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Input: xpad - add support for Xbox1 PDP Camo series gamepad
[linux/fpc-iii.git] / drivers / gpu / drm / vmwgfx / vmwgfx_kms.c
blob33ca24ab983e1d5089652818d00a7dc2a7fc4366
1 /**************************************************************************
2 *
3 * Copyright © 2009-2015 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 /* Might need a hrtimer here? */
31 #define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1)
32
33 void vmw_du_cleanup(struct vmw_display_unit *du)
34 {
35 if (du->cursor_surface)
36 vmw_surface_unreference(&du->cursor_surface);
37 if (du->cursor_dmabuf)
38 vmw_dmabuf_unreference(&du->cursor_dmabuf);
39 drm_connector_unregister(&du->connector);
40 drm_crtc_cleanup(&du->crtc);
41 drm_encoder_cleanup(&du->encoder);
42 drm_connector_cleanup(&du->connector);
43 }
44
45 /*
46 * Display Unit Cursor functions
47 */
48
49 int vmw_cursor_update_image(struct vmw_private *dev_priv,
50 u32 *image, u32 width, u32 height,
51 u32 hotspotX, u32 hotspotY)
52 {
53 struct {
54 u32 cmd;
55 SVGAFifoCmdDefineAlphaCursor cursor;
56 } *cmd;
57 u32 image_size = width * height * 4;
58 u32 cmd_size = sizeof(*cmd) + image_size;
59
60 if (!image)
61 return -EINVAL;
62
63 cmd = vmw_fifo_reserve(dev_priv, cmd_size);
64 if (unlikely(cmd == NULL)) {
65 DRM_ERROR("Fifo reserve failed.\n");
66 return -ENOMEM;
67 }
68
69 memset(cmd, 0, sizeof(*cmd));
70
71 memcpy(&cmd[1], image, image_size);
72
73 cmd->cmd = SVGA_CMD_DEFINE_ALPHA_CURSOR;
74 cmd->cursor.id = 0;
75 cmd->cursor.width = width;
76 cmd->cursor.height = height;
77 cmd->cursor.hotspotX = hotspotX;
78 cmd->cursor.hotspotY = hotspotY;
79
80 vmw_fifo_commit_flush(dev_priv, cmd_size);
81
82 return 0;
83 }
84
85 int vmw_cursor_update_dmabuf(struct vmw_private *dev_priv,
86 struct vmw_dma_buffer *dmabuf,
87 u32 width, u32 height,
88 u32 hotspotX, u32 hotspotY)
89 {
90 struct ttm_bo_kmap_obj map;
91 unsigned long kmap_offset;
92 unsigned long kmap_num;
93 void *virtual;
94 bool dummy;
95 int ret;
96
97 kmap_offset = 0;
98 kmap_num = (width*height*4 + PAGE_SIZE - 1) >> PAGE_SHIFT;
99
100 ret = ttm_bo_reserve(&dmabuf->base, true, false, NULL);
101 if (unlikely(ret != 0)) {
102 DRM_ERROR("reserve failed\n");
103 return -EINVAL;
104 }
105
106 ret = ttm_bo_kmap(&dmabuf->base, kmap_offset, kmap_num, &map);
107 if (unlikely(ret != 0))
108 goto err_unreserve;
109
110 virtual = ttm_kmap_obj_virtual(&map, &dummy);
111 ret = vmw_cursor_update_image(dev_priv, virtual, width, height,
112 hotspotX, hotspotY);
113
114 ttm_bo_kunmap(&map);
115 err_unreserve:
116 ttm_bo_unreserve(&dmabuf->base);
117
118 return ret;
119 }
120
121
122 void vmw_cursor_update_position(struct vmw_private *dev_priv,
123 bool show, int x, int y)
124 {
125 u32 *fifo_mem = dev_priv->mmio_virt;
126 uint32_t count;
127
128 vmw_mmio_write(show ? 1 : 0, fifo_mem + SVGA_FIFO_CURSOR_ON);
129 vmw_mmio_write(x, fifo_mem + SVGA_FIFO_CURSOR_X);
130 vmw_mmio_write(y, fifo_mem + SVGA_FIFO_CURSOR_Y);
131 count = vmw_mmio_read(fifo_mem + SVGA_FIFO_CURSOR_COUNT);
132 vmw_mmio_write(++count, fifo_mem + SVGA_FIFO_CURSOR_COUNT);
133 }
134
135
136 /*
137 * vmw_du_crtc_cursor_set2 - Driver cursor_set2 callback.
138 */
139 int vmw_du_crtc_cursor_set2(struct drm_crtc *crtc, struct drm_file *file_priv,
140 uint32_t handle, uint32_t width, uint32_t height,
141 int32_t hot_x, int32_t hot_y)
142 {
143 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
144 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
145 struct vmw_surface *surface = NULL;
146 struct vmw_dma_buffer *dmabuf = NULL;
147 s32 hotspot_x, hotspot_y;
148 int ret;
149
150 /*
151 * FIXME: Unclear whether there's any global state touched by the
152 * cursor_set function, especially vmw_cursor_update_position looks
153 * suspicious. For now take the easy route and reacquire all locks. We
154 * can do this since the caller in the drm core doesn't check anything
155 * which is protected by any looks.
156 */
157 drm_modeset_unlock_crtc(crtc);
158 drm_modeset_lock_all(dev_priv->dev);
159 hotspot_x = hot_x + du->hotspot_x;
160 hotspot_y = hot_y + du->hotspot_y;
161
162 /* A lot of the code assumes this */
163 if (handle && (width != 64 || height != 64)) {
164 ret = -EINVAL;
165 goto out;
166 }
167
168 if (handle) {
169 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
170
171 ret = vmw_user_lookup_handle(dev_priv, tfile,
172 handle, &surface, &dmabuf);
173 if (ret) {
174 DRM_ERROR("failed to find surface or dmabuf: %i\n", ret);
175 ret = -EINVAL;
176 goto out;
177 }
178 }
179
180 /* need to do this before taking down old image */
181 if (surface && !surface->snooper.image) {
182 DRM_ERROR("surface not suitable for cursor\n");
183 vmw_surface_unreference(&surface);
184 ret = -EINVAL;
185 goto out;
186 }
187
188 /* takedown old cursor */
189 if (du->cursor_surface) {
190 du->cursor_surface->snooper.crtc = NULL;
191 vmw_surface_unreference(&du->cursor_surface);
192 }
193 if (du->cursor_dmabuf)
194 vmw_dmabuf_unreference(&du->cursor_dmabuf);
195
196 /* setup new image */
197 ret = 0;
198 if (surface) {
199 /* vmw_user_surface_lookup takes one reference */
200 du->cursor_surface = surface;
201
202 du->cursor_surface->snooper.crtc = crtc;
203 du->cursor_age = du->cursor_surface->snooper.age;
204 ret = vmw_cursor_update_image(dev_priv, surface->snooper.image,
205 64, 64, hotspot_x, hotspot_y);
206 } else if (dmabuf) {
207 /* vmw_user_surface_lookup takes one reference */
208 du->cursor_dmabuf = dmabuf;
209
210 ret = vmw_cursor_update_dmabuf(dev_priv, dmabuf, width, height,
211 hotspot_x, hotspot_y);
212 } else {
213 vmw_cursor_update_position(dev_priv, false, 0, 0);
214 goto out;
215 }
216
217 if (!ret) {
218 vmw_cursor_update_position(dev_priv, true,
219 du->cursor_x + hotspot_x,
220 du->cursor_y + hotspot_y);
221 du->core_hotspot_x = hot_x;
222 du->core_hotspot_y = hot_y;
223 }
224
225 out:
226 drm_modeset_unlock_all(dev_priv->dev);
227 drm_modeset_lock_crtc(crtc, crtc->cursor);
228
229 return ret;
230 }
231
232 int vmw_du_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
233 {
234 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
235 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
236 bool shown = du->cursor_surface || du->cursor_dmabuf ? true : false;
237
238 du->cursor_x = x + du->set_gui_x;
239 du->cursor_y = y + du->set_gui_y;
240
241 /*
242 * FIXME: Unclear whether there's any global state touched by the
243 * cursor_set function, especially vmw_cursor_update_position looks
244 * suspicious. For now take the easy route and reacquire all locks. We
245 * can do this since the caller in the drm core doesn't check anything
246 * which is protected by any looks.
