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HID: sony: Remove the size check for the Dualshock 4 HID Descriptor
[mirror_ubuntu-artful-kernel.git] / drivers / gpu / drm / vmwgfx / vmwgfx_kms.c
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
31 /* Might need a hrtimer here? */
32 #define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1)
33
34 void vmw_du_cleanup(struct vmw_display_unit *du)
35 {
36 if (du->cursor_surface)
37 vmw_surface_unreference(&du->cursor_surface);
38 if (du->cursor_dmabuf)
39 vmw_dmabuf_unreference(&du->cursor_dmabuf);
40 drm_connector_unregister(&du->connector);
41 drm_crtc_cleanup(&du->crtc);
42 drm_encoder_cleanup(&du->encoder);
43 drm_connector_cleanup(&du->connector);
44 }
45
46 /*
47 * Display Unit Cursor functions
48 */
49
50 int vmw_cursor_update_image(struct vmw_private *dev_priv,
51 u32 *image, u32 width, u32 height,
52 u32 hotspotX, u32 hotspotY)
53 {
54 struct {
55 u32 cmd;
56 SVGAFifoCmdDefineAlphaCursor cursor;
57 } *cmd;
58 u32 image_size = width * height * 4;
59 u32 cmd_size = sizeof(*cmd) + image_size;
60
61 if (!image)
62 return -EINVAL;
63
64 cmd = vmw_fifo_reserve(dev_priv, cmd_size);
65 if (unlikely(cmd == NULL)) {
66 DRM_ERROR("Fifo reserve failed.\n");
67 return -ENOMEM;
68 }
69
70 memset(cmd, 0, sizeof(*cmd));
71
72 memcpy(&cmd[1], image, image_size);
73
74 cmd->cmd = SVGA_CMD_DEFINE_ALPHA_CURSOR;
75 cmd->cursor.id = 0;
76 cmd->cursor.width = width;
77 cmd->cursor.height = height;
78 cmd->cursor.hotspotX = hotspotX;
79 cmd->cursor.hotspotY = hotspotY;
80
81 vmw_fifo_commit(dev_priv, cmd_size);
82
83 return 0;
84 }
85
86 int vmw_cursor_update_dmabuf(struct vmw_private *dev_priv,
87 struct vmw_dma_buffer *dmabuf,
88 u32 width, u32 height,
89 u32 hotspotX, u32 hotspotY)
90 {
91 struct ttm_bo_kmap_obj map;
92 unsigned long kmap_offset;
93 unsigned long kmap_num;
94 void *virtual;
95 bool dummy;
96 int ret;
97
98 kmap_offset = 0;
99 kmap_num = (width*height*4 + PAGE_SIZE - 1) >> PAGE_SHIFT;
100
101 ret = ttm_bo_reserve(&dmabuf->base, true, false, false, NULL);
102 if (unlikely(ret != 0)) {
103 DRM_ERROR("reserve failed\n");
104 return -EINVAL;
105 }
106
107 ret = ttm_bo_kmap(&dmabuf->base, kmap_offset, kmap_num, &map);
108 if (unlikely(ret != 0))
109 goto err_unreserve;
110
111 virtual = ttm_kmap_obj_virtual(&map, &dummy);
112 ret = vmw_cursor_update_image(dev_priv, virtual, width, height,
113 hotspotX, hotspotY);
114
115 ttm_bo_kunmap(&map);
116 err_unreserve:
117 ttm_bo_unreserve(&dmabuf->base);
118
119 return ret;
120 }
121
122
123 void vmw_cursor_update_position(struct vmw_private *dev_priv,
124 bool show, int x, int y)
125 {
126 u32 __iomem *fifo_mem = dev_priv->mmio_virt;
127 uint32_t count;
128
129 iowrite32(show ? 1 : 0, fifo_mem + SVGA_FIFO_CURSOR_ON);
130 iowrite32(x, fifo_mem + SVGA_FIFO_CURSOR_X);
131 iowrite32(y, fifo_mem + SVGA_FIFO_CURSOR_Y);
132 count = ioread32(fifo_mem + SVGA_FIFO_CURSOR_COUNT);
133 iowrite32(++count, fifo_mem + SVGA_FIFO_CURSOR_COUNT);
134 }
135
136 int vmw_du_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
137 uint32_t handle, uint32_t width, uint32_t height)
138 {
139 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
140 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
141 struct vmw_surface *surface = NULL;
142 struct vmw_dma_buffer *dmabuf = NULL;
143 int ret;
144
145 /*
146 * FIXME: Unclear whether there's any global state touched by the
147 * cursor_set function, especially vmw_cursor_update_position looks
148 * suspicious. For now take the easy route and reacquire all locks. We
149 * can do this since the caller in the drm core doesn't check anything
150 * which is protected by any looks.
151 */
152 drm_modeset_unlock_crtc(crtc);
153 drm_modeset_lock_all(dev_priv->dev);
154
155 /* A lot of the code assumes this */
156 if (handle && (width != 64 || height != 64)) {
157 ret = -EINVAL;
158 goto out;
159 }
160
161 if (handle) {
162 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
163
164 ret = vmw_user_lookup_handle(dev_priv, tfile,
165 handle, &surface, &dmabuf);
166 if (ret) {
167 DRM_ERROR("failed to find surface or dmabuf: %i\n", ret);
168 ret = -EINVAL;
169 goto out;
170 }
171 }
172
173 /* need to do this before taking down old image */
174 if (surface && !surface->snooper.image) {
175 DRM_ERROR("surface not suitable for cursor\n");
176 vmw_surface_unreference(&surface);
177 ret = -EINVAL;
178 goto out;
179 }
180
181 /* takedown old cursor */
182 if (du->cursor_surface) {
183 du->cursor_surface->snooper.crtc = NULL;
184 vmw_surface_unreference(&du->cursor_surface);
185 }
186 if (du->cursor_dmabuf)
187 vmw_dmabuf_unreference(&du->cursor_dmabuf);
188
189 /* setup new image */
190 if (surface) {
191 /* vmw_user_surface_lookup takes one reference */
192 du->cursor_surface = surface;
193
194 du->cursor_surface->snooper.crtc = crtc;
195 du->cursor_age = du->cursor_surface->snooper.age;
196 vmw_cursor_update_image(dev_priv, surface->snooper.image,
197 64, 64, du->hotspot_x, du->hotspot_y);
198 } else if (dmabuf) {
199 /* vmw_user_surface_lookup takes one reference */
200 du->cursor_dmabuf = dmabuf;
201
202 ret = vmw_cursor_update_dmabuf(dev_priv, dmabuf, width, height,
203 du->hotspot_x, du->hotspot_y);
204 } else {
205 vmw_cursor_update_position(dev_priv, false, 0, 0);
206 ret = 0;
207 goto out;
208 }
209
210 vmw_cursor_update_position(dev_priv, true,
211 du->cursor_x + du->hotspot_x,
212 du->cursor_y + du->hotspot_y);
213
214 ret = 0;
215 out:
216 drm_modeset_unlock_all(dev_priv->dev);
217 drm_modeset_lock_crtc(crtc, crtc->cursor);
218
219 return ret;
220 }
221
222 int vmw_du_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
223 {
224 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
225 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
226 bool shown = du->cursor_surface || du->cursor_dmabuf ? true : false;
227
228 du->cursor_x = x + crtc->x;
229 du->cursor_y = y + crtc->y;
230
231 /*
232 * FIXME: Unclear whether there's any global state touched by the
233 * cursor_set function, especially vmw_cursor_update_position looks
234 * suspicious. For now take the easy route and reacquire all locks. We
235 * can do this since the caller in the drm core doesn't check anything
236 * which is protected by any looks.
