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35c05125 SY |
1 | /****************************************************************************** |
2 | * | |
54fbde8a | 3 | * COPYRIGHT © 2014-2015 VMware, Inc., Palo Alto, CA., USA |
35c05125 SY |
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" | |
8ce75f8a | 29 | #include "device_include/svga3d_surfacedefs.h" |
35c05125 SY |
30 | #include <drm/drm_plane_helper.h> |
31 | ||
32 | #define vmw_crtc_to_stdu(x) \ | |
33 | container_of(x, struct vmw_screen_target_display_unit, base.crtc) | |
34 | #define vmw_encoder_to_stdu(x) \ | |
35 | container_of(x, struct vmw_screen_target_display_unit, base.encoder) | |
36 | #define vmw_connector_to_stdu(x) \ | |
37 | container_of(x, struct vmw_screen_target_display_unit, base.connector) | |
38 | ||
39 | ||
40 | ||
41 | enum stdu_content_type { | |
42 | SAME_AS_DISPLAY = 0, | |
43 | SEPARATE_SURFACE, | |
44 | SEPARATE_DMA | |
45 | }; | |
46 | ||
6bf6bf03 TH |
47 | /** |
48 | * struct vmw_stdu_dirty - closure structure for the update functions | |
49 | * | |
50 | * @base: The base type we derive from. Used by vmw_kms_helper_dirty(). | |
51 | * @transfer: Transfer direction for DMA command. | |
52 | * @left: Left side of bounding box. | |
53 | * @right: Right side of bounding box. | |
54 | * @top: Top side of bounding box. | |
55 | * @bottom: Bottom side of bounding box. | |
56 | * @buf: DMA buffer when DMA-ing between buffer and screen targets. | |
57 | * @sid: Surface ID when copying between surface and screen targets. | |
58 | */ | |
59 | struct vmw_stdu_dirty { | |
60 | struct vmw_kms_dirty base; | |
61 | SVGA3dTransferType transfer; | |
62 | s32 left, right, top, bottom; | |
63 | u32 pitch; | |
64 | union { | |
65 | struct vmw_dma_buffer *buf; | |
66 | u32 sid; | |
67 | }; | |
68 | }; | |
69 | ||
70 | /* | |
71 | * SVGA commands that are used by this code. Please see the device headers | |
72 | * for explanation. | |
73 | */ | |
74 | struct vmw_stdu_update { | |
75 | SVGA3dCmdHeader header; | |
76 | SVGA3dCmdUpdateGBScreenTarget body; | |
77 | }; | |
78 | ||
79 | struct vmw_stdu_dma { | |
80 | SVGA3dCmdHeader header; | |
81 | SVGA3dCmdSurfaceDMA body; | |
82 | }; | |
83 | ||
84 | struct vmw_stdu_surface_copy { | |
85 | SVGA3dCmdHeader header; | |
86 | SVGA3dCmdSurfaceCopy body; | |
87 | }; | |
35c05125 SY |
88 | |
89 | ||
90 | /** | |
91 | * struct vmw_screen_target_display_unit | |
92 | * | |
93 | * @base: VMW specific DU structure | |
94 | * @display_srf: surface to be displayed. The dimension of this will always | |
95 | * match the display mode. If the display mode matches | |
96 | * content_vfbs dimensions, then this is a pointer into the | |
97 | * corresponding field in content_vfbs. If not, then this | |
98 | * is a separate buffer to which content_vfbs will blit to. | |
99 | * @content_fb: holds the rendered content, can be a surface or DMA buffer | |
100 | * @content_type: content_fb type | |
101 | * @defined: true if the current display unit has been initialized | |
102 | */ | |
103 | struct vmw_screen_target_display_unit { | |
104 | struct vmw_display_unit base; | |
105 | ||
106 | struct vmw_surface *display_srf; | |
107 | struct drm_framebuffer *content_fb; | |
108 | ||
109 | enum stdu_content_type content_fb_type; | |
110 | ||
111 | bool defined; | |
112 | }; | |
113 | ||
114 | ||
115 | ||
116 | static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu); | |
117 | ||
118 | ||
119 | ||
120 | /****************************************************************************** | |
121 | * Screen Target Display Unit helper Functions | |
122 | *****************************************************************************/ | |
123 | ||
124 | /** | |
125 | * vmw_stdu_pin_display - pins the resource associated with the display surface | |
126 | * | |
127 | * @stdu: contains the display surface | |
128 | * | |
129 | * Since the display surface can either be a private surface allocated by us, | |
130 | * or it can point to the content surface, we use this function to not pin the | |
131 | * same resource twice. | |
132 | */ | |
133 | static int vmw_stdu_pin_display(struct vmw_screen_target_display_unit *stdu) | |
134 | { | |
1a4b172a | 135 | return vmw_resource_pin(&stdu->display_srf->res, false); |
35c05125 SY |
136 | } |
137 | ||
138 | ||
139 | ||
140 | /** | |
141 | * vmw_stdu_unpin_display - unpins the resource associated with display surface | |
142 | * | |
143 | * @stdu: contains the display surface | |
144 | * | |
145 | * If the display surface was privatedly allocated by | |
146 | * vmw_surface_gb_priv_define() and not registered as a framebuffer, then it | |
147 | * won't be automatically cleaned up when all the framebuffers are freed. As | |
148 | * such, we have to explicitly call vmw_resource_unreference() to get it freed. | |
149 | */ | |
150 | static void vmw_stdu_unpin_display(struct vmw_screen_target_display_unit *stdu) | |
151 | { | |
152 | if (stdu->display_srf) { | |
153 | struct vmw_resource *res = &stdu->display_srf->res; | |
154 | ||
155 | vmw_resource_unpin(res); | |
156 | ||
157 | if (stdu->content_fb_type != SAME_AS_DISPLAY) { | |
158 | vmw_resource_unreference(&res); | |
159 | stdu->content_fb_type = SAME_AS_DISPLAY; | |
160 | } | |
161 | ||
162 | stdu->display_srf = NULL; | |
163 | } | |
164 | } | |
165 | ||
166 | ||
167 | ||
168 | /****************************************************************************** | |
169 | * Screen Target Display Unit CRTC Functions | |
170 | *****************************************************************************/ | |
171 | ||
172 | ||
173 | /** | |
