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" }
51 char *drm_get_dpms_name(int val)
55 for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
56 if (drm_dpms_enum_list[i].type == val)
57 return drm_dpms_enum_list[i].name;
62 static struct drm_prop_enum_list drm_conn_enum_list[] =
63 { { ConnectorUnknown, "Unknown" },
64 { ConnectorVGA, "VGA" },
65 { ConnectorDVII, "DVI-I" },
66 { ConnectorDVID, "DVI-D" },
67 { ConnectorDVIA, "DVI-A" },
68 { ConnectorComposite, "Composite" },
69 { ConnectorSVIDEO, "SVIDEO" },
70 { ConnectorLVDS, "LVDS" },
71 { ConnectorComponent, "Component" },
72 { Connector9PinDIN, "9-pin DIN" },
73 { ConnectorDisplayPort, "DisplayPort" },
74 { ConnectorHDMIA, "HDMI Type A" },
75 { ConnectorHDMIB, "HDMI Type B" },
77 static struct drm_prop_enum_list drm_output_enum_list[] =
78 { { DRM_MODE_OUTPUT_NONE, "None" },
79 { DRM_MODE_OUTPUT_DAC, "DAC" },
80 { DRM_MODE_OUTPUT_TMDS, "TMDS" },
81 { DRM_MODE_OUTPUT_LVDS, "LVDS" },
82 { DRM_MODE_OUTPUT_TVDAC, "TV" },
85 char *drm_get_output_name(struct drm_output *output)
89 snprintf(buf, 32, "%s-%d", drm_output_enum_list[output->output_type].name,
90 output->output_type_id);
94 char *drm_get_output_status_name(enum drm_output_status status)
96 if (status == output_status_connected)
98 else if (status == output_status_disconnected)
99 return "disconnected";
105 * drm_idr_get - allocate a new identifier
107 * @ptr: object pointer, used to generate unique ID
110 * Caller must hold DRM mode_config lock.
112 * Create a unique identifier based on @ptr in @dev's identifier space. Used
113 * for tracking modes, CRTCs and outputs.
116 * New unique (relative to other objects in @dev) integer identifier for the
119 int drm_idr_get(struct drm_device *dev, void *ptr)
124 if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
125 DRM_ERROR("Ran out memory getting a mode number\n");
129 ret = idr_get_new_above(&dev->mode_config.crtc_idr, ptr, 1, &new_id);
137 * drm_idr_put - free an identifer
142 * Caller must hold DRM mode_config lock.
144 * Free @id from @dev's unique identifier pool.
146 void drm_idr_put(struct drm_device *dev, int id)
148 idr_remove(&dev->mode_config.crtc_idr, id);
152 * drm_crtc_from_fb - find the CRTC structure associated with an fb
154 * @fb: framebuffer in question
157 * Caller must hold mode_config lock.
159 * Find CRTC in the mode_config structure that matches @fb.
162 * Pointer to the CRTC or NULL if it wasn't found.
164 struct drm_crtc *drm_crtc_from_fb(struct drm_device *dev,
165 struct drm_framebuffer *fb)
167 struct drm_crtc *crtc;
169 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
177 * drm_framebuffer_create - create a new framebuffer object
181 * Caller must hold mode config lock.
183 * Creates a new framebuffer objects and adds it to @dev's DRM mode_config.
186 * Pointer to new framebuffer or NULL on error.
188 struct drm_framebuffer *drm_framebuffer_create(struct drm_device *dev)
190 struct drm_framebuffer *fb;
192 fb = kzalloc(sizeof(struct drm_framebuffer), GFP_KERNEL);
196 fb->id = drm_idr_get(dev, fb);
198 dev->mode_config.num_fb++;
199 list_add(&fb->head, &dev->mode_config.fb_list);
203 EXPORT_SYMBOL(drm_framebuffer_create);
206 * drm_framebuffer_destroy - remove a framebuffer object
207 * @fb: framebuffer to remove
210 * Caller must hold mode config lock.
212 * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes
213 * it, setting it to NULL.
215 void drm_framebuffer_destroy(struct drm_framebuffer *fb)
217 struct drm_device *dev = fb->dev;
218 struct drm_crtc *crtc;
220 /* remove from any CRTC */
221 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
226 drm_idr_put(dev, fb->id);
228 dev->mode_config.num_fb--;
232 EXPORT_SYMBOL(drm_framebuffer_destroy);
235 * drm_crtc_create - create a new CRTC object
237 * @funcs: callbacks for the new CRTC
240 * Caller must hold mode config lock.
242 * Creates a new CRTC object and adds it to @dev's mode_config structure.
245 * Pointer to new CRTC object or NULL on error.
247 struct drm_crtc *drm_crtc_create(struct drm_device *dev,
248 const struct drm_crtc_funcs *funcs)
250 struct drm_crtc *crtc;
252 crtc = kzalloc(sizeof(struct drm_crtc), GFP_KERNEL);
259 crtc->id = drm_idr_get(dev, crtc);
261 list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
262 dev->mode_config.num_crtc++;
266 EXPORT_SYMBOL(drm_crtc_create);
269 * drm_crtc_destroy - remove a CRTC object
270 * @crtc: CRTC to remove
273 * Caller must hold mode config lock.
275 * Cleanup @crtc. Calls @crtc's cleanup function, then removes @crtc from
276 * its associated DRM device's mode_config. Frees it afterwards.
278 void drm_crtc_destroy(struct drm_crtc *crtc)
280 struct drm_device *dev = crtc->dev;
282 if (crtc->funcs->cleanup)
283 (*crtc->funcs->cleanup)(crtc);
285 drm_idr_put(dev, crtc->id);
286 list_del(&crtc->head);
287 dev->mode_config.num_crtc--;
290 EXPORT_SYMBOL(drm_crtc_destroy);
293 * drm_crtc_in_use - check if a given CRTC is in a mode_config
294 * @crtc: CRTC to check
297 * Caller must hold mode config lock.
299 * Walk @crtc's DRM device's mode_config and see if it's in use.
302 * True if @crtc is part of the mode_config, false otherwise.
304 bool drm_crtc_in_use(struct drm_crtc *crtc)
306 struct drm_output *output;
307 struct drm_device *dev = crtc->dev;
308 /* FIXME: Locking around list access? */
309 list_for_each_entry(output, &dev->mode_config.output_list, head)
310 if (output->crtc == crtc)
314 EXPORT_SYMBOL(drm_crtc_in_use);
317 * Detailed mode info for a standard 640x480@60Hz monitor
319 static struct drm_display_mode std_mode[] = {
320 { DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 25200, 640, 656,
321 752, 800, 0, 480, 490, 492, 525, 0,
322 V_NHSYNC | V_NVSYNC) }, /* 640x480@60Hz */
326 * drm_crtc_probe_output_modes - get complete set of display modes
328 * @maxX: max width for modes
329 * @maxY: max height for modes
332 * Caller must hold mode config lock.
334 * Based on @dev's mode_config layout, scan all the outputs and try to detect
335 * modes on them. Modes will first be added to the output's probed_modes
336 * list, then culled (based on validity and the @maxX, @maxY parameters) and
337 * put into the normal modes list.
339 * Intended to be used either at bootup time or when major configuration
340 * changes have occurred.
