p->devnum != PCI_SLOT(dev->pdev->devfn) || p->funcnum != PCI_FUNC(dev->pdev->devfn))
return -EINVAL;
- p->irq = dev->irq;
+ p->irq = dev->pdev->irq;
DRM_DEBUG("%d:%d:%d => IRQ %d\n", p->busnum, p->devnum, p->funcnum,
p->irq);
static void drm_vblank_cleanup(struct drm_device *dev)
{
- /* Bail if the driver didn't call drm_vblank_init() */
- if (dev->num_crtcs == 0)
- return;
-
del_timer(&dev->vblank_disable_timer);
vblank_disable_fn((unsigned long)dev);
- drm_free(dev->vbl_queue, sizeof(*dev->vbl_queue) * dev->num_crtcs,
+ if (dev->vbl_queue)
+ drm_free(dev->vbl_queue, sizeof(*dev->vbl_queue) * dev->num_crtcs,
DRM_MEM_DRIVER);
- drm_free(dev->vbl_sigs, sizeof(*dev->vbl_sigs) * dev->num_crtcs,
+
+ if (dev->vbl_sigs)
+ drm_free(dev->vbl_sigs, sizeof(*dev->vbl_sigs) * dev->num_crtcs,
DRM_MEM_DRIVER);
- drm_free(dev->_vblank_count, sizeof(*dev->_vblank_count) *
+
+ if (dev->_vblank_count)
+ drm_free(dev->_vblank_count, sizeof(*dev->_vblank_count) *
dev->num_crtcs, DRM_MEM_DRIVER);
- drm_free(dev->vblank_refcount, sizeof(*dev->vblank_refcount) *
+
+ if (dev->vblank_refcount)
+ drm_free(dev->vblank_refcount, sizeof(*dev->vblank_refcount) *
dev->num_crtcs, DRM_MEM_DRIVER);
- drm_free(dev->vblank_enabled, sizeof(*dev->vblank_enabled) *
+
+ if (dev->vblank_enabled)
+ drm_free(dev->vblank_enabled, sizeof(*dev->vblank_enabled) *
dev->num_crtcs, DRM_MEM_DRIVER);
- drm_free(dev->last_vblank, sizeof(*dev->last_vblank) * dev->num_crtcs,
+
+ if (dev->last_vblank)
+ drm_free(dev->last_vblank, sizeof(*dev->last_vblank) * dev->num_crtcs,
DRM_MEM_DRIVER);
- drm_free(dev->vblank_inmodeset, sizeof(*dev->vblank_inmodeset) *
- dev->num_crtcs, DRM_MEM_DRIVER);
- dev->num_crtcs = 0;
+ if (dev->vblank_inmodeset)
+ drm_free(dev->vblank_inmodeset, sizeof(*dev->vblank_inmodeset) *
+ dev->num_crtcs, DRM_MEM_DRIVER);
}
int drm_vblank_init(struct drm_device *dev, int num_crtcs)
setup_timer(&dev->vblank_disable_timer, vblank_disable_fn,
(unsigned long)dev);
+ init_timer_deferrable(&dev->vblank_disable_timer);
spin_lock_init(&dev->vbl_lock);
atomic_set(&dev->vbl_signal_pending, 0);
dev->num_crtcs = num_crtcs;
}
EXPORT_SYMBOL(drm_vblank_init);
+int drm_wait_hotplug(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ union drm_wait_hotplug *hotplugwait = data;
+ struct timeval now;
+ int ret = 0;
+ unsigned int flags;
+
+ if ((!dev->irq) || (!dev->irq_enabled))
+ return -EINVAL;
+
+ flags = hotplugwait->request.type;
+
+ if (flags & _DRM_HOTPLUG_SIGNAL) {
+ unsigned long irqflags;
