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
35struct 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 */
43static 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
72void 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_connector_unregister(&du->connector);
79	drm_crtc_cleanup(&du->crtc);
80	drm_encoder_cleanup(&du->encoder);
81	drm_connector_cleanup(&du->connector);
82}
83
84/*
85 * Display Unit Cursor functions
86 */
87
88int vmw_cursor_update_image(struct vmw_private *dev_priv,
89			    u32 *image, u32 width, u32 height,
90			    u32 hotspotX, u32 hotspotY)
91{
92	struct {
93		u32 cmd;
94		SVGAFifoCmdDefineAlphaCursor cursor;
95	} *cmd;
96	u32 image_size = width * height * 4;
97	u32 cmd_size = sizeof(*cmd) + image_size;
98
99	if (!image)
100		return -EINVAL;
101
102	cmd = vmw_fifo_reserve(dev_priv, cmd_size);
103	if (unlikely(cmd == NULL)) {
104		DRM_ERROR("Fifo reserve failed.\n");
105		return -ENOMEM;
106	}
107
108	memset(cmd, 0, sizeof(*cmd));
109
110	memcpy(&cmd[1], image, image_size);
111
112	cmd->cmd = cpu_to_le32(SVGA_CMD_DEFINE_ALPHA_CURSOR);
113	cmd->cursor.id = cpu_to_le32(0);
114	cmd->cursor.width = cpu_to_le32(width);
115	cmd->cursor.height = cpu_to_le32(height);
116	cmd->cursor.hotspotX = cpu_to_le32(hotspotX);
117	cmd->cursor.hotspotY = cpu_to_le32(hotspotY);
118
119	vmw_fifo_commit(dev_priv, cmd_size);
120
121	return 0;
122}
123
124int vmw_cursor_update_dmabuf(struct vmw_private *dev_priv,
125			     struct vmw_dma_buffer *dmabuf,
126			     u32 width, u32 height,
127			     u32 hotspotX, u32 hotspotY)
128{
129	struct ttm_bo_kmap_obj map;
130	unsigned long kmap_offset;
131	unsigned long kmap_num;
132	void *virtual;
133	bool dummy;
134	int ret;
135
136	kmap_offset = 0;
137	kmap_num = (width*height*4 + PAGE_SIZE - 1) >> PAGE_SHIFT;
138
139	ret = ttm_bo_reserve(&dmabuf->base, true, false, false, NULL);
140	if (unlikely(ret != 0)) {
141		DRM_ERROR("reserve failed\n");
142		return -EINVAL;
143	}
144
145	ret = ttm_bo_kmap(&dmabuf->base, kmap_offset, kmap_num, &map);
146	if (unlikely(ret != 0))
147		goto err_unreserve;
148
149	virtual = ttm_kmap_obj_virtual(&map, &dummy);
150	ret = vmw_cursor_update_image(dev_priv, virtual, width, height,
151				      hotspotX, hotspotY);
152
153	ttm_bo_kunmap(&map);
154err_unreserve:
155	ttm_bo_unreserve(&dmabuf->base);
156
157	return ret;
158}
159
160
161void vmw_cursor_update_position(struct vmw_private *dev_priv,
162				bool show, int x, int y)
163{
164	__le32 __iomem *fifo_mem = dev_priv->mmio_virt;
165	uint32_t count;
166
167	iowrite32(show ? 1 : 0, fifo_mem + SVGA_FIFO_CURSOR_ON);
168	iowrite32(x, fifo_mem + SVGA_FIFO_CURSOR_X);
169	iowrite32(y, fifo_mem + SVGA_FIFO_CURSOR_Y);
170	count = ioread32(fifo_mem + SVGA_FIFO_CURSOR_COUNT);
171	iowrite32(++count, fifo_mem + SVGA_FIFO_CURSOR_COUNT);
172}
173
174int vmw_du_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
175			   uint32_t handle, uint32_t width, uint32_t height)
176{
177	struct vmw_private *dev_priv = vmw_priv(crtc->dev);
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	/*
184	 * FIXME: Unclear whether there's any global state touched by the
185	 * cursor_set function, especially vmw_cursor_update_position looks
186	 * suspicious. For now take the easy route and reacquire all locks. We
187	 * can do this since the caller in the drm core doesn't check anything
188	 * which is protected by any looks.
189	 */
190	drm_modeset_unlock_crtc(crtc);
191	drm_modeset_lock_all(dev_priv->dev);
192
193	/* A lot of the code assumes this */
194	if (handle && (width != 64 || height != 64)) {
195		ret = -EINVAL;
196		goto out;
197	}
198
199	if (handle) {
200		struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
201
202		ret = vmw_user_lookup_handle(dev_priv, tfile,
203					     handle, &surface, &dmabuf);
204		if (ret) {
205			DRM_ERROR("failed to find surface or dmabuf: %i\n", ret);
206			ret = -EINVAL;
207			goto out;
208		}
209	}
210
211	/* need to do this before taking down old image */
212	if (surface && !surface->snooper.image) {
213		DRM_ERROR("surface not suitable for cursor\n");
214		vmw_surface_unreference(&surface);
215		ret = -EINVAL;
216		goto out;
217	}
218
219	/* takedown old cursor */
220	if (du->cursor_surface) {
221		du->cursor_surface->snooper.crtc = NULL;
222		vmw_surface_unreference(&du->cursor_surface);
223	}
224	if (du->cursor_dmabuf)
225		vmw_dmabuf_unreference(&du->cursor_dmabuf);
226
227	/* setup new image */
228	if (surface) {
229		/* vmw_user_surface_lookup takes one reference */
230		du->cursor_surface = surface;
231
232		du->cursor_surface->snooper.crtc = crtc;
233		du->cursor_age = du->cursor_surface->snooper.age;
234		vmw_cursor_update_image(dev_priv, surface->snooper.image,
235					64, 64, du->hotspot_x, du->hotspot_y);
236	} else if (dmabuf) {
237		/* vmw_user_surface_lookup takes one reference */
238		du->cursor_dmabuf = dmabuf;
239
240		ret = vmw_cursor_update_dmabuf(dev_priv, dmabuf, width, height,
241					       du->hotspot_x, du->hotspot_y);
242	} else {
243		vmw_cursor_update_position(dev_priv, false, 0, 0);
244		ret = 0;
245		goto out;
246	}
247
248	vmw_cursor_update_position(dev_priv, true,
249				   du->cursor_x + du->hotspot_x,
250				   du->cursor_y + du->hotspot_y);
251
252	ret = 0;
253out:
254	drm_modeset_unlock_all(dev_priv->dev);
255	drm_modeset_lock_crtc(crtc, crtc->cursor);
256
257	return ret;
258}
259
260int vmw_du_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
261{
262	struct vmw_private *dev_priv = vmw_priv(crtc->dev);
263	struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
264	bool shown = du->cursor_surface || du->cursor_dmabuf ? true : false;
265
266	du->cursor_x = x + crtc->x;
267	du->cursor_y = y + crtc->y;
268
269	/*
270	 * FIXME: Unclear whether there's any global state touched by the
271	 * cursor_set function, especially vmw_cursor_update_position looks
272	 * suspicious. For now take the easy route and reacquire all locks. We
273	 * can do this since the caller in the drm core doesn't check anything
274	 * which is protected by any looks.
