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GUI: Fix Tomato RAF theme for all builds. Compilation typo.
[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / drivers / gpu / drm / vmwgfx / vmwgfx_kms.c
blob74c731492a4dd4f288511ab070a8da7ba9794c21
1 /**************************************************************************
2 *
3 * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 #include "vmwgfx_kms.h"
29
30 /* Might need a hrtimer here? */
31 #define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1)
32
33 static int vmw_surface_dmabuf_pin(struct vmw_framebuffer *vfb);
34 static int vmw_surface_dmabuf_unpin(struct vmw_framebuffer *vfb);
35
36 void vmw_display_unit_cleanup(struct vmw_display_unit *du)
37 {
38 if (du->cursor_surface)
39 vmw_surface_unreference(&du->cursor_surface);
40 if (du->cursor_dmabuf)
41 vmw_dmabuf_unreference(&du->cursor_dmabuf);
42 drm_crtc_cleanup(&du->crtc);
43 drm_encoder_cleanup(&du->encoder);
44 drm_connector_cleanup(&du->connector);
45 }
46
47 /*
48 * Display Unit Cursor functions
49 */
50
51 int vmw_cursor_update_image(struct vmw_private *dev_priv,
52 u32 *image, u32 width, u32 height,
53 u32 hotspotX, u32 hotspotY)
54 {
55 struct {
56 u32 cmd;
57 SVGAFifoCmdDefineAlphaCursor cursor;
58 } *cmd;
59 u32 image_size = width * height * 4;
60 u32 cmd_size = sizeof(*cmd) + image_size;
61
62 if (!image)
63 return -EINVAL;
64
65 cmd = vmw_fifo_reserve(dev_priv, cmd_size);
66 if (unlikely(cmd == NULL)) {
67 DRM_ERROR("Fifo reserve failed.\n");
68 return -ENOMEM;
69 }
70
71 memset(cmd, 0, sizeof(*cmd));
72
73 memcpy(&cmd[1], image, image_size);
74
75 cmd->cmd = cpu_to_le32(SVGA_CMD_DEFINE_ALPHA_CURSOR);
76 cmd->cursor.id = cpu_to_le32(0);
77 cmd->cursor.width = cpu_to_le32(width);
78 cmd->cursor.height = cpu_to_le32(height);
79 cmd->cursor.hotspotX = cpu_to_le32(hotspotX);
80 cmd->cursor.hotspotY = cpu_to_le32(hotspotY);
81
82 vmw_fifo_commit(dev_priv, cmd_size);
83
84 return 0;
85 }
86
87 void vmw_cursor_update_position(struct vmw_private *dev_priv,
88 bool show, int x, int y)
89 {
90 __le32 __iomem *fifo_mem = dev_priv->mmio_virt;
91 uint32_t count;
92
93 iowrite32(show ? 1 : 0, fifo_mem + SVGA_FIFO_CURSOR_ON);
94 iowrite32(x, fifo_mem + SVGA_FIFO_CURSOR_X);
95 iowrite32(y, fifo_mem + SVGA_FIFO_CURSOR_Y);
96 count = ioread32(fifo_mem + SVGA_FIFO_CURSOR_COUNT);
97 iowrite32(++count, fifo_mem + SVGA_FIFO_CURSOR_COUNT);
98 }
99
100 int vmw_du_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
101 uint32_t handle, uint32_t width, uint32_t height)
102 {
103 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
104 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
105 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
106 struct vmw_surface *surface = NULL;
107 struct vmw_dma_buffer *dmabuf = NULL;
108 int ret;
109
110 if (handle) {
111 ret = vmw_user_surface_lookup_handle(dev_priv, tfile,
112 handle, &surface);
113 if (!ret) {
114 if (!surface->snooper.image) {
115 DRM_ERROR("surface not suitable for cursor\n");
116 return -EINVAL;
117 }
118 } else {
119 ret = vmw_user_dmabuf_lookup(tfile,
120 handle, &dmabuf);
121 if (ret) {
122 DRM_ERROR("failed to find surface or dmabuf: %i\n", ret);
123 return -EINVAL;
124 }
125 }
126 }
127
128 /* takedown old cursor */
129 if (du->cursor_surface) {
130 du->cursor_surface->snooper.crtc = NULL;
131 vmw_surface_unreference(&du->cursor_surface);
132 }
133 if (du->cursor_dmabuf)
134 vmw_dmabuf_unreference(&du->cursor_dmabuf);
135
136 /* setup new image */
137 if (surface) {
138 /* vmw_user_surface_lookup takes one reference */
139 du->cursor_surface = surface;
140
141 du->cursor_surface->snooper.crtc = crtc;