174 | * vmw_stdu_crtc_destroy - cleans up the STDU | |
175 | * | |
176 | * @crtc: used to get a reference to the containing STDU | |
177 | */ | |
178 | static void vmw_stdu_crtc_destroy(struct drm_crtc *crtc) | |
179 | { | |
180 | vmw_stdu_destroy(vmw_crtc_to_stdu(crtc)); | |
181 | } | |
182 | ||
35c05125 SY |
183 | /** |
184 | * vmw_stdu_define_st - Defines a Screen Target | |
185 | * | |
186 | * @dev_priv: VMW DRM device | |
187 | * @stdu: display unit to create a Screen Target for | |
188 | * | |
189 | * Creates a STDU that we can used later. This function is called whenever the | |
190 | * framebuffer size changes. | |
191 | * | |
192 | * RETURNs: | |
193 | * 0 on success, error code on failure | |
194 | */ | |
195 | static int vmw_stdu_define_st(struct vmw_private *dev_priv, | |
196 | struct vmw_screen_target_display_unit *stdu) | |
197 | { | |
198 | struct { | |
199 | SVGA3dCmdHeader header; | |
200 | SVGA3dCmdDefineGBScreenTarget body; | |
201 | } *cmd; | |
202 | ||
203 | cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); | |
204 | ||
205 | if (unlikely(cmd == NULL)) { | |
206 | DRM_ERROR("Out of FIFO space defining Screen Target\n"); | |
207 | return -ENOMEM; | |
208 | } | |
209 | ||
210 | cmd->header.id = SVGA_3D_CMD_DEFINE_GB_SCREENTARGET; | |
211 | cmd->header.size = sizeof(cmd->body); | |
212 | ||
213 | cmd->body.stid = stdu->base.unit; | |
214 | cmd->body.width = stdu->display_srf->base_size.width; | |
215 | cmd->body.height = stdu->display_srf->base_size.height; | |
216 | cmd->body.flags = (0 == cmd->body.stid) ? SVGA_STFLAG_PRIMARY : 0; | |
217 | cmd->body.dpi = 0; | |
218 | cmd->body.xRoot = stdu->base.crtc.x; | |
219 | cmd->body.yRoot = stdu->base.crtc.y; | |
220 | ||
221 | if (!stdu->base.is_implicit) { | |
222 | cmd->body.xRoot = stdu->base.gui_x; | |
223 | cmd->body.yRoot = stdu->base.gui_y; | |
224 | } | |
225 | ||
226 | vmw_fifo_commit(dev_priv, sizeof(*cmd)); | |
227 | ||
228 | stdu->defined = true; | |
229 | ||
230 | return 0; | |
231 | } | |
232 | ||
233 | ||
234 | ||
235 | /** | |
236 | * vmw_stdu_bind_st - Binds a surface to a Screen Target | |
237 | * | |
238 | * @dev_priv: VMW DRM device | |
239 | * @stdu: display unit affected | |
240 | * @res: Buffer to bind to the screen target. Set to NULL to blank screen. | |
241 | * | |
242 | * Binding a surface to a Screen Target the same as flipping | |
243 | */ | |
244 | static int vmw_stdu_bind_st(struct vmw_private *dev_priv, | |
245 | struct vmw_screen_target_display_unit *stdu, | |
246 | struct vmw_resource *res) | |
247 | { | |
248 | SVGA3dSurfaceImageId image; | |
249 | ||
250 | struct { | |
251 | SVGA3dCmdHeader header; | |
252 | SVGA3dCmdBindGBScreenTarget body; | |
253 | } *cmd; | |
254 | ||
255 | ||
256 | if (!stdu->defined) { | |
257 | DRM_ERROR("No screen target defined\n"); | |
258 | return -EINVAL; | |
259 | } | |
260 | ||
261 | /* Set up image using information in vfb */ | |
262 | memset(&image, 0, sizeof(image)); | |
263 | image.sid = res ? res->id : SVGA3D_INVALID_ID; | |
264 | ||
265 | cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); | |
266 | ||
267 | if (unlikely(cmd == NULL)) { | |
268 | DRM_ERROR("Out of FIFO space binding a screen target\n"); | |
269 | return -ENOMEM; | |
270 | } | |
271 | ||
272 | cmd->header.id = SVGA_3D_CMD_BIND_GB_SCREENTARGET; | |
273 | cmd->header.size = sizeof(cmd->body); | |
274 | ||
275 | cmd->body.stid = stdu->base.unit; | |
276 | cmd->body.image = image; | |
277 | ||
278 | vmw_fifo_commit(dev_priv, sizeof(*cmd)); | |
279 | ||
280 | return 0; | |
281 | } | |
282 | ||
6bf6bf03 TH |
283 | /** |
284 | * vmw_stdu_populate_update - populate an UPDATE_GB_SCREENTARGET command with a | |
285 | * bounding box. | |
286 | * | |
287 | * @cmd: Pointer to command stream. | |
288 | * @unit: Screen target unit. | |
289 | * @left: Left side of bounding box. | |
290 | * @right: Right side of bounding box. | |
291 | * @top: Top side of bounding box. | |
292 | * @bottom: Bottom side of bounding box. | |
293 | */ | |
294 | static void vmw_stdu_populate_update(void *cmd, int unit, | |
295 | s32 left, s32 right, s32 top, s32 bottom) | |
296 | { | |
297 | struct vmw_stdu_update *update = cmd; | |
298 | ||
299 | update->header.id = SVGA_3D_CMD_UPDATE_GB_SCREENTARGET; | |
300 | update->header.size = sizeof(update->body); | |
35c05125 | 301 | |
6bf6bf03 TH |
302 | update->body.stid = unit; |
303 | update->body.rect.x = left; | |
304 | update->body.rect.y = top; | |
305 | update->body.rect.w = right - left; | |
306 | update->body.rect.h = bottom - top; | |
307 | } | |
35c05125 SY |
308 | |
309 | /** | |
6bf6bf03 | 310 | * vmw_stdu_update_st - Full update of a Screen Target |
35c05125 SY |
311 | * |
312 | * @dev_priv: VMW DRM device | |
35c05125 | 313 | * @stdu: display unit affected |
35c05125 SY |
314 | * |
315 | * This function needs to be called whenever the content of a screen | |
6bf6bf03 TH |
316 | * target has changed completely. Typically as a result of a backing |
317 | * surface change. | |
35c05125 SY |
318 | * |
319 | * RETURNS: | |
320 | * 0 on success, error code on failure | |
321 | */ | |
322 | static int vmw_stdu_update_st(struct vmw_private *dev_priv, | |
6bf6bf03 | 323 | struct vmw_screen_target_display_unit *stdu) |
35c05125 | 324 | { |
6bf6bf03 TH |
325 | struct vmw_stdu_update *cmd; |
326 | struct drm_crtc *crtc = &stdu->base.crtc; | |
35c05125 SY |
327 | |
328 | if (!stdu->defined) { | |
329 | DRM_ERROR("No screen target defined"); | |
330 | return -EINVAL; | |
331 | } | |
332 | ||
35c05125 SY |
333 | cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); |
334 | ||
335 | if (unlikely(cmd == NULL)) { | |
