Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[linux-2.6.git] / drivers / gpu / drm / vmwgfx / vmwgfx_kms.c
1 /**************************************************************************
2  *
3  * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
4  * All Rights Reserved.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the
8  * "Software"), to deal in the Software without restriction, including
9  * without limitation the rights to use, copy, modify, merge, publish,
10  * distribute, sub license, and/or sell copies of the Software, and to
11  * permit persons to whom the Software is furnished to do so, subject to
12  * the following conditions:
13  *
14  * The above copyright notice and this permission notice (including the
15  * next paragraph) shall be included in all copies or substantial portions
16  * of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24  * USE OR OTHER DEALINGS IN THE SOFTWARE.
25  *
26  **************************************************************************/
27
28 #include "vmwgfx_kms.h"
29
30
31 /* Might need a hrtimer here? */
32 #define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1)
33
34
35 struct vmw_clip_rect {
36         int x1, x2, y1, y2;
37 };
38
39 /**
40  * Clip @num_rects number of @rects against @clip storing the
41  * results in @out_rects and the number of passed rects in @out_num.
42  */
43 void vmw_clip_cliprects(struct drm_clip_rect *rects,
44                         int num_rects,
45                         struct vmw_clip_rect clip,
46                         SVGASignedRect *out_rects,
47                         int *out_num)
48 {
49         int i, k;
50
51         for (i = 0, k = 0; i < num_rects; i++) {
52                 int x1 = max_t(int, clip.x1, rects[i].x1);
53                 int y1 = max_t(int, clip.y1, rects[i].y1);
54                 int x2 = min_t(int, clip.x2, rects[i].x2);
55                 int y2 = min_t(int, clip.y2, rects[i].y2);
56
57                 if (x1 >= x2)
58                         continue;
59                 if (y1 >= y2)
60                         continue;
61
62                 out_rects[k].left   = x1;
63                 out_rects[k].top    = y1;
64                 out_rects[k].right  = x2;
65                 out_rects[k].bottom = y2;
66                 k++;
67         }
68
69         *out_num = k;
70 }
71
72 void vmw_display_unit_cleanup(struct vmw_display_unit *du)
73 {
74         if (du->cursor_surface)
75                 vmw_surface_unreference(&du->cursor_surface);
76         if (du->cursor_dmabuf)
77                 vmw_dmabuf_unreference(&du->cursor_dmabuf);
78         drm_crtc_cleanup(&du->crtc);
79         drm_encoder_cleanup(&du->encoder);
80         drm_connector_cleanup(&du->connector);
81 }
82
83 /*
84  * Display Unit Cursor functions
85  */
86
87 int vmw_cursor_update_image(struct vmw_private *dev_priv,
88                             u32 *image, u32 width, u32 height,
89                             u32 hotspotX, u32 hotspotY)
90 {
91         struct {
92                 u32 cmd;
93                 SVGAFifoCmdDefineAlphaCursor cursor;
94         } *cmd;
95         u32 image_size = width * height * 4;
96         u32 cmd_size = sizeof(*cmd) + image_size;
97
98         if (!image)
99                 return -EINVAL;
100
101         cmd = vmw_fifo_reserve(dev_priv, cmd_size);
102         if (unlikely(cmd == NULL)) {
103                 DRM_ERROR("Fifo reserve failed.\n");
104                 return -ENOMEM;
105         }
106
107         memset(cmd, 0, sizeof(*cmd));
108
109         memcpy(&cmd[1], image, image_size);
110
111         cmd->cmd = cpu_to_le32(SVGA_CMD_DEFINE_ALPHA_CURSOR);
112         cmd->cursor.id = cpu_to_le32(0);
113         cmd->cursor.width = cpu_to_le32(width);
114         cmd->cursor.height = cpu_to_le32(height);
115         cmd->cursor.hotspotX = cpu_to_le32(hotspotX);
116         cmd->cursor.hotspotY = cpu_to_le32(hotspotY);
117
118         vmw_fifo_commit(dev_priv, cmd_size);
119
120         return 0;
121 }
122
123 int vmw_cursor_update_dmabuf(struct vmw_private *dev_priv,
124                              struct vmw_dma_buffer *dmabuf,
125                              u32 width, u32 height,
126                              u32 hotspotX, u32 hotspotY)
127 {
128         struct ttm_bo_kmap_obj map;
129         unsigned long kmap_offset;
130         unsigned long kmap_num;
131         void *virtual;
132         bool dummy;
133         int ret;
134
135         kmap_offset = 0;
136         kmap_num = (width*height*4 + PAGE_SIZE - 1) >> PAGE_SHIFT;
137
138         ret = ttm_bo_reserve(&dmabuf->base, true, false, false, 0);
139         if (unlikely(ret != 0)) {
140                 DRM_ERROR("reserve failed\n");
141                 return -EINVAL;
142         }
143
144         ret = ttm_bo_kmap(&dmabuf->base, kmap_offset, kmap_num, &map);
145         if (unlikely(ret != 0))
146                 goto err_unreserve;
147
148         virtual = ttm_kmap_obj_virtual(&map, &dummy);
149         ret = vmw_cursor_update_image(dev_priv, virtual, width, height,
150                                       hotspotX, hotspotY);
151
152         ttm_bo_kunmap(&map);
153 err_unreserve:
154         ttm_bo_unreserve(&dmabuf->base);
155
156         return ret;
157 }
158
159
160 void vmw_cursor_update_position(struct vmw_private *dev_priv,
161                                 bool show, int x, int y)
162 {
163         __le32 __iomem *fifo_mem = dev_priv->mmio_virt;
164         uint32_t count;
165
166         iowrite32(show ? 1 : 0, fifo_mem + SVGA_FIFO_CURSOR_ON);
167         iowrite32(x, fifo_mem + SVGA_FIFO_CURSOR_X);
168         iowrite32(y, fifo_mem + SVGA_FIFO_CURSOR_Y);
169         count = ioread32(fifo_mem + SVGA_FIFO_CURSOR_COUNT);
170         iowrite32(++count, fifo_mem + SVGA_FIFO_CURSOR_COUNT);
171 }
172
173 int vmw_du_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
174                            uint32_t handle, uint32_t width, uint32_t height)
175 {
176         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
177         struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
178         struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
179         struct vmw_surface *surface = NULL;
180         struct vmw_dma_buffer *dmabuf = NULL;
181         int ret;
182
183         /* A lot of the code assumes this */
184         if (handle && (width != 64 || height != 64))
185                 return -EINVAL;
186
187         if (handle) {
188                 ret = vmw_user_lookup_handle(dev_priv, tfile,
189                                              handle, &surface, &dmabuf);
190                 if (ret) {
191                         DRM_ERROR("failed to find surface or dmabuf: %i\n", ret);
192                         return -EINVAL;
193                 }
194         }
195
196         /* need to do this before taking down old image */
197         if (surface && !surface->snooper.image) {
198                 DRM_ERROR("surface not suitable for cursor\n");
199                 vmw_surface_unreference(&surface);
200                 return -EINVAL;
201         }
202
203         /* takedown old cursor */
204         if (du->cursor_surface) {
205                 du->cursor_surface->snooper.crtc = NULL;
206                 vmw_surface_unreference(&du->cursor_surface);
207         }
208         if (du->cursor_dmabuf)
209                 vmw_dmabuf_unreference(&du->cursor_dmabuf);
210
211         /* setup new image */
212         if (surface) {
213                 /* vmw_user_surface_lookup takes one reference */
214                 du->cursor_surface = surface;
215
216                 du->cursor_surface->snooper.crtc = crtc;
217                 du->cursor_age = du->cursor_surface->snooper.age;
218                 vmw_cursor_update_image(dev_priv, surface->snooper.image,
219                                         64, 64, du->hotspot_x, du->hotspot_y);
220         } else if (dmabuf) {
221                 /* vmw_user_surface_lookup takes one reference */
222                 du->cursor_dmabuf = dmabuf;
223
224                 ret = vmw_cursor_update_dmabuf(dev_priv, dmabuf, width, height,
225                                                du->hotspot_x, du->hotspot_y);
226         } else {
227                 vmw_cursor_update_position(dev_priv, false, 0, 0);
228                 return 0;
229         }
230
231         vmw_cursor_update_position(dev_priv, true,
232                                    du->cursor_x + du->hotspot_x,
233                                    du->cursor_y + du->hotspot_y);
234
235         return 0;
236 }
237
238 int vmw_du_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
239 {
240         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
241         struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
242         bool shown = du->cursor_surface || du->cursor_dmabuf ? true : false;
243
244         du->cursor_x = x + crtc->x;
245         du->cursor_y = y + crtc->y;
246
247         vmw_cursor_update_position(dev_priv, shown,
248                                    du->cursor_x + du->hotspot_x,
249                                    du->cursor_y + du->hotspot_y);
250
251         return 0;
252 }
253
254 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
255                           struct ttm_object_file *tfile,
256                           struct ttm_buffer_object *bo,
257                           SVGA3dCmdHeader *header)
258 {
259         struct ttm_bo_kmap_obj map;
260         unsigned long kmap_offset;
261         unsigned long kmap_num;
262         SVGA3dCopyBox *box;
263         unsigned box_count;
264         void *virtual;
265         bool dummy;
266         struct vmw_dma_cmd {
