2 * Copyright (C) 2013 Red Hat
3 * Author: Rob Clark <robdclark@gmail.com>
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 struct msm_drm_private
*priv
= dev
->dev_private
;
26 drm_fb_helper_hotplug_event(priv
->fbdev
);
29 static const struct drm_mode_config_funcs mode_config_funcs
= {
30 .fb_create
= msm_framebuffer_create
,
31 .output_poll_changed
= msm_fb_output_poll_changed
,
32 .atomic_check
= msm_atomic_check
,
33 .atomic_commit
= msm_atomic_commit
,
36 int msm_register_mmu(struct drm_device
*dev
, struct msm_mmu
*mmu
)
38 struct msm_drm_private
*priv
= dev
->dev_private
;
39 int idx
= priv
->num_mmus
++;
41 if (WARN_ON(idx
>= ARRAY_SIZE(priv
->mmus
)))
44 priv
->mmus
[idx
] = mmu
;
49 #ifdef CONFIG_DRM_MSM_REGISTER_LOGGING
50 static bool reglog
= false;
51 MODULE_PARM_DESC(reglog
, "Enable register read/write logging");
52 module_param(reglog
, bool, 0600);
57 #ifdef CONFIG_DRM_FBDEV_EMULATION
58 static bool fbdev
= true;
59 MODULE_PARM_DESC(fbdev
, "Enable fbdev compat layer");
60 module_param(fbdev
, bool, 0600);
63 static char *vram
= "16m";
64 MODULE_PARM_DESC(vram
, "Configure VRAM size (for devices without IOMMU/GPUMMU)");
65 module_param(vram
, charp
, 0);
71 void __iomem
*msm_ioremap(struct platform_device
*pdev
, const char *name
,
79 res
= platform_get_resource_byname(pdev
, IORESOURCE_MEM
, name
);
81 res
= platform_get_resource(pdev
, IORESOURCE_MEM
, 0);
84 dev_err(&pdev
->dev
, "failed to get memory resource: %s\n", name
);
85 return ERR_PTR(-EINVAL
);
88 size
= resource_size(res
);
90 ptr
= devm_ioremap_nocache(&pdev
->dev
, res
->start
, size
);
92 dev_err(&pdev
->dev
, "failed to ioremap: %s\n", name
);
93 return ERR_PTR(-ENOMEM
);
97 printk(KERN_DEBUG
"IO:region %s %p %08lx\n", dbgname
, ptr
, size
);
102 void msm_writel(u32 data
, void __iomem
*addr
)
105 printk(KERN_DEBUG
"IO:W %p %08x\n", addr
, data
);
109 u32
msm_readl(const void __iomem
*addr
)
111 u32 val
= readl(addr
);
113 printk(KERN_ERR
"IO:R %p %08x\n", addr
, val
);
117 struct vblank_event
{
118 struct list_head node
;
123 static void vblank_ctrl_worker(struct work_struct
*work
)
125 struct msm_vblank_ctrl
*vbl_ctrl
= container_of(work
,
126 struct msm_vblank_ctrl
, work
);
127 struct msm_drm_private
*priv
= container_of(vbl_ctrl
,
128 struct msm_drm_private
, vblank_ctrl
);
129 struct msm_kms
*kms
= priv
->kms
;
130 struct vblank_event
*vbl_ev
, *tmp
;
133 spin_lock_irqsave(&vbl_ctrl
->lock
, flags
);
134 list_for_each_entry_safe(vbl_ev
, tmp
, &vbl_ctrl
->event_list
, node
) {
135 list_del(&vbl_ev
->node
);
136 spin_unlock_irqrestore(&vbl_ctrl
->lock
, flags
);
139 kms
->funcs
->enable_vblank(kms
,
140 priv
->crtcs
[vbl_ev
->crtc_id
]);
142 kms
->funcs
->disable_vblank(kms
,
143 priv
->crtcs
[vbl_ev
->crtc_id
]);
147 spin_lock_irqsave(&vbl_ctrl
->lock
, flags
);
150 spin_unlock_irqrestore(&vbl_ctrl
->lock
, flags
);
153 static int vblank_ctrl_queue_work(struct msm_drm_private
*priv
,
154 int crtc_id
, bool enable
)
156 struct msm_vblank_ctrl
*vbl_ctrl
= &priv
->vblank_ctrl
;
157 struct vblank_event
*vbl_ev
;
160 vbl_ev
= kzalloc(sizeof(*vbl_ev
), GFP_ATOMIC
);
164 vbl_ev
->crtc_id
= crtc_id
;