247 */
248 drm_modeset_unlock_crtc(crtc);
249 drm_modeset_lock_all(dev_priv->dev);
250
251 vmw_cursor_update_position(dev_priv, shown,
252 du->cursor_x + du->hotspot_x +
253 du->core_hotspot_x,
254 du->cursor_y + du->hotspot_y +
255 du->core_hotspot_y);
256
257 drm_modeset_unlock_all(dev_priv->dev);
258 drm_modeset_lock_crtc(crtc, crtc->cursor);
259
260 return 0;
261 }
262
263 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
264 struct ttm_object_file *tfile,
265 struct ttm_buffer_object *bo,
266 SVGA3dCmdHeader *header)
267 {
268 struct ttm_bo_kmap_obj map;
269 unsigned long kmap_offset;
270 unsigned long kmap_num;
271 SVGA3dCopyBox *box;
272 unsigned box_count;
273 void *virtual;
274 bool dummy;
275 struct vmw_dma_cmd {
276 SVGA3dCmdHeader header;
277 SVGA3dCmdSurfaceDMA dma;
278 } *cmd;
279 int i, ret;
280
281 cmd = container_of(header, struct vmw_dma_cmd, header);
282
283 /* No snooper installed */
284 if (!srf->snooper.image)
285 return;
286
287 if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
288 DRM_ERROR("face and mipmap for cursors should never != 0\n");
289 return;
290 }
291
292 if (cmd->header.size < 64) {
293 DRM_ERROR("at least one full copy box must be given\n");
294 return;
295 }
296
297 box = (SVGA3dCopyBox *)&cmd[1];
298 box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
299 sizeof(SVGA3dCopyBox);
300
301 if (cmd->dma.guest.ptr.offset % PAGE_SIZE ||
302 box->x != 0 || box->y != 0 || box->z != 0 ||
303 box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
304 box->d != 1 || box_count != 1) {
305 /* TODO handle none page aligned offsets */
306 /* TODO handle more dst & src != 0 */
307 /* TODO handle more then one copy */
308 DRM_ERROR("Cant snoop dma request for cursor!\n");
309 DRM_ERROR("(%u, %u, %u) (%u, %u, %u) (%ux%ux%u) %u %u\n",
310 box->srcx, box->srcy, box->srcz,
311 box->x, box->y, box->z,
312 box->w, box->h, box->d, box_count,
313 cmd->dma.guest.ptr.offset);
314 return;
315 }
316
317 kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
318 kmap_num = (64*64*4) >> PAGE_SHIFT;
319
320 ret = ttm_bo_reserve(bo, true, false, NULL);
321 if (unlikely(ret != 0)) {
322 DRM_ERROR("reserve failed\n");
323 return;
324 }
325
326 ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
327 if (unlikely(ret != 0))
328 goto err_unreserve;
329
330 virtual = ttm_kmap_obj_virtual(&map, &dummy);
331
332 if (box->w == 64 && cmd->dma.guest.pitch == 64*4) {
333 memcpy(srf->snooper.image, virtual, 64*64*4);
334 } else {
335 /* Image is unsigned pointer. */
336 for (i = 0; i < box->h; i++)
337 memcpy(srf->snooper.image + i * 64,
338 virtual + i * cmd->dma.guest.pitch,
339 box->w * 4);
340 }
341
342 srf->snooper.age++;
343
344 ttm_bo_kunmap(&map);
345 err_unreserve:
346 ttm_bo_unreserve(bo);
347 }
348
349 /**
350 * vmw_kms_legacy_hotspot_clear - Clear legacy hotspots
351 *
352 * @dev_priv: Pointer to the device private struct.
353 *
354 * Clears all legacy hotspots.
355 */
356 void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv)
357 {
358 struct drm_device *dev = dev_priv->dev;
359 struct vmw_display_unit *du;
360 struct drm_crtc *crtc;
361
362 drm_modeset_lock_all(dev);
363 drm_for_each_crtc(crtc, dev) {
364 du = vmw_crtc_to_du(crtc);
365
366 du->hotspot_x = 0;
367 du->hotspot_y = 0;
368 }
369 drm_modeset_unlock_all(dev);
370 }
371
372 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
373 {
374 struct drm_device *dev = dev_priv->dev;
375 struct vmw_display_unit *du;
376 struct drm_crtc *crtc;
377
378 mutex_lock(&dev->mode_config.mutex);
379
380 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
381 du = vmw_crtc_to_du(crtc);
382 if (!du->cursor_surface ||
383 du->cursor_age == du->cursor_surface->snooper.age)
384 continue;
385
386 du->cursor_age = du->cursor_surface->snooper.age;
387 vmw_cursor_update_image(dev_priv,
388 du->cursor_surface->snooper.image,
389 64, 64,
390 du->hotspot_x + du->core_hotspot_x,
391 du->hotspot_y + du->core_hotspot_y);
392 }
393
394 mutex_unlock(&dev->mode_config.mutex);
395 }
396
397 /*
398 * Generic framebuffer code
399 */
400
401 /*
402 * Surface framebuffer code
403 */
404
405 static void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
406 {
407 struct vmw_framebuffer_surface *vfbs =
408 vmw_framebuffer_to_vfbs(framebuffer);
409
410 drm_framebuffer_cleanup(framebuffer);
411 vmw_surface_unreference(&vfbs->surface);
412 if (vfbs->base.user_obj)
413 ttm_base_object_unref(&vfbs->base.user_obj);
414
415 kfree(vfbs);
416 }
417
418 static int vmw_framebuffer_surface_dirty(struct drm_framebuffer *framebuffer,
419 struct drm_file *file_priv,
420 unsigned flags, unsigned color,
421 struct drm_clip_rect *clips,
422 unsigned num_clips)
423 {
424 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
425 struct vmw_framebuffer_surface *vfbs =
426 vmw_framebuffer_to_vfbs(framebuffer);
427 struct drm_clip_rect norect;
428 int ret, inc = 1;
429
430 /* Legacy Display Unit does not support 3D */
431 if (dev_priv->active_display_unit == vmw_du_legacy)
432 return -EINVAL;
433
434 drm_modeset_lock_all(dev_priv->dev);
435
436 ret = ttm_read_lock(&dev_priv->reservation_sem, true);
437 if (unlikely(ret != 0)) {
438 drm_modeset_unlock_all(dev_priv->dev);
439 return ret;
440 }
441
442 if (!num_clips) {
443 num_clips = 1;
444 clips = &norect;
445 norect.x1 = norect.y1 = 0;
446 norect.x2 = framebuffer->width;
447 norect.y2 = framebuffer->height;
448 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
449 num_clips /= 2;
450 inc = 2; /* skip source rects */
451 }
452
453 if (dev_priv->active_display_unit == vmw_du_screen_object)
454 ret = vmw_kms_sou_do_surface_dirty(dev_priv, &vfbs->base,
455 clips, NULL, NULL, 0, 0,
456 num_clips, inc, NULL);
457 else
458 ret = vmw_kms_stdu_surface_dirty(dev_priv, &vfbs->base,
459 clips, NULL, NULL, 0, 0,
460 num_clips, inc, NULL);
461
462 vmw_fifo_flush(dev_priv, false);
463 ttm_read_unlock(&dev_priv->reservation_sem);
464
465 drm_modeset_unlock_all(dev_priv->dev);
466
467 return 0;
468 }
469
470 /**
471 * vmw_kms_readback - Perform a readback from the screen system to
472 * a dma-buffer backed framebuffer.
473 *
474 * @dev_priv: Pointer to the device private structure.
475 * @file_priv: Pointer to a struct drm_file identifying the caller.
476 * Must be set to NULL if @user_fence_rep is NULL.
477 * @vfb: Pointer to the dma-buffer backed framebuffer.
478 * @user_fence_rep: User-space provided structure for fence information.
479 * Must be set to non-NULL if @file_priv is non-NULL.
480 * @vclips: Array of clip rects.
481 * @num_clips: Number of clip rects in @vclips.
482 *
483 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
484 * interrupted.
485 */
486 int vmw_kms_readback(struct vmw_private *dev_priv,
487 struct drm_file *file_priv,
488 struct vmw_framebuffer *vfb,
489 struct drm_vmw_fence_rep __user *user_fence_rep,
490 struct drm_vmw_rect *vclips,
491 uint32_t num_clips)
492 {
493 switch (dev_priv->active_display_unit) {
494 case vmw_du_screen_object:
495 return vmw_kms_sou_readback(dev_priv, file_priv, vfb,
496 user_fence_rep, vclips, num_clips);
497 case vmw_du_screen_target:
498 return vmw_kms_stdu_dma(dev_priv, file_priv, vfb,
499 user_fence_rep, NULL, vclips, num_clips,
500 1, false, true);
501 default:
502 WARN_ONCE(true,
503 "Readback called with invalid display system.\n");
504 }
505
506 return -ENOSYS;
507 }
508
509
510 static const struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
511 .destroy = vmw_framebuffer_surface_destroy,
512 .dirty = vmw_framebuffer_surface_dirty,
513 };
514
515 static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
516 struct vmw_surface *surface,
517 struct vmw_framebuffer **out,
518 const struct drm_mode_fb_cmd
519 *mode_cmd,
520 bool is_dmabuf_proxy)
521
522 {
523 struct drm_device *dev = dev_priv->dev;
524 struct vmw_framebuffer_surface *vfbs;
525 enum SVGA3dSurfaceFormat format;
526 int ret;
527
528 /* 3D is only supported on HWv8 and newer hosts */
529 if (dev_priv->active_display_unit == vmw_du_legacy)
530 return -ENOSYS;
531
532 /*
533 * Sanity checks.
534 */
535
536 /* Surface must be marked as a scanout. */
537 if (unlikely(!surface->scanout))
538 return -EINVAL;
539
540 if (unlikely(surface->mip_levels[0] != 1 ||
541 surface->num_sizes != 1 ||
542 surface->base_size.width < mode_cmd->width ||
543 surface->base_size.height < mode_cmd->height ||
544 surface->base_size.depth != 1)) {
545 DRM_ERROR("Incompatible surface dimensions "
546 "for requested mode.\n");
547 return -EINVAL;
548 }
549
550 switch (mode_cmd->depth) {
551 case 32:
552 format = SVGA3D_A8R8G8B8;
553 break;
554 case 24:
555 format = SVGA3D_X8R8G8B8;
556 break;
557 case 16:
558 format = SVGA3D_R5G6B5;
559 break;
560 case 15:
561 format = SVGA3D_A1R5G5B5;
562 break;
563 default:
564 DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
565 return -EINVAL;
566 }
567
568 /*
569 * For DX, surface format validation is done when surface->scanout
570 * is set.
