Merge remote-tracking branch 'origin/master' into drm-misc-fixes
[muen/linux.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 #include <linux/crc32.h>
27 #include <drm/drm_crtc_helper.h>
28 #include <drm/drm_plane_helper.h>
29 #include <drm/drm_atomic_helper.h>
30 #include <drm/drm_atomic.h>
31
32 #include "qxl_drv.h"
33 #include "qxl_object.h"
34
35 static bool qxl_head_enabled(struct qxl_head *head)
36 {
37         return head->width && head->height;
38 }
39
40 static void qxl_alloc_client_monitors_config(struct qxl_device *qdev, unsigned count)
41 {
42         if (qdev->client_monitors_config &&
43             count > qdev->client_monitors_config->count) {
44                 kfree(qdev->client_monitors_config);
45                 qdev->client_monitors_config = NULL;
46         }
47         if (!qdev->client_monitors_config) {
48                 qdev->client_monitors_config = kzalloc(
49                                 sizeof(struct qxl_monitors_config) +
50                                 sizeof(struct qxl_head) * count, GFP_KERNEL);
51                 if (!qdev->client_monitors_config) {
52                         qxl_io_log(qdev,
53                                    "%s: allocation failure for %u heads\n",
54                                    __func__, count);
55                         return;
56                 }
57         }
58         qdev->client_monitors_config->count = count;
59 }
60
61 enum {
62         MONITORS_CONFIG_MODIFIED,
63         MONITORS_CONFIG_UNCHANGED,
64         MONITORS_CONFIG_BAD_CRC,
65 };
66
67 static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev)
68 {
69         int i;
70         int num_monitors;
71         uint32_t crc;
72         int status = MONITORS_CONFIG_UNCHANGED;
73
74         num_monitors = qdev->rom->client_monitors_config.count;
75         crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config,
76                   sizeof(qdev->rom->client_monitors_config));
77         if (crc != qdev->rom->client_monitors_config_crc) {
78                 qxl_io_log(qdev, "crc mismatch: have %X (%zd) != %X\n", crc,
79                            sizeof(qdev->rom->client_monitors_config),
80                            qdev->rom->client_monitors_config_crc);
81                 return MONITORS_CONFIG_BAD_CRC;
82         }
83         if (!num_monitors) {
84                 DRM_DEBUG_KMS("no client monitors configured\n");
85                 return status;
86         }
87         if (num_monitors > qdev->monitors_config->max_allowed) {
88                 DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n",
89                               qdev->monitors_config->max_allowed, num_monitors);
90                 num_monitors = qdev->monitors_config->max_allowed;
91         } else {
92                 num_monitors = qdev->rom->client_monitors_config.count;
93         }
94         if (qdev->client_monitors_config
95               && (num_monitors != qdev->client_monitors_config->count)) {
96                 status = MONITORS_CONFIG_MODIFIED;
97         }
98         qxl_alloc_client_monitors_config(qdev, num_monitors);
99         /* we copy max from the client but it isn't used */
100         qdev->client_monitors_config->max_allowed =
101                                 qdev->monitors_config->max_allowed;
102         for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) {
103                 struct qxl_urect *c_rect =
104                         &qdev->rom->client_monitors_config.heads[i];
105                 struct qxl_head *client_head =
106                         &qdev->client_monitors_config->heads[i];
107                 if (client_head->x != c_rect->left) {
108                         client_head->x = c_rect->left;
109                         status = MONITORS_CONFIG_MODIFIED;
110                 }
111                 if (client_head->y != c_rect->top) {
112                         client_head->y = c_rect->top;
113                         status = MONITORS_CONFIG_MODIFIED;
114                 }
115                 if (client_head->width != c_rect->right - c_rect->left) {
116                         client_head->width = c_rect->right - c_rect->left;
117                         status = MONITORS_CONFIG_MODIFIED;
118                 }
119                 if (client_head->height != c_rect->bottom - c_rect->top) {
120                         client_head->height = c_rect->bottom - c_rect->top;
121                         status = MONITORS_CONFIG_MODIFIED;
122                 }
123                 if (client_head->surface_id != 0) {
124                         client_head->surface_id = 0;
125                         status = MONITORS_CONFIG_MODIFIED;
126                 }
127                 if (client_head->id != i) {
128                         client_head->id = i;
129                         status = MONITORS_CONFIG_MODIFIED;
130                 }
131                 if (client_head->flags != 0) {
132                         client_head->flags = 0;
133                         status = MONITORS_CONFIG_MODIFIED;
134                 }
135                 DRM_DEBUG_KMS("read %dx%d+%d+%d\n", client_head->width, client_head->height,
136                           client_head->x, client_head->y);
137         }
138
139         return status;
140 }
141
142 static void qxl_update_offset_props(struct qxl_device *qdev)
143 {
144         struct drm_device *dev = &qdev->ddev;
145         struct drm_connector *connector;
146         struct qxl_output *output;
147         struct qxl_head *head;
148
149         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
150                 output = drm_connector_to_qxl_output(connector);
151
152                 head = &qdev->client_monitors_config->heads[output->index];