165 vbl_ev
->enable
= enable
;
167 spin_lock_irqsave(&vbl_ctrl
->lock
, flags
);
168 list_add_tail(&vbl_ev
->node
, &vbl_ctrl
->event_list
);
169 spin_unlock_irqrestore(&vbl_ctrl
->lock
, flags
);
171 queue_work(priv
->wq
, &vbl_ctrl
->work
);
180 static int msm_unload(struct drm_device
*dev
)
182 struct msm_drm_private
*priv
= dev
->dev_private
;
183 struct msm_kms
*kms
= priv
->kms
;
184 struct msm_gpu
*gpu
= priv
->gpu
;
185 struct msm_vblank_ctrl
*vbl_ctrl
= &priv
->vblank_ctrl
;
186 struct vblank_event
*vbl_ev
, *tmp
;
188 /* We must cancel and cleanup any pending vblank enable/disable
189 * work before drm_irq_uninstall() to avoid work re-enabling an
190 * irq after uninstall has disabled it.
192 cancel_work_sync(&vbl_ctrl
->work
);
193 list_for_each_entry_safe(vbl_ev
, tmp
, &vbl_ctrl
->event_list
, node
) {
194 list_del(&vbl_ev
->node
);
198 drm_kms_helper_poll_fini(dev
);
200 #ifdef CONFIG_DRM_FBDEV_EMULATION
201 if (fbdev
&& priv
->fbdev
)
204 drm_mode_config_cleanup(dev
);
205 drm_vblank_cleanup(dev
);
207 pm_runtime_get_sync(dev
->dev
);
208 drm_irq_uninstall(dev
);
209 pm_runtime_put_sync(dev
->dev
);
211 flush_workqueue(priv
->wq
);
212 destroy_workqueue(priv
->wq
);
215 pm_runtime_disable(dev
->dev
);
216 kms
->funcs
->destroy(kms
);
220 mutex_lock(&dev
->struct_mutex
);
221 gpu
->funcs
->pm_suspend(gpu
);
222 mutex_unlock(&dev
->struct_mutex
);
223 gpu
->funcs
->destroy(gpu
);
226 if (priv
->vram
.paddr
) {
227 DEFINE_DMA_ATTRS(attrs
);
228 dma_set_attr(DMA_ATTR_NO_KERNEL_MAPPING
, &attrs
);
229 drm_mm_takedown(&priv
->vram
.mm
);
230 dma_free_attrs(dev
->dev
, priv
->vram
.size
, NULL
,
231 priv
->vram
.paddr
, &attrs
);
234 component_unbind_all(dev
->dev
, dev
);
236 dev
->dev_private
= NULL
;
243 static int get_mdp_ver(struct platform_device
*pdev
)
245 struct device
*dev
= &pdev
->dev
;
247 return (int) (unsigned long) of_device_get_match_data(dev
);
250 #include <linux/of_address.h>
252 static int msm_init_vram(struct drm_device
*dev
)
254 struct msm_drm_private
*priv
= dev
->dev_private
;
255 struct device_node
*node
;
256 unsigned long size
= 0;
259 /* In the device-tree world, we could have a 'memory-region'
260 * phandle, which gives us a link to our "vram". Allocating
261 * is all nicely abstracted behind the dma api, but we need
262 * to know the entire size to allocate it all in one go. There
264 * 1) device with no IOMMU, in which case we need exclusive
265 * access to a VRAM carveout big enough for all gpu
267 * 2) device with IOMMU, but where the bootloader puts up
268 * a splash screen. In this case, the VRAM carveout
269 * need only be large enough for fbdev fb. But we need
270 * exclusive access to the buffer to avoid the kernel
271 * using those pages for other purposes (which appears
272 * as corruption on screen before we have a chance to
273 * load and do initial modeset)
276 node
= of_parse_phandle(dev
->dev
->of_node
, "memory-region", 0);
279 ret
= of_address_to_resource(node
, 0, &r
);
282 size
= r
.end
- r
.start
;
283 DRM_INFO("using VRAM carveout: %lx@%pa\n", size
, &r
.start
);
285 /* if we have no IOMMU, then we need to use carveout allocator.