336 | DRM_ERROR("Out of FIFO space updating a Screen Target\n"); | |
337 | return -ENOMEM; | |
338 | } | |
339 | ||
6bf6bf03 TH |
340 | vmw_stdu_populate_update(cmd, stdu->base.unit, 0, crtc->mode.hdisplay, |
341 | 0, crtc->mode.vdisplay); | |
35c05125 SY |
342 | |
343 | vmw_fifo_commit(dev_priv, sizeof(*cmd)); | |
344 | ||
345 | return 0; | |
346 | } | |
347 | ||
348 | ||
349 | ||
350 | /** | |
351 | * vmw_stdu_destroy_st - Destroy a Screen Target | |
352 | * | |
353 | * @dev_priv: VMW DRM device | |
354 | * @stdu: display unit to destroy | |
355 | */ | |
356 | static int vmw_stdu_destroy_st(struct vmw_private *dev_priv, | |
357 | struct vmw_screen_target_display_unit *stdu) | |
358 | { | |
359 | int ret; | |
360 | ||
361 | struct { | |
362 | SVGA3dCmdHeader header; | |
363 | SVGA3dCmdDestroyGBScreenTarget body; | |
364 | } *cmd; | |
365 | ||
366 | ||
367 | /* Nothing to do if not successfully defined */ | |
368 | if (unlikely(!stdu->defined)) | |
369 | return 0; | |
370 | ||
371 | cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); | |
372 | ||
373 | if (unlikely(cmd == NULL)) { | |
374 | DRM_ERROR("Out of FIFO space, screen target not destroyed\n"); | |
375 | return -ENOMEM; | |
376 | } | |
377 | ||
378 | cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SCREENTARGET; | |
379 | cmd->header.size = sizeof(cmd->body); | |
380 | ||
381 | cmd->body.stid = stdu->base.unit; | |
382 | ||
383 | vmw_fifo_commit(dev_priv, sizeof(*cmd)); | |
384 | ||
385 | /* Force sync */ | |
386 | ret = vmw_fallback_wait(dev_priv, false, true, 0, false, 3*HZ); | |
387 | if (unlikely(ret != 0)) | |
388 | DRM_ERROR("Failed to sync with HW"); | |
389 | ||
390 | stdu->defined = false; | |
391 | ||
392 | return ret; | |
393 | } | |
394 | ||
395 | ||
396 | ||
397 | /** | |
398 | * vmw_stdu_crtc_set_config - Sets a mode | |
399 | * | |
400 | * @set: mode parameters | |
401 | * | |
402 | * This function is the device-specific portion of the DRM CRTC mode set. | |
403 | * For the SVGA device, we do this by defining a Screen Target, binding a | |
404 | * GB Surface to that target, and finally update the screen target. | |
405 | * | |
406 | * RETURNS: | |
407 | * 0 on success, error code otherwise | |
408 | */ | |
409 | static int vmw_stdu_crtc_set_config(struct drm_mode_set *set) | |
410 | { | |
411 | struct vmw_private *dev_priv; | |
412 | struct vmw_screen_target_display_unit *stdu; | |
413 | struct vmw_framebuffer *vfb; | |
414 | struct vmw_framebuffer_surface *new_vfbs; | |
415 | struct drm_display_mode *mode; | |
416 | struct drm_framebuffer *new_fb; | |
417 | struct drm_crtc *crtc; | |
418 | struct drm_encoder *encoder; | |
419 | struct drm_connector *connector; | |
35c05125 SY |
420 | int ret; |
421 | ||
422 | ||
423 | if (!set || !set->crtc) | |
424 | return -EINVAL; | |
425 | ||
426 | crtc = set->crtc; | |
427 | crtc->x = set->x; | |
428 | crtc->y = set->y; | |
429 | stdu = vmw_crtc_to_stdu(crtc); | |
430 | mode = set->mode; | |
431 | new_fb = set->fb; | |
432 | dev_priv = vmw_priv(crtc->dev); | |
433 | ||
434 | ||
435 | if (set->num_connectors > 1) { | |
436 | DRM_ERROR("Too many connectors\n"); | |
437 | return -EINVAL; | |
438 | } | |
439 | ||
440 | if (set->num_connectors == 1 && | |
441 | set->connectors[0] != &stdu->base.connector) { | |
442 | DRM_ERROR("Connectors don't match %p %p\n", | |
443 | set->connectors[0], &stdu->base.connector); | |
444 | return -EINVAL; | |
445 | } | |
446 | ||
447 | ||
448 | /* Since they always map one to one these are safe */ | |
449 | connector = &stdu->base.connector; | |
450 | encoder = &stdu->base.encoder; | |
451 | ||
452 | ||
453 | /* | |
454 | * After this point the CRTC will be considered off unless a new fb | |
455 | * is bound | |
456 | */ | |
457 | if (stdu->defined) { | |
458 | /* Unbind current surface by binding an invalid one */ | |
459 | ret = vmw_stdu_bind_st(dev_priv, stdu, NULL); | |
460 | if (unlikely(ret != 0)) | |
461 | return ret; | |
462 | ||
463 | /* Update Screen Target, display will now be blank */ | |
464 | if (crtc->primary->fb) { | |
6bf6bf03 | 465 | vmw_stdu_update_st(dev_priv, stdu); |
35c05125 SY |
466 | if (unlikely(ret != 0)) |
467 | return ret; | |
468 | } | |
469 | ||
470 | crtc->primary->fb = NULL; | |
471 | crtc->enabled = false; | |
472 | encoder->crtc = NULL; | |
473 | connector->encoder = NULL; | |
474 | ||
475 | vmw_stdu_unpin_display(stdu); | |
476 | stdu->content_fb = NULL; | |
477 | stdu->content_fb_type = SAME_AS_DISPLAY; | |
478 | ||
479 | ret = vmw_stdu_destroy_st(dev_priv, stdu); | |
480 | /* The hardware is hung, give up */ | |
481 | if (unlikely(ret != 0)) | |
482 | return ret; | |
483 | } | |
484 | ||
485 | ||
486 | /* Any of these conditions means the caller wants CRTC off */ | |
487 | if (set->num_connectors == 0 || !mode || !new_fb) | |
488 | return 0; | |
489 | ||
490 | ||
491 | if (set->x + mode->hdisplay > new_fb->width || | |
492 | set->y + mode->vdisplay > new_fb->height) { | |
493 | DRM_ERROR("Set outside of framebuffer\n"); | |
494 | return -EINVAL; | |
495 | } | |
496 | ||
497 | stdu->content_fb = new_fb; | |
498 | vfb = vmw_framebuffer_to_vfb(stdu->content_fb); | |
499 | ||
500 | if (vfb->dmabuf) | |
501 | stdu->content_fb_type = SEPARATE_DMA; | |
502 | ||
503 | /* | |
504 | * If the requested mode is different than the width and height | |
505 | * of the FB or if the content buffer is a DMA buf, then allocate | |
506 | * a display FB that matches the dimension of the mode | |
507 | */ | |
508 | if (mode->hdisplay != new_fb->width || | |
509 | mode->vdisplay != new_fb->height || | |
510 | stdu->content_fb_type != SAME_AS_DISPLAY) { | |
