2 * Copyright (c) 2006-2007 Intel Corporation
3 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
5 * DRM core CRTC related functions
7 * Permission to use, copy, modify, distribute, and sell this software and its
8 * documentation for any purpose is hereby granted without fee, provided that
9 * the above copyright notice appear in all copies and that both that copyright
10 * notice and this permission notice appear in supporting documentation, and
11 * that the name of the copyright holders not be used in advertising or
12 * publicity pertaining to distribution of the software without specific,
13 * written prior permission. The copyright holders make no representations
14 * about the suitability of this software for any purpose. It is provided "as
15 * is" without express or implied warranty.
17 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
18 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
19 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
20 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
21 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
22 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
27 * Eric Anholt <eric@anholt.net>
28 * Dave Airlie <airlied@linux.ie>
29 * Jesse Barnes <jesse.barnes@intel.com>
31 #include <linux/list.h>
36 struct drm_prop_enum_list {
44 static struct drm_prop_enum_list drm_dpms_enum_list[] =
45 { { DPMSModeOn, "On" },
46 { DPMSModeStandby, "Standby" },
47 { DPMSModeSuspend, "Suspend" },
48 { DPMSModeOff, "Off" }
50 static struct drm_prop_enum_list drm_conn_enum_list[] =
51 { { ConnectorUnknown, "Unknown" },
52 { ConnectorVGA, "VGA" },
53 { ConnectorDVII, "DVI-I" },
54 { ConnectorDVID, "DVI-D" },
55 { ConnectorDVIA, "DVI-A" },
56 { ConnectorComposite, "Composite" },
57 { ConnectorSVIDEO, "SVIDEO" },
58 { ConnectorLVDS, "LVDS" },
59 { ConnectorComponent, "Component" },
60 { Connector9PinDIN, "9-pin DIN" },
61 { ConnectorDisplayPort, "DisplayPort" },
62 { ConnectorHDMIA, "HDMI Type A" },
63 { ConnectorHDMIB, "HDMI Type B" },
65 static struct drm_prop_enum_list drm_output_enum_list[] =
66 { { DRM_MODE_OUTPUT_NONE, "None" },
67 { DRM_MODE_OUTPUT_DAC, "DAC" },
68 { DRM_MODE_OUTPUT_TMDS, "TMDS" },
69 { DRM_MODE_OUTPUT_LVDS, "LVDS" },
70 { DRM_MODE_OUTPUT_TVDAC, "TV" },
73 char *drm_get_output_name(struct drm_output *output)
77 snprintf(buf, 32, "%s-%d", drm_output_enum_list[output->output_type].name,
78 output->output_type_id);
83 * drm_idr_get - allocate a new identifier
85 * @ptr: object pointer, used to generate unique ID
88 * Caller must hold DRM mode_config lock.
90 * Create a unique identifier based on @ptr in @dev's identifier space. Used
91 * for tracking modes, CRTCs and outputs.
94 * New unique (relative to other objects in @dev) integer identifier for the
97 int drm_idr_get(struct drm_device *dev, void *ptr)
102 if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
103 DRM_ERROR("Ran out memory getting a mode number\n");
107 ret = idr_get_new_above(&dev->mode_config.crtc_idr, ptr, 1, &new_id);
115 * drm_idr_put - free an identifer
120 * Caller must hold DRM mode_config lock.
122 * Free @id from @dev's unique identifier pool.
124 void drm_idr_put(struct drm_device *dev, int id)
126 idr_remove(&dev->mode_config.crtc_idr, id);
130 * drm_crtc_from_fb - find the CRTC structure associated with an fb
132 * @fb: framebuffer in question
135 * Caller must hold mode_config lock.
137 * Find CRTC in the mode_config structure that matches @fb.
140 * Pointer to the CRTC or NULL if it wasn't found.
142 struct drm_crtc *drm_crtc_from_fb(struct drm_device *dev,
143 struct drm_framebuffer *fb)
145 struct drm_crtc *crtc;
147 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
155 * drm_framebuffer_create - create a new framebuffer object
159 * Caller must hold mode config lock.
161 * Creates a new framebuffer objects and adds it to @dev's DRM mode_config.
164 * Pointer to new framebuffer or NULL on error.
166 struct drm_framebuffer *drm_framebuffer_create(struct drm_device *dev)
168 struct drm_framebuffer *fb;
170 fb = kzalloc(sizeof(struct drm_framebuffer), GFP_KERNEL);
174 fb->id = drm_idr_get(dev, fb);
176 dev->mode_config.num_fb++;
177 list_add(&fb->head, &dev->mode_config.fb_list);
181 EXPORT_SYMBOL(drm_framebuffer_create);
184 * drm_framebuffer_destroy - remove a framebuffer object
185 * @fb: framebuffer to remove
188 * Caller must hold mode config lock.
190 * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes
191 * it, setting it to NULL.
193 void drm_framebuffer_destroy(struct drm_framebuffer *fb)
195 struct drm_device *dev = fb->dev;
196 struct drm_crtc *crtc;
198 /* remove from any CRTC */
199 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
204 drm_idr_put(dev, fb->id);
206 dev->mode_config.num_fb--;
210 EXPORT_SYMBOL(drm_framebuffer_destroy);
213 * drm_crtc_create - create a new CRTC object
215 * @funcs: callbacks for the new CRTC
218 * Caller must hold mode config lock.
220 * Creates a new CRTC object and adds it to @dev's mode_config structure.
223 * Pointer to new CRTC object or NULL on error.
225 struct drm_crtc *drm_crtc_create(struct drm_device *dev,
226 const struct drm_crtc_funcs *funcs)
228 struct drm_crtc *crtc;
230 crtc = kzalloc(sizeof(struct drm_crtc), GFP_KERNEL);
237 crtc->id = drm_idr_get(dev, crtc);
239 list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
240 dev->mode_config.num_crtc++;
244 EXPORT_SYMBOL(drm_crtc_create);
247 * drm_crtc_destroy - remove a CRTC object
248 * @crtc: CRTC to remove
251 * Caller must hold mode config lock.
253 * Cleanup @crtc. Calls @crtc's cleanup function, then removes @crtc from
254 * its associated DRM device's mode_config. Frees it afterwards.
256 void drm_crtc_destroy(struct drm_crtc *crtc)
258 struct drm_device *dev = crtc->dev;
260 if (crtc->funcs->cleanup)
261 (*crtc->funcs->cleanup)(crtc);
263 drm_idr_put(dev, crtc->id);
264 list_del(&crtc->head);
265 dev->mode_config.num_crtc--;
268 EXPORT_SYMBOL(drm_crtc_destroy);
271 * drm_crtc_in_use - check if a given CRTC is in a mode_config
272 * @crtc: CRTC to check
275 * Caller must hold mode config lock.
277 * Walk @crtc's DRM device's mode_config and see if it's in use.
280 * True if @crtc is part of the mode_config, false otherwise.
282 bool drm_crtc_in_use(struct drm_crtc *crtc)
284 struct drm_output *output;
285 struct drm_device *dev = crtc->dev;
286 /* FIXME: Locking around list access? */
287 list_for_each_entry(output, &dev->mode_config.output_list, head)
288 if (output->crtc == crtc)
292 EXPORT_SYMBOL(drm_crtc_in_use);
295 * Detailed mode info for a standard 640x480@60Hz monitor
297 static struct drm_display_mode std_mode[] = {
298 { DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 25200, 640, 656,
299 752, 800, 0, 480, 490, 492, 525, 0,
300 V_NHSYNC | V_NVSYNC) }, /* 640x480@60Hz */
304 * drm_crtc_probe_output_modes - get complete set of display modes
306 * @maxX: max width for modes
307 * @maxY: max height for modes
310 * Caller must hold mode config lock.
