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// SPDX-License-Identifier: GPL-2.0
use kernel::{auxiliary, c_str, device::Core, drm, drm::gem, drm::ioctl, prelude::*, types::ARef};
use crate::file::File;
use crate::gem::NovaObject;
pub(crate) struct NovaDriver {
#[expect(unused)]
drm: ARef<drm::Device<Self>>,
}
/// Convienence type alias for the DRM device type for this driver
pub(crate) type NovaDevice = drm::Device<NovaDriver>;
#[pin_data]
pub(crate) struct NovaData {
pub(crate) adev: ARef<auxiliary::Device>,
}
const INFO: drm::DriverInfo = drm::DriverInfo {
major: 0,
minor: 0,
patchlevel: 0,
name: c_str!("nova"),
desc: c_str!("Nvidia Graphics"),
};
const NOVA_CORE_MODULE_NAME: &CStr = c_str!("NovaCore");
const AUXILIARY_NAME: &CStr = c_str!("nova-drm");
kernel::auxiliary_device_table!(
AUX_TABLE,
MODULE_AUX_TABLE,
<NovaDriver as auxiliary::Driver>::IdInfo,
[(
auxiliary::DeviceId::new(NOVA_CORE_MODULE_NAME, AUXILIARY_NAME),
()
)]
);
impl auxiliary::Driver for NovaDriver {
type IdInfo = ();
const ID_TABLE: auxiliary::IdTable<Self::IdInfo> = &AUX_TABLE;
fn probe(adev: &auxiliary::Device<Core>, _info: &Self::IdInfo) -> Result<Pin<KBox<Self>>> {
let data = try_pin_init!(NovaData { adev: adev.into() });
let drm = drm::Device::<Self>::new(adev.as_ref(), data)?;
drm::Registration::new_foreign_owned(&drm, adev.as_ref(), 0)?;
Ok(KBox::new(Self { drm }, GFP_KERNEL)?.into())
}
}
#[vtable]
impl drm::Driver for NovaDriver {
type Data = NovaData;
type File = File;
type Object = gem::Object<NovaObject>;
const INFO: drm::DriverInfo = INFO;
kernel::declare_drm_ioctls! {
(NOVA_GETPARAM, drm_nova_getparam, ioctl::RENDER_ALLOW, File::get_param),
(NOVA_GEM_CREATE, drm_nova_gem_create, ioctl::AUTH | ioctl::RENDER_ALLOW, File::gem_create),
(NOVA_GEM_INFO, drm_nova_gem_info, ioctl::AUTH | ioctl::RENDER_ALLOW, File::gem_info),
}
}
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