267                 SVGA3dCmdHeader header;
268                 SVGA3dCmdSurfaceDMA dma;
269         } *cmd;
270         int i, ret;
271
272         cmd = container_of(header, struct vmw_dma_cmd, header);
273
274         /* No snooper installed */
275         if (!srf->snooper.image)
276                 return;
277
278         if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
279                 DRM_ERROR("face and mipmap for cursors should never != 0\n");
280                 return;
281         }
282
283         if (cmd->header.size < 64) {
284                 DRM_ERROR("at least one full copy box must be given\n");
285                 return;
286         }
287
288         box = (SVGA3dCopyBox *)&cmd[1];
289         box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
290                         sizeof(SVGA3dCopyBox);
291
292         if (cmd->dma.guest.ptr.offset % PAGE_SIZE ||
293             box->x != 0    || box->y != 0    || box->z != 0    ||
294             box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
295             box->d != 1    || box_count != 1) {
296                 /* TODO handle none page aligned offsets */
297                 /* TODO handle more dst & src != 0 */
298                 /* TODO handle more then one copy */
299                 DRM_ERROR("Cant snoop dma request for cursor!\n");
300                 DRM_ERROR("(%u, %u, %u) (%u, %u, %u) (%ux%ux%u) %u %u\n",
301                           box->srcx, box->srcy, box->srcz,
302                           box->x, box->y, box->z,
303                           box->w, box->h, box->d, box_count,
304                           cmd->dma.guest.ptr.offset);
305                 return;
306         }
307
308         kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
309         kmap_num = (64*64*4) >> PAGE_SHIFT;
310
311         ret = ttm_bo_reserve(bo, true, false, false, 0);
312         if (unlikely(ret != 0)) {
313                 DRM_ERROR("reserve failed\n");
314                 return;
315         }
316
317         ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
318         if (unlikely(ret != 0))
319                 goto err_unreserve;
320
321         virtual = ttm_kmap_obj_virtual(&map, &dummy);
322
323         if (box->w == 64 && cmd->dma.guest.pitch == 64*4) {
324                 memcpy(srf->snooper.image, virtual, 64*64*4);
325         } else {
326                 /* Image is unsigned pointer. */
327                 for (i = 0; i < box->h; i++)
328                         memcpy(srf->snooper.image + i * 64,
329                                virtual + i * cmd->dma.guest.pitch,
330                                box->w * 4);
331         }
332
333         srf->snooper.age++;
334
335         /* we can't call this function from this function since execbuf has
336          * reserved fifo space.
337          *
338          * if (srf->snooper.crtc)
339          *      vmw_ldu_crtc_cursor_update_image(dev_priv,
340          *                                       srf->snooper.image, 64, 64,
341          *                                       du->hotspot_x, du->hotspot_y);
342          */
343
344         ttm_bo_kunmap(&map);
345 err_unreserve:
346         ttm_bo_unreserve(bo);
347 }
348
349 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
350 {
351         struct drm_device *dev = dev_priv->dev;
352         struct vmw_display_unit *du;
353         struct drm_crtc *crtc;
354
355         mutex_lock(&dev->mode_config.mutex);
356
357         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
358                 du = vmw_crtc_to_du(crtc);
359                 if (!du->cursor_surface ||
360                     du->cursor_age == du->cursor_surface->snooper.age)
361                         continue;
362
363                 du->cursor_age = du->cursor_surface->snooper.age;
364                 vmw_cursor_update_image(dev_priv,
365                                         du->cursor_surface->snooper.image,
366                                         64, 64, du->hotspot_x, du->hotspot_y);
367         }
368
369         mutex_unlock(&dev->mode_config.mutex);
370 }
371
372 /*
373  * Generic framebuffer code
374  */
375
376 int vmw_framebuffer_create_handle(struct drm_framebuffer *fb,
377                                   struct drm_file *file_priv,
378                                   unsigned int *handle)
379 {
380         if (handle)
381                 handle = 0;
382
383         return 0;
384 }
385
386 /*
387  * Surface framebuffer code
388  */
389
390 #define vmw_framebuffer_to_vfbs(x) \
391         container_of(x, struct vmw_framebuffer_surface, base.base)
392
393 struct vmw_framebuffer_surface {
394         struct vmw_framebuffer base;
395         struct vmw_surface *surface;
396         struct vmw_dma_buffer *buffer;
397         struct list_head head;
398         struct drm_master *master;
399 };
400
401 void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
402 {
403         struct vmw_framebuffer_surface *vfbs =
404                 vmw_framebuffer_to_vfbs(framebuffer);
405         struct vmw_master *vmaster = vmw_master(vfbs->master);
406
407
408         mutex_lock(&vmaster->fb_surf_mutex);
409         list_del(&vfbs->head);
410         mutex_unlock(&vmaster->fb_surf_mutex);
411
412         drm_master_put(&vfbs->master);
413         drm_framebuffer_cleanup(framebuffer);
414         vmw_surface_unreference(&vfbs->surface);
415         ttm_base_object_unref(&vfbs->base.user_obj);
416
417         kfree(vfbs);
418 }
419
420 static int do_surface_dirty_sou(struct vmw_private *dev_priv,
421                                 struct drm_file *file_priv,
422                                 struct vmw_framebuffer *framebuffer,
423                                 unsigned flags, unsigned color,
424                                 struct drm_clip_rect *clips,
425                                 unsigned num_clips, int inc)
426 {
427         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
428         struct drm_clip_rect *clips_ptr;
429         struct drm_clip_rect *tmp;
430         struct drm_crtc *crtc;
431         size_t fifo_size;
432         int i, num_units;
433         int ret = 0; /* silence warning */
434         int left, right, top, bottom;
435
436         struct {
437                 SVGA3dCmdHeader header;
438                 SVGA3dCmdBlitSurfaceToScreen body;
439         } *cmd;
440         SVGASignedRect *blits;
441
442         num_units = 0;
443         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list,
444                             head) {
445                 if (crtc->fb != &framebuffer->base)
446                         continue;
447                 units[num_units++] = vmw_crtc_to_du(crtc);
448         }
449
450         BUG_ON(!clips || !num_clips);
451
452         tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL);
453         if (unlikely(tmp == NULL)) {
454                 DRM_ERROR("Temporary cliprect memory alloc failed.\n");
455                 return -ENOMEM;
456         }
457
458         fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips;
459         cmd = kzalloc(fifo_size, GFP_KERNEL);
460         if (unlikely(cmd == NULL)) {
461                 DRM_ERROR("Temporary fifo memory alloc failed.\n");
462                 ret = -ENOMEM;
463                 goto out_free_tmp;
464         }
465
466         /* setup blits pointer */
467         blits = (SVGASignedRect *)&cmd[1];
468
469         /* initial clip region */
470         left = clips->x1;
471         right = clips->x2;
472         top = clips->y1;
473         bottom = clips->y2;
474
475         /* skip the first clip rect */
476         for (i = 1, clips_ptr = clips + inc;
477              i < num_clips; i++, clips_ptr += inc) {
478                 left = min_t(int, left, (int)clips_ptr->x1);
479                 right = max_t(int, right, (int)clips_ptr->x2);
480                 top = min_t(int, top, (int)clips_ptr->y1);
481                 bottom = max_t(int, bottom, (int)clips_ptr->y2);
482         }
483
484         /* only need to do this once */
485         memset(cmd, 0, fifo_size);
486         cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
487         cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
488
489         cmd->body.srcRect.left = left;
490         cmd->body.srcRect.right = right;
491         cmd->body.srcRect.top = top;
492         cmd->body.srcRect.bottom = bottom;
493
494         clips_ptr = clips;
495         for (i = 0; i < num_clips; i++, clips_ptr += inc) {
496                 tmp[i].x1 = clips_ptr->x1 - left;
497                 tmp[i].x2 = clips_ptr->x2 - left;
498                 tmp[i].y1 = clips_ptr->y1 - top;
499                 tmp[i].y2 = clips_ptr->y2 - top;
500         }
501
502         /* do per unit writing, reuse fifo for each */
503         for (i = 0; i < num_units; i++) {
504                 struct vmw_display_unit *unit = units[i];
505                 struct vmw_clip_rect clip;
506                 int num;
507
508                 clip.x1 = left - unit->crtc.x;
509                 clip.y1 = top - unit->crtc.y;
510                 clip.x2 = right - unit->crtc.x;
511                 clip.y2 = bottom - unit->crtc.y;
512
513                 /* skip any crtcs that misses the clip region */
514                 if (clip.x1 >= unit->crtc.mode.hdisplay ||
515                     clip.y1 >= unit->crtc.mode.vdisplay ||
516                     clip.x2 <= 0 || clip.y2 <= 0)
517                         continue;
518
519                 /*
520                  * In order for the clip rects to be correctly scaled
521                  * the src and dest rects needs to be the same size.
