vbox_mode.c@ 63554

Last change on this file since 63554 was 62568, checked in by vboxsync, 9 years ago
bugref:8087: Additions/x11: support non-root X server: fix regression from not mapping all of the guest VRAM in the kernel driver: we were no longer reporting the host flags location correctly, preventing IRQ handling and dynamic resizing from working with large VRAM sizes.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 28.7 KB

Line
1	/* $Id: vbox_mode.c 62568 2016-07-26 15:30:28Z vboxsync $ */
2	/** @file
3	* VirtualBox Additions Linux kernel video driver
4	*/
5
6	/*
7	* Copyright (C) 2013-2016 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	* --------------------------------------------------------------------
17	*
18	* This code is based on
19	* ast_mode.c
20	* with the following copyright and permission notice:
21	*
22	* Copyright 2012 Red Hat Inc.
23	* Parts based on xf86-video-ast
24	* Copyright (c) 2005 ASPEED Technology Inc.
25	*
26	* Permission is hereby granted, free of charge, to any person obtaining a
27	* copy of this software and associated documentation files (the
28	* "Software"), to deal in the Software without restriction, including
29	* without limitation the rights to use, copy, modify, merge, publish,
30	* distribute, sub license, and/or sell copies of the Software, and to
31	* permit persons to whom the Software is furnished to do so, subject to
32	* the following conditions:
33	*
34	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
35	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
36	* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
37	* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
38	* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
39	* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
40	* USE OR OTHER DEALINGS IN THE SOFTWARE.
41	*
42	* The above copyright notice and this permission notice (including the
43	* next paragraph) shall be included in all copies or substantial portions
44	* of the Software.
45	*
46	*/
47	/*
48	* Authors: Dave Airlie <airlied@redhat.com>
49	*/
50	#include "vbox_drv.h"
51
52	#include <VBox/VBoxVideo.h>
53
54	#include <linux/export.h>
55	#include <drm/drm_crtc_helper.h>
56	#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 18, 0)
57	# include <drm/drm_plane_helper.h>
58	#endif
59
60	static int vbox_cursor_set2(struct drm_crtc crtc, struct drm_file file_priv,
61	uint32_t handle, uint32_t width, uint32_t height,
62	int32_t hot_x, int32_t hot_y);
63	static int vbox_cursor_move(struct drm_crtc *crtc, int x, int y);
64
65	/** Set a graphics mode. Poke any required values into registers, do an HGSMI
66	* mode set and tell the host we support advanced graphics functions.
67	*/
68	static void vbox_do_modeset(struct drm_crtc *crtc,
69	const struct drm_display_mode *mode)
70	{
71	struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
72	struct vbox_private *vbox;
73	int width, height, bpp, pitch;
74	unsigned crtc_id;
75	uint16_t flags;
76
77	LogFunc(("vboxvideo: %d: vbox_crtc=%p, CRTC_FB(crtc)=%p\n", __LINE__,
78	vbox_crtc, CRTC_FB(crtc)));
79	vbox = crtc->dev->dev_private;
80	width = mode->hdisplay ? mode->hdisplay : 640;
81	height = mode->vdisplay ? mode->vdisplay : 480;
82	crtc_id = vbox_crtc->crtc_id;
83	bpp = crtc->enabled ? CRTC_FB(crtc)->bits_per_pixel : 32;
84	#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 3, 0)
85	pitch = crtc->enabled ? CRTC_FB(crtc)->pitch : width * bpp / 8;
86	#else
87	pitch = crtc->enabled ? CRTC_FB(crtc)->pitches[0] : width * bpp / 8;
