drm/exynos: added a feature to get gem buffer information.
this patch adds a feature to get a gem buffer information and user application
can get the gem buffer information simply in runtime through gem handle.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index 31bb85f..fc91293 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -604,6 +604,32 @@
return 0;
}
+int exynos_drm_gem_get_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{ struct exynos_drm_gem_obj *exynos_gem_obj;
+ struct drm_exynos_gem_info *args = data;
+ struct drm_gem_object *obj;
+
+ mutex_lock(&dev->struct_mutex);
+
+ obj = drm_gem_object_lookup(dev, file_priv, args->handle);
+ if (!obj) {
+ DRM_ERROR("failed to lookup gem object.\n");
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ exynos_gem_obj = to_exynos_gem_obj(obj);
+
+ args->flags = exynos_gem_obj->flags;
+ args->size = exynos_gem_obj->size;
+
+ drm_gem_object_unreference(obj);
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
+
int exynos_drm_gem_init_object(struct drm_gem_object *obj)
{
DRM_DEBUG_KMS("%s\n", __FILE__);