1 files changed, 50 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nova/gem.rs b/drivers/gpu/drm/nova/gem.rs
new file mode 100644
index 000000000000..51bc30c226e2
--- /dev/null
+++ b/drivers/gpu/drm/nova/gem.rs
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+
+use kernel::{
+    drm::{
+        gem,
+        gem::{BaseObject, ObjectRef},
+    },
+    prelude::*,
+};
+
+use crate::{
+    driver::{NovaDevice, NovaDriver},
+    file::DrmFile,
+};
+
+/// GEM Object inner driver data
+#[pin_data]
+pub(crate) struct DriverObject {}
+
+/// Type alias for the GEM object tyoe for this driver.
+pub(crate) type Object = gem::Object<DriverObject>;
+
+impl gem::BaseDriverObject<Object> for DriverObject {
+    fn new(dev: &NovaDevice, _size: usize) -> impl PinInit<Self, Error> {
+        dev_dbg!(dev.as_ref(), "DriverObject::new\n");
+        DriverObject {}
+    }
+}
+
+impl gem::DriverObject for DriverObject {
+    type Driver = NovaDriver;
+}
+
+/// Create a new DRM GEM object.
+pub(crate) fn object_new(dev: &NovaDevice, size: usize) -> Result<ObjectRef<Object>> {
+    let aligned_size = size.next_multiple_of(1 << 12);
+
+    if size == 0 || size > aligned_size {
+        return Err(EINVAL);
+    }
+
+    let gem = Object::new(dev, aligned_size)?;
+
+    Ok(ObjectRef::from_pinned_unique(gem))
+}
+
+/// Look up a GEM object handle for a `File` and return an `ObjectRef` for it.
+pub(crate) fn lookup_handle(file: &DrmFile, handle: u32) -> Result<ObjectRef<Object>> {
+    Object::lookup_handle(file, handle)
+}