1 /**************************************************************************
2  *
3  * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
4  * All Rights Reserved.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the
8  * "Software"), to deal in the Software without restriction, including
9  * without limitation the rights to use, copy, modify, merge, publish,
10  * distribute, sub license, and/or sell copies of the Software, and to
11  * permit persons to whom the Software is furnished to do so, subject to
12  * the following conditions:
13  *
14  * The above copyright notice and this permission notice (including the
15  * next paragraph) shall be included in all copies or substantial portions
16  * of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24  * USE OR OTHER DEALINGS IN THE SOFTWARE.
25  *
26  **************************************************************************/
27 
28 #include "vmwgfx_kms.h"
29 
30 
31 /* Might need a hrtimer here? */
32 #define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1)
33 
34 
35 struct vmw_clip_rect {
36 	int x1, x2, y1, y2;
37 };
38 
39 /**
40  * Clip @num_rects number of @rects against @clip storing the
41  * results in @out_rects and the number of passed rects in @out_num.
42  */
vmw_clip_cliprects(struct drm_clip_rect * rects,int num_rects,struct vmw_clip_rect clip,SVGASignedRect * out_rects,int * out_num)43 void vmw_clip_cliprects(struct drm_clip_rect *rects,
44 			int num_rects,
45 			struct vmw_clip_rect clip,
46 			SVGASignedRect *out_rects,
47 			int *out_num)
48 {
49 	int i, k;
50 
51 	for (i = 0, k = 0; i < num_rects; i++) {
52 		int x1 = max_t(int, clip.x1, rects[i].x1);
53 		int y1 = max_t(int, clip.y1, rects[i].y1);
54 		int x2 = min_t(int, clip.x2, rects[i].x2);
55 		int y2 = min_t(int, clip.y2, rects[i].y2);
56 
57 		if (x1 >= x2)
58 			continue;
59 		if (y1 >= y2)
60 			continue;
61 
62 		out_rects[k].left   = x1;
63 		out_rects[k].top    = y1;
64 		out_rects[k].right  = x2;
65 		out_rects[k].bottom = y2;
66 		k++;
67 	}
68 
69 	*out_num = k;
70 }
71 
vmw_display_unit_cleanup(struct vmw_display_unit * du)72 void vmw_display_unit_cleanup(struct vmw_display_unit *du)
73 {
74 	if (du->cursor_surface)
75 		vmw_surface_unreference(&du->cursor_surface);
76 	if (du->cursor_dmabuf)
77 		vmw_dmabuf_unreference(&du->cursor_dmabuf);
78 	drm_crtc_cleanup(&du->crtc);
79 	drm_encoder_cleanup(&du->encoder);
80 	drm_connector_cleanup(&du->connector);
81 }
82 
83 /*
84  * Display Unit Cursor functions
85  */
86 
vmw_cursor_update_image(struct vmw_private * dev_priv,u32 * image,u32 width,u32 height,u32 hotspotX,u32 hotspotY)87 int vmw_cursor_update_image(struct vmw_private *dev_priv,
88 			    u32 *image, u32 width, u32 height,
89 			    u32 hotspotX, u32 hotspotY)
90 {
91 	struct {
92 		u32 cmd;
93 		SVGAFifoCmdDefineAlphaCursor cursor;
94 	} *cmd;
95 	u32 image_size = width * height * 4;
96 	u32 cmd_size = sizeof(*cmd) + image_size;
97 
98 	if (!image)
99 		return -EINVAL;
100 
101 	cmd = vmw_fifo_reserve(dev_priv, cmd_size);
102 	if (unlikely(cmd == NULL)) {
103 		DRM_ERROR("Fifo reserve failed.\n");
104 		return -ENOMEM;
105 	}
106 
107 	memset(cmd, 0, sizeof(*cmd));
108 
109 	memcpy(&cmd[1], image, image_size);
110 
111 	cmd->cmd = cpu_to_le32(SVGA_CMD_DEFINE_ALPHA_CURSOR);
112 	cmd->cursor.id = cpu_to_le32(0);
113 	cmd->cursor.width = cpu_to_le32(width);
114 	cmd->cursor.height = cpu_to_le32(height);
115 	cmd->cursor.hotspotX = cpu_to_le32(hotspotX);
116 	cmd->cursor.hotspotY = cpu_to_le32(hotspotY);
117 
118 	vmw_fifo_commit(dev_priv, cmd_size);
119 
120 	return 0;
121 }
122 
vmw_cursor_update_dmabuf(struct vmw_private * dev_priv,struct vmw_dma_buffer * dmabuf,u32 width,u32 height,u32 hotspotX,u32 hotspotY)123 int vmw_cursor_update_dmabuf(struct vmw_private *dev_priv,
124 			     struct vmw_dma_buffer *dmabuf,
125 			     u32 width, u32 height,
126 			     u32 hotspotX, u32 hotspotY)
127 {
128 	struct ttm_bo_kmap_obj map;
129 	unsigned long kmap_offset;
130 	unsigned long kmap_num;
131 	void *virtual;
132 	bool dummy;
133 	int ret;
134 
135 	kmap_offset = 0;
136 	kmap_num = (width*height*4 + PAGE_SIZE - 1) >> PAGE_SHIFT;
137 
138 	ret = ttm_bo_reserve(&dmabuf->base, true, false, false, 0);
139 	if (unlikely(ret != 0)) {
140 		DRM_ERROR("reserve failed\n");
141 		return -EINVAL;
142 	}
143 
144 	ret = ttm_bo_kmap(&dmabuf->base, kmap_offset, kmap_num, &map);
145 	if (unlikely(ret != 0))
146 		goto err_unreserve;
147 
148 	virtual = ttm_kmap_obj_virtual(&map, &dummy);
149 	ret = vmw_cursor_update_image(dev_priv, virtual, width, height,
150 				      hotspotX, hotspotY);
151 
152 	ttm_bo_kunmap(&map);
153 err_unreserve:
154 	ttm_bo_unreserve(&dmabuf->base);
155 
156 	return ret;
157 }
158 
159 
vmw_cursor_update_position(struct vmw_private * dev_priv,bool show,int x,int y)160 void vmw_cursor_update_position(struct vmw_private *dev_priv,
161 				bool show, int x, int y)
162 {
163 	__le32 __iomem *fifo_mem = dev_priv->mmio_virt;
164 	uint32_t count;
165 
166 	iowrite32(show ? 1 : 0, fifo_mem + SVGA_FIFO_CURSOR_ON);
167 	iowrite32(x, fifo_mem + SVGA_FIFO_CURSOR_X);
168 	iowrite32(y, fifo_mem + SVGA_FIFO_CURSOR_Y);
169 	count = ioread32(fifo_mem + SVGA_FIFO_CURSOR_COUNT);
170 	iowrite32(++count, fifo_mem + SVGA_FIFO_CURSOR_COUNT);
171 }
172 
vmw_du_crtc_cursor_set(struct drm_crtc * crtc,struct drm_file * file_priv,uint32_t handle,uint32_t width,uint32_t height)173 int vmw_du_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
174 			   uint32_t handle, uint32_t width, uint32_t height)
175 {
176 	struct vmw_private *dev_priv = vmw_priv(crtc->dev);
177 	struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
178 	struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
179 	struct vmw_surface *surface = NULL;
180 	struct vmw_dma_buffer *dmabuf = NULL;
181 	int ret;
182 
183 	/* A lot of the code assumes this */
184 	if (handle && (width != 64 || height != 64))
185 		return -EINVAL;
186 
187 	if (handle) {
188 		ret = vmw_user_lookup_handle(dev_priv, tfile,
189 					     handle, &surface, &dmabuf);
190 		if (ret) {
191 			DRM_ERROR("failed to find surface or dmabuf: %i\n", ret);
192 			return -EINVAL;
193 		}
194 	}
195 
196 	/* need to do this before taking down old image */
197 	if (surface && !surface->snooper.image) {
198 		DRM_ERROR("surface not suitable for cursor\n");
199 		vmw_surface_unreference(&surface);
200 		return -EINVAL;
201 	}
202 
203 	/* takedown old cursor */
204 	if (du->cursor_surface) {
205 		du->cursor_surface->snooper.crtc = NULL;
206 		vmw_surface_unreference(&du->cursor_surface);
207 	}
208 	if (du->cursor_dmabuf)
209 		vmw_dmabuf_unreference(&du->cursor_dmabuf);
210 
211 	/* setup new image */
212 	if (surface) {
213 		/* vmw_user_surface_lookup takes one reference */
214 		du->cursor_surface = surface;
215 
216 		du->cursor_surface->snooper.crtc = crtc;
217 		du->cursor_age = du->cursor_surface->snooper.age;
218 		vmw_cursor_update_image(dev_priv, surface->snooper.image,
219 					64, 64, du->hotspot_x, du->hotspot_y);
220 	} else if (dmabuf) {
221 		/* vmw_user_surface_lookup takes one reference */
222 		du->cursor_dmabuf = dmabuf;
223 
224 		ret = vmw_cursor_update_dmabuf(dev_priv, dmabuf, width, height,
225 					       du->hotspot_x, du->hotspot_y);
226 	} else {
227 		vmw_cursor_update_position(dev_priv, false, 0, 0);
228 		return 0;
229 	}
230 
231 	vmw_cursor_update_position(dev_priv, true,
232 				   du->cursor_x + du->hotspot_x,
233 				   du->cursor_y + du->hotspot_y);
234 
235 	return 0;
236 }
237 
vmw_du_crtc_cursor_move(struct drm_crtc * crtc,int x,int y)238 int vmw_du_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
239 {
240 	struct vmw_private *dev_priv = vmw_priv(crtc->dev);
241 	struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
242 	bool shown = du->cursor_surface || du->cursor_dmabuf ? true : false;
243 
244 	du->cursor_x = x + crtc->x;
245 	du->cursor_y = y + crtc->y;
246 
247 	vmw_cursor_update_position(dev_priv, shown,
248 				   du->cursor_x + du->hotspot_x,
249 				   du->cursor_y + du->hotspot_y);
250 
251 	return 0;
252 }
253 
vmw_kms_cursor_snoop(struct vmw_surface * srf,struct ttm_object_file * tfile,struct ttm_buffer_object * bo,SVGA3dCmdHeader * header)254 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
255 			  struct ttm_object_file *tfile,
256 			  struct ttm_buffer_object *bo,