88	#endif
89	/* This is the old way of setting graphics modes. It assumed one screen
90	* and a frame-buffer at the start of video RAM. On older versions of
91	* VirtualBox, certain parts of the code still assume that the first
92	* screen is programmed this way, so try to fake it. */
93	if ( vbox_crtc->crtc_id == 0
94	&& crtc->enabled
95	&& vbox_crtc->fb_offset / pitch < 0xffff - crtc->y
96	&& vbox_crtc->fb_offset % (bpp / 8) == 0)
97	VBoxVideoSetModeRegisters(width, height, pitch * 8 / bpp,
98	CRTC_FB(crtc)->bits_per_pixel, 0,
99	vbox_crtc->fb_offset % pitch / bpp * 8 + crtc->x,
100	vbox_crtc->fb_offset / pitch + crtc->y);
101	flags = VBVA_SCREEN_F_ACTIVE;
102	flags \|= (crtc->enabled && !vbox_crtc->blanked ? 0 : VBVA_SCREEN_F_BLANK);
103	flags \|= (vbox_crtc->disconnected ? VBVA_SCREEN_F_DISABLED : 0);
104	VBoxHGSMIProcessDisplayInfo(&vbox->submit_info, vbox_crtc->crtc_id,
105	crtc->x, crtc->y,
106	crtc->x * bpp / 8 + crtc->y * pitch,
107	pitch, width, height,
108	vbox_crtc->blanked ? 0 : bpp, flags);
109	VBoxHGSMIReportFlagsLocation(&vbox->submit_info, vbox->vram_map_start
110	+ vbox->host_flags_offset);
111	LogFunc(("vboxvideo: %d\n", __LINE__));
112	}
113
114	static int vbox_set_view(struct drm_crtc *crtc)
115	{
116	struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
117	struct vbox_private *vbox = crtc->dev->dev_private;
118	void *p;
119
120	LogFunc(("vboxvideo: %d: vbox_crtc=%p\n", __LINE__, vbox_crtc));
121	/* Tell the host about the view. This design originally targeted the
122	* Windows XP driver architecture and assumed that each screen would have
123	* a dedicated frame buffer with the command buffer following it, the whole
124	* being a "view". The host works out which screen a command buffer belongs
125	* to by checking whether it is in the first view, then whether it is in the
126	* second and so on. The first match wins. We cheat around this by making
127	* the first view be the managed memory plus the first command buffer, the
128	* second the same plus the second buffer and so on. */
129	p = VBoxHGSMIBufferAlloc(&vbox->submit_info, sizeof(VBVAINFOVIEW), HGSMI_CH_VBVA,
130	VBVA_INFO_VIEW);
131	if (p)
132	{
133	VBVAINFOVIEW pInfo = (VBVAINFOVIEW )p;
134	pInfo->u32ViewIndex = vbox_crtc->crtc_id;
135	pInfo->u32ViewOffset = vbox_crtc->fb_offset;
136	pInfo->u32ViewSize = vbox->available_vram_size - vbox_crtc->fb_offset
137	+ vbox_crtc->crtc_id * VBVA_MIN_BUFFER_SIZE;
138	pInfo->u32MaxScreenSize = vbox->available_vram_size - vbox_crtc->fb_offset;
139	VBoxHGSMIBufferSubmit(&vbox->submit_info, p);
140	VBoxHGSMIBufferFree(&vbox->submit_info, p);
141	}
142	else
143	return -ENOMEM;
144	LogFunc(("vboxvideo: %d: p=%p\n", __LINE__, p));
145	return 0;
146	}
147
148	static void vbox_crtc_load_lut(struct drm_crtc *crtc)
149	{
150
151	}
152
153	static void vbox_crtc_dpms(struct drm_crtc *crtc, int mode)
154	{
155	struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
156	struct vbox_private *vbox = crtc->dev->dev_private;
157
158	LogFunc(("vboxvideo: %d: vbox_crtc=%p, mode=%d\n", __LINE__, vbox_crtc,
159	mode));
160	switch (mode) {
161	case DRM_MODE_DPMS_ON:
162	vbox_crtc->blanked = false;
163	break;
164	case DRM_MODE_DPMS_STANDBY:
165	case DRM_MODE_DPMS_SUSPEND:
166	case DRM_MODE_DPMS_OFF:
167	vbox_crtc->blanked = true;
168	break;
169	}
170	mutex_lock(&vbox->hw_mutex);
171	vbox_do_modeset(crtc, &crtc->hwmode);
172	mutex_unlock(&vbox->hw_mutex);
173	LogFunc(("vboxvideo: %d\n", __LINE__));
174	}
175
176	static bool vbox_crtc_mode_fixup(struct drm_crtc *crtc,