142 du->cursor_age = du->cursor_surface->snooper.age;
143 vmw_cursor_update_image(dev_priv, surface->snooper.image,
144 64, 64, du->hotspot_x, du->hotspot_y);
145 } else if (dmabuf) {
146 struct ttm_bo_kmap_obj map;
147 unsigned long kmap_offset;
148 unsigned long kmap_num;
149 void *virtual;
150 bool dummy;
151
152 /* vmw_user_surface_lookup takes one reference */
153 du->cursor_dmabuf = dmabuf;
154
155 kmap_offset = 0;
156 kmap_num = (64*64*4) >> PAGE_SHIFT;
157
158 ret = ttm_bo_reserve(&dmabuf->base, true, false, false, 0);
159 if (unlikely(ret != 0)) {
160 DRM_ERROR("reserve failed\n");
161 return -EINVAL;
162 }
163
164 ret = ttm_bo_kmap(&dmabuf->base, kmap_offset, kmap_num, &map);
165 if (unlikely(ret != 0))
166 goto err_unreserve;
167
168 virtual = ttm_kmap_obj_virtual(&map, &dummy);
169 vmw_cursor_update_image(dev_priv, virtual, 64, 64,
170 du->hotspot_x, du->hotspot_y);
171
172 ttm_bo_kunmap(&map);
173 err_unreserve:
174 ttm_bo_unreserve(&dmabuf->base);
175
176 } else {
177 vmw_cursor_update_position(dev_priv, false, 0, 0);
178 return 0;
179 }
180
181 vmw_cursor_update_position(dev_priv, true, du->cursor_x, du->cursor_y);
182
183 return 0;
184 }
185
186 int vmw_du_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
187 {
188 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
189 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
190 bool shown = du->cursor_surface || du->cursor_dmabuf ? true : false;
191
192 du->cursor_x = x + crtc->x;
193 du->cursor_y = y + crtc->y;
194
195 vmw_cursor_update_position(dev_priv, shown,
196 du->cursor_x, du->cursor_y);
197
198 return 0;
199 }
200
201 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
202 struct ttm_object_file *tfile,
203 struct ttm_buffer_object *bo,
204 SVGA3dCmdHeader *header)
205 {
206 struct ttm_bo_kmap_obj map;
207 unsigned long kmap_offset;
208 unsigned long kmap_num;
209 SVGA3dCopyBox *box;
210 unsigned box_count;
211 void *virtual;
212 bool dummy;
213 struct vmw_dma_cmd {
214 SVGA3dCmdHeader header;
215 SVGA3dCmdSurfaceDMA dma;
216 } *cmd;
217 int ret;
218
219 cmd = container_of(header, struct vmw_dma_cmd, header);
220
221 /* No snooper installed */
222 if (!srf->snooper.image)
223 return;
224
225 if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
226 DRM_ERROR("face and mipmap for cursors should never != 0\n");
227 return;
228 }
229
230 if (cmd->header.size < 64) {
231 DRM_ERROR("at least one full copy box must be given\n");
232 return;
233 }
234
235 box = (SVGA3dCopyBox *)&cmd[1];
236 box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
237 sizeof(SVGA3dCopyBox);
238
239 if (cmd->dma.guest.pitch != (64 * 4) ||
240 cmd->dma.guest.ptr.offset % PAGE_SIZE ||
241 box->x != 0 || box->y != 0 || box->z != 0 ||
242 box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
243 box->w != 64 || box->h != 64 || box->d != 1 ||
244 box_count != 1) {
245 /* TODO handle none page aligned offsets */
246 /* TODO handle partial uploads and pitch != 256 */
247 /* TODO handle more then one copy (size != 64) */
248 DRM_ERROR("lazy programer, cant handle wierd stuff\n");
249 return;
250 }
251
252 kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
253 kmap_num = (64*64*4) >> PAGE_SHIFT;
254
255 ret = ttm_bo_reserve(bo, true, false, false, 0);
256 if (unlikely(ret != 0)) {
257 DRM_ERROR("reserve failed\n");
258 return;
259 }
260
261 ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
262 if (unlikely(ret != 0))
263 goto err_unreserve;
264
265 virtual = ttm_kmap_obj_virtual(&map, &dummy);
266
267 memcpy(srf->snooper.image, virtual, 64*64*4);
268 srf->snooper.age++;
269
270 /* we can't call this function from this function since execbuf has
271 * reserved fifo space.