342 * FIXME: take into account monitor limits
344 void drm_crtc_probe_single_output_modes(struct drm_output *output, int maxX, int maxY)
346 struct drm_device *dev = output->dev;
347 struct drm_display_mode *mode, *t;
349 //if (maxX == 0 || maxY == 0)
352 /* set all modes to the unverified state */
353 list_for_each_entry_safe(mode, t, &output->modes, head)
354 mode->status = MODE_UNVERIFIED;
356 output->status = (*output->funcs->detect)(output);
358 if (output->status == output_status_disconnected) {
359 DRM_DEBUG("%s is disconnected\n", drm_get_output_name(output));
360 /* TODO set EDID to NULL */
364 ret = (*output->funcs->get_modes)(output);
367 drm_mode_output_list_update(output);
371 drm_mode_validate_size(dev, &output->modes, maxX,
373 list_for_each_entry_safe(mode, t, &output->modes, head) {
374 if (mode->status == MODE_OK)
375 mode->status = (*output->funcs->mode_valid)(output,mode);
379 drm_mode_prune_invalid(dev, &output->modes, TRUE);
381 if (list_empty(&output->modes)) {
382 struct drm_display_mode *stdmode;
384 DRM_DEBUG("No valid modes on %s\n", drm_get_output_name(output));
386 /* Should we do this here ???
387 * When no valid EDID modes are available we end up
388 * here and bailed in the past, now we add a standard
389 * 640x480@60Hz mode and carry on.
391 stdmode = drm_mode_duplicate(dev, &std_mode[0]);
392 drm_mode_probed_add(output, stdmode);
393 drm_mode_list_concat(&output->probed_modes,
396 DRM_DEBUG("Adding standard 640x480 @ 60Hz to %s\n",
397 drm_get_output_name(output));
400 drm_mode_sort(&output->modes);
402 DRM_DEBUG("Probed modes for %s\n", drm_get_output_name(output));
403 list_for_each_entry_safe(mode, t, &output->modes, head) {
404 mode->vrefresh = drm_mode_vrefresh(mode);
406 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
407 drm_mode_debug_printmodeline(dev, mode);
411 void drm_crtc_probe_output_modes(struct drm_device *dev, int maxX, int maxY)
413 struct drm_output *output;
415 list_for_each_entry(output, &dev->mode_config.output_list, head) {
416 drm_crtc_probe_single_output_modes(output, maxX, maxY);
419 EXPORT_SYMBOL(drm_crtc_probe_output_modes);
422 * drm_crtc_set_mode - set a mode
423 * @crtc: CRTC to program
429 * Caller must hold mode config lock.
431 * Try to set @mode on @crtc. Give @crtc and its associated outputs a chance
432 * to fixup or reject the mode prior to trying to set it.
435 * True if the mode was set successfully, or false otherwise.
437 bool drm_crtc_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode,
440 struct drm_device *dev = crtc->dev;
441 struct drm_display_mode *adjusted_mode, saved_mode;
442 int saved_x, saved_y;
443 struct drm_output *output;
446 adjusted_mode = drm_mode_duplicate(dev, mode);
448 crtc->enabled = drm_crtc_in_use(crtc);
453 saved_mode = crtc->mode;
457 /* Update crtc values up front so the driver can rely on them for mode
464 if (drm_mode_equal(&saved_mode, &crtc->mode)) {
465 if (saved_x != crtc->x || saved_y != crtc->y) {
466 crtc->funcs->mode_set_base(crtc, crtc->x, crtc->y);
471 /* Pass our mode to the outputs and the CRTC to give them a chance to
472 * adjust it according to limitations or output properties, and also
473 * a chance to reject the mode entirely.
475 list_for_each_entry(output, &dev->mode_config.output_list, head) {
477 if (output->crtc != crtc)
480 if (!(ret = output->funcs->mode_fixup(output, mode, adjusted_mode))) {
485 if (!(ret = crtc->funcs->mode_fixup(crtc, mode, adjusted_mode))) {
489 /* Prepare the outputs and CRTCs before setting the mode. */
490 list_for_each_entry(output, &dev->mode_config.output_list, head) {
492 if (output->crtc != crtc)
495 /* Disable the output as the first thing we do. */
496 output->funcs->prepare(output);
499 crtc->funcs->prepare(crtc);
501 /* Set up the DPLL and any output state that needs to adjust or depend
504 crtc->funcs->mode_set(crtc, mode, adjusted_mode, x, y);
506 list_for_each_entry(output, &dev->mode_config.output_list, head) {
508 if (output->crtc != crtc)
511 DRM_INFO("%s: set mode %s %x\n", drm_get_output_name(output), mode->name, mode->mode_id);
513 output->funcs->mode_set(output, mode, adjusted_mode);
516 /* Now, enable the clocks, plane, pipe, and outputs that we set up. */
517 crtc->funcs->commit(crtc);
519 list_for_each_entry(output, &dev->mode_config.output_list, head) {
521 if (output->crtc != crtc)
524 output->funcs->commit(output);
526 #if 0 // TODO def RANDR_12_INTERFACE
527 if (output->randr_output)
528 RRPostPendingProperties (output->randr_output);
532 /* XXX free adjustedmode */
533 drm_mode_destroy(dev, adjusted_mode);
535 // if (scrn->pScreen)
536 // drm_crtc_set_screen_sub_pixel_order(dev);
540 crtc->mode = saved_mode;
547 EXPORT_SYMBOL(drm_crtc_set_mode);
550 * drm_disable_unused_functions - disable unused objects
554 * Caller must hold mode config lock.
556 * If an output or CRTC isn't part of @dev's mode_config, it can be disabled
557 * by calling its dpms function, which should power it off.
559 void drm_disable_unused_functions(struct drm_device *dev)
561 struct drm_output *output;
562 struct drm_crtc *crtc;
564 list_for_each_entry(output, &dev->mode_config.output_list, head) {
566 (*output->funcs->dpms)(output, DPMSModeOff);
569 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
571 crtc->funcs->dpms(crtc, DPMSModeOff);
574 EXPORT_SYMBOL(drm_disable_unused_functions);
577 * drm_mode_probed_add - add a mode to the specified output's probed mode list
578 * @output: output the new mode
582 * Caller must hold mode config lock.
584 * Add @mode to @output's mode list for later use.
586 void drm_mode_probed_add(struct drm_output *output,
587 struct drm_display_mode *mode)
589 list_add(&mode->head, &output->probed_modes);
591 EXPORT_SYMBOL(drm_mode_probed_add);
594 * drm_mode_remove - remove and free a mode
595 * @output: output list to modify
596 * @mode: mode to remove
599 * Caller must hold mode config lock.
601 * Remove @mode from @output's mode list, then free it.
603 void drm_mode_remove(struct drm_output *output, struct drm_display_mode *mode)
605 list_del(&mode->head);
608 EXPORT_SYMBOL(drm_mode_remove);
611 * drm_output_create - create a new output
613 * @funcs: callbacks for this output
614 * @name: user visible name of the output
617 * Caller must hold @dev's mode_config lock.
619 * Creates a new drm_output structure and adds it to @dev's mode_config
623 * Pointer to the new output or NULL on error.
625 struct drm_output *drm_output_create(struct drm_device *dev,
626 const struct drm_output_funcs *funcs,
629 struct drm_output *output = NULL;
631 output = kzalloc(sizeof(struct drm_output), GFP_KERNEL);
636 output->funcs = funcs;
637 output->id = drm_idr_get(dev, output);
638 output->output_type = output_type;
639 output->output_type_id = 1; /* TODO */
640 INIT_LIST_HEAD(&output->user_modes);
641 INIT_LIST_HEAD(&output->probed_modes);
642 INIT_LIST_HEAD(&output->modes);
644 /* output_set_monitor(output)? */
645 /* check for output_ignored(output)? */
647 mutex_lock(&dev->mode_config.mutex);
648 list_add_tail(&output->head, &dev->mode_config.output_list);
649 dev->mode_config.num_output++;
651 drm_output_attach_property(output, dev->mode_config.edid_property, 0);
653 drm_output_attach_property(output, dev->mode_config.dpms_property, 0);
655 mutex_unlock(&dev->mode_config.mutex);
660 EXPORT_SYMBOL(drm_output_create);
663 * drm_output_destroy - remove an output
664 * @output: output to remove
667 * Caller must hold @dev's mode_config lock.