275	 */
276	drm_modeset_unlock_crtc(crtc);
277	drm_modeset_lock_all(dev_priv->dev);
278
279	vmw_cursor_update_position(dev_priv, shown,
280				   du->cursor_x + du->hotspot_x,
281				   du->cursor_y + du->hotspot_y);
282
283	drm_modeset_unlock_all(dev_priv->dev);
284	drm_modeset_lock_crtc(crtc, crtc->cursor);
285
286	return 0;
287}
288
289void vmw_kms_cursor_snoop(struct vmw_surface *srf,
290			  struct ttm_object_file *tfile,
291			  struct ttm_buffer_object *bo,
292			  SVGA3dCmdHeader *header)
293{
294	struct ttm_bo_kmap_obj map;
295	unsigned long kmap_offset;
296	unsigned long kmap_num;
297	SVGA3dCopyBox *box;
298	unsigned box_count;
299	void *virtual;
300	bool dummy;
301	struct vmw_dma_cmd {
302		SVGA3dCmdHeader header;
303		SVGA3dCmdSurfaceDMA dma;
304	} *cmd;
305	int i, ret;
306
307	cmd = container_of(header, struct vmw_dma_cmd, header);
308
309	/* No snooper installed */
310	if (!srf->snooper.image)
311		return;
312
313	if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
314		DRM_ERROR("face and mipmap for cursors should never != 0\n");
315		return;
316	}
317
318	if (cmd->header.size < 64) {
319		DRM_ERROR("at least one full copy box must be given\n");
320		return;
321	}
322
323	box = (SVGA3dCopyBox *)&cmd[1];
324	box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
325			sizeof(SVGA3dCopyBox);
326
327	if (cmd->dma.guest.ptr.offset % PAGE_SIZE ||
328	    box->x != 0    || box->y != 0    || box->z != 0    ||
329	    box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
330	    box->d != 1    || box_count != 1) {
331		/* TODO handle none page aligned offsets */
332		/* TODO handle more dst & src != 0 */
333		/* TODO handle more then one copy */
334		DRM_ERROR("Cant snoop dma request for cursor!\n");
335		DRM_ERROR("(%u, %u, %u) (%u, %u, %u) (%ux%ux%u) %u %u\n",
336			  box->srcx, box->srcy, box->srcz,
337			  box->x, box->y, box->z,
338			  box->w, box->h, box->d, box_count,
339			  cmd->dma.guest.ptr.offset);
340		return;
341	}
342
343	kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
344	kmap_num = (64*64*4) >> PAGE_SHIFT;
345
346	ret = ttm_bo_reserve(bo, true, false, false, NULL);
347	if (unlikely(ret != 0)) {
348		DRM_ERROR("reserve failed\n");
349		return;
350	}
351
352	ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
353	if (unlikely(ret != 0))
354		goto err_unreserve;
355
356	virtual = ttm_kmap_obj_virtual(&map, &dummy);
357
358	if (box->w == 64 && cmd->dma.guest.pitch == 64*4) {
359		memcpy(srf->snooper.image, virtual, 64*64*4);
360	} else {
361		/* Image is unsigned pointer. */
362		for (i = 0; i < box->h; i++)
363			memcpy(srf->snooper.image + i * 64,
364			       virtual + i * cmd->dma.guest.pitch,
365			       box->w * 4);
366	}
367
368	srf->snooper.age++;
369
370	/* we can't call this function from this function since execbuf has
371	 * reserved fifo space.
372	 *
373	 * if (srf->snooper.crtc)
374	 *	vmw_ldu_crtc_cursor_update_image(dev_priv,
375	 *					 srf->snooper.image, 64, 64,
376	 *					 du->hotspot_x, du->hotspot_y);
377	 */
378
379	ttm_bo_kunmap(&map);
380err_unreserve:
381	ttm_bo_unreserve(bo);
382}
383
384void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
385{
386	struct drm_device *dev = dev_priv->dev;
387	struct vmw_display_unit *du;
388	struct drm_crtc *crtc;
389
390	mutex_lock(&dev->mode_config.mutex);
391
392	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
393		du = vmw_crtc_to_du(crtc);
394		if (!du->cursor_surface ||
395		    du->cursor_age == du->cursor_surface->snooper.age)
396			continue;
397
398		du->cursor_age = du->cursor_surface->snooper.age;
399		vmw_cursor_update_image(dev_priv,
400					du->cursor_surface->snooper.image,
401					64, 64, du->hotspot_x, du->hotspot_y);
402	}
403
404	mutex_unlock(&dev->mode_config.mutex);
405}
406
407/*
408 * Generic framebuffer code
409 */
410
411/*
412 * Surface framebuffer code
413 */
414
415#define vmw_framebuffer_to_vfbs(x) \
416	container_of(x, struct vmw_framebuffer_surface, base.base)
417
418struct vmw_framebuffer_surface {
419	struct vmw_framebuffer base;
420	struct vmw_surface *surface;
421	struct vmw_dma_buffer *buffer;
422	struct list_head head;
423	struct drm_master *master;
424};
425
426static void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
427{
428	struct vmw_framebuffer_surface *vfbs =
429		vmw_framebuffer_to_vfbs(framebuffer);
430	struct vmw_master *vmaster = vmw_master(vfbs->master);
431
432
433	mutex_lock(&vmaster->fb_surf_mutex);
434	list_del(&vfbs->head);
435	mutex_unlock(&vmaster->fb_surf_mutex);
436
437	drm_master_put(&vfbs->master);
438	drm_framebuffer_cleanup(framebuffer);
439	vmw_surface_unreference(&vfbs->surface);
440	ttm_base_object_unref(&vfbs->base.user_obj);
441
442	kfree(vfbs);
443}
444
445static int do_surface_dirty_sou(struct vmw_private *dev_priv,
446				struct drm_file *file_priv,
447				struct vmw_framebuffer *framebuffer,
448				unsigned flags, unsigned color,
449				struct drm_clip_rect *clips,
450				unsigned num_clips, int inc,
451				struct vmw_fence_obj **out_fence)
452{
453	struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
454	struct drm_clip_rect *clips_ptr;
455	struct drm_clip_rect *tmp;
456	struct drm_crtc *crtc;
457	size_t fifo_size;
458	int i, num_units;
459	int ret = 0; /* silence warning */
460	int left, right, top, bottom;
461
462	struct {
463		SVGA3dCmdHeader header;
464		SVGA3dCmdBlitSurfaceToScreen body;
465	} *cmd;
466	SVGASignedRect *blits;
467
468	num_units = 0;
469	list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list,
470			    head) {
471		if (crtc->primary->fb != &framebuffer->base)
472			continue;
473		units[num_units++] = vmw_crtc_to_du(crtc);
474	}
475
476	BUG_ON(!clips || !num_clips);
477
478	tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL);
479	if (unlikely(tmp == NULL)) {
480		DRM_ERROR("Temporary cliprect memory alloc failed.\n");
481		return -ENOMEM;
482	}
483
484	fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips;
485	cmd = kzalloc(fifo_size, GFP_KERNEL);
486	if (unlikely(cmd == NULL)) {
487		DRM_ERROR("Temporary fifo memory alloc failed.\n");
488		ret = -ENOMEM;
489		goto out_free_tmp;
490	}
491
492	/* setup blits pointer */
493	blits = (SVGASignedRect *)&cmd[1];
494
495	/* initial clip region */
496	left = clips->x1;
497	right = clips->x2;
498	top = clips->y1;
499	bottom = clips->y2;
500
501	/* skip the first clip rect */
502	for (i = 1, clips_ptr = clips + inc;
503	     i < num_clips; i++, clips_ptr += inc) {
504		left = min_t(int, left, (int)clips_ptr->x1);
505		right = max_t(int, right, (int)clips_ptr->x2);
506		top = min_t(int, top, (int)clips_ptr->y1);
507		bottom = max_t(int, bottom, (int)clips_ptr->y2);
508	}
509
510	/* only need to do this once */
511	cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
512	cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
513
514	cmd->body.srcRect.left = left;
515	cmd->body.srcRect.right = right;
516	cmd->body.srcRect.top = top;
517	cmd->body.srcRect.bottom = bottom;
518
519	clips_ptr = clips;
520	for (i = 0; i < num_clips; i++, clips_ptr += inc) {
521		tmp[i].x1 = clips_ptr->x1 - left;
522		tmp[i].x2 = clips_ptr->x2 - left;
523		tmp[i].y1 = clips_ptr->y1 - top;
524		tmp[i].y2 = clips_ptr->y2 - top;
525	}
526
527	/* do per unit writing, reuse fifo for each */
528	for (i = 0; i < num_units; i++) {
529		struct vmw_display_unit *unit = units[i];
530		struct vmw_clip_rect clip;
531		int num;
532
533		clip.x1 = left - unit->crtc.x;
534		clip.y1 = top - unit->crtc.y;
535		clip.x2 = right - unit->crtc.x;
536		clip.y2 = bottom - unit->crtc.y;
537
538		/* skip any crtcs that misses the clip region */
539		if (clip.x1 >= unit->crtc.mode.hdisplay ||
540		    clip.y1 >= unit->crtc.mode.vdisplay ||
541		    clip.x2 <= 0 || clip.y2 <= 0)
542			continue;
543
544		/*
545		 * In order for the clip rects to be correctly scaled
546		 * the src and dest rects needs to be the same size.