+ struct list_head *hotplug_sigs = dev->hotplug_sigs;
+ struct drm_hotplug_sig *hotplug_sig;
+
+ hotplug_sig = drm_calloc(1, sizeof(struct drm_hotplug_sig),
+ DRM_MEM_DRIVER);
+ if (!hotplug_sig)
+ return -ENOMEM;
+
+ atomic_inc(&dev->hotplug_signal_pending);
+
+ hotplug_sig->info.si_signo = hotplugwait->request.signal;
+ hotplug_sig->task = current;
+ hotplug_sig->counter =
+ hotplugwait->reply.counter =
+ dev->mode_config.hotplug_counter;
+
+ spin_lock_irqsave(&dev->hotplug_lock, irqflags);
+
+ list_add_tail(&hotplug_sig->head, hotplug_sigs);
+
+ spin_unlock_irqrestore(&dev->hotplug_lock, irqflags);
+ } else {
+ int cur_hotplug = dev->mode_config.hotplug_counter;
+
+ DRM_WAIT_ON(ret, dev->hotplug_queue, 3 * DRM_HZ,
+ dev->mode_config.hotplug_counter > cur_hotplug);
+
+ do_gettimeofday(&now);
+
+ hotplugwait->reply.tval_sec = now.tv_sec;
+ hotplugwait->reply.tval_usec = now.tv_usec;
+ hotplugwait->reply.counter = dev->mode_config.hotplug_counter;
+ }
+
+ return ret;
+}
+
+static void drm_hotplug_cleanup(struct drm_device *dev)
+{
+ if (dev->hotplug_sigs)
+ drm_free(dev->hotplug_sigs, sizeof(*dev->hotplug_sigs),
+ DRM_MEM_DRIVER);
+}
+EXPORT_SYMBOL(drm_hotplug_cleanup);
+
+int drm_hotplug_init(struct drm_device *dev)
+{
+ spin_lock_init(&dev->hotplug_lock);
+ atomic_set(&dev->hotplug_signal_pending, 0);
+
+ dev->hotplug_sigs = drm_alloc(sizeof(struct list_head), DRM_MEM_DRIVER);
+ if (!dev->hotplug_sigs)
+ return -ENOMEM;
+
+ INIT_LIST_HEAD(dev->hotplug_sigs);
+ init_waitqueue_head(&dev->hotplug_queue);
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_hotplug_init);
+
/**
* Install IRQ handler.
*
if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
return -EINVAL;
- if (dev->irq == 0)
+ if (dev->pdev->irq == 0)
return -EINVAL;
mutex_lock(&dev->struct_mutex);
if (dev->irq_enabled) {
mutex_unlock(&dev->struct_mutex);
- return -EBUSY;
+ return 0;
}
dev->irq_enabled = 1;
mutex_unlock(&dev->struct_mutex);
- DRM_DEBUG("irq=%d\n", dev->irq);
+ DRM_DEBUG("irq=%d\n", dev->pdev->irq);
/* Before installing handler */
dev->driver->irq_preinstall(dev);
if (drm_core_check_feature(dev, DRIVER_IRQ_SHARED))
sh_flags = IRQF_SHARED;
- ret = request_irq(dev->irq, dev->driver->irq_handler,
+ ret = request_irq(dev->pdev->irq, dev->driver->irq_handler,
sh_flags, dev->devname, dev);
if (ret < 0) {
mutex_lock(&dev->struct_mutex);
mutex_unlock(&dev->struct_mutex);
return ret;
}
+ /* Expose the device irq to device drivers that want to export it for
+ * whatever reason.
+ */
+ dev->irq = dev->pdev->irq;
/* After installing handler */
ret = dev->driver->irq_postinstall(dev);
if (!irq_enabled)
return -EINVAL;
- DRM_DEBUG("irq=%d\n", dev->irq);
+ DRM_DEBUG("irq=%d\n", dev->pdev->irq);
dev->driver->irq_uninstall(dev);
- free_irq(dev->irq, dev);
+ free_irq(dev->pdev->irq, dev);
drm_vblank_cleanup(dev);
+ drm_hotplug_cleanup(dev);
+
dev->locked_tasklet_func = NULL;
return 0;
case DRM_INST_HANDLER:
if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
return 0;
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ return 0;
if (dev->if_version < DRM_IF_VERSION(1, 2) &&
- ctl->irq != dev->irq)
+ ctl->irq != dev->pdev->irq)
return -EINVAL;
return drm_irq_install(dev);
case DRM_UNINST_HANDLER:
if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
return 0;
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ return 0;
return drm_irq_uninstall(dev);
default:
return -EINVAL;
int ret = 0;
unsigned int flags, seq, crtc;
- if ((!dev->irq) || (!dev->irq_enabled))
+ if ((!dev->pdev->irq) || (!dev->irq_enabled))
return -EINVAL;
if (vblwait->request.type &
if (flags & _DRM_VBLANK_SIGNAL) {
unsigned long irqflags;
struct list_head *vbl_sigs = &dev->vbl_sigs[crtc];
- struct drm_vbl_sig *vbl_sig;
+ struct drm_vbl_sig *vbl_sig, *tmp;
spin_lock_irqsave(&dev->vbl_lock, irqflags);
* for the same vblank sequence number; nothing to be done in
* that case
*/
- list_for_each_entry(vbl_sig, vbl_sigs, head) {
+ list_for_each_entry_safe(vbl_sig, tmp, vbl_sigs, head) {
if (vbl_sig->sequence == vblwait->request.sequence
&& vbl_sig->info.si_signo ==
vblwait->request.signal
EXPORT_SYMBOL(drm_handle_vblank);
/**
+ * Send the HOTPLUG signals.
+ *
+ * \param dev DRM device.
+ *
+ * Sends a signal for each task in drm_device::hotplug_sigs and empties the list.
+ */
+static void drm_hotplug_send_signals(struct drm_device * dev)
+{
+ struct drm_hotplug_sig *hotplug_sig, *tmp;
+ struct list_head *hotplug_sigs;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->hotplug_lock, flags);
+
+ hotplug_sigs = dev->hotplug_sigs;
+
+ list_for_each_entry_safe(hotplug_sig, tmp, hotplug_sigs, head) {
+ hotplug_sig->info.si_code = hotplug_sig->counter;
+
+ send_sig_info(hotplug_sig->info.si_signo,
+ &hotplug_sig->info, hotplug_sig->task);
+
+ list_del(&hotplug_sig->head);
+
+ drm_free(hotplug_sig, sizeof(*hotplug_sig),
+ DRM_MEM_DRIVER);
+ atomic_dec(&dev->hotplug_signal_pending);
+ }
+
+ spin_unlock_irqrestore(&dev->hotplug_lock, flags);
+}
+
+/**
+ * drm_handle_hotplug - handle a hotplug event
+ * @dev: DRM device
+ * @crtc: where this event occurred
+ *
+ * Drivers should call this routine in their hotplug interrupt handlers.
+ */
+void drm_handle_hotplug(struct drm_device *dev)
+{
+ DRM_WAKEUP(&dev->hotplug_queue);
+ drm_hotplug_send_signals(dev);
+}
+EXPORT_SYMBOL(drm_handle_hotplug);
+
+/**
* Tasklet wrapper function.
*
* \param data DRM device in disguise.
spin_lock_irqsave(&dev->tasklet_lock, irqflags);
if (!dev->locked_tasklet_func ||
- !drm_lock_take(&dev->lock,
+ !drm_lock_take(&dev->primary->master->lock,
DRM_KERNEL_CONTEXT)) {
spin_unlock_irqrestore(&dev->tasklet_lock, irqflags);
return;
}
- dev->lock.lock_time = jiffies;
+ dev->primary->master->lock.lock_time = jiffies;
atomic_inc(&dev->counts[_DRM_STAT_LOCKS]);
dev->locked_tasklet_func(dev);
- drm_lock_free(&dev->lock,
+ drm_lock_free(&dev->primary->master->lock,
DRM_KERNEL_CONTEXT);
dev->locked_tasklet_func = NULL;
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