153
154                 drm_object_property_set_value(&connector->base,
155                         dev->mode_config.suggested_x_property, head->x);
156                 drm_object_property_set_value(&connector->base,
157                         dev->mode_config.suggested_y_property, head->y);
158         }
159 }
160
161 void qxl_display_read_client_monitors_config(struct qxl_device *qdev)
162 {
163         struct drm_device *dev = &qdev->ddev;
164         int status, retries;
165
166         for (retries = 0; retries < 10; retries++) {
167                 status = qxl_display_copy_rom_client_monitors_config(qdev);
168                 if (status != MONITORS_CONFIG_BAD_CRC)
169                         break;
170                 udelay(5);
171         }
172         if (status == MONITORS_CONFIG_BAD_CRC) {
173                 qxl_io_log(qdev, "config: bad crc\n");
174                 DRM_DEBUG_KMS("ignoring client monitors config: bad crc");
175                 return;
176         }
177         if (status == MONITORS_CONFIG_UNCHANGED) {
178                 qxl_io_log(qdev, "config: unchanged\n");
179                 DRM_DEBUG_KMS("ignoring client monitors config: unchanged");
180                 return;
181         }
182
183         drm_modeset_lock_all(dev);
184         qxl_update_offset_props(qdev);
185         drm_modeset_unlock_all(dev);
186         if (!drm_helper_hpd_irq_event(dev)) {
187                 /* notify that the monitor configuration changed, to
188                    adjust at the arbitrary resolution */
189                 drm_kms_helper_hotplug_event(dev);
190         }
191 }
192
193 static int qxl_add_monitors_config_modes(struct drm_connector *connector,
194                                          unsigned *pwidth,
195                                          unsigned *pheight)
196 {
197         struct drm_device *dev = connector->dev;
198         struct qxl_device *qdev = dev->dev_private;
199         struct qxl_output *output = drm_connector_to_qxl_output(connector);
200         int h = output->index;
201         struct drm_display_mode *mode = NULL;
202         struct qxl_head *head;
203
204         if (!qdev->monitors_config)
205                 return 0;
206         if (h >= qdev->monitors_config->max_allowed)
207                 return 0;
208         if (!qdev->client_monitors_config)
209                 return 0;
210         if (h >= qdev->client_monitors_config->count)
211                 return 0;
212
213         head = &qdev->client_monitors_config->heads[h];
214         DRM_DEBUG_KMS("head %d is %dx%d\n", h, head->width, head->height);
215
216         mode = drm_cvt_mode(dev, head->width, head->height, 60, false, false,
217                             false);
218         mode->type |= DRM_MODE_TYPE_PREFERRED;
219         mode->hdisplay = head->width;
220         mode->vdisplay = head->height;
221         drm_mode_set_name(mode);
222         *pwidth = head->width;
223         *pheight = head->height;
224         drm_mode_probed_add(connector, mode);
225         /* remember the last custom size for mode validation */
226         qdev->monitors_config_width = mode->hdisplay;
227         qdev->monitors_config_height = mode->vdisplay;
228         return 1;
229 }
230
231 static struct mode_size {
232         int w;
233         int h;
234 } common_modes[] = {
235         { 640,  480},
236         { 720,  480},
237         { 800,  600},
238         { 848,  480},
239         {1024,  768},
240         {1152,  768},
241         {1280,  720},
242         {1280,  800},
243         {1280,  854},
244         {1280,  960},
245         {1280, 1024},
246         {1440,  900},
247         {1400, 1050},
248         {1680, 1050},
249         {1600, 1200},
250         {1920, 1080},
251         {1920, 1200}
252 };
253
254 static int qxl_add_common_modes(struct drm_connector *connector,
255                                 unsigned pwidth,
256                                 unsigned pheight)
257 {
258         struct drm_device *dev = connector->dev;
259         struct drm_display_mode *mode = NULL;
260         int i;
261         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
262                 mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h,
263                                     60, false, false, false);
264                 if (common_modes[i].w == pwidth && common_modes[i].h == pheight)
265                         mode->type |= DRM_MODE_TYPE_PREFERRED;
266                 drm_mode_probed_add(connector, mode);
267         }
268         return i - 1;
269 }
270
271 static void qxl_crtc_atomic_flush(struct drm_crtc *crtc,
272                                   struct drm_crtc_state *old_crtc_state)
273 {
274         struct drm_device *dev = crtc->dev;
275         struct drm_pending_vblank_event *event;
276         unsigned long flags;
277
278         if (crtc->state && crtc->state->event) {
279                 event = crtc->state->event;
280                 crtc->state->event = NULL;
281
282                 spin_lock_irqsave(&dev->event_lock, flags);
283                 drm_crtc_send_vblank_event(crtc, event);
284                 spin_unlock_irqrestore(&dev->event_lock, flags);
285         }
286 }
287
288 static void qxl_crtc_destroy(struct drm_crtc *crtc)
289 {
290         struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
291
292         drm_crtc_cleanup(crtc);
293         kfree(qxl_crtc);
294 }
295
296 static const struct drm_crtc_funcs qxl_crtc_funcs = {
297         .set_config = drm_atomic_helper_set_config,
298         .destroy = qxl_crtc_destroy,
299         .page_flip = drm_atomic_helper_page_flip,
300         .reset = drm_atomic_helper_crtc_reset,