312 * Based on @dev's mode_config layout, scan all the outputs and try to detect
313 * modes on them. Modes will first be added to the output's probed_modes
314 * list, then culled (based on validity and the @maxX, @maxY parameters) and
315 * put into the normal modes list.
317 * Intended to be used either at bootup time or when major configuration
318 * changes have occurred.
320 * FIXME: take into account monitor limits
322 void drm_crtc_probe_single_output_modes(struct drm_output *output, int maxX, int maxY)
324 struct drm_device *dev = output->dev;
325 struct drm_display_mode *mode, *t;
327 //if (maxX == 0 || maxY == 0)
330 /* set all modes to the unverified state */
331 list_for_each_entry_safe(mode, t, &output->modes, head)
332 mode->status = MODE_UNVERIFIED;
334 output->status = (*output->funcs->detect)(output);
336 if (output->status == output_status_disconnected) {
337 DRM_DEBUG("%s is disconnected\n", drm_get_output_name(output));
338 /* TODO set EDID to NULL */
342 ret = (*output->funcs->get_modes)(output);
345 drm_mode_output_list_update(output);
349 drm_mode_validate_size(dev, &output->modes, maxX,
351 list_for_each_entry_safe(mode, t, &output->modes, head) {
352 if (mode->status == MODE_OK)
353 mode->status = (*output->funcs->mode_valid)(output,mode);
357 drm_mode_prune_invalid(dev, &output->modes, TRUE);
359 if (list_empty(&output->modes)) {
360 struct drm_display_mode *stdmode;
362 DRM_DEBUG("No valid modes on %s\n", drm_get_output_name(output));
364 /* Should we do this here ???
365 * When no valid EDID modes are available we end up
366 * here and bailed in the past, now we add a standard
367 * 640x480@60Hz mode and carry on.
369 stdmode = drm_mode_duplicate(dev, &std_mode[0]);
370 drm_mode_probed_add(output, stdmode);
371 drm_mode_list_concat(&output->probed_modes,
374 DRM_DEBUG("Adding standard 640x480 @ 60Hz to %s\n",
375 drm_get_output_name(output));
378 drm_mode_sort(&output->modes);
380 DRM_DEBUG("Probed modes for %s\n", drm_get_output_name(output));
381 list_for_each_entry_safe(mode, t, &output->modes, head) {
382 mode->vrefresh = drm_mode_vrefresh(mode);
384 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
385 drm_mode_debug_printmodeline(dev, mode);
389 void drm_crtc_probe_output_modes(struct drm_device *dev, int maxX, int maxY)
391 struct drm_output *output;
393 list_for_each_entry(output, &dev->mode_config.output_list, head) {
394 drm_crtc_probe_single_output_modes(output, maxX, maxY);
397 EXPORT_SYMBOL(drm_crtc_probe_output_modes);
400 * drm_crtc_set_mode - set a mode
401 * @crtc: CRTC to program
407 * Caller must hold mode config lock.
409 * Try to set @mode on @crtc. Give @crtc and its associated outputs a chance
410 * to fixup or reject the mode prior to trying to set it.
413 * True if the mode was set successfully, or false otherwise.
415 bool drm_crtc_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode,
418 struct drm_device *dev = crtc->dev;
419 struct drm_display_mode *adjusted_mode, saved_mode;
420 int saved_x, saved_y;
421 bool didLock = false;
422 struct drm_output *output;
425 adjusted_mode = drm_mode_duplicate(dev, mode);
427 crtc->enabled = drm_crtc_in_use(crtc);
432 didLock = crtc->funcs->lock(crtc);
434 saved_mode = crtc->mode;
438 /* Update crtc values up front so the driver can rely on them for mode
445 if (drm_mode_equal(&saved_mode, &crtc->mode)) {
446 if (saved_x != crtc->x || saved_y != crtc->y) {
447 crtc->funcs->mode_set_base(crtc, crtc->x, crtc->y);
452 /* Pass our mode to the outputs and the CRTC to give them a chance to
453 * adjust it according to limitations or output properties, and also
454 * a chance to reject the mode entirely.
456 list_for_each_entry(output, &dev->mode_config.output_list, head) {
458 if (output->crtc != crtc)
461 if (!(ret = output->funcs->mode_fixup(output, mode, adjusted_mode))) {
466 if (!(ret = crtc->funcs->mode_fixup(crtc, mode, adjusted_mode))) {
470 /* Prepare the outputs and CRTCs before setting the mode. */
471 list_for_each_entry(output, &dev->mode_config.output_list, head) {
473 if (output->crtc != crtc)
476 /* Disable the output as the first thing we do. */
477 output->funcs->prepare(output);
480 crtc->funcs->prepare(crtc);
482 /* Set up the DPLL and any output state that needs to adjust or depend
485 crtc->funcs->mode_set(crtc, mode, adjusted_mode, x, y);
487 list_for_each_entry(output, &dev->mode_config.output_list, head) {
489 if (output->crtc != crtc)
492 DRM_INFO("%s: set mode %s %x\n", drm_get_output_name(output), mode->name, mode->mode_id);
494 output->funcs->mode_set(output, mode, adjusted_mode);
497 /* Now, enable the clocks, plane, pipe, and outputs that we set up. */
498 crtc->funcs->commit(crtc);
500 list_for_each_entry(output, &dev->mode_config.output_list, head) {
502 if (output->crtc != crtc)
505 output->funcs->commit(output);
507 #if 0 // TODO def RANDR_12_INTERFACE
508 if (output->randr_output)
509 RRPostPendingProperties (output->randr_output);
513 /* XXX free adjustedmode */
514 drm_mode_destroy(dev, adjusted_mode);
516 // if (scrn->pScreen)
517 // drm_crtc_set_screen_sub_pixel_order(dev);
521 crtc->mode = saved_mode;
527 crtc->funcs->unlock (crtc);
531 EXPORT_SYMBOL(drm_crtc_set_mode);
534 * drm_disable_unused_functions - disable unused objects
538 * Caller must hold mode config lock.
540 * If an output or CRTC isn't part of @dev's mode_config, it can be disabled
541 * by calling its dpms function, which should power it off.
543 void drm_disable_unused_functions(struct drm_device *dev)
545 struct drm_output *output;
546 struct drm_crtc *crtc;
548 list_for_each_entry(output, &dev->mode_config.output_list, head) {
550 (*output->funcs->dpms)(output, DPMSModeOff);
553 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
555 crtc->funcs->dpms(crtc, DPMSModeOff);
558 EXPORT_SYMBOL(drm_disable_unused_functions);
561 * drm_mode_probed_add - add a mode to the specified output's probed mode list
562 * @output: output the new mode
566 * Caller must hold mode config lock.
568 * Add @mode to @output's mode list for later use.
570 void drm_mode_probed_add(struct drm_output *output,
571 struct drm_display_mode *mode)
573 list_add(&mode->head, &output->probed_modes);
575 EXPORT_SYMBOL(drm_mode_probed_add);
578 * drm_mode_remove - remove and free a mode
579 * @output: output list to modify
580 * @mode: mode to remove
583 * Caller must hold mode config lock.
585 * Remove @mode from @output's mode list, then free it.
587 void drm_mode_remove(struct drm_output *output, struct drm_display_mode *mode)
589 list_del(&mode->head);
592 EXPORT_SYMBOL(drm_mode_remove);
595 * drm_output_create - create a new output
597 * @funcs: callbacks for this output
598 * @name: user visible name of the output
601 * Caller must hold @dev's mode_config lock.
603 * Creates a new drm_output structure and adds it to @dev's mode_config
607 * Pointer to the new output or NULL on error.
