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fb1d9738 JB |
1 | /************************************************************************** |
2 | * | |
3 | * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA | |
4 | * All Rights Reserved. | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a | |
7 | * copy of this software and associated documentation files (the | |
8 | * "Software"), to deal in the Software without restriction, including | |
9 | * without limitation the rights to use, copy, modify, merge, publish, | |
10 | * distribute, sub license, and/or sell copies of the Software, and to | |
11 | * permit persons to whom the Software is furnished to do so, subject to | |
12 | * the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice (including the | |
15 | * next paragraph) shall be included in all copies or substantial portions | |
16 | * of the Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL | |
21 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, | |
22 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR | |
23 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE | |
24 | * USE OR OTHER DEALINGS IN THE SOFTWARE. | |
25 | * | |
26 | **************************************************************************/ | |
27 | ||
28 | #include "vmwgfx_kms.h" | |
29 | ||
7a1c2f6c | 30 | |
fb1d9738 JB |
31 | #define vmw_crtc_to_ldu(x) \ |
32 | container_of(x, struct vmw_legacy_display_unit, base.crtc) | |
33 | #define vmw_encoder_to_ldu(x) \ | |
34 | container_of(x, struct vmw_legacy_display_unit, base.encoder) | |
35 | #define vmw_connector_to_ldu(x) \ | |
36 | container_of(x, struct vmw_legacy_display_unit, base.connector) | |
37 | ||
38 | struct vmw_legacy_display { | |
39 | struct list_head active; | |
40 | ||
41 | unsigned num_active; | |
d7e1958d | 42 | unsigned last_num_active; |
fb1d9738 JB |
43 | |
44 | struct vmw_framebuffer *fb; | |
45 | }; | |
46 | ||
47 | /** | |
48 | * Display unit using the legacy register interface. | |
49 | */ | |
50 | struct vmw_legacy_display_unit { | |
51 | struct vmw_display_unit base; | |
52 | ||
53 | struct list_head active; | |
fb1d9738 JB |
54 | }; |
55 | ||
56 | static void vmw_ldu_destroy(struct vmw_legacy_display_unit *ldu) | |
57 | { | |
58 | list_del_init(&ldu->active); | |
59 | vmw_display_unit_cleanup(&ldu->base); | |
60 | kfree(ldu); | |
61 | } | |
62 | ||
63 | ||
64 | /* | |
65 | * Legacy Display Unit CRTC functions | |
66 | */ | |
67 | ||
fb1d9738 JB |
68 | static void vmw_ldu_crtc_destroy(struct drm_crtc *crtc) |
69 | { | |
70 | vmw_ldu_destroy(vmw_crtc_to_ldu(crtc)); | |
71 | } | |
72 | ||
73 | static int vmw_ldu_commit_list(struct vmw_private *dev_priv) | |
74 | { | |
75 | struct vmw_legacy_display *lds = dev_priv->ldu_priv; | |
76 | struct vmw_legacy_display_unit *entry; | |
bfc2638d | 77 | struct vmw_display_unit *du = NULL; |
d7e1958d JB |
78 | struct drm_framebuffer *fb = NULL; |
79 | struct drm_crtc *crtc = NULL; | |
bfc2638d | 80 | int i = 0, ret; |
fb1d9738 | 81 | |
d7e1958d JB |
82 | /* If there is no display topology the host just assumes |
83 | * that the guest will set the same layout as the host. | |