177	const struct drm_display_mode *mode,
178	struct drm_display_mode *adjusted_mode)
179	{
180	return true;
181	}
182
183	/* We move buffers which are not in active use out of VRAM to save memory. */
184	static int vbox_crtc_do_set_base(struct drm_crtc *crtc,
185	struct drm_framebuffer *fb,
186	int x, int y, int atomic)
187	{
188	struct vbox_private *vbox = crtc->dev->dev_private;
189	struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
190	struct drm_gem_object *obj;
191	struct vbox_framebuffer *vbox_fb;
192	struct vbox_bo *bo;
193	int ret;
194	u64 gpu_addr;
195
196	LogFunc(("vboxvideo: %d: fb=%p, vbox_crtc=%p\n", __LINE__, fb, vbox_crtc));
197	/* push the previous fb to system ram */
198	if (!atomic && fb) {
199	vbox_fb = to_vbox_framebuffer(fb);
200	obj = vbox_fb->obj;
201	bo = gem_to_vbox_bo(obj);
202	ret = vbox_bo_reserve(bo, false);
203	if (ret)
204	return ret;
205	vbox_bo_push_sysram(bo);
206	vbox_bo_unreserve(bo);
207	}
208
209	vbox_fb = to_vbox_framebuffer(CRTC_FB(crtc));
210	obj = vbox_fb->obj;
211	bo = gem_to_vbox_bo(obj);
212
213	ret = vbox_bo_reserve(bo, false);
214	if (ret)
215	return ret;
216
217	ret = vbox_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr);
218	if (ret) {
219	vbox_bo_unreserve(bo);
220	return ret;
221	}
222
223	if (&vbox->fbdev->afb == vbox_fb) {
224	/* if pushing console in kmap it */
225	ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
226	if (ret)
227	DRM_ERROR("failed to kmap fbcon\n");
228	else
229	vbox_fbdev_set_base(vbox, gpu_addr);
230	}
231	vbox_bo_unreserve(bo);
232
233	/* vbox_set_start_address_crt1(crtc, (u32)gpu_addr); */
234	vbox_crtc->fb_offset = gpu_addr;
235	if (vbox_crtc->crtc_id == 0) {
236	vbox->input_mapping_width = CRTC_FB(crtc)->width;
237	vbox->input_mapping_height = CRTC_FB(crtc)->height;
238	}
239	LogFunc(("vboxvideo: %d: vbox_fb=%p, obj=%p, bo=%p, gpu_addr=%u\n",
240	__LINE__, vbox_fb, obj, bo, (unsigned)gpu_addr));
241	return 0;
242	}
243
244	static int vbox_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
245	struct drm_framebuffer *old_fb)
246	{
247	LogFunc(("vboxvideo: %d\n", __LINE__));
248	return vbox_crtc_do_set_base(crtc, old_fb, x, y, 0);
249	}
250
251	static int vbox_crtc_mode_set(struct drm_crtc *crtc,
252	struct drm_display_mode *mode,
253	struct drm_display_mode *adjusted_mode,
254	int x, int y,
255	struct drm_framebuffer *old_fb)
256	{
257	struct vbox_private *vbox = crtc->dev->dev_private;
258	int rc = 0;
259
260	LogFunc(("vboxvideo: %d: vbox=%p\n", __LINE__, vbox));
261	vbox_crtc_mode_set_base(crtc, x, y, old_fb);
262	mutex_lock(&vbox->hw_mutex);
263	/* Disable VBVA when someone sets a new mode until they send us dirty
264	* rectangles, which proves that they can. A single screen can work
265	* without VBVA. */
266	vbox_disable_accel(vbox);
267	rc = vbox_set_view(crtc);
268	if (!rc)
269	vbox_do_modeset(crtc, mode);
270	/* Note that the input mapping is always relative to the first screen. */
271	VBoxHGSMIUpdateInputMapping(&vbox->submit_info, 0, 0,
272	vbox->input_mapping_width,
273	vbox->input_mapping_height);
274	mutex_unlock(&vbox->hw_mutex);
275	LogFunc(("vboxvideo: %d\n", __LINE__));
276	return rc;
277	}
278
279	static void vbox_crtc_disable(struct drm_crtc *crtc)
280	{
281
282	}
283
284	static void vbox_crtc_prepare(struct drm_crtc *crtc)
285	{
286
287	}
288
289	static void vbox_crtc_commit(struct drm_crtc *crtc)
290	{
291
292	}
293
294
295	static const struct drm_crtc_helper_funcs vbox_crtc_helper_funcs = {
296	.dpms = vbox_crtc_dpms,
