2 * Copyright © 2007 David Airlie
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
27 #include <linux/async.h>
28 #include <linux/module.h>
29 #include <linux/kernel.h>
30 #include <linux/console.h>
31 #include <linux/errno.h>
32 #include <linux/string.h>
34 #include <linux/tty.h>
35 #include <linux/sysrq.h>
36 #include <linux/delay.h>
37 #include <linux/init.h>
38 #include <linux/vga_switcheroo.h>
41 #include <drm/drm_crtc.h>
42 #include <drm/drm_fb_helper.h>
43 #include "intel_drv.h"
44 #include "intel_frontbuffer.h"
45 #include <drm/i915_drm.h>
48 static void intel_fbdev_invalidate(struct intel_fbdev *ifbdev)
50 struct drm_i915_gem_object *obj = ifbdev->fb->obj;
51 unsigned int origin = ifbdev->vma->fence ? ORIGIN_GTT : ORIGIN_CPU;
53 intel_fb_obj_invalidate(obj, origin);
56 static int intel_fbdev_set_par(struct fb_info *info)
58 struct drm_fb_helper *fb_helper = info->par;
59 struct intel_fbdev *ifbdev =
60 container_of(fb_helper, struct intel_fbdev, helper);
63 ret = drm_fb_helper_set_par(info);
65 intel_fbdev_invalidate(ifbdev);
70 static int intel_fbdev_blank(int blank, struct fb_info *info)
72 struct drm_fb_helper *fb_helper = info->par;
73 struct intel_fbdev *ifbdev =
74 container_of(fb_helper, struct intel_fbdev, helper);
77 ret = drm_fb_helper_blank(blank, info);
79 intel_fbdev_invalidate(ifbdev);
84 static int intel_fbdev_pan_display(struct fb_var_screeninfo *var,
87 struct drm_fb_helper *fb_helper = info->par;
88 struct intel_fbdev *ifbdev =
89 container_of(fb_helper, struct intel_fbdev, helper);
92 ret = drm_fb_helper_pan_display(var, info);
94 intel_fbdev_invalidate(ifbdev);
99 static struct fb_ops intelfb_ops = {
100 .owner = THIS_MODULE,
101 DRM_FB_HELPER_DEFAULT_OPS,
102 .fb_set_par = intel_fbdev_set_par,
103 .fb_fillrect = drm_fb_helper_cfb_fillrect,
104 .fb_copyarea = drm_fb_helper_cfb_copyarea,
105 .fb_imageblit = drm_fb_helper_cfb_imageblit,
106 .fb_pan_display = intel_fbdev_pan_display,
107 .fb_blank = intel_fbdev_blank,
110 static int intelfb_alloc(struct drm_fb_helper *helper,
111 struct drm_fb_helper_surface_size *sizes)
113 struct intel_fbdev *ifbdev =
114 container_of(helper, struct intel_fbdev, helper);
115 struct drm_framebuffer *fb;
116 struct drm_device *dev = helper->dev;
117 struct drm_i915_private *dev_priv = to_i915(dev);
118 struct i915_ggtt *ggtt = &dev_priv->ggtt;
119 struct drm_mode_fb_cmd2 mode_cmd = {};
120 struct drm_i915_gem_object *obj;
123 /* we don't do packed 24bpp */
124 if (sizes->surface_bpp == 24)
125 sizes->surface_bpp = 32;
127 mode_cmd.width = sizes->surface_width;
128 mode_cmd.height = sizes->surface_height;
130 mode_cmd.pitches[0] = ALIGN(mode_cmd.width *
131 DIV_ROUND_UP(sizes->surface_bpp, 8), 64);
132 mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
133 sizes->surface_depth);
135 size = mode_cmd.pitches[0] * mode_cmd.height;
136 size = PAGE_ALIGN(size);
138 /* If the FB is too big, just don't use it since fbdev is not very
139 * important and we should probably use that space with FBC or other
142 if (size * 2 < ggtt->stolen_usable_size)
143 obj = i915_gem_object_create_stolen(dev_priv, size);
145 obj = i915_gem_object_create(dev_priv, size);
147 DRM_ERROR("failed to allocate framebuffer\n");
152 fb = intel_framebuffer_create(obj, &mode_cmd);
158 ifbdev->fb = to_intel_framebuffer(fb);
163 i915_gem_object_put(obj);
168 static int intelfb_create(struct drm_fb_helper *helper,
169 struct drm_fb_helper_surface_size *sizes)
171 struct intel_fbdev *ifbdev =