522                  */
523                 cmd->body.destRect.left = clip.x1;
524                 cmd->body.destRect.right = clip.x2;
525                 cmd->body.destRect.top = clip.y1;
526                 cmd->body.destRect.bottom = clip.y2;
527
528                 /* create a clip rect of the crtc in dest coords */
529                 clip.x2 = unit->crtc.mode.hdisplay - clip.x1;
530                 clip.y2 = unit->crtc.mode.vdisplay - clip.y1;
531                 clip.x1 = 0 - clip.x1;
532                 clip.y1 = 0 - clip.y1;
533
534                 /* need to reset sid as it is changed by execbuf */
535                 cmd->body.srcImage.sid = cpu_to_le32(framebuffer->user_handle);
536                 cmd->body.destScreenId = unit->unit;
537
538                 /* clip and write blits to cmd stream */
539                 vmw_clip_cliprects(tmp, num_clips, clip, blits, &num);
540
541                 /* if no cliprects hit skip this */
542                 if (num == 0)
543                         continue;
544
545
546                 /* recalculate package length */
547                 fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num;
548                 cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
549                 ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
550                                           fifo_size, 0, NULL);
551
552                 if (unlikely(ret != 0))
553                         break;
554         }
555
556
557         kfree(cmd);
558 out_free_tmp:
559         kfree(tmp);
560
561         return ret;
562 }
563
564 int vmw_framebuffer_surface_dirty(struct drm_framebuffer *framebuffer,
565                                   struct drm_file *file_priv,
566                                   unsigned flags, unsigned color,
567                                   struct drm_clip_rect *clips,
568                                   unsigned num_clips)
569 {
570         struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
571         struct vmw_master *vmaster = vmw_master(file_priv->master);
572         struct vmw_framebuffer_surface *vfbs =
573                 vmw_framebuffer_to_vfbs(framebuffer);
574         struct drm_clip_rect norect;
575         int ret, inc = 1;
576
577         if (unlikely(vfbs->master != file_priv->master))
578                 return -EINVAL;
579
580         /* Require ScreenObject support for 3D */
581         if (!dev_priv->sou_priv)
582                 return -EINVAL;
583
584         ret = ttm_read_lock(&vmaster->lock, true);
585         if (unlikely(ret != 0))
586                 return ret;
587
588         if (!num_clips) {
589                 num_clips = 1;
590                 clips = &norect;
591                 norect.x1 = norect.y1 = 0;
592                 norect.x2 = framebuffer->width;
593                 norect.y2 = framebuffer->height;
594         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
595                 num_clips /= 2;
596                 inc = 2; /* skip source rects */
597         }
598
599         ret = do_surface_dirty_sou(dev_priv, file_priv, &vfbs->base,
600                                    flags, color,
601                                    clips, num_clips, inc);
602
603         ttm_read_unlock(&vmaster->lock);
604         return 0;
605 }
606
607 static struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
608         .destroy = vmw_framebuffer_surface_destroy,
609         .dirty = vmw_framebuffer_surface_dirty,
610         .create_handle = vmw_framebuffer_create_handle,
611 };
612
613 static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
614                                            struct drm_file *file_priv,
615                                            struct vmw_surface *surface,
616                                            struct vmw_framebuffer **out,
617                                            const struct drm_mode_fb_cmd
618                                            *mode_cmd)
619
620 {
621         struct drm_device *dev = dev_priv->dev;
622         struct vmw_framebuffer_surface *vfbs;
623         enum SVGA3dSurfaceFormat format;
624         struct vmw_master *vmaster = vmw_master(file_priv->master);
625         int ret;
626
627         /* 3D is only supported on HWv8 hosts which supports screen objects */
628         if (!dev_priv->sou_priv)
629                 return -ENOSYS;
630
631         /*
632          * Sanity checks.
633          */
634
635         /* Surface must be marked as a scanout. */
636         if (unlikely(!surface->scanout))
637                 return -EINVAL;
638
639         if (unlikely(surface->mip_levels[0] != 1 ||
640                      surface->num_sizes != 1 ||
641                      surface->sizes[0].width < mode_cmd->width ||
642                      surface->sizes[0].height < mode_cmd->height ||
643                      surface->sizes[0].depth != 1)) {
644                 DRM_ERROR("Incompatible surface dimensions "
645                           "for requested mode.\n");
646                 return -EINVAL;
647         }
648
649         switch (mode_cmd->depth) {
650         case 32:
651                 format = SVGA3D_A8R8G8B8;
652                 break;
653         case 24:
654                 format = SVGA3D_X8R8G8B8;
655                 break;
656         case 16:
657                 format = SVGA3D_R5G6B5;
658                 break;
659         case 15:
660                 format = SVGA3D_A1R5G5B5;
661                 break;
662         case 8:
663                 format = SVGA3D_LUMINANCE8;
664                 break;
665         default:
666                 DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
667                 return -EINVAL;
668         }
669
670         if (unlikely(format != surface->format)) {
671                 DRM_ERROR("Invalid surface format for requested mode.\n");
672                 return -EINVAL;
673         }
674
675         vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
676         if (!vfbs) {
677                 ret = -ENOMEM;
678                 goto out_err1;
679         }
680
681         ret = drm_framebuffer_init(dev, &vfbs->base.base,
682                                    &vmw_framebuffer_surface_funcs);
683         if (ret)
684                 goto out_err2;
685
686         if (!vmw_surface_reference(surface)) {
687                 DRM_ERROR("failed to reference surface %p\n", surface);
688                 goto out_err3;
689         }
690
691         /* XXX get the first 3 from the surface info */
692         vfbs->base.base.bits_per_pixel = mode_cmd->bpp;
693         vfbs->base.base.pitch = mode_cmd->pitch;
694         vfbs->base.base.depth = mode_cmd->depth;
695         vfbs->base.base.width = mode_cmd->width;
696         vfbs->base.base.height = mode_cmd->height;
697         vfbs->surface = surface;
698         vfbs->base.user_handle = mode_cmd->handle;
699         vfbs->master = drm_master_get(file_priv->master);
700
701         mutex_lock(&vmaster->fb_surf_mutex);
702         list_add_tail(&vfbs->head, &vmaster->fb_surf);
703         mutex_unlock(&vmaster->fb_surf_mutex);
704
705         *out = &vfbs->base;
706
707         return 0;
708
709 out_err3:
710         drm_framebuffer_cleanup(&vfbs->base.base);
711 out_err2:
712         kfree(vfbs);
713 out_err1:
714         return ret;
715 }
716
717 /*
718  * Dmabuf framebuffer code
719  */
720
721 #define vmw_framebuffer_to_vfbd(x) \
722         container_of(x, struct vmw_framebuffer_dmabuf, base.base)
723
724 struct vmw_framebuffer_dmabuf {
725         struct vmw_framebuffer base;
726         struct vmw_dma_buffer *buffer;
727 };
728
729 void vmw_framebuffer_dmabuf_destroy(struct drm_framebuffer *framebuffer)
730 {
731         struct vmw_framebuffer_dmabuf *vfbd =
732                 vmw_framebuffer_to_vfbd(framebuffer);
733
734         drm_framebuffer_cleanup(framebuffer);
735         vmw_dmabuf_unreference(&vfbd->buffer);
736         ttm_base_object_unref(&vfbd->base.user_obj);
737
738         kfree(vfbd);
739 }
740
741 static int do_dmabuf_dirty_ldu(struct vmw_private *dev_priv,
742                                struct vmw_framebuffer *framebuffer,
743                                unsigned flags, unsigned color,
744                                struct drm_clip_rect *clips,
745                                unsigned num_clips, int increment)
746 {
747         size_t fifo_size;
748         int i;
749
750         struct {
751                 uint32_t header;
752                 SVGAFifoCmdUpdate body;
753         } *cmd;
754
755         fifo_size = sizeof(*cmd) * num_clips;
756         cmd = vmw_fifo_reserve(dev_priv, fifo_size);
757         if (unlikely(cmd == NULL)) {
758                 DRM_ERROR("Fifo reserve failed.\n");
759                 return -ENOMEM;
760         }
761
762         memset(cmd, 0, fifo_size);
763         for (i = 0; i < num_clips; i++, clips += increment) {
764                 cmd[i].header = cpu_to_le32(SVGA_CMD_UPDATE);
765                 cmd[i].body.x = cpu_to_le32(clips->x1);
766                 cmd[i].body.y = cpu_to_le32(clips->y1);
767                 cmd[i].body.width = cpu_to_le32(clips->x2 - clips->x1);
768                 cmd[i].body.height = cpu_to_le32(clips->y2 - clips->y1);
769         }
770
771         vmw_fifo_commit(dev_priv, fifo_size);
772         return 0;
773 }
774
775 static int do_dmabuf_define_gmrfb(struct drm_file *file_priv,
776                                   struct vmw_private *dev_priv,
777                                   struct vmw_framebuffer *framebuffer)
778 {
779         int depth = framebuffer->base.depth;
780         size_t fifo_size;
781         int ret;
782
783         struct {
784                 uint32_t header;
785                 SVGAFifoCmdDefineGMRFB body;
786         } *cmd;
787
788         /* Emulate RGBA support, contrary to svga_reg.h this is not
789          * supported by hosts. This is only a problem if we are reading
790          * this value later and expecting what we uploaded back.
