Merge branches 'pm-core', 'powercap' and 'pm-tools'
[linux-2.6-block.git] / drivers / gpu / drm / qxl / qxl_display.c
1 /*
2  * Copyright 2013 Red Hat Inc.
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 shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: Dave Airlie
23  *          Alon Levy
24  */
25
26
27 #include <linux/crc32.h>
28
29 #include "qxl_drv.h"
30 #include "qxl_object.h"
31 #include "drm_crtc_helper.h"
32 #include <drm/drm_plane_helper.h>
33
34 static bool qxl_head_enabled(struct qxl_head *head)
35 {
36         return head->width && head->height;
37 }
38
39 void qxl_alloc_client_monitors_config(struct qxl_device *qdev, unsigned count)
40 {
41         if (qdev->client_monitors_config &&
42             count > qdev->client_monitors_config->count) {
43                 kfree(qdev->client_monitors_config);
44                 qdev->client_monitors_config = NULL;
45         }
46         if (!qdev->client_monitors_config) {
47                 qdev->client_monitors_config = kzalloc(
48                                 sizeof(struct qxl_monitors_config) +
49                                 sizeof(struct qxl_head) * count, GFP_KERNEL);
50                 if (!qdev->client_monitors_config) {
51                         qxl_io_log(qdev,
52                                    "%s: allocation failure for %u heads\n",
53                                    __func__, count);
54                         return;
55                 }
56         }
57         qdev->client_monitors_config->count = count;
58 }
59
60 static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev)
61 {
62         int i;
63         int num_monitors;
64         uint32_t crc;
65
66         num_monitors = qdev->rom->client_monitors_config.count;
67         crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config,
68                   sizeof(qdev->rom->client_monitors_config));
69         if (crc != qdev->rom->client_monitors_config_crc) {
70                 qxl_io_log(qdev, "crc mismatch: have %X (%zd) != %X\n", crc,
71                            sizeof(qdev->rom->client_monitors_config),
72                            qdev->rom->client_monitors_config_crc);
73                 return 1;
74         }
75         if (num_monitors > qdev->monitors_config->max_allowed) {
76                 DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n",
77                               qdev->monitors_config->max_allowed, num_monitors);
78                 num_monitors = qdev->monitors_config->max_allowed;
79         } else {
80                 num_monitors = qdev->rom->client_monitors_config.count;
81         }
82         qxl_alloc_client_monitors_config(qdev, num_monitors);
83         /* we copy max from the client but it isn't used */
84         qdev->client_monitors_config->max_allowed =
85                                 qdev->monitors_config->max_allowed;
86         for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) {
87                 struct qxl_urect *c_rect =
88                         &qdev->rom->client_monitors_config.heads[i];
89                 struct qxl_head *client_head =
90                         &qdev->client_monitors_config->heads[i];
91                 client_head->x = c_rect->left;
92                 client_head->y = c_rect->top;
93                 client_head->width = c_rect->right - c_rect->left;
94                 client_head->height = c_rect->bottom - c_rect->top;
95                 client_head->surface_id = 0;
96                 client_head->id = i;
97                 client_head->flags = 0;
98                 DRM_DEBUG_KMS("read %dx%d+%d+%d\n", client_head->width, client_head->height,
99                           client_head->x, client_head->y);
100         }
101         return 0;
102 }
103
104 static void qxl_update_offset_props(struct qxl_device *qdev)
105 {
106         struct drm_device *dev = qdev->ddev;
107         struct drm_connector *connector;
108         struct qxl_output *output;
109         struct qxl_head *head;
110
111         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
112                 output = drm_connector_to_qxl_output(connector);
113
114                 head = &qdev->client_monitors_config->heads[output->index];
115
116                 drm_object_property_set_value(&connector->base,
117                         dev->mode_config.suggested_x_property, head->x);
118                 drm_object_property_set_value(&connector->base,
119                         dev->mode_config.suggested_y_property, head->y);
120         }
121 }
122
123 void qxl_display_read_client_monitors_config(struct qxl_device *qdev)
124 {
125
126         struct drm_device *dev = qdev->ddev;
127         while (qxl_display_copy_rom_client_monitors_config(qdev)) {
128                 qxl_io_log(qdev, "failed crc check for client_monitors_config,"
129                                  " retrying\n");
130         }
131
132         drm_modeset_lock_all(dev);
133         qxl_update_offset_props(qdev);
134         drm_modeset_unlock_all(dev);
135         if (!drm_helper_hpd_irq_event(qdev->ddev)) {
136                 /* notify that the monitor configuration changed, to