547		 */
548		cmd->body.destRect.left = clip.x1;
549		cmd->body.destRect.right = clip.x2;
550		cmd->body.destRect.top = clip.y1;
551		cmd->body.destRect.bottom = clip.y2;
552
553		/* create a clip rect of the crtc in dest coords */
554		clip.x2 = unit->crtc.mode.hdisplay - clip.x1;
555		clip.y2 = unit->crtc.mode.vdisplay - clip.y1;
556		clip.x1 = 0 - clip.x1;
557		clip.y1 = 0 - clip.y1;
558
559		/* need to reset sid as it is changed by execbuf */
560		cmd->body.srcImage.sid = cpu_to_le32(framebuffer->user_handle);
561		cmd->body.destScreenId = unit->unit;
562
563		/* clip and write blits to cmd stream */
564		vmw_clip_cliprects(tmp, num_clips, clip, blits, &num);
565
566		/* if no cliprects hit skip this */
567		if (num == 0)
568			continue;
569
570		/* only return the last fence */
571		if (out_fence && *out_fence)
572			vmw_fence_obj_unreference(out_fence);
573
574		/* recalculate package length */
575		fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num;
576		cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
577		ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
578					  fifo_size, 0, NULL, out_fence);
579
580		if (unlikely(ret != 0))
581			break;
582	}
583
584
585	kfree(cmd);
586out_free_tmp:
587	kfree(tmp);
588
589	return ret;
590}
591
592static int vmw_framebuffer_surface_dirty(struct drm_framebuffer *framebuffer,
593				  struct drm_file *file_priv,
594				  unsigned flags, unsigned color,
595				  struct drm_clip_rect *clips,
596				  unsigned num_clips)
597{
598	struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
599	struct vmw_framebuffer_surface *vfbs =
600		vmw_framebuffer_to_vfbs(framebuffer);
601	struct drm_clip_rect norect;
602	int ret, inc = 1;
603
604	if (unlikely(vfbs->master != file_priv->master))
605		return -EINVAL;
606
607	/* Require ScreenObject support for 3D */
608	if (!dev_priv->sou_priv)
609		return -EINVAL;
610
611	drm_modeset_lock_all(dev_priv->dev);
612
613	ret = ttm_read_lock(&dev_priv->reservation_sem, true);
614	if (unlikely(ret != 0)) {
615		drm_modeset_unlock_all(dev_priv->dev);
616		return ret;
617	}
618
619	if (!num_clips) {
620		num_clips = 1;
621		clips = &norect;
622		norect.x1 = norect.y1 = 0;
623		norect.x2 = framebuffer->width;
624		norect.y2 = framebuffer->height;
625	} else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
626		num_clips /= 2;
627		inc = 2; /* skip source rects */
628	}
629
630	ret = do_surface_dirty_sou(dev_priv, file_priv, &vfbs->base,
631				   flags, color,
632				   clips, num_clips, inc, NULL);
633
634	ttm_read_unlock(&dev_priv->reservation_sem);
635
636	drm_modeset_unlock_all(dev_priv->dev);
637
638	return 0;
639}
640
641static struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
642	.destroy = vmw_framebuffer_surface_destroy,
643	.dirty = vmw_framebuffer_surface_dirty,
644};
645
646static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
647					   struct drm_file *file_priv,
648					   struct vmw_surface *surface,
649					   struct vmw_framebuffer **out,
650					   const struct drm_mode_fb_cmd
651					   *mode_cmd)
652
653{
654	struct drm_device *dev = dev_priv->dev;
655	struct vmw_framebuffer_surface *vfbs;
656	enum SVGA3dSurfaceFormat format;
657	struct vmw_master *vmaster = vmw_master(file_priv->master);
658	int ret;
659
660	/* 3D is only supported on HWv8 hosts which supports screen objects */
661	if (!dev_priv->sou_priv)
662		return -ENOSYS;
663
664	/*
665	 * Sanity checks.
666	 */
667
668	/* Surface must be marked as a scanout. */
669	if (unlikely(!surface->scanout))
670		return -EINVAL;
671
672	if (unlikely(surface->mip_levels[0] != 1 ||
673		     surface->num_sizes != 1 ||
674		     surface->base_size.width < mode_cmd->width ||
675		     surface->base_size.height < mode_cmd->height ||
676		     surface->base_size.depth != 1)) {
677		DRM_ERROR("Incompatible surface dimensions "
678			  "for requested mode.\n");
679		return -EINVAL;
680	}
681
682	switch (mode_cmd->depth) {
683	case 32:
684		format = SVGA3D_A8R8G8B8;
685		break;
686	case 24:
687		format = SVGA3D_X8R8G8B8;
688		break;
689	case 16:
690		format = SVGA3D_R5G6B5;
691		break;
692	case 15:
693		format = SVGA3D_A1R5G5B5;
694		break;
695	case 8:
696		format = SVGA3D_LUMINANCE8;
697		break;
698	default:
699		DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
700		return -EINVAL;
701	}
702
703	if (unlikely(format != surface->format)) {
704		DRM_ERROR("Invalid surface format for requested mode.\n");
705		return -EINVAL;
706	}
707
708	vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
709	if (!vfbs) {
710		ret = -ENOMEM;
711		goto out_err1;
712	}
713
714	if (!vmw_surface_reference(surface)) {
715		DRM_ERROR("failed to reference surface %p\n", surface);
716		ret = -EINVAL;
717		goto out_err2;
718	}
719
720	/* XXX get the first 3 from the surface info */
721	vfbs->base.base.bits_per_pixel = mode_cmd->bpp;
722	vfbs->base.base.pitches[0] = mode_cmd->pitch;
723	vfbs->base.base.depth = mode_cmd->depth;
724	vfbs->base.base.width = mode_cmd->width;
725	vfbs->base.base.height = mode_cmd->height;
726	vfbs->surface = surface;
727	vfbs->base.user_handle = mode_cmd->handle;
728	vfbs->master = drm_master_get(file_priv->master);
729
730	mutex_lock(&vmaster->fb_surf_mutex);
731	list_add_tail(&vfbs->head, &vmaster->fb_surf);
732	mutex_unlock(&vmaster->fb_surf_mutex);
733
734	*out = &vfbs->base;
735
736	ret = drm_framebuffer_init(dev, &vfbs->base.base,
737				   &vmw_framebuffer_surface_funcs);
738	if (ret)
739		goto out_err3;
740
741	return 0;
742
743out_err3:
744	vmw_surface_unreference(&surface);
745out_err2:
746	kfree(vfbs);
747out_err1:
748	return ret;
749}
750
751/*
752 * Dmabuf framebuffer code
753 */
754
755#define vmw_framebuffer_to_vfbd(x) \
756	container_of(x, struct vmw_framebuffer_dmabuf, base.base)
757
758struct vmw_framebuffer_dmabuf {
759	struct vmw_framebuffer base;
760	struct vmw_dma_buffer *buffer;
761};
762
763static void vmw_framebuffer_dmabuf_destroy(struct drm_framebuffer *framebuffer)
764{
765	struct vmw_framebuffer_dmabuf *vfbd =
766		vmw_framebuffer_to_vfbd(framebuffer);
767
768	drm_framebuffer_cleanup(framebuffer);
769	vmw_dmabuf_unreference(&vfbd->buffer);
770	ttm_base_object_unref(&vfbd->base.user_obj);
771
772	kfree(vfbd);
773}
774
775static int do_dmabuf_dirty_ldu(struct vmw_private *dev_priv,
776			       struct vmw_framebuffer *framebuffer,
777			       unsigned flags, unsigned color,
778			       struct drm_clip_rect *clips,
779			       unsigned num_clips, int increment)
780{
781	size_t fifo_size;
782	int i;
783
784	struct {
785		uint32_t header;
786		SVGAFifoCmdUpdate body;
787	} *cmd;
788
789	fifo_size = sizeof(*cmd) * num_clips;
790	cmd = vmw_fifo_reserve(dev_priv, fifo_size);
791	if (unlikely(cmd == NULL)) {
792		DRM_ERROR("Fifo reserve failed.\n");
793		return -ENOMEM;
794	}
795
796	memset(cmd, 0, fifo_size);
797	for (i = 0; i < num_clips; i++, clips += increment) {
798		cmd[i].header = cpu_to_le32(SVGA_CMD_UPDATE);
799		cmd[i].body.x = cpu_to_le32(clips->x1);
800		cmd[i].body.y = cpu_to_le32(clips->y1);
801		cmd[i].body.width = cpu_to_le32(clips->x2 - clips->x1);
802		cmd[i].body.height = cpu_to_le32(clips->y2 - clips->y1);
803	}
804
805	vmw_fifo_commit(dev_priv, fifo_size);
806	return 0;
807}
808
809static int do_dmabuf_define_gmrfb(struct drm_file *file_priv,
810				  struct vmw_private *dev_priv,
811				  struct vmw_framebuffer *framebuffer)
812{
813	int depth = framebuffer->base.depth;
814	size_t fifo_size;
815	int ret;
816
817	struct {
818		uint32_t header;
819		SVGAFifoCmdDefineGMRFB body;
820	} *cmd;
821
822	/* Emulate RGBA support, contrary to svga_reg.h this is not
823	 * supported by hosts. This is only a problem if we are reading
824	 * this value later and expecting what we uploaded back.