669 * Call @output's cleanup function, then remove the output from the DRM
670 * mode_config after freeing @output's modes.
672 void drm_output_destroy(struct drm_output *output)
674 struct drm_device *dev = output->dev;
675 struct drm_display_mode *mode, *t;
677 if (*output->funcs->cleanup)
678 (*output->funcs->cleanup)(output);
680 list_for_each_entry_safe(mode, t, &output->probed_modes, head)
681 drm_mode_remove(output, mode);
683 list_for_each_entry_safe(mode, t, &output->modes, head)
684 drm_mode_remove(output, mode);
686 list_for_each_entry_safe(mode, t, &output->user_modes, head)
687 drm_mode_remove(output, mode);
689 mutex_lock(&dev->mode_config.mutex);
690 drm_idr_put(dev, output->id);
691 list_del(&output->head);
692 mutex_unlock(&dev->mode_config.mutex);
695 EXPORT_SYMBOL(drm_output_destroy);
699 * drm_mode_create - create a new display mode
705 * Create a new drm_display_mode, give it an ID, and return it.
708 * Pointer to new mode on success, NULL on error.
710 struct drm_display_mode *drm_mode_create(struct drm_device *dev)
712 struct drm_display_mode *nmode;
714 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
718 nmode->mode_id = drm_idr_get(dev, nmode);
721 EXPORT_SYMBOL(drm_mode_create);
724 * drm_mode_destroy - remove a mode
726 * @mode: mode to remove
729 * Caller must hold mode config lock.
731 * Free @mode's unique identifier, then free it.
733 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
735 drm_idr_put(dev, mode->mode_id);
739 EXPORT_SYMBOL(drm_mode_destroy);
741 static int drm_mode_create_standard_output_properties(struct drm_device *dev)
746 * Standard properties (apply to all outputs)
748 dev->mode_config.edid_property =
749 drm_property_create(dev, DRM_MODE_PROP_BLOB | DRM_MODE_PROP_IMMUTABLE,
752 dev->mode_config.dpms_property =
753 drm_property_create(dev, DRM_MODE_PROP_ENUM,
754 "DPMS", ARRAY_SIZE(drm_dpms_enum_list));
755 for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
756 drm_property_add_enum(dev->mode_config.dpms_property, i, drm_dpms_enum_list[i].type, drm_dpms_enum_list[i].name);
758 dev->mode_config.connector_type_property =
759 drm_property_create(dev, DRM_MODE_PROP_ENUM | DRM_MODE_PROP_IMMUTABLE,
760 "Connector Type", ARRAY_SIZE(drm_conn_enum_list));
761 for (i = 0; i < ARRAY_SIZE(drm_conn_enum_list); i++)
762 drm_property_add_enum(dev->mode_config.connector_type_property, i, drm_conn_enum_list[i].type, drm_conn_enum_list[i].name);
764 dev->mode_config.connector_num_property =
765 drm_property_create(dev, DRM_MODE_PROP_RANGE | DRM_MODE_PROP_IMMUTABLE,
767 dev->mode_config.connector_num_property->values[0] = 0;
768 dev->mode_config.connector_num_property->values[1] = 20;
774 * drm_create_tv_properties - create TV specific output properties
776 * @num_modes: number of different TV formats (modes) supported
777 * @modes: array of pointers to strings containing name of each format
779 * Called by a driver's TV initialization routine, this function creates
780 * the TV specific output properties for a given device. Caller is
781 * responsible for allocating a list of format names and passing them to
784 bool drm_create_tv_properties(struct drm_device *dev, int num_modes,
789 dev->mode_config.tv_left_margin_property =
790 drm_property_create(dev, DRM_MODE_PROP_RANGE |
791 DRM_MODE_PROP_IMMUTABLE,
793 dev->mode_config.tv_left_margin_property->values[0] = 0;
794 dev->mode_config.tv_left_margin_property->values[1] = 100;
796 dev->mode_config.tv_right_margin_property =
797 drm_property_create(dev, DRM_MODE_PROP_RANGE,
799 dev->mode_config.tv_right_margin_property->values[0] = 0;
800 dev->mode_config.tv_right_margin_property->values[1] = 100;
802 dev->mode_config.tv_top_margin_property =
803 drm_property_create(dev, DRM_MODE_PROP_RANGE,
805 dev->mode_config.tv_top_margin_property->values[0] = 0;
806 dev->mode_config.tv_top_margin_property->values[1] = 100;
808 dev->mode_config.tv_bottom_margin_property =
809 drm_property_create(dev, DRM_MODE_PROP_RANGE,
811 dev->mode_config.tv_bottom_margin_property->values[0] = 0;
812 dev->mode_config.tv_bottom_margin_property->values[1] = 100;
814 dev->mode_config.tv_mode_property =
815 drm_property_create(dev, DRM_MODE_PROP_ENUM,
817 for (i = 0; i < num_modes; i++)
818 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
823 EXPORT_SYMBOL(drm_create_tv_properties);
826 * drm_mode_config_init - initialize DRM mode_configuration structure
830 * None, should happen single threaded at init time.
832 * Initialize @dev's mode_config structure, used for tracking the graphics
833 * configuration of @dev.
835 void drm_mode_config_init(struct drm_device *dev)
837 mutex_init(&dev->mode_config.mutex);
838 INIT_LIST_HEAD(&dev->mode_config.fb_list);
839 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
840 INIT_LIST_HEAD(&dev->mode_config.output_list);
841 INIT_LIST_HEAD(&dev->mode_config.property_list);
842 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
843 idr_init(&dev->mode_config.crtc_idr);
845 drm_mode_create_standard_output_properties(dev);
847 /* Just to be sure */
848 dev->mode_config.num_fb = 0;
849 dev->mode_config.num_output = 0;
850 dev->mode_config.num_crtc = 0;
851 dev->mode_config.hotplug_counter = 0;
853 EXPORT_SYMBOL(drm_mode_config_init);
856 * drm_get_buffer_object - find the buffer object for a given handle
858 * @bo: pointer to caller's buffer_object pointer
859 * @handle: handle to lookup
862 * Must take @dev's struct_mutex to protect buffer object lookup.
864 * Given @handle, lookup the buffer object in @dev and put it in the caller's
868 * Zero on success, -EINVAL if the handle couldn't be found.
870 static int drm_get_buffer_object(struct drm_device *dev, struct drm_buffer_object **bo, unsigned long handle)
872 struct drm_user_object *uo;
873 struct drm_hash_item *hash;
878 mutex_lock(&dev->struct_mutex);
879 ret = drm_ht_find_item(&dev->object_hash, handle, &hash);
881 DRM_ERROR("Couldn't find handle.\n");
886 uo = drm_hash_entry(hash, struct drm_user_object, hash);
887 if (uo->type != drm_buffer_type) {
892 *bo = drm_user_object_entry(uo, struct drm_buffer_object, base);
895 mutex_unlock(&dev->struct_mutex);
900 * drm_pick_crtcs - pick crtcs for output devices
904 * Caller must hold mode config lock.
906 static void drm_pick_crtcs (struct drm_device *dev)
909 struct drm_output *output, *output_equal;
910 struct drm_crtc *crtc;
911 struct drm_display_mode *des_mode = NULL, *modes, *modes_equal;
914 list_for_each_entry(output, &dev->mode_config.output_list, head) {
917 /* Don't hook up outputs that are disconnected ??
919 * This is debateable. Do we want fixed /dev/fbX or
920 * dynamic on hotplug (need mode code for that though) ?
922 * If we don't hook up outputs now, then we only create
923 * /dev/fbX for the output that's enabled, that's good as
924 * the users console will be on that output.
926 * If we do hook up outputs that are disconnected now, then
927 * the user may end up having to muck about with the fbcon
928 * map flags to assign his console to the enabled output. Ugh.