791          */
792         if (depth == 32)
793                 depth = 24;
794
795         fifo_size = sizeof(*cmd);
796         cmd = kmalloc(fifo_size, GFP_KERNEL);
797         if (unlikely(cmd == NULL)) {
798                 DRM_ERROR("Failed to allocate temporary cmd buffer.\n");
799                 return -ENOMEM;
800         }
801
802         memset(cmd, 0, fifo_size);
803         cmd->header = SVGA_CMD_DEFINE_GMRFB;
804         cmd->body.format.bitsPerPixel = framebuffer->base.bits_per_pixel;
805         cmd->body.format.colorDepth = depth;
806         cmd->body.format.reserved = 0;
807         cmd->body.bytesPerLine = framebuffer->base.pitch;
808         cmd->body.ptr.gmrId = framebuffer->user_handle;
809         cmd->body.ptr.offset = 0;
810
811         ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
812                                   fifo_size, 0, NULL);
813
814         kfree(cmd);
815
816         return ret;
817 }
818
819 static int do_dmabuf_dirty_sou(struct drm_file *file_priv,
820                                struct vmw_private *dev_priv,
821                                struct vmw_framebuffer *framebuffer,
822                                unsigned flags, unsigned color,
823                                struct drm_clip_rect *clips,
824                                unsigned num_clips, int increment)
825 {
826         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
827         struct drm_clip_rect *clips_ptr;
828         int i, k, num_units, ret;
829         struct drm_crtc *crtc;
830         size_t fifo_size;
831
832         struct {
833                 uint32_t header;
834                 SVGAFifoCmdBlitGMRFBToScreen body;
835         } *blits;
836
837         ret = do_dmabuf_define_gmrfb(file_priv, dev_priv, framebuffer);
838         if (unlikely(ret != 0))
839                 return ret; /* define_gmrfb prints warnings */
840
841         fifo_size = sizeof(*blits) * num_clips;
842         blits = kmalloc(fifo_size, GFP_KERNEL);
843         if (unlikely(blits == NULL)) {
844                 DRM_ERROR("Failed to allocate temporary cmd buffer.\n");
845                 return -ENOMEM;
846         }
847
848         num_units = 0;
849         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
850                 if (crtc->fb != &framebuffer->base)
851                         continue;
852                 units[num_units++] = vmw_crtc_to_du(crtc);
853         }
854
855         for (k = 0; k < num_units; k++) {
856                 struct vmw_display_unit *unit = units[k];
857                 int hit_num = 0;
858
859                 clips_ptr = clips;
860                 for (i = 0; i < num_clips; i++, clips_ptr += increment) {
861                         int clip_x1 = clips_ptr->x1 - unit->crtc.x;
862                         int clip_y1 = clips_ptr->y1 - unit->crtc.y;
863                         int clip_x2 = clips_ptr->x2 - unit->crtc.x;
864                         int clip_y2 = clips_ptr->y2 - unit->crtc.y;
865                         int move_x, move_y;
866
867                         /* skip any crtcs that misses the clip region */
868                         if (clip_x1 >= unit->crtc.mode.hdisplay ||
869                             clip_y1 >= unit->crtc.mode.vdisplay ||
870                             clip_x2 <= 0 || clip_y2 <= 0)
871                                 continue;
872
873                         /* clip size to crtc size */
874                         clip_x2 = min_t(int, clip_x2, unit->crtc.mode.hdisplay);
875                         clip_y2 = min_t(int, clip_y2, unit->crtc.mode.vdisplay);
876
877                         /* translate both src and dest to bring clip into screen */
878                         move_x = min_t(int, clip_x1, 0);
879                         move_y = min_t(int, clip_y1, 0);
880
881                         /* actual translate done here */
882                         blits[hit_num].header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN;
883                         blits[hit_num].body.destScreenId = unit->unit;
884                         blits[hit_num].body.srcOrigin.x = clips_ptr->x1 - move_x;
885                         blits[hit_num].body.srcOrigin.y = clips_ptr->y1 - move_y;
886                         blits[hit_num].body.destRect.left = clip_x1 - move_x;
887                         blits[hit_num].body.destRect.top = clip_y1 - move_y;
888                         blits[hit_num].body.destRect.right = clip_x2;
889                         blits[hit_num].body.destRect.bottom = clip_y2;
890                         hit_num++;
891                 }
892
893                 /* no clips hit the crtc */
894                 if (hit_num == 0)
895                         continue;
896
897                 fifo_size = sizeof(*blits) * hit_num;
898                 ret = vmw_execbuf_process(file_priv, dev_priv, NULL, blits,
899                                           fifo_size, 0, NULL);
900
901                 if (unlikely(ret != 0))
902                         break;
903         }
904
905         kfree(blits);
906
907         return ret;
908 }
909
910 int vmw_framebuffer_dmabuf_dirty(struct drm_framebuffer *framebuffer,
911                                  struct drm_file *file_priv,
912                                  unsigned flags, unsigned color,
913                                  struct drm_clip_rect *clips,
914                                  unsigned num_clips)
915 {
916         struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
917         struct vmw_master *vmaster = vmw_master(file_priv->master);
918         struct vmw_framebuffer_dmabuf *vfbd =
919                 vmw_framebuffer_to_vfbd(framebuffer);
920         struct drm_clip_rect norect;
921         int ret, increment = 1;
922
923         ret = ttm_read_lock(&vmaster->lock, true);
924         if (unlikely(ret != 0))
925                 return ret;
926
927         if (!num_clips) {
928                 num_clips = 1;
929                 clips = &norect;
930                 norect.x1 = norect.y1 = 0;
931                 norect.x2 = framebuffer->width;
932                 norect.y2 = framebuffer->height;
933         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
934                 num_clips /= 2;
935                 increment = 2;
936         }
937
938         if (dev_priv->ldu_priv) {
939                 ret = do_dmabuf_dirty_ldu(dev_priv, &vfbd->base,
940                                           flags, color,
941                                           clips, num_clips, increment);
942         } else {
943                 ret = do_dmabuf_dirty_sou(file_priv, dev_priv, &vfbd->base,
944                                           flags, color,
945                                           clips, num_clips, increment);
946         }
947
948         ttm_read_unlock(&vmaster->lock);
949         return ret;
950 }
951
952 static struct drm_framebuffer_funcs vmw_framebuffer_dmabuf_funcs = {
953         .destroy = vmw_framebuffer_dmabuf_destroy,
954         .dirty = vmw_framebuffer_dmabuf_dirty,
955         .create_handle = vmw_framebuffer_create_handle,
956 };
957
958 /**
959  * Pin the dmabuffer to the start of vram.