84 | */ | |
85 | if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)) { | |
86 | int w = 0, h = 0; | |
87 | list_for_each_entry(entry, &lds->active, active) { | |
88 | crtc = &entry->base.crtc; | |
89 | w = max(w, crtc->x + crtc->mode.hdisplay); | |
90 | h = max(h, crtc->y + crtc->mode.vdisplay); | |
91 | i++; | |
92 | } | |
93 | ||
94 | if (crtc == NULL) | |
95 | return 0; | |
96 | fb = entry->base.crtc.fb; | |
97 | ||
01f2c773 | 98 | return vmw_kms_write_svga(dev_priv, w, h, fb->pitches[0], |
0bef23f9 | 99 | fb->bits_per_pixel, fb->depth); |
d7e1958d JB |
100 | } |
101 | ||
d7e1958d JB |
102 | if (!list_empty(&lds->active)) { |
103 | entry = list_entry(lds->active.next, typeof(*entry), active); | |
104 | fb = entry->base.crtc.fb; | |
105 | ||
01f2c773 | 106 | vmw_kms_write_svga(dev_priv, fb->width, fb->height, fb->pitches[0], |
d7e1958d JB |
107 | fb->bits_per_pixel, fb->depth); |
108 | } | |
109 | ||
259600d5 JB |
110 | /* Make sure we always show something. */ |
111 | vmw_write(dev_priv, SVGA_REG_NUM_GUEST_DISPLAYS, | |
112 | lds->num_active ? lds->num_active : 1); | |
113 | ||
fb1d9738 JB |
114 | i = 0; |
115 | list_for_each_entry(entry, &lds->active, active) { | |
116 | crtc = &entry->base.crtc; | |
117 | ||
118 | vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, i); | |
119 | vmw_write(dev_priv, SVGA_REG_DISPLAY_IS_PRIMARY, !i); | |
120 | vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_X, crtc->x); | |
121 | vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_Y, crtc->y); | |
122 | vmw_write(dev_priv, SVGA_REG_DISPLAY_WIDTH, crtc->mode.hdisplay); | |
123 | vmw_write(dev_priv, SVGA_REG_DISPLAY_HEIGHT, crtc->mode.vdisplay); | |
124 | vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID); | |
125 | ||
126 | i++; | |
127 | } | |
128 | ||
d7e1958d JB |
129 | BUG_ON(i != lds->num_active); |
130 | ||
131 | lds->last_num_active = lds->num_active; | |
132 | ||
bfc2638d JB |
133 | |
134 | /* Find the first du with a cursor. */ | |
135 | list_for_each_entry(entry, &lds->active, active) { | |
136 | du = &entry->base; | |
137 | ||
138 | if (!du->cursor_dmabuf) | |
139 | continue; | |
140 | ||
141 | ret = vmw_cursor_update_dmabuf(dev_priv, | |
142 | du->cursor_dmabuf, | |
143 | 64, 64, | |
144 | du->hotspot_x, | |
145 | du->hotspot_y); | |
146 | if (ret == 0) | |
147 | break; | |
148 | ||
149 | DRM_ERROR("Could not update cursor image\n"); | |
150 | } | |
151 | ||
fb1d9738 JB |
152 | return 0; |
153 | } | |
154 | ||
155 | static int vmw_ldu_del_active(struct vmw_private *vmw_priv, | |
156 | struct vmw_legacy_display_unit *ldu) | |
157 | { | |
158 | struct vmw_legacy_display *ld = vmw_priv->ldu_priv; | |
159 | if (list_empty(&ldu->active)) | |
160 | return 0; | |
161 | ||
6a591a96 | 162 | /* Must init otherwise list_empty(&ldu->active) will not work. */ |
fb1d9738 JB |
163 | list_del_init(&ldu->active); |
164 | if (--(ld->num_active) == 0) { | |
165 | BUG_ON(!ld->fb); | |
166 | if (ld->fb->unpin) | |
167 | ld->fb->unpin(ld->fb); | |
168 | ld->fb = NULL; | |
169 | } | |
170 | ||
171 | return 0; | |
172 | } | |
173 | ||
