drm: move drm_lastclose() to drm_fops.c

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / gpu / drm / drm_fops.c

diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index 3f84277..8bc94ea 100644 (file)
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -386,6 +386,76 @@ static void drm_events_release(struct drm_file *file_priv)
 }
 
 /**
+ * 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)
+{
+       int i;
+
+       if (drm_core_check_feature(dev, DRIVER_MODESET))
+               return;
+
+       atomic_set(&dev->ioctl_count, 0);
+       atomic_set(&dev->vma_count, 0);
+
+       for (i = 0; i < ARRAY_SIZE(dev->counts); i++)
+               atomic_set(&dev->counts[i], 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