137                    adjust at the arbitrary resolution */
138                 drm_kms_helper_hotplug_event(qdev->ddev);
139         }
140 }
141
142 static int qxl_add_monitors_config_modes(struct drm_connector *connector,
143                                          unsigned *pwidth,
144                                          unsigned *pheight)
145 {
146         struct drm_device *dev = connector->dev;
147         struct qxl_device *qdev = dev->dev_private;
148         struct qxl_output *output = drm_connector_to_qxl_output(connector);
149         int h = output->index;
150         struct drm_display_mode *mode = NULL;
151         struct qxl_head *head;
152
153         if (!qdev->client_monitors_config)
154                 return 0;
155         head = &qdev->client_monitors_config->heads[h];
156
157         mode = drm_cvt_mode(dev, head->width, head->height, 60, false, false,
158                             false);
159         mode->type |= DRM_MODE_TYPE_PREFERRED;
160         *pwidth = head->width;
161         *pheight = head->height;
162         drm_mode_probed_add(connector, mode);
163         /* remember the last custom size for mode validation */
164         qdev->monitors_config_width = mode->hdisplay;
165         qdev->monitors_config_height = mode->vdisplay;
166         return 1;
167 }
168
169 static struct mode_size {
170         int w;
171         int h;
172 } common_modes[] = {
173         { 640,  480},
174         { 720,  480},
175         { 800,  600},
176         { 848,  480},
177         {1024,  768},
178         {1152,  768},
179         {1280,  720},
180         {1280,  800},
181         {1280,  854},
182         {1280,  960},
183         {1280, 1024},
184         {1440,  900},
185         {1400, 1050},
186         {1680, 1050},
187         {1600, 1200},
188         {1920, 1080},
189         {1920, 1200}
190 };
191
192 static int qxl_add_common_modes(struct drm_connector *connector,
193                                 unsigned pwidth,
194                                 unsigned pheight)
195 {
196         struct drm_device *dev = connector->dev;
197         struct drm_display_mode *mode = NULL;
198         int i;
199         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
200                 mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h,
201                                     60, false, false, false);
202                 if (common_modes[i].w == pwidth && common_modes[i].h == pheight)
203                         mode->type |= DRM_MODE_TYPE_PREFERRED;
204                 drm_mode_probed_add(connector, mode);
205         }
206         return i - 1;
207 }
208
209 static void qxl_crtc_destroy(struct drm_crtc *crtc)
210 {
211         struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
212
213         drm_crtc_cleanup(crtc);
214         kfree(qxl_crtc);
215 }
216
217 static int qxl_crtc_page_flip(struct drm_crtc *crtc,
218                               struct drm_framebuffer *fb,
219                               struct drm_pending_vblank_event *event,
220                               uint32_t page_flip_flags)
221 {
222         struct drm_device *dev = crtc->dev;
223         struct qxl_device *qdev = dev->dev_private;
224         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
225         struct qxl_framebuffer *qfb_src = to_qxl_framebuffer(fb);
226         struct qxl_framebuffer *qfb_old = to_qxl_framebuffer(crtc->primary->fb);
227         struct qxl_bo *bo_old = gem_to_qxl_bo(qfb_old->obj);
228         struct qxl_bo *bo = gem_to_qxl_bo(qfb_src->obj);
229         unsigned long flags;
230         struct drm_clip_rect norect = {
231             .x1 = 0,
232             .y1 = 0,
233             .x2 = fb->width,
234             .y2 = fb->height
235         };
236         int inc = 1;
237         int one_clip_rect = 1;
238         int ret = 0;
239
240         crtc->primary->fb = fb;
241         bo_old->is_primary = false;
242         bo->is_primary = true;
243
244         ret = qxl_bo_reserve(bo, false);
245         if (ret)
246                 return ret;
247         ret = qxl_bo_pin(bo, bo->type, NULL);
248         qxl_bo_unreserve(bo);
249         if (ret)
250                 return ret;
251
252         qxl_draw_dirty_fb(qdev, qfb_src, bo, 0, 0,
253                           &norect, one_clip_rect, inc);
254
255         drm_vblank_get(dev, qcrtc->index);
256
257         if (event) {
258                 spin_lock_irqsave(&dev->event_lock, flags);
259                 drm_send_vblank_event(dev, qcrtc->index, event);
260                 spin_unlock_irqrestore(&dev->event_lock, flags);
261         }
262         drm_vblank_put(dev, qcrtc->index);
263
264         ret = qxl_bo_reserve(bo, false);
265         if (!ret) {
266                 qxl_bo_unpin(bo);
267                 qxl_bo_unreserve(bo);
268         }
269
270         return 0;
271 }
272
273 static int
274 qxl_hide_cursor(struct qxl_device *qdev)
275 {
276         struct qxl_release *release;
277         struct qxl_cursor_cmd *cmd;
278         int ret;
279
280         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