930 if (output->status != output_status_connected)
933 if (list_empty(&output->modes))
938 list_for_each_entry(des_mode, &output->modes, head) {
939 if (des_mode->type & DRM_MODE_TYPE_PREFERRED) {
945 /* No preferred mode, let's just select the first available */
948 list_for_each_entry(des_mode, &output->modes, head) {
954 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
958 if ((output->possible_crtcs & (1 << c)) == 0)
961 list_for_each_entry(output_equal, &dev->mode_config.output_list, head) {
962 if (output->id == output_equal->id)
965 /* Find out if crtc has been assigned before */
966 if (output_equal->crtc == crtc)
970 #if 1 /* continue for now */
976 list_for_each_entry(output_equal, &dev->mode_config.output_list, head) {
978 if (output->id == output_equal->id)
981 list_for_each_entry(modes, &output->modes, head) {
982 list_for_each_entry(modes_equal, &output_equal->modes, head) {
983 if (drm_mode_equal (modes, modes_equal)) {
984 if ((output->possible_clones & output_equal->possible_clones) && (output_equal->crtc == crtc)) {
985 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);
996 /* crtc has been assigned skip it */
1000 /* Found a CRTC to attach to, do it ! */
1001 output->crtc = crtc;
1002 output->crtc->desired_mode = des_mode;
1003 output->initial_x = 0;
1004 output->initial_y = 0;
1005 DRM_DEBUG("Desired mode for CRTC %d is 0x%x:%s\n",c,des_mode->mode_id, des_mode->name);
1010 EXPORT_SYMBOL(drm_pick_crtcs);
1013 * drm_initial_config - setup a sane initial output configuration
1015 * @can_grow: this configuration is growable
1018 * Called at init time, must take mode config lock.
1020 * Scan the CRTCs and outputs and try to put together an initial setup.
1021 * At the moment, this is a cloned configuration across all heads with
1022 * a new framebuffer object as the backing store.
1025 * Zero if everything went ok, nonzero otherwise.
1027 bool drm_initial_config(struct drm_device *dev, bool can_grow)
1029 struct drm_output *output;
1030 struct drm_crtc *crtc;
1033 mutex_lock(&dev->mode_config.mutex);
1035 drm_crtc_probe_output_modes(dev, 2048, 2048);
1037 drm_pick_crtcs(dev);
1039 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1041 /* can't setup the crtc if there's no assigned mode */
1042 if (!crtc->desired_mode)
1045 /* Now setup the fbdev for attached crtcs */
1046 dev->driver->fb_probe(dev, crtc);
1049 /* This is a little screwy, as we've already walked the outputs
1050 * above, but it's a little bit of magic too. There's the potential
1051 * for things not to get setup above if an existing device gets
1052 * re-assigned thus confusing the hardware. By walking the outputs
1053 * this fixes up their crtc's.
1055 list_for_each_entry(output, &dev->mode_config.output_list, head) {
1057 /* can't setup the output if there's no assigned mode */
1058 if (!output->crtc || !output->crtc->desired_mode)
1061 /* and needs an attached fb */
1062 if (output->crtc->fb)
1063 drm_crtc_set_mode(output->crtc, output->crtc->desired_mode, 0, 0);
1066 drm_disable_unused_functions(dev);
1068 mutex_unlock(&dev->mode_config.mutex);
1071 EXPORT_SYMBOL(drm_initial_config);
1074 * drm_mode_config_cleanup - free up DRM mode_config info
1078 * Caller must hold mode config lock.
1080 * Free up all the outputs and CRTCs associated with this DRM device, then
1081 * free up the framebuffers and associated buffer objects.
1083 * FIXME: cleanup any dangling user buffer objects too
1085 void drm_mode_config_cleanup(struct drm_device *dev)
1087 struct drm_output *output, *ot;
1088 struct drm_crtc *crtc, *ct;
1089 struct drm_framebuffer *fb, *fbt;
1090 struct drm_property *property, *pt;
1092 list_for_each_entry_safe(output, ot, &dev->mode_config.output_list, head) {
1093 drm_sysfs_output_remove(output);
1094 drm_output_destroy(output);
1097 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, head) {
1098 drm_property_destroy(dev, property);
1101 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
1102 /* there should only be bo of kernel type left */
1103 if (fb->bo->type != drm_bo_type_kernel)
1104 drm_framebuffer_destroy(fb);
1106 dev->driver->fb_remove(dev, drm_crtc_from_fb(dev, fb));
1109 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
1110 drm_crtc_destroy(crtc);
1114 EXPORT_SYMBOL(drm_mode_config_cleanup);
1117 * drm_crtc_set_config - set a new config from userspace
1118 * @crtc: CRTC to setup
1119 * @crtc_info: user provided configuration
1120 * @new_mode: new mode to set
1121 * @output_set: set of outputs for the new config
1122 * @fb: new framebuffer
1125 * Caller must hold mode config lock.
1127 * Setup a new configuration, provided by the user in @crtc_info, and enable
1133 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)
1135 struct drm_device *dev = crtc->dev;
1136 struct drm_crtc **save_crtcs, *new_crtc;
1137 bool save_enabled = crtc->enabled;
1138 bool changed = false;
1139 bool flip_or_move = false;
1140 struct drm_output *output;
1143 /* this is meant to be num_output not num_crtc */
1144 save_crtcs = kzalloc(dev->mode_config.num_output * sizeof(struct drm_crtc *), GFP_KERNEL);
1148 /* We should be able to check here if the fb has the same properties
1149 * and then just flip_or_move it */
1151 flip_or_move = true;
1153 if (crtc_info->x != crtc->x || crtc_info->y != crtc->y)
1154 flip_or_move = true;
1156 if (new_mode && !drm_mode_equal(new_mode, &crtc->mode)) {
1157 DRM_DEBUG("modes are different\n");
1158 drm_mode_debug_printmodeline(dev, &crtc->mode);
1159 drm_mode_debug_printmodeline(dev, new_mode);
1163 list_for_each_entry(output, &dev->mode_config.output_list, head) {
1164 save_crtcs[count++] = output->crtc;
1166 if (output->crtc == crtc)
1169 new_crtc = output->crtc;
1171 for (ro = 0; ro < crtc_info->count_outputs; ro++) {
1172 if (output_set[ro] == output)
1175 if (new_crtc != output->crtc) {
1177 output->crtc = new_crtc;
1181 /* mode_set_base is not a required function */
1182 if (flip_or_move && !crtc->funcs->mode_set_base)
1187 crtc->enabled = (new_mode != NULL);
1188 if (new_mode != NULL) {
1189 DRM_DEBUG("attempting to set mode from userspace\n");
1190 drm_mode_debug_printmodeline(dev, new_mode);
1191 if (!drm_crtc_set_mode(crtc, new_mode, crtc_info->x,
1193 crtc->enabled = save_enabled;
1195 list_for_each_entry(output, &dev->mode_config.output_list, head)
1196 output->crtc = save_crtcs[count++];
1200 crtc->desired_x = crtc_info->x;
1201 crtc->desired_y = crtc_info->y;
1202 crtc->desired_mode = new_mode;
1204 drm_disable_unused_functions(dev);
1205 } else if (flip_or_move) {
1208 crtc->funcs->mode_set_base(crtc, crtc_info->x, crtc_info->y);
1216 * drm_hotplug_stage_two
1218 * @output hotpluged output
1221 * Caller must hold mode config lock, function might grab struct lock.
1223 * Stage two of a hotplug.
1226 * Zero on success, errno on failure.
