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// SPDX-License-Identifier: GPL-2.0
use kernel::{
drm,
drm::{gem, gem::BaseObject},
prelude::*,
types::ARef,
};
use crate::{
driver::{NovaDevice, NovaDriver},
file::File,
};
/// GEM Object inner driver data
#[pin_data]
pub(crate) struct NovaObject {}
impl gem::BaseDriverObject<gem::Object<NovaObject>> for NovaObject {
fn new(_dev: &NovaDevice, _size: usize) -> impl PinInit<Self, Error> {
try_pin_init!(NovaObject {})
}
}
impl gem::DriverObject for NovaObject {
type Driver = NovaDriver;
}
impl NovaObject {
/// Create a new DRM GEM object.
pub(crate) fn new(dev: &NovaDevice, size: usize) -> Result<ARef<gem::Object<Self>>> {
let aligned_size = size.next_multiple_of(1 << 12);
if size == 0 || size > aligned_size {
return Err(EINVAL);
}
gem::Object::new(dev, aligned_size)
}
/// Look up a GEM object handle for a `File` and return an `ObjectRef` for it.
#[inline]
pub(crate) fn lookup_handle(
file: &drm::File<File>,
handle: u32,
) -> Result<ARef<gem::Object<Self>>> {
gem::Object::lookup_handle(file, handle)
}
}
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