272 *
273 * if (srf->snooper.crtc)
274 * vmw_ldu_crtc_cursor_update_image(dev_priv,
275 * srf->snooper.image, 64, 64,
276 * du->hotspot_x, du->hotspot_y);
277 */
278
279 ttm_bo_kunmap(&map);
280 err_unreserve:
281 ttm_bo_unreserve(bo);
282 }
283
284 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
285 {
286 struct drm_device *dev = dev_priv->dev;
287 struct vmw_display_unit *du;
288 struct drm_crtc *crtc;
289
290 mutex_lock(&dev->mode_config.mutex);
291
292 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
293 du = vmw_crtc_to_du(crtc);
294 if (!du->cursor_surface ||
295 du->cursor_age == du->cursor_surface->snooper.age)
296 continue;
297
298 du->cursor_age = du->cursor_surface->snooper.age;
299 vmw_cursor_update_image(dev_priv,
300 du->cursor_surface->snooper.image,
301 64, 64, du->hotspot_x, du->hotspot_y);
302 }
303
304 mutex_unlock(&dev->mode_config.mutex);
305 }
306
307 /*
308 * Generic framebuffer code
309 */
310
311 int vmw_framebuffer_create_handle(struct drm_framebuffer *fb,
312 struct drm_file *file_priv,
313 unsigned int *handle)
314 {
315 if (handle)
316 handle = 0;
317
318 return 0;
319 }
320
321 /*
322 * Surface framebuffer code
323 */
324
325 #define vmw_framebuffer_to_vfbs(x) \
326 container_of(x, struct vmw_framebuffer_surface, base.base)
327
328 struct vmw_framebuffer_surface {
329 struct vmw_framebuffer base;
330 struct vmw_surface *surface;
331 struct vmw_dma_buffer *buffer;
332 struct delayed_work d_work;
333 struct mutex work_lock;
334 bool present_fs;
335 };
336
337 void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
338 {
339 struct vmw_framebuffer_surface *vfb =
340 vmw_framebuffer_to_vfbs(framebuffer);
341
342 cancel_delayed_work_sync(&vfb->d_work);
343 drm_framebuffer_cleanup(framebuffer);
344 vmw_surface_unreference(&vfb->surface);
345
346 kfree(framebuffer);
347 }
348
349 static void vmw_framebuffer_present_fs_callback(struct work_struct *work)
350 {
351 struct delayed_work *d_work =
352 container_of(work, struct delayed_work, work);
353 struct vmw_framebuffer_surface *vfbs =
354 container_of(d_work, struct vmw_framebuffer_surface, d_work);
355 struct vmw_surface *surf = vfbs->surface;
356 struct drm_framebuffer *framebuffer = &vfbs->base.base;
357 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
358
359 struct {
360 SVGA3dCmdHeader header;
361 SVGA3dCmdPresent body;
362 SVGA3dCopyRect cr;
363 } *cmd;
364
365 mutex_lock(&vfbs->work_lock);
366 if (!vfbs->present_fs)
367 goto out_unlock;
368
369 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
370 if (unlikely(cmd == NULL))
371 goto out_resched;
372
373 cmd->header.id = cpu_to_le32(SVGA_3D_CMD_PRESENT);
374 cmd->header.size = cpu_to_le32(sizeof(cmd->body) + sizeof(cmd->cr));
375 cmd->body.sid = cpu_to_le32(surf->res.id);
376 cmd->cr.x = cpu_to_le32(0);
377 cmd->cr.y = cpu_to_le32(0);
378 cmd->cr.srcx = cmd->cr.x;
379 cmd->cr.srcy = cmd->cr.y;
380 cmd->cr.w = cpu_to_le32(framebuffer->width);
381 cmd->cr.h = cpu_to_le32(framebuffer->height);
382 vfbs->present_fs = false;
383 vmw_fifo_commit(dev_priv, sizeof(*cmd));
384 out_resched:
385 /**
386 * Will not re-add if already pending.