174 | static int vmw_ldu_add_active(struct vmw_private *vmw_priv, | |
175 | struct vmw_legacy_display_unit *ldu, | |
176 | struct vmw_framebuffer *vfb) | |
177 | { | |
178 | struct vmw_legacy_display *ld = vmw_priv->ldu_priv; | |
179 | struct vmw_legacy_display_unit *entry; | |
180 | struct list_head *at; | |
181 | ||
04e9e94d JB |
182 | BUG_ON(!ld->num_active && ld->fb); |
183 | if (vfb != ld->fb) { | |
184 | if (ld->fb && ld->fb->unpin) | |
185 | ld->fb->unpin(ld->fb); | |
186 | if (vfb->pin) | |
187 | vfb->pin(vfb); | |
188 | ld->fb = vfb; | |
189 | } | |
190 | ||
fb1d9738 JB |
191 | if (!list_empty(&ldu->active)) |
192 | return 0; | |
193 | ||
194 | at = &ld->active; | |
195 | list_for_each_entry(entry, &ld->active, active) { | |
bbfad336 | 196 | if (entry->base.unit > ldu->base.unit) |
fb1d9738 JB |
197 | break; |
198 | ||
199 | at = &entry->active; | |
200 | } | |
201 | ||
202 | list_add(&ldu->active, at); | |
04e9e94d JB |
203 | |
204 | ld->num_active++; | |
fb1d9738 JB |
205 | |
206 | return 0; | |
207 | } | |
208 | ||
209 | static int vmw_ldu_crtc_set_config(struct drm_mode_set *set) | |
210 | { | |
211 | struct vmw_private *dev_priv; | |
212 | struct vmw_legacy_display_unit *ldu; | |
213 | struct drm_connector *connector; | |
214 | struct drm_display_mode *mode; | |
215 | struct drm_encoder *encoder; | |
216 | struct vmw_framebuffer *vfb; | |
217 | struct drm_framebuffer *fb; | |
218 | struct drm_crtc *crtc; | |
219 | ||
220 | if (!set) | |
221 | return -EINVAL; | |
222 | ||
223 | if (!set->crtc) | |
224 | return -EINVAL; | |
225 | ||
226 | /* get the ldu */ | |
227 | crtc = set->crtc; | |
228 | ldu = vmw_crtc_to_ldu(crtc); | |
229 | vfb = set->fb ? vmw_framebuffer_to_vfb(set->fb) : NULL; | |
230 | dev_priv = vmw_priv(crtc->dev); | |
231 | ||
232 | if (set->num_connectors > 1) { | |
233 | DRM_ERROR("to many connectors\n"); | |
234 | return -EINVAL; | |
235 | } | |
236 | ||
237 | if (set->num_connectors == 1 && | |
238 | set->connectors[0] != &ldu->base.connector) { | |
239 | DRM_ERROR("connector doesn't match %p %p\n", | |
240 | set->connectors[0], &ldu->base.connector); | |
241 | return -EINVAL; | |
242 | } | |
243 | ||
244 | /* ldu only supports one fb active at the time */ | |
245 | if (dev_priv->ldu_priv->fb && vfb && | |
6a591a96 JB |
246 | !(dev_priv->ldu_priv->num_active == 1 && |
247 | !list_empty(&ldu->active)) && | |
fb1d9738 JB |
248 | dev_priv->ldu_priv->fb != vfb) { |
249 | DRM_ERROR("Multiple framebuffers not supported\n"); | |
250 | return -EINVAL; | |
251 | } | |
252 | ||
253 | /* since they always map one to one these are safe */ | |
254 | connector = &ldu->base.connector; | |
255 | encoder = &ldu->base.encoder; | |
256 | ||
257 | /* should we turn the crtc off? */ | |
258 | if (set->num_connectors == 0 || !set->mode || !set->fb) { | |
259 | ||
260 | connector->encoder = NULL; | |
261 | encoder->crtc = NULL; | |
262 | crtc->fb = NULL; | |
263 | ||
264 | vmw_ldu_del_active(dev_priv, ldu); | |
265 | ||
0bef23f9 | 266 | return vmw_ldu_commit_list(dev_priv); |
fb1d9738 JB |
267 | } |
268 | ||
269 | ||
270 | /* we now know we want to set a mode */ | |