511 | struct vmw_surface content_srf; | |
512 | struct drm_vmw_size display_base_size = {0}; | |
513 | struct vmw_surface *display_srf; | |
514 | ||
515 | ||
516 | display_base_size.width = mode->hdisplay; | |
517 | display_base_size.height = mode->vdisplay; | |
518 | display_base_size.depth = 1; | |
519 | ||
520 | /* | |
521 | * If content buffer is a DMA buf, then we have to construct | |
522 | * surface info | |
523 | */ | |
524 | if (stdu->content_fb_type == SEPARATE_DMA) { | |
525 | ||
526 | switch (new_fb->bits_per_pixel) { | |
527 | case 32: | |
528 | content_srf.format = SVGA3D_X8R8G8B8; | |
529 | break; | |
530 | ||
531 | case 16: | |
532 | content_srf.format = SVGA3D_R5G6B5; | |
533 | break; | |
534 | ||
535 | case 8: | |
536 | content_srf.format = SVGA3D_P8; | |
537 | break; | |
538 | ||
539 | default: | |
540 | DRM_ERROR("Invalid format\n"); | |
541 | ret = -EINVAL; | |
542 | goto err_unref_content; | |
543 | } | |
544 | ||
545 | content_srf.flags = 0; | |
546 | content_srf.mip_levels[0] = 1; | |
547 | content_srf.multisample_count = 0; | |
548 | } else { | |
549 | ||
550 | stdu->content_fb_type = SEPARATE_SURFACE; | |
551 | ||
552 | new_vfbs = vmw_framebuffer_to_vfbs(new_fb); | |
553 | content_srf = *new_vfbs->surface; | |
554 | } | |
555 | ||
556 | ||
557 | ret = vmw_surface_gb_priv_define(crtc->dev, | |
558 | 0, /* because kernel visible only */ | |
559 | content_srf.flags, | |
560 | content_srf.format, | |
561 | true, /* a scanout buffer */ | |
562 | content_srf.mip_levels[0], | |
563 | content_srf.multisample_count, | |
d80efd5c | 564 | 0, |
35c05125 SY |
565 | display_base_size, |
566 | &display_srf); | |
567 | if (unlikely(ret != 0)) { | |
568 | DRM_ERROR("Cannot allocate a display FB.\n"); | |
569 | goto err_unref_content; | |
570 | } | |
571 | ||
572 | stdu->display_srf = display_srf; | |
573 | } else { | |
574 | new_vfbs = vmw_framebuffer_to_vfbs(new_fb); | |
575 | stdu->display_srf = new_vfbs->surface; | |
576 | } | |
577 | ||
578 | ||
579 | ret = vmw_stdu_pin_display(stdu); | |
580 | if (unlikely(ret != 0)) { | |
581 | stdu->display_srf = NULL; | |
582 | goto err_unref_content; | |
583 | } | |
584 | ||
35c05125 SY |
585 | vmw_svga_enable(dev_priv); |
586 | ||
587 | /* | |
588 | * Steps to displaying a surface, assume surface is already | |
589 | * bound: | |
590 | * 1. define a screen target | |
591 | * 2. bind a fb to the screen target | |
592 | * 3. update that screen target (this is done later by | |
593 | * vmw_kms_stdu_do_surface_dirty_or_present) | |
594 | */ | |
595 | ret = vmw_stdu_define_st(dev_priv, stdu); | |
596 | if (unlikely(ret != 0)) | |
597 | goto err_unpin_display_and_content; | |
598 | ||
599 | ret = vmw_stdu_bind_st(dev_priv, stdu, &stdu->display_srf->res); | |
600 | if (unlikely(ret != 0)) | |
601 | goto err_unpin_destroy_st; | |
602 | ||
603 | ||
604 | connector->encoder = encoder; | |
605 | encoder->crtc = crtc; | |
606 | ||
607 | crtc->mode = *mode; | |
608 | crtc->primary->fb = new_fb; | |
609 | crtc->enabled = true; | |
610 | ||
611 | return ret; | |
612 | ||
613 | err_unpin_destroy_st: | |
614 | vmw_stdu_destroy_st(dev_priv, stdu); | |
615 | err_unpin_display_and_content: | |
616 | vmw_stdu_unpin_display(stdu); | |
617 | err_unref_content: | |
618 | stdu->content_fb = NULL; | |
619 | return ret; | |
620 | } | |
621 | ||
622 | ||
623 | ||
624 | /** | |
625 | * vmw_stdu_crtc_page_flip - Binds a buffer to a screen target | |
626 | * | |
627 | * @crtc: CRTC to attach FB to | |
628 | * @fb: FB to attach | |
629 | * @event: Event to be posted. This event should've been alloced | |
630 | * using k[mz]alloc, and should've been completely initialized. | |
631 | * @page_flip_flags: Input flags. | |
632 | * | |
633 | * If the STDU uses the same display and content buffers, i.e. a true flip, | |
634 | * this function will replace the existing display buffer with the new content | |
635 | * buffer. | |
636 | * | |
637 | * If the STDU uses different display and content buffers, i.e. a blit, then | |
638 | * only the content buffer will be updated. | |
639 | * | |
640 | * RETURNS: | |
641 | * 0 on success, error code on failure | |
642 | */ | |
643 | static int vmw_stdu_crtc_page_flip(struct drm_crtc *crtc, | |
644 | struct drm_framebuffer *new_fb, | |
645 | struct drm_pending_vblank_event *event, | |
646 | uint32_t flags) | |
647 | ||
648 | { | |
649 | struct vmw_private *dev_priv = vmw_priv(crtc->dev); | |
650 | struct vmw_screen_target_display_unit *stdu; | |
35c05125 SY |
651 | int ret; |
652 | ||
35c05125 SY |
653 | if (crtc == NULL) |
654 | return -EINVAL; | |
655 | ||
656 | dev_priv = vmw_priv(crtc->dev); | |
657 | stdu = vmw_crtc_to_stdu(crtc); | |
658 | crtc->primary->fb = new_fb; | |
659 | stdu->content_fb = new_fb; | |
660 | ||
661 | if (stdu->display_srf) { | |
35c05125 SY |
662 | /* |
663 | * If the display surface is the same as the content surface | |
664 | * then remove the reference | |
665 | */ | |
666 | if (stdu->content_fb_type == SAME_AS_DISPLAY) { | |
667 | if (stdu->defined) { | |
668 | /* Unbind the current surface */ | |
669 | ret = vmw_stdu_bind_st(dev_priv, stdu, NULL); | |
670 | if (unlikely(ret != 0)) | |
671 | goto err_out; | |
672 | } | |
673 | vmw_stdu_unpin_display(stdu); | |
674 | stdu->display_srf = NULL; | |
675 | } | |
676 | } | |
677 | ||
678 | ||
679 | if (!new_fb) { | |
680 | /* Blanks the display */ | |
6bf6bf03 | 681 | (void) vmw_stdu_update_st(dev_priv, stdu); |
35c05125 SY |
682 | |
683 | return 0; | |
684 | } | |
685 | ||
686 | ||
687 | if (stdu->content_fb_type == SAME_AS_DISPLAY) { | |
688 | stdu->display_srf = vmw_framebuffer_to_vfbs(new_fb)->surface; | |