387 */
388 schedule_delayed_work(&vfbs->d_work, VMWGFX_PRESENT_RATE);
389 out_unlock:
390 mutex_unlock(&vfbs->work_lock);
391 }
392
393
394 int vmw_framebuffer_surface_dirty(struct drm_framebuffer *framebuffer,
395 unsigned flags, unsigned color,
396 struct drm_clip_rect *clips,
397 unsigned num_clips)
398 {
399 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
400 struct vmw_framebuffer_surface *vfbs =
401 vmw_framebuffer_to_vfbs(framebuffer);
402 struct vmw_surface *surf = vfbs->surface;
403 struct drm_clip_rect norect;
404 SVGA3dCopyRect *cr;
405 int i, inc = 1;
406
407 struct {
408 SVGA3dCmdHeader header;
409 SVGA3dCmdPresent body;
410 SVGA3dCopyRect cr;
411 } *cmd;
412
413 if (!num_clips ||
414 !(dev_priv->fifo.capabilities &
415 SVGA_FIFO_CAP_SCREEN_OBJECT)) {
416 int ret;
417
418 mutex_lock(&vfbs->work_lock);
419 vfbs->present_fs = true;
420 ret = schedule_delayed_work(&vfbs->d_work, VMWGFX_PRESENT_RATE);
421 mutex_unlock(&vfbs->work_lock);
422 if (ret) {
423 /**
424 * No work pending, Force immediate present.
425 */
426 vmw_framebuffer_present_fs_callback(&vfbs->d_work.work);
427 }
428 return 0;
429 }
430
431 if (!num_clips) {
432 num_clips = 1;
433 clips = &norect;
434 norect.x1 = norect.y1 = 0;
435 norect.x2 = framebuffer->width;
436 norect.y2 = framebuffer->height;
437 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
438 num_clips /= 2;
439 inc = 2; /* skip source rects */
440 }
441
442 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd) + (num_clips - 1) * sizeof(cmd->cr));
443 if (unlikely(cmd == NULL)) {
444 DRM_ERROR("Fifo reserve failed.\n");
445 return -ENOMEM;
446 }
447
448 memset(cmd, 0, sizeof(*cmd));
449
450 cmd->header.id = cpu_to_le32(SVGA_3D_CMD_PRESENT);
451 cmd->header.size = cpu_to_le32(sizeof(cmd->body) + num_clips * sizeof(cmd->cr));
452 cmd->body.sid = cpu_to_le32(surf->res.id);
453
454 for (i = 0, cr = &cmd->cr; i < num_clips; i++, cr++, clips += inc) {
455 cr->x = cpu_to_le16(clips->x1);
456 cr->y = cpu_to_le16(clips->y1);
457 cr->srcx = cr->x;
458 cr->srcy = cr->y;
459 cr->w = cpu_to_le16(clips->x2 - clips->x1);
460 cr->h = cpu_to_le16(clips->y2 - clips->y1);
461 }
462
463 vmw_fifo_commit(dev_priv, sizeof(*cmd) + (num_clips - 1) * sizeof(cmd->cr));
464
465 return 0;
466 }
467
468 static struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
469 .destroy = vmw_framebuffer_surface_destroy,
470 .dirty = vmw_framebuffer_surface_dirty,
471 .create_handle = vmw_framebuffer_create_handle,
472 };
473
474 int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
475 struct vmw_surface *surface,
476 struct vmw_framebuffer **out,
477 unsigned width, unsigned height)
478
479 {
480 struct drm_device *dev = dev_priv->dev;
481 struct vmw_framebuffer_surface *vfbs;
482 int ret;
483
484 vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
485 if (!vfbs) {
486 ret = -ENOMEM;
487 goto out_err1;
488 }
489
490 ret = drm_framebuffer_init(dev, &vfbs->base.base,
491 &vmw_framebuffer_surface_funcs);
492 if (ret)
493 goto out_err2;
494
495 if (!vmw_surface_reference(surface)) {
496 DRM_ERROR("failed to reference surface %p\n", surface);
497 goto out_err3;
498 }
499
500 vfbs->base.base.bits_per_pixel = 32;
501 vfbs->base.base.pitch = width * 32 / 4;
502 vfbs->base.base.depth = 24;
503 vfbs->base.base.width = width;
504 vfbs->base.base.height = height;
505 vfbs->base.pin = &vmw_surface_dmabuf_pin;
506 vfbs->base.unpin = &vmw_surface_dmabuf_unpin;
507 vfbs->surface = surface;
508 mutex_init(&vfbs->work_lock);
509 INIT_DELAYED_WORK(&vfbs->d_work, &vmw_framebuffer_present_fs_callback);
510 *out = &vfbs->base;
511
512 return 0;
513
514 out_err3:
515 drm_framebuffer_cleanup(&vfbs->base.base);
516 out_err2:
517 kfree(vfbs);
518 out_err1:
519 return ret;