825	 */
826	if (depth == 32)
827		depth = 24;
828
829	fifo_size = sizeof(*cmd);
830	cmd = kmalloc(fifo_size, GFP_KERNEL);
831	if (unlikely(cmd == NULL)) {
832		DRM_ERROR("Failed to allocate temporary cmd buffer.\n");
833		return -ENOMEM;
834	}
835
836	memset(cmd, 0, fifo_size);
837	cmd->header = SVGA_CMD_DEFINE_GMRFB;
838	cmd->body.format.bitsPerPixel = framebuffer->base.bits_per_pixel;
839	cmd->body.format.colorDepth = depth;
840	cmd->body.format.reserved = 0;
841	cmd->body.bytesPerLine = framebuffer->base.pitches[0];
842	cmd->body.ptr.gmrId = framebuffer->user_handle;
843	cmd->body.ptr.offset = 0;
844
845	ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
846				  fifo_size, 0, NULL, NULL);
847
848	kfree(cmd);
849
850	return ret;
851}
852
853static int do_dmabuf_dirty_sou(struct drm_file *file_priv,
854			       struct vmw_private *dev_priv,
855			       struct vmw_framebuffer *framebuffer,
856			       unsigned flags, unsigned color,
857			       struct drm_clip_rect *clips,
858			       unsigned num_clips, int increment,
859			       struct vmw_fence_obj **out_fence)
860{
861	struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
862	struct drm_clip_rect *clips_ptr;
863	int i, k, num_units, ret;
864	struct drm_crtc *crtc;
865	size_t fifo_size;
866
867	struct {
868		uint32_t header;
869		SVGAFifoCmdBlitGMRFBToScreen body;
870	} *blits;
871
872	ret = do_dmabuf_define_gmrfb(file_priv, dev_priv, framebuffer);
873	if (unlikely(ret != 0))
874		return ret; /* define_gmrfb prints warnings */
875
876	fifo_size = sizeof(*blits) * num_clips;
877	blits = kmalloc(fifo_size, GFP_KERNEL);
878	if (unlikely(blits == NULL)) {
879		DRM_ERROR("Failed to allocate temporary cmd buffer.\n");
880		return -ENOMEM;
881	}
882
883	num_units = 0;
884	list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
885		if (crtc->primary->fb != &framebuffer->base)
886			continue;
887		units[num_units++] = vmw_crtc_to_du(crtc);
888	}
889
890	for (k = 0; k < num_units; k++) {
891		struct vmw_display_unit *unit = units[k];
892		int hit_num = 0;
893
894		clips_ptr = clips;
895		for (i = 0; i < num_clips; i++, clips_ptr += increment) {
896			int clip_x1 = clips_ptr->x1 - unit->crtc.x;
897			int clip_y1 = clips_ptr->y1 - unit->crtc.y;
898			int clip_x2 = clips_ptr->x2 - unit->crtc.x;
899			int clip_y2 = clips_ptr->y2 - unit->crtc.y;
900			int move_x, move_y;
901
902			/* skip any crtcs that misses the clip region */
903			if (clip_x1 >= unit->crtc.mode.hdisplay ||
904			    clip_y1 >= unit->crtc.mode.vdisplay ||
905			    clip_x2 <= 0 || clip_y2 <= 0)
906				continue;
907
908			/* clip size to crtc size */
909			clip_x2 = min_t(int, clip_x2, unit->crtc.mode.hdisplay);
910			clip_y2 = min_t(int, clip_y2, unit->crtc.mode.vdisplay);
911
912			/* translate both src and dest to bring clip into screen */
913			move_x = min_t(int, clip_x1, 0);
914			move_y = min_t(int, clip_y1, 0);
915
916			/* actual translate done here */
917			blits[hit_num].header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN;
918			blits[hit_num].body.destScreenId = unit->unit;
919			blits[hit_num].body.srcOrigin.x = clips_ptr->x1 - move_x;
920			blits[hit_num].body.srcOrigin.y = clips_ptr->y1 - move_y;
921			blits[hit_num].body.destRect.left = clip_x1 - move_x;
922			blits[hit_num].body.destRect.top = clip_y1 - move_y;
923			blits[hit_num].body.destRect.right = clip_x2;
924			blits[hit_num].body.destRect.bottom = clip_y2;
925			hit_num++;
926		}
927
928		/* no clips hit the crtc */
929		if (hit_num == 0)
930			continue;
931
932		/* only return the last fence */
933		if (out_fence && *out_fence)
934			vmw_fence_obj_unreference(out_fence);
935
936		fifo_size = sizeof(*blits) * hit_num;
937		ret = vmw_execbuf_process(file_priv, dev_priv, NULL, blits,
938					  fifo_size, 0, NULL, out_fence);
939
940		if (unlikely(ret != 0))
941			break;
942	}
943
944	kfree(blits);
945
946	return ret;
947}
948
949static int vmw_framebuffer_dmabuf_dirty(struct drm_framebuffer *framebuffer,
950				 struct drm_file *file_priv,
951				 unsigned flags, unsigned color,
952				 struct drm_clip_rect *clips,
953				 unsigned num_clips)
954{
955	struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
956	struct vmw_framebuffer_dmabuf *vfbd =
957		vmw_framebuffer_to_vfbd(framebuffer);
958	struct drm_clip_rect norect;
959	int ret, increment = 1;
960
961	drm_modeset_lock_all(dev_priv->dev);
962
963	ret = ttm_read_lock(&dev_priv->reservation_sem, true);
964	if (unlikely(ret != 0)) {
965		drm_modeset_unlock_all(dev_priv->dev);
966		return ret;
967	}
968
969	if (!num_clips) {
970		num_clips = 1;
971		clips = &norect;
972		norect.x1 = norect.y1 = 0;
973		norect.x2 = framebuffer->width;
974		norect.y2 = framebuffer->height;
975	} else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
976		num_clips /= 2;
977		increment = 2;
978	}
979
980	if (dev_priv->ldu_priv) {
981		ret = do_dmabuf_dirty_ldu(dev_priv, &vfbd->base,
982					  flags, color,
983					  clips, num_clips, increment);
984	} else {
985		ret = do_dmabuf_dirty_sou(file_priv, dev_priv, &vfbd->base,
986					  flags, color,
987					  clips, num_clips, increment, NULL);
988	}
989
990	ttm_read_unlock(&dev_priv->reservation_sem);
991
992	drm_modeset_unlock_all(dev_priv->dev);
993
994	return ret;
995}
996
997static struct drm_framebuffer_funcs vmw_framebuffer_dmabuf_funcs = {
998	.destroy = vmw_framebuffer_dmabuf_destroy,
999	.dirty = vmw_framebuffer_dmabuf_dirty,
1000};
1001
1002/**
1003 * Pin the dmabuffer to the start of vram.