286 * Grab the entire CMA chunk carved out in early startup in
289 } else if (!iommu_present(&platform_bus_type
)) {
290 DRM_INFO("using %s VRAM carveout\n", vram
);
291 size
= memparse(vram
, NULL
);
295 DEFINE_DMA_ATTRS(attrs
);
298 priv
->vram
.size
= size
;
300 drm_mm_init(&priv
->vram
.mm
, 0, (size
>> PAGE_SHIFT
) - 1);
302 dma_set_attr(DMA_ATTR_NO_KERNEL_MAPPING
, &attrs
);
303 dma_set_attr(DMA_ATTR_WRITE_COMBINE
, &attrs
);
305 /* note that for no-kernel-mapping, the vaddr returned
306 * is bogus, but non-null if allocation succeeded:
308 p
= dma_alloc_attrs(dev
->dev
, size
,
309 &priv
->vram
.paddr
, GFP_KERNEL
, &attrs
);
311 dev_err(dev
->dev
, "failed to allocate VRAM\n");
312 priv
->vram
.paddr
= 0;
316 dev_info(dev
->dev
, "VRAM: %08x->%08x\n",
317 (uint32_t)priv
->vram
.paddr
,
318 (uint32_t)(priv
->vram
.paddr
+ size
));
324 static int msm_load(struct drm_device
*dev
, unsigned long flags
)
326 struct platform_device
*pdev
= dev
->platformdev
;
327 struct msm_drm_private
*priv
;
331 priv
= kzalloc(sizeof(*priv
), GFP_KERNEL
);
333 dev_err(dev
->dev
, "failed to allocate private data\n");
337 dev
->dev_private
= priv
;
339 priv
->wq
= alloc_ordered_workqueue("msm", 0);
340 init_waitqueue_head(&priv
->fence_event
);
341 init_waitqueue_head(&priv
->pending_crtcs_event
);
343 INIT_LIST_HEAD(&priv
->inactive_list
);
344 INIT_LIST_HEAD(&priv
->fence_cbs
);
345 INIT_LIST_HEAD(&priv
->vblank_ctrl
.event_list
);
346 INIT_WORK(&priv
->vblank_ctrl
.work
, vblank_ctrl_worker
);
347 spin_lock_init(&priv
->vblank_ctrl
.lock
);
349 drm_mode_config_init(dev
);
351 platform_set_drvdata(pdev
, dev
);
353 /* Bind all our sub-components: */
354 ret
= component_bind_all(dev
->dev
, dev
);
358 ret
= msm_init_vram(dev
);
362 switch (get_mdp_ver(pdev
)) {
364 kms
= mdp4_kms_init(dev
);
367 kms
= mdp5_kms_init(dev
);
370 kms
= ERR_PTR(-ENODEV
);
376 * NOTE: once we have GPU support, having no kms should not
377 * be considered fatal.. ideally we would still support gpu
378 * and (for example) use dmabuf/prime to share buffers with
379 * imx drm driver on iMX5
381 dev_err(dev
->dev
, "failed to load kms\n");
389 pm_runtime_enable(dev
->dev
);
390 ret
= kms
->funcs
->hw_init(kms
);
392 dev_err(dev
->dev
, "kms hw init failed: %d\n", ret
);
397 dev
->mode_config
.funcs
= &mode_config_funcs
;
399 ret
= drm_vblank_init(dev
, priv
->num_crtcs
);
401 dev_err(dev
->dev
, "failed to initialize vblank\n");
405 pm_runtime_get_sync(dev
->dev
);
406 ret
= drm_irq_install(dev
, platform_get_irq(dev
->platformdev
, 0));
407 pm_runtime_put_sync(dev
->dev
);
409 dev_err(dev
->dev
, "failed to install IRQ handler\n");
413 drm_mode_config_reset(dev
);
415 #ifdef CONFIG_DRM_FBDEV_EMULATION
417 priv
->fbdev
= msm_fbdev_init(dev
);
420 ret
= msm_debugfs_late_init(dev
);
424 drm_kms_helper_poll_init(dev
);
433 static void load_gpu(struct drm_device
*dev
)
435 static DEFINE_MUTEX(init_lock
);
436 struct msm_drm_private
*priv
= dev
->dev_private
;
438 mutex_lock(&init_lock
);
441 priv
->gpu
= adreno_load_gpu(dev
);
443 mutex_unlock(&init_lock
);
446 static int msm_open(struct drm_device
*dev
, struct drm_file
*file
)
448 struct msm_file_private
*ctx
;
450 /* For now, load gpu on open.. to avoid the requirement of having
451 * firmware in the initrd.
