drm/nouveau: allocate structure to store per-client data

[~andy/linux] / drivers / gpu / drm / nouveau / nouveau_state.c

diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c
index a0e17340e145aea01cee02ecdb37cbe0f9b4c656..9aa96b9375ae02fc400744c7b95b4036c9ea9f59 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_state.c
+++ b/drivers/gpu/drm/nouveau/nouveau_state.c
@@ -764,6 +764,20 @@ static void nouveau_card_takedown(struct drm_device *dev)
        vga_client_register(dev->pdev, NULL, NULL, NULL);
 }
 
+int
+nouveau_open(struct drm_device *dev, struct drm_file *file_priv)
+{
+       struct nouveau_fpriv *fpriv;
+
+       fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL);
+       if (unlikely(!fpriv))
+               return -ENOMEM;
+
+       spin_lock_init(&fpriv->lock);
+       file_priv->driver_priv = fpriv;
+       return 0;
+}
+
 /* here a client dies, release the stuff that was allocated for its
  * file_priv */
 void nouveau_preclose(struct drm_device *dev, struct drm_file *file_priv)
@@ -771,6 +785,13 @@ void nouveau_preclose(struct drm_device *dev, struct drm_file *file_priv)
        nouveau_channel_cleanup(dev, file_priv);
 }
 
+void
+nouveau_postclose(struct drm_device *dev, struct drm_file *file_priv)
+{
+       struct nouveau_fpriv *fpriv = nouveau_fpriv(file_priv);
+       kfree(fpriv);
+}
+
 /* first module load, setup the mmio/fb mapping */
 /* KMS: we need mmio at load time, not when the first drm client opens. */
 int nouveau_firstopen(struct drm_device *dev)