301         .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
302         .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
303 };
304
305 void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
306 {
307         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
308
309         drm_gem_object_unreference_unlocked(qxl_fb->obj);
310         drm_framebuffer_cleanup(fb);
311         kfree(qxl_fb);
312 }
313
314 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
315                                          struct drm_file *file_priv,
316                                          unsigned flags, unsigned color,
317                                          struct drm_clip_rect *clips,
318                                          unsigned num_clips)
319 {
320         /* TODO: vmwgfx where this was cribbed from had locking. Why? */
321         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
322         struct qxl_device *qdev = qxl_fb->base.dev->dev_private;
323         struct drm_clip_rect norect;
324         struct qxl_bo *qobj;
325         int inc = 1;
326
327         drm_modeset_lock_all(fb->dev);
328
329         qobj = gem_to_qxl_bo(qxl_fb->obj);
330         /* if we aren't primary surface ignore this */
331         if (!qobj->is_primary) {
332                 drm_modeset_unlock_all(fb->dev);
333                 return 0;
334         }
335
336         if (!num_clips) {
337                 num_clips = 1;
338                 clips = &norect;
339                 norect.x1 = norect.y1 = 0;
340                 norect.x2 = fb->width;
341                 norect.y2 = fb->height;
342         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
343                 num_clips /= 2;
344                 inc = 2; /* skip source rects */
345         }
346
347         qxl_draw_dirty_fb(qdev, qxl_fb, qobj, flags, color,
348                           clips, num_clips, inc);
349
350         drm_modeset_unlock_all(fb->dev);
351
352         return 0;
353 }
354
355 static const struct drm_framebuffer_funcs qxl_fb_funcs = {
356         .destroy = qxl_user_framebuffer_destroy,
357         .dirty = qxl_framebuffer_surface_dirty,
358 /*      TODO?
359  *      .create_handle = qxl_user_framebuffer_create_handle, */
360 };
361
362 int
363 qxl_framebuffer_init(struct drm_device *dev,
364                      struct qxl_framebuffer *qfb,
365                      const struct drm_mode_fb_cmd2 *mode_cmd,
366                      struct drm_gem_object *obj,
367                      const struct drm_framebuffer_funcs *funcs)
368 {
369         int ret;
370
371         qfb->obj = obj;
372         drm_helper_mode_fill_fb_struct(dev, &qfb->base, mode_cmd);
373         ret = drm_framebuffer_init(dev, &qfb->base, funcs);
374         if (ret) {
375                 qfb->obj = NULL;
376                 return ret;
377         }
378         return 0;
379 }
380
381 static bool qxl_crtc_mode_fixup(struct drm_crtc *crtc,
382                                   const struct drm_display_mode *mode,
383                                   struct drm_display_mode *adjusted_mode)
384 {
385         struct drm_device *dev = crtc->dev;
386         struct qxl_device *qdev = dev->dev_private;
387
388         qxl_io_log(qdev, "%s: (%d,%d) => (%d,%d)\n",
389                    __func__,
390                    mode->hdisplay, mode->vdisplay,
391                    adjusted_mode->hdisplay,
392                    adjusted_mode->vdisplay);
393         return true;
394 }
395
396 static void
397 qxl_send_monitors_config(struct qxl_device *qdev)
398 {
399         int i;
400
401         BUG_ON(!qdev->ram_header->monitors_config);
402
403         if (qdev->monitors_config->count == 0) {
404                 qxl_io_log(qdev, "%s: 0 monitors??\n", __func__);
405                 return;
406         }
407         for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
408                 struct qxl_head *head = &qdev->monitors_config->heads[i];
409
410                 if (head->y > 8192 || head->x > 8192 ||
411                     head->width > 8192 || head->height > 8192) {
412                         DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
413                                   i, head->width, head->height,
414                                   head->x, head->y);
415                         return;
416                 }
417         }
418         qxl_io_monitors_config(qdev);
419 }
420
421 static void qxl_monitors_config_set(struct qxl_device *qdev,
422                                     int index,
423                                     unsigned x, unsigned y,
424                                     unsigned width, unsigned height,
425                                     unsigned surf_id)
426 {
427         DRM_DEBUG_KMS("%d:%dx%d+%d+%d\n", index, width, height, x, y);
428         qdev->monitors_config->heads[index].x = x;
429         qdev->monitors_config->heads[index].y = y;
430         qdev->monitors_config->heads[index].width = width;
431         qdev->monitors_config->heads[index].height = height;
432         qdev->monitors_config->heads[index].surface_id = surf_id;
433
434 }
435
436 static void qxl_mode_set_nofb(struct drm_crtc *crtc)
437 {
438         struct qxl_device *qdev = crtc->dev->dev_private;
439         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
440         struct drm_display_mode *mode = &crtc->mode;
441
442         DRM_DEBUG("Mode set (%d,%d)\n",
443                   mode->hdisplay, mode->vdisplay);
444
445         qxl_monitors_config_set(qdev, qcrtc->index, 0, 0,
446                                 mode->hdisplay, mode->vdisplay, 0);
447
448 }
449
450 static void qxl_crtc_atomic_enable(struct drm_crtc *crtc,
451                                    struct drm_crtc_state *old_state)