571 */
572 if (!dev_priv->has_dx && format != surface->format) {
573 DRM_ERROR("Invalid surface format for requested mode.\n");
574 return -EINVAL;
575 }
576
577 vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
578 if (!vfbs) {
579 ret = -ENOMEM;
580 goto out_err1;
581 }
582
583 /* XXX get the first 3 from the surface info */
584 vfbs->base.base.bits_per_pixel = mode_cmd->bpp;
585 vfbs->base.base.pitches[0] = mode_cmd->pitch;
586 vfbs->base.base.depth = mode_cmd->depth;
587 vfbs->base.base.width = mode_cmd->width;
588 vfbs->base.base.height = mode_cmd->height;
589 vfbs->surface = vmw_surface_reference(surface);
590 vfbs->base.user_handle = mode_cmd->handle;
591 vfbs->is_dmabuf_proxy = is_dmabuf_proxy;
592
593 *out = &vfbs->base;
594
595 ret = drm_framebuffer_init(dev, &vfbs->base.base,
596 &vmw_framebuffer_surface_funcs);
597 if (ret)
598 goto out_err2;
599
600 return 0;
601
602 out_err2:
603 vmw_surface_unreference(&surface);
604 kfree(vfbs);
605 out_err1:
606 return ret;
607 }
608
609 /*
610 * Dmabuf framebuffer code
611 */
612
613 static void vmw_framebuffer_dmabuf_destroy(struct drm_framebuffer *framebuffer)
614 {
615 struct vmw_framebuffer_dmabuf *vfbd =
616 vmw_framebuffer_to_vfbd(framebuffer);
617
618 drm_framebuffer_cleanup(framebuffer);
619 vmw_dmabuf_unreference(&vfbd->buffer);
620 if (vfbd->base.user_obj)
621 ttm_base_object_unref(&vfbd->base.user_obj);
622
623 kfree(vfbd);
624 }
625
626 static int vmw_framebuffer_dmabuf_dirty(struct drm_framebuffer *framebuffer,
627 struct drm_file *file_priv,
628 unsigned flags, unsigned color,
629 struct drm_clip_rect *clips,
630 unsigned num_clips)
631 {
632 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
633 struct vmw_framebuffer_dmabuf *vfbd =
634 vmw_framebuffer_to_vfbd(framebuffer);
635 struct drm_clip_rect norect;
636 int ret, increment = 1;
637
638 drm_modeset_lock_all(dev_priv->dev);
639
640 ret = ttm_read_lock(&dev_priv->reservation_sem, true);
641 if (unlikely(ret != 0)) {
642 drm_modeset_unlock_all(dev_priv->dev);
643 return ret;
644 }
645
646 if (!num_clips) {
647 num_clips = 1;
648 clips = &norect;
649 norect.x1 = norect.y1 = 0;
650 norect.x2 = framebuffer->width;
651 norect.y2 = framebuffer->height;
652 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
653 num_clips /= 2;
654 increment = 2;
655 }
656
657 switch (dev_priv->active_display_unit) {
658 case vmw_du_screen_target:
659 ret = vmw_kms_stdu_dma(dev_priv, NULL, &vfbd->base, NULL,
660 clips, NULL, num_clips, increment,
661 true, true);
662 break;
663 case vmw_du_screen_object:
664 ret = vmw_kms_sou_do_dmabuf_dirty(dev_priv, &vfbd->base,
665 clips, NULL, num_clips,
666 increment, true, NULL);
667 break;
668 case vmw_du_legacy:
669 ret = vmw_kms_ldu_do_dmabuf_dirty(dev_priv, &vfbd->base, 0, 0,
670 clips, num_clips, increment);
671 break;
672 default:
673 ret = -EINVAL;
674 WARN_ONCE(true, "Dirty called with invalid display system.\n");
675 break;
676 }
677
678 vmw_fifo_flush(dev_priv, false);
679 ttm_read_unlock(&dev_priv->reservation_sem);
680
681 drm_modeset_unlock_all(dev_priv->dev);
682
683 return ret;
684 }
685
686 static const struct drm_framebuffer_funcs vmw_framebuffer_dmabuf_funcs = {
687 .destroy = vmw_framebuffer_dmabuf_destroy,
688 .dirty = vmw_framebuffer_dmabuf_dirty,
689 };
690
691 /**
692 * Pin the dmabuffer to the start of vram.
693 */
694 static int vmw_framebuffer_pin(struct vmw_framebuffer *vfb)
695 {
696 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
697 struct vmw_dma_buffer *buf;
698 int ret;
699
700 buf = vfb->dmabuf ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer :
701 vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup;
702
703 if (!buf)
704 return 0;
705
706 switch (dev_priv->active_display_unit) {
707 case vmw_du_legacy:
708 vmw_overlay_pause_all(dev_priv);
709 ret = vmw_dmabuf_pin_in_start_of_vram(dev_priv, buf, false);
710 vmw_overlay_resume_all(dev_priv);
711 break;
712 case vmw_du_screen_object:
713 case vmw_du_screen_target:
714 if (vfb->dmabuf)
715 return vmw_dmabuf_pin_in_vram_or_gmr(dev_priv, buf,
716 false);
717
718 return vmw_dmabuf_pin_in_placement(dev_priv, buf,
719 &vmw_mob_placement, false);
720 default:
721 return -EINVAL;
722 }
723
724 return ret;
725 }
726
727 static int vmw_framebuffer_unpin(struct vmw_framebuffer *vfb)
728 {
729 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
730 struct vmw_dma_buffer *buf;
731
732 buf = vfb->dmabuf ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer :
733 vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup;
734
735 if (WARN_ON(!buf))
736 return 0;
737
738 return vmw_dmabuf_unpin(dev_priv, buf, false);
739 }
740
741 /**
742 * vmw_create_dmabuf_proxy - create a proxy surface for the DMA buf
743 *
744 * @dev: DRM device
745 * @mode_cmd: parameters for the new surface
746 * @dmabuf_mob: MOB backing the DMA buf
747 * @srf_out: newly created surface
748 *
749 * When the content FB is a DMA buf, we create a surface as a proxy to the
750 * same buffer. This way we can do a surface copy rather than a surface DMA.
751 * This is a more efficient approach
752 *
753 * RETURNS:
754 * 0 on success, error code otherwise
755 */
756 static int vmw_create_dmabuf_proxy(struct drm_device *dev,
757 const struct drm_mode_fb_cmd *mode_cmd,
758 struct vmw_dma_buffer *dmabuf_mob,
759 struct vmw_surface **srf_out)
760 {
761 uint32_t format;
762 struct drm_vmw_size content_base_size;
763 struct vmw_resource *res;
764 unsigned int bytes_pp;
765 int ret;
766
767 switch (mode_cmd->depth) {
768 case 32:
769 case 24:
770 format = SVGA3D_X8R8G8B8;
771 bytes_pp = 4;
772 break;
773
774 case 16:
775 case 15:
776 format = SVGA3D_R5G6B5;
777 bytes_pp = 2;
778 break;
779
780 case 8:
781 format = SVGA3D_P8;
782 bytes_pp = 1;
783 break;
784
785 default:
786 DRM_ERROR("Invalid framebuffer format %d\n", mode_cmd->depth);
787 return -EINVAL;
788 }
789
790 content_base_size.width = mode_cmd->pitch / bytes_pp;
791 content_base_size.height = mode_cmd->height;
792 content_base_size.depth = 1;
793
794 ret = vmw_surface_gb_priv_define(dev,
795 0, /* kernel visible only */
796 0, /* flags */
797 format,
798 true, /* can be a scanout buffer */
799 1, /* num of mip levels */
800 0,
801 0,
802 content_base_size,
803 srf_out);
804 if (ret) {
805 DRM_ERROR("Failed to allocate proxy content buffer\n");
806 return ret;
807 }
808
809 res = &(*srf_out)->res;
810
811 /* Reserve and switch the backing mob. */
812 mutex_lock(&res->dev_priv->cmdbuf_mutex);
813 (void) vmw_resource_reserve(res, false, true);
814 vmw_dmabuf_unreference(&res->backup);
815 res->backup = vmw_dmabuf_reference(dmabuf_mob);
816 res->backup_offset = 0;
817 vmw_resource_unreserve(res, false, NULL, 0);
818 mutex_unlock(&res->dev_priv->cmdbuf_mutex);
819
820 return 0;
821 }
822
823
824
825 static int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv,
826 struct vmw_dma_buffer *dmabuf,
827 struct vmw_framebuffer **out,
828 const struct drm_mode_fb_cmd
829 *mode_cmd)
830
831 {
832 struct drm_device *dev = dev_priv->dev;
833 struct vmw_framebuffer_dmabuf *vfbd;
834 unsigned int requested_size;
835 int ret;
836
837 requested_size = mode_cmd->height * mode_cmd->pitch;
838 if (unlikely(requested_size > dmabuf->base.num_pages * PAGE_SIZE)) {
839 DRM_ERROR("Screen buffer object size is too small "
840 "for requested mode.\n");
841 return -EINVAL;
842 }
843
844 /* Limited framebuffer color depth support for screen objects */
845 if (dev_priv->active_display_unit == vmw_du_screen_object) {
846 switch (mode_cmd->depth) {
847 case 32:
848 case 24:
849 /* Only support 32 bpp for 32 and 24 depth fbs */
850 if (mode_cmd->bpp == 32)
851 break;
852
853 DRM_ERROR("Invalid color depth/bbp: %d %d\n",
854 mode_cmd->depth, mode_cmd->bpp);
855 return -EINVAL;
856 case 16:
857 case 15:
858 /* Only support 16 bpp for 16 and 15 depth fbs */
859 if (mode_cmd->bpp == 16)
860 break;
861
862 DRM_ERROR("Invalid color depth/bbp: %d %d\n",
863 mode_cmd->depth, mode_cmd->bpp);
864 return -EINVAL;
865 default:
866 DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
867 return -EINVAL;
868 }
869 }
870
871 vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
872 if (!vfbd) {
873 ret = -ENOMEM;
874 goto out_err1;
875 }
876
877 vfbd->base.base.bits_per_pixel = mode_cmd->bpp;
878 vfbd->base.base.pitches[0] = mode_cmd->pitch;
879 vfbd->base.base.depth = mode_cmd->depth;
880 vfbd->base.base.width = mode_cmd->width;
881 vfbd->base.base.height = mode_cmd->height;
882 vfbd->base.dmabuf = true;
883 vfbd->buffer = vmw_dmabuf_reference(dmabuf);
884 vfbd->base.user_handle = mode_cmd->handle;
885 *out = &vfbd->base;
886
887 ret = drm_framebuffer_init(dev, &vfbd->base.base,
888 &vmw_framebuffer_dmabuf_funcs);
889 if (ret)
890 goto out_err2;
891
892 return 0;
893
894 out_err2:
895 vmw_dmabuf_unreference(&dmabuf);
896 kfree(vfbd);
897 out_err1:
898 return ret;
899 }
900
901 /**
902 * vmw_kms_new_framebuffer - Create a new framebuffer.