281                                          &release, NULL);
282         if (ret)
283                 return ret;
284
285         ret = qxl_release_reserve_list(release, true);
286         if (ret) {
287                 qxl_release_free(qdev, release);
288                 return ret;
289         }
290
291         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
292         cmd->type = QXL_CURSOR_HIDE;
293         qxl_release_unmap(qdev, release, &cmd->release_info);
294
295         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
296         qxl_release_fence_buffer_objects(release);
297         return 0;
298 }
299
300 static int qxl_crtc_cursor_set2(struct drm_crtc *crtc,
301                                 struct drm_file *file_priv,
302                                 uint32_t handle,
303                                 uint32_t width,
304                                 uint32_t height, int32_t hot_x, int32_t hot_y)
305 {
306         struct drm_device *dev = crtc->dev;
307         struct qxl_device *qdev = dev->dev_private;
308         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
309         struct drm_gem_object *obj;
310         struct qxl_cursor *cursor;
311         struct qxl_cursor_cmd *cmd;
312         struct qxl_bo *cursor_bo, *user_bo;
313         struct qxl_release *release;
314         void *user_ptr;
315
316         int size = 64*64*4;
317         int ret = 0;
318         if (!handle)
319                 return qxl_hide_cursor(qdev);
320
321         obj = drm_gem_object_lookup(crtc->dev, file_priv, handle);
322         if (!obj) {
323                 DRM_ERROR("cannot find cursor object\n");
324                 return -ENOENT;
325         }
326
327         user_bo = gem_to_qxl_bo(obj);
328
329         ret = qxl_bo_reserve(user_bo, false);
330         if (ret)
331                 goto out_unref;
332
333         ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL);
334         qxl_bo_unreserve(user_bo);
335         if (ret)
336                 goto out_unref;
337
338         ret = qxl_bo_kmap(user_bo, &user_ptr);
339         if (ret)
340                 goto out_unpin;
341
342         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
343                                          QXL_RELEASE_CURSOR_CMD,
344                                          &release, NULL);
345         if (ret)
346                 goto out_kunmap;
347
348         ret = qxl_alloc_bo_reserved(qdev, release, sizeof(struct qxl_cursor) + size,
349                            &cursor_bo);
350         if (ret)
351                 goto out_free_release;
352
353         ret = qxl_release_reserve_list(release, false);
354         if (ret)
355                 goto out_free_bo;
356
357         ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
358         if (ret)
359                 goto out_backoff;
360
361         cursor->header.unique = 0;
362         cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
363         cursor->header.width = 64;
364         cursor->header.height = 64;
365         cursor->header.hot_spot_x = hot_x;
366         cursor->header.hot_spot_y = hot_y;
367         cursor->data_size = size;
368         cursor->chunk.next_chunk = 0;
369         cursor->chunk.prev_chunk = 0;
370         cursor->chunk.data_size = size;
371
372         memcpy(cursor->chunk.data, user_ptr, size);
373
374         qxl_bo_kunmap(cursor_bo);
375
376         qxl_bo_kunmap(user_bo);
377
378         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
379         cmd->type = QXL_CURSOR_SET;
380         cmd->u.set.position.x = qcrtc->cur_x;
381         cmd->u.set.position.y = qcrtc->cur_y;
382
383         cmd->u.set.shape = qxl_bo_physical_address(qdev, cursor_bo, 0);
384
385         cmd->u.set.visible = 1;
386         qxl_release_unmap(qdev, release, &cmd->release_info);
387
388         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
389         qxl_release_fence_buffer_objects(release);
390
391         /* finish with the userspace bo */
392         ret = qxl_bo_reserve(user_bo, false);
393         if (!ret) {
394                 qxl_bo_unpin(user_bo);
395                 qxl_bo_unreserve(user_bo);
396         }
397         drm_gem_object_unreference_unlocked(obj);
398
399         qxl_bo_unref(&cursor_bo);
400
401         return ret;
402
403 out_backoff:
404         qxl_release_backoff_reserve_list(release);
405 out_free_bo:
406         qxl_bo_unref(&cursor_bo);
407 out_free_release:
408         qxl_release_free(qdev, release);
409 out_kunmap:
410         qxl_bo_kunmap(user_bo);
411 out_unpin:
412         qxl_bo_unpin(user_bo);
413 out_unref:
414         drm_gem_object_unreference_unlocked(obj);
415         return ret;
416 }
417
418 static int qxl_crtc_cursor_move(struct drm_crtc *crtc,
419                                 int x, int y)
420 {
421         struct drm_device *dev = crtc->dev;
422         struct qxl_device *qdev = dev->dev_private;
423         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
424         struct qxl_release *release;
425         struct qxl_cursor_cmd *cmd;
426         int ret;
427