297	.mode_fixup = vbox_crtc_mode_fixup,
298	.mode_set = vbox_crtc_mode_set,
299	/* .mode_set_base = vbox_crtc_mode_set_base, */
300	.disable = vbox_crtc_disable,
301	.load_lut = vbox_crtc_load_lut,
302	.prepare = vbox_crtc_prepare,
303	.commit = vbox_crtc_commit,
304
305	};
306
307	static void vbox_crtc_reset(struct drm_crtc *crtc)
308	{
309
310	}
311
312
313	static void vbox_crtc_destroy(struct drm_crtc *crtc)
314	{
315	drm_crtc_cleanup(crtc);
316	kfree(crtc);
317	}
318
319	static const struct drm_crtc_funcs vbox_crtc_funcs = {
320	.cursor_move = vbox_cursor_move,
321	.cursor_set2 = vbox_cursor_set2,
322	.reset = vbox_crtc_reset,
323	.set_config = drm_crtc_helper_set_config,
324	/* .gamma_set = vbox_crtc_gamma_set, */
325	.destroy = vbox_crtc_destroy,
326	};
327
328	static struct vbox_crtc vbox_crtc_init(struct drm_device dev, unsigned i)
329	{
330	struct vbox_crtc *vbox_crtc;
331
332	LogFunc(("vboxvideo: %d\n", __LINE__));
333	vbox_crtc = kzalloc(sizeof(struct vbox_crtc), GFP_KERNEL);
334	if (!vbox_crtc)
335	return NULL;
336	vbox_crtc->crtc_id = i;
337
338	drm_crtc_init(dev, &vbox_crtc->base, &vbox_crtc_funcs);
339	drm_mode_crtc_set_gamma_size(&vbox_crtc->base, 256);
340	drm_crtc_helper_add(&vbox_crtc->base, &vbox_crtc_helper_funcs);
341	LogFunc(("vboxvideo: %d: crtc=%p\n", __LINE__, vbox_crtc));
342
343	return vbox_crtc;
344	}
345
346	static void vbox_encoder_destroy(struct drm_encoder *encoder)
347	{
348	LogFunc(("vboxvideo: %d: encoder=%p\n", __LINE__, encoder));
349	drm_encoder_cleanup(encoder);
350	kfree(encoder);
351	}
352
353	#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 13, 0)
354	static struct drm_encoder drm_encoder_find(struct drm_device dev, uint32_t id)
355	{
356	struct drm_mode_object *mo;
357	mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
358	return mo ? obj_to_encoder(mo) : NULL;
359	}
360	#endif
361
362	static struct drm_encoder vbox_best_single_encoder(struct drm_connector connector)
363	{
364	int enc_id = connector->encoder_ids[0];
365
366	LogFunc(("vboxvideo: %d: connector=%p\n", __LINE__, connector));
367	/* pick the encoder ids */
368	if (enc_id)
369	return drm_encoder_find(connector->dev, enc_id);
370	LogFunc(("vboxvideo: %d\n", __LINE__));
371	return NULL;
372	}
373
374
375	static const struct drm_encoder_funcs vbox_enc_funcs = {
376	.destroy = vbox_encoder_destroy,
377	};
378
379	static void vbox_encoder_dpms(struct drm_encoder *encoder, int mode)
380	{
381
382	}
383
384	static bool vbox_mode_fixup(struct drm_encoder *encoder,
385	const struct drm_display_mode *mode,
386	struct drm_display_mode *adjusted_mode)
387	{
388	return true;
389	}
390
391	static void vbox_encoder_mode_set(struct drm_encoder *encoder,
392	struct drm_display_mode *mode,
393	struct drm_display_mode *adjusted_mode)
394	{
395	}
396
397	static void vbox_encoder_prepare(struct drm_encoder *encoder)
398	{
399
400	}
401
402	static void vbox_encoder_commit(struct drm_encoder *encoder)
403	{
404
405	}
406
407
408	static const struct drm_encoder_helper_funcs vbox_enc_helper_funcs = {
409	.dpms = vbox_encoder_dpms,
410	.mode_fixup = vbox_mode_fixup,
411	.prepare = vbox_encoder_prepare,
412	.commit = vbox_encoder_commit,
413	.mode_set = vbox_encoder_mode_set,
414	};
415
416	static struct drm_encoder vbox_encoder_init(struct drm_device dev, unsigned i)
417	{
418	struct vbox_encoder *vbox_encoder;
419
420	LogFunc(("vboxvideo: %d: dev=%d\n", __LINE__));
421	vbox_encoder = kzalloc(sizeof(struct vbox_encoder), GFP_KERNEL);
422	if (!vbox_encoder)