1004 */
1005static int vmw_framebuffer_dmabuf_pin(struct vmw_framebuffer *vfb)
1006{
1007	struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
1008	struct vmw_framebuffer_dmabuf *vfbd =
1009		vmw_framebuffer_to_vfbd(&vfb->base);
1010	int ret;
1011
1012	/* This code should not be used with screen objects */
1013	BUG_ON(dev_priv->sou_priv);
1014
1015	vmw_overlay_pause_all(dev_priv);
1016
1017	ret = vmw_dmabuf_to_start_of_vram(dev_priv, vfbd->buffer, true, false);
1018
1019	vmw_overlay_resume_all(dev_priv);
1020
1021	WARN_ON(ret != 0);
1022
1023	return 0;
1024}
1025
1026static int vmw_framebuffer_dmabuf_unpin(struct vmw_framebuffer *vfb)
1027{
1028	struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
1029	struct vmw_framebuffer_dmabuf *vfbd =
1030		vmw_framebuffer_to_vfbd(&vfb->base);
1031
1032	if (!vfbd->buffer) {
1033		WARN_ON(!vfbd->buffer);
1034		return 0;
1035	}
1036
1037	return vmw_dmabuf_unpin(dev_priv, vfbd->buffer, false);
1038}
1039
1040static int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv,
1041					  struct vmw_dma_buffer *dmabuf,
1042					  struct vmw_framebuffer **out,
1043					  const struct drm_mode_fb_cmd
1044					  *mode_cmd)
1045
1046{
1047	struct drm_device *dev = dev_priv->dev;
1048	struct vmw_framebuffer_dmabuf *vfbd;
1049	unsigned int requested_size;
1050	int ret;
1051
1052	requested_size = mode_cmd->height * mode_cmd->pitch;
1053	if (unlikely(requested_size > dmabuf->base.num_pages * PAGE_SIZE)) {
1054		DRM_ERROR("Screen buffer object size is too small "
1055			  "for requested mode.\n");
1056		return -EINVAL;
1057	}
1058
1059	/* Limited framebuffer color depth support for screen objects */
1060	if (dev_priv->sou_priv) {
1061		switch (mode_cmd->depth) {
1062		case 32:
1063		case 24:
1064			/* Only support 32 bpp for 32 and 24 depth fbs */
1065			if (mode_cmd->bpp == 32)
1066				break;
1067
1068			DRM_ERROR("Invalid color depth/bbp: %d %d\n",
1069				  mode_cmd->depth, mode_cmd->bpp);
1070			return -EINVAL;
1071		case 16:
1072		case 15:
1073			/* Only support 16 bpp for 16 and 15 depth fbs */
1074			if (mode_cmd->bpp == 16)
1075				break;
1076
1077			DRM_ERROR("Invalid color depth/bbp: %d %d\n",
1078				  mode_cmd->depth, mode_cmd->bpp);
1079			return -EINVAL;
1080		default:
1081			DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
1082			return -EINVAL;
1083		}
1084	}
1085
1086	vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
1087	if (!vfbd) {
1088		ret = -ENOMEM;
1089		goto out_err1;
1090	}
1091
1092	if (!vmw_dmabuf_reference(dmabuf)) {
1093		DRM_ERROR("failed to reference dmabuf %p\n", dmabuf);
1094		ret = -EINVAL;
1095		goto out_err2;
1096	}
1097
1098	vfbd->base.base.bits_per_pixel = mode_cmd->bpp;
1099	vfbd->base.base.pitches[0] = mode_cmd->pitch;
1100	vfbd->base.base.depth = mode_cmd->depth;
1101	vfbd->base.base.width = mode_cmd->width;
1102	vfbd->base.base.height = mode_cmd->height;
1103	if (!dev_priv->sou_priv) {
1104		vfbd->base.pin = vmw_framebuffer_dmabuf_pin;
1105		vfbd->base.unpin = vmw_framebuffer_dmabuf_unpin;
1106	}
1107	vfbd->base.dmabuf = true;
1108	vfbd->buffer = dmabuf;
1109	vfbd->base.user_handle = mode_cmd->handle;
1110	*out = &vfbd->base;
1111
1112	ret = drm_framebuffer_init(dev, &vfbd->base.base,
1113				   &vmw_framebuffer_dmabuf_funcs);
1114	if (ret)
1115		goto out_err3;
1116
1117	return 0;
1118
1119out_err3:
1120	vmw_dmabuf_unreference(&dmabuf);
1121out_err2:
1122	kfree(vfbd);
1123out_err1:
1124	return ret;
1125}
1126
1127/*
1128 * Generic Kernel modesetting functions
1129 */
1130
1131static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
1132						 struct drm_file *file_priv,
1133						 struct drm_mode_fb_cmd2 *mode_cmd2)
1134{
1135	struct vmw_private *dev_priv = vmw_priv(dev);
1136	struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
1137	struct vmw_framebuffer *vfb = NULL;
1138	struct vmw_surface *surface = NULL;
1139	struct vmw_dma_buffer *bo = NULL;
1140	struct ttm_base_object *user_obj;
1141	struct drm_mode_fb_cmd mode_cmd;
1142	int ret;
1143
1144	mode_cmd.width = mode_cmd2->width;
1145	mode_cmd.height = mode_cmd2->height;
1146	mode_cmd.pitch = mode_cmd2->pitches[0];
1147	mode_cmd.handle = mode_cmd2->handles[0];
1148	drm_fb_get_bpp_depth(mode_cmd2->pixel_format, &mode_cmd.depth,
1149				    &mode_cmd.bpp);
1150
1151	/**
1152	 * This code should be conditioned on Screen Objects not being used.
1153	 * If screen objects are used, we can allocate a GMR to hold the
1154	 * requested framebuffer.
1155	 */
1156
1157	if (!vmw_kms_validate_mode_vram(dev_priv,
1158					mode_cmd.pitch,
1159					mode_cmd.height)) {
1160		DRM_ERROR("VRAM size is too small for requested mode.\n");
1161		return ERR_PTR(-ENOMEM);
1162	}
1163
1164	/*
1165	 * Take a reference on the user object of the resource
1166	 * backing the kms fb. This ensures that user-space handle
1167	 * lookups on that resource will always work as long as
1168	 * it's registered with a kms framebuffer. This is important,
1169	 * since vmw_execbuf_process identifies resources in the
1170	 * command stream using user-space handles.
1171	 */
1172
1173	user_obj = ttm_base_object_lookup(tfile, mode_cmd.handle);
1174	if (unlikely(user_obj == NULL)) {
1175		DRM_ERROR("Could not locate requested kms frame buffer.\n");
1176		return ERR_PTR(-ENOENT);
1177	}
1178
1179	/**
1180	 * End conditioned code.
1181	 */
1182
1183	/* returns either a dmabuf or surface */
1184	ret = vmw_user_lookup_handle(dev_priv, tfile,
1185				     mode_cmd.handle,
1186				     &surface, &bo);
1187	if (ret)
1188		goto err_out;
1189
1190	/* Create the new framebuffer depending one what we got back */
1191	if (bo)
1192		ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb,
1193						     &mode_cmd);
1194	else if (surface)
1195		ret = vmw_kms_new_framebuffer_surface(dev_priv, file_priv,
1196						      surface, &vfb, &mode_cmd);
1197	else
1198		BUG();
1199
1200err_out:
1201	/* vmw_user_lookup_handle takes one ref so does new_fb */
1202	if (bo)
1203		vmw_dmabuf_unreference(&bo);
1204	if (surface)
1205		vmw_surface_unreference(&surface);
1206
1207	if (ret) {
1208		DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
1209		ttm_base_object_unref(&user_obj);
1210		return ERR_PTR(ret);
1211	} else
1212		vfb->user_obj = user_obj;
1213
1214	return &vfb->base;
1215}
1216
1217static const struct drm_mode_config_funcs vmw_kms_funcs = {
1218	.fb_create = vmw_kms_fb_create,
1219};
1220
1221int vmw_kms_present(struct vmw_private *dev_priv,
1222		    struct drm_file *file_priv,
1223		    struct vmw_framebuffer *vfb,
1224		    struct vmw_surface *surface,
1225		    uint32_t sid,
1226		    int32_t destX, int32_t destY,
1227		    struct drm_vmw_rect *clips,
1228		    uint32_t num_clips)
1229{
1230	struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
1231	struct drm_clip_rect *tmp;
1232	struct drm_crtc *crtc;
1233	size_t fifo_size;
1234	int i, k, num_units;
1235	int ret = 0; /* silence warning */
1236	int left, right, top, bottom;
1237
1238	struct {
1239		SVGA3dCmdHeader header;
1240		SVGA3dCmdBlitSurfaceToScreen body;
1241	} *cmd;
1242	SVGASignedRect *blits;
1243
1244	num_units = 0;
1245	list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1246		if (crtc->primary->fb != &vfb->base)
1247			continue;
1248		units[num_units++] = vmw_crtc_to_du(crtc);
1249	}
1250
1251	BUG_ON(surface == NULL);
1252	BUG_ON(!clips || !num_clips);
1253
1254	tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL);
1255	if (unlikely(tmp == NULL)) {
1256		DRM_ERROR("Temporary cliprect memory alloc failed.\n");
1257		return -ENOMEM;
1258	}
1259
1260	fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips;
1261	cmd = kmalloc(fifo_size, GFP_KERNEL);
1262	if (unlikely(cmd == NULL)) {
1263		DRM_ERROR("Failed to allocate temporary fifo memory.\n");
1264		ret = -ENOMEM;
1265		goto out_free_tmp;
1266	}
1267
1268	left = clips->x;
1269	right = clips->x + clips->w;
1270	top = clips->y;
1271	bottom = clips->y + clips->h;
1272
1273	for (i = 1; i < num_clips; i++) {
1274		left = min_t(int, left, (int)clips[i].x);
1275		right = max_t(int, right, (int)clips[i].x + clips[i].w);
1276		top = min_t(int, top, (int)clips[i].y);
1277		bottom = max_t(int, bottom, (int)clips[i].y + clips[i].h);
1278	}
1279
1280	/* only need to do this once */
1281	memset(cmd, 0, fifo_size);
1282	cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
1283
1284	blits = (SVGASignedRect *)&cmd[1];
1285
1286	cmd->body.srcRect.left = left;
1287	cmd->body.srcRect.right = right;
1288	cmd->body.srcRect.top = top;
1289	cmd->body.srcRect.bottom = bottom;
1290
1291	for (i = 0; i < num_clips; i++) {
1292		tmp[i].x1 = clips[i].x - left;
1293		tmp[i].x2 = clips[i].x + clips[i].w - left;
1294		tmp[i].y1 = clips[i].y - top;
1295		tmp[i].y2 = clips[i].y + clips[i].h - top;
1296	}
1297
1298	for (k = 0; k < num_units; k++) {
1299		struct vmw_display_unit *unit = units[k];
1300		struct vmw_clip_rect clip;
1301		int num;
1302
1303		clip.x1 = left + destX - unit->crtc.x;
1304		clip.y1 = top + destY - unit->crtc.y;
1305		clip.x2 = right + destX - unit->crtc.x;
1306		clip.y2 = bottom + destY - unit->crtc.y;
1307
1308		/* skip any crtcs that misses the clip region */
1309		if (clip.x1 >= unit->crtc.mode.hdisplay ||
1310		    clip.y1 >= unit->crtc.mode.vdisplay ||
1311		    clip.x2 <= 0 || clip.y2 <= 0)
1312			continue;
1313
1314		/*
1315		 * In order for the clip rects to be correctly scaled
1316		 * the src and dest rects needs to be the same size.