520 }
521
522 /*
523 * Dmabuf framebuffer code
524 */
525
526 #define vmw_framebuffer_to_vfbd(x) \
527 container_of(x, struct vmw_framebuffer_dmabuf, base.base)
528
529 struct vmw_framebuffer_dmabuf {
530 struct vmw_framebuffer base;
531 struct vmw_dma_buffer *buffer;
532 };
533
534 void vmw_framebuffer_dmabuf_destroy(struct drm_framebuffer *framebuffer)
535 {
536 struct vmw_framebuffer_dmabuf *vfbd =
537 vmw_framebuffer_to_vfbd(framebuffer);
538
539 drm_framebuffer_cleanup(framebuffer);
540 vmw_dmabuf_unreference(&vfbd->buffer);
541
542 kfree(vfbd);
543 }
544
545 int vmw_framebuffer_dmabuf_dirty(struct drm_framebuffer *framebuffer,
546 unsigned flags, unsigned color,
547 struct drm_clip_rect *clips,
548 unsigned num_clips)
549 {
550 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
551 struct drm_clip_rect norect;
552 struct {
553 uint32_t header;
554 SVGAFifoCmdUpdate body;
555 } *cmd;
556 int i, increment = 1;
557
558 if (!num_clips) {
559 num_clips = 1;
560 clips = &norect;
561 norect.x1 = norect.y1 = 0;
562 norect.x2 = framebuffer->width;
563 norect.y2 = framebuffer->height;
564 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
565 num_clips /= 2;
566 increment = 2;
567 }
568
569 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd) * num_clips);
570 if (unlikely(cmd == NULL)) {
571 DRM_ERROR("Fifo reserve failed.\n");
572 return -ENOMEM;
573 }
574
575 for (i = 0; i < num_clips; i++, clips += increment) {
576 cmd[i].header = cpu_to_le32(SVGA_CMD_UPDATE);
577 cmd[i].body.x = cpu_to_le32(clips->x1);
578 cmd[i].body.y = cpu_to_le32(clips->y1);
579 cmd[i].body.width = cpu_to_le32(clips->x2 - clips->x1);
580 cmd[i].body.height = cpu_to_le32(clips->y2 - clips->y1);
581 }
582
583 vmw_fifo_commit(dev_priv, sizeof(*cmd) * num_clips);
584
585 return 0;
586 }
587
588 static struct drm_framebuffer_funcs vmw_framebuffer_dmabuf_funcs = {
589 .destroy = vmw_framebuffer_dmabuf_destroy,
590 .dirty = vmw_framebuffer_dmabuf_dirty,
591 .create_handle = vmw_framebuffer_create_handle,
592 };
593
594 static int vmw_surface_dmabuf_pin(struct vmw_framebuffer *vfb)
595 {
596 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
597 struct vmw_framebuffer_surface *vfbs =
598 vmw_framebuffer_to_vfbs(&vfb->base);
599 unsigned long size = vfbs->base.base.pitch * vfbs->base.base.height;
600 int ret;
601
602 vfbs->buffer = kzalloc(sizeof(*vfbs->buffer), GFP_KERNEL);
603 if (unlikely(vfbs->buffer == NULL))
604 return -ENOMEM;
605
606 vmw_overlay_pause_all(dev_priv);
607 ret = vmw_dmabuf_init(dev_priv, vfbs->buffer, size,
608 &vmw_vram_ne_placement,
609 false, &vmw_dmabuf_bo_free);
610 vmw_overlay_resume_all(dev_priv);
611
612 return ret;
613 }
614
615 static int vmw_surface_dmabuf_unpin(struct vmw_framebuffer *vfb)
616 {
617 struct ttm_buffer_object *bo;
618 struct vmw_framebuffer_surface *vfbs =
619 vmw_framebuffer_to_vfbs(&vfb->base);
620
621 bo = &vfbs->buffer->base;
622 ttm_bo_unref(&bo);
623 vfbs->buffer = NULL;
624
625 return 0;
626 }
627
628 static int vmw_framebuffer_dmabuf_pin(struct vmw_framebuffer *vfb)
629 {
630 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
631 struct vmw_framebuffer_dmabuf *vfbd =
632 vmw_framebuffer_to_vfbd(&vfb->base);
633 int ret;
634
635
636 vmw_overlay_pause_all(dev_priv);
637
638 ret = vmw_dmabuf_to_start_of_vram(dev_priv, vfbd->buffer);
639
640 vmw_overlay_resume_all(dev_priv);
641
642 WARN_ON(ret != 0);
643
644 return 0;
645 }
646
647 static int vmw_framebuffer_dmabuf_unpin(struct vmw_framebuffer *vfb)
648 {
649 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
650 struct vmw_framebuffer_dmabuf *vfbd =
651 vmw_framebuffer_to_vfbd(&vfb->base);
652
653 if (!vfbd->buffer) {
654 WARN_ON(!vfbd->buffer);
655 return 0;
656 }
657