1228 int drm_hotplug_stage_two(struct drm_device *dev, struct drm_output *output,
1233 dev->mode_config.hotplug_counter++;
1235 /* We might want to do something more here */
1237 DRM_DEBUG("not connected\n");
1241 if (output->crtc && output->crtc->desired_mode) {
1242 DRM_DEBUG("drm thinks that the output already has a config\n");
1246 drm_crtc_probe_output_modes(dev, 2048, 2048);
1249 drm_pick_crtcs(dev);
1251 if (!output->crtc || !output->crtc->desired_mode) {
1252 DRM_DEBUG("could not find a desired mode or crtc for output\n");
1256 /* We should really check if there is a fb using this crtc */
1258 dev->driver->fb_probe(dev, output->crtc);
1260 dev->driver->fb_resize(dev, output->crtc);
1262 if (!drm_crtc_set_mode(output->crtc, output->crtc->desired_mode, 0, 0))
1263 DRM_ERROR("failed to set mode after hotplug\n");
1266 drm_sysfs_hotplug_event(dev);
1268 drm_disable_unused_functions(dev);
1272 EXPORT_SYMBOL(drm_hotplug_stage_two);
1274 int drm_mode_hotplug_ioctl(struct drm_device *dev,
1275 void *data, struct drm_file *file_priv)
1277 struct drm_mode_hotplug *arg = data;
1279 arg->counter = dev->mode_config.hotplug_counter;
1285 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1286 * @out: drm_mode_modeinfo struct to return to the user
1287 * @in: drm_display_mode to use
1292 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1295 void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, struct drm_display_mode *in)
1297 out->clock = in->clock;
1298 out->hdisplay = in->hdisplay;
1299 out->hsync_start = in->hsync_start;
1300 out->hsync_end = in->hsync_end;
1301 out->htotal = in->htotal;
1302 out->hskew = in->hskew;
1303 out->vdisplay = in->vdisplay;
1304 out->vsync_start = in->vsync_start;
1305 out->vsync_end = in->vsync_end;
1306 out->vtotal = in->vtotal;
1307 out->vscan = in->vscan;
1308 out->vrefresh = in->vrefresh;
1309 out->flags = in->flags;
1310 out->type = in->type;
1311 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1312 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1316 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1317 * @out: drm_display_mode to return to the user
1318 * @in: drm_mode_modeinfo to use
1323 * Convert a drmo_mode_modeinfo into a drm_display_mode structure to return to
1326 void drm_crtc_convert_umode(struct drm_display_mode *out, struct drm_mode_modeinfo *in)
1328 out->clock = in->clock;
1329 out->hdisplay = in->hdisplay;
1330 out->hsync_start = in->hsync_start;
1331 out->hsync_end = in->hsync_end;
1332 out->htotal = in->htotal;
1333 out->hskew = in->hskew;
1334 out->vdisplay = in->vdisplay;
1335 out->vsync_start = in->vsync_start;
1336 out->vsync_end = in->vsync_end;
1337 out->vtotal = in->vtotal;
1338 out->vscan = in->vscan;
1339 out->vrefresh = in->vrefresh;
1340 out->flags = in->flags;
1341 out->type = in->type;
1342 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1343 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1347 * drm_mode_getresources - get graphics configuration
1348 * @inode: inode from the ioctl
1349 * @filp: file * from the ioctl
1350 * @cmd: cmd from ioctl
1351 * @arg: arg from ioctl
1354 * Takes mode config lock.
1356 * Construct a set of configuration description structures and return
1357 * them to the user, including CRTC, output and framebuffer configuration.
1359 * Called by the user via ioctl.
1362 * Zero on success, errno on failure.
1364 int drm_mode_getresources(struct drm_device *dev,
1365 void *data, struct drm_file *file_priv)
1367 struct drm_mode_card_res *card_res = data;
1368 struct list_head *lh;
1369 struct drm_framebuffer *fb;
1370 struct drm_output *output;
1371 struct drm_crtc *crtc;
1373 int output_count = 0;
1377 uint32_t __user *fb_id;
1378 uint32_t __user *crtc_id;
1379 uint32_t __user *output_id;
1381 mutex_lock(&dev->mode_config.mutex);
1383 list_for_each(lh, &dev->mode_config.fb_list)
1386 list_for_each(lh, &dev->mode_config.crtc_list)
1389 list_for_each(lh, &dev->mode_config.output_list)
1392 card_res->max_height = dev->mode_config.max_height;
1393 card_res->min_height = dev->mode_config.min_height;
1394 card_res->max_width = dev->mode_config.max_width;
1395 card_res->min_width = dev->mode_config.min_width;
1397 /* handle this in 4 parts */
1399 if (card_res->count_fbs >= fb_count) {
1401 fb_id = (uint32_t *)(unsigned long)card_res->fb_id_ptr;
1402 list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
1403 if (put_user(fb->id, fb_id + copied)) {
1410 card_res->count_fbs = fb_count;
1413 if (card_res->count_crtcs >= crtc_count) {
1415 crtc_id = (uint32_t *)(unsigned long)card_res->crtc_id_ptr;
1416 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head){
1417 DRM_DEBUG("CRTC ID is %d\n", crtc->id);
1418 if (put_user(crtc->id, crtc_id + copied)) {
1425 card_res->count_crtcs = crtc_count;
1429 if (card_res->count_outputs >= output_count) {
1431 output_id = (uint32_t *)(unsigned long)card_res->output_id_ptr;
1432 list_for_each_entry(output, &dev->mode_config.output_list,
1434 DRM_DEBUG("OUTPUT ID is %d\n", output->id);
1435 if (put_user(output->id, output_id + copied)) {
1442 card_res->count_outputs = output_count;
1444 DRM_DEBUG("Counted %d %d\n", card_res->count_crtcs,
1445 card_res->count_outputs);
1448 mutex_unlock(&dev->mode_config.mutex);
1453 * drm_mode_getcrtc - get CRTC configuration
1454 * @inode: inode from the ioctl
1455 * @filp: file * from the ioctl
1456 * @cmd: cmd from ioctl
1457 * @arg: arg from ioctl
1462 * Construct a CRTC configuration structure to return to the user.
1464 * Called by the user via ioctl.
1467 * Zero on success, errno on failure.
1469 int drm_mode_getcrtc(struct drm_device *dev,
1470 void *data, struct drm_file *file_priv)
1472 struct drm_mode_crtc *crtc_resp = data;
1473 struct drm_crtc *crtc;
1474 struct drm_output *output;
1478 mutex_lock(&dev->mode_config.mutex);
1479 crtc = idr_find(&dev->mode_config.crtc_idr, crtc_resp->crtc_id);
1480 if (!crtc || (crtc->id != crtc_resp->crtc_id)) {
1485 crtc_resp->x = crtc->x;
1486 crtc_resp->y = crtc->y;
1489 crtc_resp->fb_id = crtc->fb->id;
1491 crtc_resp->fb_id = 0;
1493 crtc_resp->outputs = 0;
1494 if (crtc->enabled) {
1496 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1497 crtc_resp->mode_valid = 1;
1499 list_for_each_entry(output, &dev->mode_config.output_list, head) {
1500 if (output->crtc == crtc)
1501 crtc_resp->outputs |= 1 << (ocount++);
1505 crtc_resp->mode_valid = 0;
1509 mutex_unlock(&dev->mode_config.mutex);
1514 * drm_mode_getoutput - get output configuration
1515 * @inode: inode from the ioctl
1516 * @filp: file * from the ioctl
1517 * @cmd: cmd from ioctl
1518 * @arg: arg from ioctl
1523 * Construct a output configuration structure to return to the user.
1525 * Called by the user via ioctl.
1528 * Zero on success, errno on failure.