1317		 */
1318		cmd->body.destRect.left = clip.x1;
1319		cmd->body.destRect.right = clip.x2;
1320		cmd->body.destRect.top = clip.y1;
1321		cmd->body.destRect.bottom = clip.y2;
1322
1323		/* create a clip rect of the crtc in dest coords */
1324		clip.x2 = unit->crtc.mode.hdisplay - clip.x1;
1325		clip.y2 = unit->crtc.mode.vdisplay - clip.y1;
1326		clip.x1 = 0 - clip.x1;
1327		clip.y1 = 0 - clip.y1;
1328
1329		/* need to reset sid as it is changed by execbuf */
1330		cmd->body.srcImage.sid = sid;
1331		cmd->body.destScreenId = unit->unit;
1332
1333		/* clip and write blits to cmd stream */
1334		vmw_clip_cliprects(tmp, num_clips, clip, blits, &num);
1335
1336		/* if no cliprects hit skip this */
1337		if (num == 0)
1338			continue;
1339
1340		/* recalculate package length */
1341		fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num;
1342		cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
1343		ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
1344					  fifo_size, 0, NULL, NULL);
1345
1346		if (unlikely(ret != 0))
1347			break;
1348	}
1349
1350	kfree(cmd);
1351out_free_tmp:
1352	kfree(tmp);
1353
1354	return ret;
1355}
1356
1357int vmw_kms_readback(struct vmw_private *dev_priv,
1358		     struct drm_file *file_priv,
1359		     struct vmw_framebuffer *vfb,
1360		     struct drm_vmw_fence_rep __user *user_fence_rep,
1361		     struct drm_vmw_rect *clips,
1362		     uint32_t num_clips)
1363{
1364	struct vmw_framebuffer_dmabuf *vfbd =
1365		vmw_framebuffer_to_vfbd(&vfb->base);
1366	struct vmw_dma_buffer *dmabuf = vfbd->buffer;
1367	struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
1368	struct drm_crtc *crtc;
1369	size_t fifo_size;
1370	int i, k, ret, num_units, blits_pos;
1371
1372	struct {
1373		uint32_t header;
1374		SVGAFifoCmdDefineGMRFB body;
1375	} *cmd;
1376	struct {
1377		uint32_t header;
1378		SVGAFifoCmdBlitScreenToGMRFB body;
1379	} *blits;
1380
1381	num_units = 0;
1382	list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1383		if (crtc->primary->fb != &vfb->base)
1384			continue;
1385		units[num_units++] = vmw_crtc_to_du(crtc);
1386	}
1387
1388	BUG_ON(dmabuf == NULL);
1389	BUG_ON(!clips || !num_clips);
1390
1391	/* take a safe guess at fifo size */
1392	fifo_size = sizeof(*cmd) + sizeof(*blits) * num_clips * num_units;
1393	cmd = kmalloc(fifo_size, GFP_KERNEL);
1394	if (unlikely(cmd == NULL)) {
1395		DRM_ERROR("Failed to allocate temporary fifo memory.\n");
1396		return -ENOMEM;
1397	}
1398
1399	memset(cmd, 0, fifo_size);
1400	cmd->header = SVGA_CMD_DEFINE_GMRFB;
1401	cmd->body.format.bitsPerPixel = vfb->base.bits_per_pixel;
1402	cmd->body.format.colorDepth = vfb->base.depth;
1403	cmd->body.format.reserved = 0;
1404	cmd->body.bytesPerLine = vfb->base.pitches[0];
1405	cmd->body.ptr.gmrId = vfb->user_handle;
1406	cmd->body.ptr.offset = 0;
1407
1408	blits = (void *)&cmd[1];
1409	blits_pos = 0;
1410	for (i = 0; i < num_units; i++) {
1411		struct drm_vmw_rect *c = clips;
1412		for (k = 0; k < num_clips; k++, c++) {
1413			/* transform clip coords to crtc origin based coords */
1414			int clip_x1 = c->x - units[i]->crtc.x;
1415			int clip_x2 = c->x - units[i]->crtc.x + c->w;
1416			int clip_y1 = c->y - units[i]->crtc.y;
1417			int clip_y2 = c->y - units[i]->crtc.y + c->h;
1418			int dest_x = c->x;
1419			int dest_y = c->y;
1420
1421			/* compensate for clipping, we negate
1422			 * a negative number and add that.
1423			 */
1424			if (clip_x1 < 0)
1425				dest_x += -clip_x1;
1426			if (clip_y1 < 0)
1427				dest_y += -clip_y1;
1428
1429			/* clip */
1430			clip_x1 = max(clip_x1, 0);
1431			clip_y1 = max(clip_y1, 0);
1432			clip_x2 = min(clip_x2, units[i]->crtc.mode.hdisplay);
1433			clip_y2 = min(clip_y2, units[i]->crtc.mode.vdisplay);
1434
1435			/* and cull any rects that misses the crtc */
1436			if (clip_x1 >= units[i]->crtc.mode.hdisplay ||
1437			    clip_y1 >= units[i]->crtc.mode.vdisplay ||
1438			    clip_x2 <= 0 || clip_y2 <= 0)
1439				continue;
1440
1441			blits[blits_pos].header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB;
1442			blits[blits_pos].body.srcScreenId = units[i]->unit;
1443			blits[blits_pos].body.destOrigin.x = dest_x;
1444			blits[blits_pos].body.destOrigin.y = dest_y;
1445
1446			blits[blits_pos].body.srcRect.left = clip_x1;
1447			blits[blits_pos].body.srcRect.top = clip_y1;
1448			blits[blits_pos].body.srcRect.right = clip_x2;
1449			blits[blits_pos].body.srcRect.bottom = clip_y2;
1450			blits_pos++;
1451		}
1452	}
1453	/* reset size here and use calculated exact size from loops */
1454	fifo_size = sizeof(*cmd) + sizeof(*blits) * blits_pos;
1455
1456	ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd, fifo_size,
1457				  0, user_fence_rep, NULL);
1458
1459	kfree(cmd);
1460
1461	return ret;
1462}
1463
1464int vmw_kms_init(struct vmw_private *dev_priv)
1465{
1466	struct drm_device *dev = dev_priv->dev;
1467	int ret;
1468
1469	drm_mode_config_init(dev);
1470	dev->mode_config.funcs = &vmw_kms_funcs;
1471	dev->mode_config.min_width = 1;
1472	dev->mode_config.min_height = 1;
1473	/* assumed largest fb size */
1474	dev->mode_config.max_width = 8192;
1475	dev->mode_config.max_height = 8192;
1476
1477	ret = vmw_kms_init_screen_object_display(dev_priv);
1478	if (ret) /* Fallback */
1479		(void)vmw_kms_init_legacy_display_system(dev_priv);
1480
1481	return 0;
1482}
1483
1484int vmw_kms_close(struct vmw_private *dev_priv)
1485{
1486	/*
1487	 * Docs says we should take the lock before calling this function
1488	 * but since it destroys encoders and our destructor calls
1489	 * drm_encoder_cleanup which takes the lock we deadlock.