658 return vmw_dmabuf_from_vram(dev_priv, vfbd->buffer);
659 }
660
661 int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv,
662 struct vmw_dma_buffer *dmabuf,
663 struct vmw_framebuffer **out,
664 unsigned width, unsigned height)
665
666 {
667 struct drm_device *dev = dev_priv->dev;
668 struct vmw_framebuffer_dmabuf *vfbd;
669 int ret;
670
671 vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
672 if (!vfbd) {
673 ret = -ENOMEM;
674 goto out_err1;
675 }
676
677 ret = drm_framebuffer_init(dev, &vfbd->base.base,
678 &vmw_framebuffer_dmabuf_funcs);
679 if (ret)
680 goto out_err2;
681
682 if (!vmw_dmabuf_reference(dmabuf)) {
683 DRM_ERROR("failed to reference dmabuf %p\n", dmabuf);
684 goto out_err3;
685 }
686
687 vfbd->base.base.bits_per_pixel = 32;
688 vfbd->base.base.pitch = width * vfbd->base.base.bits_per_pixel / 8;
689 vfbd->base.base.depth = 24;
690 vfbd->base.base.width = width;
691 vfbd->base.base.height = height;
692 vfbd->base.pin = vmw_framebuffer_dmabuf_pin;
693 vfbd->base.unpin = vmw_framebuffer_dmabuf_unpin;
694 vfbd->buffer = dmabuf;
695 *out = &vfbd->base;
696
697 return 0;
698
699 out_err3:
700 drm_framebuffer_cleanup(&vfbd->base.base);
701 out_err2:
702 kfree(vfbd);
703 out_err1:
704 return ret;
705 }
706
707 /*
708 * Generic Kernel modesetting functions
709 */
710
711 static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
712 struct drm_file *file_priv,
713 struct drm_mode_fb_cmd *mode_cmd)
714 {
715 struct vmw_private *dev_priv = vmw_priv(dev);
716 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
717 struct vmw_framebuffer *vfb = NULL;
718 struct vmw_surface *surface = NULL;
719 struct vmw_dma_buffer *bo = NULL;
720 int ret;
721
722 ret = vmw_user_surface_lookup_handle(dev_priv, tfile,
723 mode_cmd->handle, &surface);
724 if (ret)
725 goto try_dmabuf;
726
727 if (!surface->scanout)
728 goto err_not_scanout;
729
730 ret = vmw_kms_new_framebuffer_surface(dev_priv, surface, &vfb,
731 mode_cmd->width, mode_cmd->height);
732
733 /* vmw_user_surface_lookup takes one ref so does new_fb */
734 vmw_surface_unreference(&surface);
735
736 if (ret) {
737 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
738 return ERR_PTR(ret);
739 }
740 return &vfb->base;
741
742 try_dmabuf:
743 DRM_INFO("%s: trying buffer\n", __func__);
744
745 ret = vmw_user_dmabuf_lookup(tfile, mode_cmd->handle, &bo);
746 if (ret) {
747 DRM_ERROR("failed to find buffer: %i\n", ret);
748 return ERR_PTR(-ENOENT);
749 }
750
751 ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb,
752 mode_cmd->width, mode_cmd->height);
753
754 /* vmw_user_dmabuf_lookup takes one ref so does new_fb */
755 vmw_dmabuf_unreference(&bo);
756
757 if (ret) {
758 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
759 return ERR_PTR(ret);
760 }
761
762 return &vfb->base;
763
764 err_not_scanout:
765 DRM_ERROR("surface not marked as scanout\n");
766 /* vmw_user_surface_lookup takes one ref */
767 vmw_surface_unreference(&surface);
768
769 return ERR_PTR(-EINVAL);
770 }
771
772 static struct drm_mode_config_funcs vmw_kms_funcs = {
773 .fb_create = vmw_kms_fb_create,
774 };
775
776 int vmw_kms_init(struct vmw_private *dev_priv)
777 {
778 struct drm_device *dev = dev_priv->dev;
779 int ret;
780
781 drm_mode_config_init(dev);
782 dev->mode_config.funcs = &vmw_kms_funcs;
783 dev->mode_config.min_width = 1;
784 dev->mode_config.min_height = 1;
785 /* assumed largest fb size */
786 dev->mode_config.max_width = 8192;
787 dev->mode_config.max_height = 8192;
788
789 ret = vmw_kms_init_legacy_display_system(dev_priv);
790
791 return 0;
792 }
793
794 int vmw_kms_close(struct vmw_private *dev_priv)
795 {
796 /*
797 * Docs says we should take the lock before calling this function
798 * but since it destroys encoders and our destructor calls