423	return NULL;
424
425	drm_encoder_init(dev, &vbox_encoder->base, &vbox_enc_funcs,
426	DRM_MODE_ENCODER_DAC
427	#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 5, 0)
428	, NULL
429	#endif
430	);
431	drm_encoder_helper_add(&vbox_encoder->base, &vbox_enc_helper_funcs);
432
433	vbox_encoder->base.possible_crtcs = 1 << i;
434	LogFunc(("vboxvideo: %d: vbox_encoder=%p\n", __LINE__, vbox_encoder));
435	return &vbox_encoder->base;
436	}
437
438	/** Generate EDID data with a mode-unique serial number for the virtual
439	* monitor to try to persuade Unity that different modes correspond to
440	* different monitors and it should not try to force the same resolution on
441	* them. */
442	static void vbox_set_edid(struct drm_connector *connector, int width,
443	int height)
444	{
445	enum { EDID_SIZE = 128 };
446	unsigned char edid[EDID_SIZE] = {
447	0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, /* header */
448	0x58, 0x58, /* manufacturer (VBX) */
449	0x00, 0x00, /* product code */
450	0x00, 0x00,0x00, 0x00, /* serial number goes here */
451	0x01, /* week of manufacture */
452	0x00, /* year of manufacture */
453	0x01, 0x03, /* EDID version */
454	0x80, /* capabilities - digital */
455	0x00, /* horiz. res in cm, zero for projectors */
456	0x00, /* vert. res in cm */
457	0x78, /* display gamma (120 == 2.2). */
458	0xEE, /* features (standby, suspend, off, RGB, standard colour space,
459	* preferred timing mode) */
460	0xEE, 0x91, 0xA3, 0x54, 0x4C, 0x99, 0x26, 0x0F, 0x50, 0x54,
461	/* chromaticity for standard colour space. */
462	0x00, 0x00, 0x00, /* no default timings */
463	0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
464	0x01, 0x01, 0x01, 0x01, /* no standard timings */
465	0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x06, 0x00, 0x02, 0x02, 0x02, 0x02,
466	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* descriptor block 1 goes here */
467	0x00, 0x00, 0x00, 0xFD, 0x00, /* descriptor block 2, monitor ranges */
468	0x00, 0xC8, 0x00, 0xC8, 0x64, 0x00, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20,
469	0x20, /* 0-200Hz vertical, 0-200KHz horizontal, 1000MHz pixel clock */
470	0x00, 0x00, 0x00, 0xFC, 0x00, /* descriptor block 3, monitor name */
471	'V', 'B', 'O', 'X', ' ', 'm', 'o', 'n', 'i', 't', 'o', 'r', '\n',
472	0x00, 0x00, 0x00, 0x10, 0x00, /* descriptor block 4: dummy data */
473	0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
474	0x20,
475	0x00, /* number of extensions */
476	0x00 /* checksum goes here */
477	};
478	int clock = (width + 6) * (height + 6) * 60 / 10000;
479	unsigned i;
480	unsigned sum = 0;
481
482	edid[12] = width & 0xff;
483	edid[13] = width >> 8;
484	edid[14] = height & 0xff;
485	edid[15] = height >> 8;
486	edid[54] = clock & 0xff;
487	edid[55] = clock >> 8;
488	edid[56] = width & 0xff;
489	edid[58] = (width >> 4) & 0xf0;
490	edid[59] = height & 0xff;
491	edid[61] = (height >> 4) & 0xf0;
492	for (i = 0; i < EDID_SIZE - 1; ++i)
493	sum += edid[i];
494	edid[EDID_SIZE - 1] = (0x100 - (sum & 0xFF)) & 0xFF;
495	drm_mode_connector_update_edid_property(connector, (struct edid *)edid);
496	}
497
498	static int vbox_get_modes(struct drm_connector *connector)
499	{
500	struct vbox_connector *vbox_connector = NULL;
501	struct drm_display_mode *mode = NULL;
502	struct vbox_private *vbox = NULL;
503	unsigned num_modes = 0;
504	int preferred_width, preferred_height;
505
506	LogFunc(("vboxvideo: %d: connector=%p\n", __LINE__, connector));
507	vbox_connector = to_vbox_connector(connector);