428         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
429                                    &release, NULL);
430         if (ret)
431                 return ret;
432
433         ret = qxl_release_reserve_list(release, true);
434         if (ret) {
435                 qxl_release_free(qdev, release);
436                 return ret;
437         }
438
439         qcrtc->cur_x = x;
440         qcrtc->cur_y = y;
441
442         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
443         cmd->type = QXL_CURSOR_MOVE;
444         cmd->u.position.x = qcrtc->cur_x;
445         cmd->u.position.y = qcrtc->cur_y;
446         qxl_release_unmap(qdev, release, &cmd->release_info);
447
448         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
449         qxl_release_fence_buffer_objects(release);
450
451         return 0;
452 }
453
454
455 static const struct drm_crtc_funcs qxl_crtc_funcs = {
456         .cursor_set2 = qxl_crtc_cursor_set2,
457         .cursor_move = qxl_crtc_cursor_move,
458         .set_config = drm_crtc_helper_set_config,
459         .destroy = qxl_crtc_destroy,
460         .page_flip = qxl_crtc_page_flip,
461 };
462
463 static void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
464 {
465         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
466
467         if (qxl_fb->obj)
468                 drm_gem_object_unreference_unlocked(qxl_fb->obj);
469         drm_framebuffer_cleanup(fb);
470         kfree(qxl_fb);
471 }
472
473 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
474                                          struct drm_file *file_priv,
475                                          unsigned flags, unsigned color,
476                                          struct drm_clip_rect *clips,
477                                          unsigned num_clips)
478 {
479         /* TODO: vmwgfx where this was cribbed from had locking. Why? */
480         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
481         struct qxl_device *qdev = qxl_fb->base.dev->dev_private;
482         struct drm_clip_rect norect;
483         struct qxl_bo *qobj;
484         int inc = 1;
485
486         drm_modeset_lock_all(fb->dev);
487
488         qobj = gem_to_qxl_bo(qxl_fb->obj);
489         /* if we aren't primary surface ignore this */
490         if (!qobj->is_primary) {
491                 drm_modeset_unlock_all(fb->dev);
492                 return 0;
493         }
494
495         if (!num_clips) {
496                 num_clips = 1;
497                 clips = &norect;
498                 norect.x1 = norect.y1 = 0;
499                 norect.x2 = fb->width;
500                 norect.y2 = fb->height;
501         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
502                 num_clips /= 2;
503                 inc = 2; /* skip source rects */
504         }
505
506         qxl_draw_dirty_fb(qdev, qxl_fb, qobj, flags, color,
507                           clips, num_clips, inc);
508
509         drm_modeset_unlock_all(fb->dev);
510
511         return 0;
512 }
513
514 static const struct drm_framebuffer_funcs qxl_fb_funcs = {
515         .destroy = qxl_user_framebuffer_destroy,
516         .dirty = qxl_framebuffer_surface_dirty,
517 /*      TODO?
518  *      .create_handle = qxl_user_framebuffer_create_handle, */
519 };
520
521 int
522 qxl_framebuffer_init(struct drm_device *dev,
523                      struct qxl_framebuffer *qfb,
524                      const struct drm_mode_fb_cmd2 *mode_cmd,
525                      struct drm_gem_object *obj)
526 {
527         int ret;
528
529         qfb->obj = obj;
530         ret = drm_framebuffer_init(dev, &qfb->base, &qxl_fb_funcs);
531         if (ret) {
532                 qfb->obj = NULL;
533                 return ret;
534         }
535         drm_helper_mode_fill_fb_struct(&qfb->base, mode_cmd);
536         return 0;
537 }
538
539 static void qxl_crtc_dpms(struct drm_crtc *crtc, int mode)
540 {
541 }
542
543 static bool qxl_crtc_mode_fixup(struct drm_crtc *crtc,
544                                   const struct drm_display_mode *mode,
545                                   struct drm_display_mode *adjusted_mode)
546 {
547         struct drm_device *dev = crtc->dev;
548         struct qxl_device *qdev = dev->dev_private;
549
550         qxl_io_log(qdev, "%s: (%d,%d) => (%d,%d)\n",
551                    __func__,
552                    mode->hdisplay, mode->vdisplay,
553                    adjusted_mode->hdisplay,
554                    adjusted_mode->vdisplay);
555         return true;
556 }
557
558 void
559 qxl_send_monitors_config(struct qxl_device *qdev)
560 {
561         int i;
562
563         BUG_ON(!qdev->ram_header->monitors_config);
564
565         if (qdev->monitors_config->count == 0) {
566                 qxl_io_log(qdev, "%s: 0 monitors??\n", __func__);
567                 return;
568         }
569         for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
570                 struct qxl_head *head = &qdev->monitors_config->heads[i];
571
572                 if (head->y > 8192 || head->x > 8192 ||