689 | ret = vmw_stdu_pin_display(stdu); | |
690 | if (ret) { | |
691 | stdu->display_srf = NULL; | |
692 | goto err_out; | |
693 | } | |
694 | ||
695 | /* Bind display surface */ | |
696 | ret = vmw_stdu_bind_st(dev_priv, stdu, &stdu->display_srf->res); | |
697 | if (unlikely(ret != 0)) | |
698 | goto err_unpin_display_and_content; | |
699 | } | |
700 | ||
701 | /* Update display surface: after this point everything is bound */ | |
6bf6bf03 | 702 | ret = vmw_stdu_update_st(dev_priv, stdu); |
35c05125 SY |
703 | if (unlikely(ret != 0)) |
704 | return ret; | |
705 | ||
706 | if (event) { | |
707 | struct vmw_fence_obj *fence = NULL; | |
6bf6bf03 | 708 | struct drm_file *file_priv = event->base.file_priv; |
35c05125 SY |
709 | |
710 | vmw_execbuf_fence_commands(NULL, dev_priv, &fence, NULL); | |
711 | if (!fence) | |
712 | return -ENOMEM; | |
713 | ||
714 | ret = vmw_event_fence_action_queue(file_priv, fence, | |
715 | &event->base, | |
716 | &event->event.tv_sec, | |
717 | &event->event.tv_usec, | |
718 | true); | |
719 | vmw_fence_obj_unreference(&fence); | |
4e0858a6 TH |
720 | } else { |
721 | vmw_fifo_flush(dev_priv, false); | |
35c05125 SY |
722 | } |
723 | ||
724 | return ret; | |
725 | ||
726 | err_unpin_display_and_content: | |
727 | vmw_stdu_unpin_display(stdu); | |
728 | err_out: | |
729 | crtc->primary->fb = NULL; | |
730 | stdu->content_fb = NULL; | |
731 | return ret; | |
732 | } | |
733 | ||
734 | ||
6bf6bf03 TH |
735 | /** |
736 | * vmw_stdu_dmabuf_clip - Callback to encode a suface DMA command cliprect | |
737 | * | |
738 | * @dirty: The closure structure. | |
739 | * | |
740 | * Encodes a surface DMA command cliprect and updates the bounding box | |
741 | * for the DMA. | |
742 | */ | |
743 | static void vmw_stdu_dmabuf_clip(struct vmw_kms_dirty *dirty) | |
744 | { | |
745 | struct vmw_stdu_dirty *ddirty = | |
746 | container_of(dirty, struct vmw_stdu_dirty, base); | |
747 | struct vmw_stdu_dma *cmd = dirty->cmd; | |
748 | struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1]; | |
749 | ||
750 | blit += dirty->num_hits; | |
751 | blit->srcx = dirty->fb_x; | |
752 | blit->srcy = dirty->fb_y; | |
753 | blit->x = dirty->unit_x1; | |
754 | blit->y = dirty->unit_y1; | |
755 | blit->d = 1; | |
756 | blit->w = dirty->unit_x2 - dirty->unit_x1; | |
757 | blit->h = dirty->unit_y2 - dirty->unit_y1; | |
758 | dirty->num_hits++; | |
759 | ||
760 | if (ddirty->transfer != SVGA3D_WRITE_HOST_VRAM) | |
761 | return; | |
762 | ||
763 | /* Destination bounding box */ | |
764 | ddirty->left = min_t(s32, ddirty->left, dirty->unit_x1); | |
765 | ddirty->top = min_t(s32, ddirty->top, dirty->unit_y1); | |
766 | ddirty->right = max_t(s32, ddirty->right, dirty->unit_x2); | |
767 | ddirty->bottom = max_t(s32, ddirty->bottom, dirty->unit_y2); | |
768 | } | |
769 | ||
770 | /** | |
771 | * vmw_stdu_dmabuf_fifo_commit - Callback to fill in and submit a DMA command. | |
772 | * | |
773 | * @dirty: The closure structure. | |
774 | * | |
775 | * Fills in the missing fields in a DMA command, and optionally encodes | |
776 | * a screen target update command, depending on transfer direction. | |
777 | */ | |
778 | static void vmw_stdu_dmabuf_fifo_commit(struct vmw_kms_dirty *dirty) | |
779 | { | |
780 | struct vmw_stdu_dirty *ddirty = | |
781 | container_of(dirty, struct vmw_stdu_dirty, base); | |
782 | struct vmw_screen_target_display_unit *stdu = | |
783 | container_of(dirty->unit, typeof(*stdu), base); | |
784 | struct vmw_stdu_dma *cmd = dirty->cmd; | |
785 | struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1]; | |
786 | SVGA3dCmdSurfaceDMASuffix *suffix = | |
787 | (SVGA3dCmdSurfaceDMASuffix *) &blit[dirty->num_hits]; | |
788 | size_t blit_size = sizeof(*blit) * dirty->num_hits + sizeof(*suffix); | |
789 | ||
790 | if (!dirty->num_hits) { | |
791 | vmw_fifo_commit(dirty->dev_priv, 0); | |
792 | return; | |
793 | } | |
794 | ||
795 | cmd->header.id = SVGA_3D_CMD_SURFACE_DMA; | |
796 | cmd->header.size = sizeof(cmd->body) + blit_size; | |
797 | vmw_bo_get_guest_ptr(&ddirty->buf->base, &cmd->body.guest.ptr); | |
798 | cmd->body.guest.pitch = ddirty->pitch; | |
799 | cmd->body.host.sid = stdu->display_srf->res.id; | |
800 | cmd->body.host.face = 0; | |
801 | cmd->body.host.mipmap = 0; | |
802 | cmd->body.transfer = ddirty->transfer; | |
803 | suffix->suffixSize = sizeof(*suffix); | |
804 | suffix->maximumOffset = ddirty->buf->base.num_pages * PAGE_SIZE; | |
805 | ||
806 | if (ddirty->transfer == SVGA3D_WRITE_HOST_VRAM) { | |
807 | blit_size += sizeof(struct vmw_stdu_update); | |
808 | ||
809 | vmw_stdu_populate_update(&suffix[1], stdu->base.unit, | |
810 | ddirty->left, ddirty->right, | |
811 | ddirty->top, ddirty->bottom); | |
812 | } | |
813 | ||
814 | vmw_fifo_commit(dirty->dev_priv, sizeof(*cmd) + blit_size); | |
815 | ||
816 | ddirty->left = ddirty->top = S32_MAX; | |
817 | ddirty->right = ddirty->bottom = S32_MIN; | |
818 | } | |
819 | ||
820 | /** | |
821 | * vmw_kms_stdu_dma - Perform a DMA transfer between a dma-buffer backed | |
822 | * framebuffer and the screen target system. | |
823 | * | |
824 | * @dev_priv: Pointer to the device private structure. | |
825 | * @file_priv: Pointer to a struct drm-file identifying the caller. May be | |
826 | * set to NULL, but then @user_fence_rep must also be set to NULL. | |
827 | * @vfb: Pointer to the dma-buffer backed framebuffer. | |
828 | * @clips: Array of clip rects. Either @clips or @vclips must be NULL. | |
829 | * @vclips: Alternate array of clip rects. Either @clips or @vclips must | |
830 | * be NULL. | |