609 struct drm_output *drm_output_create(struct drm_device *dev,
610 const struct drm_output_funcs *funcs,
613 struct drm_output *output = NULL;
615 output = kzalloc(sizeof(struct drm_output), GFP_KERNEL);
620 output->funcs = funcs;
621 output->id = drm_idr_get(dev, output);
622 output->output_type = output_type;
623 output->output_type_id = 1; /* TODO */
624 output->subpixel_order = SubPixelUnknown;
625 INIT_LIST_HEAD(&output->user_modes);
626 INIT_LIST_HEAD(&output->probed_modes);
627 INIT_LIST_HEAD(&output->modes);
629 /* output_set_monitor(output)? */
630 /* check for output_ignored(output)? */
632 mutex_lock(&dev->mode_config.mutex);
633 list_add_tail(&output->head, &dev->mode_config.output_list);
634 dev->mode_config.num_output++;
636 drm_output_attach_property(output, dev->mode_config.edid_property, 0);
638 drm_output_attach_property(output, dev->mode_config.dpms_property, 0);
640 mutex_unlock(&dev->mode_config.mutex);
645 EXPORT_SYMBOL(drm_output_create);
648 * drm_output_destroy - remove an output
649 * @output: output to remove
652 * Caller must hold @dev's mode_config lock.
654 * Call @output's cleanup function, then remove the output from the DRM
655 * mode_config after freeing @output's modes.
657 void drm_output_destroy(struct drm_output *output)
659 struct drm_device *dev = output->dev;
660 struct drm_display_mode *mode, *t;
662 if (*output->funcs->cleanup)
663 (*output->funcs->cleanup)(output);
665 list_for_each_entry_safe(mode, t, &output->probed_modes, head)
666 drm_mode_remove(output, mode);
668 list_for_each_entry_safe(mode, t, &output->modes, head)
669 drm_mode_remove(output, mode);
671 list_for_each_entry_safe(mode, t, &output->user_modes, head)
672 drm_mode_remove(output, mode);
674 mutex_lock(&dev->mode_config.mutex);
675 drm_idr_put(dev, output->id);
676 list_del(&output->head);
677 mutex_unlock(&dev->mode_config.mutex);
680 EXPORT_SYMBOL(drm_output_destroy);
684 * drm_mode_create - create a new display mode
690 * Create a new drm_display_mode, give it an ID, and return it.
693 * Pointer to new mode on success, NULL on error.
695 struct drm_display_mode *drm_mode_create(struct drm_device *dev)
697 struct drm_display_mode *nmode;
699 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
703 nmode->mode_id = drm_idr_get(dev, nmode);
706 EXPORT_SYMBOL(drm_mode_create);
709 * drm_mode_destroy - remove a mode
711 * @mode: mode to remove
714 * Caller must hold mode config lock.
716 * Free @mode's unique identifier, then free it.
718 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
720 drm_idr_put(dev, mode->mode_id);
724 EXPORT_SYMBOL(drm_mode_destroy);
726 static int drm_mode_create_standard_output_properties(struct drm_device *dev)
731 * Standard properties (apply to all outputs)
733 dev->mode_config.edid_property =
734 drm_property_create(dev, DRM_MODE_PROP_BLOB | DRM_MODE_PROP_IMMUTABLE,
737 dev->mode_config.dpms_property =
738 drm_property_create(dev, DRM_MODE_PROP_ENUM,
739 "DPMS", ARRAY_SIZE(drm_dpms_enum_list));
740 for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
741 drm_property_add_enum(dev->mode_config.dpms_property, i, drm_dpms_enum_list[i].type, drm_dpms_enum_list[i].name);
743 dev->mode_config.connector_type_property =
744 drm_property_create(dev, DRM_MODE_PROP_ENUM | DRM_MODE_PROP_IMMUTABLE,
745 "Connector Type", ARRAY_SIZE(drm_conn_enum_list));
746 for (i = 0; i < ARRAY_SIZE(drm_conn_enum_list); i++)
747 drm_property_add_enum(dev->mode_config.connector_type_property, i, drm_conn_enum_list[i].type, drm_conn_enum_list[i].name);
749 dev->mode_config.connector_num_property =
750 drm_property_create(dev, DRM_MODE_PROP_RANGE | DRM_MODE_PROP_IMMUTABLE,
752 dev->mode_config.connector_num_property->values[0] = 0;
753 dev->mode_config.connector_num_property->values[1] = 20;
756 * TV specific properties
758 dev->mode_config.tv_left_margin_property =
759 drm_property_create(dev, DRM_MODE_PROP_RANGE |
760 DRM_MODE_PROP_IMMUTABLE,
762 dev->mode_config.tv_left_margin_property->values[0] = 0;
763 dev->mode_config.tv_left_margin_property->values[1] = 100;
765 dev->mode_config.tv_right_margin_property =
766 drm_property_create(dev, DRM_MODE_PROP_RANGE |
767 DRM_MODE_PROP_IMMUTABLE,
769 dev->mode_config.tv_right_margin_property->values[0] = 0;
770 dev->mode_config.tv_right_margin_property->values[1] = 100;
772 dev->mode_config.tv_top_margin_property =
773 drm_property_create(dev, DRM_MODE_PROP_RANGE |
774 DRM_MODE_PROP_IMMUTABLE,
776 dev->mode_config.tv_top_margin_property->values[0] = 0;
777 dev->mode_config.tv_top_margin_property->values[1] = 100;
779 dev->mode_config.tv_bottom_margin_property =
780 drm_property_create(dev, DRM_MODE_PROP_RANGE |
781 DRM_MODE_PROP_IMMUTABLE,
783 dev->mode_config.tv_bottom_margin_property->values[0] = 0;
784 dev->mode_config.tv_bottom_margin_property->values[1] = 100;
790 * drm_mode_config_init - initialize DRM mode_configuration structure
794 * None, should happen single threaded at init time.
796 * Initialize @dev's mode_config structure, used for tracking the graphics
797 * configuration of @dev.
799 void drm_mode_config_init(struct drm_device *dev)
801 mutex_init(&dev->mode_config.mutex);
802 INIT_LIST_HEAD(&dev->mode_config.fb_list);
803 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
804 INIT_LIST_HEAD(&dev->mode_config.output_list);
805 INIT_LIST_HEAD(&dev->mode_config.property_list);
806 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
807 idr_init(&dev->mode_config.crtc_idr);
809 drm_mode_create_standard_output_properties(dev);
811 /* Just to be sure */
812 dev->mode_config.num_fb = 0;
813 dev->mode_config.num_output = 0;
814 dev->mode_config.num_crtc = 0;
815 dev->mode_config.hotplug_counter = 0;
817 EXPORT_SYMBOL(drm_mode_config_init);
820 * drm_get_buffer_object - find the buffer object for a given handle
822 * @bo: pointer to caller's buffer_object pointer
823 * @handle: handle to lookup
826 * Must take @dev's struct_mutex to protect buffer object lookup.
828 * Given @handle, lookup the buffer object in @dev and put it in the caller's
832 * Zero on success, -EINVAL if the handle couldn't be found.
834 static int drm_get_buffer_object(struct drm_device *dev, struct drm_buffer_object **bo, unsigned long handle)
836 struct drm_user_object *uo;
837 struct drm_hash_item *hash;
842 mutex_lock(&dev->struct_mutex);
843 ret = drm_ht_find_item(&dev->object_hash, handle, &hash);
845 DRM_ERROR("Couldn't find handle.\n");
850 uo = drm_hash_entry(hash, struct drm_user_object, hash);
851 if (uo->type != drm_buffer_type) {
856 *bo = drm_user_object_entry(uo, struct drm_buffer_object, base);
859 mutex_unlock(&dev->struct_mutex);
864 * drm_pick_crtcs - pick crtcs for output devices
868 * Caller must hold mode config lock.
870 static void drm_pick_crtcs (struct drm_device *dev)
873 struct drm_output *output, *output_equal;
874 struct drm_crtc *crtc;
875 struct drm_display_mode *des_mode = NULL, *modes, *modes_equal;
878 list_for_each_entry(output, &dev->mode_config.output_list, head) {
881 /* Don't hook up outputs that are disconnected ??