903 *
904 * @dev_priv: Pointer to device private struct.
905 * @dmabuf: Pointer to dma buffer to wrap the kms framebuffer around.
906 * Either @dmabuf or @surface must be NULL.
907 * @surface: Pointer to a surface to wrap the kms framebuffer around.
908 * Either @dmabuf or @surface must be NULL.
909 * @only_2d: No presents will occur to this dma buffer based framebuffer. This
910 * Helps the code to do some important optimizations.
911 * @mode_cmd: Frame-buffer metadata.
912 */
913 struct vmw_framebuffer *
914 vmw_kms_new_framebuffer(struct vmw_private *dev_priv,
915 struct vmw_dma_buffer *dmabuf,
916 struct vmw_surface *surface,
917 bool only_2d,
918 const struct drm_mode_fb_cmd *mode_cmd)
919 {
920 struct vmw_framebuffer *vfb = NULL;
921 bool is_dmabuf_proxy = false;
922 int ret;
923
924 /*
925 * We cannot use the SurfaceDMA command in an non-accelerated VM,
926 * therefore, wrap the DMA buf in a surface so we can use the
927 * SurfaceCopy command.
928 */
929 if (dmabuf && only_2d &&
930 dev_priv->active_display_unit == vmw_du_screen_target) {
931 ret = vmw_create_dmabuf_proxy(dev_priv->dev, mode_cmd,
932 dmabuf, &surface);
933 if (ret)
934 return ERR_PTR(ret);
935
936 is_dmabuf_proxy = true;
937 }
938
939 /* Create the new framebuffer depending one what we have */
940 if (surface) {
941 ret = vmw_kms_new_framebuffer_surface(dev_priv, surface, &vfb,
942 mode_cmd,
943 is_dmabuf_proxy);
944
945 /*
946 * vmw_create_dmabuf_proxy() adds a reference that is no longer
947 * needed
948 */
949 if (is_dmabuf_proxy)
950 vmw_surface_unreference(&surface);
951 } else if (dmabuf) {
952 ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, dmabuf, &vfb,
953 mode_cmd);
954 } else {
955 BUG();
956 }
957
958 if (ret)
959 return ERR_PTR(ret);
960
961 vfb->pin = vmw_framebuffer_pin;
962 vfb->unpin = vmw_framebuffer_unpin;
963
964 return vfb;
965 }
966
967 /*
968 * Generic Kernel modesetting functions
969 */
970
971 static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
972 struct drm_file *file_priv,
973 const struct drm_mode_fb_cmd2 *mode_cmd2)
974 {
975 struct vmw_private *dev_priv = vmw_priv(dev);
976 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
977 struct vmw_framebuffer *vfb = NULL;
978 struct vmw_surface *surface = NULL;
979 struct vmw_dma_buffer *bo = NULL;
980 struct ttm_base_object *user_obj;
981 struct drm_mode_fb_cmd mode_cmd;
982 int ret;
983
984 mode_cmd.width = mode_cmd2->width;
985 mode_cmd.height = mode_cmd2->height;
986 mode_cmd.pitch = mode_cmd2->pitches[0];
987 mode_cmd.handle = mode_cmd2->handles[0];
988 drm_fb_get_bpp_depth(mode_cmd2->pixel_format, &mode_cmd.depth,
989 &mode_cmd.bpp);
990
991 /**
992 * This code should be conditioned on Screen Objects not being used.
993 * If screen objects are used, we can allocate a GMR to hold the
994 * requested framebuffer.
995 */
996
997 if (!vmw_kms_validate_mode_vram(dev_priv,
998 mode_cmd.pitch,
999 mode_cmd.height)) {
1000 DRM_ERROR("Requested mode exceed bounding box limit.\n");
1001 return ERR_PTR(-ENOMEM);
1002 }
1003
1004 /*
1005 * Take a reference on the user object of the resource
1006 * backing the kms fb. This ensures that user-space handle
1007 * lookups on that resource will always work as long as
1008 * it's registered with a kms framebuffer. This is important,
1009 * since vmw_execbuf_process identifies resources in the
1010 * command stream using user-space handles.
1011 */
1012
1013 user_obj = ttm_base_object_lookup(tfile, mode_cmd.handle);
1014 if (unlikely(user_obj == NULL)) {
1015 DRM_ERROR("Could not locate requested kms frame buffer.\n");
1016 return ERR_PTR(-ENOENT);
1017 }
1018
1019 /**
1020 * End conditioned code.
1021 */
1022
1023 /* returns either a dmabuf or surface */
1024 ret = vmw_user_lookup_handle(dev_priv, tfile,
1025 mode_cmd.handle,
1026 &surface, &bo);
1027 if (ret)
1028 goto err_out;
1029
1030 vfb = vmw_kms_new_framebuffer(dev_priv, bo, surface,
1031 !(dev_priv->capabilities & SVGA_CAP_3D),
1032 &mode_cmd);
1033 if (IS_ERR(vfb)) {
1034 ret = PTR_ERR(vfb);
1035 goto err_out;
1036 }
1037
1038 err_out:
1039 /* vmw_user_lookup_handle takes one ref so does new_fb */
1040 if (bo)
1041 vmw_dmabuf_unreference(&bo);
1042 if (surface)
1043 vmw_surface_unreference(&surface);
1044
1045 if (ret) {
1046 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
1047 ttm_base_object_unref(&user_obj);
1048 return ERR_PTR(ret);
1049 } else
1050 vfb->user_obj = user_obj;
1051
1052 return &vfb->base;
1053 }
1054
1055 static const struct drm_mode_config_funcs vmw_kms_funcs = {
1056 .fb_create = vmw_kms_fb_create,
1057 };
1058
1059 static int vmw_kms_generic_present(struct vmw_private *dev_priv,
1060 struct drm_file *file_priv,
1061 struct vmw_framebuffer *vfb,
1062 struct vmw_surface *surface,
1063 uint32_t sid,
1064 int32_t destX, int32_t destY,
1065 struct drm_vmw_rect *clips,
1066 uint32_t num_clips)
1067 {
1068 return vmw_kms_sou_do_surface_dirty(dev_priv, vfb, NULL, clips,
1069 &surface->res, destX, destY,
1070 num_clips, 1, NULL);
1071 }
1072
1073
1074 int vmw_kms_present(struct vmw_private *dev_priv,
1075 struct drm_file *file_priv,
1076 struct vmw_framebuffer *vfb,
1077 struct vmw_surface *surface,
1078 uint32_t sid,
1079 int32_t destX, int32_t destY,
1080 struct drm_vmw_rect *clips,
1081 uint32_t num_clips)
1082 {
1083 int ret;
1084
1085 switch (dev_priv->active_display_unit) {
1086 case vmw_du_screen_target:
1087 ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, clips,
1088 &surface->res, destX, destY,
1089 num_clips, 1, NULL);
1090 break;
1091 case vmw_du_screen_object:
1092 ret = vmw_kms_generic_present(dev_priv, file_priv, vfb, surface,
1093 sid, destX, destY, clips,
1094 num_clips);
1095 break;
1096 default:
1097 WARN_ONCE(true,
1098 "Present called with invalid display system.\n");
1099 ret = -ENOSYS;
1100 break;
1101 }
1102 if (ret)
1103 return ret;
1104
1105 vmw_fifo_flush(dev_priv, false);
1106
1107 return 0;
1108 }
1109
1110 static void
1111 vmw_kms_create_hotplug_mode_update_property(struct vmw_private *dev_priv)
1112 {
1113 if (dev_priv->hotplug_mode_update_property)
1114 return;
1115
1116 dev_priv->hotplug_mode_update_property =
1117 drm_property_create_range(dev_priv->dev,
1118 DRM_MODE_PROP_IMMUTABLE,
1119 "hotplug_mode_update", 0, 1);
1120
1121 if (!dev_priv->hotplug_mode_update_property)
1122 return;
1123
1124 }
1125
1126 int vmw_kms_init(struct vmw_private *dev_priv)
1127 {
1128 struct drm_device *dev = dev_priv->dev;
1129 int ret;
1130
1131 drm_mode_config_init(dev);
1132 dev->mode_config.funcs = &vmw_kms_funcs;
1133 dev->mode_config.min_width = 1;
1134 dev->mode_config.min_height = 1;
1135 dev->mode_config.max_width = dev_priv->texture_max_width;
1136 dev->mode_config.max_height = dev_priv->texture_max_height;
1137
1138 drm_mode_create_suggested_offset_properties(dev);
1139 vmw_kms_create_hotplug_mode_update_property(dev_priv);
1140
1141 ret = vmw_kms_stdu_init_display(dev_priv);
1142 if (ret) {
1143 ret = vmw_kms_sou_init_display(dev_priv);
1144 if (ret) /* Fallback */
1145 ret = vmw_kms_ldu_init_display(dev_priv);
1146 }
1147
1148 return ret;
1149 }
1150
1151 int vmw_kms_close(struct vmw_private *dev_priv)
1152 {
1153 int ret;
1154
1155 /*
1156 * Docs says we should take the lock before calling this function
1157 * but since it destroys encoders and our destructor calls
1158 * drm_encoder_cleanup which takes the lock we deadlock.