452 {
453         DRM_DEBUG("\n");
454 }
455
456 static void qxl_crtc_atomic_disable(struct drm_crtc *crtc,
457                                     struct drm_crtc_state *old_state)
458 {
459         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
460         struct qxl_device *qdev = crtc->dev->dev_private;
461
462         qxl_monitors_config_set(qdev, qcrtc->index, 0, 0, 0, 0, 0);
463
464         qxl_send_monitors_config(qdev);
465 }
466
467 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
468         .mode_fixup = qxl_crtc_mode_fixup,
469         .mode_set_nofb = qxl_mode_set_nofb,
470         .atomic_flush = qxl_crtc_atomic_flush,
471         .atomic_enable = qxl_crtc_atomic_enable,
472         .atomic_disable = qxl_crtc_atomic_disable,
473 };
474
475 static int qxl_primary_atomic_check(struct drm_plane *plane,
476                                     struct drm_plane_state *state)
477 {
478         struct qxl_device *qdev = plane->dev->dev_private;
479         struct qxl_framebuffer *qfb;
480         struct qxl_bo *bo;
481
482         if (!state->crtc || !state->fb)
483                 return 0;
484
485         qfb = to_qxl_framebuffer(state->fb);
486         bo = gem_to_qxl_bo(qfb->obj);
487
488         if (bo->surf.stride * bo->surf.height > qdev->vram_size) {
489                 DRM_ERROR("Mode doesn't fit in vram size (vgamem)");
490                 return -EINVAL;
491         }
492
493         return 0;
494 }
495
496 static void qxl_primary_atomic_update(struct drm_plane *plane,
497                                       struct drm_plane_state *old_state)
498 {
499         struct qxl_device *qdev = plane->dev->dev_private;
500         struct qxl_framebuffer *qfb =
501                 to_qxl_framebuffer(plane->state->fb);
502         struct qxl_framebuffer *qfb_old;
503         struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
504         struct qxl_bo *bo_old;
505         struct drm_clip_rect norect = {
506             .x1 = 0,
507             .y1 = 0,
508             .x2 = qfb->base.width,
509             .y2 = qfb->base.height
510         };
511
512         if (old_state->fb) {
513                 qfb_old = to_qxl_framebuffer(old_state->fb);
514                 bo_old = gem_to_qxl_bo(qfb_old->obj);
515         } else {
516                 bo_old = NULL;
517         }
518
519         if (bo == bo_old)
520                 return;
521
522         if (bo_old && bo_old->is_primary) {
523                 qxl_io_destroy_primary(qdev);
524                 bo_old->is_primary = false;
525         }
526
527         if (!bo->is_primary) {
528                 qxl_io_create_primary(qdev, 0, bo);
529                 bo->is_primary = true;
530         }
531         qxl_draw_dirty_fb(qdev, qfb, bo, 0, 0, &norect, 1, 1);
532 }
533
534 static void qxl_primary_atomic_disable(struct drm_plane *plane,
535                                        struct drm_plane_state *old_state)
536 {
537         struct qxl_device *qdev = plane->dev->dev_private;
538
539         if (old_state->fb) {
540                 struct qxl_framebuffer *qfb =
541                         to_qxl_framebuffer(old_state->fb);
542                 struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
543
544                 if (bo->is_primary) {
545                         qxl_io_destroy_primary(qdev);
546                         bo->is_primary = false;
547                 }
548         }
549 }
550
551 static int qxl_plane_atomic_check(struct drm_plane *plane,
552                                   struct drm_plane_state *state)
553 {
554         return 0;
555 }
556
557 static void qxl_cursor_atomic_update(struct drm_plane *plane,
558                                      struct drm_plane_state *old_state)
559 {
560         struct drm_device *dev = plane->dev;
561         struct qxl_device *qdev = dev->dev_private;
562         struct drm_framebuffer *fb = plane->state->fb;
563         struct qxl_release *release;
564         struct qxl_cursor_cmd *cmd;
565         struct qxl_cursor *cursor;
566         struct drm_gem_object *obj;
567         struct qxl_bo *cursor_bo, *user_bo = NULL;
568         int ret;
569         void *user_ptr;
570         int size = 64*64*4;
571
572         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
573                                          QXL_RELEASE_CURSOR_CMD,
574                                          &release, NULL);
575         if (ret)
576                 return;
577
578         if (fb != old_state->fb) {
579                 obj = to_qxl_framebuffer(fb)->obj;
580                 user_bo = gem_to_qxl_bo(obj);
581
582                 /* pinning is done in the prepare/cleanup framevbuffer */
583                 ret = qxl_bo_kmap(user_bo, &user_ptr);
584                 if (ret)
585                         goto out_free_release;
586
587                 ret = qxl_alloc_bo_reserved(qdev, release,
588                                             sizeof(struct qxl_cursor) + size,
589                                             &cursor_bo);
590                 if (ret)
591                         goto out_kunmap;
592
593                 ret = qxl_release_reserve_list(release, true);
594                 if (ret)
595                         goto out_free_bo;
596
597                 ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
598                 if (ret)
599                         goto out_backoff;
600
601                 cursor->header.unique = 0;
602                 cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
603                 cursor->header.width = 64;
604                 cursor->header.height = 64;
605                 cursor->header.hot_spot_x = fb->hot_x;