237 */
238 drm_modeset_unlock_crtc(crtc);
239 drm_modeset_lock_all(dev_priv->dev);
240
241 vmw_cursor_update_position(dev_priv, shown,
242 du->cursor_x + du->hotspot_x,
243 du->cursor_y + du->hotspot_y);
244
245 drm_modeset_unlock_all(dev_priv->dev);
246 drm_modeset_lock_crtc(crtc, crtc->cursor);
247
248 return 0;
249 }
250
251 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
252 struct ttm_object_file *tfile,
253 struct ttm_buffer_object *bo,
254 SVGA3dCmdHeader *header)
255 {
256 struct ttm_bo_kmap_obj map;
257 unsigned long kmap_offset;
258 unsigned long kmap_num;
259 SVGA3dCopyBox *box;
260 unsigned box_count;
261 void *virtual;
262 bool dummy;
263 struct vmw_dma_cmd {
264 SVGA3dCmdHeader header;
265 SVGA3dCmdSurfaceDMA dma;
266 } *cmd;
267 int i, ret;
268
269 cmd = container_of(header, struct vmw_dma_cmd, header);
270
271 /* No snooper installed */
272 if (!srf->snooper.image)
273 return;
274
275 if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
276 DRM_ERROR("face and mipmap for cursors should never != 0\n");
277 return;
278 }
279
280 if (cmd->header.size < 64) {
281 DRM_ERROR("at least one full copy box must be given\n");
282 return;
283 }
284
285 box = (SVGA3dCopyBox *)&cmd[1];
286 box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
287 sizeof(SVGA3dCopyBox);
288
289 if (cmd->dma.guest.ptr.offset % PAGE_SIZE ||
290 box->x != 0 || box->y != 0 || box->z != 0 ||
291 box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
292 box->d != 1 || box_count != 1) {
293 /* TODO handle none page aligned offsets */
294 /* TODO handle more dst & src != 0 */
295 /* TODO handle more then one copy */
296 DRM_ERROR("Cant snoop dma request for cursor!\n");
297 DRM_ERROR("(%u, %u, %u) (%u, %u, %u) (%ux%ux%u) %u %u\n",
298 box->srcx, box->srcy, box->srcz,
299 box->x, box->y, box->z,
300 box->w, box->h, box->d, box_count,
301 cmd->dma.guest.ptr.offset);
302 return;
303 }
304
305 kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
306 kmap_num = (64*64*4) >> PAGE_SHIFT;
307
308 ret = ttm_bo_reserve(bo, true, false, false, NULL);
309 if (unlikely(ret != 0)) {
310 DRM_ERROR("reserve failed\n");
311 return;
312 }
313
314 ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
315 if (unlikely(ret != 0))
316 goto err_unreserve;
317
318 virtual = ttm_kmap_obj_virtual(&map, &dummy);
319
320 if (box->w == 64 && cmd->dma.guest.pitch == 64*4) {
321 memcpy(srf->snooper.image, virtual, 64*64*4);
322 } else {
323 /* Image is unsigned pointer. */
324 for (i = 0; i < box->h; i++)
325 memcpy(srf->snooper.image + i * 64,
326 virtual + i * cmd->dma.guest.pitch,
327 box->w * 4);
328 }
329
330 srf->snooper.age++;
331
332 ttm_bo_kunmap(&map);
333 err_unreserve:
334 ttm_bo_unreserve(bo);
335 }
336
337 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
338 {
339 struct drm_device *dev = dev_priv->dev;
340 struct vmw_display_unit *du;
341 struct drm_crtc *crtc;
342
343 mutex_lock(&dev->mode_config.mutex);
344
345 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
346 du = vmw_crtc_to_du(crtc);
347 if (!du->cursor_surface ||
348 du->cursor_age == du->cursor_surface->snooper.age)
349 continue;
350
351 du->cursor_age = du->cursor_surface->snooper.age;
352 vmw_cursor_update_image(dev_priv,
353 du->cursor_surface->snooper.image,
354 64, 64, du->hotspot_x, du->hotspot_y);
355 }
356
357 mutex_unlock(&dev->mode_config.mutex);
358 }
359
360 /*
361 * Generic framebuffer code
362 */
363
364 /*
365 * Surface framebuffer code
366 */
367
368 static void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
369 {
370 struct vmw_framebuffer_surface *vfbs =
371 vmw_framebuffer_to_vfbs(framebuffer);
372
373 drm_framebuffer_cleanup(framebuffer);
374 vmw_surface_unreference(&vfbs->surface);
375 if (vfbs->base.user_obj)
376 ttm_base_object_unref(&vfbs->base.user_obj);
377
378 kfree(vfbs);
379 }
380
381 static int vmw_framebuffer_surface_dirty(struct drm_framebuffer *framebuffer,
382 struct drm_file *file_priv,
383 unsigned flags, unsigned color,
384 struct drm_clip_rect *clips,
385 unsigned num_clips)
386 {
387 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
388 struct vmw_framebuffer_surface *vfbs =
389 vmw_framebuffer_to_vfbs(framebuffer);
390 struct drm_clip_rect norect;
391 int ret, inc = 1;
392
393 /* Legacy Display Unit does not support 3D */
394 if (dev_priv->active_display_unit == vmw_du_legacy)
395 return -EINVAL;
396
397 drm_modeset_lock_all(dev_priv->dev);
398
399 ret = ttm_read_lock(&dev_priv->reservation_sem, true);
400 if (unlikely(ret != 0)) {
401 drm_modeset_unlock_all(dev_priv->dev);
402 return ret;
403 }
404
405 if (!num_clips) {
406 num_clips = 1;
407 clips = &norect;
408 norect.x1 = norect.y1 = 0;
409 norect.x2 = framebuffer->width;
410 norect.y2 = framebuffer->height;
411 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
412 num_clips /= 2;
413 inc = 2; /* skip source rects */
414 }
415
416 if (dev_priv->active_display_unit == vmw_du_screen_object)
417 ret = vmw_kms_sou_do_surface_dirty(dev_priv, &vfbs->base,
418 clips, NULL, NULL, 0, 0,
419 num_clips, inc, NULL);
420 else
421 ret = vmw_kms_stdu_surface_dirty(dev_priv, &vfbs->base,
422 clips, NULL, NULL, 0, 0,
423 num_clips, inc, NULL);
424
425 vmw_fifo_flush(dev_priv, false);
426 ttm_read_unlock(&dev_priv->reservation_sem);
427
428 drm_modeset_unlock_all(dev_priv->dev);
429
430 return 0;
431 }
432
433 /**
434 * vmw_kms_readback - Perform a readback from the screen system to
435 * a dma-buffer backed framebuffer.
436 *
437 * @dev_priv: Pointer to the device private structure.
438 * @file_priv: Pointer to a struct drm_file identifying the caller.
439 * Must be set to NULL if @user_fence_rep is NULL.
440 * @vfb: Pointer to the dma-buffer backed framebuffer.
441 * @user_fence_rep: User-space provided structure for fence information.
442 * Must be set to non-NULL if @file_priv is non-NULL.
443 * @vclips: Array of clip rects.
444 * @num_clips: Number of clip rects in @vclips.
445 *
446 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
447 * interrupted.
448 */
449 int vmw_kms_readback(struct vmw_private *dev_priv,
450 struct drm_file *file_priv,
451 struct vmw_framebuffer *vfb,
452 struct drm_vmw_fence_rep __user *user_fence_rep,
453 struct drm_vmw_rect *vclips,
454 uint32_t num_clips)
455 {
456 switch (dev_priv->active_display_unit) {
457 case vmw_du_screen_object:
458 return vmw_kms_sou_readback(dev_priv, file_priv, vfb,
459 user_fence_rep, vclips, num_clips);
460 case vmw_du_screen_target:
461 return vmw_kms_stdu_dma(dev_priv, file_priv, vfb,
462 user_fence_rep, NULL, vclips, num_clips,
463 1, false, true);
464 default:
465 WARN_ONCE(true,
466 "Readback called with invalid display system.\n");
467 }
468
469 return -ENOSYS;
470 }
471
472
473 static struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
474 .destroy = vmw_framebuffer_surface_destroy,
475 .dirty = vmw_framebuffer_surface_dirty,
476 };
477
478 static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
479 struct vmw_surface *surface,
480 struct vmw_framebuffer **out,
481 const struct drm_mode_fb_cmd
482 *mode_cmd,
483 bool is_dmabuf_proxy)
484
485 {
486 struct drm_device *dev = dev_priv->dev;
487 struct vmw_framebuffer_surface *vfbs;
488 enum SVGA3dSurfaceFormat format;
489 int ret;
490
491 /* 3D is only supported on HWv8 and newer hosts */
492 if (dev_priv->active_display_unit == vmw_du_legacy)
493 return -ENOSYS;
494
495 /*
496 * Sanity checks.
497 */
498
499 /* Surface must be marked as a scanout. */
500 if (unlikely(!surface->scanout))
501 return -EINVAL;
502
503 if (unlikely(surface->mip_levels[0] != 1 ||
504 surface->num_sizes != 1 ||
505 surface->base_size.width < mode_cmd->width ||
506 surface->base_size.height < mode_cmd->height ||
507 surface->base_size.depth != 1)) {
508 DRM_ERROR("Incompatible surface dimensions "
509 "for requested mode.\n");
510 return -EINVAL;
511 }
512
513 switch (mode_cmd->depth) {
514 case 32:
515 format = SVGA3D_A8R8G8B8;
516 break;
517 case 24:
518 format = SVGA3D_X8R8G8B8;
519 break;
520 case 16:
521 format = SVGA3D_R5G6B5;
522 break;
523 case 15:
524 format = SVGA3D_A1R5G5B5;
525 break;
526 default:
527 DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
528 return -EINVAL;
529 }
530
531 /*
532 * For DX, surface format validation is done when surface->scanout
533 * is set.