1159 */
1160 drm_mode_config_cleanup(dev_priv->dev);
1161 if (dev_priv->active_display_unit == vmw_du_screen_object)
1162 ret = vmw_kms_sou_close_display(dev_priv);
1163 else if (dev_priv->active_display_unit == vmw_du_screen_target)
1164 ret = vmw_kms_stdu_close_display(dev_priv);
1165 else
1166 ret = vmw_kms_ldu_close_display(dev_priv);
1167
1168 return ret;
1169 }
1170
1171 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1172 struct drm_file *file_priv)
1173 {
1174 struct drm_vmw_cursor_bypass_arg *arg = data;
1175 struct vmw_display_unit *du;
1176 struct drm_crtc *crtc;
1177 int ret = 0;
1178
1179
1180 mutex_lock(&dev->mode_config.mutex);
1181 if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
1182
1183 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1184 du = vmw_crtc_to_du(crtc);
1185 du->hotspot_x = arg->xhot;
1186 du->hotspot_y = arg->yhot;
1187 }
1188
1189 mutex_unlock(&dev->mode_config.mutex);
1190 return 0;
1191 }
1192
1193 crtc = drm_crtc_find(dev, arg->crtc_id);
1194 if (!crtc) {
1195 ret = -ENOENT;
1196 goto out;
1197 }
1198
1199 du = vmw_crtc_to_du(crtc);
1200
1201 du->hotspot_x = arg->xhot;
1202 du->hotspot_y = arg->yhot;
1203
1204 out:
1205 mutex_unlock(&dev->mode_config.mutex);
1206
1207 return ret;
1208 }
1209
1210 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1211 unsigned width, unsigned height, unsigned pitch,
1212 unsigned bpp, unsigned depth)
1213 {
1214 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1215 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
1216 else if (vmw_fifo_have_pitchlock(vmw_priv))
1217 vmw_mmio_write(pitch, vmw_priv->mmio_virt +
1218 SVGA_FIFO_PITCHLOCK);
1219 vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
1220 vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
1221 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp);
1222
1223 if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) {
1224 DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n",
1225 depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH));
1226 return -EINVAL;
1227 }
1228
1229 return 0;
1230 }
1231
1232 int vmw_kms_save_vga(struct vmw_private *vmw_priv)
1233 {
1234 struct vmw_vga_topology_state *save;
1235 uint32_t i;
1236
1237 vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH);
1238 vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT);
1239 vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL);
1240 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1241 vmw_priv->vga_pitchlock =
1242 vmw_read(vmw_priv, SVGA_REG_PITCHLOCK);
1243 else if (vmw_fifo_have_pitchlock(vmw_priv))
1244 vmw_priv->vga_pitchlock = vmw_mmio_read(vmw_priv->mmio_virt +
1245 SVGA_FIFO_PITCHLOCK);
1246
1247 if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1248 return 0;
1249
1250 vmw_priv->num_displays = vmw_read(vmw_priv,
1251 SVGA_REG_NUM_GUEST_DISPLAYS);
1252
1253 if (vmw_priv->num_displays == 0)
1254 vmw_priv->num_displays = 1;
1255
1256 for (i = 0; i < vmw_priv->num_displays; ++i) {
1257 save = &vmw_priv->vga_save[i];
1258 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1259 save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY);
1260 save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X);
1261 save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y);
1262 save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH);
1263 save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT);
1264 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1265 if (i == 0 && vmw_priv->num_displays == 1 &&
1266 save->width == 0 && save->height == 0) {
1267
1268 /*
1269 * It should be fairly safe to assume that these
1270 * values are uninitialized.
1271 */
1272
1273 save->width = vmw_priv->vga_width - save->pos_x;
1274 save->height = vmw_priv->vga_height - save->pos_y;
1275 }
1276 }
1277
1278 return 0;
1279 }
1280
1281 int vmw_kms_restore_vga(struct vmw_private *vmw_priv)
1282 {
1283 struct vmw_vga_topology_state *save;
1284 uint32_t i;
1285
1286 vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width);
1287 vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height);
1288 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp);
1289 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1290 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK,
1291 vmw_priv->vga_pitchlock);
1292 else if (vmw_fifo_have_pitchlock(vmw_priv))
1293 vmw_mmio_write(vmw_priv->vga_pitchlock,
1294 vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1295
1296 if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1297 return 0;
1298
1299 for (i = 0; i < vmw_priv->num_displays; ++i) {
1300 save = &vmw_priv->vga_save[i];
1301 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1302 vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary);
1303 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x);
1304 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y);
1305 vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width);
1306 vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height);
1307 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1308 }
1309
1310 return 0;
1311 }
1312
1313 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1314 uint32_t pitch,
1315 uint32_t height)
1316 {
1317 return ((u64) pitch * (u64) height) < (u64)
1318 ((dev_priv->active_display_unit == vmw_du_screen_target) ?
1319 dev_priv->prim_bb_mem : dev_priv->vram_size);
1320 }
1321
1322
1323 /**
1324 * Function called by DRM code called with vbl_lock held.
1325 */
1326 u32 vmw_get_vblank_counter(struct drm_device *dev, unsigned int pipe)
1327 {
1328 return 0;
1329 }
1330
1331 /**
1332 * Function called by DRM code called with vbl_lock held.
1333 */
1334 int vmw_enable_vblank(struct drm_device *dev, unsigned int pipe)
1335 {
1336 return -ENOSYS;
1337 }
1338
1339 /**
1340 * Function called by DRM code called with vbl_lock held.
1341 */
1342 void vmw_disable_vblank(struct drm_device *dev, unsigned int pipe)
1343 {
1344 }
1345
1346
1347 /*
1348 * Small shared kms functions.
1349 */
1350
1351 static int vmw_du_update_layout(struct vmw_private *dev_priv, unsigned num,
1352 struct drm_vmw_rect *rects)
1353 {
1354 struct drm_device *dev = dev_priv->dev;
1355 struct vmw_display_unit *du;
1356 struct drm_connector *con;
1357
1358 mutex_lock(&dev->mode_config.mutex);
1359
1360 #if 0
1361 {
1362 unsigned int i;
1363
1364 DRM_INFO("%s: new layout ", __func__);
1365 for (i = 0; i < num; i++)
1366 DRM_INFO("(%i, %i %ux%u) ", rects[i].x, rects[i].y,
1367 rects[i].w, rects[i].h);
1368 DRM_INFO("\n");
1369 }
1370 #endif
1371
1372 list_for_each_entry(con, &dev->mode_config.connector_list, head) {
1373 du = vmw_connector_to_du(con);
1374 if (num > du->unit) {
1375 du->pref_width = rects[du->unit].w;
1376 du->pref_height = rects[du->unit].h;
1377 du->pref_active = true;
1378 du->gui_x = rects[du->unit].x;
1379 du->gui_y = rects[du->unit].y;
1380 drm_object_property_set_value
1381 (&con->base, dev->mode_config.suggested_x_property,
1382 du->gui_x);
1383 drm_object_property_set_value
1384 (&con->base, dev->mode_config.suggested_y_property,
1385 du->gui_y);
1386 } else {
1387 du->pref_width = 800;
1388 du->pref_height = 600;
1389 du->pref_active = false;
1390 drm_object_property_set_value
1391 (&con->base, dev->mode_config.suggested_x_property,
1392 0);
1393 drm_object_property_set_value
1394 (&con->base, dev->mode_config.suggested_y_property,
1395 0);
1396 }
1397 con->status = vmw_du_connector_detect(con, true);
1398 }
1399
1400 mutex_unlock(&dev->mode_config.mutex);
1401 drm_sysfs_hotplug_event(dev);
1402
1403 return 0;
1404 }
1405
1406 int vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
1407 u16 *r, u16 *g, u16 *b,
1408 uint32_t size)
1409 {
1410 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
1411 int i;
1412
1413 for (i = 0; i < size; i++) {
1414 DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
1415 r[i], g[i], b[i]);
1416 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
1417 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
1418 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
1419 }
1420
1421 return 0;
1422 }
1423
1424 int vmw_du_connector_dpms(struct drm_connector *connector, int mode)
1425 {
1426 return 0;
1427 }
1428
1429 enum drm_connector_status
1430 vmw_du_connector_detect(struct drm_connector *connector, bool force)
1431 {
1432 uint32_t num_displays;
1433 struct drm_device *dev = connector->dev;
1434 struct vmw_private *dev_priv = vmw_priv(dev);
1435 struct vmw_display_unit *du = vmw_connector_to_du(connector);
1436
1437 num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
1438
1439 return ((vmw_connector_to_du(connector)->unit < num_displays &&
1440 du->pref_active) ?