271 | mode = set->mode; | |
272 | fb = set->fb; | |
273 | ||
274 | if (set->x + mode->hdisplay > fb->width || | |
275 | set->y + mode->vdisplay > fb->height) { | |
276 | DRM_ERROR("set outside of framebuffer\n"); | |
277 | return -EINVAL; | |
278 | } | |
279 | ||
280 | vmw_fb_off(dev_priv); | |
281 | ||
282 | crtc->fb = fb; | |
283 | encoder->crtc = crtc; | |
284 | connector->encoder = encoder; | |
285 | crtc->x = set->x; | |
286 | crtc->y = set->y; | |
287 | crtc->mode = *mode; | |
288 | ||
289 | vmw_ldu_add_active(dev_priv, ldu, vfb); | |
290 | ||
0bef23f9 | 291 | return vmw_ldu_commit_list(dev_priv); |
fb1d9738 JB |
292 | } |
293 | ||
294 | static struct drm_crtc_funcs vmw_legacy_crtc_funcs = { | |
626ab771 JB |
295 | .save = vmw_du_crtc_save, |
296 | .restore = vmw_du_crtc_restore, | |
fb1d9738 JB |
297 | .cursor_set = vmw_du_crtc_cursor_set, |
298 | .cursor_move = vmw_du_crtc_cursor_move, | |
626ab771 | 299 | .gamma_set = vmw_du_crtc_gamma_set, |
fb1d9738 JB |
300 | .destroy = vmw_ldu_crtc_destroy, |
301 | .set_config = vmw_ldu_crtc_set_config, | |
302 | }; | |
303 | ||
626ab771 | 304 | |
fb1d9738 JB |
305 | /* |
306 | * Legacy Display Unit encoder functions | |
307 | */ | |
308 | ||
309 | static void vmw_ldu_encoder_destroy(struct drm_encoder *encoder) | |
310 | { | |
311 | vmw_ldu_destroy(vmw_encoder_to_ldu(encoder)); | |
312 | } | |
313 | ||
314 | static struct drm_encoder_funcs vmw_legacy_encoder_funcs = { | |
315 | .destroy = vmw_ldu_encoder_destroy, | |
316 | }; | |
317 | ||
318 | /* | |
319 | * Legacy Display Unit connector functions | |
320 | */ | |
321 | ||
fb1d9738 JB |
322 | static void vmw_ldu_connector_destroy(struct drm_connector *connector) |
323 | { | |
324 | vmw_ldu_destroy(vmw_connector_to_ldu(connector)); | |
325 | } | |
326 | ||
327 | static struct drm_connector_funcs vmw_legacy_connector_funcs = { | |
626ab771 JB |
328 | .dpms = vmw_du_connector_dpms, |
329 | .save = vmw_du_connector_save, | |
330 | .restore = vmw_du_connector_restore, | |
331 | .detect = vmw_du_connector_detect, | |
332 | .fill_modes = vmw_du_connector_fill_modes, | |
333 | .set_property = vmw_du_connector_set_property, | |
fb1d9738 JB |
334 | .destroy = vmw_ldu_connector_destroy, |
335 | }; | |
336 | ||
337 | static int vmw_ldu_init(struct vmw_private *dev_priv, unsigned unit) | |
338 | { | |
339 | struct vmw_legacy_display_unit *ldu; | |
340 | struct drm_device *dev = dev_priv->dev; | |
341 | struct drm_connector *connector; | |
342 | struct drm_encoder *encoder; | |
343 | struct drm_crtc *crtc; | |
344 | ||
345 | ldu = kzalloc(sizeof(*ldu), GFP_KERNEL); | |
346 | if (!ldu) | |
347 | return -ENOMEM; | |
348 | ||
bbfad336 | 349 | ldu->base.unit = unit; |
fb1d9738 JB |
350 | crtc = &ldu->base.crtc; |
351 | encoder = &ldu->base.encoder; | |
352 | connector = &ldu->base.connector; | |
353 | ||
1ae1ddd5 JB |
354 | INIT_LIST_HEAD(&ldu->active); |
355 | ||
626ab771 | 356 | ldu->base.pref_active = (unit == 0); |
eb4f923b JB |
357 | ldu->base.pref_width = dev_priv->initial_width; |
358 | ldu->base.pref_height = dev_priv->initial_height; | |
626ab771 | 359 | ldu->base.pref_mode = NULL; |
