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Diffstat (limited to 'linux-core/drm_irq.c')
-rw-r--r--linux-core/drm_irq.c122
1 files changed, 19 insertions, 103 deletions
diff --git a/linux-core/drm_irq.c b/linux-core/drm_irq.c
index 103f3e2b..57419ca1 100644
--- a/linux-core/drm_irq.c
+++ b/linux-core/drm_irq.c
@@ -96,37 +96,30 @@ static void vblank_disable_fn(unsigned long arg)
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);
- if (dev->vbl_queue)
- drm_free(dev->vbl_queue, sizeof(*dev->vbl_queue) * dev->num_crtcs,
+ drm_free(dev->vbl_queue, sizeof(*dev->vbl_queue) * dev->num_crtcs,
DRM_MEM_DRIVER);
-
- if (dev->vbl_sigs)
- drm_free(dev->vbl_sigs, sizeof(*dev->vbl_sigs) * dev->num_crtcs,
+ drm_free(dev->vbl_sigs, sizeof(*dev->vbl_sigs) * dev->num_crtcs,
DRM_MEM_DRIVER);
-
- if (dev->_vblank_count)
- drm_free(dev->_vblank_count, sizeof(*dev->_vblank_count) *
+ drm_free(dev->_vblank_count, sizeof(*dev->_vblank_count) *
dev->num_crtcs, DRM_MEM_DRIVER);
-
- if (dev->vblank_refcount)
- drm_free(dev->vblank_refcount, sizeof(*dev->vblank_refcount) *
+ drm_free(dev->vblank_refcount, sizeof(*dev->vblank_refcount) *
dev->num_crtcs, DRM_MEM_DRIVER);
-
- if (dev->vblank_enabled)
- drm_free(dev->vblank_enabled, sizeof(*dev->vblank_enabled) *
+ drm_free(dev->vblank_enabled, sizeof(*dev->vblank_enabled) *
dev->num_crtcs, DRM_MEM_DRIVER);
-
- if (dev->last_vblank)
- drm_free(dev->last_vblank, sizeof(*dev->last_vblank) * dev->num_crtcs,
+ 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);
- if (dev->vblank_inmodeset)
- drm_free(dev->vblank_inmodeset, sizeof(*dev->vblank_inmodeset) *
- dev->num_crtcs, DRM_MEM_DRIVER);
+ dev->num_crtcs = 0;
}
int drm_vblank_init(struct drm_device *dev, int num_crtcs)
@@ -192,30 +185,6 @@ err:
}
EXPORT_SYMBOL(drm_vblank_init);
-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.
*
@@ -246,7 +215,7 @@ int drm_irq_install(struct drm_device * dev)
if (dev->irq_enabled) {
mutex_unlock(&dev->struct_mutex);
- return 0;
+ return -EBUSY;
}
dev->irq_enabled = 1;
mutex_unlock(&dev->struct_mutex);
@@ -315,8 +284,6 @@ int drm_irq_uninstall(struct drm_device * dev)
drm_vblank_cleanup(dev);
- drm_hotplug_cleanup(dev);
-
dev->locked_tasklet_func = NULL;
return 0;
@@ -346,8 +313,6 @@ int drm_control(struct drm_device *dev, void *data,
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->pdev->irq)
return -EINVAL;
@@ -355,8 +320,6 @@ int drm_control(struct drm_device *dev, void *data,
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;
@@ -597,7 +560,7 @@ int drm_wait_vblank(struct drm_device *dev, void *data,
if (flags & _DRM_VBLANK_SIGNAL) {
unsigned long irqflags;
struct list_head *vbl_sigs = &dev->vbl_sigs[crtc];
- struct drm_vbl_sig *vbl_sig, *tmp;
+ struct drm_vbl_sig *vbl_sig;
spin_lock_irqsave(&dev->vbl_lock, irqflags);
@@ -605,7 +568,7 @@ int drm_wait_vblank(struct drm_device *dev, void *data,
* for the same vblank sequence number; nothing to be done in
* that case
*/
- list_for_each_entry_safe(vbl_sig, tmp, vbl_sigs, head) {
+ list_for_each_entry(vbl_sig, vbl_sigs, head) {
if (vbl_sig->sequence == vblwait->request.sequence
&& vbl_sig->info.si_signo ==
vblwait->request.signal
@@ -730,53 +693,6 @@ void drm_handle_vblank(struct drm_device *dev, int crtc)
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.
@@ -796,12 +712,12 @@ static void drm_locked_tasklet_func(unsigned long data)
spin_unlock_irqrestore(&dev->tasklet_lock, irqflags);
if (!tasklet_func ||
- !drm_lock_take(&dev->primary->master->lock,
+ !drm_lock_take(&dev->lock,
DRM_KERNEL_CONTEXT)) {
return;
}
- dev->primary->master->lock.lock_time = jiffies;
+ dev->lock.lock_time = jiffies;
atomic_inc(&dev->counts[_DRM_STAT_LOCKS]);
spin_lock_irqsave(&dev->tasklet_lock, irqflags);
@@ -812,7 +728,7 @@ static void drm_locked_tasklet_func(unsigned long data)
if (tasklet_func != NULL)
tasklet_func(dev);
- drm_lock_free(&dev->primary->master->lock,
+ drm_lock_free(&dev->lock,
DRM_KERNEL_CONTEXT);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-02 19:20:06 +0000