508	vbox = connector->dev->dev_private;
509	if (vbox_connector->vbox_crtc->crtc_id == 0)
510	vbox_enable_caps(vbox);
511	if (!vbox->initial_mode_queried) {
512	if (vbox_connector->vbox_crtc->crtc_id == 0) {
513	vbox->initial_mode_queried = true;
514	vbox_report_hotplug(vbox);
515	}
516	return drm_add_modes_noedid(connector, 800, 600);
517	}
518	num_modes = drm_add_modes_noedid(connector, 2560, 1600);
519	preferred_width = vbox_connector->mode_hint.width ? vbox_connector->mode_hint.width : 1024;
520	preferred_height = vbox_connector->mode_hint.height ? vbox_connector->mode_hint.height : 768;
521	mode = drm_cvt_mode(connector->dev, preferred_width, preferred_height, 60, false,
522	false, false);
523	if (mode)
524	{
525	mode->type \|= DRM_MODE_TYPE_PREFERRED;
526	drm_mode_probed_add(connector, mode);
527	++num_modes;
528	}
529	vbox_set_edid(connector, preferred_width, preferred_height);
530	return num_modes;
531	}
532
533	static int vbox_mode_valid(struct drm_connector *connector,
534	struct drm_display_mode *mode)
535	{
536	return MODE_OK;
537	}
538
539	static void vbox_connector_destroy(struct drm_connector *connector)
540	{
541	struct vbox_connector *vbox_connector = NULL;
542
543	LogFunc(("vboxvideo: %d: connector=%p\n", __LINE__, connector));
544	vbox_connector = to_vbox_connector(connector);
545	#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 17, 0)
546	drm_sysfs_connector_remove(connector);
547	#else
548	drm_connector_unregister(connector);
549	#endif
550	drm_connector_cleanup(connector);
551	kfree(connector);
552	}
553
554	static enum drm_connector_status
555	vbox_connector_detect(struct drm_connector *connector, bool force)
556	{
557	struct vbox_connector *vbox_connector = NULL;
558
559	(void) force;
560	LogFunc(("vboxvideo: %d: connector=%p\n", __LINE__, connector));
561	vbox_connector = to_vbox_connector(connector);
562	return vbox_connector->mode_hint.disconnected ?
563	connector_status_disconnected : connector_status_connected;
564	}
565
566	static int vbox_fill_modes(struct drm_connector *connector, uint32_t max_x, uint32_t max_y)
567	{
568	struct vbox_connector *vbox_connector;
569	struct drm_device *dev;
570	struct drm_display_mode mode, iterator;
571
572	LogFunc(("vboxvideo: %d: connector=%p, max_x=%lu, max_y = %lu\n", __LINE__,
573	connector, (unsigned long)max_x, (unsigned long)max_y));
574	vbox_connector = to_vbox_connector(connector);
575	dev = vbox_connector->base.dev;
576	list_for_each_entry_safe(mode, iterator, &connector->modes, head)
577	{
578	list_del(&mode->head);
579	drm_mode_destroy(dev, mode);
580	}
581	return drm_helper_probe_single_connector_modes(connector, max_x, max_y);
582	}
583
584	static const struct drm_connector_helper_funcs vbox_connector_helper_funcs = {
585	.mode_valid = vbox_mode_valid,
586	.get_modes = vbox_get_modes,
587	.best_encoder = vbox_best_single_encoder,
588	};
589
590	static const struct drm_connector_funcs vbox_connector_funcs = {
591	.dpms = drm_helper_connector_dpms,
592	.detect = vbox_connector_detect,
593	.fill_modes = vbox_fill_modes,
594	.destroy = vbox_connector_destroy,
595	};
596
597	static int vbox_connector_init(struct drm_device *dev,
598	struct vbox_crtc *vbox_crtc,
599	struct drm_encoder *encoder)
600	{
601	struct vbox_connector *vbox_connector;
602	struct drm_connector *connector;
603
604	LogFunc(("vboxvideo: %d: dev=%p, encoder=%p\n", __LINE__, dev,
605	encoder));
606	vbox_connector = kzalloc(sizeof(struct vbox_connector), GFP_KERNEL);
607	if (!vbox_connector)
608	return -ENOMEM;
609