534 */
535 if (!dev_priv->has_dx && format != surface->format) {
536 DRM_ERROR("Invalid surface format for requested mode.\n");
537 return -EINVAL;
538 }
539
540 vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
541 if (!vfbs) {
542 ret = -ENOMEM;
543 goto out_err1;
544 }
545
546 /* XXX get the first 3 from the surface info */
547 vfbs->base.base.bits_per_pixel = mode_cmd->bpp;
548 vfbs->base.base.pitches[0] = mode_cmd->pitch;
549 vfbs->base.base.depth = mode_cmd->depth;
550 vfbs->base.base.width = mode_cmd->width;
551 vfbs->base.base.height = mode_cmd->height;
552 vfbs->surface = vmw_surface_reference(surface);
553 vfbs->base.user_handle = mode_cmd->handle;
554 vfbs->is_dmabuf_proxy = is_dmabuf_proxy;
555
556 *out = &vfbs->base;
557
558 ret = drm_framebuffer_init(dev, &vfbs->base.base,
559 &vmw_framebuffer_surface_funcs);
560 if (ret)
561 goto out_err2;
562
563 return 0;
564
565 out_err2:
566 vmw_surface_unreference(&surface);
567 kfree(vfbs);
568 out_err1:
569 return ret;
570 }
571
572 /*
573 * Dmabuf framebuffer code
574 */
575
576 static void vmw_framebuffer_dmabuf_destroy(struct drm_framebuffer *framebuffer)
577 {
578 struct vmw_framebuffer_dmabuf *vfbd =
579 vmw_framebuffer_to_vfbd(framebuffer);
580
581 drm_framebuffer_cleanup(framebuffer);
582 vmw_dmabuf_unreference(&vfbd->buffer);
583 if (vfbd->base.user_obj)
584 ttm_base_object_unref(&vfbd->base.user_obj);
585
586 kfree(vfbd);
587 }
588
589 static int vmw_framebuffer_dmabuf_dirty(struct drm_framebuffer *framebuffer,
590 struct drm_file *file_priv,
591 unsigned flags, unsigned color,
592 struct drm_clip_rect *clips,
593 unsigned num_clips)
594 {
595 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
596 struct vmw_framebuffer_dmabuf *vfbd =
597 vmw_framebuffer_to_vfbd(framebuffer);
598 struct drm_clip_rect norect;
599 int ret, increment = 1;
600
601 drm_modeset_lock_all(dev_priv->dev);
602
603 ret = ttm_read_lock(&dev_priv->reservation_sem, true);
604 if (unlikely(ret != 0)) {
605 drm_modeset_unlock_all(dev_priv->dev);
606 return ret;
607 }
608
609 if (!num_clips) {
610 num_clips = 1;
611 clips = &norect;
612 norect.x1 = norect.y1 = 0;
613 norect.x2 = framebuffer->width;
614 norect.y2 = framebuffer->height;
615 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
616 num_clips /= 2;
617 increment = 2;
618 }
619
620 switch (dev_priv->active_display_unit) {
621 case vmw_du_screen_target:
622 ret = vmw_kms_stdu_dma(dev_priv, NULL, &vfbd->base, NULL,
623 clips, NULL, num_clips, increment,
624 true, true);
625 break;
626 case vmw_du_screen_object:
627 ret = vmw_kms_sou_do_dmabuf_dirty(dev_priv, &vfbd->base,
628 clips, num_clips, increment,
629 true,
630 NULL);
631 break;
632 case vmw_du_legacy:
633 ret = vmw_kms_ldu_do_dmabuf_dirty(dev_priv, &vfbd->base, 0, 0,
634 clips, num_clips, increment);
635 break;
636 default:
637 ret = -EINVAL;
638 WARN_ONCE(true, "Dirty called with invalid display system.\n");
639 break;
640 }
641
642 vmw_fifo_flush(dev_priv, false);
643 ttm_read_unlock(&dev_priv->reservation_sem);
644
645 drm_modeset_unlock_all(dev_priv->dev);
646
647 return ret;
648 }
649
650 static struct drm_framebuffer_funcs vmw_framebuffer_dmabuf_funcs = {
651 .destroy = vmw_framebuffer_dmabuf_destroy,
652 .dirty = vmw_framebuffer_dmabuf_dirty,
653 };
654
655 /**
656 * Pin the dmabuffer to the start of vram.
657 */
658 static int vmw_framebuffer_pin(struct vmw_framebuffer *vfb)
659 {
660 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
661 struct vmw_dma_buffer *buf;
662 int ret;
663
664 buf = vfb->dmabuf ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer :
665 vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup;
666
667 if (!buf)
668 return 0;
669
670 switch (dev_priv->active_display_unit) {
671 case vmw_du_legacy:
672 vmw_overlay_pause_all(dev_priv);
673 ret = vmw_dmabuf_pin_in_start_of_vram(dev_priv, buf, false);
674 vmw_overlay_resume_all(dev_priv);
675 break;
676 case vmw_du_screen_object:
677 case vmw_du_screen_target:
678 if (vfb->dmabuf)
679 return vmw_dmabuf_pin_in_vram_or_gmr(dev_priv, buf,
680 false);
681
682 return vmw_dmabuf_pin_in_placement(dev_priv, buf,
683 &vmw_mob_placement, false);
684 default:
685 return -EINVAL;
686 }
687
688 return ret;
689 }
690
691 static int vmw_framebuffer_unpin(struct vmw_framebuffer *vfb)
692 {
693 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
694 struct vmw_dma_buffer *buf;
695
696 buf = vfb->dmabuf ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer :
697 vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup;
698
699 if (WARN_ON(!buf))
700 return 0;
701
702 return vmw_dmabuf_unpin(dev_priv, buf, false);
703 }
704
705 /**
706 * vmw_create_dmabuf_proxy - create a proxy surface for the DMA buf
707 *
708 * @dev: DRM device
709 * @mode_cmd: parameters for the new surface
710 * @dmabuf_mob: MOB backing the DMA buf
711 * @srf_out: newly created surface
712 *
713 * When the content FB is a DMA buf, we create a surface as a proxy to the
714 * same buffer. This way we can do a surface copy rather than a surface DMA.
715 * This is a more efficient approach
716 *
717 * RETURNS:
718 * 0 on success, error code otherwise
719 */
720 static int vmw_create_dmabuf_proxy(struct drm_device *dev,
721 const struct drm_mode_fb_cmd *mode_cmd,
722 struct vmw_dma_buffer *dmabuf_mob,
723 struct vmw_surface **srf_out)
724 {
725 uint32_t format;
726 struct drm_vmw_size content_base_size;
727 struct vmw_resource *res;
728 int ret;
729
730 switch (mode_cmd->depth) {
731 case 32:
732 case 24:
733 format = SVGA3D_X8R8G8B8;
734 break;
735
736 case 16:
737 case 15:
738 format = SVGA3D_R5G6B5;
739 break;
740
741 case 8:
742 format = SVGA3D_P8;
743 break;
744
745 default:
746 DRM_ERROR("Invalid framebuffer format %d\n", mode_cmd->depth);
747 return -EINVAL;
748 }
749
750 content_base_size.width = mode_cmd->width;
751 content_base_size.height = mode_cmd->height;
752 content_base_size.depth = 1;
753
754 ret = vmw_surface_gb_priv_define(dev,
755 0, /* kernel visible only */
756 0, /* flags */
757 format,
758 true, /* can be a scanout buffer */
759 1, /* num of mip levels */
760 0,
761 0,
762 content_base_size,
763 srf_out);
764 if (ret) {
765 DRM_ERROR("Failed to allocate proxy content buffer\n");
766 return ret;
767 }
768
769 res = &(*srf_out)->res;
770
771 /* Reserve and switch the backing mob. */
772 mutex_lock(&res->dev_priv->cmdbuf_mutex);
773 (void) vmw_resource_reserve(res, false, true);
774 vmw_dmabuf_unreference(&res->backup);
775 res->backup = vmw_dmabuf_reference(dmabuf_mob);
776 res->backup_offset = 0;
777 vmw_resource_unreserve(res, false, NULL, 0);
778 mutex_unlock(&res->dev_priv->cmdbuf_mutex);
779
780 return 0;
781 }
782
783
784
785 static int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv,
786 struct vmw_dma_buffer *dmabuf,
787 struct vmw_framebuffer **out,
788 const struct drm_mode_fb_cmd
789 *mode_cmd)
790
791 {
792 struct drm_device *dev = dev_priv->dev;
793 struct vmw_framebuffer_dmabuf *vfbd;
794 unsigned int requested_size;
795 int ret;
796
797 requested_size = mode_cmd->height * mode_cmd->pitch;
798 if (unlikely(requested_size > dmabuf->base.num_pages * PAGE_SIZE)) {
799 DRM_ERROR("Screen buffer object size is too small "
800 "for requested mode.\n");
801 return -EINVAL;
802 }
803
804 /* Limited framebuffer color depth support for screen objects */
805 if (dev_priv->active_display_unit == vmw_du_screen_object) {
806 switch (mode_cmd->depth) {
807 case 32:
808 case 24:
809 /* Only support 32 bpp for 32 and 24 depth fbs */
810 if (mode_cmd->bpp == 32)
811 break;
812
813 DRM_ERROR("Invalid color depth/bbp: %d %d\n",
814 mode_cmd->depth, mode_cmd->bpp);
815 return -EINVAL;
816 case 16:
817 case 15:
818 /* Only support 16 bpp for 16 and 15 depth fbs */
819 if (mode_cmd->bpp == 16)
820 break;
821
822 DRM_ERROR("Invalid color depth/bbp: %d %d\n",
823 mode_cmd->depth, mode_cmd->bpp);
824 return -EINVAL;
825 default:
826 DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
827 return -EINVAL;
828 }
829 }
830
831 vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
832 if (!vfbd) {
833 ret = -ENOMEM;
834 goto out_err1;
835 }
836
837 vfbd->base.base.bits_per_pixel = mode_cmd->bpp;
838 vfbd->base.base.pitches[0] = mode_cmd->pitch;
839 vfbd->base.base.depth = mode_cmd->depth;
840 vfbd->base.base.width = mode_cmd->width;
841 vfbd->base.base.height = mode_cmd->height;
842 vfbd->base.dmabuf = true;
843 vfbd->buffer = vmw_dmabuf_reference(dmabuf);
844 vfbd->base.user_handle = mode_cmd->handle;
845 *out = &vfbd->base;
846
847 ret = drm_framebuffer_init(dev, &vfbd->base.base,
848 &vmw_framebuffer_dmabuf_funcs);
849 if (ret)
850 goto out_err2;
851
852 return 0;
853
854 out_err2:
855 vmw_dmabuf_unreference(&dmabuf);
856 kfree(vfbd);
857 out_err1:
858 return ret;
859 }
860
861 /**
862 * vmw_kms_new_framebuffer - Create a new framebuffer.