799 * drm_encoder_cleanup which takes the lock we deadlock.
800 */
801 drm_mode_config_cleanup(dev_priv->dev);
802 vmw_kms_close_legacy_display_system(dev_priv);
803 return 0;
804 }
805
806 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
807 struct drm_file *file_priv)
808 {
809 struct drm_vmw_cursor_bypass_arg *arg = data;
810 struct vmw_display_unit *du;
811 struct drm_mode_object *obj;
812 struct drm_crtc *crtc;
813 int ret = 0;
814
815
816 mutex_lock(&dev->mode_config.mutex);
817 if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
818
819 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
820 du = vmw_crtc_to_du(crtc);
821 du->hotspot_x = arg->xhot;
822 du->hotspot_y = arg->yhot;
823 }
824
825 mutex_unlock(&dev->mode_config.mutex);
826 return 0;
827 }
828
829 obj = drm_mode_object_find(dev, arg->crtc_id, DRM_MODE_OBJECT_CRTC);
830 if (!obj) {
831 ret = -EINVAL;
832 goto out;
833 }
834
835 crtc = obj_to_crtc(obj);
836 du = vmw_crtc_to_du(crtc);
837
838 du->hotspot_x = arg->xhot;
839 du->hotspot_y = arg->yhot;
840
841 out:
842 mutex_unlock(&dev->mode_config.mutex);
843
844 return ret;
845 }
846
847 void vmw_kms_write_svga(struct vmw_private *vmw_priv,
848 unsigned width, unsigned height, unsigned pitch,
849 unsigned bbp, unsigned depth)
850 {
851 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
852 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
853 else if (vmw_fifo_have_pitchlock(vmw_priv))
854 iowrite32(pitch, vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
855 vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
856 vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
857 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bbp);
858 vmw_write(vmw_priv, SVGA_REG_DEPTH, depth);
859 vmw_write(vmw_priv, SVGA_REG_RED_MASK, 0x00ff0000);
860 vmw_write(vmw_priv, SVGA_REG_GREEN_MASK, 0x0000ff00);
861 vmw_write(vmw_priv, SVGA_REG_BLUE_MASK, 0x000000ff);
862 }
863
864 int vmw_kms_save_vga(struct vmw_private *vmw_priv)
865 {
866 struct vmw_vga_topology_state *save;
867 uint32_t i;
868
869 vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH);
870 vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT);
871 vmw_priv->vga_depth = vmw_read(vmw_priv, SVGA_REG_DEPTH);
872 vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL);
873 vmw_priv->vga_pseudo = vmw_read(vmw_priv, SVGA_REG_PSEUDOCOLOR);
874 vmw_priv->vga_red_mask = vmw_read(vmw_priv, SVGA_REG_RED_MASK);
875 vmw_priv->vga_blue_mask = vmw_read(vmw_priv, SVGA_REG_BLUE_MASK);
876 vmw_priv->vga_green_mask = vmw_read(vmw_priv, SVGA_REG_GREEN_MASK);
877 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
878 vmw_priv->vga_pitchlock =
879 vmw_read(vmw_priv, SVGA_REG_PITCHLOCK);
880 else if (vmw_fifo_have_pitchlock(vmw_priv))
881 vmw_priv->vga_pitchlock = ioread32(vmw_priv->mmio_virt +
882 SVGA_FIFO_PITCHLOCK);
883
884 if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
885 return 0;
886
887 vmw_priv->num_displays = vmw_read(vmw_priv,
888 SVGA_REG_NUM_GUEST_DISPLAYS);
889
890 for (i = 0; i < vmw_priv->num_displays; ++i) {
891 save = &vmw_priv->vga_save[i];
892 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
893 save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY);
894 save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X);
895 save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y);
896 save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH);
897 save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT);
898 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
899 if (i == 0 && vmw_priv->num_displays == 1 &&
900 save->width == 0 && save->height == 0) {
901
902 /*
903 * It should be fairly safe to assume that these
904 * values are uninitialized.