1441 connector_status_connected : connector_status_disconnected);
1442 }
1443
1444 static struct drm_display_mode vmw_kms_connector_builtin[] = {
1445 /* 640x480@60Hz */
1446 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
1447 752, 800, 0, 480, 489, 492, 525, 0,
1448 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1449 /* 800x600@60Hz */
1450 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
1451 968, 1056, 0, 600, 601, 605, 628, 0,
1452 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1453 /* 1024x768@60Hz */
1454 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
1455 1184, 1344, 0, 768, 771, 777, 806, 0,
1456 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1457 /* 1152x864@75Hz */
1458 { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
1459 1344, 1600, 0, 864, 865, 868, 900, 0,
1460 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1461 /* 1280x768@60Hz */
1462 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
1463 1472, 1664, 0, 768, 771, 778, 798, 0,
1464 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1465 /* 1280x800@60Hz */
1466 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
1467 1480, 1680, 0, 800, 803, 809, 831, 0,
1468 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
1469 /* 1280x960@60Hz */
1470 { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
1471 1488, 1800, 0, 960, 961, 964, 1000, 0,
1472 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1473 /* 1280x1024@60Hz */
1474 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
1475 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
1476 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1477 /* 1360x768@60Hz */
1478 { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
1479 1536, 1792, 0, 768, 771, 777, 795, 0,
1480 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1481 /* 1440x1050@60Hz */
1482 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
1483 1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
1484 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1485 /* 1440x900@60Hz */
1486 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
1487 1672, 1904, 0, 900, 903, 909, 934, 0,
1488 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1489 /* 1600x1200@60Hz */
1490 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
1491 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
1492 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1493 /* 1680x1050@60Hz */
1494 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
1495 1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
1496 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1497 /* 1792x1344@60Hz */
1498 { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
1499 2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
1500 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1501 /* 1853x1392@60Hz */
1502 { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
1503 2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
1504 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1505 /* 1920x1200@60Hz */
1506 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
1507 2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
1508 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1509 /* 1920x1440@60Hz */
1510 { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
1511 2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
1512 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1513 /* 2560x1600@60Hz */
1514 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
1515 3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
1516 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1517 /* Terminate */
1518 { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
1519 };
1520
1521 /**
1522 * vmw_guess_mode_timing - Provide fake timings for a
1523 * 60Hz vrefresh mode.
1524 *
1525 * @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay
1526 * members filled in.
1527 */
1528 void vmw_guess_mode_timing(struct drm_display_mode *mode)
1529 {
1530 mode->hsync_start = mode->hdisplay + 50;
1531 mode->hsync_end = mode->hsync_start + 50;
1532 mode->htotal = mode->hsync_end + 50;
1533
1534 mode->vsync_start = mode->vdisplay + 50;
1535 mode->vsync_end = mode->vsync_start + 50;
1536 mode->vtotal = mode->vsync_end + 50;
1537
1538 mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
1539 mode->vrefresh = drm_mode_vrefresh(mode);
1540 }
1541
1542
1543 int vmw_du_connector_fill_modes(struct drm_connector *connector,
1544 uint32_t max_width, uint32_t max_height)
1545 {
1546 struct vmw_display_unit *du = vmw_connector_to_du(connector);
1547 struct drm_device *dev = connector->dev;
1548 struct vmw_private *dev_priv = vmw_priv(dev);
1549 struct drm_display_mode *mode = NULL;
1550 struct drm_display_mode *bmode;
1551 struct drm_display_mode prefmode = { DRM_MODE("preferred",
1552 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
1553 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1554 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
1555 };
1556 int i;
1557 u32 assumed_bpp = 4;
1558
1559 if (dev_priv->assume_16bpp)
1560 assumed_bpp = 2;
1561
1562 if (dev_priv->active_display_unit == vmw_du_screen_target) {
1563 max_width = min(max_width, dev_priv->stdu_max_width);
1564 max_height = min(max_height, dev_priv->stdu_max_height);
1565 }
1566
1567 /* Add preferred mode */
1568 mode = drm_mode_duplicate(dev, &prefmode);
1569 if (!mode)
1570 return 0;
1571 mode->hdisplay = du->pref_width;
1572 mode->vdisplay = du->pref_height;
1573 vmw_guess_mode_timing(mode);
1574
1575 if (vmw_kms_validate_mode_vram(dev_priv,
1576 mode->hdisplay * assumed_bpp,
1577 mode->vdisplay)) {
1578 drm_mode_probed_add(connector, mode);
1579 } else {
1580 drm_mode_destroy(dev, mode);
1581 mode = NULL;
1582 }
1583
1584 if (du->pref_mode) {
1585 list_del_init(&du->pref_mode->head);
1586 drm_mode_destroy(dev, du->pref_mode);
1587 }
1588
1589 /* mode might be null here, this is intended */
1590 du->pref_mode = mode;
1591
1592 for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) {
1593 bmode = &vmw_kms_connector_builtin[i];
1594 if (bmode->hdisplay > max_width ||
1595 bmode->vdisplay > max_height)
1596 continue;
1597
1598 if (!vmw_kms_validate_mode_vram(dev_priv,
1599 bmode->hdisplay * assumed_bpp,
1600 bmode->vdisplay))
1601 continue;
1602
1603 mode = drm_mode_duplicate(dev, bmode);
1604 if (!mode)
1605 return 0;
1606 mode->vrefresh = drm_mode_vrefresh(mode);
1607
1608 drm_mode_probed_add(connector, mode);
1609 }
1610
1611 drm_mode_connector_list_update(connector);
1612 /* Move the prefered mode first, help apps pick the right mode. */
1613 drm_mode_sort(&connector->modes);
1614
1615 return 1;
1616 }
1617
1618 int vmw_du_connector_set_property(struct drm_connector *connector,
1619 struct drm_property *property,
1620 uint64_t val)
1621 {
1622 struct vmw_display_unit *du = vmw_connector_to_du(connector);
1623 struct vmw_private *dev_priv = vmw_priv(connector->dev);
1624
1625 if (property == dev_priv->implicit_placement_property)
1626 du->is_implicit = val;
1627
1628 return 0;
1629 }
1630
1631
1632 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
1633 struct drm_file *file_priv)
1634 {
1635 struct vmw_private *dev_priv = vmw_priv(dev);
1636 struct drm_vmw_update_layout_arg *arg =
1637 (struct drm_vmw_update_layout_arg *)data;
1638 void __user *user_rects;
1639 struct drm_vmw_rect *rects;
1640 unsigned rects_size;
1641 int ret;
1642 int i;
1643 u64 total_pixels = 0;
1644 struct drm_mode_config *mode_config = &dev->mode_config;
1645 struct drm_vmw_rect bounding_box = {0};
1646
1647 if (!arg->num_outputs) {
1648 struct drm_vmw_rect def_rect = {0, 0, 800, 600};
1649 vmw_du_update_layout(dev_priv, 1, &def_rect);
1650 return 0;
1651 }
1652
1653 rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
1654 rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect),
1655 GFP_KERNEL);
1656 if (unlikely(!rects))
1657 return -ENOMEM;
1658
1659 user_rects = (void __user *)(unsigned long)arg->rects;
1660 ret = copy_from_user(rects, user_rects, rects_size);
1661 if (unlikely(ret != 0)) {
1662 DRM_ERROR("Failed to get rects.\n");
1663 ret = -EFAULT;
1664 goto out_free;
1665 }
1666
1667 for (i = 0; i < arg->num_outputs; ++i) {
1668 if (rects[i].x < 0 ||
1669 rects[i].y < 0 ||
1670 rects[i].x + rects[i].w > mode_config->max_width ||
1671 rects[i].y + rects[i].h > mode_config->max_height) {
1672 DRM_ERROR("Invalid GUI layout.\n");
1673 ret = -EINVAL;
1674 goto out_free;
1675 }
1676
1677 /*
1678 * bounding_box.w and bunding_box.h are used as
1679 * lower-right coordinates
1680 */
1681 if (rects[i].x + rects[i].w > bounding_box.w)
1682 bounding_box.w = rects[i].x + rects[i].w;
1683
1684 if (rects[i].y + rects[i].h > bounding_box.h)
1685 bounding_box.h = rects[i].y + rects[i].h;
1686
1687 total_pixels += (u64) rects[i].w * (u64) rects[i].h;
1688 }
1689
1690 if (dev_priv->active_display_unit == vmw_du_screen_target) {
1691 /*
1692 * For Screen Targets, the limits for a toplogy are:
1693 * 1. Bounding box (assuming 32bpp) must be < prim_bb_mem
1694 * 2. Total pixels (assuming 32bpp) must be < prim_bb_mem
1695 */
1696 u64 bb_mem = bounding_box.w * bounding_box.h * 4;
1697 u64 pixel_mem = total_pixels * 4;
1698
1699 if (bb_mem > dev_priv->prim_bb_mem) {
1700 DRM_ERROR("Topology is beyond supported limits.\n");
1701 ret = -EINVAL;
1702 goto out_free;
1703 }
1704
1705 if (pixel_mem > dev_priv->prim_bb_mem) {
1706 DRM_ERROR("Combined output size too large\n");
1707 ret = -EINVAL;
1708 goto out_free;
1709 }
1710 }
1711
1712 vmw_du_update_layout(dev_priv, arg->num_outputs, rects);
1713
1714 out_free:
1715 kfree(rects);
1716 return ret;
1717 }
1718
1719 /**
1720 * vmw_kms_helper_dirty - Helper to build commands and perform actions based
1721 * on a set of cliprects and a set of display units.
1722 *
1723 * @dev_priv: Pointer to a device private structure.
1724 * @framebuffer: Pointer to the framebuffer on which to perform the actions.
1725 * @clips: A set of struct drm_clip_rect. Either this os @vclips must be NULL.
1726 * Cliprects are given in framebuffer coordinates.
1727 * @vclips: A set of struct drm_vmw_rect cliprects. Either this or @clips must
1728 * be NULL. Cliprects are given in source coordinates.
1729 * @dest_x: X coordinate offset for the crtc / destination clip rects.
1730 * @dest_y: Y coordinate offset for the crtc / destination clip rects.
1731 * @num_clips: Number of cliprects in the @clips or @vclips array.
1732 * @increment: Integer with which to increment the clip counter when looping.
1733 * Used to skip a predetermined number of clip rects.
1734 * @dirty: Closure structure. See the description of struct vmw_kms_dirty.