863 *
864 * @dev_priv: Pointer to device private struct.
865 * @dmabuf: Pointer to dma buffer to wrap the kms framebuffer around.
866 * Either @dmabuf or @surface must be NULL.
867 * @surface: Pointer to a surface to wrap the kms framebuffer around.
868 * Either @dmabuf or @surface must be NULL.
869 * @only_2d: No presents will occur to this dma buffer based framebuffer. This
870 * Helps the code to do some important optimizations.
871 * @mode_cmd: Frame-buffer metadata.
872 */
873 struct vmw_framebuffer *
874 vmw_kms_new_framebuffer(struct vmw_private *dev_priv,
875 struct vmw_dma_buffer *dmabuf,
876 struct vmw_surface *surface,
877 bool only_2d,
878 const struct drm_mode_fb_cmd *mode_cmd)
879 {
880 struct vmw_framebuffer *vfb = NULL;
881 bool is_dmabuf_proxy = false;
882 int ret;
883
884 /*
885 * We cannot use the SurfaceDMA command in an non-accelerated VM,
886 * therefore, wrap the DMA buf in a surface so we can use the
887 * SurfaceCopy command.
888 */
889 if (dmabuf && only_2d &&
890 dev_priv->active_display_unit == vmw_du_screen_target) {
891 ret = vmw_create_dmabuf_proxy(dev_priv->dev, mode_cmd,
892 dmabuf, &surface);
893 if (ret)
894 return ERR_PTR(ret);
895
896 is_dmabuf_proxy = true;
897 }
898
899 /* Create the new framebuffer depending one what we have */
900 if (surface) {
901 ret = vmw_kms_new_framebuffer_surface(dev_priv, surface, &vfb,
902 mode_cmd,
903 is_dmabuf_proxy);
904
905 /*
906 * vmw_create_dmabuf_proxy() adds a reference that is no longer
907 * needed
908 */
909 if (is_dmabuf_proxy)
910 vmw_surface_unreference(&surface);
911 } else if (dmabuf) {
912 ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, dmabuf, &vfb,
913 mode_cmd);
914 } else {
915 BUG();
916 }
917
918 if (ret)
919 return ERR_PTR(ret);
920
921 vfb->pin = vmw_framebuffer_pin;
922 vfb->unpin = vmw_framebuffer_unpin;
923
924 return vfb;
925 }
926
927 /*
928 * Generic Kernel modesetting functions
929 */
930
931 static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
932 struct drm_file *file_priv,
933 struct drm_mode_fb_cmd2 *mode_cmd2)
934 {
935 struct vmw_private *dev_priv = vmw_priv(dev);
936 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
937 struct vmw_framebuffer *vfb = NULL;
938 struct vmw_surface *surface = NULL;
939 struct vmw_dma_buffer *bo = NULL;
940 struct ttm_base_object *user_obj;
941 struct drm_mode_fb_cmd mode_cmd;
942 int ret;
943
944 mode_cmd.width = mode_cmd2->width;
945 mode_cmd.height = mode_cmd2->height;
946 mode_cmd.pitch = mode_cmd2->pitches[0];
947 mode_cmd.handle = mode_cmd2->handles[0];
948 drm_fb_get_bpp_depth(mode_cmd2->pixel_format, &mode_cmd.depth,
949 &mode_cmd.bpp);
950
951 /**
952 * This code should be conditioned on Screen Objects not being used.
953 * If screen objects are used, we can allocate a GMR to hold the
954 * requested framebuffer.
955 */
956
957 if (!vmw_kms_validate_mode_vram(dev_priv,
958 mode_cmd.pitch,
959 mode_cmd.height)) {
960 DRM_ERROR("Requested mode exceed bounding box limit.\n");
961 return ERR_PTR(-ENOMEM);
962 }
963
964 /*
965 * Take a reference on the user object of the resource
966 * backing the kms fb. This ensures that user-space handle
967 * lookups on that resource will always work as long as
968 * it's registered with a kms framebuffer. This is important,
969 * since vmw_execbuf_process identifies resources in the
970 * command stream using user-space handles.
971 */
972
973 user_obj = ttm_base_object_lookup(tfile, mode_cmd.handle);
974 if (unlikely(user_obj == NULL)) {
975 DRM_ERROR("Could not locate requested kms frame buffer.\n");
976 return ERR_PTR(-ENOENT);
977 }
978
979 /**
980 * End conditioned code.
981 */
982
983 /* returns either a dmabuf or surface */
984 ret = vmw_user_lookup_handle(dev_priv, tfile,
985 mode_cmd.handle,
986 &surface, &bo);
987 if (ret)
988 goto err_out;
989
990 vfb = vmw_kms_new_framebuffer(dev_priv, bo, surface,
991 !(dev_priv->capabilities & SVGA_CAP_3D),
992 &mode_cmd);
993 if (IS_ERR(vfb)) {
994 ret = PTR_ERR(vfb);
995 goto err_out;
996 }
997
998 err_out:
999 /* vmw_user_lookup_handle takes one ref so does new_fb */
1000 if (bo)
1001 vmw_dmabuf_unreference(&bo);
1002 if (surface)
1003 vmw_surface_unreference(&surface);
1004
1005 if (ret) {
1006 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
1007 ttm_base_object_unref(&user_obj);
1008 return ERR_PTR(ret);
1009 } else
1010 vfb->user_obj = user_obj;
1011
1012 return &vfb->base;
1013 }
1014
1015 static const struct drm_mode_config_funcs vmw_kms_funcs = {
1016 .fb_create = vmw_kms_fb_create,
1017 };
1018
1019 static int vmw_kms_generic_present(struct vmw_private *dev_priv,
1020 struct drm_file *file_priv,
1021 struct vmw_framebuffer *vfb,
1022 struct vmw_surface *surface,
1023 uint32_t sid,
1024 int32_t destX, int32_t destY,
1025 struct drm_vmw_rect *clips,
1026 uint32_t num_clips)
1027 {
1028 return vmw_kms_sou_do_surface_dirty(dev_priv, vfb, NULL, clips,
1029 &surface->res, destX, destY,
1030 num_clips, 1, NULL);
1031 }
1032
1033
1034 int vmw_kms_present(struct vmw_private *dev_priv,
1035 struct drm_file *file_priv,
1036 struct vmw_framebuffer *vfb,
1037 struct vmw_surface *surface,
1038 uint32_t sid,
1039 int32_t destX, int32_t destY,
1040 struct drm_vmw_rect *clips,
1041 uint32_t num_clips)
1042 {
1043 int ret;
1044
1045 switch (dev_priv->active_display_unit) {
1046 case vmw_du_screen_target:
1047 ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, clips,
1048 &surface->res, destX, destY,
1049 num_clips, 1, NULL);
1050 break;
1051 case vmw_du_screen_object:
1052 ret = vmw_kms_generic_present(dev_priv, file_priv, vfb, surface,
1053 sid, destX, destY, clips,
1054 num_clips);
1055 break;
1056 default:
1057 WARN_ONCE(true,
1058 "Present called with invalid display system.\n");
1059 ret = -ENOSYS;
1060 break;
1061 }
1062 if (ret)
1063 return ret;
1064
1065 vmw_fifo_flush(dev_priv, false);
1066
1067 return 0;
1068 }
1069
1070 int vmw_kms_init(struct vmw_private *dev_priv)
1071 {
1072 struct drm_device *dev = dev_priv->dev;
1073 int ret;
1074
1075 drm_mode_config_init(dev);
1076 dev->mode_config.funcs = &vmw_kms_funcs;
1077 dev->mode_config.min_width = 1;
1078 dev->mode_config.min_height = 1;
1079 dev->mode_config.max_width = dev_priv->texture_max_width;
1080 dev->mode_config.max_height = dev_priv->texture_max_height;
1081
1082 ret = vmw_kms_stdu_init_display(dev_priv);
1083 if (ret) {
1084 ret = vmw_kms_sou_init_display(dev_priv);
1085 if (ret) /* Fallback */
1086 ret = vmw_kms_ldu_init_display(dev_priv);
1087 }
1088
1089 return ret;
1090 }
1091
1092 int vmw_kms_close(struct vmw_private *dev_priv)
1093 {
1094 int ret;
1095
1096 /*
1097 * Docs says we should take the lock before calling this function
1098 * but since it destroys encoders and our destructor calls
1099 * drm_encoder_cleanup which takes the lock we deadlock.
