From: Ben Skeggs bskeggs@redhat.com
Nouveau is going to use these hooks to map/unmap objects from a client's private GPU address space.
Signed-off-by: Ben Skeggs bskeggs@redhat.com --- drivers/gpu/drm/drm_gem.c | 21 +++++++++++++++++++-- include/drm/drmP.h | 2 ++ 2 files changed, 21 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index 74e4ff5..bad3359 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -210,6 +210,8 @@ drm_gem_handle_delete(struct drm_file *filp, u32 handle) idr_remove(&filp->object_idr, handle); spin_unlock(&filp->table_lock);
+ if (dev->driver->gem_close_object) + dev->driver->gem_close_object(obj, filp); drm_gem_object_handle_unreference_unlocked(obj);
return 0; @@ -226,7 +228,8 @@ drm_gem_handle_create(struct drm_file *file_priv, struct drm_gem_object *obj, u32 *handlep) { - int ret; + struct drm_device *dev = obj->dev; + int ret;
/* * Get the user-visible handle using idr. @@ -247,6 +250,15 @@ again: return ret;
drm_gem_object_handle_reference(obj); + + if (dev->driver->gem_open_object) { + ret = dev->driver->gem_open_object(obj, file_priv); + if (ret) { + drm_gem_handle_delete(file_priv, *handlep); + return ret; + } + } + return 0; } EXPORT_SYMBOL(drm_gem_handle_create); @@ -401,7 +413,12 @@ drm_gem_open(struct drm_device *dev, struct drm_file *file_private) static int drm_gem_object_release_handle(int id, void *ptr, void *data) { + struct drm_file *file_priv = data; struct drm_gem_object *obj = ptr; + struct drm_device *dev = obj->dev; + + if (dev->driver->gem_close_object) + dev->driver->gem_close_object(obj, file_priv);
drm_gem_object_handle_unreference_unlocked(obj);
@@ -417,7 +434,7 @@ void drm_gem_release(struct drm_device *dev, struct drm_file *file_private) { idr_for_each(&file_private->object_idr, - &drm_gem_object_release_handle, NULL); + &drm_gem_object_release_handle, file_private);
idr_remove_all(&file_private->object_idr); idr_destroy(&file_private->object_idr); diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 738b3a5..4912cb7 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -886,6 +886,8 @@ struct drm_driver { */ int (*gem_init_object) (struct drm_gem_object *obj); void (*gem_free_object) (struct drm_gem_object *obj); + int (*gem_open_object) (struct drm_gem_object *, struct drm_file *); + void (*gem_close_object) (struct drm_gem_object *, struct drm_file *);
/* vga arb irq handler */ void (*vgaarb_irq)(struct drm_device *dev, bool state);