455 ctx
= kzalloc(sizeof(*ctx
), GFP_KERNEL
);
459 file
->driver_priv
= ctx
;
464 static void msm_preclose(struct drm_device
*dev
, struct drm_file
*file
)
466 struct msm_drm_private
*priv
= dev
->dev_private
;
467 struct msm_file_private
*ctx
= file
->driver_priv
;
468 struct msm_kms
*kms
= priv
->kms
;
470 mutex_lock(&dev
->struct_mutex
);
471 if (ctx
== priv
->lastctx
)
472 priv
->lastctx
= NULL
;
473 mutex_unlock(&dev
->struct_mutex
);
478 static void msm_lastclose(struct drm_device
*dev
)
480 struct msm_drm_private
*priv
= dev
->dev_private
;
482 drm_fb_helper_restore_fbdev_mode_unlocked(priv
->fbdev
);
485 static irqreturn_t
msm_irq(int irq
, void *arg
)
487 struct drm_device
*dev
= arg
;
488 struct msm_drm_private
*priv
= dev
->dev_private
;
489 struct msm_kms
*kms
= priv
->kms
;
491 return kms
->funcs
->irq(kms
);
494 static void msm_irq_preinstall(struct drm_device
*dev
)
496 struct msm_drm_private
*priv
= dev
->dev_private
;
497 struct msm_kms
*kms
= priv
->kms
;
499 kms
->funcs
->irq_preinstall(kms
);
502 static int msm_irq_postinstall(struct drm_device
*dev
)
504 struct msm_drm_private
*priv
= dev
->dev_private
;
505 struct msm_kms
*kms
= priv
->kms
;
507 return kms
->funcs
->irq_postinstall(kms
);
510 static void msm_irq_uninstall(struct drm_device
*dev
)
512 struct msm_drm_private
*priv
= dev
->dev_private
;
513 struct msm_kms
*kms
= priv
->kms
;
515 kms
->funcs
->irq_uninstall(kms
);
518 static int msm_enable_vblank(struct drm_device
*dev
, unsigned int pipe
)
520 struct msm_drm_private
*priv
= dev
->dev_private
;
521 struct msm_kms
*kms
= priv
->kms
;
524 DBG("dev=%p, crtc=%u", dev
, pipe
);
525 return vblank_ctrl_queue_work(priv
, pipe
, true);
528 static void msm_disable_vblank(struct drm_device
*dev
, unsigned int pipe
)
530 struct msm_drm_private
*priv
= dev
->dev_private
;
531 struct msm_kms
*kms
= priv
->kms
;
534 DBG("dev=%p, crtc=%u", dev
, pipe
);
535 vblank_ctrl_queue_work(priv
, pipe
, false);
542 #ifdef CONFIG_DEBUG_FS
543 static int msm_gpu_show(struct drm_device
*dev
, struct seq_file
*m
)
545 struct msm_drm_private
*priv
= dev
->dev_private
;
546 struct msm_gpu
*gpu
= priv
->gpu
;
549 seq_printf(m
, "%s Status:\n", gpu
->name
);
550 gpu
->funcs
->show(gpu
, m
);
556 static int msm_gem_show(struct drm_device
*dev
, struct seq_file
*m
)
558 struct msm_drm_private
*priv
= dev
->dev_private
;
559 struct msm_gpu
*gpu
= priv
->gpu
;
562 seq_printf(m
, "Active Objects (%s):\n", gpu
->name
);
563 msm_gem_describe_objects(&gpu
->active_list
, m
);
566 seq_printf(m
, "Inactive Objects:\n");
567 msm_gem_describe_objects(&priv
->inactive_list
, m
);
572 static int msm_mm_show(struct drm_device
*dev
, struct seq_file
*m
)
574 return drm_mm_dump_table(m
, &dev
->vma_offset_manager
->vm_addr_space_mm
);
577 static int msm_fb_show(struct drm_device
*dev
, struct seq_file
*m
)
579 struct msm_drm_private
*priv
= dev
->dev_private
;
580 struct drm_framebuffer
*fb
, *fbdev_fb
= NULL
;
583 seq_printf(m
, "fbcon ");
584 fbdev_fb
= priv
->fbdev
->fb
;
585 msm_framebuffer_describe(fbdev_fb
, m
);
588 mutex_lock(&dev
->mode_config
.fb_lock
);
589 list_for_each_entry(fb
