1 /**************************************************************************
3 * Copyright © 2009-2015 VMware, Inc., Palo Alto, CA., USA
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
28 #include "vmwgfx_kms.h"
29 #include <drm/drm_plane_helper.h>
32 #define vmw_crtc_to_ldu(x) \
33 container_of(x, struct vmw_legacy_display_unit, base.crtc)
34 #define vmw_encoder_to_ldu(x) \
35 container_of(x, struct vmw_legacy_display_unit, base.encoder)
36 #define vmw_connector_to_ldu(x) \
37 container_of(x, struct vmw_legacy_display_unit, base.connector)
39 struct vmw_legacy_display {
40 struct list_head active;
43 unsigned last_num_active;
45 struct vmw_framebuffer *fb;
49 * Display unit using the legacy register interface.
51 struct vmw_legacy_display_unit {
52 struct vmw_display_unit base;
54 struct list_head active;
57 static void vmw_ldu_destroy(struct vmw_legacy_display_unit *ldu)
59 list_del_init(&ldu->active);
60 vmw_du_cleanup(&ldu->base);
66 * Legacy Display Unit CRTC functions
69 static void vmw_ldu_crtc_destroy(struct drm_crtc *crtc)
71 vmw_ldu_destroy(vmw_crtc_to_ldu(crtc));
74 static int vmw_ldu_commit_list(struct vmw_private *dev_priv)
76 struct vmw_legacy_display *lds = dev_priv->ldu_priv;
77 struct vmw_legacy_display_unit *entry;
78 struct vmw_display_unit *du = NULL;
79 struct drm_framebuffer *fb = NULL;
80 struct drm_crtc *crtc = NULL;
83 /* If there is no display topology the host just assumes
84 * that the guest will set the same layout as the host.
86 if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)) {
88 list_for_each_entry(entry, &lds->active, active) {
89 crtc = &entry->base.crtc;
90 w = max(w, crtc->x + crtc->mode.hdisplay);
91 h = max(h, crtc->y + crtc->mode.vdisplay);
97 fb = entry->base.crtc.primary->fb;
99 return vmw_kms_write_svga(dev_priv, w, h, fb->pitches[0],
100 fb->format->cpp[0] * 8,
104 if (!list_empty(&lds->active)) {
105 entry = list_entry(lds->active.next, typeof(*entry), active);
106 fb = entry->base.crtc.primary->fb;
108 vmw_kms_write_svga(dev_priv, fb->width, fb->height, fb->pitches[0],
109 fb->format->cpp[0] * 8, fb->format->depth);
112 /* Make sure we always show something. */
113 vmw_write(dev_priv, SVGA_REG_NUM_GUEST_DISPLAYS,
114 lds->num_active ? lds->num_active : 1);
117 list_for_each_entry(entry, &lds->active, active) {
118 crtc = &entry->base.crtc;
120 vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, i);
121 vmw_write(dev_priv, SVGA_REG_DISPLAY_IS_PRIMARY, !i);
122 vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_X, crtc->x);
123 vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_Y, crtc->y);
124 vmw_write(dev_priv, SVGA_REG_DISPLAY_WIDTH, crtc->mode.hdisplay);
125 vmw_write(dev_priv, SVGA_REG_DISPLAY_HEIGHT, crtc->mode.vdisplay);
126 vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
131 BUG_ON(i != lds->num_active);
133 lds->last_num_active = lds->num_active;
136 /* Find the first du with a cursor. */
137 list_for_each_entry(entry, &lds->active, active) {
140 if (!du->cursor_dmabuf)
143 ret = vmw_cursor_update_dmabuf(dev_priv,
151 DRM_ERROR("Could not update cursor image\n");
157 static int vmw_ldu_del_active(struct vmw_private *vmw_priv,
158 struct vmw_legacy_display_unit *ldu)
160 struct vmw_legacy_display *ld = vmw_priv->ldu_priv;
161 if (list_empty(&ldu->active))
164 /* Must init otherwise list_empty(&ldu->active) will not work. */
165 list_del_init(&ldu->active);
166 if (--(ld->num_active) == 0) {
169 ld->fb->unpin(ld->fb);
176 static int vmw_ldu_add_active(struct vmw_private *vmw_priv,
