diff options
| -rw-r--r-- | drivers/gpu/drm/drm_irq.c | 80 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_lock.c | 9 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_stub.c | 1 | ||||
| -rw-r--r-- | include/drm/drmP.h | 5 |
4 files changed, 0 insertions, 95 deletions
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index 212a94f715b2..15c8dabc3e97 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -280,8 +280,6 @@ int drm_irq_uninstall(struct drm_device * dev) drm_vblank_cleanup(dev); - dev->locked_tasklet_func = NULL; - return 0; } EXPORT_SYMBOL(drm_irq_uninstall); @@ -699,81 +697,3 @@ void drm_handle_vblank(struct drm_device *dev, int crtc) drm_vbl_send_signals(dev, crtc); } EXPORT_SYMBOL(drm_handle_vblank); - -/** - * Tasklet wrapper function. - * - * \param data DRM device in disguise. - * - * Attempts to grab the HW lock and calls the driver callback on success. On - * failure, leave the lock marked as contended so the callback can be called - * from drm_unlock(). - */ -static void drm_locked_tasklet_func(unsigned long data) -{ - struct drm_device *dev = (struct drm_device *)data; - unsigned long irqflags; - void (*tasklet_func)(struct drm_device *); - - spin_lock_irqsave(&dev->tasklet_lock, irqflags); - tasklet_func = dev->locked_tasklet_func; - spin_unlock_irqrestore(&dev->tasklet_lock, irqflags); - - if (!tasklet_func || - !drm_lock_take(&dev->lock, - DRM_KERNEL_CONTEXT)) { - return; - } - - dev->lock.lock_time = jiffies; - atomic_inc(&dev->counts[_DRM_STAT_LOCKS]); - - spin_lock_irqsave(&dev->tasklet_lock, irqflags); - tasklet_func = dev->locked_tasklet_func; - dev->locked_tasklet_func = NULL; - spin_unlock_irqrestore(&dev->tasklet_lock, irqflags); - - if (tasklet_func != NULL) - tasklet_func(dev); - - drm_lock_free(&dev->lock, - DRM_KERNEL_CONTEXT); -} - -/** - * Schedule a tasklet to call back a driver hook with the HW lock held. - * - * \param dev DRM device. - * \param func Driver callback. - * - * This is intended for triggering actions that require the HW lock from an - * interrupt handler. The lock will be grabbed ASAP after the interrupt handler - * completes. Note that the callback may be called from interrupt or process - * context, it must not make any assumptions about this. Also, the HW lock will - * be held with the kernel context or any client context. - */ -void drm_locked_tasklet(struct drm_device *dev, void (*func)(struct drm_device *)) -{ - unsigned long irqflags; - static DECLARE_TASKLET(drm_tasklet, drm_locked_tasklet_func, 0); - - if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ) || - test_bit(TASKLET_STATE_SCHED, &drm_tasklet.state)) - return; - - spin_lock_irqsave(&dev->tasklet_lock, irqflags); - - if (dev->locked_tasklet_func) { - spin_unlock_irqrestore(&dev->tasklet_lock, irqflags); - return; - } - - dev->locked_tasklet_func = func; - - spin_unlock_irqrestore(&dev->tasklet_lock, irqflags); - - drm_tasklet.data = (unsigned long)dev; - - tasklet_hi_schedule(&drm_tasklet); -} -EXPORT_SYMBOL(drm_locked_tasklet); diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c index 888159e03d26..1cfa72031f8f 100644 --- a/drivers/gpu/drm/drm_lock.c +++ b/drivers/gpu/drm/drm_lock.c @@ -154,8 +154,6 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv) int drm_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_lock *lock = data; - unsigned long irqflags; - void (*tasklet_func)(struct drm_device *); if (lock->context == DRM_KERNEL_CONTEXT) { DRM_ERROR("Process %d using kernel context %d\n", @@ -163,13 +161,6 @@ int drm_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv) return -EINVAL; } - spin_lock_irqsave(&dev->tasklet_lock, irqflags); - tasklet_func = dev->locked_tasklet_func; - dev->locked_tasklet_func = NULL; - spin_unlock_irqrestore(&dev->tasklet_lock, irqflags); - if (tasklet_func != NULL) - tasklet_func(dev); - atomic_inc(&dev->counts[_DRM_STAT_UNLOCKS]); /* kernel_context_switch isn't used by any of the x86 drm diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c index 141e33004a76..66c96ec66672 100644 --- a/drivers/gpu/drm/drm_stub.c +++ b/drivers/gpu/drm/drm_stub.c @@ -92,7 +92,6 @@ static int drm_fill_in_dev(struct drm_device * dev, struct pci_dev *pdev, spin_lock_init(&dev->count_lock); spin_lock_init(&dev->drw_lock); - spin_lock_init(&dev->tasklet_lock); spin_lock_init(&dev->lock.spinlock); init_timer(&dev->timer); mutex_init(&dev->struct_mutex); diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 59c796b46ee7..28c7f1679d49 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -861,8 +861,6 @@ struct drm_device { struct timer_list vblank_disable_timer; u32 max_vblank_count; /**< size of vblank counter register */ - spinlock_t tasklet_lock; /**< For drm_locked_tasklet */ - void (*locked_tasklet_func)(struct drm_device *dev); /*@} */ cycles_t ctx_start; @@ -1149,8 +1147,6 @@ extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); extern int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *filp); extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); -extern void drm_locked_tasklet(struct drm_device *dev, - void(*func)(struct drm_device *)); extern u32 drm_vblank_count(struct drm_device *dev, int crtc); extern void drm_handle_vblank(struct drm_device *dev, int crtc); extern int drm_vblank_get(struct drm_device *dev, int crtc); @@ -1158,7 +1154,6 @@ extern void drm_vblank_put(struct drm_device *dev, int crtc); /* Modesetting support */ extern int drm_modeset_ctl(struct drm_device *dev, void *data, struct drm_file *file_priv); -extern void drm_locked_tasklet(struct drm_device *dev, void(*func)(struct drm_device*)); /* AGP/GART support (drm_agpsupport.h) */ extern struct drm_agp_head *drm_agp_init(struct drm_device *dev); |