960  */
961 static int vmw_framebuffer_dmabuf_pin(struct vmw_framebuffer *vfb)
962 {
963         struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
964         struct vmw_framebuffer_dmabuf *vfbd =
965                 vmw_framebuffer_to_vfbd(&vfb->base);
966         int ret;
967
968         /* This code should not be used with screen objects */
969         BUG_ON(dev_priv->sou_priv);
970
971         vmw_overlay_pause_all(dev_priv);
972
973         ret = vmw_dmabuf_to_start_of_vram(dev_priv, vfbd->buffer, true, false);
974
975         vmw_overlay_resume_all(dev_priv);
976
977         WARN_ON(ret != 0);
978
979         return 0;
980 }
981
982 static int vmw_framebuffer_dmabuf_unpin(struct vmw_framebuffer *vfb)
983 {
984         struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
985         struct vmw_framebuffer_dmabuf *vfbd =
986                 vmw_framebuffer_to_vfbd(&vfb->base);
987
988         if (!vfbd->buffer) {
989                 WARN_ON(!vfbd->buffer);
990                 return 0;
991         }
992
993         return vmw_dmabuf_unpin(dev_priv, vfbd->buffer, false);
994 }
995
996 static int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv,
997                                           struct vmw_dma_buffer *dmabuf,
998                                           struct vmw_framebuffer **out,
999                                           const struct drm_mode_fb_cmd
1000                                           *mode_cmd)
1001
1002 {
1003         struct drm_device *dev = dev_priv->dev;
1004         struct vmw_framebuffer_dmabuf *vfbd;
1005         unsigned int requested_size;
1006         int ret;
1007
1008         requested_size = mode_cmd->height * mode_cmd->pitch;
1009         if (unlikely(requested_size > dmabuf->base.num_pages * PAGE_SIZE)) {
1010                 DRM_ERROR("Screen buffer object size is too small "
1011                           "for requested mode.\n");
1012                 return -EINVAL;
1013         }
1014
1015         /* Limited framebuffer color depth support for screen objects */
1016         if (dev_priv->sou_priv) {
1017                 switch (mode_cmd->depth) {
1018                 case 32:
1019                 case 24:
1020                         /* Only support 32 bpp for 32 and 24 depth fbs */
1021                         if (mode_cmd->bpp == 32)
1022                                 break;
1023
1024                         DRM_ERROR("Invalid color depth/bbp: %d %d\n",
1025                                   mode_cmd->depth, mode_cmd->bpp);
1026                         return -EINVAL;
1027                 case 16:
1028                 case 15:
1029                         /* Only support 16 bpp for 16 and 15 depth fbs */
1030                         if (mode_cmd->bpp == 16)
1031                                 break;
1032
1033                         DRM_ERROR("Invalid color depth/bbp: %d %d\n",
1034                                   mode_cmd->depth, mode_cmd->bpp);
1035                         return -EINVAL;
1036                 default:
1037                         DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
1038                         return -EINVAL;
1039                 }
1040         }
1041
1042         vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
1043         if (!vfbd) {
1044                 ret = -ENOMEM;
1045                 goto out_err1;
1046         }
1047
1048         ret = drm_framebuffer_init(dev, &vfbd->base.base,
1049                                    &vmw_framebuffer_dmabuf_funcs);
1050         if (ret)
1051                 goto out_err2;
1052
1053         if (!vmw_dmabuf_reference(dmabuf)) {
1054                 DRM_ERROR("failed to reference dmabuf %p\n", dmabuf);
1055                 goto out_err3;
1056         }
1057
1058         vfbd->base.base.bits_per_pixel = mode_cmd->bpp;
1059         vfbd->base.base.pitch = mode_cmd->pitch;
1060         vfbd->base.base.depth = mode_cmd->depth;
1061         vfbd->base.base.width = mode_cmd->width;
1062         vfbd->base.base.height = mode_cmd->height;
1063         if (!dev_priv->sou_priv) {
1064                 vfbd->base.pin = vmw_framebuffer_dmabuf_pin;
1065                 vfbd->base.unpin = vmw_framebuffer_dmabuf_unpin;
1066         }
1067         vfbd->base.dmabuf = true;
1068         vfbd->buffer = dmabuf;
1069         vfbd->base.user_handle = mode_cmd->handle;
1070         *out = &vfbd->base;
1071
1072         return 0;
1073
1074 out_err3:
1075         drm_framebuffer_cleanup(&vfbd->base.base);
1076 out_err2:
1077         kfree(vfbd);
1078 out_err1:
1079         return ret;
1080 }
1081
1082 /*
1083  * Generic Kernel modesetting functions
1084  */
1085
1086 static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
1087                                                  struct drm_file *file_priv,
1088                                                  struct drm_mode_fb_cmd *mode_cmd)
1089 {
1090         struct vmw_private *dev_priv = vmw_priv(dev);
1091         struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
1092         struct vmw_framebuffer *vfb = NULL;
1093         struct vmw_surface *surface = NULL;
1094         struct vmw_dma_buffer *bo = NULL;
1095         struct ttm_base_object *user_obj;
1096         int ret;
1097
1098         /**
1099          * This code should be conditioned on Screen Objects not being used.
1100          * If screen objects are used, we can allocate a GMR to hold the
1101          * requested framebuffer.
1102          */
1103
1104         if (!vmw_kms_validate_mode_vram(dev_priv,
1105                                         mode_cmd->pitch,
1106                                         mode_cmd->height)) {
1107                 DRM_ERROR("VRAM size is too small for requested mode.\n");
1108                 return ERR_PTR(-ENOMEM);
1109         }
1110
1111         /*
1112          * Take a reference on the user object of the resource
1113          * backing the kms fb. This ensures that user-space handle
1114          * lookups on that resource will always work as long as
1115          * it's registered with a kms framebuffer. This is important,
1116          * since vmw_execbuf_process identifies resources in the
1117          * command stream using user-space handles.
1118          */
1119
1120         user_obj = ttm_base_object_lookup(tfile, mode_cmd->handle);
1121         if (unlikely(user_obj == NULL)) {
1122                 DRM_ERROR("Could not locate requested kms frame buffer.\n");
1123                 return ERR_PTR(-ENOENT);
1124         }
1125
1126         /* returns either a dmabuf or surface */
1127         ret = vmw_user_lookup_handle(dev_priv, tfile,
1128                                      mode_cmd->handle,
1129                                      &surface, &bo);
1130         if (ret)
1131                 goto err_out;
1132
1133         /* Create the new framebuffer depending one what we got back */
1134         if (bo)
1135                 ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb,
1136                                                      mode_cmd);
1137         else if (surface)
1138                 ret = vmw_kms_new_framebuffer_surface(dev_priv, file_priv,
1139                                                       surface, &vfb, mode_cmd);
1140         else
1141                 BUG();
1142
1143 err_out:
1144         /* vmw_user_lookup_handle takes one ref so does new_fb */
1145         if (bo)
1146                 vmw_dmabuf_unreference(&bo);
1147         if (surface)
1148                 vmw_surface_unreference(&surface);
1149
1150         if (ret) {
1151                 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
1152                 ttm_base_object_unref(&user_obj);
1153                 return ERR_PTR(ret);
1154         } else
1155                 vfb->user_obj = user_obj;
1156
1157         return &vfb->base;
1158 }
1159
1160 static struct drm_mode_config_funcs vmw_kms_funcs = {
1161         .fb_create = vmw_kms_fb_create,
1162 };
1163
1164 int vmw_kms_present(struct vmw_private *dev_priv,
1165                     struct drm_file *file_priv,
1166                     struct vmw_framebuffer *vfb,
1167                     struct vmw_surface *surface,
1168                     uint32_t sid,
1169                     int32_t destX, int32_t destY,
1170                     struct drm_vmw_rect *clips,
1171                     uint32_t num_clips)
1172 {
1173         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
1174         struct drm_clip_rect *tmp;
1175         struct drm_crtc *crtc;
1176         size_t fifo_size;
1177         int i, k, num_units;
1178         int ret = 0; /* silence warning */
1179         int left, right, top, bottom;
1180
1181         struct {
1182                 SVGA3dCmdHeader header;
1183                 SVGA3dCmdBlitSurfaceToScreen body;
1184         } *cmd;
1185         SVGASignedRect *blits;
1186
1187         num_units = 0;
1188         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1189                 if (crtc->fb != &vfb->base)
1190                         continue;
1191                 units[num_units++] = vmw_crtc_to_du(crtc);
1192         }
1193
1194         BUG_ON(surface == NULL);
1195         BUG_ON(!clips || !num_clips);
1196
1197         tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL);
1198         if (unlikely(tmp == NULL)) {
1199                 DRM_ERROR("Temporary cliprect memory alloc failed.\n");
1200                 return -ENOMEM;
1201         }
1202
1203         fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips;
1204         cmd = kmalloc(fifo_size, GFP_KERNEL);
1205         if (unlikely(cmd == NULL)) {
1206                 DRM_ERROR("Failed to allocate temporary fifo memory.\n");
1207                 ret = -ENOMEM;
1208                 goto out_free_tmp;
1209         }
1210
1211         left = clips->x;
1212         right = clips->x + clips->w;
1213         top = clips->y;
1214         bottom = clips->y + clips->h;
1215
1216         for (i = 1; i < num_clips; i++) {
1217                 left = min_t(int, left, (int)clips[i].x);
1218                 right = max_t(int, right, (int)clips[i].x + clips[i].w);
1219                 top = min_t(int, top, (int)clips[i].y);
1220                 bottom = max_t(int, bottom, (int)clips[i].y + clips[i].h);
1221         }
1222
1223         /* only need to do this once */
1224         memset(cmd, 0, fifo_size);
1225         cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
1226
1227         blits = (SVGASignedRect *)&cmd[1];
1228
1229         cmd->body.srcRect.left = left;
1230         cmd->body.srcRect.right = right;
1231         cmd->body.srcRect.top = top;
1232         cmd->body.srcRect.bottom = bottom;
1233
1234         for (i = 0; i < num_clips; i++) {
1235                 tmp[i].x1 = clips[i].x - left;
1236                 tmp[i].x2 = clips[i].x + clips[i].w - left;
1237                 tmp[i].y1 = clips[i].y - top;
1238                 tmp[i].y2 = clips[i].y + clips[i].h - top;
1239         }
1240
1241         for (k = 0; k < num_units; k++) {
1242                 struct vmw_display_unit *unit = units[k];
1243                 struct vmw_clip_rect clip;
1244                 int num;
1245
1246                 clip.x1 = left + destX - unit->crtc.x;
1247                 clip.y1 = top + destY - unit->crtc.y;
1248                 clip.x2 = right + destX - unit->crtc.x;
1249                 clip.y2 = bottom + destY - unit->crtc.y;
1250
1251                 /* skip any crtcs that misses the clip region */
1252                 if (clip.x1 >= unit->crtc.mode.hdisplay ||
1253                     clip.y1 >= unit->crtc.mode.vdisplay ||
1254                     clip.x2 <= 0 || clip.y2 <= 0)
1255                         continue;
1256
1257                 /*
1258                  * In order for the clip rects to be correctly scaled
1259                  * the src and dest rects needs to be the same size.