1490	 */
1491	drm_mode_config_cleanup(dev_priv->dev);
1492	if (dev_priv->sou_priv)
1493		vmw_kms_close_screen_object_display(dev_priv);
1494	else
1495		vmw_kms_close_legacy_display_system(dev_priv);
1496	return 0;
1497}
1498
1499int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1500				struct drm_file *file_priv)
1501{
1502	struct drm_vmw_cursor_bypass_arg *arg = data;
1503	struct vmw_display_unit *du;
1504	struct drm_crtc *crtc;
1505	int ret = 0;
1506
1507
1508	mutex_lock(&dev->mode_config.mutex);
1509	if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
1510
1511		list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1512			du = vmw_crtc_to_du(crtc);
1513			du->hotspot_x = arg->xhot;
1514			du->hotspot_y = arg->yhot;
1515		}
1516
1517		mutex_unlock(&dev->mode_config.mutex);
1518		return 0;
1519	}
1520
1521	crtc = drm_crtc_find(dev, arg->crtc_id);
1522	if (!crtc) {
1523		ret = -ENOENT;
1524		goto out;
1525	}
1526
1527	du = vmw_crtc_to_du(crtc);
1528
1529	du->hotspot_x = arg->xhot;
1530	du->hotspot_y = arg->yhot;
1531
1532out:
1533	mutex_unlock(&dev->mode_config.mutex);
1534
1535	return ret;
1536}
1537
1538int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1539			unsigned width, unsigned height, unsigned pitch,
1540			unsigned bpp, unsigned depth)
1541{
1542	if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1543		vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
1544	else if (vmw_fifo_have_pitchlock(vmw_priv))
1545		iowrite32(pitch, vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1546	vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
1547	vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
1548	vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp);
1549
1550	if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) {
1551		DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n",
1552			  depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH));
1553		return -EINVAL;
1554	}
1555
1556	return 0;
1557}
1558
1559int vmw_kms_save_vga(struct vmw_private *vmw_priv)
1560{
1561	struct vmw_vga_topology_state *save;
1562	uint32_t i;
1563
1564	vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH);
1565	vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT);
1566	vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL);
1567	if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1568		vmw_priv->vga_pitchlock =
1569		  vmw_read(vmw_priv, SVGA_REG_PITCHLOCK);
1570	else if (vmw_fifo_have_pitchlock(vmw_priv))
1571		vmw_priv->vga_pitchlock = ioread32(vmw_priv->mmio_virt +
1572						       SVGA_FIFO_PITCHLOCK);
1573
1574	if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1575		return 0;
1576
1577	vmw_priv->num_displays = vmw_read(vmw_priv,
1578					  SVGA_REG_NUM_GUEST_DISPLAYS);
1579
1580	if (vmw_priv->num_displays == 0)
1581		vmw_priv->num_displays = 1;
1582
1583	for (i = 0; i < vmw_priv->num_displays; ++i) {
1584		save = &vmw_priv->vga_save[i];
1585		vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1586		save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY);
1587		save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X);
1588		save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y);
1589		save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH);
1590		save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT);
1591		vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1592		if (i == 0 && vmw_priv->num_displays == 1 &&
1593		    save->width == 0 && save->height == 0) {
1594
1595			/*
1596			 * It should be fairly safe to assume that these
1597			 * values are uninitialized.
1598			 */
1599
1600			save->width = vmw_priv->vga_width - save->pos_x;
1601			save->height = vmw_priv->vga_height - save->pos_y;
1602		}
1603	}
1604
1605	return 0;
1606}
1607
1608int vmw_kms_restore_vga(struct vmw_private *vmw_priv)
1609{
1610	struct vmw_vga_topology_state *save;
1611	uint32_t i;
1612
1613	vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width);
1614	vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height);
1615	vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp);
1616	if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1617		vmw_write(vmw_priv, SVGA_REG_PITCHLOCK,
1618			  vmw_priv->vga_pitchlock);
1619	else if (vmw_fifo_have_pitchlock(vmw_priv))
1620		iowrite32(vmw_priv->vga_pitchlock,
1621			  vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1622
1623	if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1624		return 0;
1625
1626	for (i = 0; i < vmw_priv->num_displays; ++i) {
1627		save = &vmw_priv->vga_save[i];
1628		vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1629		vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary);
1630		vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x);
1631		vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y);
1632		vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width);
1633		vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height);
1634		vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1635	}
1636
1637	return 0;
1638}
1639
1640bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1641				uint32_t pitch,
1642				uint32_t height)
1643{
1644	return ((u64) pitch * (u64) height) < (u64) dev_priv->prim_bb_mem;
1645}
1646
1647
1648/**
1649 * Function called by DRM code called with vbl_lock held.
1650 */
1651u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc)
1652{
1653	return 0;
1654}
1655
1656/**
1657 * Function called by DRM code called with vbl_lock held.
1658 */
1659int vmw_enable_vblank(struct drm_device *dev, int crtc)
1660{
1661	return -ENOSYS;
1662}
1663
1664/**
1665 * Function called by DRM code called with vbl_lock held.
1666 */
1667void vmw_disable_vblank(struct drm_device *dev, int crtc)
1668{
1669}
1670
1671
1672/*
1673 * Small shared kms functions.
1674 */
1675
1676static int vmw_du_update_layout(struct vmw_private *dev_priv, unsigned num,
1677			 struct drm_vmw_rect *rects)
1678{
1679	struct drm_device *dev = dev_priv->dev;
1680	struct vmw_display_unit *du;
1681	struct drm_connector *con;
1682
1683	mutex_lock(&dev->mode_config.mutex);
1684
1685#if 0
1686	{
1687		unsigned int i;
1688
1689		DRM_INFO("%s: new layout ", __func__);
1690		for (i = 0; i < num; i++)
1691			DRM_INFO("(%i, %i %ux%u) ", rects[i].x, rects[i].y,
1692				 rects[i].w, rects[i].h);
1693		DRM_INFO("\n");
1694	}
1695#endif
1696
1697	list_for_each_entry(con, &dev->mode_config.connector_list, head) {
1698		du = vmw_connector_to_du(con);
1699		if (num > du->unit) {
1700			du->pref_width = rects[du->unit].w;
1701			du->pref_height = rects[du->unit].h;
1702			du->pref_active = true;
1703			du->gui_x = rects[du->unit].x;
1704			du->gui_y = rects[du->unit].y;
1705		} else {
1706			du->pref_width = 800;
1707			du->pref_height = 600;
1708			du->pref_active = false;
1709		}
1710		con->status = vmw_du_connector_detect(con, true);
1711	}
1712
1713	mutex_unlock(&dev->mode_config.mutex);
1714
1715	return 0;
1716}
1717
1718int vmw_du_page_flip(struct drm_crtc *crtc,
1719		     struct drm_framebuffer *fb,
1720		     struct drm_pending_vblank_event *event,
1721		     uint32_t page_flip_flags)
1722{
1723	struct vmw_private *dev_priv = vmw_priv(crtc->dev);
1724	struct drm_framebuffer *old_fb = crtc->primary->fb;
1725	struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(fb);
1726	struct drm_file *file_priv ;
1727	struct vmw_fence_obj *fence = NULL;
1728	struct drm_clip_rect clips;
1729	int ret;
1730
1731	if (event == NULL)
1732		return -EINVAL;
1733
1734	/* require ScreenObject support for page flipping */
1735	if (!dev_priv->sou_priv)
1736		return -ENOSYS;
1737
1738	file_priv = event->base.file_priv;
1739	if (!vmw_kms_screen_object_flippable(dev_priv, crtc))
1740		return -EINVAL;
1741
1742	crtc->primary->fb = fb;
1743
1744	/* do a full screen dirty update */
1745	clips.x1 = clips.y1 = 0;
1746	clips.x2 = fb->width;
1747	clips.y2 = fb->height;
1748
1749	if (vfb->dmabuf)
1750		ret = do_dmabuf_dirty_sou(file_priv, dev_priv, vfb,
1751					  0, 0, &clips, 1, 1, &fence);
1752	else
1753		ret = do_surface_dirty_sou(dev_priv, file_priv, vfb,
1754					   0, 0, &clips, 1, 1, &fence);
1755
1756
1757	if (ret != 0)
1758		goto out_no_fence;
1759	if (!fence) {
1760		ret = -EINVAL;
1761		goto out_no_fence;
1762	}
1763
1764	ret = vmw_event_fence_action_queue(file_priv, fence,
1765					   &event->base,
1766					   &event->event.tv_sec,
1767					   &event->event.tv_usec,
1768					   true);
1769
1770	/*
1771	 * No need to hold on to this now. The only cleanup
1772	 * we need to do if we fail is unref the fence.