883 * This is debateable. Do we want fixed /dev/fbX or
884 * dynamic on hotplug (need mode code for that though) ?
886 * If we don't hook up outputs now, then we only create
887 * /dev/fbX for the output that's enabled, that's good as
888 * the users console will be on that output.
890 * If we do hook up outputs that are disconnected now, then
891 * the user may end up having to muck about with the fbcon
892 * map flags to assign his console to the enabled output. Ugh.
894 if (output->status != output_status_connected)
897 if (list_empty(&output->modes))
902 list_for_each_entry(des_mode, &output->modes, head) {
903 if (des_mode->type & DRM_MODE_TYPE_PREFERRED) {
909 /* No preferred mode, let's just select the first available */
912 list_for_each_entry(des_mode, &output->modes, head) {
918 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
922 if ((output->possible_crtcs & (1 << c)) == 0)
925 list_for_each_entry(output_equal, &dev->mode_config.output_list, head) {
926 if (output->id == output_equal->id)
929 /* Find out if crtc has been assigned before */
930 if (output_equal->crtc == crtc)
934 #if 1 /* continue for now */
940 list_for_each_entry(output_equal, &dev->mode_config.output_list, head) {
942 if (output->id == output_equal->id)
945 list_for_each_entry(modes, &output->modes, head) {
946 list_for_each_entry(modes_equal, &output_equal->modes, head) {
947 if (drm_mode_equal (modes, modes_equal)) {
948 if ((output->possible_clones & output_equal->possible_clones) && (output_equal->crtc == crtc)) {
949 printk("Cloning %s (0x%lx) to %s (0x%lx)\n",drm_get_output_name(output),output->possible_clones,drm_get_output_name(output_equal),output_equal->possible_clones);
959 /* crtc has been assigned skip it */
963 /* Found a CRTC to attach to, do it ! */
965 output->crtc->desired_mode = des_mode;
966 output->initial_x = 0;
967 output->initial_y = 0;
968 DRM_DEBUG("Desired mode for CRTC %d is 0x%x:%s\n",c,des_mode->mode_id, des_mode->name);
973 EXPORT_SYMBOL(drm_pick_crtcs);
976 * drm_initial_config - setup a sane initial output configuration
978 * @can_grow: this configuration is growable
981 * Called at init time, must take mode config lock.
983 * Scan the CRTCs and outputs and try to put together an initial setup.
984 * At the moment, this is a cloned configuration across all heads with
985 * a new framebuffer object as the backing store.
988 * Zero if everything went ok, nonzero otherwise.
990 bool drm_initial_config(struct drm_device *dev, bool can_grow)
992 struct drm_output *output;
993 struct drm_crtc *crtc;
996 mutex_lock(&dev->mode_config.mutex);
998 drm_crtc_probe_output_modes(dev, 2048, 2048);
1000 drm_pick_crtcs(dev);
1002 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1004 /* can't setup the crtc if there's no assigned mode */
1005 if (!crtc->desired_mode)
1008 /* Now setup the fbdev for attached crtcs */
1009 dev->driver->fb_probe(dev, crtc);
1012 /* This is a little screwy, as we've already walked the outputs
1013 * above, but it's a little bit of magic too. There's the potential
1014 * for things not to get setup above if an existing device gets
1015 * re-assigned thus confusing the hardware. By walking the outputs
1016 * this fixes up their crtc's.
1018 list_for_each_entry(output, &dev->mode_config.output_list, head) {
1020 /* can't setup the output if there's no assigned mode */
1021 if (!output->crtc || !output->crtc->desired_mode)
1024 /* and needs an attached fb */
1025 if (output->crtc->fb)
1026 drm_crtc_set_mode(output->crtc, output->crtc->desired_mode, 0, 0);
1029 drm_disable_unused_functions(dev);
1031 mutex_unlock(&dev->mode_config.mutex);
1034 EXPORT_SYMBOL(drm_initial_config);
1037 * drm_mode_config_cleanup - free up DRM mode_config info
1041 * Caller must hold mode config lock.
1043 * Free up all the outputs and CRTCs associated with this DRM device, then
1044 * free up the framebuffers and associated buffer objects.
1046 * FIXME: cleanup any dangling user buffer objects too
1048 void drm_mode_config_cleanup(struct drm_device *dev)
1050 struct drm_output *output, *ot;
1051 struct drm_crtc *crtc, *ct;
1052 struct drm_framebuffer *fb, *fbt;
1053 struct drm_property *property, *pt;
1055 list_for_each_entry_safe(output, ot, &dev->mode_config.output_list, head) {
1056 drm_output_destroy(output);
1059 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, head) {
1060 drm_property_destroy(dev, property);
1063 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
1064 /* there should only be bo of kernel type left */
1065 if (fb->bo->type != drm_bo_type_kernel)
1066 drm_framebuffer_destroy(fb);
1068 dev->driver->fb_remove(dev, drm_crtc_from_fb(dev, fb));
1071 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
1072 drm_crtc_destroy(crtc);
1076 EXPORT_SYMBOL(drm_mode_config_cleanup);
1079 * drm_crtc_set_config - set a new config from userspace
1080 * @crtc: CRTC to setup
1081 * @crtc_info: user provided configuration
1082 * @new_mode: new mode to set
1083 * @output_set: set of outputs for the new config
1084 * @fb: new framebuffer
1087 * Caller must hold mode config lock.
1089 * Setup a new configuration, provided by the user in @crtc_info, and enable
1095 int drm_crtc_set_config(struct drm_crtc *crtc, struct drm_mode_crtc *crtc_info, struct drm_display_mode *new_mode, struct drm_output **output_set, struct drm_framebuffer *fb)
1097 struct drm_device *dev = crtc->dev;
1098 struct drm_crtc **save_crtcs, *new_crtc;
1099 bool save_enabled = crtc->enabled;
1100 bool changed = false;
1101 bool flip_or_move = false;
1102 struct drm_output *output;
1105 /* this is meant to be num_output not num_crtc */
1106 save_crtcs = kzalloc(dev->mode_config.num_output * sizeof(struct drm_crtc *), GFP_KERNEL);
1110 /* We should be able to check here if the fb has the same properties
1111 * and then just flip_or_move it */
1115 if (crtc_info->x != crtc->x || crtc_info->y != crtc->y)
1116 flip_or_move = true;
1118 if (new_mode && !drm_mode_equal(new_mode, &crtc->mode))
1121 list_for_each_entry(output, &dev->mode_config.output_list, head) {
1122 save_crtcs[count++] = output->crtc;
1124 if (output->crtc == crtc)
1127 new_crtc = output->crtc;
1129 for (ro = 0; ro < crtc_info->count_outputs; ro++) {
1130 if (output_set[ro] == output)
1133 if (new_crtc != output->crtc) {
1135 output->crtc = new_crtc;
1139 /* mode_set_base is not a required function */
1140 if (flip_or_move && !crtc->funcs->mode_set_base)
1145 crtc->enabled = (new_mode != NULL);
1146 if (new_mode != NULL) {
1147 DRM_DEBUG("attempting to set mode from userspace\n");
1148 drm_mode_debug_printmodeline(dev, new_mode);
1149 if (!drm_crtc_set_mode(crtc, new_mode, crtc_info->x,
1151 crtc->enabled = save_enabled;
1153 list_for_each_entry(output, &dev->mode_config.output_list, head)
1154 output->crtc = save_crtcs[count++];
1158 crtc->desired_x = crtc_info->x;
1159 crtc->desired_y = crtc_info->y;
1160 crtc->desired_mode = new_mode;
1162 drm_disable_unused_functions(dev);
1163 } else if (flip_or_move) {
1164 crtc->funcs->mode_set_base(crtc, crtc_info->x, crtc_info->y);
1172 * drm_hotplug_stage_two
1174 * @output hotpluged output
1177 * Caller must hold mode config lock, function might grap struct lock.