1530 int drm_mode_getoutput(struct drm_device *dev,
1531 void *data, struct drm_file *file_priv)
1533 struct drm_mode_get_output *out_resp = data;
1534 struct drm_output *output;
1535 struct drm_display_mode *mode;
1537 int props_count = 0;
1541 struct drm_mode_modeinfo u_mode;
1542 struct drm_mode_modeinfo __user *mode_ptr;
1543 uint32_t __user *prop_ptr;
1544 uint64_t __user *prop_values;
1546 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1548 DRM_DEBUG("output id %d:\n", out_resp->output);
1550 mutex_lock(&dev->mode_config.mutex);
1551 output= idr_find(&dev->mode_config.crtc_idr, out_resp->output);
1552 if (!output || (output->id != out_resp->output)) {
1557 list_for_each_entry(mode, &output->modes, head)
1560 for (i = 0; i < DRM_OUTPUT_MAX_PROPERTY; i++) {
1561 if (output->property_ids[i] != 0) {
1566 if (out_resp->count_modes == 0) {
1567 drm_crtc_probe_single_output_modes(output, dev->mode_config.max_width, dev->mode_config.max_height);
1570 out_resp->output_type = output->output_type;
1571 out_resp->output_type_id = output->output_type_id;
1572 out_resp->mm_width = output->display_info.width_mm;
1573 out_resp->mm_height = output->display_info.height_mm;
1574 out_resp->subpixel = output->display_info.subpixel_order;
1575 out_resp->connection = output->status;
1577 out_resp->crtc = output->crtc->id;
1581 out_resp->crtcs = output->possible_crtcs;
1582 out_resp->clones = output->possible_clones;
1584 if ((out_resp->count_modes >= mode_count) && mode_count) {
1586 mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr;
1587 list_for_each_entry(mode, &output->modes, head) {
1588 drm_crtc_convert_to_umode(&u_mode, mode);
1589 if (copy_to_user(mode_ptr + copied,
1590 &u_mode, sizeof(u_mode))) {
1598 out_resp->count_modes = mode_count;
1600 if ((out_resp->count_props >= props_count) && props_count) {
1602 prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr);
1603 prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr);
1604 for (i = 0; i < DRM_OUTPUT_MAX_PROPERTY; i++) {
1605 if (output->property_ids[i] != 0) {
1606 if (put_user(output->property_ids[i], prop_ptr + copied)) {
1611 if (put_user(output->property_values[i], prop_values + copied)) {
1619 out_resp->count_props = props_count;
1622 mutex_unlock(&dev->mode_config.mutex);
1627 * drm_mode_setcrtc - set CRTC configuration
1628 * @inode: inode from the ioctl
1629 * @filp: file * from the ioctl
1630 * @cmd: cmd from ioctl
1631 * @arg: arg from ioctl
1636 * Build a new CRTC configuration based on user request.
1638 * Called by the user via ioctl.
1641 * Zero on success, errno on failure.
1643 int drm_mode_setcrtc(struct drm_device *dev,
1644 void *data, struct drm_file *file_priv)
1646 struct drm_mode_crtc *crtc_req = data;
1647 struct drm_crtc *crtc, *crtcfb;
1648 struct drm_output **output_set = NULL, *output;
1649 struct drm_framebuffer *fb = NULL;
1650 struct drm_display_mode *mode = NULL;
1651 uint32_t __user *set_outputs_ptr;
1655 mutex_lock(&dev->mode_config.mutex);
1656 crtc = idr_find(&dev->mode_config.crtc_idr, crtc_req->crtc_id);
1657 if (!crtc || (crtc->id != crtc_req->crtc_id)) {
1658 DRM_DEBUG("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1663 if (crtc_req->mode_valid) {
1664 /* If we have a mode we need a framebuffer. */
1665 /* If we pass -1, set the mode with the currently bound fb */
1666 if (crtc_req->fb_id == -1) {
1667 list_for_each_entry(crtcfb, &dev->mode_config.crtc_list, head) {
1668 if (crtcfb == crtc) {
1669 DRM_DEBUG("Using current fb for setmode\n");
1674 fb = idr_find(&dev->mode_config.crtc_idr, crtc_req->fb_id);
1675 if (!fb || (fb->id != crtc_req->fb_id)) {
1676 DRM_DEBUG("Unknown FB ID%d\n", crtc_req->fb_id);
1682 mode = drm_mode_create(dev);
1683 drm_crtc_convert_umode(mode, &crtc_req->mode);
1684 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
1687 if (crtc_req->count_outputs == 0 && mode) {
1688 DRM_DEBUG("Count outputs is 0 but mode set\n");
1693 if (crtc_req->count_outputs > 0 && !mode && !fb) {
1694 DRM_DEBUG("Count outputs is %d but no mode or fb set\n", crtc_req->count_outputs);
1699 if (crtc_req->count_outputs > 0) {
1701 /* Maybe we should check that count_outputs is a sensible value. */
1702 output_set = kmalloc(crtc_req->count_outputs *
1703 sizeof(struct drm_output *), GFP_KERNEL);
1709 for (i = 0; i < crtc_req->count_outputs; i++) {
1710 set_outputs_ptr = (uint32_t *)(unsigned long)crtc_req->set_outputs_ptr;
1711 if (get_user(out_id, &set_outputs_ptr[i])) {
1716 output = idr_find(&dev->mode_config.crtc_idr, out_id);
1717 if (!output || (out_id != output->id)) {
1718 DRM_DEBUG("Output id %d unknown\n", out_id);
1723 output_set[i] = output;
1727 ret = drm_crtc_set_config(crtc, crtc_req, mode, output_set, fb);
1731 mutex_unlock(&dev->mode_config.mutex);
1735 int drm_mode_cursor_ioctl(struct drm_device *dev,
1736 void *data, struct drm_file *file_priv)
1738 struct drm_mode_cursor *req = data;
1739 struct drm_crtc *crtc;
1740 struct drm_buffer_object *bo = NULL; /* must be set */
1746 DRM_ERROR("no operation set\n");
1750 mutex_lock(&dev->mode_config.mutex);
1751 crtc = idr_find(&dev->mode_config.crtc_idr, req->crtc);
1752 if (!crtc || (crtc->id != req->crtc)) {
1753 DRM_DEBUG("Unknown CRTC ID %d\n", req->crtc);
1758 if (req->flags & DRM_MODE_CURSOR_BO) {
1759 /* Turn of the cursor if handle is 0 */
1761 ret = drm_get_buffer_object(dev, &bo, req->handle);
1764 DRM_ERROR("invalid buffer id\n");
1769 if (crtc->funcs->cursor_set) {
1770 ret = crtc->funcs->cursor_set(crtc, bo, req->width, req->height);
1772 DRM_ERROR("crtc does not support cursor\n");
1778 if (req->flags & DRM_MODE_CURSOR_MOVE) {
1779 if (crtc->funcs->cursor_move) {
1780 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
1782 DRM_ERROR("crtc does not support cursor\n");
1788 mutex_unlock(&dev->mode_config.mutex);
1793 * drm_mode_addfb - add an FB to the graphics configuration
1794 * @inode: inode from the ioctl
1795 * @filp: file * from the ioctl
1796 * @cmd: cmd from ioctl
1797 * @arg: arg from ioctl
1800 * Takes mode config lock.
1802 * Add a new FB to the specified CRTC, given a user request.
1804 * Called by the user via ioctl.
1807 * Zero on success, errno on failure.