831 | * @num_clips: Number of clip rects in @clips or @vclips. | |
832 | * @increment: Increment to use when looping over @clips or @vclips. | |
833 | * @to_surface: Whether to DMA to the screen target system as opposed to | |
834 | * from the screen target system. | |
835 | * @interruptible: Whether to perform waits interruptible if possible. | |
836 | * | |
837 | * If DMA-ing till the screen target system, the function will also notify | |
838 | * the screen target system that a bounding box of the cliprects has been | |
839 | * updated. | |
840 | * Returns 0 on success, negative error code on failure. -ERESTARTSYS if | |
841 | * interrupted. | |
842 | */ | |
843 | int vmw_kms_stdu_dma(struct vmw_private *dev_priv, | |
844 | struct drm_file *file_priv, | |
845 | struct vmw_framebuffer *vfb, | |
846 | struct drm_vmw_fence_rep __user *user_fence_rep, | |
847 | struct drm_clip_rect *clips, | |
848 | struct drm_vmw_rect *vclips, | |
849 | uint32_t num_clips, | |
850 | int increment, | |
851 | bool to_surface, | |
852 | bool interruptible) | |
853 | { | |
854 | struct vmw_dma_buffer *buf = | |
855 | container_of(vfb, struct vmw_framebuffer_dmabuf, base)->buffer; | |
856 | struct vmw_stdu_dirty ddirty; | |
857 | int ret; | |
858 | ||
859 | ret = vmw_kms_helper_buffer_prepare(dev_priv, buf, interruptible, | |
860 | false); | |
861 | if (ret) | |
862 | return ret; | |
863 | ||
864 | ddirty.transfer = (to_surface) ? SVGA3D_WRITE_HOST_VRAM : | |
865 | SVGA3D_READ_HOST_VRAM; | |
866 | ddirty.left = ddirty.top = S32_MAX; | |
867 | ddirty.right = ddirty.bottom = S32_MIN; | |
868 | ddirty.pitch = vfb->base.pitches[0]; | |
869 | ddirty.buf = buf; | |
870 | ddirty.base.fifo_commit = vmw_stdu_dmabuf_fifo_commit; | |
871 | ddirty.base.clip = vmw_stdu_dmabuf_clip; | |
872 | ddirty.base.fifo_reserve_size = sizeof(struct vmw_stdu_dma) + | |
873 | num_clips * sizeof(SVGA3dCopyBox) + | |
874 | sizeof(SVGA3dCmdSurfaceDMASuffix); | |
875 | if (to_surface) | |
876 | ddirty.base.fifo_reserve_size += sizeof(struct vmw_stdu_update); | |
877 | ||
878 | ret = vmw_kms_helper_dirty(dev_priv, vfb, clips, vclips, | |
879 | 0, 0, num_clips, increment, &ddirty.base); | |
880 | vmw_kms_helper_buffer_finish(dev_priv, file_priv, buf, NULL, | |
881 | user_fence_rep); | |
882 | ||
883 | return ret; | |
884 | } | |
885 | ||
886 | /** | |
887 | * vmw_stdu_surface_clip - Callback to encode a surface copy command cliprect | |
888 | * | |
889 | * @dirty: The closure structure. | |
890 | * | |
891 | * Encodes a surface copy command cliprect and updates the bounding box | |
892 | * for the copy. | |
893 | */ | |
894 | static void vmw_kms_stdu_surface_clip(struct vmw_kms_dirty *dirty) | |
895 | { | |
896 | struct vmw_stdu_dirty *sdirty = | |
897 | container_of(dirty, struct vmw_stdu_dirty, base); | |
898 | struct vmw_stdu_surface_copy *cmd = dirty->cmd; | |
899 | struct vmw_screen_target_display_unit *stdu = | |
900 | container_of(dirty->unit, typeof(*stdu), base); | |
901 | ||
902 | if (sdirty->sid != stdu->display_srf->res.id) { | |
903 | struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1]; | |
904 | ||
905 | blit += dirty->num_hits; | |
906 | blit->srcx = dirty->fb_x; | |
907 | blit->srcy = dirty->fb_y; | |
908 | blit->x = dirty->unit_x1; | |
909 | blit->y = dirty->unit_y1; | |
910 | blit->d = 1; | |
911 | blit->w = dirty->unit_x2 - dirty->unit_x1; | |
912 | blit->h = dirty->unit_y2 - dirty->unit_y1; | |
913 | } | |
914 | ||
915 | dirty->num_hits++; | |
916 | ||
917 | /* Destination bounding box */ | |
918 | sdirty->left = min_t(s32, sdirty->left, dirty->unit_x1); | |
919 | sdirty->top = min_t(s32, sdirty->top, dirty->unit_y1); | |
920 | sdirty->right = max_t(s32, sdirty->right, dirty->unit_x2); | |
921 | sdirty->bottom = max_t(s32, sdirty->bottom, dirty->unit_y2); | |
922 | } | |
923 | ||
924 | /** | |
925 | * vmw_stdu_surface_fifo_commit - Callback to fill in and submit a surface | |
926 | * copy command. | |
927 | * | |
928 | * @dirty: The closure structure. | |
929 | * | |
930 | * Fills in the missing fields in a surface copy command, and encodes a screen | |
931 | * target update command. | |
932 | */ | |
933 | static void vmw_kms_stdu_surface_fifo_commit(struct vmw_kms_dirty *dirty) | |
934 | { | |
935 | struct vmw_stdu_dirty *sdirty = | |
936 | container_of(dirty, struct vmw_stdu_dirty, base); | |
937 | struct vmw_screen_target_display_unit *stdu = | |
938 | container_of(dirty->unit, typeof(*stdu), base); | |
939 | struct vmw_stdu_surface_copy *cmd = dirty->cmd; | |
940 | struct vmw_stdu_update *update; | |
941 | size_t blit_size = sizeof(SVGA3dCopyBox) * dirty->num_hits; | |
942 | size_t commit_size; | |
943 | ||
944 | if (!dirty->num_hits) { | |
945 | vmw_fifo_commit(dirty->dev_priv, 0); | |
946 | return; | |
947 | } | |
948 | ||
949 | if (sdirty->sid != stdu->display_srf->res.id) { | |
950 | struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1]; | |
951 | ||
952 | cmd->header.id = SVGA_3D_CMD_SURFACE_COPY; | |
953 | cmd->header.size = sizeof(cmd->body) + blit_size; | |
954 | cmd->body.src.sid = sdirty->sid; | |
955 | cmd->body.dest.sid = stdu->display_srf->res.id; | |
956 | update = (struct vmw_stdu_update *) &blit[dirty->num_hits]; | |
957 | commit_size = sizeof(*cmd) + blit_size + sizeof(*update); | |
958 | } else { | |
959 | update = dirty->cmd; | |
960 | commit_size = sizeof(*update); | |
961 | } | |
962 | ||
963 | vmw_stdu_populate_update(update, stdu->base.unit, sdirty->left, | |
964 | sdirty->right, sdirty->top, sdirty->bottom); | |
965 | ||
966 | vmw_fifo_commit(dirty->dev_priv, commit_size); | |
967 | ||
968 | sdirty->left = sdirty->top = S32_MAX; | |