1735 */
1736 int vmw_kms_helper_dirty(struct vmw_private *dev_priv,
1737 struct vmw_framebuffer *framebuffer,
1738 const struct drm_clip_rect *clips,
1739 const struct drm_vmw_rect *vclips,
1740 s32 dest_x, s32 dest_y,
1741 int num_clips,
1742 int increment,
1743 struct vmw_kms_dirty *dirty)
1744 {
1745 struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
1746 struct drm_crtc *crtc;
1747 u32 num_units = 0;
1748 u32 i, k;
1749
1750 dirty->dev_priv = dev_priv;
1751
1752 list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1753 if (crtc->primary->fb != &framebuffer->base)
1754 continue;
1755 units[num_units++] = vmw_crtc_to_du(crtc);
1756 }
1757
1758 for (k = 0; k < num_units; k++) {
1759 struct vmw_display_unit *unit = units[k];
1760 s32 crtc_x = unit->crtc.x;
1761 s32 crtc_y = unit->crtc.y;
1762 s32 crtc_width = unit->crtc.mode.hdisplay;
1763 s32 crtc_height = unit->crtc.mode.vdisplay;
1764 const struct drm_clip_rect *clips_ptr = clips;
1765 const struct drm_vmw_rect *vclips_ptr = vclips;
1766
1767 dirty->unit = unit;
1768 if (dirty->fifo_reserve_size > 0) {
1769 dirty->cmd = vmw_fifo_reserve(dev_priv,
1770 dirty->fifo_reserve_size);
1771 if (!dirty->cmd) {
1772 DRM_ERROR("Couldn't reserve fifo space "
1773 "for dirty blits.\n");
1774 return -ENOMEM;
1775 }
1776 memset(dirty->cmd, 0, dirty->fifo_reserve_size);
1777 }
1778 dirty->num_hits = 0;
1779 for (i = 0; i < num_clips; i++, clips_ptr += increment,
1780 vclips_ptr += increment) {
1781 s32 clip_left;
1782 s32 clip_top;
1783
1784 /*
1785 * Select clip array type. Note that integer type
1786 * in @clips is unsigned short, whereas in @vclips
1787 * it's 32-bit.
1788 */
1789 if (clips) {
1790 dirty->fb_x = (s32) clips_ptr->x1;
1791 dirty->fb_y = (s32) clips_ptr->y1;
1792 dirty->unit_x2 = (s32) clips_ptr->x2 + dest_x -
1793 crtc_x;
1794 dirty->unit_y2 = (s32) clips_ptr->y2 + dest_y -
1795 crtc_y;
1796 } else {
1797 dirty->fb_x = vclips_ptr->x;
1798 dirty->fb_y = vclips_ptr->y;
1799 dirty->unit_x2 = dirty->fb_x + vclips_ptr->w +
1800 dest_x - crtc_x;
1801 dirty->unit_y2 = dirty->fb_y + vclips_ptr->h +
1802 dest_y - crtc_y;
1803 }
1804
1805 dirty->unit_x1 = dirty->fb_x + dest_x - crtc_x;
1806 dirty->unit_y1 = dirty->fb_y + dest_y - crtc_y;
1807
1808 /* Skip this clip if it's outside the crtc region */
1809 if (dirty->unit_x1 >= crtc_width ||
1810 dirty->unit_y1 >= crtc_height ||
1811 dirty->unit_x2 <= 0 || dirty->unit_y2 <= 0)
1812 continue;
1813
1814 /* Clip right and bottom to crtc limits */
1815 dirty->unit_x2 = min_t(s32, dirty->unit_x2,
1816 crtc_width);
1817 dirty->unit_y2 = min_t(s32, dirty->unit_y2,
1818 crtc_height);
1819
1820 /* Clip left and top to crtc limits */
1821 clip_left = min_t(s32, dirty->unit_x1, 0);
1822 clip_top = min_t(s32, dirty->unit_y1, 0);
1823 dirty->unit_x1 -= clip_left;
1824 dirty->unit_y1 -= clip_top;
1825 dirty->fb_x -= clip_left;
1826 dirty->fb_y -= clip_top;
1827
1828 dirty->clip(dirty);
1829 }
1830
1831 dirty->fifo_commit(dirty);
1832 }
1833
1834 return 0;
1835 }
1836
1837 /**
1838 * vmw_kms_helper_buffer_prepare - Reserve and validate a buffer object before
1839 * command submission.
1840 *
1841 * @dev_priv. Pointer to a device private structure.
1842 * @buf: The buffer object
1843 * @interruptible: Whether to perform waits as interruptible.
1844 * @validate_as_mob: Whether the buffer should be validated as a MOB. If false,
1845 * The buffer will be validated as a GMR. Already pinned buffers will not be
1846 * validated.
1847 *
1848 * Returns 0 on success, negative error code on failure, -ERESTARTSYS if
1849 * interrupted by a signal.
1850 */
1851 int vmw_kms_helper_buffer_prepare(struct vmw_private *dev_priv,
1852 struct vmw_dma_buffer *buf,
1853 bool interruptible,
1854 bool validate_as_mob)
1855 {
1856 struct ttm_buffer_object *bo = &buf->base;
1857 int ret;
1858
1859 ttm_bo_reserve(bo, false, false, NULL);
1860 ret = vmw_validate_single_buffer(dev_priv, bo, interruptible,
1861 validate_as_mob);
1862 if (ret)
1863 ttm_bo_unreserve(bo);
1864
1865 return ret;
1866 }
1867
1868 /**
1869 * vmw_kms_helper_buffer_revert - Undo the actions of
1870 * vmw_kms_helper_buffer_prepare.
1871 *
1872 * @res: Pointer to the buffer object.
1873 *
1874 * Helper to be used if an error forces the caller to undo the actions of
1875 * vmw_kms_helper_buffer_prepare.
1876 */
1877 void vmw_kms_helper_buffer_revert(struct vmw_dma_buffer *buf)
1878 {
1879 if (buf)
1880 ttm_bo_unreserve(&buf->base);
1881 }
1882
1883 /**
1884 * vmw_kms_helper_buffer_finish - Unreserve and fence a buffer object after
1885 * kms command submission.
1886 *
1887 * @dev_priv: Pointer to a device private structure.
1888 * @file_priv: Pointer to a struct drm_file representing the caller's
1889 * connection. Must be set to NULL if @user_fence_rep is NULL, and conversely
1890 * if non-NULL, @user_fence_rep must be non-NULL.
1891 * @buf: The buffer object.
1892 * @out_fence: Optional pointer to a fence pointer. If non-NULL, a
1893 * ref-counted fence pointer is returned here.
1894 * @user_fence_rep: Optional pointer to a user-space provided struct
1895 * drm_vmw_fence_rep. If provided, @file_priv must also be provided and the
1896 * function copies fence data to user-space in a fail-safe manner.
1897 */
1898 void vmw_kms_helper_buffer_finish(struct vmw_private *dev_priv,
1899 struct drm_file *file_priv,
1900 struct vmw_dma_buffer *buf,
1901 struct vmw_fence_obj **out_fence,
1902 struct drm_vmw_fence_rep __user *
1903 user_fence_rep)
1904 {
1905 struct vmw_fence_obj *fence;
1906 uint32_t handle;
1907 int ret;
1908
1909 ret = vmw_execbuf_fence_commands(file_priv, dev_priv, &fence,
1910 file_priv ? &handle : NULL);
1911 if (buf)
1912 vmw_fence_single_bo(&buf->base, fence);
1913 if (file_priv)
1914 vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv),
1915 ret, user_fence_rep, fence,
1916 handle);
1917 if (out_fence)
1918 *out_fence = fence;
1919 else
1920 vmw_fence_obj_unreference(&fence);
1921
1922 vmw_kms_helper_buffer_revert(buf);
1923 }
1924
1925
1926 /**
1927 * vmw_kms_helper_resource_revert - Undo the actions of
1928 * vmw_kms_helper_resource_prepare.
1929 *
1930 * @res: Pointer to the resource. Typically a surface.
1931 *
1932 * Helper to be used if an error forces the caller to undo the actions of
1933 * vmw_kms_helper_resource_prepare.
1934 */
1935 void vmw_kms_helper_resource_revert(struct vmw_validation_ctx *ctx)
1936 {
1937 struct vmw_resource *res = ctx->res;
1938
1939 vmw_kms_helper_buffer_revert(ctx->buf);
1940 vmw_dmabuf_unreference(&ctx->buf);
1941 vmw_resource_unreserve(res, false, NULL, 0);
1942 mutex_unlock(&res->dev_priv->cmdbuf_mutex);
1943 }
1944
1945 /**
1946 * vmw_kms_helper_resource_prepare - Reserve and validate a resource before
1947 * command submission.
1948 *
1949 * @res: Pointer to the resource. Typically a surface.
1950 * @interruptible: Whether to perform waits as interruptible.
1951 *
1952 * Reserves and validates also the backup buffer if a guest-backed resource.
1953 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
1954 * interrupted by a signal.
1955 */
1956 int vmw_kms_helper_resource_prepare(struct vmw_resource *res,
1957 bool interruptible,
1958 struct vmw_validation_ctx *ctx)
1959 {
1960 int ret = 0;
1961
1962 ctx->buf = NULL;
1963 ctx->res = res;
1964
1965 if (interruptible)
1966 ret = mutex_lock_interruptible(&res->dev_priv->cmdbuf_mutex);
1967 else
1968 mutex_lock(&res->dev_priv->cmdbuf_mutex);
1969
1970 if (unlikely(ret != 0))
1971 return -ERESTARTSYS;
1972
1973 ret = vmw_resource_reserve(res, interruptible, false);
1974 if (ret)
1975 goto out_unlock;
1976
1977 if (res->backup) {
1978 ret = vmw_kms_helper_buffer_prepare(res->dev_priv, res->backup,
1979 interruptible,
1980 res->dev_priv->has_mob);
1981 if (ret)
1982 goto out_unreserve;
1983
1984 ctx->buf = vmw_dmabuf_reference(res->backup);
1985 }
1986 ret = vmw_resource_validate(res);
1987 if (ret)
1988 goto out_revert;
1989 return 0;
1990
1991 out_revert:
1992 vmw_kms_helper_buffer_revert(ctx->buf);
1993 out_unreserve:
1994 vmw_resource_unreserve(res, false, NULL, 0);
1995 out_unlock:
1996 mutex_unlock(&res->dev_priv->cmdbuf_mutex);
1997 return ret;
1998 }
1999
2000 /**
2001 * vmw_kms_helper_resource_finish - Unreserve and fence a resource after
2002 * kms command submission.