1260                  */
1261                 cmd->body.destRect.left = clip.x1;
1262                 cmd->body.destRect.right = clip.x2;
1263                 cmd->body.destRect.top = clip.y1;
1264                 cmd->body.destRect.bottom = clip.y2;
1265
1266                 /* create a clip rect of the crtc in dest coords */
1267                 clip.x2 = unit->crtc.mode.hdisplay - clip.x1;
1268                 clip.y2 = unit->crtc.mode.vdisplay - clip.y1;
1269                 clip.x1 = 0 - clip.x1;
1270                 clip.y1 = 0 - clip.y1;
1271
1272                 /* need to reset sid as it is changed by execbuf */
1273                 cmd->body.srcImage.sid = sid;
1274                 cmd->body.destScreenId = unit->unit;
1275
1276                 /* clip and write blits to cmd stream */
1277                 vmw_clip_cliprects(tmp, num_clips, clip, blits, &num);
1278
1279                 /* if no cliprects hit skip this */
1280                 if (num == 0)
1281                         continue;
1282
1283                 /* recalculate package length */
1284                 fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num;
1285                 cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
1286                 ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
1287                                           fifo_size, 0, NULL);
1288
1289                 if (unlikely(ret != 0))
1290                         break;
1291         }
1292
1293         kfree(cmd);
1294 out_free_tmp:
1295         kfree(tmp);
1296
1297         return ret;
1298 }
1299
1300 int vmw_kms_readback(struct vmw_private *dev_priv,
1301                      struct drm_file *file_priv,
1302                      struct vmw_framebuffer *vfb,
1303                      struct drm_vmw_fence_rep __user *user_fence_rep,
1304                      struct drm_vmw_rect *clips,
1305                      uint32_t num_clips)
1306 {
1307         struct vmw_framebuffer_dmabuf *vfbd =
1308                 vmw_framebuffer_to_vfbd(&vfb->base);
1309         struct vmw_dma_buffer *dmabuf = vfbd->buffer;
1310         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
1311         struct drm_crtc *crtc;
1312         size_t fifo_size;
1313         int i, k, ret, num_units, blits_pos;
1314
1315         struct {
1316                 uint32_t header;
1317                 SVGAFifoCmdDefineGMRFB body;
1318         } *cmd;
1319         struct {
1320                 uint32_t header;
1321                 SVGAFifoCmdBlitScreenToGMRFB body;
1322         } *blits;
1323
1324         num_units = 0;
1325         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1326                 if (crtc->fb != &vfb->base)
1327                         continue;
1328                 units[num_units++] = vmw_crtc_to_du(crtc);
1329         }
1330
1331         BUG_ON(dmabuf == NULL);
1332         BUG_ON(!clips || !num_clips);
1333
1334         /* take a safe guess at fifo size */
1335         fifo_size = sizeof(*cmd) + sizeof(*blits) * num_clips * num_units;
1336         cmd = kmalloc(fifo_size, GFP_KERNEL);
1337         if (unlikely(cmd == NULL)) {
1338                 DRM_ERROR("Failed to allocate temporary fifo memory.\n");
1339                 return -ENOMEM;
1340         }
1341
1342         memset(cmd, 0, fifo_size);
1343         cmd->header = SVGA_CMD_DEFINE_GMRFB;
1344         cmd->body.format.bitsPerPixel = vfb->base.bits_per_pixel;
1345         cmd->body.format.colorDepth = vfb->base.depth;
1346         cmd->body.format.reserved = 0;
1347         cmd->body.bytesPerLine = vfb->base.pitch;
1348         cmd->body.ptr.gmrId = vfb->user_handle;
1349         cmd->body.ptr.offset = 0;
1350
1351         blits = (void *)&cmd[1];
1352         blits_pos = 0;
1353         for (i = 0; i < num_units; i++) {
1354                 struct drm_vmw_rect *c = clips;
1355                 for (k = 0; k < num_clips; k++, c++) {
1356                         /* transform clip coords to crtc origin based coords */
1357                         int clip_x1 = c->x - units[i]->crtc.x;
1358                         int clip_x2 = c->x - units[i]->crtc.x + c->w;
1359                         int clip_y1 = c->y - units[i]->crtc.y;
1360                         int clip_y2 = c->y - units[i]->crtc.y + c->h;
1361                         int dest_x = c->x;
1362                         int dest_y = c->y;
1363
1364                         /* compensate for clipping, we negate
1365                          * a negative number and add that.
1366                          */
1367                         if (clip_x1 < 0)
1368                                 dest_x += -clip_x1;
1369                         if (clip_y1 < 0)
1370                                 dest_y += -clip_y1;
1371
1372                         /* clip */
1373                         clip_x1 = max(clip_x1, 0);
1374                         clip_y1 = max(clip_y1, 0);
1375                         clip_x2 = min(clip_x2, units[i]->crtc.mode.hdisplay);
1376                         clip_y2 = min(clip_y2, units[i]->crtc.mode.vdisplay);
1377
1378                         /* and cull any rects that misses the crtc */
1379                         if (clip_x1 >= units[i]->crtc.mode.hdisplay ||
1380                             clip_y1 >= units[i]->crtc.mode.vdisplay ||
1381                             clip_x2 <= 0 || clip_y2 <= 0)
1382                                 continue;
1383
1384                         blits[blits_pos].header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB;
1385                         blits[blits_pos].body.srcScreenId = units[i]->unit;
1386                         blits[blits_pos].body.destOrigin.x = dest_x;
1387                         blits[blits_pos].body.destOrigin.y = dest_y;
1388
1389                         blits[blits_pos].body.srcRect.left = clip_x1;
1390                         blits[blits_pos].body.srcRect.top = clip_y1;
1391                         blits[blits_pos].body.srcRect.right = clip_x2;
1392                         blits[blits_pos].body.srcRect.bottom = clip_y2;
1393                         blits_pos++;
1394                 }
1395         }
1396         /* reset size here and use calculated exact size from loops */
1397         fifo_size = sizeof(*cmd) + sizeof(*blits) * blits_pos;
1398
1399         ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd, fifo_size,
1400                                   0, user_fence_rep);
1401
1402         kfree(cmd);
1403
1404         return ret;
1405 }
1406
1407 int vmw_kms_init(struct vmw_private *dev_priv)
1408 {
1409         struct drm_device *dev = dev_priv->dev;
1410         int ret;
1411
1412         drm_mode_config_init(dev);
1413         dev->mode_config.funcs = &vmw_kms_funcs;
1414         dev->mode_config.min_width = 1;
1415         dev->mode_config.min_height = 1;
1416         /* assumed largest fb size */
1417         dev->mode_config.max_width = 8192;
1418         dev->mode_config.max_height = 8192;
1419
1420         ret = vmw_kms_init_screen_object_display(dev_priv);
1421         if (ret) /* Fallback */
1422                 (void)vmw_kms_init_legacy_display_system(dev_priv);
1423
1424         return 0;
1425 }
1426
1427 int vmw_kms_close(struct vmw_private *dev_priv)
1428 {
1429         /*
1430          * Docs says we should take the lock before calling this function
1431          * but since it destroys encoders and our destructor calls
1432          * drm_encoder_cleanup which takes the lock we deadlock.