1100 */
1101 drm_mode_config_cleanup(dev_priv->dev);
1102 if (dev_priv->active_display_unit == vmw_du_screen_object)
1103 ret = vmw_kms_sou_close_display(dev_priv);
1104 else if (dev_priv->active_display_unit == vmw_du_screen_target)
1105 ret = vmw_kms_stdu_close_display(dev_priv);
1106 else
1107 ret = vmw_kms_ldu_close_display(dev_priv);
1108
1109 return ret;
1110 }
1111
1112 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1113 struct drm_file *file_priv)
1114 {
1115 struct drm_vmw_cursor_bypass_arg *arg = data;
1116 struct vmw_display_unit *du;
1117 struct drm_crtc *crtc;
1118 int ret = 0;
1119
1120
1121 mutex_lock(&dev->mode_config.mutex);
1122 if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
1123
1124 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1125 du = vmw_crtc_to_du(crtc);
1126 du->hotspot_x = arg->xhot;
1127 du->hotspot_y = arg->yhot;
1128 }
1129
1130 mutex_unlock(&dev->mode_config.mutex);
1131 return 0;
1132 }
1133
1134 crtc = drm_crtc_find(dev, arg->crtc_id);
1135 if (!crtc) {
1136 ret = -ENOENT;
1137 goto out;
1138 }
1139
1140 du = vmw_crtc_to_du(crtc);
1141
1142 du->hotspot_x = arg->xhot;
1143 du->hotspot_y = arg->yhot;
1144
1145 out:
1146 mutex_unlock(&dev->mode_config.mutex);
1147
1148 return ret;
1149 }
1150
1151 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1152 unsigned width, unsigned height, unsigned pitch,
1153 unsigned bpp, unsigned depth)
1154 {
1155 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1156 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
1157 else if (vmw_fifo_have_pitchlock(vmw_priv))
1158 iowrite32(pitch, vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1159 vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
1160 vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
1161 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp);
1162
1163 if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) {
1164 DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n",
1165 depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH));
1166 return -EINVAL;
1167 }
1168
1169 return 0;
1170 }
1171
1172 int vmw_kms_save_vga(struct vmw_private *vmw_priv)
1173 {
1174 struct vmw_vga_topology_state *save;
1175 uint32_t i;
1176
1177 vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH);
1178 vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT);
1179 vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL);
1180 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1181 vmw_priv->vga_pitchlock =
1182 vmw_read(vmw_priv, SVGA_REG_PITCHLOCK);
1183 else if (vmw_fifo_have_pitchlock(vmw_priv))
1184 vmw_priv->vga_pitchlock = ioread32(vmw_priv->mmio_virt +
1185 SVGA_FIFO_PITCHLOCK);
1186
1187 if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1188 return 0;
1189
1190 vmw_priv->num_displays = vmw_read(vmw_priv,
1191 SVGA_REG_NUM_GUEST_DISPLAYS);
1192
1193 if (vmw_priv->num_displays == 0)
1194 vmw_priv->num_displays = 1;
1195
1196 for (i = 0; i < vmw_priv->num_displays; ++i) {
1197 save = &vmw_priv->vga_save[i];
1198 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1199 save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY);
1200 save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X);
1201 save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y);
1202 save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH);
1203 save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT);
1204 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1205 if (i == 0 && vmw_priv->num_displays == 1 &&
1206 save->width == 0 && save->height == 0) {
1207
1208 /*
1209 * It should be fairly safe to assume that these
1210 * values are uninitialized.
1211 */
1212
1213 save->width = vmw_priv->vga_width - save->pos_x;
1214 save->height = vmw_priv->vga_height - save->pos_y;
1215 }
1216 }
1217
1218 return 0;
1219 }
1220
1221 int vmw_kms_restore_vga(struct vmw_private *vmw_priv)
1222 {
1223 struct vmw_vga_topology_state *save;
1224 uint32_t i;
1225
1226 vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width);
1227 vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height);
1228 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp);
1229 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1230 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK,
1231 vmw_priv->vga_pitchlock);
1232 else if (vmw_fifo_have_pitchlock(vmw_priv))
1233 iowrite32(vmw_priv->vga_pitchlock,
1234 vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1235
1236 if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1237 return 0;
1238
1239 for (i = 0; i < vmw_priv->num_displays; ++i) {
1240 save = &vmw_priv->vga_save[i];
1241 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1242 vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary);
1243 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x);
1244 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y);
1245 vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width);
1246 vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height);
1247 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1248 }
1249
1250 return 0;
1251 }
1252
1253 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1254 uint32_t pitch,
1255 uint32_t height)
1256 {
1257 return ((u64) pitch * (u64) height) < (u64)
1258 ((dev_priv->active_display_unit == vmw_du_screen_target) ?
1259 dev_priv->prim_bb_mem : dev_priv->vram_size);
1260 }
1261
1262
1263 /**
1264 * Function called by DRM code called with vbl_lock held.
1265 */
1266 u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc)
1267 {
1268 return 0;
1269 }
1270
1271 /**
1272 * Function called by DRM code called with vbl_lock held.
1273 */
1274 int vmw_enable_vblank(struct drm_device *dev, int crtc)
1275 {
1276 return -ENOSYS;
1277 }
1278
1279 /**
1280 * Function called by DRM code called with vbl_lock held.
1281 */
1282 void vmw_disable_vblank(struct drm_device *dev, int crtc)
1283 {
1284 }
1285
1286
1287 /*
1288 * Small shared kms functions.
1289 */
1290
1291 static int vmw_du_update_layout(struct vmw_private *dev_priv, unsigned num,
1292 struct drm_vmw_rect *rects)
1293 {
1294 struct drm_device *dev = dev_priv->dev;
1295 struct vmw_display_unit *du;
1296 struct drm_connector *con;
1297
1298 mutex_lock(&dev->mode_config.mutex);
1299
1300 #if 0
1301 {
1302 unsigned int i;
1303
1304 DRM_INFO("%s: new layout ", __func__);
1305 for (i = 0; i < num; i++)
1306 DRM_INFO("(%i, %i %ux%u) ", rects[i].x, rects[i].y,
1307 rects[i].w, rects[i].h);
1308 DRM_INFO("\n");
1309 }
1310 #endif
1311
1312 list_for_each_entry(con, &dev->mode_config.connector_list, head) {
1313 du = vmw_connector_to_du(con);
1314 if (num > du->unit) {
1315 du->pref_width = rects[du->unit].w;
1316 du->pref_height = rects[du->unit].h;
1317 du->pref_active = true;
1318 du->gui_x = rects[du->unit].x;
1319 du->gui_y = rects[du->unit].y;
1320 } else {
1321 du->pref_width = 800;
1322 du->pref_height = 600;
1323 du->pref_active = false;
1324 }
1325 con->status = vmw_du_connector_detect(con, true);
1326 }
1327
1328 mutex_unlock(&dev->mode_config.mutex);
1329
1330 return 0;
1331 }
1332
1333 void vmw_du_crtc_save(struct drm_crtc *crtc)
1334 {
1335 }
1336
1337 void vmw_du_crtc_restore(struct drm_crtc *crtc)
1338 {
1339 }
1340
1341 void vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
1342 u16 *r, u16 *g, u16 *b,
1343 uint32_t start, uint32_t size)
1344 {
1345 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
1346 int i;
1347
1348 for (i = 0; i < size; i++) {
1349 DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
1350 r[i], g[i], b[i]);
1351 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
1352 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
1353 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
1354 }
1355 }
1356
1357 int vmw_du_connector_dpms(struct drm_connector *connector, int mode)
1358 {
1359 return 0;
1360 }
1361
1362 void vmw_du_connector_save(struct drm_connector *connector)
1363 {
1364 }
1365
1366 void vmw_du_connector_restore(struct drm_connector *connector)
1367 {
1368 }
1369
1370 enum drm_connector_status
1371 vmw_du_connector_detect(struct drm_connector *connector, bool force)
1372 {
1373 uint32_t num_displays;
1374 struct drm_device *dev = connector->dev;
1375 struct vmw_private *dev_priv = vmw_priv(dev);
1376 struct vmw_display_unit *du = vmw_connector_to_du(connector);
1377
1378 num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
1379
1380 return ((vmw_connector_to_du(connector)->unit < num_displays &&
1381 du->pref_active) ?