172 container_of(helper, struct intel_fbdev, helper);
173 struct intel_framebuffer *intel_fb = ifbdev->fb;
174 struct drm_device *dev = helper->dev;
175 struct drm_i915_private *dev_priv = to_i915(dev);
176 struct pci_dev *pdev = dev_priv->drm.pdev;
177 struct i915_ggtt *ggtt = &dev_priv->ggtt;
178 struct fb_info *info;
179 struct drm_framebuffer *fb;
180 struct i915_vma *vma;
181 bool prealloc = false;
186 (sizes->fb_width > intel_fb->base.width ||
187 sizes->fb_height > intel_fb->base.height)) {
188 DRM_DEBUG_KMS("BIOS fb too small (%dx%d), we require (%dx%d),"
190 intel_fb->base.width, intel_fb->base.height,
191 sizes->fb_width, sizes->fb_height);
192 drm_framebuffer_put(&intel_fb->base);
193 intel_fb = ifbdev->fb = NULL;
195 if (!intel_fb || WARN_ON(!intel_fb->obj)) {
196 DRM_DEBUG_KMS("no BIOS fb, allocating a new one\n");
197 ret = intelfb_alloc(helper, sizes);
200 intel_fb = ifbdev->fb;
202 DRM_DEBUG_KMS("re-using BIOS fb\n");
204 sizes->fb_width = intel_fb->base.width;
205 sizes->fb_height = intel_fb->base.height;
208 mutex_lock(&dev->struct_mutex);
209 intel_runtime_pm_get(dev_priv);
211 /* Pin the GGTT vma for our access via info->screen_base.
212 * This also validates that any existing fb inherited from the
213 * BIOS is suitable for own access.
215 vma = intel_pin_and_fence_fb_obj(&ifbdev->fb->base, DRM_MODE_ROTATE_0);
221 info = drm_fb_helper_alloc_fbi(helper);
223 DRM_ERROR("Failed to allocate fb_info\n");
230 fb = &ifbdev->fb->base;
232 ifbdev->helper.fb = fb;
234 strcpy(info->fix.id, "inteldrmfb");
236 info->fbops = &intelfb_ops;
238 /* setup aperture base/size for vesafb takeover */
239 info->apertures->ranges[0].base = dev->mode_config.fb_base;
240 info->apertures->ranges[0].size = ggtt->mappable_end;
242 info->fix.smem_start = dev->mode_config.fb_base + i915_ggtt_offset(vma);
243 info->fix.smem_len = vma->node.size;
245 vaddr = i915_vma_pin_iomap(vma);
247 DRM_ERROR("Failed to remap framebuffer into virtual memory\n");
248 ret = PTR_ERR(vaddr);
251 info->screen_base = vaddr;
252 info->screen_size = vma->node.size;
254 /* This driver doesn't need a VT switch to restore the mode on resume */
255 info->skip_vt_switch = true;
257 drm_fb_helper_fill_fix(info, fb->pitches[0], fb->format->depth);
258 drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height);
260 /* If the object is shmemfs backed, it will have given us zeroed pages.
261 * If the object is stolen however, it will be full of whatever
262 * garbage was left in there.
264 if (intel_fb->obj->stolen && !prealloc)
265 memset_io(info->screen_base, 0, info->screen_size);
267 /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
269 DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x\n",
270 fb->width, fb->height, i915_ggtt_offset(vma));
273 intel_runtime_pm_put(dev_priv);
274 mutex_unlock(&dev->struct_mutex);
275 vga_switcheroo_client_fb_set(pdev, info);
279 intel_unpin_fb_vma(vma);
281 intel_runtime_pm_put(dev_priv);
282 mutex_unlock(&dev->struct_mutex);
286 static struct drm_fb_helper_crtc *
287 intel_fb_helper_crtc(struct drm_fb_helper *fb_helper, struct drm_crtc *crtc)
291 for (i = 0; i < fb_helper->crtc_count; i++)
292 if (fb_helper->crtc_info[i].mode_set.crtc == crtc)
293 return &fb_helper->crtc_info[i];
299 * Try to read the BIOS display configuration and use it for the initial
302 * The BIOS or boot loader will generally create an initial display
303 * configuration for us that includes some set of active pipes and displays.
