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

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

3 files changed, 32 insertions, 1 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.c b/drivers/gpu/drm/nouveau/nouveau_drv.c
index 7e25f5a6db96..76cd287c7cec 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.c
@@ -393,7 +393,9 @@ static struct drm_driver driver = {
         .firstopen = nouveau_firstopen,
         .lastclose = nouveau_lastclose,
         .unload = nouveau_unload,
+        .open = nouveau_open,
         .preclose = nouveau_preclose,
+        .postclose = nouveau_postclose,
 #if defined(CONFIG_DRM_NOUVEAU_DEBUG)
         .debugfs_init = nouveau_debugfs_init,
         .debugfs_cleanup = nouveau_debugfs_takedown,
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 86eb3f40c4f8..a378a9648198 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -46,9 +46,15 @@
 #include "ttm/ttm_module.h"
 
 struct nouveau_fpriv {
-        struct ttm_object_file *tfile;
+        spinlock_t lock;
 };
 
+static inline struct nouveau_fpriv *
+nouveau_fpriv(struct drm_file *file_priv)
+{
+        return file_priv ? file_priv->driver_priv : NULL;
+}
+
 #define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
 
 #include "nouveau_drm.h"
@@ -792,7 +798,9 @@ extern int nouveau_pci_suspend(struct pci_dev *pdev, pm_message_t pm_state);
 extern int nouveau_pci_resume(struct pci_dev *pdev);
 
 /* nouveau_state.c */
+extern int  nouveau_open(struct drm_device *, struct drm_file *);
 extern void nouveau_preclose(struct drm_device *dev, struct drm_file *);
+extern void nouveau_postclose(struct drm_device *, struct drm_file *);
 extern int  nouveau_load(struct drm_device *, unsigned long flags);
 extern int  nouveau_firstopen(struct drm_device *);
 extern void nouveau_lastclose(struct drm_device *);
diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c
index a0e17340e145..9aa96b9375ae 100644
--- 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)