1179 * Stage two of a hotplug.
1182 * Zero on success, errno on failure.
1184 int drm_hotplug_stage_two(struct drm_device *dev, struct drm_output *output,
1189 /* We might want to do something more here */
1191 DRM_DEBUG("not connected\n");
1192 dev->mode_config.hotplug_counter++;
1196 if (output->crtc && output->crtc->desired_mode) {
1197 DRM_DEBUG("drm thinks that the output already has a config\n");
1201 drm_crtc_probe_output_modes(dev, 2048, 2048);
1204 drm_pick_crtcs(dev);
1206 if (!output->crtc || !output->crtc->desired_mode) {
1207 DRM_DEBUG("could not find a desired mode or crtc for output\n");
1211 /* We should realy check if there is a fb using this crtc */
1213 dev->driver->fb_probe(dev, output->crtc);
1215 dev->driver->fb_resize(dev, output->crtc);
1217 if (!drm_crtc_set_mode(output->crtc, output->crtc->desired_mode, 0, 0))
1218 DRM_ERROR("failed to set mode after hotplug\n");
1221 drm_disable_unused_functions(dev);
1223 dev->mode_config.hotplug_counter++;
1227 dev->mode_config.hotplug_counter++;
1230 EXPORT_SYMBOL(drm_hotplug_stage_two);
1232 int drm_mode_hotplug_ioctl(struct drm_device *dev,
1233 void *data, struct drm_file *file_priv)
1235 struct drm_mode_hotplug *arg = data;
1237 arg->counter = dev->mode_config.hotplug_counter;
1243 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1244 * @out: drm_mode_modeinfo struct to return to the user
1245 * @in: drm_display_mode to use
1250 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1253 void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, struct drm_display_mode *in)
1255 out->clock = in->clock;
1256 out->hdisplay = in->hdisplay;
1257 out->hsync_start = in->hsync_start;
1258 out->hsync_end = in->hsync_end;
1259 out->htotal = in->htotal;
1260 out->hskew = in->hskew;
1261 out->vdisplay = in->vdisplay;
1262 out->vsync_start = in->vsync_start;
1263 out->vsync_end = in->vsync_end;
1264 out->vtotal = in->vtotal;
1265 out->vscan = in->vscan;
1266 out->vrefresh = in->vrefresh;
1267 out->flags = in->flags;
1268 out->type = in->type;
1269 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1270 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1274 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1275 * @out: drm_display_mode to return to the user
1276 * @in: drm_mode_modeinfo to use
1281 * Convert a drmo_mode_modeinfo into a drm_display_mode structure to return to
1284 void drm_crtc_convert_umode(struct drm_display_mode *out, struct drm_mode_modeinfo *in)
1286 out->clock = in->clock;
1287 out->hdisplay = in->hdisplay;
1288 out->hsync_start = in->hsync_start;
1289 out->hsync_end = in->hsync_end;
1290 out->htotal = in->htotal;
1291 out->hskew = in->hskew;
1292 out->vdisplay = in->vdisplay;
1293 out->vsync_start = in->vsync_start;
1294 out->vsync_end = in->vsync_end;
1295 out->vtotal = in->vtotal;
1296 out->vscan = in->vscan;
1297 out->vrefresh = in->vrefresh;
1298 out->flags = in->flags;
1299 out->type = in->type;
1300 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1301 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1305 * drm_mode_getresources - get graphics configuration
1306 * @inode: inode from the ioctl
1307 * @filp: file * from the ioctl
1308 * @cmd: cmd from ioctl
1309 * @arg: arg from ioctl
1312 * Takes mode config lock.
1314 * Construct a set of configuration description structures and return
1315 * them to the user, including CRTC, output and framebuffer configuration.
1317 * Called by the user via ioctl.
1320 * Zero on success, errno on failure.
1322 int drm_mode_getresources(struct drm_device *dev,
1323 void *data, struct drm_file *file_priv)
1325 struct drm_mode_card_res *card_res = data;
1326 struct list_head *lh;
1327 struct drm_framebuffer *fb;
1328 struct drm_output *output;
1329 struct drm_crtc *crtc;
1331 int output_count = 0;
1335 uint32_t __user *fb_id;
1336 uint32_t __user *crtc_id;
1337 uint32_t __user *output_id;
1339 mutex_lock(&dev->mode_config.mutex);
1341 list_for_each(lh, &dev->mode_config.fb_list)
1344 list_for_each(lh, &dev->mode_config.crtc_list)
1347 list_for_each(lh, &dev->mode_config.output_list)
1350 card_res->max_height = dev->mode_config.max_height;
1351 card_res->min_height = dev->mode_config.min_height;
1352 card_res->max_width = dev->mode_config.max_width;
1353 card_res->min_width = dev->mode_config.min_width;
1355 /* handle this in 4 parts */
1357 if (card_res->count_fbs >= fb_count) {
1359 fb_id = (uint32_t *)(unsigned long)card_res->fb_id_ptr;
1360 list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
1361 if (put_user(fb->id, fb_id + copied)) {
1368 card_res->count_fbs = fb_count;
1371 if (card_res->count_crtcs >= crtc_count) {
1373 crtc_id = (uint32_t *)(unsigned long)card_res->crtc_id_ptr;
1374 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head){
1375 DRM_DEBUG("CRTC ID is %d\n", crtc->id);
1376 if (put_user(crtc->id, crtc_id + copied)) {
1383 card_res->count_crtcs = crtc_count;
1387 if (card_res->count_outputs >= output_count) {
1389 output_id = (uint32_t *)(unsigned long)card_res->output_id_ptr;
1390 list_for_each_entry(output, &dev->mode_config.output_list,
1392 DRM_DEBUG("OUTPUT ID is %d\n", output->id);
1393 if (put_user(output->id, output_id + copied)) {
1400 card_res->count_outputs = output_count;
1402 DRM_DEBUG("Counted %d %d\n", card_res->count_crtcs,
1403 card_res->count_outputs);
1406 mutex_unlock(&dev->mode_config.mutex);
1411 * drm_mode_getcrtc - get CRTC configuration
1412 * @inode: inode from the ioctl
1413 * @filp: file * from the ioctl
1414 * @cmd: cmd from ioctl
1415 * @arg: arg from ioctl
1420 * Construct a CRTC configuration structure to return to the user.
1422 * Called by the user via ioctl.
1425 * Zero on success, errno on failure.
1427 int drm_mode_getcrtc(struct drm_device *dev,
1428 void *data, struct drm_file *file_priv)
1430 struct drm_mode_crtc *crtc_resp = data;
1431 struct drm_crtc *crtc;
1432 struct drm_output *output;
1436 mutex_lock(&dev->mode_config.mutex);
1437 crtc = idr_find(&dev->mode_config.crtc_idr, crtc_resp->crtc_id);
1438 if (!crtc || (crtc->id != crtc_resp->crtc_id)) {
1443 crtc_resp->x = crtc->x;
1444 crtc_resp->y = crtc->y;
1447 crtc_resp->fb_id = crtc->fb->id;
1449 crtc_resp->fb_id = 0;
1451 crtc_resp->outputs = 0;
1452 if (crtc->enabled) {
1454 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1455 crtc_resp->mode_valid = 1;
1457 list_for_each_entry(output, &dev->mode_config.output_list, head) {
1458 if (output->crtc == crtc)
1459 crtc_resp->outputs |= 1 << (ocount++);
1463 crtc_resp->mode_valid = 0;
1467 mutex_unlock(&dev->mode_config.mutex);
1472 * drm_mode_getoutput - get output configuration
1473 * @inode: inode from the ioctl
1474 * @filp: file * from the ioctl
1475 * @cmd: cmd from ioctl
1476 * @arg: arg from ioctl
1481 * Construct a output configuration structure to return to the user.
