diff options
Diffstat (limited to 'drivers/gpu/drm/drm_fops.c')
| -rw-r--r-- | drivers/gpu/drm/drm_fops.c | 77 |
1 files changed, 71 insertions, 6 deletions
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c index 22d14ecbd3ec..c5b929c3f77a 100644 --- a/drivers/gpu/drm/drm_fops.c +++ b/drivers/gpu/drm/drm_fops.c @@ -113,7 +113,6 @@ int drm_open(struct inode *inode, struct file *filp) retcode = drm_open_helper(inode, filp, dev); if (retcode) goto err_undo; - atomic_inc(&dev->counts[_DRM_STAT_OPENS]); if (need_setup) { retcode = drm_setup(dev); if (retcode) @@ -235,7 +234,8 @@ static int drm_open_helper(struct inode *inode, struct file *filp, priv->ioctl_count = 0; /* for compatibility root is always authenticated */ - priv->authenticated = capable(CAP_SYS_ADMIN); + priv->always_authenticated = capable(CAP_SYS_ADMIN); + priv->authenticated = priv->always_authenticated; priv->lock_count = 0; INIT_LIST_HEAD(&priv->lhead); @@ -374,13 +374,80 @@ static void drm_events_release(struct drm_file *file_priv) } /* Remove unconsumed events */ - list_for_each_entry_safe(e, et, &file_priv->event_list, link) + list_for_each_entry_safe(e, et, &file_priv->event_list, link) { + list_del(&e->link); e->destroy(e); + } spin_unlock_irqrestore(&dev->event_lock, flags); } /** + * drm_legacy_dev_reinit + * + * Reinitializes a legacy/ums drm device in it's lastclose function. + */ +static void drm_legacy_dev_reinit(struct drm_device *dev) +{ + if (drm_core_check_feature(dev, DRIVER_MODESET)) + return; + + atomic_set(&dev->ioctl_count, 0); + atomic_set(&dev->vma_count, 0); + + dev->sigdata.lock = NULL; + + dev->context_flag = 0; + dev->last_context = 0; + dev->if_version = 0; +} + +/** + * Take down the DRM device. + * + * \param dev DRM device structure. + * + * Frees every resource in \p dev. + * + * \sa drm_device + */ +int drm_lastclose(struct drm_device * dev) +{ + struct drm_vma_entry *vma, *vma_temp; + + DRM_DEBUG("\n"); + + if (dev->driver->lastclose) + dev->driver->lastclose(dev); + DRM_DEBUG("driver lastclose completed\n"); + + if (dev->irq_enabled && !drm_core_check_feature(dev, DRIVER_MODESET)) + drm_irq_uninstall(dev); + + mutex_lock(&dev->struct_mutex); + + drm_agp_clear(dev); + + drm_legacy_sg_cleanup(dev); + + /* Clear vma list (only built for debugging) */ + list_for_each_entry_safe(vma, vma_temp, &dev->vmalist, head) { + list_del(&vma->head); + kfree(vma); + } + + drm_legacy_dma_takedown(dev); + + dev->dev_mapping = NULL; + mutex_unlock(&dev->struct_mutex); + + drm_legacy_dev_reinit(dev); + + DRM_DEBUG("lastclose completed\n"); + return 0; +} + +/** * Release file. * * \param inode device inode @@ -449,7 +516,6 @@ int drm_release(struct inode *inode, struct file *filp) list_del(&pos->head); kfree(pos); - --dev->ctx_count; } } } @@ -463,7 +529,7 @@ int drm_release(struct inode *inode, struct file *filp) list_for_each_entry(temp, &dev->filelist, lhead) { if ((temp->master == file_priv->master) && (temp != file_priv)) - temp->authenticated = 0; + temp->authenticated = temp->always_authenticated; } /** @@ -511,7 +577,6 @@ int drm_release(struct inode *inode, struct file *filp) * End inline drm_release */ - atomic_inc(&dev->counts[_DRM_STAT_CLOSES]); if (!--dev->open_count) { if (atomic_read(&dev->ioctl_count)) { DRM_ERROR("Device busy: %d\n", |