606                 cursor->header.hot_spot_y = fb->hot_y;
607                 cursor->data_size = size;
608                 cursor->chunk.next_chunk = 0;
609                 cursor->chunk.prev_chunk = 0;
610                 cursor->chunk.data_size = size;
611                 memcpy(cursor->chunk.data, user_ptr, size);
612                 qxl_bo_kunmap(cursor_bo);
613                 qxl_bo_kunmap(user_bo);
614
615                 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release);
616                 cmd->u.set.visible = 1;
617                 cmd->u.set.shape = qxl_bo_physical_address(qdev,
618                                                            cursor_bo, 0);
619                 cmd->type = QXL_CURSOR_SET;
620         } else {
621
622                 ret = qxl_release_reserve_list(release, true);
623                 if (ret)
624                         goto out_free_release;
625
626                 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release);
627                 cmd->type = QXL_CURSOR_MOVE;
628         }
629
630         cmd->u.position.x = plane->state->crtc_x + fb->hot_x;
631         cmd->u.position.y = plane->state->crtc_y + fb->hot_y;
632
633         qxl_release_unmap(qdev, release, &cmd->release_info);
634         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
635         qxl_release_fence_buffer_objects(release);
636
637         return;
638
639 out_backoff:
640         qxl_release_backoff_reserve_list(release);
641 out_free_bo:
642         qxl_bo_unref(&cursor_bo);
643 out_kunmap:
644         qxl_bo_kunmap(user_bo);
645 out_free_release:
646         qxl_release_free(qdev, release);
647         return;
648
649 }
650
651 static void qxl_cursor_atomic_disable(struct drm_plane *plane,
652                                       struct drm_plane_state *old_state)
653 {
654         struct qxl_device *qdev = plane->dev->dev_private;
655         struct qxl_release *release;
656         struct qxl_cursor_cmd *cmd;
657         int ret;
658
659         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
660                                          QXL_RELEASE_CURSOR_CMD,
661                                          &release, NULL);
662         if (ret)
663                 return;
664
665         ret = qxl_release_reserve_list(release, true);
666         if (ret) {
667                 qxl_release_free(qdev, release);
668                 return;
669         }
670
671         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
672         cmd->type = QXL_CURSOR_HIDE;
673         qxl_release_unmap(qdev, release, &cmd->release_info);
674
675         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
676         qxl_release_fence_buffer_objects(release);
677 }
678
679 static int qxl_plane_prepare_fb(struct drm_plane *plane,
680                                 struct drm_plane_state *new_state)
681 {
682         struct drm_gem_object *obj;
683         struct qxl_bo *user_bo;
684         int ret;
685
686         if (!new_state->fb)
687                 return 0;
688
689         obj = to_qxl_framebuffer(new_state->fb)->obj;
690         user_bo = gem_to_qxl_bo(obj);
691
692         ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL);
693         if (ret)
694                 return ret;
695
696         return 0;
697 }
698
699 static void qxl_plane_cleanup_fb(struct drm_plane *plane,
700                                  struct drm_plane_state *old_state)
701 {
702         struct drm_gem_object *obj;
703         struct qxl_bo *user_bo;
704
705         if (!plane->state->fb) {
706                 /* we never executed prepare_fb, so there's nothing to
707                  * unpin.
708                  */
709                 return;
710         }
711
712         obj = to_qxl_framebuffer(plane->state->fb)->obj;
713         user_bo = gem_to_qxl_bo(obj);
714         qxl_bo_unpin(user_bo);
715 }
716
717 static const uint32_t qxl_cursor_plane_formats[] = {
718         DRM_FORMAT_ARGB8888,
719 };
720
721 static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = {
722         .atomic_check = qxl_plane_atomic_check,
723         .atomic_update = qxl_cursor_atomic_update,
724         .atomic_disable = qxl_cursor_atomic_disable,
725         .prepare_fb = qxl_plane_prepare_fb,
726         .cleanup_fb = qxl_plane_cleanup_fb,
727 };
728
729 static const struct drm_plane_funcs qxl_cursor_plane_funcs = {
730         .update_plane   = drm_atomic_helper_update_plane,
731         .disable_plane  = drm_atomic_helper_disable_plane,
732         .destroy        = drm_primary_helper_destroy,
733         .reset          = drm_atomic_helper_plane_reset,
734         .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
735         .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
736 };
737
738 static const uint32_t qxl_primary_plane_formats[] = {
739         DRM_FORMAT_XRGB8888,
740         DRM_FORMAT_ARGB8888,
741 };
742
743 static const struct drm_plane_helper_funcs primary_helper_funcs = {
744         .atomic_check = qxl_primary_atomic_check,
745         .atomic_update = qxl_primary_atomic_update,
746         .atomic_disable = qxl_primary_atomic_disable,
747         .prepare_fb = qxl_plane_prepare_fb,
748         .cleanup_fb = qxl_plane_cleanup_fb,
749 };
750
751 static const struct drm_plane_funcs qxl_primary_plane_funcs = {
752         .update_plane   = drm_atomic_helper_update_plane,
753         .disable_plane  = drm_atomic_helper_disable_plane,
754         .destroy        = drm_primary_helper_destroy,
755         .reset          = drm_atomic_helper_plane_reset,
756         .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
757         .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
758 };
759
