane1, mode, COMMIT_LEGACY);
114 
115 		/* disable panel fitting */
116 		prepare_crtc(d, output, pipe, d->plane1, &native_mode, COMMIT_LEGACY);
117 
118 		/* enable panel fitting */
119 		mode->hdisplay = 800;
120 		mode->vdisplay = 600;
121 		prepare_crtc(d, output, pipe, d->plane1, mode, COMMIT_LEGACY);
122 
123 		/* disable panel fitting */
124 		prepare_crtc(d, output, pipe, d->plane1, &native_mode, COMMIT_LEGACY);
125 
126 		/* Set up fb2->plane2 mapping. */
127 		d->plane2 = igt_output_get_plane_type(output, DRM_PLANE_TYPE_OVERLAY);
128 		igt_plane_set_fb(d->plane2, &d->fb2);
129 
130 		/* enable sprite plane */
131 		igt_fb_set_position(&d->fb2, d->plane2, 100, 100);
132 		igt_fb_set_size(&d->fb2, d->plane2, d->fb2.width-200, d->fb2.height-200);
133 		igt_plane_set_position(d->plane2, 100, 100);
134 		igt_plane_set_size(d->plane2, mode->hdisplay-200, mode->vdisplay-200);
135 		igt_display_commit2(display, COMMIT_UNIVERSAL);
136 
137 		/*
138 		 * most of gen7 and all of gen8 doesn't support scaling at all.
139 		 *
140 		 * gen9 pipe C has only 1 scaler shared with the crtc, which
141 		 * means pipe scaling can't work simultaneously with panel
142 		 * fitting.
143 		 *
144 		 * Since this is the legacy path, userspace has to know about
145 		 * the HW limitations, whereas atomic can ask.
146 		 */
147 		if (IS_GEN8(devid) || (IS_GEN7(devid) && !IS_IVYBRIDGE(devid)) ||
148 		    (IS_GEN9(devid) && pipe == PIPE_C))
149 			igt_plane_set_size(d->plane2, d->fb2.width-200, d->fb2.height-200);
150 
151 		/* enable panel fitting along with sprite scaling */
152 		mode->hdisplay = 1024;
153 		mode->vdisplay = 768;
154 		prepare_crtc(d, output, pipe, d->plane1, mode, COMMIT_LEGACY);
155 
156 		valid_tests++;
157 	}
158 	igt_require_f(valid_tests, "no valid crtc/connector combinations found\n");
159 }
160 
161 static void
test_panel_fitting_fastset(igt_display_t * display,const enum pipe pipe,igt_output_t * output)162 test_panel_fitting_fastset(igt_display_t *display, const enum pipe pipe, igt_output_t *output)
163 {
164 	igt_plane_t *primary, *sprite;
165 	drmModeModeInfo mode;
166 	struct igt_fb red, green, blue;
167 
168 	mode = *igt_output_get_mode(output);
169 
170 	igt_output_set_pipe(output, pipe);
171 
172 	primary = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY);
173 	sprite = igt_output_get_plane_type(output, DRM_PLANE_TYPE_OVERLAY);
174 
175 	igt_create_color_fb(display->drm_fd, mode.hdisplay, mode.vdisplay,
176 			    DRM_FORMAT_XRGB8888, LOCAL_DRM_FORMAT_MOD_NONE,
177 			    0.f, 0.f, 1.f, &blue);
178 
179 	igt_create_color_fb(display->drm_fd, 640, 480,
180 			    DRM_FORMAT_XRGB8888, LOCAL_DRM_FORMAT_MOD_NONE,
181 			    1.f, 0.f, 0.f, &red);
182 
183 	igt_create_color_fb(display->drm_fd, 800, 600,
184 			    DRM_FORMAT_XRGB8888, LOCAL_DRM_FORMAT_MOD_NONE,
185 			    0.f, 1.f, 0.f, &green);
186 
187 	igt_plane_set_fb(primary, &blue);
188 	igt_plane_set_fb(sprite, &red);
189 
190 	igt_display_commit2(display, COMMIT_ATOMIC);
191 
192 	mode.hdisplay = 640;
193 	mode.vdisplay = 480;
194 	igt_output_override_mode(output, &mode);
195 
196 	igt_plane_set_fb(sprite, NULL);
197 	igt_plane_set_fb(primary, &red);
198 
199 	/* Don't pass ALLOW_MODESET with overridden mode, force fastset. */
200 	igt_display_commit_atomic(display, 0, NULL);
201 
202 	/* Test with different scaled mode */
203 	mode.hdisplay = 800;
204 	mode.vdisplay = 600;
205 	igt_output_override_mode(output, &mode);
206 	igt_plane_set_fb(primary, &green);
207 	igt_display_commit_atomic(display, 0, NULL);
208 }
209 
test_atomic_fastset(data_t * data)210 static void test_atomic_fastset(data_t *data)
211 {
212 	igt_display_t *display = &data->display;
213 	igt_output_t *output;
214 	enum pipe pipe;
215 	int valid_tests = 0;
216 	struct stat sb;
217 
218 	/* Until this is force enabled, force modeset evasion. */
219 	if (stat("/sys/module/i915/parameters/fastboot", &sb) == 0)
220 		igt_set_module_param_int("fastboot", 1);
221 
222 	igt_require(display->is_atomic);
223 	igt_require(intel_gen(intel_get_drm_devid(display->drm_fd)) >= 5);
224 
225 	for_each_pipe_with_valid_output(display, pipe, output) {
226 		if (!igt_output_has_prop(output, IGT_CONNECTOR_SCALING_MODE))
227 			continue;
228 
229 		cleanup_crtc(data);
230 		test_panel_fitting_fastset(display, pipe, output);
231 		valid_tests++;
232 	}
233 	igt_require_f(valid_tests, "no valid crtc/connector combinations found\n");
234 }
235 
236 igt_main
237 {
238 	data_t data = {};
239 
240 	igt_fixture {
241 		igt_skip_on_simulation();
242 
243 		data.drm_fd = drm_open_driver(DRIVER_ANY);
244 		igt_display_require(&data.display, data.drm_fd);
245 		igt_display_require_output(&data.display);
246 	}
247 
248 	igt_subtest("legacy")
249 		test_panel_fitting(&data);
250 
251 	igt_subtest("atomic-fastset")
252 		test_atomic_fastset(&data);
253 
254 	igt_fixture
255 		igt_display_fini(&data.display);
256 }
257