6987427a | 360 | ldu->base.is_implicit = true; |
d8bd19d2 | 361 | |
fb1d9738 | 362 | drm_connector_init(dev, connector, &vmw_legacy_connector_funcs, |
305151e3 | 363 | DRM_MODE_CONNECTOR_VIRTUAL); |
626ab771 | 364 | connector->status = vmw_du_connector_detect(connector, true); |
fb1d9738 JB |
365 | |
366 | drm_encoder_init(dev, encoder, &vmw_legacy_encoder_funcs, | |
305151e3 | 367 | DRM_MODE_ENCODER_VIRTUAL); |
fb1d9738 JB |
368 | drm_mode_connector_attach_encoder(connector, encoder); |
369 | encoder->possible_crtcs = (1 << unit); | |
370 | encoder->possible_clones = 0; | |
371 | ||
fb1d9738 JB |
372 | drm_crtc_init(dev, crtc, &vmw_legacy_crtc_funcs); |
373 | ||
f01b7ba0 MD |
374 | drm_mode_crtc_set_gamma_size(crtc, 256); |
375 | ||
fb1d9738 JB |
376 | drm_connector_attach_property(connector, |
377 | dev->mode_config.dirty_info_property, | |
378 | 1); | |
379 | ||
380 | return 0; | |
381 | } | |
382 | ||
383 | int vmw_kms_init_legacy_display_system(struct vmw_private *dev_priv) | |
384 | { | |
7a1c2f6c | 385 | struct drm_device *dev = dev_priv->dev; |
74b5ea30 | 386 | int i, ret; |
7a1c2f6c | 387 | |
fb1d9738 JB |
388 | if (dev_priv->ldu_priv) { |
389 | DRM_INFO("ldu system already on\n"); | |
390 | return -EINVAL; | |
391 | } | |
392 | ||
85b54e0c | 393 | dev_priv->ldu_priv = kmalloc(sizeof(*dev_priv->ldu_priv), GFP_KERNEL); |
fb1d9738 JB |
394 | if (!dev_priv->ldu_priv) |
395 | return -ENOMEM; | |
396 | ||
397 | INIT_LIST_HEAD(&dev_priv->ldu_priv->active); | |
398 | dev_priv->ldu_priv->num_active = 0; | |
d7e1958d | 399 | dev_priv->ldu_priv->last_num_active = 0; |
fb1d9738 JB |
400 | dev_priv->ldu_priv->fb = NULL; |
401 | ||
60a16a30 JB |
402 | /* for old hardware without multimon only enable one display */ |
403 | if (dev_priv->capabilities & SVGA_CAP_MULTIMON) | |
404 | ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS); | |
405 | else | |
406 | ret = drm_vblank_init(dev, 1); | |
407 | if (ret != 0) | |
408 | goto err_free; | |
fb1d9738 | 409 | |
60a16a30 JB |
410 | ret = drm_mode_create_dirty_info_property(dev); |
411 | if (ret != 0) | |
412 | goto err_vblank_cleanup; | |
413 | ||
414 | if (dev_priv->capabilities & SVGA_CAP_MULTIMON) | |
56d1c78d | 415 | for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) |
7a1c2f6c | 416 | vmw_ldu_init(dev_priv, i); |
60a16a30 | 417 | else |
7a1c2f6c | 418 | vmw_ldu_init(dev_priv, 0); |
fb1d9738 | 419 | |
60a16a30 JB |
420 | return 0; |
421 | ||
422 | err_vblank_cleanup: | |
423 | drm_vblank_cleanup(dev); | |
424 | err_free: | |
425 | kfree(dev_priv->ldu_priv); | |
426 | dev_priv->ldu_priv = NULL; | |
7a1c2f6c | 427 | return ret; |
fb1d9738 JB |
428 | } |
429 | ||
430 | int vmw_kms_close_legacy_display_system(struct vmw_private *dev_priv) | |
431 | { | |
7a1c2f6c TH |
432 | struct drm_device *dev = dev_priv->dev; |
433 | ||
fb1d9738 JB |
434 | if (!dev_priv->ldu_priv) |
435 | return -ENOSYS; | |
436 | ||
60a16a30 JB |
437 | drm_vblank_cleanup(dev); |
438 | ||
fb1d9738 JB |
439 | BUG_ON(!list_empty(&dev_priv->ldu_priv->active)); |
440 | ||
441 | kfree(dev_priv->ldu_priv); | |
442 | ||
443 | return 0; | |
444 | } |