573                     head->width > 8192 || head->height > 8192) {
574                         DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
575                                   i, head->width, head->height,
576                                   head->x, head->y);
577                         return;
578                 }
579         }
580         qxl_io_monitors_config(qdev);
581 }
582
583 static void qxl_monitors_config_set(struct qxl_device *qdev,
584                                     int index,
585                                     unsigned x, unsigned y,
586                                     unsigned width, unsigned height,
587                                     unsigned surf_id)
588 {
589         DRM_DEBUG_KMS("%d:%dx%d+%d+%d\n", index, width, height, x, y);
590         qdev->monitors_config->heads[index].x = x;
591         qdev->monitors_config->heads[index].y = y;
592         qdev->monitors_config->heads[index].width = width;
593         qdev->monitors_config->heads[index].height = height;
594         qdev->monitors_config->heads[index].surface_id = surf_id;
595
596 }
597
598 static int qxl_crtc_mode_set(struct drm_crtc *crtc,
599                                struct drm_display_mode *mode,
600                                struct drm_display_mode *adjusted_mode,
601                                int x, int y,
602                                struct drm_framebuffer *old_fb)
603 {
604         struct drm_device *dev = crtc->dev;
605         struct qxl_device *qdev = dev->dev_private;
606         struct qxl_framebuffer *qfb;
607         struct qxl_bo *bo, *old_bo = NULL;
608         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
609         bool recreate_primary = false;
610         int ret;
611         int surf_id;
612         if (!crtc->primary->fb) {
613                 DRM_DEBUG_KMS("No FB bound\n");
614                 return 0;
615         }
616
617         if (old_fb) {
618                 qfb = to_qxl_framebuffer(old_fb);
619                 old_bo = gem_to_qxl_bo(qfb->obj);
620         }
621         qfb = to_qxl_framebuffer(crtc->primary->fb);
622         bo = gem_to_qxl_bo(qfb->obj);
623         DRM_DEBUG("+%d+%d (%d,%d) => (%d,%d)\n",
624                   x, y,
625                   mode->hdisplay, mode->vdisplay,
626                   adjusted_mode->hdisplay,
627                   adjusted_mode->vdisplay);
628
629         if (bo->is_primary == false)
630                 recreate_primary = true;
631
632         if (bo->surf.stride * bo->surf.height > qdev->vram_size) {
633                 DRM_ERROR("Mode doesn't fit in vram size (vgamem)");
634                 return -EINVAL;
635         }
636
637         ret = qxl_bo_reserve(bo, false);
638         if (ret != 0)
639                 return ret;
640         ret = qxl_bo_pin(bo, bo->type, NULL);
641         if (ret != 0) {
642                 qxl_bo_unreserve(bo);
643                 return -EINVAL;
644         }
645         qxl_bo_unreserve(bo);
646         if (recreate_primary) {
647                 qxl_io_destroy_primary(qdev);
648                 qxl_io_log(qdev,
649                            "recreate primary: %dx%d,%d,%d\n",
650                            bo->surf.width, bo->surf.height,
651                            bo->surf.stride, bo->surf.format);
652                 qxl_io_create_primary(qdev, 0, bo);
653                 bo->is_primary = true;
654         }
655
656         if (bo->is_primary) {
657                 DRM_DEBUG_KMS("setting surface_id to 0 for primary surface %d on crtc %d\n", bo->surface_id, qcrtc->index);
658                 surf_id = 0;
659         } else {
660                 surf_id = bo->surface_id;
661         }
662
663         if (old_bo && old_bo != bo) {
664                 old_bo->is_primary = false;
665                 ret = qxl_bo_reserve(old_bo, false);
666                 qxl_bo_unpin(old_bo);
667                 qxl_bo_unreserve(old_bo);
668         }
669
670         qxl_monitors_config_set(qdev, qcrtc->index, x, y,
671                                 mode->hdisplay,
672                                 mode->vdisplay, surf_id);
673         return 0;
674 }
675
676 static void qxl_crtc_prepare(struct drm_crtc *crtc)
677 {
678         DRM_DEBUG("current: %dx%d+%d+%d (%d).\n",
679                   crtc->mode.hdisplay, crtc->mode.vdisplay,
680                   crtc->x, crtc->y, crtc->enabled);
681 }
682
683 static void qxl_crtc_commit(struct drm_crtc *crtc)
684 {
685         DRM_DEBUG("\n");
686 }
687
688 static void qxl_crtc_disable(struct drm_crtc *crtc)
689 {
690         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
691         struct drm_device *dev = crtc->dev;
692         struct qxl_device *qdev = dev->dev_private;
693         if (crtc->primary->fb) {
694                 struct qxl_framebuffer *qfb = to_qxl_framebuffer(crtc->primary->fb);
695                 struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
696                 int ret;
697                 ret = qxl_bo_reserve(bo, false);
698                 qxl_bo_unpin(bo);
699                 qxl_bo_unreserve(bo);
700                 crtc->primary->fb = NULL;