760 static struct drm_plane *qxl_create_plane(struct qxl_device *qdev,
761                                           unsigned int possible_crtcs,
762                                           enum drm_plane_type type)
763 {
764         const struct drm_plane_helper_funcs *helper_funcs = NULL;
765         struct drm_plane *plane;
766         const struct drm_plane_funcs *funcs;
767         const uint32_t *formats;
768         int num_formats;
769         int err;
770
771         if (type == DRM_PLANE_TYPE_PRIMARY) {
772                 funcs = &qxl_primary_plane_funcs;
773                 formats = qxl_primary_plane_formats;
774                 num_formats = ARRAY_SIZE(qxl_primary_plane_formats);
775                 helper_funcs = &primary_helper_funcs;
776         } else if (type == DRM_PLANE_TYPE_CURSOR) {
777                 funcs = &qxl_cursor_plane_funcs;
778                 formats = qxl_cursor_plane_formats;
779                 helper_funcs = &qxl_cursor_helper_funcs;
780                 num_formats = ARRAY_SIZE(qxl_cursor_plane_formats);
781         } else {
782                 return ERR_PTR(-EINVAL);
783         }
784
785         plane = kzalloc(sizeof(*plane), GFP_KERNEL);
786         if (!plane)
787                 return ERR_PTR(-ENOMEM);
788
789         err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs,
790                                        funcs, formats, num_formats,
791                                        NULL, type, NULL);
792         if (err)
793                 goto free_plane;
794
795         drm_plane_helper_add(plane, helper_funcs);
796
797         return plane;
798
799 free_plane:
800         kfree(plane);
801         return ERR_PTR(-EINVAL);
802 }
803
804 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
805 {
806         struct qxl_crtc *qxl_crtc;
807         struct drm_plane *primary, *cursor;
808         struct qxl_device *qdev = dev->dev_private;
809         int r;
810
811         qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
812         if (!qxl_crtc)
813                 return -ENOMEM;
814
815         primary = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_PRIMARY);
816         if (IS_ERR(primary)) {
817                 r = -ENOMEM;
818                 goto free_mem;
819         }
820
821         cursor = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_CURSOR);
822         if (IS_ERR(cursor)) {
823                 r = -ENOMEM;
824                 goto clean_primary;
825         }
826
827         r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, cursor,
828                                       &qxl_crtc_funcs, NULL);
829         if (r)
830                 goto clean_cursor;
831
832         qxl_crtc->index = crtc_id;
833         drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
834         return 0;
835
836 clean_cursor:
837         drm_plane_cleanup(cursor);
838         kfree(cursor);
839 clean_primary:
840         drm_plane_cleanup(primary);
841         kfree(primary);
842 free_mem:
843         kfree(qxl_crtc);
844         return r;
845 }
846
847 static void qxl_enc_dpms(struct drm_encoder *encoder, int mode)
848 {
849         DRM_DEBUG("\n");
850 }
851
852 static void qxl_enc_prepare(struct drm_encoder *encoder)
853 {
854         DRM_DEBUG("\n");
855 }
856
857 static void qxl_write_monitors_config_for_encoder(struct qxl_device *qdev,
858                 struct drm_encoder *encoder)
859 {
860         int i;
861         struct qxl_output *output = drm_encoder_to_qxl_output(encoder);
862         struct qxl_head *head;
863         struct drm_display_mode *mode;
864
865         BUG_ON(!encoder);
866         /* TODO: ugly, do better */
867         i = output->index;
868         if (!qdev->monitors_config ||
869             qdev->monitors_config->max_allowed <= i) {
870                 DRM_ERROR(
871                 "head number too large or missing monitors config: %p, %d",
872                 qdev->monitors_config,
873                 qdev->monitors_config ?
874                         qdev->monitors_config->max_allowed : -1);
875                 return;
876         }
877         if (!encoder->crtc) {
878                 DRM_ERROR("missing crtc on encoder %p\n", encoder);
879                 return;
880         }
881         if (i != 0)
882                 DRM_DEBUG("missing for multiple monitors: no head holes\n");
883         head = &qdev->monitors_config->heads[i];
884         head->id = i;
885         if (encoder->crtc->enabled) {
886                 mode = &encoder->crtc->mode;
887                 head->width = mode->hdisplay;
888                 head->height = mode->vdisplay;
889                 head->x = encoder->crtc->x;
890                 head->y = encoder->crtc->y;
891                 if (qdev->monitors_config->count < i + 1)
892                         qdev->monitors_config->count = i + 1;
893         } else {
894                 head->width = 0;
895                 head->height = 0;
896                 head->x = 0;
897                 head->y = 0;
898         }
899         DRM_DEBUG_KMS("setting head %d to +%d+%d %dx%d out of %d\n",
900                       i, head->x, head->y, head->width, head->height, qdev->monitors_config->count);
901         head->flags = 0;
902         /* TODO - somewhere else to call this for multiple monitors
903          * (config_commit?) */
904         qxl_send_monitors_config(qdev);
905 }
906
907 static void qxl_enc_commit(struct drm_encoder *encoder)
908 {
909         struct qxl_device *qdev = encoder->dev->dev_private;
910
911         qxl_write_monitors_config_for_encoder(qdev, encoder);
912         DRM_DEBUG("\n");
913 }
914
915 static void qxl_enc_mode_set(struct drm_encoder *encoder,
916                                 struct drm_display_mode *mode,
