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 */
43void 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_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
87int 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
123int 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);
153err_unreserve:
154	ttm_bo_unreserve(&dmabuf->base);
155
156	return ret;
157}
158
159
160void 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
173int 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
238int 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
254void 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);
345err_unreserve:
346	ttm_bo_unreserve(bo);
347}
348
349void 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
376int 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
393struct 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
401void 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
420static 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);
562out_free_tmp:
563	kfree(tmp);
564
565	return ret;
566}
567
568int 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
611static 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
617static 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
713out_err3:
714	drm_framebuffer_cleanup(&vfbs->base.base);
715out_err2:
716	kfree(vfbs);
717out_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
728struct vmw_framebuffer_dmabuf {
729	struct vmw_framebuffer base;
730	struct vmw_dma_buffer *buffer;
731};
732
733void 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
745static 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
779static 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
823static 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
919int 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
961static 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 */
970static 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
991static 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
1005static 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
1083out_err3:
1084	drm_framebuffer_cleanup(&vfbd->base.base);
1085out_err2:
1086	kfree(vfbd);
1087out_err1:
1088	return ret;
1089}
1090
1091/*
1092 * Generic Kernel modesetting functions
1093 */
1094
1095static 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
1164err_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
1181static struct drm_mode_config_funcs vmw_kms_funcs = {
1182	.fb_create = vmw_kms_fb_create,
1183};
1184
1185int 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);
1315out_free_tmp:
1316	kfree(tmp);
1317
1318	return ret;
1319}
1320
1321int 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
1428int 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
1448int 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
1463int 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
1498out:
1499	mutex_unlock(&dev->mode_config.mutex);
1500
1501	return ret;
1502}
1503
1504int 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
1525int 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
1574int 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
1606bool 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 */
1617u32 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 */
1625int 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 */
1633void vmw_disable_vblank(struct drm_device *dev, int crtc)
1634{
1635}
1636
1637
1638/*
1639 * Small shared kms functions.
1640 */
1641
1642int 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
1684int 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 = event->base.file_priv;
1692	struct vmw_fence_obj *fence = NULL;
1693	struct drm_clip_rect clips;
1694	int ret;
1695
1696	/* require ScreenObject support for page flipping */
1697	if (!dev_priv->sou_priv)
1698		return -ENOSYS;
1699
1700	if (!vmw_kms_screen_object_flippable(dev_priv, crtc))
1701		return -EINVAL;
1702
1703	crtc->fb = fb;
1704
1705	/* do a full screen dirty update */
1706	clips.x1 = clips.y1 = 0;
1707	clips.x2 = fb->width;
1708	clips.y2 = fb->height;
1709
1710	if (vfb->dmabuf)
1711		ret = do_dmabuf_dirty_sou(file_priv, dev_priv, vfb,
1712					  0, 0, &clips, 1, 1, &fence);
1713	else
1714		ret = do_surface_dirty_sou(dev_priv, file_priv, vfb,
1715					   0, 0, &clips, 1, 1, &fence);
1716
1717
1718	if (ret != 0)
1719		goto out_no_fence;
1720	if (!fence) {
1721		ret = -EINVAL;
1722		goto out_no_fence;
1723	}
1724
1725	ret = vmw_event_fence_action_queue(file_priv, fence,
1726					   &event->base,
1727					   &event->event.tv_sec,
1728					   &event->event.tv_usec,
1729					   true);
1730
1731	/*
1732	 * No need to hold on to this now. The only cleanup
1733	 * we need to do if we fail is unref the fence.