1433          */
1434         drm_mode_config_cleanup(dev_priv->dev);
1435         if (dev_priv->sou_priv)
1436                 vmw_kms_close_screen_object_display(dev_priv);
1437         else
1438                 vmw_kms_close_legacy_display_system(dev_priv);
1439         return 0;
1440 }
1441
1442 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1443                                 struct drm_file *file_priv)
1444 {
1445         struct drm_vmw_cursor_bypass_arg *arg = data;
1446         struct vmw_display_unit *du;
1447         struct drm_mode_object *obj;
1448         struct drm_crtc *crtc;
1449         int ret = 0;
1450
1451
1452         mutex_lock(&dev->mode_config.mutex);
1453         if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
1454
1455                 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1456                         du = vmw_crtc_to_du(crtc);
1457                         du->hotspot_x = arg->xhot;
1458                         du->hotspot_y = arg->yhot;
1459                 }
1460
1461                 mutex_unlock(&dev->mode_config.mutex);
1462                 return 0;
1463         }
1464
1465         obj = drm_mode_object_find(dev, arg->crtc_id, DRM_MODE_OBJECT_CRTC);
1466         if (!obj) {
1467                 ret = -EINVAL;
1468                 goto out;
1469         }
1470
1471         crtc = obj_to_crtc(obj);
1472         du = vmw_crtc_to_du(crtc);
1473
1474         du->hotspot_x = arg->xhot;
1475         du->hotspot_y = arg->yhot;
1476
1477 out:
1478         mutex_unlock(&dev->mode_config.mutex);
1479
1480         return ret;
1481 }
1482
1483 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1484                         unsigned width, unsigned height, unsigned pitch,
1485                         unsigned bpp, unsigned depth)
1486 {
1487         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1488                 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
1489         else if (vmw_fifo_have_pitchlock(vmw_priv))
1490                 iowrite32(pitch, vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1491         vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
1492         vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
1493         vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp);
1494
1495         if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) {
1496                 DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n",
1497                           depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH));
1498                 return -EINVAL;
1499         }
1500
1501         return 0;
1502 }
1503
1504 int vmw_kms_save_vga(struct vmw_private *vmw_priv)
1505 {
1506         struct vmw_vga_topology_state *save;
1507         uint32_t i;
1508
1509         vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH);
1510         vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT);
1511         vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL);
1512         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1513                 vmw_priv->vga_pitchlock =
1514                   vmw_read(vmw_priv, SVGA_REG_PITCHLOCK);
1515         else if (vmw_fifo_have_pitchlock(vmw_priv))
1516                 vmw_priv->vga_pitchlock = ioread32(vmw_priv->mmio_virt +
1517                                                        SVGA_FIFO_PITCHLOCK);
1518
1519         if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1520                 return 0;
1521
1522         vmw_priv->num_displays = vmw_read(vmw_priv,
1523                                           SVGA_REG_NUM_GUEST_DISPLAYS);
1524
1525         if (vmw_priv->num_displays == 0)
1526                 vmw_priv->num_displays = 1;
1527
1528         for (i = 0; i < vmw_priv->num_displays; ++i) {
1529                 save = &vmw_priv->vga_save[i];
1530                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1531                 save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY);
1532                 save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X);
1533                 save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y);
1534                 save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH);
1535                 save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT);
1536                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1537                 if (i == 0 && vmw_priv->num_displays == 1 &&
1538                     save->width == 0 && save->height == 0) {
1539
1540                         /*
1541                          * It should be fairly safe to assume that these
1542                          * values are uninitialized.
1543                          */
1544
1545                         save->width = vmw_priv->vga_width - save->pos_x;
1546                         save->height = vmw_priv->vga_height - save->pos_y;
1547                 }
1548         }
1549
1550         return 0;
1551 }
1552
1553 int vmw_kms_restore_vga(struct vmw_private *vmw_priv)
1554 {
1555         struct vmw_vga_topology_state *save;
1556         uint32_t i;
1557
1558         vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width);
1559         vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height);
1560         vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp);
1561         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1562                 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK,
1563                           vmw_priv->vga_pitchlock);
1564         else if (vmw_fifo_have_pitchlock(vmw_priv))
1565                 iowrite32(vmw_priv->vga_pitchlock,
1566                           vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1567
1568         if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1569                 return 0;
1570
1571         for (i = 0; i < vmw_priv->num_displays; ++i) {
1572                 save = &vmw_priv->vga_save[i];
1573                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1574                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary);
1575                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x);
1576                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y);
1577                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width);
1578                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height);
1579                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1580         }
1581
1582         return 0;
1583 }
1584
1585 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1586                                 uint32_t pitch,
1587                                 uint32_t height)
1588 {
1589         return ((u64) pitch * (u64) height) < (u64) dev_priv->vram_size;
1590 }
1591
1592
1593 /**
1594  * Function called by DRM code called with vbl_lock held.
1595  */
1596 u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc)
1597 {
1598         return 0;
1599 }
1600
1601 /**
1602  * Function called by DRM code called with vbl_lock held.
1603  */
1604 int vmw_enable_vblank(struct drm_device *dev, int crtc)
1605 {
1606         return -ENOSYS;
1607 }
1608
1609 /**
1610  * Function called by DRM code called with vbl_lock held.
1611  */
1612 void vmw_disable_vblank(struct drm_device *dev, int crtc)
1613 {
1614 }
1615
1616
1617 /*
1618  * Small shared kms functions.
1619  */
1620
1621 int vmw_du_update_layout(struct vmw_private *dev_priv, unsigned num,
1622                          struct drm_vmw_rect *rects)
1623 {
1624         struct drm_device *dev = dev_priv->dev;
1625         struct vmw_display_unit *du;
1626         struct drm_connector *con;
1627
1628         mutex_lock(&dev->mode_config.mutex);
1629
1630 #if 0
1631         {
1632                 unsigned int i;
1633
1634                 DRM_INFO("%s: new layout ", __func__);
1635                 for (i = 0; i < num; i++)
1636                         DRM_INFO("(%i, %i %ux%u) ", rects[i].x, rects[i].y,
1637                                  rects[i].w, rects[i].h);
1638                 DRM_INFO("\n");
1639         }
1640 #endif
1641
1642         list_for_each_entry(con, &dev->mode_config.connector_list, head) {
1643                 du = vmw_connector_to_du(con);
1644                 if (num > du->unit) {
1645                         du->pref_width = rects[du->unit].w;
1646                         du->pref_height = rects[du->unit].h;
1647                         du->pref_active = true;
1648                         du->gui_x = rects[du->unit].x;
1649                         du->gui_y = rects[du->unit].y;
1650                 } else {
1651                         du->pref_width = 800;
1652                         du->pref_height = 600;
1653                         du->pref_active = false;
1654                 }
1655                 con->status = vmw_du_connector_detect(con, true);
1656         }
1657
1658         mutex_unlock(&dev->mode_config.mutex);
1659
1660         return 0;
1661 }
1662
1663 void vmw_du_crtc_save(struct drm_crtc *crtc)
1664 {
1665 }
1666
1667 void vmw_du_crtc_restore(struct drm_crtc *crtc)
1668 {
1669 }
1670
1671 void vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
1672                            u16 *r, u16 *g, u16 *b,
1673                            uint32_t start, uint32_t size)
1674 {
1675         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
1676         int i;
1677
1678         for (i = 0; i < size; i++) {
1679                 DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
1680                           r[i], g[i], b[i]);
1681                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
1682                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
1683                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
1684         }
1685 }
1686
1687 void vmw_du_connector_dpms(struct drm_connector *connector, int mode)
1688 {
1689 }
1690
1691 void vmw_du_connector_save(struct drm_connector *connector)
1692 {
1693 }
1694
1695 void vmw_du_connector_restore(struct drm_connector *connector)
1696 {
1697 }
1698
1699 enum drm_connector_status
1700 vmw_du_connector_detect(struct drm_connector *connector, bool force)
1701 {
1702         uint32_t num_displays;
1703         struct drm_device *dev = connector->dev;
1704         struct vmw_private *dev_priv = vmw_priv(dev);
1705         struct vmw_display_unit *du = vmw_connector_to_du(connector);
1706
1707         mutex_lock(&dev_priv->hw_mutex);
1708         num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
1709         mutex_unlock(&dev_priv->hw_mutex);
1710
1711         return ((vmw_connector_to_du(connector)->unit < num_displays &&
1712                  du->pref_active) ?