257 			  SVGA3dCmdHeader *header)
258 {
259 	struct ttm_bo_kmap_obj map;
260 	unsigned long kmap_offset;
261 	unsigned long kmap_num;
262 	SVGA3dCopyBox *box;
263 	unsigned box_count;
264 	void *virtual;
265 	bool dummy;
266 	struct vmw_dma_cmd {
267 		SVGA3dCmdHeader header;
268 		SVGA3dCmdSurfaceDMA dma;
269 	} *cmd;
270 	int i, ret;
271 
272 	cmd = container_of(header, struct vmw_dma_cmd, header);
273 
274 	/* No snooper installed */
275 	if (!srf->snooper.image)
276 		return;
277 
278 	if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
279 		DRM_ERROR("face and mipmap for cursors should never != 0\n");
280 		return;
281 	}
282 
283 	if (cmd->header.size < 64) {
284 		DRM_ERROR("at least one full copy box must be given\n");
285 		return;
286 	}
287 
288 	box = (SVGA3dCopyBox *)&cmd[1];
289 	box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
290 			sizeof(SVGA3dCopyBox);
291 
292 	if (cmd->dma.guest.ptr.offset % PAGE_SIZE ||
293 	    box->x != 0    || box->y != 0    || box->z != 0    ||
294 	    box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
295 	    box->d != 1    || box_count != 1) {
296 		/* TODO handle none page aligned offsets */
297 		/* TODO handle more dst & src != 0 */
298 		/* TODO handle more then one copy */
299 		DRM_ERROR("Cant snoop dma request for cursor!\n");
300 		DRM_ERROR("(%u, %u, %u) (%u, %u, %u) (%ux%ux%u) %u %u\n",
301 			  box->srcx, box->srcy, box->srcz,
302 			  box->x, box->y, box->z,
303 			  box->w, box->h, box->d, box_count,
304 			  cmd->dma.guest.ptr.offset);
305 		return;
306 	}
307 
308 	kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
309 	kmap_num = (64*64*4) >> PAGE_SHIFT;
310 
311 	ret = ttm_bo_reserve(bo, true, false, false, 0);
312 	if (unlikely(ret != 0)) {
313 		DRM_ERROR("reserve failed\n");
314 		return;
315 	}
316 
317 	ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
318 	if (unlikely(ret != 0))
319 		goto err_unreserve;
320 
321 	virtual = ttm_kmap_obj_virtual(&map, &dummy);
322 
323 	if (box->w == 64 && cmd->dma.guest.pitch == 64*4) {
324 		memcpy(srf->snooper.image, virtual, 64*64*4);
325 	} else {
326 		/* Image is unsigned pointer. */
327 		for (i = 0; i < box->h; i++)
328 			memcpy(srf->snooper.image + i * 64,
329 			       virtual + i * cmd->dma.guest.pitch,
330 			       box->w * 4);
331 	}
332 
333 	srf->snooper.age++;
334 
335 	/* we can't call this function from this function since execbuf has
336 	 * reserved fifo space.
337 	 *
338 	 * if (srf->snooper.crtc)
339 	 *	vmw_ldu_crtc_cursor_update_image(dev_priv,
340 	 *					 srf->snooper.image, 64, 64,
341 	 *					 du->hotspot_x, du->hotspot_y);
342 	 */
343 
344 	ttm_bo_kunmap(&map);
345 err_unreserve:
346 	ttm_bo_unreserve(bo);
347 }
348 
vmw_kms_cursor_post_execbuf(struct vmw_private * dev_priv)349 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
350 {
351 	struct drm_device *dev = dev_priv->dev;
352 	struct vmw_display_unit *du;
353 	struct drm_crtc *crtc;
354 
355 	mutex_lock(&dev->mode_config.mutex);
356 
357 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
358 		du = vmw_crtc_to_du(crtc);
359 		if (!du->cursor_surface ||
360 		    du->cursor_age == du->cursor_surface->snooper.age)
361 			continue;
362 
363 		du->cursor_age = du->cursor_surface->snooper.age;
364 		vmw_cursor_update_image(dev_priv,
365 					du->cursor_surface->snooper.image,
366 					64, 64, du->hotspot_x, du->hotspot_y);
367 	}
368 
369 	mutex_unlock(&dev->mode_config.mutex);
370 }
371 
372 /*
373  * Generic framebuffer code
374  */
375 
vmw_framebuffer_create_handle(struct drm_framebuffer * fb,struct drm_file * file_priv,unsigned int * handle)376 int vmw_framebuffer_create_handle(struct drm_framebuffer *fb,
377 				  struct drm_file *file_priv,
378 				  unsigned int *handle)
379 {
380 	if (handle)
381 		*handle = 0;
382 
383 	return 0;
384 }
385 
386 /*
387  * Surface framebuffer code
388  */
389 
390 #define vmw_framebuffer_to_vfbs(x) \
391 	container_of(x, struct vmw_framebuffer_surface, base.base)
392 
393 struct vmw_framebuffer_surface {
394 	struct vmw_framebuffer base;
395 	struct vmw_surface *surface;
396 	struct vmw_dma_buffer *buffer;
397 	struct list_head head;
398 	struct drm_master *master;
399 };
400 
vmw_framebuffer_surface_destroy(struct drm_framebuffer * framebuffer)401 void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
402 {
403 	struct vmw_framebuffer_surface *vfbs =
404 		vmw_framebuffer_to_vfbs(framebuffer);
405 	struct vmw_master *vmaster = vmw_master(vfbs->master);
406 
407 
408 	mutex_lock(&vmaster->fb_surf_mutex);
409 	list_del(&vfbs->head);
410 	mutex_unlock(&vmaster->fb_surf_mutex);
411 
412 	drm_master_put(&vfbs->master);
413 	drm_framebuffer_cleanup(framebuffer);
414 	vmw_surface_unreference(&vfbs->surface);
415 	ttm_base_object_unref(&vfbs->base.user_obj);
416 
417 	kfree(vfbs);
418 }
419 
do_surface_dirty_sou(struct vmw_private * dev_priv,struct drm_file * file_priv,struct vmw_framebuffer * framebuffer,unsigned flags,unsigned color,struct drm_clip_rect * clips,unsigned num_clips,int inc,struct vmw_fence_obj ** out_fence)420 static int do_surface_dirty_sou(struct vmw_private *dev_priv,
421 				struct drm_file *file_priv,
422 				struct vmw_framebuffer *framebuffer,
423 				unsigned flags, unsigned color,
424 				struct drm_clip_rect *clips,
425 				unsigned num_clips, int inc,
426 				struct vmw_fence_obj **out_fence)
427 {
428 	struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
429 	struct drm_clip_rect *clips_ptr;
430 	struct drm_clip_rect *tmp;
431 	struct drm_crtc *crtc;
432 	size_t fifo_size;
433 	int i, num_units;
434 	int ret = 0; /* silence warning */
435 	int left, right, top, bottom;
436 
437 	struct {
438 		SVGA3dCmdHeader header;
439 		SVGA3dCmdBlitSurfaceToScreen body;
440 	} *cmd;
441 	SVGASignedRect *blits;
442 
443 	num_units = 0;
444 	list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list,
445 			    head) {
446 		if (crtc->fb != &framebuffer->base)
447 			continue;
448 		units[num_units++] = vmw_crtc_to_du(crtc);
449 	}
450 
451 	BUG_ON(!clips || !num_clips);
452 
453 	tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL);
454 	if (unlikely(tmp == NULL)) {
455 		DRM_ERROR("Temporary cliprect memory alloc failed.\n");
456 		return -ENOMEM;
457 	}
458 
459 	fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips;
460 	cmd = kzalloc(fifo_size, GFP_KERNEL);
461 	if (unlikely(cmd == NULL)) {
462 		DRM_ERROR("Temporary fifo memory alloc failed.\n");
463 		ret = -ENOMEM;
464 		goto out_free_tmp;
465 	}
466 
467 	/* setup blits pointer */
468 	blits = (SVGASignedRect *)&cmd[1];
469 
470 	/* initial clip region */
471 	left = clips->x1;
472 	right = clips->x2;
473 	top = clips->y1;
474 	bottom = clips->y2;
475 
476 	/* skip the first clip rect */
477 	for (i = 1, clips_ptr = clips + inc;
478 	     i < num_clips; i++, clips_ptr += inc) {
479 		left = min_t(int, left, (int)clips_ptr->x1);
480 		right = max_t(int, right, (int)clips_ptr->x2);
481 		top = min_t(int, top, (int)clips_ptr->y1);
482 		bottom = max_t(int, bottom, (int)clips_ptr->y2);
483 	}
484 
485 	/* only need to do this once */
486 	memset(cmd, 0, fifo_size);
487 	cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
488 	cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
489 
490 	cmd->body.srcRect.left = left;
491 	cmd->body.srcRect.right = right;
492 	cmd->body.srcRect.top = top;
493 	cmd->body.srcRect.bottom = bottom;
494 
495 	clips_ptr = clips;
496 	for (i = 0; i < num_clips; i++, clips_ptr += inc) {
497 		tmp[i].x1 = clips_ptr->x1 - left;
498 		tmp[i].x2 = clips_ptr->x2 - left;
499 		tmp[i].y1 = clips_ptr->y1 - top;
500 		tmp[i].y2 = clips_ptr->y2 - top;
501 	}
502 
503 	/* do per unit writing, reuse fifo for each */
504 	for (i = 0; i < num_units; i++) {
505 		struct vmw_display_unit *unit = units[i];
506 		struct vmw_clip_rect clip;
507 		int num;
508 
509 		clip.x1 = left - unit->crtc.x;
510 		clip.y1 = top - unit->crtc.y;
511 		clip.x2 = right - unit->crtc.x;
512 		clip.y2 = bottom - unit->crtc.y;
513 
514 		/* skip any crtcs that misses the clip region */
515 		if (clip.x1 >= unit->crtc.mode.hdisplay ||
516 		    clip.y1 >= unit->crtc.mode.vdisplay ||
517 		    clip.x2 <= 0 || clip.y2 <= 0)
518 			continue;
519 
520 		/*
521 		 * In order for the clip rects to be correctly scaled
522 		 * the src and dest rects needs to be the same size.