905 */
906
907 save->width = vmw_priv->vga_width - save->pos_x;
908 save->height = vmw_priv->vga_height - save->pos_y;
909 }
910 }
911
912 return 0;
913 }
914
915 int vmw_kms_restore_vga(struct vmw_private *vmw_priv)
916 {
917 struct vmw_vga_topology_state *save;
918 uint32_t i;
919
920 vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width);
921 vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height);
922 vmw_write(vmw_priv, SVGA_REG_DEPTH, vmw_priv->vga_depth);
923 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp);
924 vmw_write(vmw_priv, SVGA_REG_PSEUDOCOLOR, vmw_priv->vga_pseudo);
925 vmw_write(vmw_priv, SVGA_REG_RED_MASK, vmw_priv->vga_red_mask);
926 vmw_write(vmw_priv, SVGA_REG_GREEN_MASK, vmw_priv->vga_green_mask);
927 vmw_write(vmw_priv, SVGA_REG_BLUE_MASK, vmw_priv->vga_blue_mask);
928 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
929 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK,
930 vmw_priv->vga_pitchlock);
931 else if (vmw_fifo_have_pitchlock(vmw_priv))
932 iowrite32(vmw_priv->vga_pitchlock,
933 vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
934
935 if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
936 return 0;
937
938 for (i = 0; i < vmw_priv->num_displays; ++i) {
939 save = &vmw_priv->vga_save[i];
940 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
941 vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary);
942 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x);
943 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y);
944 vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width);
945 vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height);
946 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
947 }
948
949 return 0;
950 }
951
952 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
953 struct drm_file *file_priv)
954 {
955 struct vmw_private *dev_priv = vmw_priv(dev);
956 struct drm_vmw_update_layout_arg *arg =
957 (struct drm_vmw_update_layout_arg *)data;
958 struct vmw_master *vmaster = vmw_master(file_priv->master);
959 void __user *user_rects;
960 struct drm_vmw_rect *rects;
961 unsigned rects_size;
962 int ret;
963
964 ret = ttm_read_lock(&vmaster->lock, true);
965 if (unlikely(ret != 0))
966 return ret;
967
968 if (!arg->num_outputs) {
969 struct drm_vmw_rect def_rect = {0, 0, 800, 600};
970 vmw_kms_ldu_update_layout(dev_priv, 1, &def_rect);
971 goto out_unlock;
972 }
973
974 rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
975 rects = kzalloc(rects_size, GFP_KERNEL);
976 if (unlikely(!rects)) {
977 ret = -ENOMEM;
978 goto out_unlock;
979 }
980
981 user_rects = (void __user *)(unsigned long)arg->rects;
982 ret = copy_from_user(rects, user_rects, rects_size);
983 if (unlikely(ret != 0)) {
984 DRM_ERROR("Failed to get rects.\n");
985 ret = -EFAULT;
986 goto out_free;
987 }
988
989 vmw_kms_ldu_update_layout(dev_priv, arg->num_outputs, rects);
990
991 out_free:
992 kfree(rects);
993 out_unlock:
994 ttm_read_unlock(&vmaster->lock);
995 return ret;
996 }
997
998 u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc)
999 {
1000 return 0;
1001 }
Tomato firmware and modifications.