701         }
702
703         qxl_monitors_config_set(qdev, qcrtc->index, 0, 0, 0, 0, 0);
704
705         qxl_send_monitors_config(qdev);
706 }
707
708 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
709         .dpms = qxl_crtc_dpms,
710         .disable = qxl_crtc_disable,
711         .mode_fixup = qxl_crtc_mode_fixup,
712         .mode_set = qxl_crtc_mode_set,
713         .prepare = qxl_crtc_prepare,
714         .commit = qxl_crtc_commit,
715 };
716
717 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
718 {
719         struct qxl_crtc *qxl_crtc;
720
721         qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
722         if (!qxl_crtc)
723                 return -ENOMEM;
724
725         drm_crtc_init(dev, &qxl_crtc->base, &qxl_crtc_funcs);
726         qxl_crtc->index = crtc_id;
727         drm_mode_crtc_set_gamma_size(&qxl_crtc->base, 256);
728         drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
729         return 0;
730 }
731
732 static void qxl_enc_dpms(struct drm_encoder *encoder, int mode)
733 {
734         DRM_DEBUG("\n");
735 }
736
737 static void qxl_enc_prepare(struct drm_encoder *encoder)
738 {
739         DRM_DEBUG("\n");
740 }
741
742 static void qxl_write_monitors_config_for_encoder(struct qxl_device *qdev,
743                 struct drm_encoder *encoder)
744 {
745         int i;
746         struct qxl_output *output = drm_encoder_to_qxl_output(encoder);
747         struct qxl_head *head;
748         struct drm_display_mode *mode;
749
750         BUG_ON(!encoder);
751         /* TODO: ugly, do better */
752         i = output->index;
753         if (!qdev->monitors_config ||
754             qdev->monitors_config->max_allowed <= i) {
755                 DRM_ERROR(
756                 "head number too large or missing monitors config: %p, %d",
757                 qdev->monitors_config,
758                 qdev->monitors_config ?
759                         qdev->monitors_config->max_allowed : -1);
760                 return;
761         }
762         if (!encoder->crtc) {
763                 DRM_ERROR("missing crtc on encoder %p\n", encoder);
764                 return;
765         }
766         if (i != 0)
767                 DRM_DEBUG("missing for multiple monitors: no head holes\n");
768         head = &qdev->monitors_config->heads[i];
769         head->id = i;
770         if (encoder->crtc->enabled) {
771                 mode = &encoder->crtc->mode;
772                 head->width = mode->hdisplay;
773                 head->height = mode->vdisplay;
774                 head->x = encoder->crtc->x;
775                 head->y = encoder->crtc->y;
776                 if (qdev->monitors_config->count < i + 1)
777                         qdev->monitors_config->count = i + 1;
778         } else {
779                 head->width = 0;
780                 head->height = 0;
781                 head->x = 0;
782                 head->y = 0;
783         }
784         DRM_DEBUG_KMS("setting head %d to +%d+%d %dx%d out of %d\n",
785                       i, head->x, head->y, head->width, head->height, qdev->monitors_config->count);
786         head->flags = 0;
787         /* TODO - somewhere else to call this for multiple monitors
788          * (config_commit?) */
789         qxl_send_monitors_config(qdev);
790 }
791
792 static void qxl_enc_commit(struct drm_encoder *encoder)
793 {
794         struct qxl_device *qdev = encoder->dev->dev_private;
795
796         qxl_write_monitors_config_for_encoder(qdev, encoder);
797         DRM_DEBUG("\n");
798 }
799
800 static void qxl_enc_mode_set(struct drm_encoder *encoder,
801                                 struct drm_display_mode *mode,
802                                 struct drm_display_mode *adjusted_mode)
803 {
804         DRM_DEBUG("\n");
805 }
806
807 static int qxl_conn_get_modes(struct drm_connector *connector)
808 {
809         int ret = 0;
810         struct qxl_device *qdev = connector->dev->dev_private;
811         unsigned pwidth = 1024;
812         unsigned pheight = 768;
813
814         DRM_DEBUG_KMS("monitors_config=%p\n", qdev->monitors_config);
815         /* TODO: what should we do here? only show the configured modes for the
816          * device, or allow the full list, or both? */
817         if (qdev->monitors_config && qdev->monitors_config->count) {
818                 ret = qxl_add_monitors_config_modes(connector, &pwidth, &pheight);
819                 if (ret < 0)
820                         return ret;
821         }
822         ret += qxl_add_common_modes(connector, pwidth, pheight);
823         return ret;
824 }
825
826 static int qxl_conn_mode_valid(struct drm_connector *connector,
827                                struct drm_display_mode *mode)
828 {
829         struct drm_device *ddev = connector->dev;
830         struct qxl_device *qdev = ddev->dev_private;
831         int i;
832
833         /* TODO: is this called for user defined modes? (xrandr --add-mode)
834          * TODO: check that the mode fits in the framebuffer */
835
836         if(qdev->monitors_config_width == mode->hdisplay &&