523 		 */
524 		cmd->body.destRect.left = clip.x1;
525 		cmd->body.destRect.right = clip.x2;
526 		cmd->body.destRect.top = clip.y1;
527 		cmd->body.destRect.bottom = clip.y2;
528 
529 		/* create a clip rect of the crtc in dest coords */
530 		clip.x2 = unit->crtc.mode.hdisplay - clip.x1;
531 		clip.y2 = unit->crtc.mode.vdisplay - clip.y1;
532 		clip.x1 = 0 - clip.x1;
533 		clip.y1 = 0 - clip.y1;
534 
535 		/* need to reset sid as it is changed by execbuf */
536 		cmd->body.srcImage.sid = cpu_to_le32(framebuffer->user_handle);
537 		cmd->body.destScreenId = unit->unit;
538 
539 		/* clip and write blits to cmd stream */
540 		vmw_clip_cliprects(tmp, num_clips, clip, blits, &num);
541 
542 		/* if no cliprects hit skip this */
543 		if (num == 0)
544 			continue;
545 
546 		/* only return the last fence */
547 		if (out_fence && *out_fence)
548 			vmw_fence_obj_unreference(out_fence);
549 
550 		/* recalculate package length */
551 		fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num;
552 		cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
553 		ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
554 					  fifo_size, 0, NULL, out_fence);
555 
556 		if (unlikely(ret != 0))
557 			break;
558 	}
559 
560 
561 	kfree(cmd);
562 out_free_tmp:
563 	kfree(tmp);
564 
565 	return ret;
566 }
567 
vmw_framebuffer_surface_dirty(struct drm_framebuffer * framebuffer,struct drm_file * file_priv,unsigned flags,unsigned color,struct drm_clip_rect * clips,unsigned num_clips)568 int vmw_framebuffer_surface_dirty(struct drm_framebuffer *framebuffer,
569 				  struct drm_file *file_priv,
570 				  unsigned flags, unsigned color,
571 				  struct drm_clip_rect *clips,
572 				  unsigned num_clips)
573 {
574 	struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
575 	struct vmw_master *vmaster = vmw_master(file_priv->master);
576 	struct vmw_framebuffer_surface *vfbs =
577 		vmw_framebuffer_to_vfbs(framebuffer);
578 	struct drm_clip_rect norect;
579 	int ret, inc = 1;
580 
581 	if (unlikely(vfbs->master != file_priv->master))
582 		return -EINVAL;
583 
584 	/* Require ScreenObject support for 3D */
585 	if (!dev_priv->sou_priv)
586 		return -EINVAL;
587 
588 	ret = ttm_read_lock(&vmaster->lock, true);
589 	if (unlikely(ret != 0))
590 		return ret;
591 
592 	if (!num_clips) {
593 		num_clips = 1;
594 		clips = &norect;
595 		norect.x1 = norect.y1 = 0;
596 		norect.x2 = framebuffer->width;
597 		norect.y2 = framebuffer->height;
598 	} else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
599 		num_clips /= 2;
600 		inc = 2; /* skip source rects */
601 	}
602 
603 	ret = do_surface_dirty_sou(dev_priv, file_priv, &vfbs->base,
604 				   flags, color,
605 				   clips, num_clips, inc, NULL);
606 
607 	ttm_read_unlock(&vmaster->lock);
608 	return 0;
609 }
610 
611 static struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
612 	.destroy = vmw_framebuffer_surface_destroy,
613 	.dirty = vmw_framebuffer_surface_dirty,
614 	.create_handle = vmw_framebuffer_create_handle,
615 };
616 
vmw_kms_new_framebuffer_surface(struct vmw_private * dev_priv,struct drm_file * file_priv,struct vmw_surface * surface,struct vmw_framebuffer ** out,const struct drm_mode_fb_cmd * mode_cmd)617 static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
618 					   struct drm_file *file_priv,
619 					   struct vmw_surface *surface,
620 					   struct vmw_framebuffer **out,
621 					   const struct drm_mode_fb_cmd
622 					   *mode_cmd)
623 
624 {
625 	struct drm_device *dev = dev_priv->dev;
626 	struct vmw_framebuffer_surface *vfbs;
627 	enum SVGA3dSurfaceFormat format;
628 	struct vmw_master *vmaster = vmw_master(file_priv->master);
629 	int ret;
630 
631 	/* 3D is only supported on HWv8 hosts which supports screen objects */
632 	if (!dev_priv->sou_priv)
633 		return -ENOSYS;
634 
635 	/*
636 	 * Sanity checks.
637 	 */
638 
639 	/* Surface must be marked as a scanout. */
640 	if (unlikely(!surface->scanout))
641 		return -EINVAL;
642 
643 	if (unlikely(surface->mip_levels[0] != 1 ||
644 		     surface->num_sizes != 1 ||
645 		     surface->sizes[0].width < mode_cmd->width ||
646 		     surface->sizes[0].height < mode_cmd->height ||
647 		     surface->sizes[0].depth != 1)) {
648 		DRM_ERROR("Incompatible surface dimensions "
649 			  "for requested mode.\n");
650 		return -EINVAL;
651 	}
652 
653 	switch (mode_cmd->depth) {
654 	case 32:
655 		format = SVGA3D_A8R8G8B8;
656 		break;
657 	case 24:
658 		format = SVGA3D_X8R8G8B8;
659 		break;
660 	case 16:
661 		format = SVGA3D_R5G6B5;
662 		break;
663 	case 15:
664 		format = SVGA3D_A1R5G5B5;
665 		break;
666 	case 8:
667 		format = SVGA3D_LUMINANCE8;
668 		break;
669 	default:
670 		DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
671 		return -EINVAL;
672 	}
673 
674 	if (unlikely(format != surface->format)) {
675 		DRM_ERROR("Invalid surface format for requested mode.\n");
676 		return -EINVAL;
677 	}
678 
679 	vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
680 	if (!vfbs) {
681 		ret = -ENOMEM;
682 		goto out_err1;
683 	}
684 
685 	ret = drm_framebuffer_init(dev, &vfbs->base.base,
686 				   &vmw_framebuffer_surface_funcs);
687 	if (ret)
688 		goto out_err2;
689 
690 	if (!vmw_surface_reference(surface)) {
691 		DRM_ERROR("failed to reference surface %p\n", surface);
692 		goto out_err3;
693 	}
694 
695 	/* XXX get the first 3 from the surface info */
696 	vfbs->base.base.bits_per_pixel = mode_cmd->bpp;
697 	vfbs->base.base.pitches[0] = mode_cmd->pitch;
698 	vfbs->base.base.depth = mode_cmd->depth;
699 	vfbs->base.base.width = mode_cmd->width;
700 	vfbs->base.base.height = mode_cmd->height;
701 	vfbs->surface = surface;
702 	vfbs->base.user_handle = mode_cmd->handle;
703 	vfbs->master = drm_master_get(file_priv->master);
704 
705 	mutex_lock(&vmaster->fb_surf_mutex);
706 	list_add_tail(&vfbs->head, &vmaster->fb_surf);
707 	mutex_unlock(&vmaster->fb_surf_mutex);
708 
709 	*out = &vfbs->base;
710 
711 	return 0;
712 
713 out_err3:
714 	drm_framebuffer_cleanup(&vfbs->base.base);
715 out_err2:
716 	kfree(vfbs);
717 out_err1:
718 	return ret;
719 }
720 
721 /*
722  * Dmabuf framebuffer code
723  */
724 
725 #define vmw_framebuffer_to_vfbd(x) \
726 	container_of(x, struct vmw_framebuffer_dmabuf, base.base)
727 
728 struct vmw_framebuffer_dmabuf {
729 	struct vmw_framebuffer base;
730 	struct vmw_dma_buffer *buffer;
731 };
732 
vmw_framebuffer_dmabuf_destroy(struct drm_framebuffer * framebuffer)733 void vmw_framebuffer_dmabuf_destroy(struct drm_framebuffer *framebuffer)
734 {
735 	struct vmw_framebuffer_dmabuf *vfbd =
736 		vmw_framebuffer_to_vfbd(framebuffer);
737 
738 	drm_framebuffer_cleanup(framebuffer);
739 	vmw_dmabuf_unreference(&vfbd->buffer);
740 	ttm_base_object_unref(&vfbd->base.user_obj);
741 
742 	kfree(vfbd);
743 }
744 
do_dmabuf_dirty_ldu(struct vmw_private * dev_priv,struct vmw_framebuffer * framebuffer,unsigned flags,unsigned color,struct drm_clip_rect * clips,unsigned num_clips,int increment)745 static int do_dmabuf_dirty_ldu(struct vmw_private *dev_priv,
746 			       struct vmw_framebuffer *framebuffer,
747 			       unsigned flags, unsigned color,
748 			       struct drm_clip_rect *clips,
749 			       unsigned num_clips, int increment)
750 {
751 	size_t fifo_size;
752 	int i;
753 
754 	struct {
755 		uint32_t header;
756 		SVGAFifoCmdUpdate body;
757 	} *cmd;
758 
759 	fifo_size = sizeof(*cmd) * num_clips;
760 	cmd = vmw_fifo_reserve(dev_priv, fifo_size);
761 	if (unlikely(cmd == NULL)) {
762 		DRM_ERROR("Fifo reserve failed.\n");
763 		return -ENOMEM;
764 	}
765 
766 	memset(cmd, 0, fifo_size);
767 	for (i = 0; i < num_clips; i++, clips += increment) {
768 		cmd[i].header = cpu_to_le32(SVGA_CMD_UPDATE);
769 		cmd[i].body.x = cpu_to_le32(clips->x1);
770 		cmd[i].body.y = cpu_to_le32(clips->y1);
771 		cmd[i].body.width = cpu_to_le32(clips->x2 - clips->x1);
772 		cmd[i].body.height = cpu_to_le32(clips->y2 - clips->y1);
773 	}
774 
775 	vmw_fifo_commit(dev_priv, fifo_size);
776 	return 0;
777 }
778 
do_dmabuf_define_gmrfb(struct drm_file * file_priv,struct vmw_private * dev_priv,struct vmw_framebuffer * framebuffer)779 static int do_dmabuf_define_gmrfb(struct drm_file *file_priv,
780 				  struct vmw_private *dev_priv,
781 				  struct vmw_framebuffer *framebuffer)
782 {
783 	int depth = framebuffer->base.depth;
784 	size_t fifo_size;
785 	int ret;
786 
787 	struct {
788 		uint32_t header;
789 		SVGAFifoCmdDefineGMRFB body;
790 	} *cmd;
791 
792 	/* Emulate RGBA support, contrary to svga_reg.h this is not
793 	 * supported by hosts. This is only a problem if we are reading
794 	 * this value later and expecting what we uploaded back.