1483 * Called by the user via ioctl.
1486 * Zero on success, errno on failure.
1488 int drm_mode_getoutput(struct drm_device *dev,
1489 void *data, struct drm_file *file_priv)
1491 struct drm_mode_get_output *out_resp = data;
1492 struct drm_output *output;
1493 struct drm_display_mode *mode;
1495 int props_count = 0;
1499 struct drm_mode_modeinfo u_mode;
1500 struct drm_mode_modeinfo __user *mode_ptr;
1501 uint32_t __user *prop_ptr;
1502 uint64_t __user *prop_values;
1504 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1506 DRM_DEBUG("output id %d:\n", out_resp->output);
1508 mutex_lock(&dev->mode_config.mutex);
1509 output= idr_find(&dev->mode_config.crtc_idr, out_resp->output);
1510 if (!output || (output->id != out_resp->output)) {
1515 list_for_each_entry(mode, &output->modes, head)
1518 for (i = 0; i < DRM_OUTPUT_MAX_PROPERTY; i++) {
1519 if (output->property_ids[i] != 0) {
1524 if (out_resp->count_modes == 0) {
1525 drm_crtc_probe_single_output_modes(output, dev->mode_config.max_width, dev->mode_config.max_height);
1528 out_resp->output_type = output->output_type;
1529 out_resp->output_type_id = output->output_type_id;
1530 out_resp->mm_width = output->mm_width;
1531 out_resp->mm_height = output->mm_height;
1532 out_resp->subpixel = output->subpixel_order;
1533 out_resp->connection = output->status;
1535 out_resp->crtc = output->crtc->id;
1539 out_resp->crtcs = output->possible_crtcs;
1540 out_resp->clones = output->possible_clones;
1542 if ((out_resp->count_modes >= mode_count) && mode_count) {
1544 mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr;
1545 list_for_each_entry(mode, &output->modes, head) {
1546 drm_crtc_convert_to_umode(&u_mode, mode);
1547 if (copy_to_user(mode_ptr + copied,
1548 &u_mode, sizeof(u_mode))) {
1556 out_resp->count_modes = mode_count;
1558 if ((out_resp->count_props >= props_count) && props_count) {
1560 prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr);
1561 prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr);
1562 for (i = 0; i < DRM_OUTPUT_MAX_PROPERTY; i++) {
1563 if (output->property_ids[i] != 0) {
1564 if (put_user(output->property_ids[i], prop_ptr + copied)) {
1569 if (put_user(output->property_values[i], prop_values + copied)) {
1577 out_resp->count_props = props_count;
1580 mutex_unlock(&dev->mode_config.mutex);
1585 * drm_mode_setcrtc - set CRTC configuration
1586 * @inode: inode from the ioctl
1587 * @filp: file * from the ioctl
1588 * @cmd: cmd from ioctl
1589 * @arg: arg from ioctl
1594 * Build a new CRTC configuration based on user request.
1596 * Called by the user via ioctl.
1599 * Zero on success, errno on failure.
1601 int drm_mode_setcrtc(struct drm_device *dev,
1602 void *data, struct drm_file *file_priv)
1604 struct drm_mode_crtc *crtc_req = data;
1605 struct drm_crtc *crtc, *crtcfb;
1606 struct drm_output **output_set = NULL, *output;
1607 struct drm_framebuffer *fb = NULL;
1608 struct drm_display_mode *mode = NULL;
1609 uint32_t __user *set_outputs_ptr;
1613 mutex_lock(&dev->mode_config.mutex);
1614 crtc = idr_find(&dev->mode_config.crtc_idr, crtc_req->crtc_id);
1615 if (!crtc || (crtc->id != crtc_req->crtc_id)) {
1616 DRM_DEBUG("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1621 if (crtc_req->mode_valid) {
1622 /* If we have a mode we need a framebuffer. */
1623 /* If we pass -1, set the mode with the currently bound fb */
1624 if (crtc_req->fb_id == -1) {
1625 list_for_each_entry(crtcfb, &dev->mode_config.crtc_list, head) {
1626 if (crtcfb == crtc) {
1627 DRM_DEBUG("Using current fb for setmode\n");
1632 fb = idr_find(&dev->mode_config.crtc_idr, crtc_req->fb_id);
1633 if (!fb || (fb->id != crtc_req->fb_id)) {
1634 DRM_DEBUG("Unknown FB ID%d\n", crtc_req->fb_id);
1640 mode = drm_mode_create(dev);
1641 drm_crtc_convert_umode(mode, &crtc_req->mode);
1642 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
1645 if (crtc_req->count_outputs == 0 && mode) {
1646 DRM_DEBUG("Count outputs is 0 but mode set\n");
1651 if (crtc_req->count_outputs > 0 && !mode && !fb) {
1652 DRM_DEBUG("Count outputs is %d but no mode or fb set\n", crtc_req->count_outputs);
1657 if (crtc_req->count_outputs > 0) {
1659 /* Maybe we should check that count_outputs is a sensible value. */
1660 output_set = kmalloc(crtc_req->count_outputs *
1661 sizeof(struct drm_output *), GFP_KERNEL);
1667 for (i = 0; i < crtc_req->count_outputs; i++) {
1668 set_outputs_ptr = (uint32_t *)(unsigned long)crtc_req->set_outputs_ptr;
1669 if (get_user(out_id, &set_outputs_ptr[i])) {
1674 output = idr_find(&dev->mode_config.crtc_idr, out_id);
1675 if (!output || (out_id != output->id)) {
1676 DRM_DEBUG("Output id %d unknown\n", out_id);
1681 output_set[i] = output;
1685 ret = drm_crtc_set_config(crtc, crtc_req, mode, output_set, fb);
1689 mutex_unlock(&dev->mode_config.mutex);
1693 int drm_mode_cursor_ioctl(struct drm_device *dev,
1694 void *data, struct drm_file *file_priv)
1696 struct drm_mode_cursor *req = data;
1697 struct drm_crtc *crtc;
1698 struct drm_buffer_object *bo = NULL; /* must be set */
1704 DRM_ERROR("no operation set\n");
1708 mutex_lock(&dev->mode_config.mutex);
1709 crtc = idr_find(&dev->mode_config.crtc_idr, req->crtc);
1710 if (!crtc || (crtc->id != req->crtc)) {
1711 DRM_DEBUG("Unknown CRTC ID %d\n", req->crtc);
1716 if (req->flags & DRM_MODE_CURSOR_BO) {
1717 /* Turn of the cursor if handle is 0 */
1719 ret = drm_get_buffer_object(dev, &bo, req->handle);
1722 DRM_ERROR("invalid buffer id\n");
1727 if (crtc->funcs->cursor_set) {
1728 ret = crtc->funcs->cursor_set(crtc, bo, req->width, req->height);
1730 DRM_ERROR("crtc does not support cursor\n");
1736 if (req->flags & DRM_MODE_CURSOR_MOVE) {
1737 if (crtc->funcs->cursor_move) {
1738 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
1740 DRM_ERROR("crtc does not support cursor\n");
1746 mutex_unlock(&dev->mode_config.mutex);
1751 * drm_mode_addfb - add an FB to the graphics configuration
1752 * @inode: inode from the ioctl
1753 * @filp: file * from the ioctl
1754 * @cmd: cmd from ioctl
1755 * @arg: arg from ioctl
1758 * Takes mode config lock.
1760 * Add a new FB to the specified CRTC, given a user request.
1762 * Called by the user via ioctl.
1765 * Zero on success, errno on failure.