, &dev
->mode_config
.fb_list
, head
) {
593 seq_printf(m
, "user ");
594 msm_framebuffer_describe(fb
, m
);
596 mutex_unlock(&dev
->mode_config
.fb_lock
);
601 static int show_locked(struct seq_file
*m
, void *arg
)
603 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
604 struct drm_device
*dev
= node
->minor
->dev
;
605 int (*show
)(struct drm_device
*dev
, struct seq_file
*m
) =
606 node
->info_ent
->data
;
609 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
615 mutex_unlock(&dev
->struct_mutex
);
620 static struct drm_info_list msm_debugfs_list
[] = {
621 {"gpu", show_locked
, 0, msm_gpu_show
},
622 {"gem", show_locked
, 0, msm_gem_show
},
623 { "mm", show_locked
, 0, msm_mm_show
},
624 { "fb", show_locked
, 0, msm_fb_show
},
627 static int late_init_minor(struct drm_minor
*minor
)
634 ret
= msm_rd_debugfs_init(minor
);
636 dev_err(minor
->dev
->dev
, "could not install rd debugfs\n");
640 ret
= msm_perf_debugfs_init(minor
);
642 dev_err(minor
->dev
->dev
, "could not install perf debugfs\n");
649 int msm_debugfs_late_init(struct drm_device
*dev
)
652 ret
= late_init_minor(dev
->primary
);
655 ret
= late_init_minor(dev
->render
);
658 ret
= late_init_minor(dev
->control
);
662 static int msm_debugfs_init(struct drm_minor
*minor
)
664 struct drm_device
*dev
= minor
->dev
;
667 ret
= drm_debugfs_create_files(msm_debugfs_list
,
668 ARRAY_SIZE(msm_debugfs_list
),
669 minor
->debugfs_root
, minor
);
672 dev_err(dev
->dev
, "could not install msm_debugfs_list\n");
679 static void msm_debugfs_cleanup(struct drm_minor
*minor
)
681 drm_debugfs_remove_files(msm_debugfs_list
,
682 ARRAY_SIZE(msm_debugfs_list
), minor
);
683 if (!minor
->dev
->dev_private
)
685 msm_rd_debugfs_cleanup(minor
);
686 msm_perf_debugfs_cleanup(minor
);
694 int msm_wait_fence(struct drm_device
*dev
, uint32_t fence
,
695 ktime_t
*timeout
, bool interruptible
)
697 struct msm_drm_private
*priv
= dev
->dev_private
;
703 if (fence
> priv
->gpu
->submitted_fence
) {
704 DRM_ERROR("waiting on invalid fence: %u (of %u)\n",
705 fence
, priv
->gpu
->submitted_fence
);
711 ret
= fence_completed(dev
, fence
) ? 0 : -EBUSY
;
713 ktime_t now
= ktime_get();
714 unsigned long remaining_jiffies
;
716 if (ktime_compare(*timeout
, now
) < 0) {
717 remaining_jiffies
= 0;
719 ktime_t rem
= ktime_sub(*timeout
, now
);
720 struct timespec ts
= ktime_to_timespec(rem
);
721 remaining_jiffies
= timespec_to_jiffies(&ts
);
725 ret
= wait_event_interruptible_timeout(priv
->fence_event
,
726 fence_completed(dev
, fence
),
729 ret
= wait_event_timeout(priv
->fence_event
,
730 fence_completed(dev
, fence
),
734 DBG("timeout waiting for fence: %u (completed: %u)",
735 fence
, priv
->completed_fence
);
737 } else if (ret
!= -ERESTARTSYS
) {
745 int msm_queue_fence_cb(struct drm_device
*dev
,
746 struct msm_fence_cb
*cb
, uint32_t fence
)
748 struct msm_drm_private
*priv
= dev
->dev_private
;
751 mutex_lock(&dev
->struct_mutex
);
752 if (!list_empty(&cb
->work
.entry
)) {
754 } else if (fence
> priv
->completed_fence
) {
756 list_add_tail(&cb
->work
.entry
, &priv
->fence_cbs
);
758 queue_work(priv
->wq
, &cb