795 	 */
796 	if (depth == 32)
797 		depth = 24;
798 
799 	fifo_size = sizeof(*cmd);
800 	cmd = kmalloc(fifo_size, GFP_KERNEL);
801 	if (unlikely(cmd == NULL)) {
802 		DRM_ERROR("Failed to allocate temporary cmd buffer.\n");
803 		return -ENOMEM;
804 	}
805 
806 	memset(cmd, 0, fifo_size);
807 	cmd->header = SVGA_CMD_DEFINE_GMRFB;
808 	cmd->body.format.bitsPerPixel = framebuffer->base.bits_per_pixel;
809 	cmd->body.format.colorDepth = depth;
810 	cmd->body.format.reserved = 0;
811 	cmd->body.bytesPerLine = framebuffer->base.pitches[0];
812 	cmd->body.ptr.gmrId = framebuffer->user_handle;
813 	cmd->body.ptr.offset = 0;
814 
815 	ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
816 				  fifo_size, 0, NULL, NULL);
817 
818 	kfree(cmd);
819 
820 	return ret;
821 }
822 
do_dmabuf_dirty_sou(struct drm_file * file_priv,struct vmw_private * dev_priv,struct vmw_framebuffer * framebuffer,unsigned flags,unsigned color,struct drm_clip_rect * clips,unsigned num_clips,int increment,struct vmw_fence_obj ** out_fence)823 static int do_dmabuf_dirty_sou(struct drm_file *file_priv,
824 			       struct vmw_private *dev_priv,
825 			       struct vmw_framebuffer *framebuffer,
826 			       unsigned flags, unsigned color,
827 			       struct drm_clip_rect *clips,
828 			       unsigned num_clips, int increment,
829 			       struct vmw_fence_obj **out_fence)
830 {
831 	struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
832 	struct drm_clip_rect *clips_ptr;
833 	int i, k, num_units, ret;
834 	struct drm_crtc *crtc;
835 	size_t fifo_size;
836 
837 	struct {
838 		uint32_t header;
839 		SVGAFifoCmdBlitGMRFBToScreen body;
840 	} *blits;
841 
842 	ret = do_dmabuf_define_gmrfb(file_priv, dev_priv, framebuffer);
843 	if (unlikely(ret != 0))
844 		return ret; /* define_gmrfb prints warnings */
845 
846 	fifo_size = sizeof(*blits) * num_clips;
847 	blits = kmalloc(fifo_size, GFP_KERNEL);
848 	if (unlikely(blits == NULL)) {
849 		DRM_ERROR("Failed to allocate temporary cmd buffer.\n");
850 		return -ENOMEM;
851 	}
852 
853 	num_units = 0;
854 	list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
855 		if (crtc->fb != &framebuffer->base)
856 			continue;
857 		units[num_units++] = vmw_crtc_to_du(crtc);
858 	}
859 
860 	for (k = 0; k < num_units; k++) {
861 		struct vmw_display_unit *unit = units[k];
862 		int hit_num = 0;
863 
864 		clips_ptr = clips;
865 		for (i = 0; i < num_clips; i++, clips_ptr += increment) {
866 			int clip_x1 = clips_ptr->x1 - unit->crtc.x;
867 			int clip_y1 = clips_ptr->y1 - unit->crtc.y;
868 			int clip_x2 = clips_ptr->x2 - unit->crtc.x;
869 			int clip_y2 = clips_ptr->y2 - unit->crtc.y;
870 			int move_x, move_y;
871 
872 			/* skip any crtcs that misses the clip region */
873 			if (clip_x1 >= unit->crtc.mode.hdisplay ||
874 			    clip_y1 >= unit->crtc.mode.vdisplay ||
875 			    clip_x2 <= 0 || clip_y2 <= 0)
876 				continue;
877 
878 			/* clip size to crtc size */
879 			clip_x2 = min_t(int, clip_x2, unit->crtc.mode.hdisplay);
880 			clip_y2 = min_t(int, clip_y2, unit->crtc.mode.vdisplay);
881 
882 			/* translate both src and dest to bring clip into screen */
883 			move_x = min_t(int, clip_x1, 0);
884 			move_y = min_t(int, clip_y1, 0);
885 
886 			/* actual translate done here */
887 			blits[hit_num].header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN;
888 			blits[hit_num].body.destScreenId = unit->unit;
889 			blits[hit_num].body.srcOrigin.x = clips_ptr->x1 - move_x;
890 			blits[hit_num].body.srcOrigin.y = clips_ptr->y1 - move_y;
891 			blits[hit_num].body.destRect.left = clip_x1 - move_x;
892 			blits[hit_num].body.destRect.top = clip_y1 - move_y;
893 			blits[hit_num].body.destRect.right = clip_x2;
894 			blits[hit_num].body.destRect.bottom = clip_y2;
895 			hit_num++;
896 		}
897 
898 		/* no clips hit the crtc */
899 		if (hit_num == 0)
900 			continue;
901 
902 		/* only return the last fence */
903 		if (out_fence && *out_fence)
904 			vmw_fence_obj_unreference(out_fence);
905 
906 		fifo_size = sizeof(*blits) * hit_num;
907 		ret = vmw_execbuf_process(file_priv, dev_priv, NULL, blits,
908 					  fifo_size, 0, NULL, out_fence);
909 
910 		if (unlikely(ret != 0))
911 			break;
912 	}
913 
914 	kfree(blits);
915 
916 	return ret;
917 }
918 
vmw_framebuffer_dmabuf_dirty(struct drm_framebuffer * framebuffer,struct drm_file * file_priv,unsigned flags,unsigned color,struct drm_clip_rect * clips,unsigned num_clips)919 int vmw_framebuffer_dmabuf_dirty(struct drm_framebuffer *framebuffer,
920 				 struct drm_file *file_priv,
921 				 unsigned flags, unsigned color,
922 				 struct drm_clip_rect *clips,
923 				 unsigned num_clips)
924 {
925 	struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
926 	struct vmw_master *vmaster = vmw_master(file_priv->master);
927 	struct vmw_framebuffer_dmabuf *vfbd =
928 		vmw_framebuffer_to_vfbd(framebuffer);
929 	struct drm_clip_rect norect;
930 	int ret, increment = 1;
931 
932 	ret = ttm_read_lock(&vmaster->lock, true);
933 	if (unlikely(ret != 0))
934 		return ret;
935 
936 	if (!num_clips) {
937 		num_clips = 1;
938 		clips = &norect;
939 		norect.x1 = norect.y1 = 0;
940 		norect.x2 = framebuffer->width;
941 		norect.y2 = framebuffer->height;
942 	} else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
943 		num_clips /= 2;
944 		increment = 2;
945 	}
946 
947 	if (dev_priv->ldu_priv) {
948 		ret = do_dmabuf_dirty_ldu(dev_priv, &vfbd->base,
949 					  flags, color,
950 					  clips, num_clips, increment);
951 	} else {
952 		ret = do_dmabuf_dirty_sou(file_priv, dev_priv, &vfbd->base,
953 					  flags, color,
954 					  clips, num_clips, increment, NULL);
955 	}
956 
957 	ttm_read_unlock(&vmaster->lock);
958 	return ret;
959 }
960 
961 static struct drm_framebuffer_funcs vmw_framebuffer_dmabuf_funcs = {
962 	.destroy = vmw_framebuffer_dmabuf_destroy,
963 	.dirty = vmw_framebuffer_dmabuf_dirty,
964 	.create_handle = vmw_framebuffer_create_handle,
965 };
966 
967 /**
968  * Pin the dmabuffer to the start of vram.