837            qdev->monitors_config_height == mode->vdisplay)
838                 return MODE_OK;
839
840         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
841                 if (common_modes[i].w == mode->hdisplay && common_modes[i].h == mode->vdisplay)
842                         return MODE_OK;
843         }
844         return MODE_BAD;
845 }
846
847 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
848 {
849         struct qxl_output *qxl_output =
850                 drm_connector_to_qxl_output(connector);
851
852         DRM_DEBUG("\n");
853         return &qxl_output->enc;
854 }
855
856
857 static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
858         .dpms = qxl_enc_dpms,
859         .prepare = qxl_enc_prepare,
860         .mode_set = qxl_enc_mode_set,
861         .commit = qxl_enc_commit,
862 };
863
864 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
865         .get_modes = qxl_conn_get_modes,
866         .mode_valid = qxl_conn_mode_valid,
867         .best_encoder = qxl_best_encoder,
868 };
869
870 static enum drm_connector_status qxl_conn_detect(
871                         struct drm_connector *connector,
872                         bool force)
873 {
874         struct qxl_output *output =
875                 drm_connector_to_qxl_output(connector);
876         struct drm_device *ddev = connector->dev;
877         struct qxl_device *qdev = ddev->dev_private;
878         bool connected = false;
879
880         /* The first monitor is always connected */
881         if (!qdev->client_monitors_config) {
882                 if (output->index == 0)
883                         connected = true;
884         } else
885                 connected = qdev->client_monitors_config->count > output->index &&
886                      qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]);
887
888         DRM_DEBUG("#%d connected: %d\n", output->index, connected);
889         if (!connected)
890                 qxl_monitors_config_set(qdev, output->index, 0, 0, 0, 0, 0);
891
892         return connected ? connector_status_connected
893                          : connector_status_disconnected;
894 }
895
896 static int qxl_conn_set_property(struct drm_connector *connector,
897                                    struct drm_property *property,
898                                    uint64_t value)
899 {
900         DRM_DEBUG("\n");
901         return 0;
902 }
903
904 static void qxl_conn_destroy(struct drm_connector *connector)
905 {
906         struct qxl_output *qxl_output =
907                 drm_connector_to_qxl_output(connector);
908
909         drm_connector_unregister(connector);
910         drm_connector_cleanup(connector);
911         kfree(qxl_output);
912 }
913
914 static const struct drm_connector_funcs qxl_connector_funcs = {
915         .dpms = drm_helper_connector_dpms,
916         .detect = qxl_conn_detect,
917         .fill_modes = drm_helper_probe_single_connector_modes,
918         .set_property = qxl_conn_set_property,
919         .destroy = qxl_conn_destroy,
920 };
921
922 static void qxl_enc_destroy(struct drm_encoder *encoder)
923 {
924         drm_encoder_cleanup(encoder);
925 }
926
927 static const struct drm_encoder_funcs qxl_enc_funcs = {
928         .destroy = qxl_enc_destroy,
929 };
930
931 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
932 {
933         if (qdev->hotplug_mode_update_property)
934                 return 0;
935
936         qdev->hotplug_mode_update_property =
937                 drm_property_create_range(qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
938                                           "hotplug_mode_update", 0, 1);
939
940         return 0;
941 }
942
943 static int qdev_output_init(struct drm_device *dev, int num_output)
944 {
945         struct qxl_device *qdev = dev->dev_private;
946         struct qxl_output *qxl_output;
947         struct drm_connector *connector;
948         struct drm_encoder *encoder;
949
950         qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
951         if (!qxl_output)
952                 return -ENOMEM;
953
954         qxl_output->index = num_output;
955
956         connector = &qxl_output->base;
957         encoder = &qxl_output->enc;
958         drm_connector_init(dev, &qxl_output->base,
959                            &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
960
961         drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
962                          DRM_MODE_ENCODER_VIRTUAL, NULL);
963
964         /* we get HPD via client monitors config */
965         connector->polled = DRM_CONNECTOR_POLL_HPD;
966         encoder->possible_crtcs = 1 << num_output;
967         drm_mode_connector_attach_encoder(&qxl_output->base,
968                                           &qxl_output->enc);
969         drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
970         drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
971
972         drm_object_attach_property(&connector->base,
973                                    qdev->hotplug_mode_update_property, 0);
974         drm_object_attach_property(&connector->base,