1713                 connector_status_connected : connector_status_disconnected);
1714 }
1715
1716 static struct drm_display_mode vmw_kms_connector_builtin[] = {
1717         /* 640x480@60Hz */
1718         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
1719                    752, 800, 0, 480, 489, 492, 525, 0,
1720                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1721         /* 800x600@60Hz */
1722         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
1723                    968, 1056, 0, 600, 601, 605, 628, 0,
1724                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1725         /* 1024x768@60Hz */
1726         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
1727                    1184, 1344, 0, 768, 771, 777, 806, 0,
1728                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1729         /* 1152x864@75Hz */
1730         { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
1731                    1344, 1600, 0, 864, 865, 868, 900, 0,
1732                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1733         /* 1280x768@60Hz */
1734         { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
1735                    1472, 1664, 0, 768, 771, 778, 798, 0,
1736                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1737         /* 1280x800@60Hz */
1738         { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
1739                    1480, 1680, 0, 800, 803, 809, 831, 0,
1740                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
1741         /* 1280x960@60Hz */
1742         { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
1743                    1488, 1800, 0, 960, 961, 964, 1000, 0,
1744                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1745         /* 1280x1024@60Hz */
1746         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
1747                    1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
1748                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1749         /* 1360x768@60Hz */
1750         { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
1751                    1536, 1792, 0, 768, 771, 777, 795, 0,
1752                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1753         /* 1440x1050@60Hz */
1754         { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
1755                    1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
1756                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1757         /* 1440x900@60Hz */
1758         { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
1759                    1672, 1904, 0, 900, 903, 909, 934, 0,
1760                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1761         /* 1600x1200@60Hz */
1762         { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
1763                    1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
1764                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1765         /* 1680x1050@60Hz */
1766         { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
1767                    1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
1768                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1769         /* 1792x1344@60Hz */
1770         { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
1771                    2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
1772                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1773         /* 1853x1392@60Hz */
1774         { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
1775                    2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
1776                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1777         /* 1920x1200@60Hz */
1778         { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
1779                    2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
1780                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1781         /* 1920x1440@60Hz */
1782         { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
1783                    2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
1784                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1785         /* 2560x1600@60Hz */
1786         { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
1787                    3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
1788                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1789         /* Terminate */
1790         { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
1791 };
1792
1793 /**
1794  * vmw_guess_mode_timing - Provide fake timings for a
1795  * 60Hz vrefresh mode.
1796  *
1797  * @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay
1798  * members filled in.
1799  */
1800 static void vmw_guess_mode_timing(struct drm_display_mode *mode)
1801 {
1802         mode->hsync_start = mode->hdisplay + 50;
1803         mode->hsync_end = mode->hsync_start + 50;
1804         mode->htotal = mode->hsync_end + 50;
1805
1806         mode->vsync_start = mode->vdisplay + 50;
1807         mode->vsync_end = mode->vsync_start + 50;
1808         mode->vtotal = mode->vsync_end + 50;
1809
1810         mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
1811         mode->vrefresh = drm_mode_vrefresh(mode);
1812 }
1813
1814
1815 int vmw_du_connector_fill_modes(struct drm_connector *connector,
1816                                 uint32_t max_width, uint32_t max_height)
1817 {
1818         struct vmw_display_unit *du = vmw_connector_to_du(connector);
1819         struct drm_device *dev = connector->dev;
1820         struct vmw_private *dev_priv = vmw_priv(dev);
1821         struct drm_display_mode *mode = NULL;
1822         struct drm_display_mode *bmode;
1823         struct drm_display_mode prefmode = { DRM_MODE("preferred",
1824                 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
1825                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1826                 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
1827         };
1828         int i;
1829
1830         /* Add preferred mode */
1831         {
1832                 mode = drm_mode_duplicate(dev, &prefmode);
1833                 if (!mode)
1834                         return 0;
1835                 mode->hdisplay = du->pref_width;
1836                 mode->vdisplay = du->pref_height;
1837                 vmw_guess_mode_timing(mode);
1838
1839                 if (vmw_kms_validate_mode_vram(dev_priv, mode->hdisplay * 2,
1840                                                mode->vdisplay)) {
1841                         drm_mode_probed_add(connector, mode);
1842                 } else {
1843                         drm_mode_destroy(dev, mode);
1844                         mode = NULL;
1845                 }
1846
1847                 if (du->pref_mode) {
1848                         list_del_init(&du->pref_mode->head);
1849                         drm_mode_destroy(dev, du->pref_mode);
1850                 }
1851
1852                 /* mode might be null here, this is intended */
1853                 du->pref_mode = mode;
1854         }
1855
1856         for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) {
1857                 bmode = &vmw_kms_connector_builtin[i];
1858                 if (bmode->hdisplay > max_width ||
1859                     bmode->vdisplay > max_height)
1860                         continue;
1861
1862                 if (!vmw_kms_validate_mode_vram(dev_priv, bmode->hdisplay * 2,
1863                                                 bmode->vdisplay))
1864                         continue;
1865
1866                 mode = drm_mode_duplicate(dev, bmode);
1867                 if (!mode)
1868                         return 0;
1869                 mode->vrefresh = drm_mode_vrefresh(mode);
1870
1871                 drm_mode_probed_add(connector, mode);
1872         }
1873
1874         /* Move the prefered mode first, help apps pick the right mode. */
1875         if (du->pref_mode)
1876                 list_move(&du->pref_mode->head, &connector->probed_modes);
1877
1878         drm_mode_connector_list_update(connector);
1879
1880         return 1;
1881 }
1882
1883 int vmw_du_connector_set_property(struct drm_connector *connector,
1884                                   struct drm_property *property,
1885                                   uint64_t val)
1886 {
1887         return 0;
1888 }
1889
1890
1891 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
1892                                 struct drm_file *file_priv)
1893 {
1894         struct vmw_private *dev_priv = vmw_priv(dev);
1895         struct drm_vmw_update_layout_arg *arg =
1896                 (struct drm_vmw_update_layout_arg *)data;
1897         struct vmw_master *vmaster = vmw_master(file_priv->master);
1898         void __user *user_rects;
1899         struct drm_vmw_rect *rects;
1900         unsigned rects_size;
1901         int ret;
1902         int i;
1903         struct drm_mode_config *mode_config = &dev->mode_config;
1904
1905         ret = ttm_read_lock(&vmaster->lock, true);
1906         if (unlikely(ret != 0))
1907                 return ret;
1908
1909         if (!arg->num_outputs) {
1910                 struct drm_vmw_rect def_rect = {0, 0, 800, 600};
1911                 vmw_du_update_layout(dev_priv, 1, &def_rect);
1912                 goto out_unlock;
1913         }
1914
1915         rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
1916         rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect),
1917                         GFP_KERNEL);
1918         if (unlikely(!rects)) {
1919                 ret = -ENOMEM;
1920                 goto out_unlock;
1921         }
1922
1923         user_rects = (void __user *)(unsigned long)arg->rects;
1924         ret = copy_from_user(rects, user_rects, rects_size);
1925         if (unlikely(ret != 0)) {
1926                 DRM_ERROR("Failed to get rects.\n");
1927                 ret = -EFAULT;
1928                 goto out_free;
1929         }
1930
1931         for (i = 0; i < arg->num_outputs; ++i) {
1932                 if (rects[i].x < 0 ||
1933                     rects[i].y < 0 ||
1934                     rects[i].x + rects[i].w > mode_config->max_width ||
1935                     rects[i].y + rects[i].h > mode_config->max_height) {
1936                         DRM_ERROR("Invalid GUI layout.\n");
1937                         ret = -EINVAL;
1938                         goto out_free;
1939                 }
1940         }
1941
1942         vmw_du_update_layout(dev_priv, arg->num_outputs, rects);
1943
1944 out_free:
1945         kfree(rects);
1946 out_unlock:
1947         ttm_read_unlock(&vmaster->lock);
1948         return ret;
1949 }