1809 int drm_mode_addfb(struct drm_device *dev,
1810 void *data, struct drm_file *file_priv)
1812 struct drm_mode_fb_cmd *r = data;
1813 struct drm_mode_config *config = &dev->mode_config;
1814 struct drm_framebuffer *fb;
1815 struct drm_buffer_object *bo;
1818 if ((config->min_width > r->width) || (r->width > config->max_width)) {
1819 DRM_ERROR("mode new framebuffer width not within limits\n");
1822 if ((config->min_height > r->height) || (r->height > config->max_height)) {
1823 DRM_ERROR("mode new framebuffer height not within limits\n");
1827 mutex_lock(&dev->mode_config.mutex);
1828 /* TODO check limits are okay */
1829 ret = drm_get_buffer_object(dev, &bo, r->handle);
1831 DRM_ERROR("BO handle not valid\n");
1836 /* TODO check buffer is sufficently large */
1837 /* TODO setup destructor callback */
1839 fb = drm_framebuffer_create(dev);
1841 DRM_ERROR("could not create framebuffer\n");
1846 fb->width = r->width;
1847 fb->height = r->height;
1848 fb->pitch = r->pitch;
1849 fb->bits_per_pixel = r->bpp;
1850 fb->depth = r->depth;
1853 r->buffer_id = fb->id;
1855 list_add(&fb->filp_head, &file_priv->fbs);
1858 mutex_unlock(&dev->mode_config.mutex);
1863 * drm_mode_rmfb - remove an FB from the configuration
1864 * @inode: inode from the ioctl
1865 * @filp: file * from the ioctl
1866 * @cmd: cmd from ioctl
1867 * @arg: arg from ioctl
1870 * Takes mode config lock.
1872 * Remove the FB specified by the user.
1874 * Called by the user via ioctl.
1877 * Zero on success, errno on failure.
1879 int drm_mode_rmfb(struct drm_device *dev,
1880 void *data, struct drm_file *file_priv)
1882 struct drm_framebuffer *fb = 0;
1883 struct drm_framebuffer *fbl = 0;
1884 uint32_t *id = data;
1888 mutex_lock(&dev->mode_config.mutex);
1889 fb = idr_find(&dev->mode_config.crtc_idr, *id);
1890 /* TODO check that we realy get a framebuffer back. */
1891 if (!fb || (*id != fb->id)) {
1892 DRM_ERROR("mode invalid framebuffer id\n");
1897 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
1902 DRM_ERROR("tried to remove a fb that we didn't own\n");
1907 /* TODO release all crtc connected to the framebuffer */
1908 /* TODO unhock the destructor from the buffer object */
1910 if (fb->bo->type == drm_bo_type_kernel)
1911 DRM_ERROR("the bo type should not be of kernel type\n");
1913 list_del(&fb->filp_head);
1914 drm_framebuffer_destroy(fb);
1917 mutex_unlock(&dev->mode_config.mutex);
1922 * drm_mode_getfb - get FB info
1923 * @inode: inode from the ioctl
1924 * @filp: file * from the ioctl
1925 * @cmd: cmd from ioctl
1926 * @arg: arg from ioctl
1931 * Lookup the FB given its ID and return info about it.
1933 * Called by the user via ioctl.
1936 * Zero on success, errno on failure.
1938 int drm_mode_getfb(struct drm_device *dev,
1939 void *data, struct drm_file *file_priv)
1941 struct drm_mode_fb_cmd *r = data;
1942 struct drm_framebuffer *fb;
1945 mutex_lock(&dev->mode_config.mutex);
1946 fb = idr_find(&dev->mode_config.crtc_idr, r->buffer_id);
1947 if (!fb || (r->buffer_id != fb->id)) {
1948 DRM_ERROR("invalid framebuffer id\n");
1953 r->height = fb->height;
1954 r->width = fb->width;
1955 r->depth = fb->depth;
1956 r->bpp = fb->bits_per_pixel;
1957 r->handle = fb->bo->base.hash.key;
1958 r->pitch = fb->pitch;
1961 mutex_unlock(&dev->mode_config.mutex);
1966 * drm_fb_release - remove and free the FBs on this file
1967 * @filp: file * from the ioctl
1970 * Takes mode config lock.
1972 * Destroy all the FBs associated with @filp.
1974 * Called by the user via ioctl.
1977 * Zero on success, errno on failure.
1979 void drm_fb_release(struct file *filp)
1981 struct drm_file *priv = filp->private_data;
1982 struct drm_device *dev = priv->minor->dev;
1983 struct drm_framebuffer *fb, *tfb;
1985 mutex_lock(&dev->mode_config.mutex);
1986 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
1987 list_del(&fb->filp_head);
1988 if (fb->bo->type == drm_bo_type_kernel)
1989 DRM_ERROR("the bo type should not be of kernel_type, the kernel will probably explode, why Dave\n");
1991 drm_framebuffer_destroy(fb);
1993 mutex_unlock(&dev->mode_config.mutex);
2000 static int drm_mode_attachmode(struct drm_device *dev,
2001 struct drm_output *output,
2002 struct drm_display_mode *mode)
2006 list_add_tail(&mode->head, &output->user_modes);
2010 int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
2011 struct drm_display_mode *mode)
2013 struct drm_output *output;
2015 struct drm_display_mode *dup_mode;
2017 list_for_each_entry(output, &dev->mode_config.output_list, head) {
2018 if (output->crtc == crtc) {
2020 dup_mode = drm_mode_duplicate(dev, mode);
2023 ret = drm_mode_attachmode(dev, output, dup_mode);
2031 EXPORT_SYMBOL(drm_mode_attachmode_crtc);
2033 static int drm_mode_detachmode(struct drm_device *dev,
2034 struct drm_output *output,
2035 struct drm_display_mode *mode)
2039 struct drm_display_mode *match_mode, *t;
2041 list_for_each_entry_safe(match_mode, t, &output->user_modes, head) {
2042 if (drm_mode_equal(match_mode, mode)) {
2043 list_del(&match_mode->head);
2044 drm_mode_destroy(dev, match_mode);
2056 int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
2058 struct drm_output *output;
2060 list_for_each_entry(output, &dev->mode_config.output_list, head) {
2061 drm_mode_detachmode(dev, output, mode);
2065 EXPORT_SYMBOL(drm_mode_detachmode_crtc);
2068 * drm_fb_attachmode - Attach a user mode to an output
2069 * @inode: inode from the ioctl
2070 * @filp: file * from the ioctl
2071 * @cmd: cmd from ioctl
2072 * @arg: arg from ioctl
2074 * This attaches a user specified mode to an output.
2075 * Called by the user via ioctl.
2078 * Zero on success, errno on failure.
2080 int drm_mode_attachmode_ioctl(struct drm_device *dev,
2081 void *data, struct drm_file *file_priv)
2083 struct drm_mode_mode_cmd *mode_cmd = data;
2084 struct drm_output *output;
2085 struct drm_display_mode *mode;
2086 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2089 mutex_lock(&dev->mode_config.mutex);
2091 output = idr_find(&dev->mode_config.crtc_idr, mode_cmd->output_id);
2092 if (!output || (output->id != mode_cmd->output_id)) {
2097 mode = drm_mode_create(dev);
2103 drm_crtc_convert_umode(mode, umode);
2105 ret = drm_mode_attachmode(dev, output, mode);
2107 mutex_unlock(&dev->mode_config.mutex);
2113 * drm_fb_detachmode - Detach a user specified mode from an output
2114 * @inode: inode from the ioctl
2115 * @filp: file * from the ioctl
2116 * @cmd: cmd from ioctl
2117 * @arg: arg from ioctl
2119 * Called by the user via ioctl.
2122 * Zero on success, errno on failure.