975                                    dev->mode_config.suggested_x_property, 0);
976         drm_object_attach_property(&connector->base,
977                                    dev->mode_config.suggested_y_property, 0);
978         drm_connector_register(connector);
979         return 0;
980 }
981
982 static struct drm_framebuffer *
983 qxl_user_framebuffer_create(struct drm_device *dev,
984                             struct drm_file *file_priv,
985                             const struct drm_mode_fb_cmd2 *mode_cmd)
986 {
987         struct drm_gem_object *obj;
988         struct qxl_framebuffer *qxl_fb;
989         int ret;
990
991         obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
992
993         qxl_fb = kzalloc(sizeof(*qxl_fb), GFP_KERNEL);
994         if (qxl_fb == NULL)
995                 return NULL;
996
997         ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj);
998         if (ret) {
999                 kfree(qxl_fb);
1000                 drm_gem_object_unreference_unlocked(obj);
1001                 return NULL;
1002         }
1003
1004         return &qxl_fb->base;
1005 }
1006
1007 static const struct drm_mode_config_funcs qxl_mode_funcs = {
1008         .fb_create = qxl_user_framebuffer_create,
1009 };
1010
1011 int qxl_create_monitors_object(struct qxl_device *qdev)
1012 {
1013         int ret;
1014         struct drm_gem_object *gobj;
1015         int max_allowed = qxl_num_crtc;
1016         int monitors_config_size = sizeof(struct qxl_monitors_config) +
1017                 max_allowed * sizeof(struct qxl_head);
1018
1019         ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
1020                                     QXL_GEM_DOMAIN_VRAM,
1021                                     false, false, NULL, &gobj);
1022         if (ret) {
1023                 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1024                 return -ENOMEM;
1025         }
1026         qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1027
1028         ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
1029         if (ret)
1030                 return ret;
1031
1032         ret = qxl_bo_pin(qdev->monitors_config_bo, QXL_GEM_DOMAIN_VRAM, NULL);
1033         if (ret) {
1034                 qxl_bo_unreserve(qdev->monitors_config_bo);
1035                 return ret;
1036         }
1037
1038         qxl_bo_unreserve(qdev->monitors_config_bo);
1039
1040         qxl_bo_kmap(qdev->monitors_config_bo, NULL);
1041
1042         qdev->monitors_config = qdev->monitors_config_bo->kptr;
1043         qdev->ram_header->monitors_config =
1044                 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
1045
1046         memset(qdev->monitors_config, 0, monitors_config_size);
1047         qdev->monitors_config->max_allowed = max_allowed;
1048         return 0;
1049 }
1050
1051 int qxl_destroy_monitors_object(struct qxl_device *qdev)
1052 {
1053         int ret;
1054
1055         qdev->monitors_config = NULL;
1056         qdev->ram_header->monitors_config = 0;
1057
1058         qxl_bo_kunmap(qdev->monitors_config_bo);
1059         ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
1060         if (ret)
1061                 return ret;
1062
1063         qxl_bo_unpin(qdev->monitors_config_bo);
1064         qxl_bo_unreserve(qdev->monitors_config_bo);
1065
1066         qxl_bo_unref(&qdev->monitors_config_bo);
1067         return 0;
1068 }
1069
1070 int qxl_modeset_init(struct qxl_device *qdev)
1071 {
1072         int i;
1073         int ret;
1074
1075         drm_mode_config_init(qdev->ddev);
1076
1077         ret = qxl_create_monitors_object(qdev);
1078         if (ret)
1079                 return ret;
1080
1081         qdev->ddev->mode_config.funcs = (void *)&qxl_mode_funcs;
1082
1083         /* modes will be validated against the framebuffer size */
1084         qdev->ddev->mode_config.min_width = 320;
1085         qdev->ddev->mode_config.min_height = 200;
1086         qdev->ddev->mode_config.max_width = 8192;
1087         qdev->ddev->mode_config.max_height = 8192;
1088
1089         qdev->ddev->mode_config.fb_base = qdev->vram_base;
1090
1091         drm_mode_create_suggested_offset_properties(qdev->ddev);
1092         qxl_mode_create_hotplug_mode_update_property(qdev);
1093
1094         for (i = 0 ; i < qxl_num_crtc; ++i) {
1095                 qdev_crtc_init(qdev->ddev, i);
1096                 qdev_output_init(qdev->ddev, i);
1097         }
1098
1099         qdev->mode_info.mode_config_initialized = true;
1100
1101         /* primary surface must be created by this point, to allow
1102          * issuing command queue commands and having them read by
1103          * spice server. */
1104         qxl_fbdev_init(qdev);
1105         return 0;
1106 }
1107
1108 void qxl_modeset_fini(struct qxl_device *qdev)
1109 {
1110         qxl_fbdev_fini(qdev);
1111
1112         qxl_destroy_monitors_object(qdev);
1113         if (qdev->mode_info.mode_config_initialized) {
1114                 drm_mode_config_cleanup(qdev->ddev);
1115                 qdev->mode_info.mode_config_initialized = false;
1116         }
1117 }