610	connector = &vbox_connector->base;
611	vbox_connector->vbox_crtc = vbox_crtc;
612
613	drm_connector_init(dev, connector, &vbox_connector_funcs,
614	DRM_MODE_CONNECTOR_VGA);
615	drm_connector_helper_add(connector, &vbox_connector_helper_funcs);
616
617	connector->interlace_allowed = 0;
618	connector->doublescan_allowed = 0;
619
620	#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0)
621	drm_mode_create_suggested_offset_properties(dev);
622	drm_object_attach_property(&connector->base,
623	dev->mode_config.suggested_x_property, 0);
624	drm_object_attach_property(&connector->base,
625	dev->mode_config.suggested_y_property, 0);
626	#endif
627	#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 17, 0)
628	drm_sysfs_connector_add(connector);
629	#else
630	drm_connector_register(connector);
631	#endif
632
633	drm_mode_connector_attach_encoder(connector, encoder);
634
635	LogFunc(("vboxvideo: %d: connector=%p\n", __LINE__, connector));
636	return 0;
637	}
638
639	int vbox_mode_init(struct drm_device *dev)
640	{
641	struct vbox_private *vbox = dev->dev_private;
642	struct drm_encoder *encoder;
643	struct vbox_crtc *vbox_crtc;
644	unsigned i;
645	/* vbox_cursor_init(dev); */
646	LogFunc(("vboxvideo: %d: dev=%p\n", __LINE__, dev));
647	for (i = 0; i < vbox->num_crtcs; ++i)
648	{
649	vbox_crtc = vbox_crtc_init(dev, i);
650	if (!vbox_crtc)
651	return -ENOMEM;
652	encoder = vbox_encoder_init(dev, i);
653	if (!encoder)
654	return -ENOMEM;
655	vbox_connector_init(dev, vbox_crtc, encoder);
656	}
657	return 0;
658	}
659
660	void vbox_mode_fini(struct drm_device *dev)
661	{
662	/* vbox_cursor_fini(dev); */
663	}
664
665
666	/** Copy the ARGB image and generate the mask, which is needed in case the host
667	* does not support ARGB cursors. The mask is a 1BPP bitmap with the bit set
668	* if the corresponding alpha value in the ARGB image is greater than 0xF0. */
669	static void copy_cursor_image(u8 src, u8 dst, int width, int height,
670	size_t mask_size)
671	{
672	unsigned i, j;
673	size_t line_size = (width + 7) / 8;
674
675	memcpy(dst + mask_size, src, width * height * 4);
676	for (i = 0; i < height; ++i)
677	for (j = 0; j < width; ++j)
678	if (((uint32_t )src)[i width + j] > 0xf0000000)
679	dst[i * line_size + j / 8] \|= (0x80 >> (j % 8));
680	}
681
682	static int vbox_cursor_set2(struct drm_crtc crtc, struct drm_file file_priv,
683	uint32_t handle, uint32_t width, uint32_t height,
684	int32_t hot_x, int32_t hot_y)
685	{
686	struct vbox_private *vbox = crtc->dev->dev_private;
687	struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
688	struct drm_gem_object *obj;
689	struct vbox_bo *bo;
690	int ret, rc;
691	struct ttm_bo_kmap_obj uobj_map;
692	u8 *src;
693	u8 *dst = NULL;
694	u32 caps = 0;
695	size_t data_size, mask_size;
696	bool src_isiomem;
697
698	/* Re-set this regularly as in 5.0.20 and earlier the information was lost
699	* on save and restore. */
700	VBoxHGSMIUpdateInputMapping(&vbox->submit_info, 0, 0,
701	vbox->input_mapping_width,
702	vbox->input_mapping_height);
703	if (!handle) {
704	bool cursor_enabled = false;
705	struct drm_crtc *crtci;
706
707	/* Hide cursor. */
708	vbox_crtc->cursor_enabled = false;
709	list_for_each_entry(crtci, &vbox->dev->mode_config.crtc_list, head)
710	if (to_vbox_crtc(crtci)->cursor_enabled)
711	cursor_enabled = true;
712	if (!cursor_enabled)
713	VBoxHGSMIUpdatePointerShape(&vbox->submit_info, 0, 0, 0, 0, 0, NULL, 0);
714	return 0;
715	}
716	vbox_crtc->cursor_enabled = true;
717	if ( width > VBOX_MAX_CURSOR_WIDTH \|\| height > VBOX_MAX_CURSOR_HEIGHT