1734	 */
1735	vmw_fence_obj_unreference(&fence);
1736
1737	if (vmw_crtc_to_du(crtc)->is_implicit)
1738		vmw_kms_screen_object_update_implicit_fb(dev_priv, crtc);
1739
1740	return ret;
1741
1742out_no_fence:
1743	crtc->fb = old_fb;
1744	return ret;
1745}
1746
1747
1748void vmw_du_crtc_save(struct drm_crtc *crtc)
1749{
1750}
1751
1752void vmw_du_crtc_restore(struct drm_crtc *crtc)
1753{
1754}
1755
1756void vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
1757			   u16 *r, u16 *g, u16 *b,
1758			   uint32_t start, uint32_t size)
1759{
1760	struct vmw_private *dev_priv = vmw_priv(crtc->dev);
1761	int i;
1762
1763	for (i = 0; i < size; i++) {
1764		DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
1765			  r[i], g[i], b[i]);
1766		vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
1767		vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
1768		vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
1769	}
1770}
1771
1772void vmw_du_connector_dpms(struct drm_connector *connector, int mode)
1773{
1774}
1775
1776void vmw_du_connector_save(struct drm_connector *connector)
1777{
1778}
1779
1780void vmw_du_connector_restore(struct drm_connector *connector)
1781{
1782}
1783
1784enum drm_connector_status
1785vmw_du_connector_detect(struct drm_connector *connector, bool force)
1786{
1787	uint32_t num_displays;
1788	struct drm_device *dev = connector->dev;
1789	struct vmw_private *dev_priv = vmw_priv(dev);
1790	struct vmw_display_unit *du = vmw_connector_to_du(connector);
1791
1792	mutex_lock(&dev_priv->hw_mutex);
1793	num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
1794	mutex_unlock(&dev_priv->hw_mutex);
1795
1796	return ((vmw_connector_to_du(connector)->unit < num_displays &&
1797		 du->pref_active) ?
1798		connector_status_connected : connector_status_disconnected);
1799}
1800
1801static struct drm_display_mode vmw_kms_connector_builtin[] = {
1802	/* 640x480@60Hz */
1803	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
1804		   752, 800, 0, 480, 489, 492, 525, 0,
1805		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1806	/* 800x600@60Hz */
1807	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
1808		   968, 1056, 0, 600, 601, 605, 628, 0,
1809		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1810	/* 1024x768@60Hz */
1811	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
1812		   1184, 1344, 0, 768, 771, 777, 806, 0,
1813		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1814	/* 1152x864@75Hz */
1815	{ DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
1816		   1344, 1600, 0, 864, 865, 868, 900, 0,
1817		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1818	/* 1280x768@60Hz */
1819	{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
1820		   1472, 1664, 0, 768, 771, 778, 798, 0,
1821		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1822	/* 1280x800@60Hz */
1823	{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
1824		   1480, 1680, 0, 800, 803, 809, 831, 0,
1825		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
1826	/* 1280x960@60Hz */
1827	{ DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
1828		   1488, 1800, 0, 960, 961, 964, 1000, 0,
1829		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1830	/* 1280x1024@60Hz */
1831	{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
1832		   1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
1833		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1834	/* 1360x768@60Hz */
1835	{ DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
1836		   1536, 1792, 0, 768, 771, 777, 795, 0,
1837		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1838	/* 1440x1050@60Hz */
1839	{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
1840		   1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
1841		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1842	/* 1440x900@60Hz */
1843	{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
1844		   1672, 1904, 0, 900, 903, 909, 934, 0,
1845		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1846	/* 1600x1200@60Hz */
1847	{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
1848		   1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
1849		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1850	/* 1680x1050@60Hz */
1851	{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
1852		   1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
1853		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1854	/* 1792x1344@60Hz */
1855	{ DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
1856		   2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
1857		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1858	/* 1853x1392@60Hz */
1859	{ DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
1860		   2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
1861		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1862	/* 1920x1200@60Hz */
1863	{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
1864		   2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
1865		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1866	/* 1920x1440@60Hz */
1867	{ DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
1868		   2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
1869		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1870	/* 2560x1600@60Hz */
1871	{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
1872		   3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
1873		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1874	/* Terminate */
1875	{ DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
1876};
1877
1878/**
1879 * vmw_guess_mode_timing - Provide fake timings for a
1880 * 60Hz vrefresh mode.
1881 *
1882 * @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay
1883 * members filled in.