969 | sdirty->right = sdirty->bottom = S32_MIN; | |
970 | } | |
971 | ||
972 | /** | |
973 | * vmw_kms_stdu_surface_dirty - Dirty part of a surface backed framebuffer | |
974 | * | |
975 | * @dev_priv: Pointer to the device private structure. | |
976 | * @framebuffer: Pointer to the surface-buffer backed framebuffer. | |
977 | * @clips: Array of clip rects. Either @clips or @vclips must be NULL. | |
978 | * @vclips: Alternate array of clip rects. Either @clips or @vclips must | |
979 | * be NULL. | |
980 | * @srf: Pointer to surface to blit from. If NULL, the surface attached | |
981 | * to @framebuffer will be used. | |
982 | * @dest_x: X coordinate offset to align @srf with framebuffer coordinates. | |
983 | * @dest_y: Y coordinate offset to align @srf with framebuffer coordinates. | |
984 | * @num_clips: Number of clip rects in @clips. | |
985 | * @inc: Increment to use when looping over @clips. | |
986 | * @out_fence: If non-NULL, will return a ref-counted pointer to a | |
987 | * struct vmw_fence_obj. The returned fence pointer may be NULL in which | |
988 | * case the device has already synchronized. | |
989 | * | |
990 | * Returns 0 on success, negative error code on failure. -ERESTARTSYS if | |
991 | * interrupted. | |
992 | */ | |
993 | int vmw_kms_stdu_surface_dirty(struct vmw_private *dev_priv, | |
994 | struct vmw_framebuffer *framebuffer, | |
995 | struct drm_clip_rect *clips, | |
996 | struct drm_vmw_rect *vclips, | |
997 | struct vmw_resource *srf, | |
998 | s32 dest_x, | |
999 | s32 dest_y, | |
1000 | unsigned num_clips, int inc, | |
1001 | struct vmw_fence_obj **out_fence) | |
1002 | { | |
1003 | struct vmw_framebuffer_surface *vfbs = | |
1004 | container_of(framebuffer, typeof(*vfbs), base); | |
1005 | struct vmw_stdu_dirty sdirty; | |
1006 | int ret; | |
1007 | ||
1008 | if (!srf) | |
1009 | srf = &vfbs->surface->res; | |
1010 | ||
1011 | ret = vmw_kms_helper_resource_prepare(srf, true); | |
1012 | if (ret) | |
1013 | return ret; | |
1014 | ||
1015 | if (vfbs->is_dmabuf_proxy) { | |
1016 | ret = vmw_kms_update_proxy(srf, clips, num_clips, inc); | |
1017 | if (ret) | |
1018 | goto out_finish; | |
1019 | } | |
1020 | ||
1021 | sdirty.base.fifo_commit = vmw_kms_stdu_surface_fifo_commit; | |
1022 | sdirty.base.clip = vmw_kms_stdu_surface_clip; | |
1023 | sdirty.base.fifo_reserve_size = sizeof(struct vmw_stdu_surface_copy) + | |
1024 | sizeof(SVGA3dCopyBox) * num_clips + | |
1025 | sizeof(struct vmw_stdu_update); | |
1026 | sdirty.sid = srf->id; | |
1027 | sdirty.left = sdirty.top = S32_MAX; | |
1028 | sdirty.right = sdirty.bottom = S32_MIN; | |
1029 | ||
1030 | ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips, | |
1031 | dest_x, dest_y, num_clips, inc, | |
1032 | &sdirty.base); | |
1033 | out_finish: | |
1034 | vmw_kms_helper_resource_finish(srf, out_fence); | |
1035 | ||
1036 | return ret; | |
1037 | } | |
1038 | ||
35c05125 SY |
1039 | |
1040 | /* | |
1041 | * Screen Target CRTC dispatch table | |
1042 | */ | |
1043 | static struct drm_crtc_funcs vmw_stdu_crtc_funcs = { | |
35c05125 SY |
1044 | .cursor_set = vmw_du_crtc_cursor_set, |
1045 | .cursor_move = vmw_du_crtc_cursor_move, | |
1046 | .gamma_set = vmw_du_crtc_gamma_set, | |
1047 | .destroy = vmw_stdu_crtc_destroy, | |
1048 | .set_config = vmw_stdu_crtc_set_config, | |
1049 | .page_flip = vmw_stdu_crtc_page_flip, | |
1050 | }; | |
1051 | ||
1052 | ||
1053 | ||
1054 | /****************************************************************************** | |
1055 | * Screen Target Display Unit Encoder Functions | |
1056 | *****************************************************************************/ | |
1057 | ||
1058 | /** | |
1059 | * vmw_stdu_encoder_destroy - cleans up the STDU | |
1060 | * | |
1061 | * @encoder: used the get the containing STDU | |
1062 | * | |
1063 | * vmwgfx cleans up crtc/encoder/connector all at the same time so technically | |
1064 | * this can be a no-op. Nevertheless, it doesn't hurt of have this in case | |
1065 | * the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't | |
1066 | * get called. | |
1067 | */ | |
1068 | static void vmw_stdu_encoder_destroy(struct drm_encoder *encoder) | |
1069 | { | |
1070 | vmw_stdu_destroy(vmw_encoder_to_stdu(encoder)); | |
1071 | } | |
1072 | ||
1073 | static struct drm_encoder_funcs vmw_stdu_encoder_funcs = { | |
1074 | .destroy = vmw_stdu_encoder_destroy, | |
1075 | }; | |
1076 | ||
1077 | ||
1078 | ||
1079 | /****************************************************************************** | |
1080 | * Screen Target Display Unit Connector Functions | |
1081 | *****************************************************************************/ | |
1082 | ||
1083 | /** | |
1084 | * vmw_stdu_connector_destroy - cleans up the STDU | |
1085 | * | |
1086 | * @connector: used to get the containing STDU | |
1087 | * | |
1088 | * vmwgfx cleans up crtc/encoder/connector all at the same time so technically | |
1089 | * this can be a no-op. Nevertheless, it doesn't hurt of have this in case | |
1090 | * the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't | |
1091 | * get called. | |
1092 | */ | |
1093 | static void vmw_stdu_connector_destroy(struct drm_connector *connector) | |
1094 | { | |
1095 | vmw_stdu_destroy(vmw_connector_to_stdu(connector)); | |
1096 | } | |
1097 | ||
1098 | ||
1099 | ||
1100 | static struct drm_connector_funcs vmw_stdu_connector_funcs = { | |
1101 | .dpms = vmw_du_connector_dpms, | |
35c05125 SY |
1102 | .detect = vmw_du_connector_detect, |
1103 | .fill_modes = vmw_du_connector_fill_modes, | |
1104 | .set_property = vmw_du_connector_set_property, | |