718	\|\| width == 0 \|\| height == 0)
719	return -EINVAL;
720	rc = VBoxQueryConfHGSMI(&vbox->submit_info,
721	VBOX_VBVA_CONF32_CURSOR_CAPABILITIES, &caps);
722	ret = -RTErrConvertToErrno(rc);
723	if (ret)
724	return ret;
725	if ( caps & VMMDEV_MOUSE_HOST_CANNOT_HWPOINTER
726	\|\| !(caps & VMMDEV_MOUSE_HOST_WANTS_ABSOLUTE))
727	return -EINVAL;
728
729	#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0)
730	obj = drm_gem_object_lookup(file_priv, handle);
731	#else
732	obj = drm_gem_object_lookup(crtc->dev, file_priv, handle);
733	#endif
734	if (obj)
735	{
736	bo = gem_to_vbox_bo(obj);
737	ret = vbox_bo_reserve(bo, false);
738	if (!ret)
739	{
740	/* The mask must be calculated based on the alpha channel, one bit
741	* per ARGB word, and must be 32-bit padded. */
742	mask_size = ((width + 7) / 8 * height + 3) & ~3;
743	data_size = width * height * 4 + mask_size;
744	vbox->cursor_hot_x = min((uint32_t)max(hot_x, 0), width);
745	vbox->cursor_hot_y = min((uint32_t)max(hot_y, 0), height);
746	vbox->cursor_width = width;
747	vbox->cursor_height = height;
748	vbox->cursor_data_size = data_size;
749	dst = vbox->cursor_data;
750	ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &uobj_map);
751	if (!ret)
752	{
753	src = ttm_kmap_obj_virtual(&uobj_map, &src_isiomem);
754	if (!src_isiomem)
755	{
756	uint32_t flags = VBOX_MOUSE_POINTER_VISIBLE
757	\| VBOX_MOUSE_POINTER_SHAPE
758	\| VBOX_MOUSE_POINTER_ALPHA;
759	copy_cursor_image(src, dst, width, height, mask_size);
760	rc = VBoxHGSMIUpdatePointerShape(&vbox->submit_info, flags,
761	vbox->cursor_hot_x,
762	vbox->cursor_hot_y,
763	width, height, dst,
764	data_size);
765	ret = -RTErrConvertToErrno(rc);
766	}
767	else
768	DRM_ERROR("src cursor bo should be in main memory\n");
769	ttm_bo_kunmap(&uobj_map);
770	}
771	else
772	vbox->cursor_data_size = 0;
773	vbox_bo_unreserve(bo);
774	}
775	drm_gem_object_unreference_unlocked(obj);
776	}
777	else
778	{
779	DRM_ERROR("Cannot find cursor object %x for crtc\n", handle);
780	ret = -ENOENT;
781	}
782	return ret;
783	}
784
785	static int vbox_cursor_move(struct drm_crtc *crtc,
786	int x, int y)
787	{
788	struct vbox_private *vbox = crtc->dev->dev_private;
789	uint32_t flags = VBOX_MOUSE_POINTER_VISIBLE
790	\| VBOX_MOUSE_POINTER_SHAPE
791	\| VBOX_MOUSE_POINTER_ALPHA;
792	uint32_t host_x, host_y;
793	uint32_t hot_x = 0;
794	uint32_t hot_y = 0;
795	int rc;
796
797	/* We compare these to unsigned later and don't need to handle negative. */
798	if (x + crtc->x < 0 \|\| y + crtc->y < 0 \|\| vbox->cursor_data_size == 0)
799	return 0;
800	rc = VBoxHGSMICursorPosition(&vbox->submit_info, true, x + crtc->x,
801	y + crtc->y, &host_x, &host_y);
802	/* Work around a bug after save and restore in 5.0.20 and earlier. */
803	if (RT_FAILURE(rc) \|\| (host_x == 0 && host_y == 0))
804	return -RTErrConvertToErrno(rc);
805	if (x + crtc->x < host_x)
806	hot_x = min(host_x - x - crtc->x, vbox->cursor_width);
807	if (y + crtc->y < host_y)
808	hot_y = min(host_y - y - crtc->y, vbox->cursor_height);
809	if (hot_x == vbox->cursor_hot_x && hot_y == vbox->cursor_hot_y)
810	return 0;
811	vbox->cursor_hot_x = hot_x;
812	vbox->cursor_hot_y = hot_y;
813	rc = VBoxHGSMIUpdatePointerShape(&vbox->submit_info, flags, hot_x, hot_y,
814	vbox->cursor_width, vbox->cursor_height,
815	vbox->cursor_data,
816	vbox->cursor_data_size);
817	return -RTErrConvertToErrno(rc);
818	}

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/VBox/Additions/linux/drm/vbox_mode.c@ 63554

Download in other formats: