2 * Copyright (C) 2013 Red Hat
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published by
7 * the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program. If not, see <http://www.gnu.org/licenses/>.
22 static void msm_fb_output_poll_changed(struct drm_device *dev)
24 #ifdef CONFIG_DRM_MSM_FBDEV
25 struct msm_drm_private *priv = dev->dev_private;
27 drm_fb_helper_hotplug_event(priv->fbdev);
31 static const struct drm_mode_config_funcs mode_config_funcs = {
32 .fb_create = msm_framebuffer_create,
33 .output_poll_changed = msm_fb_output_poll_changed,
34 .atomic_check = msm_atomic_check,
35 .atomic_commit = msm_atomic_commit,
38 int msm_register_mmu(struct drm_device *dev, struct msm_mmu *mmu)
40 struct msm_drm_private *priv = dev->dev_private;
41 int idx = priv->num_mmus++;
43 if (WARN_ON(idx >= ARRAY_SIZE(priv->mmus)))
46 priv->mmus[idx] = mmu;
51 #ifdef CONFIG_DRM_MSM_REGISTER_LOGGING
52 static bool reglog = false;
53 MODULE_PARM_DESC(reglog, "Enable register read/write logging");
54 module_param(reglog, bool, 0600);
59 #ifdef CONFIG_DRM_MSM_FBDEV
60 static bool fbdev = true;
61 MODULE_PARM_DESC(fbdev, "Enable fbdev compat layer");
62 module_param(fbdev, bool, 0600);
65 static char *vram = "16m";
66 MODULE_PARM_DESC(vram, "Configure VRAM size (for devices without IOMMU/GPUMMU");
67 module_param(vram, charp, 0);
73 void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
81 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name);
83 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
86 dev_err(&pdev->dev, "failed to get memory resource: %s\n", name);
87 return ERR_PTR(-EINVAL);
90 size = resource_size(res);
92 ptr = devm_ioremap_nocache(&pdev->dev, res->start, size);
94 dev_err(&pdev->dev, "failed to ioremap: %s\n", name);
95 return ERR_PTR(-ENOMEM);
99 printk(KERN_DEBUG "IO:region %s %p %08lx\n", dbgname, ptr, size);
104 void msm_writel(u32 data, void __iomem *addr)
107 printk(KERN_DEBUG "IO:W %p %08x\n", addr, data);
111 u32 msm_readl(const void __iomem *addr)
113 u32 val = readl(addr);
115 printk(KERN_ERR "IO:R %p %08x\n", addr, val);
119 struct vblank_event {
120 struct list_head node;
125 static void vblank_ctrl_worker(struct work_struct *work)
127 struct msm_vblank_ctrl *vbl_ctrl = container_of(work,
128 struct msm_vblank_ctrl, work);
129 struct msm_drm_private *priv = container_of(vbl_ctrl,
130 struct msm_drm_private, vblank_ctrl);
131 struct msm_kms *kms = priv->kms;
132 struct vblank_event *vbl_ev, *tmp;
135 spin_lock_irqsave(&vbl_ctrl->lock, flags);
136 list_for_each_entry_safe(vbl_ev, tmp, &vbl_ctrl->event_list, node) {
137 list_del(&vbl_ev->node);
138 spin_unlock_irqrestore(&vbl_ctrl->lock, flags);
141 kms->funcs->enable_vblank(kms,
142 priv->crtcs[vbl_ev->crtc_id]);
144 kms->funcs->disable_vblank(kms,
145 priv->crtcs[vbl_ev->crtc_id]);
149 spin_lock_irqsave(&vbl_ctrl->lock, flags);
152 spin_unlock_irqrestore(&vbl_ctrl->lock, flags);
155 static int vblank_ctrl_queue_work(struct msm_drm_private *priv,
156 int crtc_id, bool enable)
158 struct msm_vblank_ctrl *vbl_ctrl = &priv->vblank_ctrl;
159 struct vblank_event *vbl_ev;
162 vbl_ev = kzalloc(sizeof(*vbl_ev), GFP_ATOMIC);
166 vbl_ev->crtc_id = crtc_id;
167 vbl_ev->enable = enable;
169 spin_lock_irqsave(&vbl_ctrl->lock, flags);
170 list_add_tail(&vbl_ev->node, &vbl_ctrl->event_list);
171 spin_unlock_irqrestore(&vbl_ctrl->lock, flags);
173 queue_work(priv->wq, &vbl_ctrl->work);
182 static int msm_unload(struct drm_device *dev)
184 struct msm_drm_private *priv = dev->dev_private;
185 struct msm_kms *kms = priv->kms;
186 struct msm_gpu *gpu = priv->gpu;
187 struct msm_vblank_ctrl *vbl_ctrl = &priv->vblank_ctrl;
188 struct vblank_event *vbl_ev, *tmp;
190 /* We must cancel and cleanup any pending vblank enable/disable
191 * work before drm_irq_uninstall() to avoid work re-enabling an
192 * irq after uninstall has disabled it.
194 cancel_work_sync(&vbl_ctrl->work);
195 list_for_each_entry_safe(vbl_ev, tmp, &vbl_ctrl->event_list, node) {
196 list_del(&vbl_ev->node);
200 drm_kms_helper_poll_fini(dev);
201 drm_mode_config_cleanup(dev);
202 drm_vblank_cleanup(dev);
204 pm_runtime_get_sync(dev->dev);
205 drm_irq_uninstall(dev);
206 pm_runtime_put_sync(dev->dev);
208 flush_workqueue(priv->wq);
209 destroy_workqueue(priv->wq);
212 pm_runtime_disable(dev->dev);
213 kms->funcs->destroy(kms);
217 mutex_lock(&dev->struct_mutex);
218 gpu->funcs->pm_suspend(gpu);
219 mutex_unlock(&dev->struct_mutex);
220 gpu->funcs->destroy(gpu);
223 if (priv->vram.paddr) {
224 DEFINE_DMA_ATTRS(attrs);
225 dma_set_attr(DMA_ATTR_NO_KERNEL_MAPPING, &attrs);
226 drm_mm_takedown(&priv->vram.mm);
227 dma_free_attrs(dev->dev, priv->vram.size, NULL,
228 priv->vram.paddr, &attrs);
231 component_unbind_all(dev->dev, dev);
233 dev->dev_private = NULL;
240 static int get_mdp_ver(struct platform_device *pdev)
243 static const struct of_device_id match_types[] = { {
244 .compatible = "qcom,mdss_mdp",
249 struct device *dev = &pdev->dev;
250 const struct of_device_id *match;
251 match = of_match_node(match_types, dev->of_node);
253 return (int)(unsigned long)match->data;
258 #include <linux/of_address.h>
260 static int msm_init_vram(struct drm_device *dev)
262 struct msm_drm_private *priv = dev->dev_private;
263 unsigned long size = 0;
267 /* In the device-tree world, we could have a 'memory-region'
268 * phandle, which gives us a link to our "vram". Allocating
269 * is all nicely abstracted behind the dma api, but we need
270 * to know the entire size to allocate it all in one go. There
272 * 1) device with no IOMMU, in which case we need exclusive
273 * access to a VRAM carveout big enough for all gpu
275 * 2) device with IOMMU, but where the bootloader puts up
276 * a splash screen. In this case, the VRAM carveout
277 * need only be large enough for fbdev fb. But we need
278 * exclusive access to the buffer to avoid the kernel
279 * using those pages for other purposes (which appears
280 * as corruption on screen before we have a chance to
281 * load and do initial modeset)
283 struct device_node *node;
285 node = of_parse_phandle(dev->dev->of_node, "memory-region", 0);
288 ret = of_address_to_resource(node, 0, &r);
291 size = r.end - r.start;
292 DRM_INFO("using VRAM carveout: %lx@%pa\n", size, &r.start);
296 /* if we have no IOMMU, then we need to use carveout allocator.
297 * Grab the entire CMA chunk carved out in early startup in
300 if (!iommu_present(&platform_bus_type)) {
301 DRM_INFO("using %s VRAM carveout\n", vram);
302 size = memparse(vram, NULL);
306 DEFINE_DMA_ATTRS(attrs);
309 priv->vram.size = size;
311 drm_mm_init(&priv->vram.mm, 0, (size >> PAGE_SHIFT) - 1);
313 dma_set_attr(DMA_ATTR_NO_KERNEL_MAPPING, &attrs);
314 dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs);
316 /* note that for no-kernel-mapping, the vaddr returned
317 * is bogus, but non-null if allocation succeeded:
319 p = dma_alloc_attrs(dev->dev, size,
320 &priv->vram.paddr, GFP_KERNEL, &attrs);
322 dev_err(dev->dev, "failed to allocate VRAM\n");
323 priv->vram.paddr = 0;
327 dev_info(dev->dev, "VRAM: %08x->%08x\n",
328 (uint32_t)priv->vram.paddr,
329 (uint32_t)(priv->vram.paddr + size));
335 static int msm_load(struct drm_device *dev, unsigned long flags)
337 struct platform_device *pdev = dev->platformdev;
338 struct msm_drm_private *priv;
342 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
344 dev_err(dev->dev, "failed to allocate private data\n");
348 dev->dev_private = priv;
350 priv->wq = alloc_ordered_workqueue("msm", 0);
351 init_waitqueue_head(&priv->fence_event);
352 init_waitqueue_head(&priv->pending_crtcs_event);
354 INIT_LIST_HEAD(&priv->inactive_list);
355 INIT_LIST_HEAD(&priv->fence_cbs);
356 INIT_LIST_HEAD(&priv->vblank_ctrl.event_list);
357 INIT_WORK(&priv->vblank_ctrl.work, vblank_ctrl_worker);
358 spin_lock_init(&priv->vblank_ctrl.lock);
360 drm_mode_config_init(dev);
362 platform_set_drvdata(pdev, dev);
364 /* Bind all our sub-components: */
365 ret = component_bind_all(dev->dev, dev);
369 ret = msm_init_vram(dev);
373 switch (get_mdp_ver(pdev)) {
375 kms = mdp4_kms_init(dev);
378 kms = mdp5_kms_init(dev);
381 kms = ERR_PTR(-ENODEV);
387 * NOTE: once we have GPU support, having no kms should not
388 * be considered fatal.. ideally we would still support gpu
389 * and (for example) use dmabuf/prime to share buffers with
390 * imx drm driver on iMX5
392 dev_err(dev->dev, "failed to load kms\n");
400 pm_runtime_enable(dev->dev);
401 ret = kms->funcs->hw_init(kms);
403 dev_err(dev->dev, "kms hw init failed: %d\n", ret);
408 dev->mode_config.funcs = &mode_config_funcs;
410 ret = drm_vblank_init(dev, priv->num_crtcs);
412 dev_err(dev->dev, "failed to initialize vblank\n");
416 pm_runtime_get_sync(dev->dev);
417 ret = drm_irq_install(dev, platform_get_irq(dev->platformdev, 0));
418 pm_runtime_put_sync(dev->dev);
420 dev_err(dev->dev, "failed to install IRQ handler\n");
424 drm_mode_config_reset(dev);
426 #ifdef CONFIG_DRM_MSM_FBDEV
428 priv->fbdev = msm_fbdev_init(dev);
431 ret = msm_debugfs_late_init(dev);
435 drm_kms_helper_poll_init(dev);
444 static void load_gpu(struct drm_device *dev)
446 static DEFINE_MUTEX(init_lock);
447 struct msm_drm_private *priv = dev->dev_private;
449 mutex_lock(&init_lock);
452 priv->gpu = adreno_load_gpu(dev);
454 mutex_unlock(&init_lock);
457 static int msm_open(struct drm_device *dev, struct drm_file *file)
459 struct msm_file_private *ctx;
461 /* For now, load gpu on open.. to avoid the requirement of having
462 * firmware in the initrd.
466 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
470 file->driver_priv = ctx;
475 static void msm_preclose(struct drm_device *dev, struct drm_file *file)
477 struct msm_drm_private *priv = dev->dev_private;
478 struct msm_file_private *ctx = file->driver_priv;
479 struct msm_kms *kms = priv->kms;
482 kms->funcs->preclose(kms, file);
484 mutex_lock(&dev->struct_mutex);
485 if (ctx == priv->lastctx)
486 priv->lastctx = NULL;
487 mutex_unlock(&dev->struct_mutex);
492 static void msm_lastclose(struct drm_device *dev)
494 #ifdef CONFIG_DRM_MSM_FBDEV
495 struct msm_drm_private *priv = dev->dev_private;
497 drm_fb_helper_restore_fbdev_mode_unlocked(priv->fbdev);
501 static irqreturn_t msm_irq(int irq, void *arg)
503 struct drm_device *dev = arg;
504 struct msm_drm_private *priv = dev->dev_private;
505 struct msm_kms *kms = priv->kms;
507 return kms->funcs->irq(kms);
510 static void msm_irq_preinstall(struct drm_device *dev)
512 struct msm_drm_private *priv = dev->dev_private;
513 struct msm_kms *kms = priv->kms;
515 kms->funcs->irq_preinstall(kms);
518 static int msm_irq_postinstall(struct drm_device *dev)
520 struct msm_drm_private *priv = dev->dev_private;
521 struct msm_kms *kms = priv->kms;
523 return kms->funcs->irq_postinstall(kms);
526 static void msm_irq_uninstall(struct drm_device *dev)
528 struct msm_drm_private *priv = dev->dev_private;
529 struct msm_kms *kms = priv->kms;
531 kms->funcs->irq_uninstall(kms);
534 static int msm_enable_vblank(struct drm_device *dev, int crtc_id)
536 struct msm_drm_private *priv = dev->dev_private;
537 struct msm_kms *kms = priv->kms;
540 DBG("dev=%p, crtc=%d", dev, crtc_id);
541 return vblank_ctrl_queue_work(priv, crtc_id, true);
544 static void msm_disable_vblank(struct drm_device *dev, int crtc_id)
546 struct msm_drm_private *priv = dev->dev_private;
547 struct msm_kms *kms = priv->kms;
550 DBG("dev=%p, crtc=%d", dev, crtc_id);
551 vblank_ctrl_queue_work(priv, crtc_id, false);
558 #ifdef CONFIG_DEBUG_FS
559 static int msm_gpu_show(struct drm_device *dev, struct seq_file *m)
561 struct msm_drm_private *priv = dev->dev_private;
562 struct msm_gpu *gpu = priv->gpu;
565 seq_printf(m, "%s Status:\n", gpu->name);
566 gpu->funcs->show(gpu, m);
572 static int msm_gem_show(struct drm_device *dev, struct seq_file *m)
574 struct msm_drm_private *priv = dev->dev_private;
575 struct msm_gpu *gpu = priv->gpu;
578 seq_printf(m, "Active Objects (%s):\n", gpu->name);
579 msm_gem_describe_objects(&gpu->active_list, m);
582 seq_printf(m, "Inactive Objects:\n");
583 msm_gem_describe_objects(&priv->inactive_list, m);
588 static int msm_mm_show(struct drm_device *dev, struct seq_file *m)
590 return drm_mm_dump_table(m, &dev->vma_offset_manager->vm_addr_space_mm);
593 static int msm_fb_show(struct drm_device *dev, struct seq_file *m)
595 struct msm_drm_private *priv = dev->dev_private;
596 struct drm_framebuffer *fb, *fbdev_fb = NULL;
599 seq_printf(m, "fbcon ");
600 fbdev_fb = priv->fbdev->fb;
601 msm_framebuffer_describe(fbdev_fb, m);
604 mutex_lock(&dev->mode_config.fb_lock);
605 list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
609 seq_printf(m, "user ");
610 msm_framebuffer_describe(fb, m);
612 mutex_unlock(&dev->mode_config.fb_lock);
617 static int show_locked(struct seq_file *m, void *arg)
619 struct drm_info_node *node = (struct drm_info_node *) m->private;
620 struct drm_device *dev = node->minor->dev;
621 int (*show)(struct drm_device *dev, struct seq_file *m) =
622 node->info_ent->data;
625 ret = mutex_lock_interruptible(&dev->struct_mutex);
631 mutex_unlock(&dev->struct_mutex);
636 static struct drm_info_list msm_debugfs_list[] = {
637 {"gpu", show_locked, 0, msm_gpu_show},
638 {"gem", show_locked, 0, msm_gem_show},
639 { "mm", show_locked, 0, msm_mm_show },
640 { "fb", show_locked, 0, msm_fb_show },
643 static int late_init_minor(struct drm_minor *minor)
650 ret = msm_rd_debugfs_init(minor);
652 dev_err(minor->dev->dev, "could not install rd debugfs\n");
656 ret = msm_perf_debugfs_init(minor);
658 dev_err(minor->dev->dev, "could not install perf debugfs\n");
665 int msm_debugfs_late_init(struct drm_device *dev)
668 ret = late_init_minor(dev->primary);
671 ret = late_init_minor(dev->render);
674 ret = late_init_minor(dev->control);
678 static int msm_debugfs_init(struct drm_minor *minor)
680 struct drm_device *dev = minor->dev;
683 ret = drm_debugfs_create_files(msm_debugfs_list,
684 ARRAY_SIZE(msm_debugfs_list),
685 minor->debugfs_root, minor);
688 dev_err(dev->dev, "could not install msm_debugfs_list\n");
695 static void msm_debugfs_cleanup(struct drm_minor *minor)
697 drm_debugfs_remove_files(msm_debugfs_list,
698 ARRAY_SIZE(msm_debugfs_list), minor);
699 if (!minor->dev->dev_private)
701 msm_rd_debugfs_cleanup(minor);
702 msm_perf_debugfs_cleanup(minor);
710 int msm_wait_fence(struct drm_device *dev, uint32_t fence,
711 ktime_t *timeout , bool interruptible)
713 struct msm_drm_private *priv = dev->dev_private;
719 if (fence > priv->gpu->submitted_fence) {
720 DRM_ERROR("waiting on invalid fence: %u (of %u)\n",
721 fence, priv->gpu->submitted_fence);
727 ret = fence_completed(dev, fence) ? 0 : -EBUSY;
729 ktime_t now = ktime_get();
730 unsigned long remaining_jiffies;
732 if (ktime_compare(*timeout, now) < 0) {
733 remaining_jiffies = 0;
735 ktime_t rem = ktime_sub(*timeout, now);
736 struct timespec ts = ktime_to_timespec(rem);
737 remaining_jiffies = timespec_to_jiffies(&ts);
741 ret = wait_event_interruptible_timeout(priv->fence_event,
742 fence_completed(dev, fence),
745 ret = wait_event_timeout(priv->fence_event,
746 fence_completed(dev, fence),
750 DBG("timeout waiting for fence: %u (completed: %u)",
751 fence, priv->completed_fence);
753 } else if (ret != -ERESTARTSYS) {
761 int msm_queue_fence_cb(struct drm_device *dev,
762 struct msm_fence_cb *cb, uint32_t fence)
764 struct msm_drm_private *priv = dev->dev_private;
767 mutex_lock(&dev->struct_mutex);
768 if (!list_empty(&cb->work.entry)) {
770 } else if (fence > priv->completed_fence) {
772 list_add_tail(&cb->work.entry, &priv->fence_cbs);
774 queue_work(priv->wq, &cb->work);
776 mutex_unlock(&dev->struct_mutex);
781 /* called from workqueue */
782 void msm_update_fence(struct drm_device *dev, uint32_t fence)
784 struct msm_drm_private *priv = dev->dev_private;
786 mutex_lock(&dev->struct_mutex);
787 priv->completed_fence = max(fence, priv->completed_fence);
789 while (!list_empty(&priv->fence_cbs)) {
790 struct msm_fence_cb *cb;
792 cb = list_first_entry(&priv->fence_cbs,
793 struct msm_fence_cb, work.entry);
795 if (cb->fence > priv->completed_fence)
798 list_del_init(&cb->work.entry);
799 queue_work(priv->wq, &cb->work);
802 mutex_unlock(&dev->struct_mutex);
804 wake_up_all(&priv->fence_event);
807 void __msm_fence_worker(struct work_struct *work)
809 struct msm_fence_cb *cb = container_of(work, struct msm_fence_cb, work);
817 static int msm_ioctl_get_param(struct drm_device *dev, void *data,
818 struct drm_file *file)
820 struct msm_drm_private *priv = dev->dev_private;
821 struct drm_msm_param *args = data;
824 /* for now, we just have 3d pipe.. eventually this would need to
825 * be more clever to dispatch to appropriate gpu module:
827 if (args->pipe != MSM_PIPE_3D0)
835 return gpu->funcs->get_param(gpu, args->param, &args->value);
838 static int msm_ioctl_gem_new(struct drm_device *dev, void *data,
839 struct drm_file *file)
841 struct drm_msm_gem_new *args = data;
843 if (args->flags & ~MSM_BO_FLAGS) {
844 DRM_ERROR("invalid flags: %08x\n", args->flags);
848 return msm_gem_new_handle(dev, file, args->size,
849 args->flags, &args->handle);
852 static inline ktime_t to_ktime(struct drm_msm_timespec timeout)
854 return ktime_set(timeout.tv_sec, timeout.tv_nsec);
857 static int msm_ioctl_gem_cpu_prep(struct drm_device *dev, void *data,
858 struct drm_file *file)
860 struct drm_msm_gem_cpu_prep *args = data;
861 struct drm_gem_object *obj;
862 ktime_t timeout = to_ktime(args->timeout);
865 if (args->op & ~MSM_PREP_FLAGS) {
866 DRM_ERROR("invalid op: %08x\n", args->op);
870 obj = drm_gem_object_lookup(dev, file, args->handle);
874 ret = msm_gem_cpu_prep(obj, args->op, &timeout);
876 drm_gem_object_unreference_unlocked(obj);
881 static int msm_ioctl_gem_cpu_fini(struct drm_device *dev, void *data,
882 struct drm_file *file)
884 struct drm_msm_gem_cpu_fini *args = data;
885 struct drm_gem_object *obj;
888 obj = drm_gem_object_lookup(dev, file, args->handle);
892 ret = msm_gem_cpu_fini(obj);
894 drm_gem_object_unreference_unlocked(obj);
899 static int msm_ioctl_gem_info(struct drm_device *dev, void *data,
900 struct drm_file *file)
902 struct drm_msm_gem_info *args = data;
903 struct drm_gem_object *obj;
909 obj = drm_gem_object_lookup(dev, file, args->handle);
913 args->offset = msm_gem_mmap_offset(obj);
915 drm_gem_object_unreference_unlocked(obj);
920 static int msm_ioctl_wait_fence(struct drm_device *dev, void *data,
921 struct drm_file *file)
923 struct drm_msm_wait_fence *args = data;
924 ktime_t timeout = to_ktime(args->timeout);
927 DRM_ERROR("invalid pad: %08x\n", args->pad);
931 return msm_wait_fence(dev, args->fence, &timeout, true);
934 static const struct drm_ioctl_desc msm_ioctls[] = {
935 DRM_IOCTL_DEF_DRV(MSM_GET_PARAM, msm_ioctl_get_param, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
936 DRM_IOCTL_DEF_DRV(MSM_GEM_NEW, msm_ioctl_gem_new, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
937 DRM_IOCTL_DEF_DRV(MSM_GEM_INFO, msm_ioctl_gem_info, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
938 DRM_IOCTL_DEF_DRV(MSM_GEM_CPU_PREP, msm_ioctl_gem_cpu_prep, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
939 DRM_IOCTL_DEF_DRV(MSM_GEM_CPU_FINI, msm_ioctl_gem_cpu_fini, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
940 DRM_IOCTL_DEF_DRV(MSM_GEM_SUBMIT, msm_ioctl_gem_submit, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
941 DRM_IOCTL_DEF_DRV(MSM_WAIT_FENCE, msm_ioctl_wait_fence, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
944 static const struct vm_operations_struct vm_ops = {
945 .fault = msm_gem_fault,
946 .open = drm_gem_vm_open,
947 .close = drm_gem_vm_close,
950 static const struct file_operations fops = {
951 .owner = THIS_MODULE,
953 .release = drm_release,
954 .unlocked_ioctl = drm_ioctl,
956 .compat_ioctl = drm_compat_ioctl,
961 .mmap = msm_gem_mmap,
964 static struct drm_driver msm_driver = {
965 .driver_features = DRIVER_HAVE_IRQ |
972 .unload = msm_unload,
974 .preclose = msm_preclose,
975 .lastclose = msm_lastclose,
976 .set_busid = drm_platform_set_busid,
977 .irq_handler = msm_irq,
978 .irq_preinstall = msm_irq_preinstall,
979 .irq_postinstall = msm_irq_postinstall,
980 .irq_uninstall = msm_irq_uninstall,
981 .get_vblank_counter = drm_vblank_count,
982 .enable_vblank = msm_enable_vblank,
983 .disable_vblank = msm_disable_vblank,
984 .gem_free_object = msm_gem_free_object,
985 .gem_vm_ops = &vm_ops,
986 .dumb_create = msm_gem_dumb_create,
987 .dumb_map_offset = msm_gem_dumb_map_offset,
988 .dumb_destroy = drm_gem_dumb_destroy,
989 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
990 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
991 .gem_prime_export = drm_gem_prime_export,
992 .gem_prime_import = drm_gem_prime_import,
993 .gem_prime_pin = msm_gem_prime_pin,
994 .gem_prime_unpin = msm_gem_prime_unpin,
995 .gem_prime_get_sg_table = msm_gem_prime_get_sg_table,
996 .gem_prime_import_sg_table = msm_gem_prime_import_sg_table,
997 .gem_prime_vmap = msm_gem_prime_vmap,
998 .gem_prime_vunmap = msm_gem_prime_vunmap,
999 .gem_prime_mmap = msm_gem_prime_mmap,
1000 #ifdef CONFIG_DEBUG_FS
1001 .debugfs_init = msm_debugfs_init,
1002 .debugfs_cleanup = msm_debugfs_cleanup,
1004 .ioctls = msm_ioctls,
1005 .num_ioctls = DRM_MSM_NUM_IOCTLS,
1008 .desc = "MSM Snapdragon DRM",
1014 #ifdef CONFIG_PM_SLEEP
1015 static int msm_pm_suspend(struct device *dev)
1017 struct drm_device *ddev = dev_get_drvdata(dev);
1019 drm_kms_helper_poll_disable(ddev);
1024 static int msm_pm_resume(struct device *dev)
1026 struct drm_device *ddev = dev_get_drvdata(dev);
1028 drm_kms_helper_poll_enable(ddev);
1034 static const struct dev_pm_ops msm_pm_ops = {
1035 SET_SYSTEM_SLEEP_PM_OPS(msm_pm_suspend, msm_pm_resume)
1039 * Componentized driver support:
1043 /* NOTE: the CONFIG_OF case duplicates the same code as exynos or imx
1044 * (or probably any other).. so probably some room for some helpers
1046 static int compare_of(struct device *dev, void *data)
1048 return dev->of_node == data;
1051 static int add_components(struct device *dev, struct component_match **matchptr,
1054 struct device_node *np = dev->of_node;
1057 for (i = 0; ; i++) {
1058 struct device_node *node;
1060 node = of_parse_phandle(np, name, i);
1064 component_match_add(dev, matchptr, compare_of, node);
1070 static int compare_dev(struct device *dev, void *data)
1076 static int msm_drm_bind(struct device *dev)
1078 return drm_platform_init(&msm_driver, to_platform_device(dev));
1081 static void msm_drm_unbind(struct device *dev)
1083 drm_put_dev(platform_get_drvdata(to_platform_device(dev)));
1086 static const struct component_master_ops msm_drm_ops = {
1087 .bind = msm_drm_bind,
1088 .unbind = msm_drm_unbind,
1095 static int msm_pdev_probe(struct platform_device *pdev)
1097 struct component_match *match = NULL;
1099 add_components(&pdev->dev, &match, "connectors");
1100 add_components(&pdev->dev, &match, "gpus");
1102 /* For non-DT case, it kinda sucks. We don't actually have a way
1103 * to know whether or not we are waiting for certain devices (or if
1104 * they are simply not present). But for non-DT we only need to
1105 * care about apq8064/apq8060/etc (all mdp4/a3xx):
1107 static const char *devnames[] = {
1108 "hdmi_msm.0", "kgsl-3d0.0",
1112 DBG("Adding components..");
1114 for (i = 0; i < ARRAY_SIZE(devnames); i++) {
1117 dev = bus_find_device_by_name(&platform_bus_type,
1120 dev_info(&pdev->dev, "still waiting for %s\n", devnames[i]);
1121 return -EPROBE_DEFER;
1124 component_match_add(&pdev->dev, &match, compare_dev, dev);
1128 pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
1129 return component_master_add_with_match(&pdev->dev, &msm_drm_ops, match);
1132 static int msm_pdev_remove(struct platform_device *pdev)
1134 component_master_del(&pdev->dev, &msm_drm_ops);
1139 static const struct platform_device_id msm_id[] = {
1144 static const struct of_device_id dt_match[] = {
1145 { .compatible = "qcom,mdp" }, /* mdp4 */
1146 { .compatible = "qcom,mdss_mdp" }, /* mdp5 */
1149 MODULE_DEVICE_TABLE(of, dt_match);
1151 static struct platform_driver msm_platform_driver = {
1152 .probe = msm_pdev_probe,
1153 .remove = msm_pdev_remove,
1156 .of_match_table = dt_match,
1162 static int __init msm_drm_register(void)
1169 return platform_driver_register(&msm_platform_driver);
1172 static void __exit msm_drm_unregister(void)
1175 platform_driver_unregister(&msm_platform_driver);
1177 adreno_unregister();
1178 msm_edp_unregister();
1179 msm_dsi_unregister();
1182 module_init(msm_drm_register);
1183 module_exit(msm_drm_unregister);
1186 MODULE_DESCRIPTION("MSM DRM Driver");
1187 MODULE_LICENSE("GPL");