1382 connector_status_connected : connector_status_disconnected);
1383 }
1384
1385 static struct drm_display_mode vmw_kms_connector_builtin[] = {
1386 /* 640x480@60Hz */
1387 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
1388 752, 800, 0, 480, 489, 492, 525, 0,
1389 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1390 /* 800x600@60Hz */
1391 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
1392 968, 1056, 0, 600, 601, 605, 628, 0,
1393 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1394 /* 1024x768@60Hz */
1395 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
1396 1184, 1344, 0, 768, 771, 777, 806, 0,
1397 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1398 /* 1152x864@75Hz */
1399 { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
1400 1344, 1600, 0, 864, 865, 868, 900, 0,
1401 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1402 /* 1280x768@60Hz */
1403 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
1404 1472, 1664, 0, 768, 771, 778, 798, 0,
1405 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1406 /* 1280x800@60Hz */
1407 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
1408 1480, 1680, 0, 800, 803, 809, 831, 0,
1409 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
1410 /* 1280x960@60Hz */
1411 { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
1412 1488, 1800, 0, 960, 961, 964, 1000, 0,
1413 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1414 /* 1280x1024@60Hz */
1415 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
1416 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
1417 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1418 /* 1360x768@60Hz */
1419 { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
1420 1536, 1792, 0, 768, 771, 777, 795, 0,
1421 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1422 /* 1440x1050@60Hz */
1423 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
1424 1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
1425 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1426 /* 1440x900@60Hz */
1427 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
1428 1672, 1904, 0, 900, 903, 909, 934, 0,
1429 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1430 /* 1600x1200@60Hz */
1431 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
1432 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
1433 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1434 /* 1680x1050@60Hz */
1435 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
1436 1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
1437 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1438 /* 1792x1344@60Hz */
1439 { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
1440 2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
1441 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1442 /* 1853x1392@60Hz */
1443 { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
1444 2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
1445 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1446 /* 1920x1200@60Hz */
1447 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
1448 2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
1449 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1450 /* 1920x1440@60Hz */
1451 { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
1452 2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
1453 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1454 /* 2560x1600@60Hz */
1455 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
1456 3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
1457 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1458 /* Terminate */
1459 { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
1460 };
1461
1462 /**
1463 * vmw_guess_mode_timing - Provide fake timings for a
1464 * 60Hz vrefresh mode.
1465 *
1466 * @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay
1467 * members filled in.
1468 */
1469 void vmw_guess_mode_timing(struct drm_display_mode *mode)
1470 {
1471 mode->hsync_start = mode->hdisplay + 50;
1472 mode->hsync_end = mode->hsync_start + 50;
1473 mode->htotal = mode->hsync_end + 50;
1474
1475 mode->vsync_start = mode->vdisplay + 50;
1476 mode->vsync_end = mode->vsync_start + 50;
1477 mode->vtotal = mode->vsync_end + 50;
1478
1479 mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
1480 mode->vrefresh = drm_mode_vrefresh(mode);
1481 }
1482
1483
1484 int vmw_du_connector_fill_modes(struct drm_connector *connector,
1485 uint32_t max_width, uint32_t max_height)
1486 {
1487 struct vmw_display_unit *du = vmw_connector_to_du(connector);
1488 struct drm_device *dev = connector->dev;
1489 struct vmw_private *dev_priv = vmw_priv(dev);
1490 struct drm_display_mode *mode = NULL;
1491 struct drm_display_mode *bmode;
1492 struct drm_display_mode prefmode = { DRM_MODE("preferred",
1493 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
1494 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1495 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
1496 };
1497 int i;
1498 u32 assumed_bpp = 2;
1499
1500 /*
1501 * If using screen objects, then assume 32-bpp because that's what the
1502 * SVGA device is assuming
1503 */
1504 if (dev_priv->active_display_unit == vmw_du_screen_object)
1505 assumed_bpp = 4;
1506
1507 if (dev_priv->active_display_unit == vmw_du_screen_target) {
1508 max_width = min(max_width, dev_priv->stdu_max_width);
1509 max_height = min(max_height, dev_priv->stdu_max_height);
1510 }
1511
1512 /* Add preferred mode */
1513 mode = drm_mode_duplicate(dev, &prefmode);
1514 if (!mode)
1515 return 0;
1516 mode->hdisplay = du->pref_width;
1517 mode->vdisplay = du->pref_height;
1518 vmw_guess_mode_timing(mode);
1519
1520 if (vmw_kms_validate_mode_vram(dev_priv,
1521 mode->hdisplay * assumed_bpp,
1522 mode->vdisplay)) {
1523 drm_mode_probed_add(connector, mode);
1524 } else {
1525 drm_mode_destroy(dev, mode);
1526 mode = NULL;
1527 }
1528
1529 if (du->pref_mode) {
1530 list_del_init(&du->pref_mode->head);
1531 drm_mode_destroy(dev, du->pref_mode);
1532 }
1533
1534 /* mode might be null here, this is intended */
1535 du->pref_mode = mode;
1536
1537 for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) {
1538 bmode = &vmw_kms_connector_builtin[i];
1539 if (bmode->hdisplay > max_width ||
1540 bmode->vdisplay > max_height)
1541 continue;
1542
1543 if (!vmw_kms_validate_mode_vram(dev_priv,
1544 bmode->hdisplay * assumed_bpp,
1545 bmode->vdisplay))
1546 continue;
1547
1548 mode = drm_mode_duplicate(dev, bmode);
1549 if (!mode)
1550 return 0;
1551 mode->vrefresh = drm_mode_vrefresh(mode);
1552
1553 drm_mode_probed_add(connector, mode);
1554 }
1555
1556 drm_mode_connector_list_update(connector, true);
1557 /* Move the prefered mode first, help apps pick the right mode. */
1558 drm_mode_sort(&connector->modes);
1559
1560 return 1;
1561 }
1562
1563 int vmw_du_connector_set_property(struct drm_connector *connector,
1564 struct drm_property *property,
1565 uint64_t val)
1566 {
1567 return 0;
1568 }
1569
1570
1571 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
1572 struct drm_file *file_priv)
1573 {
1574 struct vmw_private *dev_priv = vmw_priv(dev);
1575 struct drm_vmw_update_layout_arg *arg =
1576 (struct drm_vmw_update_layout_arg *)data;
1577 void __user *user_rects;
1578 struct drm_vmw_rect *rects;
1579 unsigned rects_size;
1580 int ret;
1581 int i;
1582 u64 total_pixels = 0;
1583 struct drm_mode_config *mode_config = &dev->mode_config;
1584 struct drm_vmw_rect bounding_box = {0};
1585
1586 if (!arg->num_outputs) {
1587 struct drm_vmw_rect def_rect = {0, 0, 800, 600};
1588 vmw_du_update_layout(dev_priv, 1, &def_rect);
1589 return 0;
1590 }
1591
1592 rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
1593 rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect),
1594 GFP_KERNEL);
1595 if (unlikely(!rects))
1596 return -ENOMEM;
1597
1598 user_rects = (void __user *)(unsigned long)arg->rects;
1599 ret = copy_from_user(rects, user_rects, rects_size);
1600 if (unlikely(ret != 0)) {
1601 DRM_ERROR("Failed to get rects.\n");
1602 ret = -EFAULT;
1603 goto out_free;
1604 }
1605
1606 for (i = 0; i < arg->num_outputs; ++i) {
1607 if (rects[i].x < 0 ||
1608 rects[i].y < 0 ||
1609 rects[i].x + rects[i].w > mode_config->max_width ||
1610 rects[i].y + rects[i].h > mode_config->max_height) {
1611 DRM_ERROR("Invalid GUI layout.\n");
1612 ret = -EINVAL;
1613 goto out_free;
1614 }
1615
1616 /*
1617 * bounding_box.w and bunding_box.h are used as
1618 * lower-right coordinates
1619 */
1620 if (rects[i].x + rects[i].w > bounding_box.w)
1621 bounding_box.w = rects[i].x + rects[i].w;
1622
1623 if (rects[i].y + rects[i].h > bounding_box.h)
1624 bounding_box.h = rects[i].y + rects[i].h;
1625
1626 total_pixels += (u64) rects[i].w * (u64) rects[i].h;
1627 }
1628
1629 if (dev_priv->active_display_unit == vmw_du_screen_target) {
1630 /*
1631 * For Screen Targets, the limits for a toplogy are:
1632 * 1. Bounding box (assuming 32bpp) must be < prim_bb_mem
1633 * 2. Total pixels (assuming 32bpp) must be < prim_bb_mem
1634 */
1635 u64 bb_mem = bounding_box.w * bounding_box.h * 4;
1636 u64 pixel_mem = total_pixels * 4;
1637
1638 if (bb_mem > dev_priv->prim_bb_mem) {
1639 DRM_ERROR("Topology is beyond supported limits.\n");
1640 ret = -EINVAL;
1641 goto out_free;
1642 }
1643
1644 if (pixel_mem > dev_priv->prim_bb_mem) {
1645 DRM_ERROR("Combined output size too large\n");
1646 ret = -EINVAL;
1647 goto out_free;
1648 }
1649 }
1650
1651 vmw_du_update_layout(dev_priv, arg->num_outputs, rects);
1652
1653 out_free:
1654 kfree(rects);
1655 return ret;
1656 }
1657
1658 /**
1659 * vmw_kms_helper_dirty - Helper to build commands and perform actions based
1660 * on a set of cliprects and a set of display units.