->work
);
760 mutex_unlock(&dev
->struct_mutex
);
765 /* called from workqueue */
766 void msm_update_fence(struct drm_device
*dev
, uint32_t fence
)
768 struct msm_drm_private
*priv
= dev
->dev_private
;
770 mutex_lock(&dev
->struct_mutex
);
771 priv
->completed_fence
= max(fence
, priv
->completed_fence
);
773 while (!list_empty(&priv
->fence_cbs
)) {
774 struct msm_fence_cb
*cb
;
776 cb
= list_first_entry(&priv
->fence_cbs
,
777 struct msm_fence_cb
, work
.entry
);
779 if (cb
->fence
> priv
->completed_fence
)
782 list_del_init(&cb
->work
.entry
);
783 queue_work(priv
->wq
, &cb
->work
);
786 mutex_unlock(&dev
->struct_mutex
);
788 wake_up_all(&priv
->fence_event
);
791 void __msm_fence_worker(struct work_struct
*work
)
793 struct msm_fence_cb
*cb
= container_of(work
, struct msm_fence_cb
, work
);
801 static int msm_ioctl_get_param(struct drm_device
*dev
, void *data
,
802 struct drm_file
*file
)
804 struct msm_drm_private
*priv
= dev
->dev_private
;
805 struct drm_msm_param
*args
= data
;
808 /* for now, we just have 3d pipe.. eventually this would need to
809 * be more clever to dispatch to appropriate gpu module:
811 if (args
->pipe
!= MSM_PIPE_3D0
)
819 return gpu
->funcs
->get_param(gpu
, args
->param
, &args
->value
);
822 static int msm_ioctl_gem_new(struct drm_device
*dev
, void *data
,
823 struct drm_file
*file
)
825 struct drm_msm_gem_new
*args
= data
;
827 if (args
->flags
& ~MSM_BO_FLAGS
) {
828 DRM_ERROR("invalid flags: %08x\n", args
->flags
);
832 return msm_gem_new_handle(dev
, file
, args
->size
,
833 args
->flags
, &args
->handle
);
836 static inline ktime_t
to_ktime(struct drm_msm_timespec timeout
)
838 return ktime_set(timeout
.tv_sec
, timeout
.tv_nsec
);
841 static int msm_ioctl_gem_cpu_prep(struct drm_device
*dev
, void *data
,
842 struct drm_file
*file
)
844 struct drm_msm_gem_cpu_prep
*args
= data
;
845 struct drm_gem_object
*obj
;
846 ktime_t timeout
= to_ktime(args
->timeout
);
849 if (args
->op
& ~MSM_PREP_FLAGS
) {
850 DRM_ERROR("invalid op: %08x\n", args
->op
);
854 obj
= drm_gem_object_lookup(dev
, file
, args
->handle
);
858 ret
= msm_gem_cpu_prep(obj
, args
->op
, &timeout
);
860 drm_gem_object_unreference_unlocked(obj
);
865 static int msm_ioctl_gem_cpu_fini(struct drm_device
*dev
, void *data
,
866 struct drm_file
*file
)
868 struct drm_msm_gem_cpu_fini
*args
= data
;
869 struct drm_gem_object
*obj
;
872 obj
= drm_gem_object_lookup(dev
, file
, args
->handle
);
876 ret
= msm_gem_cpu_fini(obj
);
878 drm_gem_object_unreference_unlocked(obj
);
883 static int msm_ioctl_gem_info(struct drm_device
*dev
, void *data
,
884 struct drm_file
*file
)
886 struct drm_msm_gem_info
*args
= data
;
887 struct drm_gem_object
*obj
;
893 obj
= drm_gem_object_lookup(dev
, file
, args
->handle
);
897 args
->offset
= msm_gem_mmap_offset(obj
);
899 drm_gem_object_unreference_unlocked(obj
);
904 static int msm_ioctl_wait_fence(struct drm_device
*dev
, void *data
,
905 struct drm_file
*file
)
907 struct drm_msm_wait_fence
*args
= data
;
908 ktime_t timeout
= to_ktime(args
->timeout
);
911 DRM_ERROR("invalid pad: %08x\n", args
->pad
);
915 return msm_wait_fence(dev