304 * This routine tries to figure out which pipes and connectors are active
305 * and stuffs them into the crtcs and modes array given to us by the
306 * drm_fb_helper code.
308 * The overall sequence is:
309 * intel_fbdev_init - from driver load
310 * intel_fbdev_init_bios - initialize the intel_fbdev using BIOS data
311 * drm_fb_helper_init - build fb helper structs
312 * drm_fb_helper_single_add_all_connectors - more fb helper structs
313 * intel_fbdev_initial_config - apply the config
314 * drm_fb_helper_initial_config - call ->probe then register_framebuffer()
315 * drm_setup_crtcs - build crtc config for fbdev
316 * intel_fb_initial_config - find active connectors etc
317 * drm_fb_helper_single_fb_probe - set up fbdev
318 * intelfb_create - re-use or alloc fb, build out fbdev structs
320 * Note that we don't make special consideration whether we could actually
321 * switch to the selected modes without a full modeset. E.g. when the display
322 * is in VGA mode we need to recalculate watermarks and set a new high-res
323 * framebuffer anyway.
325 static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper,
326 struct drm_fb_helper_crtc **crtcs,
327 struct drm_display_mode **modes,
328 struct drm_fb_offset *offsets,
329 bool *enabled, int width, int height)
331 struct drm_i915_private *dev_priv = to_i915(fb_helper->dev);
332 unsigned long conn_configured, conn_seq, mask;
333 unsigned int count = min(fb_helper->connector_count, BITS_PER_LONG);
336 bool fallback = true, ret = true;
337 int num_connectors_enabled = 0;
338 int num_connectors_detected = 0;
339 struct drm_modeset_acquire_ctx ctx;
341 save_enabled = kcalloc(count, sizeof(bool), GFP_KERNEL);
345 drm_modeset_acquire_init(&ctx, 0);
347 while (drm_modeset_lock_all_ctx(fb_helper->dev, &ctx) != 0)
348 drm_modeset_backoff(&ctx);
350 memcpy(save_enabled, enabled, count);
351 mask = GENMASK(count - 1, 0);
354 conn_seq = conn_configured;
355 for (i = 0; i < count; i++) {
356 struct drm_fb_helper_connector *fb_conn;
357 struct drm_connector *connector;
358 struct drm_encoder *encoder;
359 struct drm_fb_helper_crtc *new_crtc;
361 fb_conn = fb_helper->connector_info[i];
362 connector = fb_conn->connector;
364 if (conn_configured & BIT(i))
367 if (conn_seq == 0 && !connector->has_tile)
370 if (connector->status == connector_status_connected)
371 num_connectors_detected++;
374 DRM_DEBUG_KMS("connector %s not enabled, skipping\n",
376 conn_configured |= BIT(i);
380 if (connector->force == DRM_FORCE_OFF) {
381 DRM_DEBUG_KMS("connector %s is disabled by user, skipping\n",
387 encoder = connector->state->best_encoder;
388 if (!encoder || WARN_ON(!connector->state->crtc)) {
389 if (connector->force > DRM_FORCE_OFF)
392 DRM_DEBUG_KMS("connector %s has no encoder or crtc, skipping\n",
395 conn_configured |= BIT(i);
399 num_connectors_enabled++;
401 new_crtc = intel_fb_helper_crtc(fb_helper,
402 connector->state->crtc);
405 * Make sure we're not trying to drive multiple connectors
406 * with a single CRTC, since our cloning support may not
409 for (j = 0; j < count; j++) {
410 if (crtcs[j] == new_crtc) {
411 DRM_DEBUG_KMS("fallback: cloned configuration\n");
416 DRM_DEBUG_KMS("looking for cmdline mode on connector %s\n",
419 /* go for command line mode first */
420 modes[i] = drm_pick_cmdline_mode(fb_conn);
422 /* try for preferred next */
424 DRM_DEBUG_KMS("looking for preferred mode on connector %s %d\n",
425 connector->name, connector->has_tile);
426 modes[i] = drm_has_preferred_mode(fb_conn, width,
430 /* No preferred mode marked by the EDID? Are there any modes? */
431 if (!modes[i] && !list_empty(&connector->modes)) {
432 DRM_DEBUG_KMS("using first mode listed on connector %s\n",
434 modes[i] = list_first_entry(&connector->modes,
435 struct drm_display_mode,
439 /* last resort: use current mode */
442 * IMPORTANT: We want to use the adjusted mode (i.e.
443 * after the panel fitter upscaling) as the initial
444 * config, not the input mode, which is what crtc->mode
445 * usually contains. But since our current
446 * code puts a mode derived from the post-pfit timings
447 * into crtc->mode this works out correctly.
449 * This is crtc->mode and not crtc->state->mode for the
450 * fastboot check to work correctly. crtc_state->mode has
451 * I915_MODE_FLAG_INHERITED, which we clear to force check
454 DRM_DEBUG_KMS("looking for current mode on connector %s\n",
456 modes[i] = &connector->state->crtc->mode;
460 DRM_DEBUG_KMS("connector %s on [CRTC:%d:%s]: %dx%d%s\n",
462 connector->state->crtc->base.id,
463 connector->state->crtc->name,
464 modes[i]->hdisplay, modes[i]->vdisplay,
465 modes[i]->flags & DRM_MODE_FLAG_INTERLACE ? "i" :"");
468 conn_configured |= BIT(i);
471 if ((conn_configured & mask) != mask && conn_configured != conn_seq)
475 * If the BIOS didn't enable everything it could, fall back to have the
476 * same user experiencing of lighting up as much as possible like the
477 * fbdev helper library.
479 if (num_connectors_enabled != num_connectors_detected &&
480 num_connectors_enabled < INTEL_INFO(dev_priv)->num_pipes) {
481 DRM_DEBUG_KMS("fallback: Not all outputs enabled\n");
482 DRM_DEBUG_KMS("Enabled: %i, detected: %i\n", num_connectors_enabled,
483 num_connectors_detected);
489 DRM_DEBUG_KMS("Not using firmware configuration\n");
490 memcpy(enabled, save_enabled, count);
494 drm_modeset_drop_locks(&ctx);
495 drm_modeset_acquire_fini(&ctx);
501 static const struct drm_fb_helper_funcs intel_fb_helper_funcs = {
502 .initial_config = intel_fb_initial_config,
503 .fb_probe = intelfb_create,
506 static void intel_fbdev_destroy(struct intel_fbdev *ifbdev)
508 /* We rely on the object-free to release the VMA pinning for
509 * the info->screen_base mmaping. Leaking the VMA is simpler than
510 * trying to rectify all the possible error paths leading here.
513 drm_fb_helper_fini(&ifbdev->helper);
516 mutex_lock(&ifbdev->helper.dev->struct_mutex);
517 intel_unpin_fb_vma(ifbdev->vma);
518 mutex_unlock(&ifbdev->helper.dev->struct_mutex);
522 drm_framebuffer_remove(&ifbdev->fb->base);
528 * Build an intel_fbdev struct using a BIOS allocated framebuffer, if possible.
529 * The core display code will have read out the current plane configuration,
530 * so we use that to figure out if there's an object for us to use as the
531 * fb, and if so, we re-use it for the fbdev configuration.
533 * Note we only support a single fb shared across pipes for boot (mostly for
534 * fbcon), so we just find the biggest and use that.