1884 */
1885static void vmw_guess_mode_timing(struct drm_display_mode *mode)
1886{
1887	mode->hsync_start = mode->hdisplay + 50;
1888	mode->hsync_end = mode->hsync_start + 50;
1889	mode->htotal = mode->hsync_end + 50;
1890
1891	mode->vsync_start = mode->vdisplay + 50;
1892	mode->vsync_end = mode->vsync_start + 50;
1893	mode->vtotal = mode->vsync_end + 50;
1894
1895	mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
1896	mode->vrefresh = drm_mode_vrefresh(mode);
1897}
1898
1899
1900int vmw_du_connector_fill_modes(struct drm_connector *connector,
1901				uint32_t max_width, uint32_t max_height)
1902{
1903	struct vmw_display_unit *du = vmw_connector_to_du(connector);
1904	struct drm_device *dev = connector->dev;
1905	struct vmw_private *dev_priv = vmw_priv(dev);
1906	struct drm_display_mode *mode = NULL;
1907	struct drm_display_mode *bmode;
1908	struct drm_display_mode prefmode = { DRM_MODE("preferred",
1909		DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
1910		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1911		DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
1912	};
1913	int i;
1914
1915	/* Add preferred mode */
1916	{
1917		mode = drm_mode_duplicate(dev, &prefmode);
1918		if (!mode)
1919			return 0;
1920		mode->hdisplay = du->pref_width;
1921		mode->vdisplay = du->pref_height;
1922		vmw_guess_mode_timing(mode);
1923
1924		if (vmw_kms_validate_mode_vram(dev_priv, mode->hdisplay * 2,
1925					       mode->vdisplay)) {
1926			drm_mode_probed_add(connector, mode);
1927		} else {
1928			drm_mode_destroy(dev, mode);
1929			mode = NULL;
1930		}
1931
1932		if (du->pref_mode) {
1933			list_del_init(&du->pref_mode->head);
1934			drm_mode_destroy(dev, du->pref_mode);
1935		}
1936
1937		/* mode might be null here, this is intended */
1938		du->pref_mode = mode;
1939	}
1940
1941	for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) {
1942		bmode = &vmw_kms_connector_builtin[i];
1943		if (bmode->hdisplay > max_width ||
1944		    bmode->vdisplay > max_height)
1945			continue;
1946
1947		if (!vmw_kms_validate_mode_vram(dev_priv, bmode->hdisplay * 2,
1948						bmode->vdisplay))
1949			continue;
1950
1951		mode = drm_mode_duplicate(dev, bmode);
1952		if (!mode)
1953			return 0;
1954		mode->vrefresh = drm_mode_vrefresh(mode);
1955
1956		drm_mode_probed_add(connector, mode);
1957	}
1958
1959	/* Move the prefered mode first, help apps pick the right mode. */
1960	if (du->pref_mode)
1961		list_move(&du->pref_mode->head, &connector->probed_modes);
1962
1963	drm_mode_connector_list_update(connector);
1964
1965	return 1;
1966}
1967
1968int vmw_du_connector_set_property(struct drm_connector *connector,
1969				  struct drm_property *property,
1970				  uint64_t val)
1971{
1972	return 0;
1973}
1974
1975
1976int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
1977				struct drm_file *file_priv)
1978{
1979	struct vmw_private *dev_priv = vmw_priv(dev);
1980	struct drm_vmw_update_layout_arg *arg =
1981		(struct drm_vmw_update_layout_arg *)data;
1982	struct vmw_master *vmaster = vmw_master(file_priv->master);
1983	void __user *user_rects;
1984	struct drm_vmw_rect *rects;
1985	unsigned rects_size;
1986	int ret;
1987	int i;
1988	struct drm_mode_config *mode_config = &dev->mode_config;
1989
1990	ret = ttm_read_lock(&vmaster->lock, true);
1991	if (unlikely(ret != 0))
1992		return ret;
1993
1994	if (!arg->num_outputs) {
1995		struct drm_vmw_rect def_rect = {0, 0, 800, 600};
1996		vmw_du_update_layout(dev_priv, 1, &def_rect);
1997		goto out_unlock;
1998	}
1999
2000	rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
2001	rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect),
2002			GFP_KERNEL);
2003	if (unlikely(!rects)) {
2004		ret = -ENOMEM;
2005		goto out_unlock;
2006	}
2007
2008	user_rects = (void __user *)(unsigned long)arg->rects;
2009	ret = copy_from_user(rects, user_rects, rects_size);
2010	if (unlikely(ret != 0)) {
2011		DRM_ERROR("Failed to get rects.\n");
2012		ret = -EFAULT;
2013		goto out_free;
2014	}
2015
2016	for (i = 0; i < arg->num_outputs; ++i) {
2017		if (rects[i].x < 0 ||
2018		    rects[i].y < 0 ||
2019		    rects[i].x + rects[i].w > mode_config->max_width ||
2020		    rects[i].y + rects[i].h > mode_config->max_height) {
2021			DRM_ERROR("Invalid GUI layout.\n");
2022			ret = -EINVAL;
2023			goto out_free;
2024		}
2025	}
2026
2027	vmw_du_update_layout(dev_priv, arg->num_outputs, rects);
2028
2029out_free:
2030	kfree(rects);
2031out_unlock:
2032	ttm_read_unlock(&vmaster->lock);
2033	return ret;
2034}
2035