, args
->fence
, &timeout
, true);
918 static const struct drm_ioctl_desc msm_ioctls
[] = {
919 DRM_IOCTL_DEF_DRV(MSM_GET_PARAM
, msm_ioctl_get_param
, DRM_AUTH
|DRM_RENDER_ALLOW
),
920 DRM_IOCTL_DEF_DRV(MSM_GEM_NEW
, msm_ioctl_gem_new
, DRM_AUTH
|DRM_RENDER_ALLOW
),
921 DRM_IOCTL_DEF_DRV(MSM_GEM_INFO
, msm_ioctl_gem_info
, DRM_AUTH
|DRM_RENDER_ALLOW
),
922 DRM_IOCTL_DEF_DRV(MSM_GEM_CPU_PREP
, msm_ioctl_gem_cpu_prep
, DRM_AUTH
|DRM_RENDER_ALLOW
),
923 DRM_IOCTL_DEF_DRV(MSM_GEM_CPU_FINI
, msm_ioctl_gem_cpu_fini
, DRM_AUTH
|DRM_RENDER_ALLOW
),
924 DRM_IOCTL_DEF_DRV(MSM_GEM_SUBMIT
, msm_ioctl_gem_submit
, DRM_AUTH
|DRM_RENDER_ALLOW
),
925 DRM_IOCTL_DEF_DRV(MSM_WAIT_FENCE
, msm_ioctl_wait_fence
, DRM_AUTH
|DRM_RENDER_ALLOW
),
928 static const struct vm_operations_struct vm_ops
= {
929 .fault
= msm_gem_fault
,
930 .open
= drm_gem_vm_open
,
931 .close
= drm_gem_vm_close
,
934 static const struct file_operations fops
= {
935 .owner
= THIS_MODULE
,
937 .release
= drm_release
,
938 .unlocked_ioctl
= drm_ioctl
,
940 .compat_ioctl
= drm_compat_ioctl
,
945 .mmap
= msm_gem_mmap
,
948 static struct drm_driver msm_driver
= {
949 .driver_features
= DRIVER_HAVE_IRQ
|
956 .unload
= msm_unload
,
958 .preclose
= msm_preclose
,
959 .lastclose
= msm_lastclose
,
960 .set_busid
= drm_platform_set_busid
,
961 .irq_handler
= msm_irq
,
962 .irq_preinstall
= msm_irq_preinstall
,
963 .irq_postinstall
= msm_irq_postinstall
,
964 .irq_uninstall
= msm_irq_uninstall
,
965 .get_vblank_counter
= drm_vblank_no_hw_counter
,
966 .enable_vblank
= msm_enable_vblank
,
967 .disable_vblank
= msm_disable_vblank
,
968 .gem_free_object
= msm_gem_free_object
,
969 .gem_vm_ops
= &vm_ops
,
970 .dumb_create
= msm_gem_dumb_create
,
971 .dumb_map_offset
= msm_gem_dumb_map_offset
,
972 .dumb_destroy
= drm_gem_dumb_destroy
,
973 .prime_handle_to_fd
= drm_gem_prime_handle_to_fd
,
974 .prime_fd_to_handle
= drm_gem_prime_fd_to_handle
,
975 .gem_prime_export
= drm_gem_prime_export
,
976 .gem_prime_import
= drm_gem_prime_import
,
977 .gem_prime_pin
= msm_gem_prime_pin
,
978 .gem_prime_unpin
= msm_gem_prime_unpin
,
979 .gem_prime_get_sg_table
= msm_gem_prime_get_sg_table
,
980 .gem_prime_import_sg_table
= msm_gem_prime_import_sg_table
,
981 .gem_prime_vmap
= msm_gem_prime_vmap
,
982 .gem_prime_vunmap
= msm_gem_prime_vunmap
,
983 .gem_prime_mmap
= msm_gem_prime_mmap
,
984 #ifdef CONFIG_DEBUG_FS
985 .debugfs_init
= msm_debugfs_init
,
986 .debugfs_cleanup
= msm_debugfs_cleanup
,
988 .ioctls
= msm_ioctls
,
989 .num_ioctls
= DRM_MSM_NUM_IOCTLS
,
992 .desc
= "MSM Snapdragon DRM",
998 #ifdef CONFIG_PM_SLEEP
999 static int msm_pm_suspend(struct device
*dev
)
1001 struct drm_device
*ddev
= dev_get_drvdata(dev
);
1003 drm_kms_helper_poll_disable(ddev
);
1008 static int msm_pm_resume(struct device
*dev
)
1010 struct drm_device
*ddev
= dev_get_drvdata(dev
);
1012 drm_kms_helper_poll_enable(ddev
);
1018 static const struct dev_pm_ops msm_pm_ops
= {
1019 SET_SYSTEM_SLEEP_PM_OPS(msm_pm_suspend
, msm_pm_resume
)
1023 * Componentized driver support:
1027 * NOTE: duplication of the same code as exynos or imx (or probably any other).