2124 int drm_mode_detachmode_ioctl(struct drm_device *dev,
2125 void *data, struct drm_file *file_priv)
2127 struct drm_mode_mode_cmd *mode_cmd = data;
2128 struct drm_output *output;
2129 struct drm_display_mode mode;
2130 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2133 mutex_lock(&dev->mode_config.mutex);
2135 output = idr_find(&dev->mode_config.crtc_idr, mode_cmd->output_id);
2136 if (!output || (output->id != mode_cmd->output_id)) {
2141 drm_crtc_convert_umode(&mode, umode);
2142 ret = drm_mode_detachmode(dev, output, &mode);
2144 mutex_unlock(&dev->mode_config.mutex);
2148 struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2149 const char *name, int num_values)
2151 struct drm_property *property = NULL;
2153 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2158 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2159 if (!property->values)
2163 property->id = drm_idr_get(dev, property);
2164 property->flags = flags;
2165 property->num_values = num_values;
2166 INIT_LIST_HEAD(&property->enum_blob_list);
2169 strncpy(property->name, name, DRM_PROP_NAME_LEN);
2171 list_add_tail(&property->head, &dev->mode_config.property_list);
2177 EXPORT_SYMBOL(drm_property_create);
2179 int drm_property_add_enum(struct drm_property *property, int index,
2180 uint64_t value, const char *name)
2182 struct drm_property_enum *prop_enum;
2184 if (!(property->flags & DRM_MODE_PROP_ENUM))
2187 if (!list_empty(&property->enum_blob_list)) {
2188 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2189 if (prop_enum->value == value) {
2190 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2191 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2197 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2201 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2202 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2203 prop_enum->value = value;
2205 property->values[index] = value;
2206 list_add_tail(&prop_enum->head, &property->enum_blob_list);
2209 EXPORT_SYMBOL(drm_property_add_enum);
2211 void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2213 struct drm_property_enum *prop_enum, *pt;
2215 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2216 list_del(&prop_enum->head);
2220 if (property->num_values)
2221 kfree(property->values);
2222 drm_idr_put(dev, property->id);
2223 list_del(&property->head);
2226 EXPORT_SYMBOL(drm_property_destroy);
2228 int drm_output_attach_property(struct drm_output *output,
2229 struct drm_property *property, uint64_t init_val)
2233 for (i = 0; i < DRM_OUTPUT_MAX_PROPERTY; i++) {
2234 if (output->property_ids[i] == 0) {
2235 output->property_ids[i] = property->id;
2236 output->property_values[i] = init_val;
2241 if (i == DRM_OUTPUT_MAX_PROPERTY)
2245 EXPORT_SYMBOL(drm_output_attach_property);
2247 int drm_output_property_set_value(struct drm_output *output,
2248 struct drm_property *property, uint64_t value)
2252 for (i = 0; i < DRM_OUTPUT_MAX_PROPERTY; i++) {
2253 if (output->property_ids[i] == property->id) {
2254 output->property_values[i] = value;
2259 if (i == DRM_OUTPUT_MAX_PROPERTY)
2263 EXPORT_SYMBOL(drm_output_property_set_value);
2265 int drm_output_property_get_value(struct drm_output *output,
2266 struct drm_property *property, uint64_t *val)
2270 for (i = 0; i < DRM_OUTPUT_MAX_PROPERTY; i++) {
2271 if (output->property_ids[i] == property->id) {
2272 *val = output->property_values[i];
2277 if (i == DRM_OUTPUT_MAX_PROPERTY)
2281 EXPORT_SYMBOL(drm_output_property_get_value);
2283 int drm_mode_getproperty_ioctl(struct drm_device *dev,
2284 void *data, struct drm_file *file_priv)
2286 struct drm_mode_get_property *out_resp = data;
2287 struct drm_property *property;
2290 int value_count = 0;
2293 struct drm_property_enum *prop_enum;
2294 struct drm_mode_property_enum __user *enum_ptr;
2295 struct drm_property_blob *prop_blob;
2296 uint32_t *blob_id_ptr;
2297 uint64_t __user *values_ptr;
2298 uint32_t __user *blob_length_ptr;
2300 mutex_lock(&dev->mode_config.mutex);
2301 property = idr_find(&dev->mode_config.crtc_idr, out_resp->prop_id);
2302 if (!property || (property->id != out_resp->prop_id)) {
2307 if (property->flags & DRM_MODE_PROP_ENUM) {
2308 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2310 } else if (property->flags & DRM_MODE_PROP_BLOB) {
2311 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2315 value_count = property->num_values;
2317 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2318 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2319 out_resp->flags = property->flags;
2321 if ((out_resp->count_values >= value_count) && value_count) {
2322 values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr;
2323 for (i = 0; i < value_count; i++) {
2324 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2330 out_resp->count_values = value_count;
2332 if (property->flags & DRM_MODE_PROP_ENUM) {
2334 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2336 enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr;
2337 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2339 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2344 if (copy_to_user(&enum_ptr[copied].name,
2345 &prop_enum->name, DRM_PROP_NAME_LEN)) {
2352 out_resp->count_enum_blobs = enum_count;
2355 if (property->flags & DRM_MODE_PROP_BLOB) {
2356 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2358 blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr;
2359 blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr;
2361 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2362 if (put_user(prop_blob->id, blob_id_ptr + copied)) {
2367 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
2375 out_resp->count_enum_blobs = enum_count;
2378 mutex_unlock(&dev->mode_config.mutex);
2382 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2385 struct drm_property_blob *blob;
2387 if (!length || !data)
2390 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
2394 blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob));
2395 blob->length = length;
2397 memcpy(blob->data, data, length);
2399 blob->id = drm_idr_get(dev, blob);
2401 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2405 static void drm_property_destroy_blob(struct drm_device *dev,
2406 struct drm_property_blob *blob)
2408 drm_idr_put(dev, blob->id);
2409 list_del(&blob->head);
2413 int drm_mode_getblob_ioctl(struct drm_device *dev,
2414 void *data, struct drm_file *file_priv)
2416 struct drm_mode_get_blob *out_resp = data;
2417 struct drm_property_blob *blob;
2421 mutex_lock(&dev->mode_config.mutex);
2423 blob = idr_find(&dev->mode_config.crtc_idr, out_resp->blob_id);
2424 if (!blob || (blob->id != out_resp->blob_id)) {
2429 if (out_resp->length == blob->length) {
2430 blob_ptr = (void *)(unsigned long)out_resp->data;
2431 if (copy_to_user(blob_ptr, blob->data, blob->length)){
2436 out_resp->length = blob->length;
2439 mutex_unlock(&dev->mode_config.mutex);
2443 int drm_mode_output_update_edid_property(struct drm_output *output, struct edid *edid)
2445 struct drm_device *dev = output->dev;
2447 if (output->edid_blob_ptr)
2448 drm_property_destroy_blob(dev, output->edid_blob_ptr);
2450 output->edid_blob_ptr = drm_property_create_blob(output->dev, 128, edid);
2452 ret = drm_output_property_set_value(output, dev->mode_config.edid_property, output->edid_blob_ptr->id);
2455 EXPORT_SYMBOL(drm_mode_output_update_edid_property);
2457 int drm_mode_output_property_set_ioctl(struct drm_device *dev,
2458 void *data, struct drm_file *file_priv)
2460 struct drm_mode_output_set_property *out_resp = data;
2461 struct drm_property *property;
2462 struct drm_output *output;
2466 mutex_lock(&dev->mode_config.mutex);
2467 output = idr_find(&dev->mode_config.crtc_idr, out_resp->output_id);
2468 if (!output || (output->id != out_resp->output_id)) {
2472 for (i = 0; i < DRM_OUTPUT_MAX_PROPERTY; i++) {
2473 if (output->property_ids[i] == out_resp->prop_id)
2477 if (i == DRM_OUTPUT_MAX_PROPERTY) {
2481 property = idr_find(&dev->mode_config.crtc_idr, out_resp->prop_id);
2482 if (!property || (property->id != out_resp->prop_id)) {
2486 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
2489 if (property->flags & DRM_MODE_PROP_RANGE) {
2490 if (out_resp->value < property->values[0])
2493 if (out_resp->value > property->values[1])
2497 for (i = 0; i < property->num_values; i++) {
2498 if (property->values[i] == out_resp->value) {
2508 if (output->funcs->set_property)
2509 ret = output->funcs->set_property(output, property, out_resp->value);
2512 mutex_unlock(&dev->mode_config.mutex);