177 struct vmw_legacy_display_unit *ldu,
178 struct vmw_framebuffer *vfb)
180 struct vmw_legacy_display *ld = vmw_priv->ldu_priv;
181 struct vmw_legacy_display_unit *entry;
182 struct list_head *at;
184 BUG_ON(!ld->num_active && ld->fb);
186 if (ld->fb && ld->fb->unpin)
187 ld->fb->unpin(ld->fb);
193 if (!list_empty(&ldu->active))
197 list_for_each_entry(entry, &ld->active, active) {
198 if (entry->base.unit > ldu->base.unit)
204 list_add(&ldu->active, at);
211 static int vmw_ldu_crtc_set_config(struct drm_mode_set *set)
213 struct vmw_private *dev_priv;
214 struct vmw_legacy_display_unit *ldu;
215 struct drm_connector *connector;
216 struct drm_display_mode *mode;
217 struct drm_encoder *encoder;
218 struct vmw_framebuffer *vfb;
219 struct drm_framebuffer *fb;
220 struct drm_crtc *crtc;
230 ldu = vmw_crtc_to_ldu(crtc);
231 vfb = set->fb ? vmw_framebuffer_to_vfb(set->fb) : NULL;
232 dev_priv = vmw_priv(crtc->dev);
234 if (set->num_connectors > 1) {
235 DRM_ERROR("to many connectors\n");
239 if (set->num_connectors == 1 &&
240 set->connectors[0] != &ldu->base.connector) {
241 DRM_ERROR("connector doesn't match %p %p\n",
242 set->connectors[0], &ldu->base.connector);
246 /* ldu only supports one fb active at the time */
247 if (dev_priv->ldu_priv->fb && vfb &&
248 !(dev_priv->ldu_priv->num_active == 1 &&
249 !list_empty(&ldu->active)) &&
250 dev_priv->ldu_priv->fb != vfb) {
251 DRM_ERROR("Multiple framebuffers not supported\n");
255 /* since they always map one to one these are safe */
256 connector = &ldu->base.connector;
257 encoder = &ldu->base.encoder;
259 /* should we turn the crtc off? */
260 if (set->num_connectors == 0 || !set->mode || !set->fb) {
262 connector->encoder = NULL;
263 encoder->crtc = NULL;
264 crtc->primary->fb = NULL;
265 crtc->enabled = false;
267 vmw_ldu_del_active(dev_priv, ldu);
269 return vmw_ldu_commit_list(dev_priv);
273 /* we now know we want to set a mode */
277 if (set->x + mode->hdisplay > fb->width ||
278 set->y + mode->vdisplay > fb->height) {
279 DRM_ERROR("set outside of framebuffer\n");
283 vmw_svga_enable(dev_priv);
285 crtc->primary->fb = fb;
286 encoder->crtc = crtc;
287 connector->encoder = encoder;
291 crtc->enabled = true;
292 ldu->base.set_gui_x = set->x;
293 ldu->base.set_gui_y = set->y;
295 vmw_ldu_add_active(dev_priv, ldu, vfb);
297 return vmw_ldu_commit_list(dev_priv);
300 static const struct drm_crtc_funcs vmw_legacy_crtc_funcs = {
301 .cursor_set2 = vmw_du_crtc_cursor_set2,
302 .cursor_move = vmw_du_crtc_cursor_move,
303 .gamma_set = vmw_du_crtc_gamma_set,
304 .destroy = vmw_ldu_crtc_destroy,
305 .set_config = vmw_ldu_crtc_set_config,
310 * Legacy Display Unit encoder functions
313 static void vmw_ldu_encoder_destroy(struct drm_encoder *encoder)
315 vmw_ldu_destroy(vmw_encoder_to_ldu(encoder));
318 static const struct drm_encoder_funcs vmw_legacy_encoder_funcs = {
319 .destroy = vmw_ldu_encoder_destroy,
323 * Legacy Display Unit connector functions
326 static void vmw_ldu_connector_destroy(struct drm_connector *connector)
328 vmw_ldu_destroy(vmw_connector_to_ldu(connector));
331 static const struct drm_connector_funcs vmw_legacy_connector_funcs = {
332 .dpms = vmw_du_connector_dpms,
333 .detect = vmw_du_connector_detect,
334 .fill_modes = vmw_du_connector_fill_modes,
335 .set_property = vmw_du_connector_set_property,
336 .destroy = vmw_ldu_connector_destroy,
339 static int vmw_ldu_init(struct vmw_private *dev_priv, unsigned unit)
341 struct vmw_legacy_display_unit *ldu;
342 struct drm_device *dev = dev_priv->dev;