1028 * so probably some room for some helpers
1030 static int compare_of(struct device
*dev
, void *data
)
1032 return dev
->of_node
== data
;
1035 static int add_components(struct device
*dev
, struct component_match
**matchptr
,
1038 struct device_node
*np
= dev
->of_node
;
1041 for (i
= 0; ; i
++) {
1042 struct device_node
*node
;
1044 node
= of_parse_phandle(np
, name
, i
);
1048 component_match_add(dev
, matchptr
, compare_of
, node
);
1054 static int msm_drm_bind(struct device
*dev
)
1056 return drm_platform_init(&msm_driver
, to_platform_device(dev
));
1059 static void msm_drm_unbind(struct device
*dev
)
1061 drm_put_dev(platform_get_drvdata(to_platform_device(dev
)));
1064 static const struct component_master_ops msm_drm_ops
= {
1065 .bind
= msm_drm_bind
,
1066 .unbind
= msm_drm_unbind
,
1073 static int msm_pdev_probe(struct platform_device
*pdev
)
1075 struct component_match
*match
= NULL
;
1077 add_components(&pdev
->dev
, &match
, "connectors");
1078 add_components(&pdev
->dev
, &match
, "gpus");
1080 pdev
->dev
.coherent_dma_mask
= DMA_BIT_MASK(32);
1081 return component_master_add_with_match(&pdev
->dev
, &msm_drm_ops
, match
);
1084 static int msm_pdev_remove(struct platform_device
*pdev
)
1086 component_master_del(&pdev
->dev
, &msm_drm_ops
);
1091 static const struct platform_device_id msm_id
[] = {
1096 static const struct of_device_id dt_match
[] = {
1097 { .compatible
= "qcom,mdp4", .data
= (void *) 4 }, /* mdp4 */
1098 { .compatible
= "qcom,mdp5", .data
= (void *) 5 }, /* mdp5 */
1099 /* to support downstream DT files */
1100 { .compatible
= "qcom,mdss_mdp", .data
= (void *) 5 }, /* mdp5 */
1103 MODULE_DEVICE_TABLE(of
, dt_match
);
1105 static struct platform_driver msm_platform_driver
= {
1106 .probe
= msm_pdev_probe
,
1107 .remove
= msm_pdev_remove
,
1110 .of_match_table
= dt_match
,
1116 static int __init
msm_drm_register(void)
1121 msm_hdmi_register();
1123 return platform_driver_register(&msm_platform_driver
);
1126 static void __exit
msm_drm_unregister(void)
1129 platform_driver_unregister(&msm_platform_driver
);
1130 msm_hdmi_unregister();
1131 adreno_unregister();
1132 msm_edp_unregister();
1133 msm_dsi_unregister();
1136 module_init(msm_drm_register
);
1137 module_exit(msm_drm_unregister
);
1139 MODULE_AUTHOR("Rob Clark <robdclark@gmail.com");
1140 MODULE_DESCRIPTION("MSM DRM Driver");
1141 MODULE_LICENSE("GPL");