1105 | .destroy = vmw_stdu_connector_destroy, | |
1106 | }; | |
1107 | ||
1108 | ||
1109 | ||
1110 | /** | |
1111 | * vmw_stdu_init - Sets up a Screen Target Display Unit | |
1112 | * | |
1113 | * @dev_priv: VMW DRM device | |
1114 | * @unit: unit number range from 0 to VMWGFX_NUM_DISPLAY_UNITS | |
1115 | * | |
1116 | * This function is called once per CRTC, and allocates one Screen Target | |
1117 | * display unit to represent that CRTC. Since the SVGA device does not separate | |
1118 | * out encoder and connector, they are represented as part of the STDU as well. | |
1119 | */ | |
1120 | static int vmw_stdu_init(struct vmw_private *dev_priv, unsigned unit) | |
1121 | { | |
1122 | struct vmw_screen_target_display_unit *stdu; | |
1123 | struct drm_device *dev = dev_priv->dev; | |
1124 | struct drm_connector *connector; | |
1125 | struct drm_encoder *encoder; | |
1126 | struct drm_crtc *crtc; | |
1127 | ||
1128 | ||
1129 | stdu = kzalloc(sizeof(*stdu), GFP_KERNEL); | |
1130 | if (!stdu) | |
1131 | return -ENOMEM; | |
1132 | ||
1133 | stdu->base.unit = unit; | |
1134 | crtc = &stdu->base.crtc; | |
1135 | encoder = &stdu->base.encoder; | |
1136 | connector = &stdu->base.connector; | |
1137 | ||
1138 | stdu->base.pref_active = (unit == 0); | |
1139 | stdu->base.pref_width = dev_priv->initial_width; | |
1140 | stdu->base.pref_height = dev_priv->initial_height; | |
35c05125 SY |
1141 | stdu->base.is_implicit = true; |
1142 | ||
1143 | drm_connector_init(dev, connector, &vmw_stdu_connector_funcs, | |
1144 | DRM_MODE_CONNECTOR_VIRTUAL); | |
1145 | connector->status = vmw_du_connector_detect(connector, false); | |
1146 | ||
1147 | drm_encoder_init(dev, encoder, &vmw_stdu_encoder_funcs, | |
13a3d91f | 1148 | DRM_MODE_ENCODER_VIRTUAL, NULL); |
35c05125 SY |
1149 | drm_mode_connector_attach_encoder(connector, encoder); |
1150 | encoder->possible_crtcs = (1 << unit); | |
1151 | encoder->possible_clones = 0; | |
1152 | ||
1153 | (void) drm_connector_register(connector); | |
1154 | ||
1155 | drm_crtc_init(dev, crtc, &vmw_stdu_crtc_funcs); | |
1156 | ||
1157 | drm_mode_crtc_set_gamma_size(crtc, 256); | |
1158 | ||
1159 | drm_object_attach_property(&connector->base, | |
1160 | dev->mode_config.dirty_info_property, | |
1161 | 1); | |
1162 | ||
1163 | return 0; | |
1164 | } | |
1165 | ||
1166 | ||
1167 | ||
1168 | /** | |
1169 | * vmw_stdu_destroy - Cleans up a vmw_screen_target_display_unit | |
1170 | * | |
1171 | * @stdu: Screen Target Display Unit to be destroyed | |
1172 | * | |
1173 | * Clean up after vmw_stdu_init | |
1174 | */ | |
1175 | static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu) | |
1176 | { | |
1177 | vmw_stdu_unpin_display(stdu); | |
1178 | ||
1179 | vmw_du_cleanup(&stdu->base); | |
1180 | kfree(stdu); | |
1181 | } | |
1182 | ||
1183 | ||
1184 | ||
1185 | /****************************************************************************** | |
1186 | * Screen Target Display KMS Functions | |
1187 | * | |
1188 | * These functions are called by the common KMS code in vmwgfx_kms.c | |
1189 | *****************************************************************************/ | |
1190 | ||
1191 | /** | |
1192 | * vmw_kms_stdu_init_display - Initializes a Screen Target based display | |
1193 | * | |
1194 | * @dev_priv: VMW DRM device | |
1195 | * | |
1196 | * This function initialize a Screen Target based display device. It checks | |
1197 | * the capability bits to make sure the underlying hardware can support | |
1198 | * screen targets, and then creates the maximum number of CRTCs, a.k.a Display | |
1199 | * Units, as supported by the display hardware. | |
1200 | * | |
1201 | * RETURNS: | |
1202 | * 0 on success, error code otherwise | |
1203 | */ | |
1204 | int vmw_kms_stdu_init_display(struct vmw_private *dev_priv) | |
1205 | { | |
1206 | struct drm_device *dev = dev_priv->dev; | |
1207 | int i, ret; | |
1208 | ||
1209 | ||
1210 | /* Do nothing if Screen Target support is turned off */ | |
1211 | if (!VMWGFX_ENABLE_SCREEN_TARGET_OTABLE) | |
1212 | return -ENOSYS; | |
1213 | ||
f89c6c32 | 1214 | if (!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS)) |
35c05125 SY |
1215 | return -ENOSYS; |
1216 | ||
1217 | ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS); | |
1218 | if (unlikely(ret != 0)) | |
1219 | return ret; | |
1220 | ||
1221 | ret = drm_mode_create_dirty_info_property(dev); | |
1222 | if (unlikely(ret != 0)) | |
1223 | goto err_vblank_cleanup; | |
1224 | ||
6bf6bf03 TH |
1225 | dev_priv->active_display_unit = vmw_du_screen_target; |
1226 | ||
35c05125 SY |
1227 | for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) { |
1228 | ret = vmw_stdu_init(dev_priv, i); | |
1229 | ||
1230 | if (unlikely(ret != 0)) { | |
1231 | DRM_ERROR("Failed to initialize STDU %d", i); | |
1232 | goto err_vblank_cleanup; | |
1233 | } | |
1234 | } | |
1235 | ||
35c05125 SY |
1236 | DRM_INFO("Screen Target Display device initialized\n"); |
1237 | ||
1238 | return 0; | |
1239 | ||
1240 | err_vblank_cleanup: | |
1241 | drm_vblank_cleanup(dev); | |
1242 | return ret; | |
1243 | } | |
1244 | ||
1245 | ||
1246 | ||
1247 | /** | |
1248 | * vmw_kms_stdu_close_display - Cleans up after vmw_kms_stdu_init_display | |
1249 | * | |
1250 | * @dev_priv: VMW DRM device | |
1251 | * | |
1252 | * Frees up any resources allocated by vmw_kms_stdu_init_display | |
1253 | * | |
1254 | * RETURNS: | |
1255 | * 0 on success | |
1256 | */ | |
1257 | int vmw_kms_stdu_close_display(struct vmw_private *dev_priv) | |
1258 | { | |
1259 | struct drm_device *dev = dev_priv->dev; | |
1260 | ||
1261 | drm_vblank_cleanup(dev); | |
1262 | ||
1263 | return 0; | |
1264 | } |