536 static bool intel_fbdev_init_bios(struct drm_device *dev,
537 struct intel_fbdev *ifbdev)
539 struct intel_framebuffer *fb = NULL;
540 struct drm_crtc *crtc;
541 struct intel_crtc *intel_crtc;
542 unsigned int max_size = 0;
544 /* Find the largest fb */
545 for_each_crtc(dev, crtc) {
546 struct drm_i915_gem_object *obj =
547 intel_fb_obj(crtc->primary->state->fb);
548 intel_crtc = to_intel_crtc(crtc);
550 if (!crtc->state->active || !obj) {
551 DRM_DEBUG_KMS("pipe %c not active or no fb, skipping\n",
552 pipe_name(intel_crtc->pipe));
556 if (obj->base.size > max_size) {
557 DRM_DEBUG_KMS("found possible fb from plane %c\n",
558 pipe_name(intel_crtc->pipe));
559 fb = to_intel_framebuffer(crtc->primary->state->fb);
560 max_size = obj->base.size;
565 DRM_DEBUG_KMS("no active fbs found, not using BIOS config\n");
569 /* Now make sure all the pipes will fit into it */
570 for_each_crtc(dev, crtc) {
571 unsigned int cur_size;
573 intel_crtc = to_intel_crtc(crtc);
575 if (!crtc->state->active) {
576 DRM_DEBUG_KMS("pipe %c not active, skipping\n",
577 pipe_name(intel_crtc->pipe));
581 DRM_DEBUG_KMS("checking plane %c for BIOS fb\n",
582 pipe_name(intel_crtc->pipe));
585 * See if the plane fb we found above will fit on this
586 * pipe. Note we need to use the selected fb's pitch and bpp
587 * rather than the current pipe's, since they differ.
589 cur_size = intel_crtc->config->base.adjusted_mode.crtc_hdisplay;
590 cur_size = cur_size * fb->base.format->cpp[0];
591 if (fb->base.pitches[0] < cur_size) {
592 DRM_DEBUG_KMS("fb not wide enough for plane %c (%d vs %d)\n",
593 pipe_name(intel_crtc->pipe),
594 cur_size, fb->base.pitches[0]);
599 cur_size = intel_crtc->config->base.adjusted_mode.crtc_vdisplay;
600 cur_size = intel_fb_align_height(&fb->base, 0, cur_size);
601 cur_size *= fb->base.pitches[0];
602 DRM_DEBUG_KMS("pipe %c area: %dx%d, bpp: %d, size: %d\n",
603 pipe_name(intel_crtc->pipe),
604 intel_crtc->config->base.adjusted_mode.crtc_hdisplay,
605 intel_crtc->config->base.adjusted_mode.crtc_vdisplay,
606 fb->base.format->cpp[0] * 8,
609 if (cur_size > max_size) {
610 DRM_DEBUG_KMS("fb not big enough for plane %c (%d vs %d)\n",
611 pipe_name(intel_crtc->pipe),
617 DRM_DEBUG_KMS("fb big enough for plane %c (%d >= %d)\n",
618 pipe_name(intel_crtc->pipe),
623 DRM_DEBUG_KMS("BIOS fb not suitable for all pipes, not using\n");
627 ifbdev->preferred_bpp = fb->base.format->cpp[0] * 8;
630 drm_framebuffer_get(&ifbdev->fb->base);
632 /* Final pass to check if any active pipes don't have fbs */
633 for_each_crtc(dev, crtc) {
634 intel_crtc = to_intel_crtc(crtc);
636 if (!crtc->state->active)
639 WARN(!crtc->primary->fb,
640 "re-used BIOS config but lost an fb on crtc %d\n",
645 DRM_DEBUG_KMS("using BIOS fb for initial console\n");
653 static void intel_fbdev_suspend_worker(struct work_struct *work)
655 intel_fbdev_set_suspend(&container_of(work,
656 struct drm_i915_private,
657 fbdev_suspend_work)->drm,
658 FBINFO_STATE_RUNNING,
662 int intel_fbdev_init(struct drm_device *dev)
664 struct drm_i915_private *dev_priv = to_i915(dev);
665 struct intel_fbdev *ifbdev;
668 if (WARN_ON(INTEL_INFO(dev_priv)->num_pipes == 0))
671 ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL);
675 drm_fb_helper_prepare(dev, &ifbdev->helper, &intel_fb_helper_funcs);
677 if (!intel_fbdev_init_bios(dev, ifbdev))
678 ifbdev->preferred_bpp = 32;
680 ret = drm_fb_helper_init(dev, &ifbdev->helper, 4);
686 dev_priv->fbdev = ifbdev;
687 INIT_WORK(&dev_priv->fbdev_suspend_work, intel_fbdev_suspend_worker);
689 drm_fb_helper_single_add_all_connectors(&ifbdev->helper);
694 static void intel_fbdev_initial_config(void *data, async_cookie_t cookie)
696 struct intel_fbdev *ifbdev = data;
698 /* Due to peculiar init order wrt to hpd handling this is separate. */
699 if (drm_fb_helper_initial_config(&ifbdev->helper,
700 ifbdev->preferred_bpp))
701 intel_fbdev_unregister(to_i915(ifbdev->helper.dev));
704 void intel_fbdev_initial_config_async(struct drm_device *dev)
706 struct intel_fbdev *ifbdev = to_i915(dev)->fbdev;
711 ifbdev->cookie = async_schedule(intel_fbdev_initial_config, ifbdev);
714 static void intel_fbdev_sync(struct intel_fbdev *ifbdev)
719 /* Only serialises with all preceding async calls, hence +1 */
720 async_synchronize_cookie(ifbdev->cookie + 1);
724 void intel_fbdev_unregister(struct drm_i915_private *dev_priv)
726 struct intel_fbdev *ifbdev = dev_priv->fbdev;
731 cancel_work_sync(&dev_priv->fbdev_suspend_work);
732 if (!current_is_async())
733 intel_fbdev_sync(ifbdev);
735 drm_fb_helper_unregister_fbi(&ifbdev->helper);
738 void intel_fbdev_fini(struct drm_i915_private *dev_priv)
740 struct intel_fbdev *ifbdev = fetch_and_zero(&dev_priv->fbdev);
745 intel_fbdev_destroy(ifbdev);
748 void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous)
750 struct drm_i915_private *dev_priv = to_i915(dev);
751 struct intel_fbdev *ifbdev = dev_priv->fbdev;
752 struct fb_info *info;
754 if (!ifbdev || !ifbdev->vma)
757 info = ifbdev->helper.fbdev;
760 /* Flush any pending work to turn the console on, and then
761 * wait to turn it off. It must be synchronous as we are
762 * about to suspend or unload the driver.
764 * Note that from within the work-handler, we cannot flush
765 * ourselves, so only flush outstanding work upon suspend!
767 if (state != FBINFO_STATE_RUNNING)
768 flush_work(&dev_priv->fbdev_suspend_work);
772 * The console lock can be pretty contented on resume due
773 * to all the printk activity. Try to keep it out of the hot
774 * path of resume if possible.
776 WARN_ON(state != FBINFO_STATE_RUNNING);
777 if (!console_trylock()) {
778 /* Don't block our own workqueue as this can
779 * be run in parallel with other i915.ko tasks.
781 schedule_work(&dev_priv->fbdev_suspend_work);
786 /* On resume from hibernation: If the object is shmemfs backed, it has
787 * been restored from swap. If the object is stolen however, it will be
788 * full of whatever garbage was left in there.
790 if (state == FBINFO_STATE_RUNNING && ifbdev->fb->obj->stolen)
791 memset_io(info->screen_base, 0, info->screen_size);
793 drm_fb_helper_set_suspend(&ifbdev->helper, state);
797 void intel_fbdev_output_poll_changed(struct drm_device *dev)
799 struct intel_fbdev *ifbdev = to_i915(dev)->fbdev;
804 intel_fbdev_sync(ifbdev);
806 drm_fb_helper_hotplug_event(&ifbdev->helper);
809 void intel_fbdev_restore_mode(struct drm_device *dev)
811 struct intel_fbdev *ifbdev = to_i915(dev)->fbdev;
816 intel_fbdev_sync(ifbdev);
820 if (drm_fb_helper_restore_fbdev_mode_unlocked(&ifbdev->helper) == 0)
821 intel_fbdev_invalidate(ifbdev);