1767 int drm_mode_addfb(struct drm_device *dev,
1768 void *data, struct drm_file *file_priv)
1770 struct drm_mode_fb_cmd *r = data;
1771 struct drm_mode_config *config = &dev->mode_config;
1772 struct drm_framebuffer *fb;
1773 struct drm_buffer_object *bo;
1776 if ((config->min_width > r->width) || (r->width > config->max_width)) {
1777 DRM_ERROR("mode new framebuffer width not within limits\n");
1780 if ((config->min_height > r->height) || (r->height > config->max_height)) {
1781 DRM_ERROR("mode new framebuffer height not within limits\n");
1785 mutex_lock(&dev->mode_config.mutex);
1786 /* TODO check limits are okay */
1787 ret = drm_get_buffer_object(dev, &bo, r->handle);
1789 DRM_ERROR("BO handle not valid\n");
1794 /* TODO check buffer is sufficently large */
1795 /* TODO setup destructor callback */
1797 fb = drm_framebuffer_create(dev);
1799 DRM_ERROR("could not create framebuffer\n");
1804 fb->width = r->width;
1805 fb->height = r->height;
1806 fb->pitch = r->pitch;
1807 fb->bits_per_pixel = r->bpp;
1808 fb->depth = r->depth;
1811 r->buffer_id = fb->id;
1813 list_add(&fb->filp_head, &file_priv->fbs);
1816 mutex_unlock(&dev->mode_config.mutex);
1821 * drm_mode_rmfb - remove an FB from the configuration
1822 * @inode: inode from the ioctl
1823 * @filp: file * from the ioctl
1824 * @cmd: cmd from ioctl
1825 * @arg: arg from ioctl
1828 * Takes mode config lock.
1830 * Remove the FB specified by the user.
1832 * Called by the user via ioctl.
1835 * Zero on success, errno on failure.
1837 int drm_mode_rmfb(struct drm_device *dev,
1838 void *data, struct drm_file *file_priv)
1840 struct drm_framebuffer *fb = 0;
1841 struct drm_framebuffer *fbl = 0;
1842 uint32_t *id = data;
1846 mutex_lock(&dev->mode_config.mutex);
1847 fb = idr_find(&dev->mode_config.crtc_idr, *id);
1848 /* TODO check that we realy get a framebuffer back. */
1849 if (!fb || (*id != fb->id)) {
1850 DRM_ERROR("mode invalid framebuffer id\n");
1855 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
1860 DRM_ERROR("tried to remove a fb that we didn't own\n");
1865 /* TODO release all crtc connected to the framebuffer */
1866 /* TODO unhock the destructor from the buffer object */
1868 if (fb->bo->type == drm_bo_type_kernel)
1869 DRM_ERROR("the bo type should not be of kernel type\n");
1871 list_del(&fb->filp_head);
1872 drm_framebuffer_destroy(fb);
1875 mutex_unlock(&dev->mode_config.mutex);
1880 * drm_mode_getfb - get FB info
1881 * @inode: inode from the ioctl
1882 * @filp: file * from the ioctl
1883 * @cmd: cmd from ioctl
1884 * @arg: arg from ioctl
1889 * Lookup the FB given its ID and return info about it.
1891 * Called by the user via ioctl.
1894 * Zero on success, errno on failure.
1896 int drm_mode_getfb(struct drm_device *dev,
1897 void *data, struct drm_file *file_priv)
1899 struct drm_mode_fb_cmd *r = data;
1900 struct drm_framebuffer *fb;
1903 mutex_lock(&dev->mode_config.mutex);
1904 fb = idr_find(&dev->mode_config.crtc_idr, r->buffer_id);
1905 if (!fb || (r->buffer_id != fb->id)) {
1906 DRM_ERROR("invalid framebuffer id\n");
1911 r->height = fb->height;
1912 r->width = fb->width;
1913 r->depth = fb->depth;
1914 r->bpp = fb->bits_per_pixel;
1915 r->handle = fb->bo->base.hash.key;
1916 r->pitch = fb->pitch;
1919 mutex_unlock(&dev->mode_config.mutex);
1924 * drm_fb_release - remove and free the FBs on this file
1925 * @filp: file * from the ioctl
1928 * Takes mode config lock.
1930 * Destroy all the FBs associated with @filp.
1932 * Called by the user via ioctl.
1935 * Zero on success, errno on failure.
1937 void drm_fb_release(struct file *filp)
1939 struct drm_file *priv = filp->private_data;
1940 struct drm_device *dev = priv->minor->dev;
1941 struct drm_framebuffer *fb, *tfb;
1943 mutex_lock(&dev->mode_config.mutex);
1944 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
1945 list_del(&fb->filp_head);
1946 if (fb->bo->type == drm_bo_type_kernel)
1947 DRM_ERROR("the bo type should not be of kernel_type, the kernel will probably explode, why Dave\n");
1949 drm_framebuffer_destroy(fb);
1951 mutex_unlock(&dev->mode_config.mutex);
1958 static int drm_mode_attachmode(struct drm_device *dev,
1959 struct drm_output *output,
1960 struct drm_display_mode *mode)
1964 list_add_tail(&mode->head, &output->user_modes);
1968 int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
1969 struct drm_display_mode *mode)
1971 struct drm_output *output;
1973 struct drm_display_mode *dup_mode;
1975 list_for_each_entry(output, &dev->mode_config.output_list, head) {
1976 if (output->crtc == crtc) {
1978 dup_mode = drm_mode_duplicate(dev, mode);
1981 ret = drm_mode_attachmode(dev, output, dup_mode);
1989 EXPORT_SYMBOL(drm_mode_attachmode_crtc);
1991 static int drm_mode_detachmode(struct drm_device *dev,
1992 struct drm_output *output,
1993 struct drm_display_mode *mode)
1997 struct drm_display_mode *match_mode, *t;
1999 list_for_each_entry_safe(match_mode, t, &output->user_modes, head) {
2000 if (drm_mode_equal(match_mode, mode)) {
2001 list_del(&match_mode->head);
2002 drm_mode_destroy(dev, match_mode);
2014 int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
2016 struct drm_output *output;
2018 list_for_each_entry(output, &dev->mode_config.output_list, head) {
2019 drm_mode_detachmode(dev, output, mode);
2023 EXPORT_SYMBOL(drm_mode_detachmode_crtc);
2026 * drm_fb_attachmode - Attach a user mode to an output
2027 * @inode: inode from the ioctl
2028 * @filp: file * from the ioctl
2029 * @cmd: cmd from ioctl
2030 * @arg: arg from ioctl
2032 * This attaches a user specified mode to an output.
2033 * Called by the user via ioctl.
2036 * Zero on success, errno on failure.
2038 int drm_mode_attachmode_ioctl(struct drm_device *dev,
2039 void *data, struct drm_file *file_priv)
2041 struct drm_mode_mode_cmd *mode_cmd = data;
2042 struct drm_output *output;
2043 struct drm_display_mode *mode;
2044 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2047 mutex_lock(&dev->mode_config.mutex);
2049 output = idr_find(&dev->mode_config.crtc_idr, mode_cmd->output_id);
2050 if (!output || (output->id != mode_cmd->output_id)) {
2055 mode = drm_mode_create(dev);
2061 drm_crtc_convert_umode(mode, umode);
2063 ret = drm_mode_attachmode(dev, output, mode);
2065 mutex_unlock(&dev->mode_config.mutex);
2071 * drm_fb_detachmode - Detach a user specified mode from an output
2072 * @inode: inode from the ioctl
2073 * @filp: file * from the ioctl
2074 * @cmd: cmd from ioctl
2075 * @arg: arg from ioctl
2077 * Called by the user via ioctl.
2080 * Zero on success, errno on failure.