1661 *
1662 * @dev_priv: Pointer to a device private structure.
1663 * @framebuffer: Pointer to the framebuffer on which to perform the actions.
1664 * @clips: A set of struct drm_clip_rect. Either this os @vclips must be NULL.
1665 * Cliprects are given in framebuffer coordinates.
1666 * @vclips: A set of struct drm_vmw_rect cliprects. Either this or @clips must
1667 * be NULL. Cliprects are given in source coordinates.
1668 * @dest_x: X coordinate offset for the crtc / destination clip rects.
1669 * @dest_y: Y coordinate offset for the crtc / destination clip rects.
1670 * @num_clips: Number of cliprects in the @clips or @vclips array.
1671 * @increment: Integer with which to increment the clip counter when looping.
1672 * Used to skip a predetermined number of clip rects.
1673 * @dirty: Closure structure. See the description of struct vmw_kms_dirty.
1674 */
1675 int vmw_kms_helper_dirty(struct vmw_private *dev_priv,
1676 struct vmw_framebuffer *framebuffer,
1677 const struct drm_clip_rect *clips,
1678 const struct drm_vmw_rect *vclips,
1679 s32 dest_x, s32 dest_y,
1680 int num_clips,
1681 int increment,
1682 struct vmw_kms_dirty *dirty)
1683 {
1684 struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
1685 struct drm_crtc *crtc;
1686 u32 num_units = 0;
1687 u32 i, k;
1688
1689 dirty->dev_priv = dev_priv;
1690
1691 list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1692 if (crtc->primary->fb != &framebuffer->base)
1693 continue;
1694 units[num_units++] = vmw_crtc_to_du(crtc);
1695 }
1696
1697 for (k = 0; k < num_units; k++) {
1698 struct vmw_display_unit *unit = units[k];
1699 s32 crtc_x = unit->crtc.x;
1700 s32 crtc_y = unit->crtc.y;
1701 s32 crtc_width = unit->crtc.mode.hdisplay;
1702 s32 crtc_height = unit->crtc.mode.vdisplay;
1703 const struct drm_clip_rect *clips_ptr = clips;
1704 const struct drm_vmw_rect *vclips_ptr = vclips;
1705
1706 dirty->unit = unit;
1707 if (dirty->fifo_reserve_size > 0) {
1708 dirty->cmd = vmw_fifo_reserve(dev_priv,
1709 dirty->fifo_reserve_size);
1710 if (!dirty->cmd) {
1711 DRM_ERROR("Couldn't reserve fifo space "
1712 "for dirty blits.\n");
1713 return -ENOMEM;
1714 }
1715 memset(dirty->cmd, 0, dirty->fifo_reserve_size);
1716 }
1717 dirty->num_hits = 0;
1718 for (i = 0; i < num_clips; i++, clips_ptr += increment,
1719 vclips_ptr += increment) {
1720 s32 clip_left;
1721 s32 clip_top;
1722
1723 /*
1724 * Select clip array type. Note that integer type
1725 * in @clips is unsigned short, whereas in @vclips
1726 * it's 32-bit.
1727 */
1728 if (clips) {
1729 dirty->fb_x = (s32) clips_ptr->x1;
1730 dirty->fb_y = (s32) clips_ptr->y1;
1731 dirty->unit_x2 = (s32) clips_ptr->x2 + dest_x -
1732 crtc_x;
1733 dirty->unit_y2 = (s32) clips_ptr->y2 + dest_y -
1734 crtc_y;
1735 } else {
1736 dirty->fb_x = vclips_ptr->x;
1737 dirty->fb_y = vclips_ptr->y;
1738 dirty->unit_x2 = dirty->fb_x + vclips_ptr->w +
1739 dest_x - crtc_x;
1740 dirty->unit_y2 = dirty->fb_y + vclips_ptr->h +
1741 dest_y - crtc_y;
1742 }
1743
1744 dirty->unit_x1 = dirty->fb_x + dest_x - crtc_x;
1745 dirty->unit_y1 = dirty->fb_y + dest_y - crtc_y;
1746
1747 /* Skip this clip if it's outside the crtc region */
1748 if (dirty->unit_x1 >= crtc_width ||
1749 dirty->unit_y1 >= crtc_height ||
1750 dirty->unit_x2 <= 0 || dirty->unit_y2 <= 0)
1751 continue;
1752
1753 /* Clip right and bottom to crtc limits */
1754 dirty->unit_x2 = min_t(s32, dirty->unit_x2,
1755 crtc_width);
1756 dirty->unit_y2 = min_t(s32, dirty->unit_y2,
1757 crtc_height);
1758
1759 /* Clip left and top to crtc limits */
1760 clip_left = min_t(s32, dirty->unit_x1, 0);
1761 clip_top = min_t(s32, dirty->unit_y1, 0);
1762 dirty->unit_x1 -= clip_left;
1763 dirty->unit_y1 -= clip_top;
1764 dirty->fb_x -= clip_left;
1765 dirty->fb_y -= clip_top;
1766
1767 dirty->clip(dirty);
1768 }
1769
1770 dirty->fifo_commit(dirty);
1771 }
1772
1773 return 0;
1774 }
1775
1776 /**
1777 * vmw_kms_helper_buffer_prepare - Reserve and validate a buffer object before
1778 * command submission.
1779 *
1780 * @dev_priv. Pointer to a device private structure.
1781 * @buf: The buffer object
1782 * @interruptible: Whether to perform waits as interruptible.
1783 * @validate_as_mob: Whether the buffer should be validated as a MOB. If false,
1784 * The buffer will be validated as a GMR. Already pinned buffers will not be
1785 * validated.
1786 *
1787 * Returns 0 on success, negative error code on failure, -ERESTARTSYS if
1788 * interrupted by a signal.
1789 */
1790 int vmw_kms_helper_buffer_prepare(struct vmw_private *dev_priv,
1791 struct vmw_dma_buffer *buf,
1792 bool interruptible,
1793 bool validate_as_mob)
1794 {
1795 struct ttm_buffer_object *bo = &buf->base;
1796 int ret;
1797
1798 ttm_bo_reserve(bo, false, false, interruptible, NULL);
1799 ret = vmw_validate_single_buffer(dev_priv, bo, interruptible,
1800 validate_as_mob);
1801 if (ret)
1802 ttm_bo_unreserve(bo);
1803
1804 return ret;
1805 }
1806
1807 /**
1808 * vmw_kms_helper_buffer_revert - Undo the actions of
1809 * vmw_kms_helper_buffer_prepare.
1810 *
1811 * @res: Pointer to the buffer object.
1812 *
1813 * Helper to be used if an error forces the caller to undo the actions of
1814 * vmw_kms_helper_buffer_prepare.
1815 */
1816 void vmw_kms_helper_buffer_revert(struct vmw_dma_buffer *buf)
1817 {
1818 if (buf)
1819 ttm_bo_unreserve(&buf->base);
1820 }
1821
1822 /**
1823 * vmw_kms_helper_buffer_finish - Unreserve and fence a buffer object after
1824 * kms command submission.
1825 *
1826 * @dev_priv: Pointer to a device private structure.
1827 * @file_priv: Pointer to a struct drm_file representing the caller's
1828 * connection. Must be set to NULL if @user_fence_rep is NULL, and conversely
1829 * if non-NULL, @user_fence_rep must be non-NULL.