2003 *
2004 * @res: Pointer to the resource. Typically a surface.
2005 * @out_fence: Optional pointer to a fence pointer. If non-NULL, a
2006 * ref-counted fence pointer is returned here.
2007 */
2008 void vmw_kms_helper_resource_finish(struct vmw_validation_ctx *ctx,
2009 struct vmw_fence_obj **out_fence)
2010 {
2011 struct vmw_resource *res = ctx->res;
2012
2013 if (ctx->buf || out_fence)
2014 vmw_kms_helper_buffer_finish(res->dev_priv, NULL, ctx->buf,
2015 out_fence, NULL);
2016
2017 vmw_dmabuf_unreference(&ctx->buf);
2018 vmw_resource_unreserve(res, false, NULL, 0);
2019 mutex_unlock(&res->dev_priv->cmdbuf_mutex);
2020 }
2021
2022 /**
2023 * vmw_kms_update_proxy - Helper function to update a proxy surface from
2024 * its backing MOB.
2025 *
2026 * @res: Pointer to the surface resource
2027 * @clips: Clip rects in framebuffer (surface) space.
2028 * @num_clips: Number of clips in @clips.
2029 * @increment: Integer with which to increment the clip counter when looping.
2030 * Used to skip a predetermined number of clip rects.
2031 *
2032 * This function makes sure the proxy surface is updated from its backing MOB
2033 * using the region given by @clips. The surface resource @res and its backing
2034 * MOB needs to be reserved and validated on call.
2035 */
2036 int vmw_kms_update_proxy(struct vmw_resource *res,
2037 const struct drm_clip_rect *clips,
2038 unsigned num_clips,
2039 int increment)
2040 {
2041 struct vmw_private *dev_priv = res->dev_priv;
2042 struct drm_vmw_size *size = &vmw_res_to_srf(res)->base_size;
2043 struct {
2044 SVGA3dCmdHeader header;
2045 SVGA3dCmdUpdateGBImage body;
2046 } *cmd;
2047 SVGA3dBox *box;
2048 size_t copy_size = 0;
2049 int i;
2050
2051 if (!clips)
2052 return 0;
2053
2054 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd) * num_clips);
2055 if (!cmd) {
2056 DRM_ERROR("Couldn't reserve fifo space for proxy surface "
2057 "update.\n");
2058 return -ENOMEM;
2059 }
2060
2061 for (i = 0; i < num_clips; ++i, clips += increment, ++cmd) {
2062 box = &cmd->body.box;
2063
2064 cmd->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE;
2065 cmd->header.size = sizeof(cmd->body);
2066 cmd->body.image.sid = res->id;
2067 cmd->body.image.face = 0;
2068 cmd->body.image.mipmap = 0;
2069
2070 if (clips->x1 > size->width || clips->x2 > size->width ||
2071 clips->y1 > size->height || clips->y2 > size->height) {
2072 DRM_ERROR("Invalid clips outsize of framebuffer.\n");
2073 return -EINVAL;
2074 }
2075
2076 box->x = clips->x1;
2077 box->y = clips->y1;
2078 box->z = 0;
2079 box->w = clips->x2 - clips->x1;
2080 box->h = clips->y2 - clips->y1;
2081 box->d = 1;
2082
2083 copy_size += sizeof(*cmd);
2084 }
2085
2086 vmw_fifo_commit(dev_priv, copy_size);
2087
2088 return 0;
2089 }
2090
2091 int vmw_kms_fbdev_init_data(struct vmw_private *dev_priv,
2092 unsigned unit,
2093 u32 max_width,
2094 u32 max_height,
2095 struct drm_connector **p_con,
2096 struct drm_crtc **p_crtc,
2097 struct drm_display_mode **p_mode)
2098 {
2099 struct drm_connector *con;
2100 struct vmw_display_unit *du;
2101 struct drm_display_mode *mode;
2102 int i = 0;
2103
2104 list_for_each_entry(con, &dev_priv->dev->mode_config.connector_list,
2105 head) {
2106 if (i == unit)
2107 break;
2108
2109 ++i;
2110 }
2111
2112 if (i != unit) {
2113 DRM_ERROR("Could not find initial display unit.\n");
2114 return -EINVAL;
2115 }
2116
2117 if (list_empty(&con->modes))
2118 (void) vmw_du_connector_fill_modes(con, max_width, max_height);
2119
2120 if (list_empty(&con->modes)) {
2121 DRM_ERROR("Could not find initial display mode.\n");
2122 return -EINVAL;
2123 }
2124
2125 du = vmw_connector_to_du(con);
2126 *p_con = con;
2127 *p_crtc = &du->crtc;
2128
2129 list_for_each_entry(mode, &con->modes, head) {
2130 if (mode->type & DRM_MODE_TYPE_PREFERRED)
2131 break;
2132 }
2133
2134 if (mode->type & DRM_MODE_TYPE_PREFERRED)
2135 *p_mode = mode;
2136 else {
2137 WARN_ONCE(true, "Could not find initial preferred mode.\n");
2138 *p_mode = list_first_entry(&con->modes,
2139 struct drm_display_mode,
2140 head);
2141 }
2142
2143 return 0;
2144 }
2145
2146 /**
2147 * vmw_kms_del_active - unregister a crtc binding to the implicit framebuffer
2148 *
2149 * @dev_priv: Pointer to a device private struct.
2150 * @du: The display unit of the crtc.
2151 */
2152 void vmw_kms_del_active(struct vmw_private *dev_priv,
2153 struct vmw_display_unit *du)
2154 {
2155 mutex_lock(&dev_priv->global_kms_state_mutex);
2156 if (du->active_implicit) {
2157 if (--(dev_priv->num_implicit) == 0)
2158 dev_priv->implicit_fb = NULL;
2159 du->active_implicit = false;
2160 }
2161 mutex_unlock(&dev_priv->global_kms_state_mutex);
2162 }
2163
2164 /**
2165 * vmw_kms_add_active - register a crtc binding to an implicit framebuffer
2166 *
2167 * @vmw_priv: Pointer to a device private struct.
2168 * @du: The display unit of the crtc.
2169 * @vfb: The implicit framebuffer
2170 *
2171 * Registers a binding to an implicit framebuffer.
2172 */
2173 void vmw_kms_add_active(struct vmw_private *dev_priv,
2174 struct vmw_display_unit *du,
2175 struct vmw_framebuffer *vfb)
2176 {
2177 mutex_lock(&dev_priv->global_kms_state_mutex);
2178 WARN_ON_ONCE(!dev_priv->num_implicit && dev_priv->implicit_fb);
2179
2180 if (!du->active_implicit && du->is_implicit) {
2181 dev_priv->implicit_fb = vfb;
2182 du->active_implicit = true;
2183 dev_priv->num_implicit++;
2184 }
2185 mutex_unlock(&dev_priv->global_kms_state_mutex);
2186 }
2187
2188 /**
2189 * vmw_kms_screen_object_flippable - Check whether we can page-flip a crtc.
2190 *
2191 * @dev_priv: Pointer to device-private struct.
2192 * @crtc: The crtc we want to flip.
2193 *
2194 * Returns true or false depending whether it's OK to flip this crtc
2195 * based on the criterion that we must not have more than one implicit
2196 * frame-buffer at any one time.
2197 */
2198 bool vmw_kms_crtc_flippable(struct vmw_private *dev_priv,
2199 struct drm_crtc *crtc)
2200 {
2201 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
2202 bool ret;
2203
2204 mutex_lock(&dev_priv->global_kms_state_mutex);
2205 ret = !du->is_implicit || dev_priv->num_implicit == 1;
2206 mutex_unlock(&dev_priv->global_kms_state_mutex);
2207
2208 return ret;
2209 }
2210
2211 /**
2212 * vmw_kms_update_implicit_fb - Update the implicit fb.
2213 *
2214 * @dev_priv: Pointer to device-private struct.
2215 * @crtc: The crtc the new implicit frame-buffer is bound to.
2216 */
2217 void vmw_kms_update_implicit_fb(struct vmw_private *dev_priv,
2218 struct drm_crtc *crtc)
2219 {
2220 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
2221 struct vmw_framebuffer *vfb;
2222
2223 mutex_lock(&dev_priv->global_kms_state_mutex);
2224
2225 if (!du->is_implicit)
2226 goto out_unlock;
2227
2228 vfb = vmw_framebuffer_to_vfb(crtc->primary->fb);
2229 WARN_ON_ONCE(dev_priv->num_implicit != 1 &&
2230 dev_priv->implicit_fb != vfb);
2231
2232 dev_priv->implicit_fb = vfb;
2233 out_unlock:
2234 mutex_unlock(&dev_priv->global_kms_state_mutex);
2235 }
2236
2237 /**
2238 * vmw_kms_create_implicit_placement_proparty - Set up the implicit placement
2239 * property.
2240 *
2241 * @dev_priv: Pointer to a device private struct.
2242 * @immutable: Whether the property is immutable.
2243 *
2244 * Sets up the implicit placement property unless it's already set up.
2245 */
2246 void
2247 vmw_kms_create_implicit_placement_property(struct vmw_private *dev_priv,
2248 bool immutable)
2249 {
2250 if (dev_priv->implicit_placement_property)
2251 return;
2252
2253 dev_priv->implicit_placement_property =
2254 drm_property_create_range(dev_priv->dev,
2255 immutable ?
2256 DRM_MODE_PROP_IMMUTABLE : 0,
2257 "implicit_placement", 0, 1);
2258
2259 }
Linux with added FPC-III support