2082 int drm_mode_detachmode_ioctl(struct drm_device *dev,
2083 void *data, struct drm_file *file_priv)
2085 struct drm_mode_mode_cmd *mode_cmd = data;
2086 struct drm_output *output;
2087 struct drm_display_mode mode;
2088 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2091 mutex_lock(&dev->mode_config.mutex);
2093 output = idr_find(&dev->mode_config.crtc_idr, mode_cmd->output_id);
2094 if (!output || (output->id != mode_cmd->output_id)) {
2099 drm_crtc_convert_umode(&mode, umode);
2100 ret = drm_mode_detachmode(dev, output, &mode);
2102 mutex_unlock(&dev->mode_config.mutex);
2106 struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2107 const char *name, int num_values)
2109 struct drm_property *property = NULL;
2111 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2116 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2117 if (!property->values)
2121 property->id = drm_idr_get(dev, property);
2122 property->flags = flags;
2123 property->num_values = num_values;
2124 INIT_LIST_HEAD(&property->enum_blob_list);
2127 strncpy(property->name, name, DRM_PROP_NAME_LEN);
2129 list_add_tail(&property->head, &dev->mode_config.property_list);
2135 EXPORT_SYMBOL(drm_property_create);
2137 int drm_property_add_enum(struct drm_property *property, int index,
2138 uint64_t value, const char *name)
2140 struct drm_property_enum *prop_enum;
2142 if (!(property->flags & DRM_MODE_PROP_ENUM))
2145 if (!list_empty(&property->enum_blob_list)) {
2146 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2147 if (prop_enum->value == value) {
2148 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2149 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2155 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2159 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2160 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2161 prop_enum->value = value;
2163 property->values[index] = value;
2164 list_add_tail(&prop_enum->head, &property->enum_blob_list);
2167 EXPORT_SYMBOL(drm_property_add_enum);
2169 void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2171 struct drm_property_enum *prop_enum, *pt;
2173 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2174 list_del(&prop_enum->head);
2178 if (property->num_values)
2179 kfree(property->values);
2180 drm_idr_put(dev, property->id);
2181 list_del(&property->head);
2184 EXPORT_SYMBOL(drm_property_destroy);
2186 int drm_output_attach_property(struct drm_output *output,
2187 struct drm_property *property, uint64_t init_val)
2191 for (i = 0; i < DRM_OUTPUT_MAX_PROPERTY; i++) {
2192 if (output->property_ids[i] == 0) {
2193 output->property_ids[i] = property->id;
2194 output->property_values[i] = init_val;
2199 if (i == DRM_OUTPUT_MAX_PROPERTY)
2203 EXPORT_SYMBOL(drm_output_attach_property);
2205 int drm_output_property_set_value(struct drm_output *output,
2206 struct drm_property *property, uint64_t value)
2210 for (i = 0; i < DRM_OUTPUT_MAX_PROPERTY; i++) {
2211 if (output->property_ids[i] == property->id) {
2212 output->property_values[i] = value;
2217 if (i == DRM_OUTPUT_MAX_PROPERTY)
2221 EXPORT_SYMBOL(drm_output_property_set_value);
2223 int drm_mode_getproperty_ioctl(struct drm_device *dev,
2224 void *data, struct drm_file *file_priv)
2226 struct drm_mode_get_property *out_resp = data;
2227 struct drm_property *property;
2230 int value_count = 0;
2233 struct drm_property_enum *prop_enum;
2234 struct drm_mode_property_enum __user *enum_ptr;
2235 struct drm_property_blob *prop_blob;
2236 uint32_t *blob_id_ptr;
2237 uint64_t __user *values_ptr;
2238 uint32_t __user *blob_length_ptr;
2240 mutex_lock(&dev->mode_config.mutex);
2241 property = idr_find(&dev->mode_config.crtc_idr, out_resp->prop_id);
2242 if (!property || (property->id != out_resp->prop_id)) {
2247 if (property->flags & DRM_MODE_PROP_ENUM) {
2248 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2250 } else if (property->flags & DRM_MODE_PROP_BLOB) {
2251 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2255 value_count = property->num_values;
2257 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2258 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2259 out_resp->flags = property->flags;
2261 if ((out_resp->count_values >= value_count) && value_count) {
2262 values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr;
2263 for (i = 0; i < value_count; i++) {
2264 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2270 out_resp->count_values = value_count;
2272 if (property->flags & DRM_MODE_PROP_ENUM) {
2274 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2276 enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr;
2277 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2279 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2284 if (copy_to_user(&enum_ptr[copied].name,
2285 &prop_enum->name, DRM_PROP_NAME_LEN)) {
2292 out_resp->count_enum_blobs = enum_count;
2295 if (property->flags & DRM_MODE_PROP_BLOB) {
2296 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2298 blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr;
2299 blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr;
2301 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2302 if (put_user(prop_blob->id, blob_id_ptr + copied)) {
2307 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
2315 out_resp->count_enum_blobs = enum_count;
2318 mutex_unlock(&dev->mode_config.mutex);
2322 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2325 struct drm_property_blob *blob;
2327 if (!length || !data)
2330 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
2334 blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob));
2335 blob->length = length;
2337 memcpy(blob->data, data, length);
2339 blob->id = drm_idr_get(dev, blob);
2341 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2345 static void drm_property_destroy_blob(struct drm_device *dev,
2346 struct drm_property_blob *blob)
2348 drm_idr_put(dev, blob->id);
2349 list_del(&blob->head);
2353 int drm_mode_getblob_ioctl(struct drm_device *dev,
2354 void *data, struct drm_file *file_priv)
2356 struct drm_mode_get_blob *out_resp = data;
2357 struct drm_property_blob *blob;
2361 mutex_lock(&dev->mode_config.mutex);
2363 blob = idr_find(&dev->mode_config.crtc_idr, out_resp->blob_id);
2364 if (!blob || (blob->id != out_resp->blob_id)) {
2369 if (out_resp->length == blob->length) {
2370 blob_ptr = (void *)(unsigned long)out_resp->data;
2371 if (copy_to_user(blob_ptr, blob->data, blob->length)){
2376 out_resp->length = blob->length;
2379 mutex_unlock(&dev->mode_config.mutex);
2383 int drm_mode_output_update_edid_property(struct drm_output *output, struct edid *edid)
2385 struct drm_device *dev = output->dev;
2387 if (output->edid_blob_ptr)
2388 drm_property_destroy_blob(dev, output->edid_blob_ptr);
2390 output->edid_blob_ptr = drm_property_create_blob(output->dev, 128, edid);
2392 ret = drm_output_property_set_value(output, dev->mode_config.edid_property, output->edid_blob_ptr->id);
2395 EXPORT_SYMBOL(drm_mode_output_update_edid_property);
2397 int drm_mode_output_property_set_ioctl(struct drm_device *dev,
2398 void *data, struct drm_file *file_priv)
2400 struct drm_mode_output_set_property *out_resp = data;
2401 struct drm_property *property;
2402 struct drm_output *output;
2406 mutex_lock(&dev->mode_config.mutex);
2407 output = idr_find(&dev->mode_config.crtc_idr, out_resp->output_id);
2408 if (!output || (output->id != out_resp->output_id)) {
2412 for (i = 0; i < DRM_OUTPUT_MAX_PROPERTY; i++) {
2413 if (output->property_ids[i] == out_resp->prop_id)
2417 if (i == DRM_OUTPUT_MAX_PROPERTY) {
2421 property = idr_find(&dev->mode_config.crtc_idr, out_resp->prop_id);
2422 if (!property || (property->id != out_resp->prop_id)) {
2426 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
2429 if (property->flags & DRM_MODE_PROP_RANGE) {
2430 if (out_resp->value < property->values[0])
2433 if (out_resp->value > property->values[1])
2437 for (i = 0; i < property->num_values; i++) {
2438 if (property->values[i] == out_resp->value) {
2448 if (output->funcs->set_property)
2449 ret = output->funcs->set_property(output, property, out_resp->value);
2452 mutex_unlock(&dev->mode_config.mutex);