1830 * @buf: The buffer object.
1831 * @out_fence: Optional pointer to a fence pointer. If non-NULL, a
1832 * ref-counted fence pointer is returned here.
1833 * @user_fence_rep: Optional pointer to a user-space provided struct
1834 * drm_vmw_fence_rep. If provided, @file_priv must also be provided and the
1835 * function copies fence data to user-space in a fail-safe manner.
1836 */
1837 void vmw_kms_helper_buffer_finish(struct vmw_private *dev_priv,
1838 struct drm_file *file_priv,
1839 struct vmw_dma_buffer *buf,
1840 struct vmw_fence_obj **out_fence,
1841 struct drm_vmw_fence_rep __user *
1842 user_fence_rep)
1843 {
1844 struct vmw_fence_obj *fence;
1845 uint32_t handle;
1846 int ret;
1847
1848 ret = vmw_execbuf_fence_commands(file_priv, dev_priv, &fence,
1849 file_priv ? &handle : NULL);
1850 if (buf)
1851 vmw_fence_single_bo(&buf->base, fence);
1852 if (file_priv)
1853 vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv),
1854 ret, user_fence_rep, fence,
1855 handle);
1856 if (out_fence)
1857 *out_fence = fence;
1858 else
1859 vmw_fence_obj_unreference(&fence);
1860
1861 vmw_kms_helper_buffer_revert(buf);
1862 }
1863
1864
1865 /**
1866 * vmw_kms_helper_resource_revert - Undo the actions of
1867 * vmw_kms_helper_resource_prepare.
1868 *
1869 * @res: Pointer to the resource. Typically a surface.
1870 *
1871 * Helper to be used if an error forces the caller to undo the actions of
1872 * vmw_kms_helper_resource_prepare.
1873 */
1874 void vmw_kms_helper_resource_revert(struct vmw_resource *res)
1875 {
1876 vmw_kms_helper_buffer_revert(res->backup);
1877 vmw_resource_unreserve(res, false, NULL, 0);
1878 mutex_unlock(&res->dev_priv->cmdbuf_mutex);
1879 }
1880
1881 /**
1882 * vmw_kms_helper_resource_prepare - Reserve and validate a resource before
1883 * command submission.
1884 *
1885 * @res: Pointer to the resource. Typically a surface.
1886 * @interruptible: Whether to perform waits as interruptible.
1887 *
1888 * Reserves and validates also the backup buffer if a guest-backed resource.
1889 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
1890 * interrupted by a signal.
1891 */
1892 int vmw_kms_helper_resource_prepare(struct vmw_resource *res,
1893 bool interruptible)
1894 {
1895 int ret = 0;
1896
1897 if (interruptible)
1898 ret = mutex_lock_interruptible(&res->dev_priv->cmdbuf_mutex);
1899 else
1900 mutex_lock(&res->dev_priv->cmdbuf_mutex);
1901
1902 if (unlikely(ret != 0))
1903 return -ERESTARTSYS;
1904
1905 ret = vmw_resource_reserve(res, interruptible, false);
1906 if (ret)
1907 goto out_unlock;
1908
1909 if (res->backup) {
1910 ret = vmw_kms_helper_buffer_prepare(res->dev_priv, res->backup,
1911 interruptible,
1912 res->dev_priv->has_mob);
1913 if (ret)
1914 goto out_unreserve;
1915 }
1916 ret = vmw_resource_validate(res);
1917 if (ret)
1918 goto out_revert;
1919 return 0;
1920
1921 out_revert:
1922 vmw_kms_helper_buffer_revert(res->backup);
1923 out_unreserve:
1924 vmw_resource_unreserve(res, false, NULL, 0);
1925 out_unlock:
1926 mutex_unlock(&res->dev_priv->cmdbuf_mutex);
1927 return ret;
1928 }
1929
1930 /**
1931 * vmw_kms_helper_resource_finish - Unreserve and fence a resource after
1932 * kms command submission.
1933 *
1934 * @res: Pointer to the resource. Typically a surface.
1935 * @out_fence: Optional pointer to a fence pointer. If non-NULL, a
1936 * ref-counted fence pointer is returned here.
1937 */
1938 void vmw_kms_helper_resource_finish(struct vmw_resource *res,
1939 struct vmw_fence_obj **out_fence)
1940 {
1941 if (res->backup || out_fence)
1942 vmw_kms_helper_buffer_finish(res->dev_priv, NULL, res->backup,
1943 out_fence, NULL);
1944
1945 vmw_resource_unreserve(res, false, NULL, 0);
1946 mutex_unlock(&res->dev_priv->cmdbuf_mutex);
1947 }
1948
1949 /**
1950 * vmw_kms_update_proxy - Helper function to update a proxy surface from
1951 * its backing MOB.
1952 *
1953 * @res: Pointer to the surface resource
1954 * @clips: Clip rects in framebuffer (surface) space.
1955 * @num_clips: Number of clips in @clips.
1956 * @increment: Integer with which to increment the clip counter when looping.
1957 * Used to skip a predetermined number of clip rects.
1958 *
1959 * This function makes sure the proxy surface is updated from its backing MOB
1960 * using the region given by @clips. The surface resource @res and its backing
1961 * MOB needs to be reserved and validated on call.
1962 */
1963 int vmw_kms_update_proxy(struct vmw_resource *res,
1964 const struct drm_clip_rect *clips,
1965 unsigned num_clips,
1966 int increment)
1967 {
1968 struct vmw_private *dev_priv = res->dev_priv;
1969 struct drm_vmw_size *size = &vmw_res_to_srf(res)->base_size;
1970 struct {
1971 SVGA3dCmdHeader header;
1972 SVGA3dCmdUpdateGBImage body;
1973 } *cmd;
1974 SVGA3dBox *box;
1975 size_t copy_size = 0;
1976 int i;
1977
1978 if (!clips)
1979 return 0;
1980
1981 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd) * num_clips);
1982 if (!cmd) {
1983 DRM_ERROR("Couldn't reserve fifo space for proxy surface "
1984 "update.\n");
1985 return -ENOMEM;
1986 }
1987
1988 for (i = 0; i < num_clips; ++i, clips += increment, ++cmd) {
1989 box = &cmd->body.box;
1990
1991 cmd->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE;
1992 cmd->header.size = sizeof(cmd->body);
1993 cmd->body.image.sid = res->id;
1994 cmd->body.image.face = 0;
1995 cmd->body.image.mipmap = 0;
1996
1997 if (clips->x1 > size->width || clips->x2 > size->width ||
1998 clips->y1 > size->height || clips->y2 > size->height) {
1999 DRM_ERROR("Invalid clips outsize of framebuffer.\n");
2000 return -EINVAL;
2001 }
2002
2003 box->x = clips->x1;
2004 box->y = clips->y1;
2005 box->z = 0;
2006 box->w = clips->x2 - clips->x1;
2007 box->h = clips->y2 - clips->y1;
2008 box->d = 1;
2009
2010 copy_size += sizeof(*cmd);
2011 }
2012
2013 vmw_fifo_commit(dev_priv, copy_size);
2014
2015 return 0;
2016 }
2017
2018 int vmw_kms_fbdev_init_data(struct vmw_private *dev_priv,
2019 unsigned unit,
2020 u32 max_width,
2021 u32 max_height,
2022 struct drm_connector **p_con,
2023 struct drm_crtc **p_crtc,
2024 struct drm_display_mode **p_mode)
2025 {
2026 struct drm_connector *con;
2027 struct vmw_display_unit *du;
2028 struct drm_display_mode *mode;
2029 int i = 0;
2030
2031 list_for_each_entry(con, &dev_priv->dev->mode_config.connector_list,
2032 head) {
2033 if (i == unit)
2034 break;
2035
2036 ++i;
2037 }
2038
2039 if (i != unit) {
2040 DRM_ERROR("Could not find initial display unit.\n");
2041 return -EINVAL;
2042 }
2043
2044 if (list_empty(&con->modes))
2045 (void) vmw_du_connector_fill_modes(con, max_width, max_height);
2046
2047 if (list_empty(&con->modes)) {
2048 DRM_ERROR("Could not find initial display mode.\n");
2049 return -EINVAL;
2050 }
2051
2052 du = vmw_connector_to_du(con);
2053 *p_con = con;
2054 *p_crtc = &du->crtc;
2055
2056 list_for_each_entry(mode, &con->modes, head) {
2057 if (mode->type & DRM_MODE_TYPE_PREFERRED)
2058 break;
2059 }
2060
2061 if (mode->type & DRM_MODE_TYPE_PREFERRED)
2062 *p_mode = mode;
2063 else {
2064 WARN_ONCE(true, "Could not find initial preferred mode.\n");
2065 *p_mode = list_first_entry(&con->modes,
2066 struct drm_display_mode,
2067 head);
2068 }
2069
2070 return 0;
2071 }
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