969  */
vmw_framebuffer_dmabuf_pin(struct vmw_framebuffer * vfb)970 static int vmw_framebuffer_dmabuf_pin(struct vmw_framebuffer *vfb)
971 {
972 	struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
973 	struct vmw_framebuffer_dmabuf *vfbd =
974 		vmw_framebuffer_to_vfbd(&vfb->base);
975 	int ret;
976 
977 	/* This code should not be used with screen objects */
978 	BUG_ON(dev_priv->sou_priv);
979 
980 	vmw_overlay_pause_all(dev_priv);
981 
982 	ret = vmw_dmabuf_to_start_of_vram(dev_priv, vfbd->buffer, true, false);
983 
984 	vmw_overlay_resume_all(dev_priv);
985 
986 	WARN_ON(ret != 0);
987 
988 	return 0;
989 }
990 
vmw_framebuffer_dmabuf_unpin(struct vmw_framebuffer * vfb)991 static int vmw_framebuffer_dmabuf_unpin(struct vmw_framebuffer *vfb)
992 {
993 	struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
994 	struct vmw_framebuffer_dmabuf *vfbd =
995 		vmw_framebuffer_to_vfbd(&vfb->base);
996 
997 	if (!vfbd->buffer) {
998 		WARN_ON(!vfbd->buffer);
999 		return 0;
1000 	}
1001 
1002 	return vmw_dmabuf_unpin(dev_priv, vfbd->buffer, false);
1003 }
1004 
vmw_kms_new_framebuffer_dmabuf(struct vmw_private * dev_priv,struct vmw_dma_buffer * dmabuf,struct vmw_framebuffer ** out,const struct drm_mode_fb_cmd * mode_cmd)1005 static int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv,
1006 					  struct vmw_dma_buffer *dmabuf,
1007 					  struct vmw_framebuffer **out,
1008 					  const struct drm_mode_fb_cmd
1009 					  *mode_cmd)
1010 
1011 {
1012 	struct drm_device *dev = dev_priv->dev;
1013 	struct vmw_framebuffer_dmabuf *vfbd;
1014 	unsigned int requested_size;
1015 	int ret;
1016 
1017 	requested_size = mode_cmd->height * mode_cmd->pitch;
1018 	if (unlikely(requested_size > dmabuf->base.num_pages * PAGE_SIZE)) {
1019 		DRM_ERROR("Screen buffer object size is too small "
1020 			  "for requested mode.\n");
1021 		return -EINVAL;
1022 	}
1023 
1024 	/* Limited framebuffer color depth support for screen objects */
1025 	if (dev_priv->sou_priv) {
1026 		switch (mode_cmd->depth) {
1027 		case 32:
1028 		case 24:
1029 			/* Only support 32 bpp for 32 and 24 depth fbs */
1030 			if (mode_cmd->bpp == 32)
1031 				break;
1032 
1033 			DRM_ERROR("Invalid color depth/bbp: %d %d\n",
1034 				  mode_cmd->depth, mode_cmd->bpp);
1035 			return -EINVAL;
1036 		case 16:
1037 		case 15:
1038 			/* Only support 16 bpp for 16 and 15 depth fbs */
1039 			if (mode_cmd->bpp == 16)
1040 				break;
1041 
1042 			DRM_ERROR("Invalid color depth/bbp: %d %d\n",
1043 				  mode_cmd->depth, mode_cmd->bpp);
1044 			return -EINVAL;
1045 		default:
1046 			DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
1047 			return -EINVAL;
1048 		}
1049 	}
1050 
1051 	vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
1052 	if (!vfbd) {
1053 		ret = -ENOMEM;
1054 		goto out_err1;
1055 	}
1056 
1057 	ret = drm_framebuffer_init(dev, &vfbd->base.base,
1058 				   &vmw_framebuffer_dmabuf_funcs);
1059 	if (ret)
1060 		goto out_err2;
1061 
1062 	if (!vmw_dmabuf_reference(dmabuf)) {
1063 		DRM_ERROR("failed to reference dmabuf %p\n", dmabuf);
1064 		goto out_err3;
1065 	}
1066 
1067 	vfbd->base.base.bits_per_pixel = mode_cmd->bpp;
1068 	vfbd->base.base.pitches[0] = mode_cmd->pitch;
1069 	vfbd->base.base.depth = mode_cmd->depth;
1070 	vfbd->base.base.width = mode_cmd->width;
1071 	vfbd->base.base.height = mode_cmd->height;
1072 	if (!dev_priv->sou_priv) {
1073 		vfbd->base.pin = vmw_framebuffer_dmabuf_pin;
1074 		vfbd->base.unpin = vmw_framebuffer_dmabuf_unpin;
1075 	}
1076 	vfbd->base.dmabuf = true;
1077 	vfbd->buffer = dmabuf;
1078 	vfbd->base.user_handle = mode_cmd->handle;
1079 	*out = &vfbd->base;
1080 
1081 	return 0;
1082 
1083 out_err3:
1084 	drm_framebuffer_cleanup(&vfbd->base.base);
1085 out_err2:
1086 	kfree(vfbd);
1087 out_err1:
1088 	return ret;
1089 }
1090 
1091 /*
1092  * Generic Kernel modesetting functions
1093  */
1094 
vmw_kms_fb_create(struct drm_device * dev,struct drm_file * file_priv,struct drm_mode_fb_cmd2 * mode_cmd2)1095 static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
1096 						 struct drm_file *file_priv,
1097 						 struct drm_mode_fb_cmd2 *mode_cmd2)
1098 {
1099 	struct vmw_private *dev_priv = vmw_priv(dev);
1100 	struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
1101 	struct vmw_framebuffer *vfb = NULL;
1102 	struct vmw_surface *surface = NULL;
1103 	struct vmw_dma_buffer *bo = NULL;
1104 	struct ttm_base_object *user_obj;
1105 	struct drm_mode_fb_cmd mode_cmd;
1106 	int ret;
1107 
1108 	mode_cmd.width = mode_cmd2->width;
1109 	mode_cmd.height = mode_cmd2->height;
1110 	mode_cmd.pitch = mode_cmd2->pitches[0];
1111 	mode_cmd.handle = mode_cmd2->handles[0];
1112 	drm_fb_get_bpp_depth(mode_cmd2->pixel_format, &mode_cmd.depth,
1113 				    &mode_cmd.bpp);
1114 
1115 	/**
1116 	 * This code should be conditioned on Screen Objects not being used.
1117 	 * If screen objects are used, we can allocate a GMR to hold the
1118 	 * requested framebuffer.
1119 	 */
1120 
1121 	if (!vmw_kms_validate_mode_vram(dev_priv,
1122 					mode_cmd.pitch,
1123 					mode_cmd.height)) {
1124 		DRM_ERROR("VRAM size is too small for requested mode.\n");
1125 		return ERR_PTR(-ENOMEM);
1126 	}
1127 
1128 	/*
1129 	 * Take a reference on the user object of the resource
1130 	 * backing the kms fb. This ensures that user-space handle
1131 	 * lookups on that resource will always work as long as
1132 	 * it's registered with a kms framebuffer. This is important,
1133 	 * since vmw_execbuf_process identifies resources in the
1134 	 * command stream using user-space handles.
1135 	 */
1136 
1137 	user_obj = ttm_base_object_lookup(tfile, mode_cmd.handle);
1138 	if (unlikely(user_obj == NULL)) {
1139 		DRM_ERROR("Could not locate requested kms frame buffer.\n");
1140 		return ERR_PTR(-ENOENT);
1141 	}
1142 
1143 	/**
1144 	 * End conditioned code.
1145 	 */
1146 
1147 	/* returns either a dmabuf or surface */
1148 	ret = vmw_user_lookup_handle(dev_priv, tfile,
1149 				     mode_cmd.handle,
1150 				     &surface, &bo);
1151 	if (ret)
1152 		goto err_out;
1153 
1154 	/* Create the new framebuffer depending one what we got back */
1155 	if (bo)
1156 		ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb,
1157 						     &mode_cmd);
1158 	else if (surface)
1159 		ret = vmw_kms_new_framebuffer_surface(dev_priv, file_priv,
1160 						      surface, &vfb, &mode_cmd);
1161 	else
1162 		BUG();
1163 
1164 err_out:
1165 	/* vmw_user_lookup_handle takes one ref so does new_fb */
1166 	if (bo)
1167 		vmw_dmabuf_unreference(&bo);
1168 	if (surface)
1169 		vmw_surface_unreference(&surface);
1170 
1171 	if (ret) {
1172 		DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
1173 		ttm_base_object_unref(&user_obj);
1174 		return ERR_PTR(ret);
1175 	} else
1176 		vfb->user_obj = user_obj;
1177 
1178 	return &vfb->base;
1179 }
1180 
1181 static struct drm_mode_config_funcs vmw_kms_funcs = {
1182 	.fb_create = vmw_kms_fb_create,
1183 };
1184 
vmw_kms_present(struct vmw_private * dev_priv,struct drm_file * file_priv,struct vmw_framebuffer * vfb,struct vmw_surface * surface,uint32_t sid,int32_t destX,int32_t destY,struct drm_vmw_rect * clips,uint32_t num_clips)1185 int vmw_kms_present(struct vmw_private *dev_priv,
1186 		    struct drm_file *file_priv,
1187 		    struct vmw_framebuffer *vfb,
1188 		    struct vmw_surface *surface,
1189 		    uint32_t sid,
1190 		    int32_t destX, int32_t destY,
1191 		    struct drm_vmw_rect *clips,
1192 		    uint32_t num_clips)
1193 {
1194 	struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
1195 	struct drm_clip_rect *tmp;
1196 	struct drm_crtc *crtc;
1197 	size_t fifo_size;
1198 	int i, k, num_units;
1199 	int ret = 0; /* silence warning */
1200 	int left, right, top, bottom;
1201 
1202 	struct {
1203 		SVGA3dCmdHeader header;
1204 		SVGA3dCmdBlitSurfaceToScreen body;
1205 	} *cmd;
1206 	SVGASignedRect *blits;
1207 
1208 	num_units = 0;
1209 	list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1210 		if (crtc->fb != &vfb->base)
1211 			continue;
1212 		units[num_units++] = vmw_crtc_to_du(crtc);
1213 	}
1214 
1215 	BUG_ON(surface == NULL);
1216 	BUG_ON(!clips || !num_clips);
1217 
1218 	tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL);
1219 	if (unlikely(tmp == NULL)) {
1220 		DRM_ERROR("Temporary cliprect memory alloc failed.\n");
1221 		return -ENOMEM;
1222 	}
1223 
1224 	fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips;
1225 	cmd = kmalloc(fifo_size, GFP_KERNEL);
1226 	if (unlikely(cmd == NULL)) {
1227 		DRM_ERROR("Failed to allocate temporary fifo memory.\n");
1228 		ret = -ENOMEM;
1229 		goto out_free_tmp;
1230 	}
1231 
1232 	left = clips->x;
1233 	right = clips->x + clips->w;
1234 	top = clips->y;
1235 	bottom = clips->y + clips->h;
1236 
1237 	for (i = 1; i < num_clips; i++) {
1238 		left = min_t(int, left, (int)clips[i].x);
1239 		right = max_t(int, right, (int)clips[i].x + clips[i].w);
1240 		top = min_t(int, top, (int)clips[i].y);
1241 		bottom = max_t(int, bottom, (int)clips[i].y + clips[i].h);
1242 	}
1243 
1244 	/* only need to do this once */
1245 	memset(cmd, 0, fifo_size);
1246 	cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
1247 
1248 	blits = (SVGASignedRect *)&cmd[1];
1249 
1250 	cmd->body.srcRect.left = left;
1251 	cmd->body.srcRect.right = right;
1252 	cmd->body.srcRect.top = top;
1253 	cmd->body.srcRect.bottom = bottom;
1254 
1255 	for (i = 0; i < num_clips; i++) {
1256 		tmp[i].x1 = clips[i].x - left;
1257 		tmp[i].x2 = clips[i].x + clips[i].w - left;
1258 		tmp[i].y1 = clips[i].y - top;
1259 		tmp[i].y2 = clips[i].y + clips[i].h - top;
1260 	}
1261 
1262 	for (k = 0; k < num_units; k++) {
1263 		struct vmw_display_unit *unit = units[k];
1264 		struct vmw_clip_rect clip;
1265 		int num;
1266 
1267 		clip.x1 = left + destX - unit->crtc.x;
1268 		clip.y1 = top + destY - unit->crtc.y;
1269 		clip.x2 = right + destX - unit->crtc.x;
1270 		clip.y2 = bottom + destY - unit->crtc.y;
1271 
1272 		/* skip any crtcs that misses the clip region */
1273 		if (clip.x1 >= unit->crtc.mode.hdisplay ||
1274 		    clip.y1 >= unit->crtc.mode.vdisplay ||
1275 		    clip.x2 <= 0 || clip.y2 <= 0)
1276 			continue;
1277 
1278 		/*
1279 		 * In order for the clip rects to be correctly scaled
1280 		 * the src and dest rects needs to be the same size.
1281 		 */
1282 		cmd->body.destRect.left = clip.x1;
1283 		cmd->body.destRect.right = clip.x2;
1284 		cmd->body.destRect.top = clip.y1;
1285 		cmd->body.destRect.bottom = clip.y2;
1286 
1287 		/* create a clip rect of the crtc in dest coords */
1288 		clip.x2 = unit->crtc.mode.hdisplay - clip.x1;
1289 		clip.y2 = unit->crtc.mode.vdisplay - clip.y1;
1290 		clip.x1 = 0 - clip.x1;
1291 		clip.y1 = 0 - clip.y1;
1292 
1293 		/* need to reset sid as it is changed by execbuf */
1294 		cmd->body.srcImage.sid = sid;
1295 		cmd->body.destScreenId = unit->unit;
1296 
1297 		/* clip and write blits to cmd stream */
1298 		vmw_clip_cliprects(tmp, num_clips, clip, blits, &num);
1299 
1300 		/* if no cliprects hit skip this */
1301 		if (num == 0)
1302 			continue;
1303 
1304 		/* recalculate package length */
1305 		fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num;
1306 		cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
1307 		ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
1308 					  fifo_size, 0, NULL, NULL);
1309 
1310 		if (unlikely(ret != 0))
1311 			break;
1312 	}
1313 
1314 	kfree(cmd);
1315 out_free_tmp:
1316 	kfree(tmp);
1317 
1318 	return ret;
1319 }
1320 
vmw_kms_readback(struct vmw_private * dev_priv,struct drm_file * file_priv,struct vmw_framebuffer * vfb,struct drm_vmw_fence_rep __user * user_fence_rep,struct drm_vmw_rect * clips,uint32_t num_clips)1321 int vmw_kms_readback(struct vmw_private *dev_priv,
1322 		     struct drm_file *file_priv,
1323 		     struct vmw_framebuffer *vfb,
1324 		     struct drm_vmw_fence_rep __user *user_fence_rep,
1325 		     struct drm_vmw_rect *clips,
1326 		     uint32_t num_clips)
1327 {
1328 	struct vmw_framebuffer_dmabuf *vfbd =
1329 		vmw_framebuffer_to_vfbd(&vfb->base);
1330 	struct vmw_dma_buffer *dmabuf = vfbd->buffer;
1331 	struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
1332 	struct drm_crtc *crtc;
1333 	size_t fifo_size;
1334 	int i, k, ret, num_units, blits_pos;
1335 
1336 	struct {
1337 		uint32_t header;
1338 		SVGAFifoCmdDefineGMRFB body;
1339 	} *cmd;
1340 	struct {
1341 		uint32_t header;
1342 		SVGAFifoCmdBlitScreenToGMRFB body;
1343 	} *blits;
1344 
1345 	num_units = 0;
1346 	list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1347 		if (crtc->fb != &vfb->base)
1348 			continue;
1349 		units[num_units++] = vmw_crtc_to_du(crtc);
1350 	}
1351 
1352 	BUG_ON(dmabuf == NULL);
1353 	BUG_ON(!clips || !num_clips);
1354 
1355 	/* take a safe guess at fifo size */
1356 	fifo_size = sizeof(*cmd) + sizeof(*blits) * num_clips * num_units;
1357 	cmd = kmalloc(fifo_size, GFP_KERNEL);
1358 	if (unlikely(cmd == NULL)) {
1359 		DRM_ERROR("Failed to allocate temporary fifo memory.\n");
1360 		return -ENOMEM;
1361 	}
1362 
1363 	memset(cmd, 0, fifo_size);
1364 	cmd->header = SVGA_CMD_DEFINE_GMRFB;
1365 	cmd->body.format.bitsPerPixel = vfb->base.bits_per_pixel;
1366 	cmd->body.format.colorDepth = vfb->base.depth;
1367 	cmd->body.format.reserved = 0;
1368 	cmd->body.bytesPerLine = vfb->base.pitches[0];
1369 	cmd->body.ptr.gmrId = vfb->user_handle;
1370 	cmd->body.ptr.offset = 0;
1371 
1372 	blits = (void *)&cmd[1];
1373 	blits_pos = 0;
1374 	for (i = 0; i < num_units; i++) {
1375 		struct drm_vmw_rect *c = clips;
1376 		for (k = 0; k < num_clips; k++, c++) {
1377 			/* transform clip coords to crtc origin based coords */
1378 			int clip_x1 = c->x - units[i]->crtc.x;
1379 			int clip_x2 = c->x - units[i]->crtc.x + c->w;
1380 			int clip_y1 = c->y - units[i]->crtc.y;
1381 			int clip_y2 = c->y - units[i]->crtc.y + c->h;
1382 			int dest_x = c->x;
1383 			int dest_y = c->y;
1384 
1385 			/* compensate for clipping, we negate
1386 			 * a negative number and add that.
1387 			 */
1388 			if (clip_x1 < 0)
1389 				dest_x += -clip_x1;
1390 			if (clip_y1 < 0)
1391 				dest_y += -clip_y1;
1392 
1393 			/* clip */
1394 			clip_x1 = max(clip_x1, 0);
1395 			clip_y1 = max(clip_y1, 0);
1396 			clip_x2 = min(clip_x2, units[i]->crtc.mode.hdisplay);
1397 			clip_y2 = min(clip_y2, units[i]->crtc.mode.vdisplay);
1398 
1399 			/* and cull any rects that misses the crtc */
1400 			if (clip_x1 >= units[i]->crtc.mode.hdisplay ||
1401 			    clip_y1 >= units[i]->crtc.mode.vdisplay ||
1402 			    clip_x2 <= 0 || clip_y2 <= 0)
1403 				continue;
1404 
1405 			blits[blits_pos].header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB;
1406 			blits[blits_pos].body.srcScreenId = units[i]->unit;
1407 			blits[blits_pos].body.destOrigin.x = dest_x;
1408 			blits[blits_pos].body.destOrigin.y = dest_y;
1409 
1410 			blits[blits_pos].body.srcRect.left = clip_x1;
1411 			blits[blits_pos].body.srcRect.top = clip_y1;
1412 			blits[blits_pos].body.srcRect.right = clip_x2;
1413 			blits[blits_pos].body.srcRect.bottom = clip_y2;
1414 			blits_pos++;
1415 		}
1416 	}
1417 	/* reset size here and use calculated exact size from loops */
1418 	fifo_size = sizeof(*cmd) + sizeof(*blits) * blits_pos;
1419 
1420 	ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd, fifo_size,
1421 				  0, user_fence_rep, NULL);
1422 
1423 	kfree(cmd);
1424 
1425 	return ret;
1426 }
1427 
vmw_kms_init(struct vmw_private * dev_priv)1428 int vmw_kms_init(struct vmw_private *dev_priv)
1429 {
1430 	struct drm_device *dev = dev_priv->dev;
1431 	int ret;
1432 
1433 	drm_mode_config_init(dev);
1434 	dev->mode_config.funcs = &vmw_kms_funcs;
1435 	dev->mode_config.min_width = 1;
1436 	dev->mode_config.min_height = 1;
1437 	/* assumed largest fb size */
1438 	dev->mode_config.max_width = 8192;
1439 	dev->mode_config.max_height = 8192;
1440 
1441 	ret = vmw_kms_init_screen_object_display(dev_priv);
1442 	if (ret) /* Fallback */
1443 		(void)vmw_kms_init_legacy_display_system(dev_priv);
1444 
1445 	return 0;
1446 }
1447 
vmw_kms_close(struct vmw_private * dev_priv)1448 int vmw_kms_close(struct vmw_private *dev_priv)
1449 {
1450 	/*
1451 	 * Docs says we should take the lock before calling this function
1452 	 * but since it destroys encoders and our destructor calls
1453 	 * drm_encoder_cleanup which takes the lock we deadlock.
1454 	 */
1455 	drm_mode_config_cleanup(dev_priv->dev);
1456 	if (dev_priv->sou_priv)
1457 		vmw_kms_close_screen_object_display(dev_priv);
1458 	else
1459 		vmw_kms_close_legacy_display_system(dev_priv);
1460 	return 0;
1461 }
1462 
vmw_kms_cursor_bypass_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)1463 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1464 				struct drm_file *file_priv)
1465 {
1466 	struct drm_vmw_cursor_bypass_arg *arg = data;
1467 	struct vmw_display_unit *du;
1468 	struct drm_mode_object *obj;
1469 	struct drm_crtc *crtc;
1470 	int ret = 0;
1471 
1472 
1473 	mutex_lock(&dev->mode_config.mutex);
1474 	if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
1475 
1476 		list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1477 			du = vmw_crtc_to_du(crtc);
1478 			du->hotspot_x = arg->xhot;
1479 			du->hotspot_y = arg->yhot;
1480 		}
1481 
1482 		mutex_unlock(&dev->mode_config.mutex);
1483 		return 0;
1484 	}
1485 
1486 	obj = drm_mode_object_find(dev, arg->crtc_id, DRM_MODE_OBJECT_CRTC);
1487 	if (!obj) {
1488 		ret = -EINVAL;
1489 		goto out;
1490 	}
1491 
1492 	crtc = obj_to_crtc(obj);
1493 	du = vmw_crtc_to_du(crtc);
1494 
1495 	du->hotspot_x = arg->xhot;
1496 	du->hotspot_y = arg->yhot;
1497 
1498 out:
1499 	mutex_unlock(&dev->mode_config.mutex);
1500 
1501 	return ret;
1502 }
1503 
vmw_kms_write_svga(struct vmw_private * vmw_priv,unsigned width,unsigned height,unsigned pitch,unsigned bpp,unsigned depth)1504 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1505 			unsigned width, unsigned height, unsigned pitch,
1506 			unsigned bpp, unsigned depth)
1507 {
1508 	if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1509 		vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
1510 	else if (vmw_fifo_have_pitchlock(vmw_priv))
1511 		iowrite32(pitch, vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1512 	vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
1513 	vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
1514 	vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp);
1515 
1516 	if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) {
1517 		DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n",
1518 			  depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH));
1519 		return -EINVAL;
1520 	}
1521 
1522 	return 0;
1523 }
1524 
vmw_kms_save_vga(struct vmw_private * vmw_priv)1525 int vmw_kms_save_vga(struct vmw_private *vmw_priv)
1526 {
1527 	struct vmw_vga_topology_state *save;
1528 	uint32_t i;
1529 
1530 	vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH);
1531 	vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT);
1532 	vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL);
1533 	if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1534 		vmw_priv->vga_pitchlock =
1535 		  vmw_read(vmw_priv, SVGA_REG_PITCHLOCK);
1536 	else if (vmw_fifo_have_pitchlock(vmw_priv))
1537 		vmw_priv->vga_pitchlock = ioread32(vmw_priv->mmio_virt +
1538 						       SVGA_FIFO_PITCHLOCK);
1539 
1540 	if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1541 		return 0;
1542 
1543 	vmw_priv->num_displays = vmw_read(vmw_priv,
1544 					  SVGA_REG_NUM_GUEST_DISPLAYS);
1545 
1546 	if (vmw_priv->num_displays == 0)
1547 		vmw_priv->num_displays = 1;
1548 
1549 	for (i = 0; i < vmw_priv->num_displays; ++i) {
1550 		save = &vmw_priv->vga_save[i];
1551 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1552 		save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY);
1553 		save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X);
1554 		save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y);
1555 		save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH);
1556 		save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT);
1557 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1558 		if (i == 0 && vmw_priv->num_displays == 1 &&
1559 		    save->width == 0 && save->height == 0) {
1560 
1561 			/*
1562 			 * It should be fairly safe to assume that these
1563 			 * values are uninitialized.
1564 			 */
1565 
1566 			save->width = vmw_priv->vga_width - save->pos_x;
1567 			save->height = vmw_priv->vga_height - save->pos_y;
1568 		}
1569 	}
1570 
1571 	return 0;
1572 }
1573 
vmw_kms_restore_vga(struct vmw_private * vmw_priv)1574 int vmw_kms_restore_vga(struct vmw_private *vmw_priv)
1575 {
1576 	struct vmw_vga_topology_state *save;
1577 	uint32_t i;
1578 
1579 	vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width);
1580 	vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height);
1581 	vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp);
1582 	if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1583 		vmw_write(vmw_priv, SVGA_REG_PITCHLOCK,
1584 			  vmw_priv->vga_pitchlock);
1585 	else if (vmw_fifo_have_pitchlock(vmw_priv))
1586 		iowrite32(vmw_priv->vga_pitchlock,
1587 			  vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1588 
1589 	if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1590 		return 0;
1591 
1592 	for (i = 0; i < vmw_priv->num_displays; ++i) {
1593 		save = &vmw_priv->vga_save[i];
1594 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1595 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary);
1596 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x);
1597 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y);
1598 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width);
1599 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height);
1600 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1601 	}
1602 
1603 	return 0;
1604 }
1605 
vmw_kms_validate_mode_vram(struct vmw_private * dev_priv,uint32_t pitch,uint32_t height)1606 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1607 				uint32_t pitch,
1608 				uint32_t height)
1609 {
1610 	return ((u64) pitch * (u64) height) < (u64) dev_priv->vram_size;
1611 }
1612 
1613 
1614 /**
1615  * Function called by DRM code called with vbl_lock held.
1616  */
vmw_get_vblank_counter(struct drm_device * dev,int crtc)1617 u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc)
1618 {
1619 	return 0;
1620 }
1621 
1622 /**
1623  * Function called by DRM code called with vbl_lock held.
1624  */
vmw_enable_vblank(struct drm_device * dev,int crtc)1625 int vmw_enable_vblank(struct drm_device *dev, int crtc)
1626 {
1627 	return -ENOSYS;
1628 }
1629 
1630 /**
1631  * Function called by DRM code called with vbl_lock held.
1632  */
vmw_disable_vblank(struct drm_device * dev,int crtc)1633 void vmw_disable_vblank(struct drm_device *dev, int crtc)
1634 {
1635 }
1636 
1637 
1638 /*
1639  * Small shared kms functions.
1640  */
1641 
vmw_du_update_layout(struct vmw_private * dev_priv,unsigned num,struct drm_vmw_rect * rects)1642 int vmw_du_update_layout(struct vmw_private *dev_priv, unsigned num,
1643 			 struct drm_vmw_rect *rects)
1644 {
1645 	struct drm_device *dev = dev_priv->dev;
1646 	struct vmw_display_unit *du;
1647 	struct drm_connector *con;
1648 
1649 	mutex_lock(&dev->mode_config.mutex);
1650 
1651 #if 0
1652 	{
1653 		unsigned int i;
1654 
1655 		DRM_INFO("%s: new layout ", __func__);
1656 		for (i = 0; i < num; i++)
1657 			DRM_INFO("(%i, %i %ux%u) ", rects[i].x, rects[i].y,
1658 				 rects[i].w, rects[i].h);
1659 		DRM_INFO("\n");
1660 	}
1661 #endif
1662 
1663 	list_for_each_entry(con, &dev->mode_config.connector_list, head) {
1664 		du = vmw_connector_to_du(con);
1665 		if (num > du->unit) {
1666 			du->pref_width = rects[du->unit].w;
1667 			du->pref_height = rects[du->unit].h;
1668 			du->pref_active = true;
1669 			du->gui_x = rects[du->unit].x;
1670 			du->gui_y = rects[du->unit].y;
1671 		} else {
1672 			du->pref_width = 800;
1673 			du->pref_height = 600;
1674 			du->pref_active = false;
1675 		}
1676 		con->status = vmw_du_connector_detect(con, true);
1677 	}
1678 
1679 	mutex_unlock(&dev->mode_config.mutex);
1680 
1681 	return 0;
1682 }
1683 
vmw_du_page_flip(struct drm_crtc * crtc,struct drm_framebuffer * fb,struct drm_pending_vblank_event * event)1684 int vmw_du_page_flip(struct drm_crtc *crtc,
1685 		     struct drm_framebuffer *fb,
1686 		     struct drm_pending_vblank_event *event)
1687 {
1688 	struct vmw_private *dev_priv = vmw_priv(crtc->dev);
1689 	struct drm_framebuffer *old_fb = crtc->fb;
1690 	struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(fb);
1691 	struct drm_file *file_priv ;
1692 	struct vmw_fence_obj *fence = NULL;
1693 	struct drm_clip_rect clips;
1694 	int ret;
1695 
1696 	if (event == NULL)
1697 		return -EINVAL;
1698 
1699 	/* require ScreenObject support for page flipping */
1700 	if (!dev_priv->sou_priv)
1701 		return -ENOSYS;
1702 
1703 	file_priv = event->base.file_priv;
1704 	if (!vmw_kms_screen_object_flippable(dev_priv, crtc))
1705 		return -EINVAL;
1706 
1707 	crtc->fb = fb;
1708 
1709 	/* do a full screen dirty update */
1710 	clips.x1 = clips.y1 = 0;
1711 	clips.x2 = fb->width;
1712 	clips.y2 = fb->height;
1713 
1714 	if (vfb->dmabuf)
1715 		ret = do_dmabuf_dirty_sou(file_priv, dev_priv, vfb,
1716 					  0, 0, &clips, 1, 1, &fence);
1717 	else
1718 		ret = do_surface_dirty_sou(dev_priv, file_priv, vfb,
1719 					   0, 0, &clips, 1, 1, &fence);
1720 
1721 
1722 	if (ret != 0)
1723 		goto out_no_fence;
1724 	if (!fence) {
1725 		ret = -EINVAL;
1726 		goto out_no_fence;
1727 	}
1728 
1729 	ret = vmw_event_fence_action_queue(file_priv, fence,
1730 					   &event->base,
1731 					   &event->event.tv_sec,
1732 					   &event->event.tv_usec,
1733 					   true);
1734 
1735 	/*
1736 	 * No need to hold on to this now. The only cleanup
1737 	 * we need to do if we fail is unref the fence.
1738 	 */
1739 	vmw_fence_obj_unreference(&fence);
1740 
1741 	if (vmw_crtc_to_du(crtc)->is_implicit)
1742 		vmw_kms_screen_object_update_implicit_fb(dev_priv, crtc);
1743 
1744 	return ret;
1745 
1746 out_no_fence:
1747 	crtc->fb = old_fb;
1748 	return ret;
1749 }
1750 
1751 
vmw_du_crtc_save(struct drm_crtc * crtc)1752 void vmw_du_crtc_save(struct drm_crtc *crtc)
1753 {
1754 }
1755 
vmw_du_crtc_restore(struct drm_crtc * crtc)1756 void vmw_du_crtc_restore(struct drm_crtc *crtc)
1757 {
1758 }
1759 
vmw_du_crtc_gamma_set(struct drm_crtc * crtc,u16 * r,u16 * g,u16 * b,uint32_t start,uint32_t size)1760 void vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
1761 			   u16 *r, u16 *g, u16 *b,
1762 			   uint32_t start, uint32_t size)
1763 {
1764 	struct vmw_private *dev_priv = vmw_priv(crtc->dev);
1765 	int i;
1766 
1767 	for (i = 0; i < size; i++) {
1768 		DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
1769 			  r[i], g[i], b[i]);
1770 		vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
1771 		vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
1772 		vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
1773 	}
1774 }
1775 
vmw_du_connector_dpms(struct drm_connector * connector,int mode)1776 void vmw_du_connector_dpms(struct drm_connector *connector, int mode)
1777 {
1778 }
1779 
vmw_du_connector_save(struct drm_connector * connector)1780 void vmw_du_connector_save(struct drm_connector *connector)
1781 {
1782 }
1783 
vmw_du_connector_restore(struct drm_connector * connector)1784 void vmw_du_connector_restore(struct drm_connector *connector)
1785 {
1786 }
1787 
1788 enum drm_connector_status
vmw_du_connector_detect(struct drm_connector * connector,bool force)1789 vmw_du_connector_detect(struct drm_connector *connector, bool force)
1790 {
1791 	uint32_t num_displays;
1792 	struct drm_device *dev = connector->dev;
1793 	struct vmw_private *dev_priv = vmw_priv(dev);
1794 	struct vmw_display_unit *du = vmw_connector_to_du(connector);
1795 
1796 	mutex_lock(&dev_priv->hw_mutex);
1797 	num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
1798 	mutex_unlock(&dev_priv->hw_mutex);
1799 
1800 	return ((vmw_connector_to_du(connector)->unit < num_displays &&
1801 		 du->pref_active) ?
1802 		connector_status_connected : connector_status_disconnected);
1803 }
1804 
1805 static struct drm_display_mode vmw_kms_connector_builtin[] = {
1806 	/* 640x480@60Hz */
1807 	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
1808 		   752, 800, 0, 480, 489, 492, 525, 0,
1809 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1810 	/* 800x600@60Hz */
1811 	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
1812 		   968, 1056, 0, 600, 601, 605, 628, 0,
1813 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1814 	/* 1024x768@60Hz */
1815 	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
1816 		   1184, 1344, 0, 768, 771, 777, 806, 0,
1817 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1818 	/* 1152x864@75Hz */
1819 	{ DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
1820 		   1344, 1600, 0, 864, 865, 868, 900, 0,
1821 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1822 	/* 1280x768@60Hz */
1823 	{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
1824 		   1472, 1664, 0, 768, 771, 778, 798, 0,
1825 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1826 	/* 1280x800@60Hz */
1827 	{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
1828 		   1480, 1680, 0, 800, 803, 809, 831, 0,
1829 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
1830 	/* 1280x960@60Hz */
1831 	{ DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
1832 		   1488, 1800, 0, 960, 961, 964, 1000, 0,
1833 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1834 	/* 1280x1024@60Hz */
1835 	{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
1836 		   1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
1837 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1838 	/* 1360x768@60Hz */
1839 	{ DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
1840 		   1536, 1792, 0, 768, 771, 777, 795, 0,
1841 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1842 	/* 1440x1050@60Hz */
1843 	{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
1844 		   1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
1845 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1846 	/* 1440x900@60Hz */
1847 	{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
1848 		   1672, 1904, 0, 900, 903, 909, 934, 0,
1849 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1850 	/* 1600x1200@60Hz */
1851 	{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
1852 		   1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
1853 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1854 	/* 1680x1050@60Hz */
1855 	{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
1856 		   1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
1857 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1858 	/* 1792x1344@60Hz */
1859 	{ DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
1860 		   2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
1861 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1862 	/* 1853x1392@60Hz */
1863 	{ DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
1864 		   2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
1865 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1866 	/* 1920x1200@60Hz */
1867 	{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
1868 		   2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
1869 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1870 	/* 1920x1440@60Hz */
1871 	{ DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
1872 		   2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
1873 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1874 	/* 2560x1600@60Hz */
1875 	{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
1876 		   3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
1877 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1878 	/* Terminate */
1879 	{ DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
1880 };
1881 
1882 /**
1883  * vmw_guess_mode_timing - Provide fake timings for a
1884  * 60Hz vrefresh mode.
1885  *
1886  * @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay
1887  * members filled in.
1888  */
vmw_guess_mode_timing(struct drm_display_mode * mode)1889 static void vmw_guess_mode_timing(struct drm_display_mode *mode)
1890 {
1891 	mode->hsync_start = mode->hdisplay + 50;
1892 	mode->hsync_end = mode->hsync_start + 50;
1893 	mode->htotal = mode->hsync_end + 50;
1894 
1895 	mode->vsync_start = mode->vdisplay + 50;
1896 	mode->vsync_end = mode->vsync_start + 50;
1897 	mode->vtotal = mode->vsync_end + 50;
1898 
1899 	mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
1900 	mode->vrefresh = drm_mode_vrefresh(mode);
1901 }
1902 
1903 
vmw_du_connector_fill_modes(struct drm_connector * connector,uint32_t max_width,uint32_t max_height)1904 int vmw_du_connector_fill_modes(struct drm_connector *connector,
1905 				uint32_t max_width, uint32_t max_height)
1906 {
1907 	struct vmw_display_unit *du = vmw_connector_to_du(connector);
1908 	struct drm_device *dev = connector->dev;
1909 	struct vmw_private *dev_priv = vmw_priv(dev);
1910 	struct drm_display_mode *mode = NULL;
1911 	struct drm_display_mode *bmode;
1912 	struct drm_display_mode prefmode = { DRM_MODE("preferred",
1913 		DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
1914 		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1915 		DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
1916 	};
1917 	int i;
1918 
1919 	/* Add preferred mode */
1920 	{
1921 		mode = drm_mode_duplicate(dev, &prefmode);
1922 		if (!mode)
1923 			return 0;
1924 		mode->hdisplay = du->pref_width;
1925 		mode->vdisplay = du->pref_height;
1926 		vmw_guess_mode_timing(mode);
1927 
1928 		if (vmw_kms_validate_mode_vram(dev_priv, mode->hdisplay * 2,
1929 					       mode->vdisplay)) {
1930 			drm_mode_probed_add(connector, mode);
1931 		} else {
1932 			drm_mode_destroy(dev, mode);
1933 			mode = NULL;
1934 		}
1935 
1936 		if (du->pref_mode) {
1937 			list_del_init(&du->pref_mode->head);
1938 			drm_mode_destroy(dev, du->pref_mode);
1939 		}
1940 
1941 		/* mode might be null here, this is intended */
1942 		du->pref_mode = mode;
1943 	}
1944 
1945 	for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) {
1946 		bmode = &vmw_kms_connector_builtin[i];
1947 		if (bmode->hdisplay > max_width ||
1948 		    bmode->vdisplay > max_height)
1949 			continue;
1950 
1951 		if (!vmw_kms_validate_mode_vram(dev_priv, bmode->hdisplay * 2,
1952 						bmode->vdisplay))
1953 			continue;
1954 
1955 		mode = drm_mode_duplicate(dev, bmode);
1956 		if (!mode)
1957 			return 0;
1958 		mode->vrefresh = drm_mode_vrefresh(mode);
1959 
1960 		drm_mode_probed_add(connector, mode);
1961 	}
1962 
1963 	/* Move the prefered mode first, help apps pick the right mode. */
1964 	if (du->pref_mode)
1965 		list_move(&du->pref_mode->head, &connector->probed_modes);
1966 
1967 	drm_mode_connector_list_update(connector);
1968 
1969 	return 1;
1970 }
1971 
vmw_du_connector_set_property(struct drm_connector * connector,struct drm_property * property,uint64_t val)1972 int vmw_du_connector_set_property(struct drm_connector *connector,
1973 				  struct drm_property *property,
1974 				  uint64_t val)
1975 {
1976 	return 0;
1977 }
1978 
1979 
vmw_kms_update_layout_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)1980 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
1981 				struct drm_file *file_priv)
1982 {
1983 	struct vmw_private *dev_priv = vmw_priv(dev);
1984 	struct drm_vmw_update_layout_arg *arg =
1985 		(struct drm_vmw_update_layout_arg *)data;
1986 	struct vmw_master *vmaster = vmw_master(file_priv->master);
1987 	void __user *user_rects;
1988 	struct drm_vmw_rect *rects;
1989 	unsigned rects_size;
1990 	int ret;
1991 	int i;
1992 	struct drm_mode_config *mode_config = &dev->mode_config;
1993 
1994 	ret = ttm_read_lock(&vmaster->lock, true);
1995 	if (unlikely(ret != 0))
1996 		return ret;
1997 
1998 	if (!arg->num_outputs) {
1999 		struct drm_vmw_rect def_rect = {0, 0, 800, 600};
2000 		vmw_du_update_layout(dev_priv, 1, &def_rect);
2001 		goto out_unlock;
2002 	}
2003 
2004 	rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
2005 	rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect),
2006 			GFP_KERNEL);
2007 	if (unlikely(!rects)) {
2008 		ret = -ENOMEM;
2009 		goto out_unlock;
2010 	}
2011 
2012 	user_rects = (void __user *)(unsigned long)arg->rects;
2013 	ret = copy_from_user(rects, user_rects, rects_size);
2014 	if (unlikely(ret != 0)) {
2015 		DRM_ERROR("Failed to get rects.\n");
2016 		ret = -EFAULT;
2017 		goto out_free;
2018 	}
2019 
2020 	for (i = 0; i < arg->num_outputs; ++i) {
2021 		if (rects[i].x < 0 ||
2022 		    rects[i].y < 0 ||
2023 		    rects[i].x + rects[i].w > mode_config->max_width ||
2024 		    rects[i].y + rects[i].h > mode_config->max_height) {
2025 			DRM_ERROR("Invalid GUI layout.\n");
2026 			ret = -EINVAL;
2027 			goto out_free;
2028 		}
2029 	}
2030 
2031 	vmw_du_update_layout(dev_priv, arg->num_outputs, rects);
2032 
2033 out_free:
2034 	kfree(rects);
2035 out_unlock:
2036 	ttm_read_unlock(&vmaster->lock);
2037 	return ret;
2038 }
2039