1773	 */
1774	vmw_fence_obj_unreference(&fence);
1775
1776	if (vmw_crtc_to_du(crtc)->is_implicit)
1777		vmw_kms_screen_object_update_implicit_fb(dev_priv, crtc);
1778
1779	return ret;
1780
1781out_no_fence:
1782	crtc->primary->fb = old_fb;
1783	return ret;
1784}
1785
1786
1787void vmw_du_crtc_save(struct drm_crtc *crtc)
1788{
1789}
1790
1791void vmw_du_crtc_restore(struct drm_crtc *crtc)
1792{
1793}
1794
1795void vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
1796			   u16 *r, u16 *g, u16 *b,
1797			   uint32_t start, uint32_t size)
1798{
1799	struct vmw_private *dev_priv = vmw_priv(crtc->dev);
1800	int i;
1801
1802	for (i = 0; i < size; i++) {
1803		DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
1804			  r[i], g[i], b[i]);
1805		vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
1806		vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
1807		vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
1808	}
1809}
1810
1811void vmw_du_connector_dpms(struct drm_connector *connector, int mode)
1812{
1813}
1814
1815void vmw_du_connector_save(struct drm_connector *connector)
1816{
1817}
1818
1819void vmw_du_connector_restore(struct drm_connector *connector)
1820{
1821}
1822
1823enum drm_connector_status
1824vmw_du_connector_detect(struct drm_connector *connector, bool force)
1825{
1826	uint32_t num_displays;
1827	struct drm_device *dev = connector->dev;
1828	struct vmw_private *dev_priv = vmw_priv(dev);
1829	struct vmw_display_unit *du = vmw_connector_to_du(connector);
1830
1831	num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
1832
1833	return ((vmw_connector_to_du(connector)->unit < num_displays &&
1834		 du->pref_active) ?
1835		connector_status_connected : connector_status_disconnected);
1836}
1837
1838static struct drm_display_mode vmw_kms_connector_builtin[] = {
1839	/* 640x480@60Hz */
1840	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
1841		   752, 800, 0, 480, 489, 492, 525, 0,
1842		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1843	/* 800x600@60Hz */
1844	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
1845		   968, 1056, 0, 600, 601, 605, 628, 0,
1846		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1847	/* 1024x768@60Hz */
1848	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
1849		   1184, 1344, 0, 768, 771, 777, 806, 0,
1850		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1851	/* 1152x864@75Hz */
1852	{ DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
1853		   1344, 1600, 0, 864, 865, 868, 900, 0,
1854		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1855	/* 1280x768@60Hz */
1856	{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
1857		   1472, 1664, 0, 768, 771, 778, 798, 0,
1858		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1859	/* 1280x800@60Hz */
1860	{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
1861		   1480, 1680, 0, 800, 803, 809, 831, 0,
1862		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
1863	/* 1280x960@60Hz */
1864	{ DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
1865		   1488, 1800, 0, 960, 961, 964, 1000, 0,
1866		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1867	/* 1280x1024@60Hz */
1868	{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
1869		   1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
1870		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1871	/* 1360x768@60Hz */
1872	{ DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
1873		   1536, 1792, 0, 768, 771, 777, 795, 0,
1874		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1875	/* 1440x1050@60Hz */
1876	{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
1877		   1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
1878		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1879	/* 1440x900@60Hz */
1880	{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
1881		   1672, 1904, 0, 900, 903, 909, 934, 0,
1882		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1883	/* 1600x1200@60Hz */
1884	{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
1885		   1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
1886		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1887	/* 1680x1050@60Hz */
1888	{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
1889		   1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
1890		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1891	/* 1792x1344@60Hz */
1892	{ DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
1893		   2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
1894		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1895	/* 1853x1392@60Hz */
1896	{ DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
1897		   2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
1898		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1899	/* 1920x1200@60Hz */
1900	{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
1901		   2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
1902		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1903	/* 1920x1440@60Hz */
1904	{ DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
1905		   2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
1906		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1907	/* 2560x1600@60Hz */
1908	{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
1909		   3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
1910		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1911	/* Terminate */
1912	{ DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
1913};
1914
1915/**
1916 * vmw_guess_mode_timing - Provide fake timings for a
1917 * 60Hz vrefresh mode.
1918 *
1919 * @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay
1920 * members filled in.
1921 */
1922static void vmw_guess_mode_timing(struct drm_display_mode *mode)
1923{
1924	mode->hsync_start = mode->hdisplay + 50;
1925	mode->hsync_end = mode->hsync_start + 50;
1926	mode->htotal = mode->hsync_end + 50;
1927
1928	mode->vsync_start = mode->vdisplay + 50;
1929	mode->vsync_end = mode->vsync_start + 50;
1930	mode->vtotal = mode->vsync_end + 50;
1931
1932	mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
1933	mode->vrefresh = drm_mode_vrefresh(mode);
1934}
1935
1936
1937int vmw_du_connector_fill_modes(struct drm_connector *connector,
1938				uint32_t max_width, uint32_t max_height)
1939{
1940	struct vmw_display_unit *du = vmw_connector_to_du(connector);
1941	struct drm_device *dev = connector->dev;
1942	struct vmw_private *dev_priv = vmw_priv(dev);
1943	struct drm_display_mode *mode = NULL;
1944	struct drm_display_mode *bmode;
1945	struct drm_display_mode prefmode = { DRM_MODE("preferred",
1946		DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
1947		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1948		DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
1949	};
1950	int i;
1951	u32 assumed_bpp = 2;
1952
1953	/*
1954	 * If using screen objects, then assume 32-bpp because that's what the
1955	 * SVGA device is assuming
1956	 */
1957	if (dev_priv->sou_priv)
1958		assumed_bpp = 4;
1959
1960	/* Add preferred mode */
1961	{
1962		mode = drm_mode_duplicate(dev, &prefmode);
1963		if (!mode)
1964			return 0;
1965		mode->hdisplay = du->pref_width;
1966		mode->vdisplay = du->pref_height;
1967		vmw_guess_mode_timing(mode);
1968
1969		if (vmw_kms_validate_mode_vram(dev_priv,
1970						mode->hdisplay * assumed_bpp,
1971						mode->vdisplay)) {
1972			drm_mode_probed_add(connector, mode);
1973		} else {
1974			drm_mode_destroy(dev, mode);
1975			mode = NULL;
1976		}
1977
1978		if (du->pref_mode) {
1979			list_del_init(&du->pref_mode->head);
1980			drm_mode_destroy(dev, du->pref_mode);
1981		}
1982
1983		/* mode might be null here, this is intended */
1984		du->pref_mode = mode;
1985	}
1986
1987	for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) {
1988		bmode = &vmw_kms_connector_builtin[i];
1989		if (bmode->hdisplay > max_width ||
1990		    bmode->vdisplay > max_height)
1991			continue;
1992
1993		if (!vmw_kms_validate_mode_vram(dev_priv,
1994						bmode->hdisplay * assumed_bpp,
1995						bmode->vdisplay))
1996			continue;
1997
1998		mode = drm_mode_duplicate(dev, bmode);
1999		if (!mode)
2000			return 0;
2001		mode->vrefresh = drm_mode_vrefresh(mode);
2002
2003		drm_mode_probed_add(connector, mode);
2004	}
2005
2006	/* Move the prefered mode first, help apps pick the right mode. */
2007	if (du->pref_mode)
2008		list_move(&du->pref_mode->head, &connector->probed_modes);
2009
2010	drm_mode_connector_list_update(connector, true);
2011
2012	return 1;
2013}
2014
2015int vmw_du_connector_set_property(struct drm_connector *connector,
2016				  struct drm_property *property,
2017				  uint64_t val)
2018{
2019	return 0;
2020}
2021
2022
2023int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
2024				struct drm_file *file_priv)
2025{
2026	struct vmw_private *dev_priv = vmw_priv(dev);
2027	struct drm_vmw_update_layout_arg *arg =
2028		(struct drm_vmw_update_layout_arg *)data;
2029	void __user *user_rects;
2030	struct drm_vmw_rect *rects;
2031	unsigned rects_size;
2032	int ret;
2033	int i;
2034	struct drm_mode_config *mode_config = &dev->mode_config;
2035
2036	if (!arg->num_outputs) {
2037		struct drm_vmw_rect def_rect = {0, 0, 800, 600};
2038		vmw_du_update_layout(dev_priv, 1, &def_rect);
2039		return 0;
2040	}
2041
2042	rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
2043	rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect),
2044			GFP_KERNEL);
2045	if (unlikely(!rects))
2046		return -ENOMEM;
2047
2048	user_rects = (void __user *)(unsigned long)arg->rects;
2049	ret = copy_from_user(rects, user_rects, rects_size);
2050	if (unlikely(ret != 0)) {
2051		DRM_ERROR("Failed to get rects.\n");
2052		ret = -EFAULT;
2053		goto out_free;
2054	}
2055
2056	for (i = 0; i < arg->num_outputs; ++i) {
2057		if (rects[i].x < 0 ||
2058		    rects[i].y < 0 ||
2059		    rects[i].x + rects[i].w > mode_config->max_width ||
2060		    rects[i].y + rects[i].h > mode_config->max_height) {
2061			DRM_ERROR("Invalid GUI layout.\n");
2062			ret = -EINVAL;
2063			goto out_free;
2064		}
2065	}
2066
2067	vmw_du_update_layout(dev_priv, arg->num_outputs, rects);
2068
2069out_free:
2070	kfree(rects);
2071	return ret;
2072}
2073