343 struct drm_connector *connector;
344 struct drm_encoder *encoder;
345 struct drm_crtc *crtc;
347 ldu = kzalloc(sizeof(*ldu), GFP_KERNEL);
351 ldu->base.unit = unit;
352 crtc = &ldu->base.crtc;
353 encoder = &ldu->base.encoder;
354 connector = &ldu->base.connector;
356 INIT_LIST_HEAD(&ldu->active);
358 ldu->base.pref_active = (unit == 0);
359 ldu->base.pref_width = dev_priv->initial_width;
360 ldu->base.pref_height = dev_priv->initial_height;
361 ldu->base.pref_mode = NULL;
362 ldu->base.is_implicit = true;
364 drm_connector_init(dev, connector, &vmw_legacy_connector_funcs,
365 DRM_MODE_CONNECTOR_VIRTUAL);
366 connector->status = vmw_du_connector_detect(connector, true);
368 drm_encoder_init(dev, encoder, &vmw_legacy_encoder_funcs,
369 DRM_MODE_ENCODER_VIRTUAL, NULL);
370 drm_mode_connector_attach_encoder(connector, encoder);
371 encoder->possible_crtcs = (1 << unit);
372 encoder->possible_clones = 0;
374 (void) drm_connector_register(connector);
376 drm_crtc_init(dev, crtc, &vmw_legacy_crtc_funcs);
378 drm_mode_crtc_set_gamma_size(crtc, 256);
380 drm_object_attach_property(&connector->base,
381 dev_priv->hotplug_mode_update_property, 1);
382 drm_object_attach_property(&connector->base,
383 dev->mode_config.suggested_x_property, 0);
384 drm_object_attach_property(&connector->base,
385 dev->mode_config.suggested_y_property, 0);
386 if (dev_priv->implicit_placement_property)
387 drm_object_attach_property
389 dev_priv->implicit_placement_property,
395 int vmw_kms_ldu_init_display(struct vmw_private *dev_priv)
397 struct drm_device *dev = dev_priv->dev;
400 if (dev_priv->ldu_priv) {
401 DRM_INFO("ldu system already on\n");
405 dev_priv->ldu_priv = kmalloc(sizeof(*dev_priv->ldu_priv), GFP_KERNEL);
406 if (!dev_priv->ldu_priv)
409 INIT_LIST_HEAD(&dev_priv->ldu_priv->active);
410 dev_priv->ldu_priv->num_active = 0;
411 dev_priv->ldu_priv->last_num_active = 0;
412 dev_priv->ldu_priv->fb = NULL;
414 /* for old hardware without multimon only enable one display */
415 if (dev_priv->capabilities & SVGA_CAP_MULTIMON)
416 ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS);
418 ret = drm_vblank_init(dev, 1);
422 vmw_kms_create_implicit_placement_property(dev_priv, true);
424 if (dev_priv->capabilities & SVGA_CAP_MULTIMON)
425 for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i)
426 vmw_ldu_init(dev_priv, i);
428 vmw_ldu_init(dev_priv, 0);
430 dev_priv->active_display_unit = vmw_du_legacy;
432 DRM_INFO("Legacy Display Unit initialized\n");
437 kfree(dev_priv->ldu_priv);
438 dev_priv->ldu_priv = NULL;
442 int vmw_kms_ldu_close_display(struct vmw_private *dev_priv)
444 struct drm_device *dev = dev_priv->dev;
446 if (!dev_priv->ldu_priv)
449 drm_vblank_cleanup(dev);
451 BUG_ON(!list_empty(&dev_priv->ldu_priv->active));
453 kfree(dev_priv->ldu_priv);
459 int vmw_kms_ldu_do_dmabuf_dirty(struct vmw_private *dev_priv,
460 struct vmw_framebuffer *framebuffer,
461 unsigned flags, unsigned color,
462 struct drm_clip_rect *clips,
463 unsigned num_clips, int increment)
470 SVGAFifoCmdUpdate body;
473 fifo_size = sizeof(*cmd) * num_clips;
474 cmd = vmw_fifo_reserve(dev_priv, fifo_size);
475 if (unlikely(cmd == NULL)) {
476 DRM_ERROR("Fifo reserve failed.\n");
480 memset(cmd, 0, fifo_size);
481 for (i = 0; i < num_clips; i++, clips += increment) {
482 cmd[i].header = SVGA_CMD_UPDATE;
483 cmd[i].body.x = clips->x1;
484 cmd[i].body.y = clips->y1;
485 cmd[i].body.width = clips->x2 - clips->x1;
486 cmd[i].body.height = clips->y2 - clips->y1;
489 vmw_fifo_commit(dev_priv, fifo_size);