917                                 struct drm_display_mode *adjusted_mode)
918 {
919         DRM_DEBUG("\n");
920 }
921
922 static int qxl_conn_get_modes(struct drm_connector *connector)
923 {
924         unsigned pwidth = 1024;
925         unsigned pheight = 768;
926         int ret = 0;
927
928         ret = qxl_add_monitors_config_modes(connector, &pwidth, &pheight);
929         if (ret < 0)
930                 return ret;
931         ret += qxl_add_common_modes(connector, pwidth, pheight);
932         return ret;
933 }
934
935 static int qxl_conn_mode_valid(struct drm_connector *connector,
936                                struct drm_display_mode *mode)
937 {
938         struct drm_device *ddev = connector->dev;
939         struct qxl_device *qdev = ddev->dev_private;
940         int i;
941
942         /* TODO: is this called for user defined modes? (xrandr --add-mode)
943          * TODO: check that the mode fits in the framebuffer */
944
945         if(qdev->monitors_config_width == mode->hdisplay &&
946            qdev->monitors_config_height == mode->vdisplay)
947                 return MODE_OK;
948
949         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
950                 if (common_modes[i].w == mode->hdisplay && common_modes[i].h == mode->vdisplay)
951                         return MODE_OK;
952         }
953         return MODE_BAD;
954 }
955
956 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
957 {
958         struct qxl_output *qxl_output =
959                 drm_connector_to_qxl_output(connector);
960
961         DRM_DEBUG("\n");
962         return &qxl_output->enc;
963 }
964
965
966 static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
967         .dpms = qxl_enc_dpms,
968         .prepare = qxl_enc_prepare,
969         .mode_set = qxl_enc_mode_set,
970         .commit = qxl_enc_commit,
971 };
972
973 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
974         .get_modes = qxl_conn_get_modes,
975         .mode_valid = qxl_conn_mode_valid,
976         .best_encoder = qxl_best_encoder,
977 };
978
979 static enum drm_connector_status qxl_conn_detect(
980                         struct drm_connector *connector,
981                         bool force)
982 {
983         struct qxl_output *output =
984                 drm_connector_to_qxl_output(connector);
985         struct drm_device *ddev = connector->dev;
986         struct qxl_device *qdev = ddev->dev_private;
987         bool connected = false;
988
989         /* The first monitor is always connected */
990         if (!qdev->client_monitors_config) {
991                 if (output->index == 0)
992                         connected = true;
993         } else
994                 connected = qdev->client_monitors_config->count > output->index &&
995                      qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]);
996
997         DRM_DEBUG("#%d connected: %d\n", output->index, connected);
998         if (!connected)
999                 qxl_monitors_config_set(qdev, output->index, 0, 0, 0, 0, 0);
1000
1001         return connected ? connector_status_connected
1002                          : connector_status_disconnected;
1003 }
1004
1005 static int qxl_conn_set_property(struct drm_connector *connector,
1006                                    struct drm_property *property,
1007                                    uint64_t value)
1008 {
1009         DRM_DEBUG("\n");
1010         return 0;
1011 }
1012
1013 static void qxl_conn_destroy(struct drm_connector *connector)
1014 {
1015         struct qxl_output *qxl_output =
1016                 drm_connector_to_qxl_output(connector);
1017
1018         drm_connector_unregister(connector);
1019         drm_connector_cleanup(connector);
1020         kfree(qxl_output);
1021 }
1022
1023 static const struct drm_connector_funcs qxl_connector_funcs = {
1024         .dpms = drm_helper_connector_dpms,
1025         .detect = qxl_conn_detect,
1026         .fill_modes = drm_helper_probe_single_connector_modes,
1027         .set_property = qxl_conn_set_property,
1028         .destroy = qxl_conn_destroy,
1029         .reset = drm_atomic_helper_connector_reset,
1030         .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1031         .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1032 };
1033
1034 static void qxl_enc_destroy(struct drm_encoder *encoder)
1035 {
1036         drm_encoder_cleanup(encoder);
1037 }
1038
1039 static const struct drm_encoder_funcs qxl_enc_funcs = {
1040         .destroy = qxl_enc_destroy,
1041 };
1042
1043 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
1044 {
1045         if (qdev->hotplug_mode_update_property)
1046                 return 0;
1047
1048         qdev->hotplug_mode_update_property =
1049                 drm_property_create_range(&qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
1050                                           "hotplug_mode_update", 0, 1);
1051
1052         return 0;
1053 }
1054
1055 static int qdev_output_init(struct drm_device *dev, int num_output)
1056 {
1057         struct qxl_device *qdev = dev->dev_private;
1058         struct qxl_output *qxl_output;
1059         struct drm_connector *connector;
1060         struct drm_encoder *encoder;
1061
1062         qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
1063         if (!qxl_output)
1064                 return -ENOMEM;
1065
1066         qxl_output->index = num_output;
1067
1068         connector = &qxl_output->base;
1069         encoder = &qxl_output->enc;
1070         drm_connector_init(dev, &qxl_output->base,
1071                            &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
1072
1073         drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
1074                          DRM_MODE_ENCODER_VIRTUAL, NULL);
1075
1076         /* we get HPD via client monitors config */
1077         connector->polled = DRM_CONNECTOR_POLL_HPD;
1078         encoder->possible_crtcs = 1 << num_output;
1079         drm_mode_connector_attach_encoder(&qxl_output->base,
1080                                           &qxl_output->enc);
1081         drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
1082         drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
1083
1084         drm_object_attach_property(&connector->base,
1085                                    qdev->hotplug_mode_update_property, 0);
1086         drm_object_attach_property(&connector->base,
1087                                    dev->mode_config.suggested_x_property, 0);
1088         drm_object_attach_property(&connector->base,
1089                                    dev->mode_config.suggested_y_property, 0);
1090         return 0;
1091 }
1092
1093 static struct drm_framebuffer *
1094 qxl_user_framebuffer_create(struct drm_device *dev,
1095                             struct drm_file *file_priv,
1096                             const struct drm_mode_fb_cmd2 *mode_cmd)
1097 {
1098         struct drm_gem_object *obj;
1099         struct qxl_framebuffer *qxl_fb;
1100         int ret;
1101
1102         obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
1103         if (!obj)
1104                 return NULL;
1105
1106         qxl_fb = kzalloc(sizeof(*qxl_fb), GFP_KERNEL);
1107         if (qxl_fb == NULL)
1108                 return NULL;
1109
1110         ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj, &qxl_fb_funcs);
1111         if (ret) {
1112                 kfree(qxl_fb);
1113                 drm_gem_object_unreference_unlocked(obj);
1114                 return NULL;
1115         }
1116
1117         return &qxl_fb->base;
1118 }
1119
1120 static const struct drm_mode_config_funcs qxl_mode_funcs = {
1121         .fb_create = qxl_user_framebuffer_create,
1122         .atomic_check = drm_atomic_helper_check,
1123         .atomic_commit = drm_atomic_helper_commit,
1124 };
1125
1126 int qxl_create_monitors_object(struct qxl_device *qdev)
1127 {
1128         int ret;
1129         struct drm_gem_object *gobj;
1130         int max_allowed = qxl_num_crtc;
1131         int monitors_config_size = sizeof(struct qxl_monitors_config) +
1132                 max_allowed * sizeof(struct qxl_head);
1133
1134         ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
1135                                     QXL_GEM_DOMAIN_VRAM,
1136                                     false, false, NULL, &gobj);
1137         if (ret) {
1138                 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1139                 return -ENOMEM;
1140         }
1141         qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1142
1143         ret = qxl_bo_pin(qdev->monitors_config_bo, QXL_GEM_DOMAIN_VRAM, NULL);
1144         if (ret)
1145                 return ret;
1146
1147         qxl_bo_kmap(qdev->monitors_config_bo, NULL);
1148
1149         qdev->monitors_config = qdev->monitors_config_bo->kptr;
1150         qdev->ram_header->monitors_config =
1151                 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
1152
1153         memset(qdev->monitors_config, 0, monitors_config_size);
1154         qdev->monitors_config->max_allowed = max_allowed;
1155         return 0;
1156 }
1157
1158 int qxl_destroy_monitors_object(struct qxl_device *qdev)
1159 {
1160         int ret;
1161
1162         qdev->monitors_config = NULL;
1163         qdev->ram_header->monitors_config = 0;
1164
1165         qxl_bo_kunmap(qdev->monitors_config_bo);
1166         ret = qxl_bo_unpin(qdev->monitors_config_bo);
1167         if (ret)
1168                 return ret;
1169
1170         qxl_bo_unref(&qdev->monitors_config_bo);
1171         return 0;
1172 }
1173
1174 int qxl_modeset_init(struct qxl_device *qdev)
1175 {
1176         int i;
1177         int ret;
1178
1179         drm_mode_config_init(&qdev->ddev);
1180
1181         ret = qxl_create_monitors_object(qdev);
1182         if (ret)
1183                 return ret;
1184
1185         qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs;
1186
1187         /* modes will be validated against the framebuffer size */
1188         qdev->ddev.mode_config.min_width = 0;
1189         qdev->ddev.mode_config.min_height = 0;
1190         qdev->ddev.mode_config.max_width = 8192;
1191         qdev->ddev.mode_config.max_height = 8192;
1192
1193         qdev->ddev.mode_config.fb_base = qdev->vram_base;
1194
1195         drm_mode_create_suggested_offset_properties(&qdev->ddev);
1196         qxl_mode_create_hotplug_mode_update_property(qdev);
1197
1198         for (i = 0 ; i < qxl_num_crtc; ++i) {
1199                 qdev_crtc_init(&qdev->ddev, i);
1200                 qdev_output_init(&qdev->ddev, i);
1201         }
1202
1203         qxl_display_read_client_monitors_config(qdev);
1204         qdev->mode_info.mode_config_initialized = true;
1205
1206         drm_mode_config_reset(&qdev->ddev);
1207
1208         /* primary surface must be created by this point, to allow
1209          * issuing command queue commands and having them read by
1210          * spice server. */
1211         qxl_fbdev_init(qdev);
1212         return 0;
1213 }
1214
1215 void qxl_modeset_fini(struct qxl_device *qdev)
1216 {
1217         qxl_fbdev_fini(qdev);
1218
1219         qxl_destroy_monitors_object(qdev);
1220         if (qdev->mode_info.mode_config_initialized) {
1221                 drm_mode_config_cleanup(&qdev->ddev);
1222                 qdev->mode_info.mode_config_initialized = false;
1223         }
1224 }