Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2
3use kernel::{
4 auxiliary, c_str, device::Core, drm, drm::gem, drm::ioctl, prelude::*, sync::aref::ARef,
5};
6
7use crate::file::File;
8use crate::gem::NovaObject;
9
10pub(crate) struct NovaDriver {
11 #[expect(unused)]
12 drm: ARef<drm::Device<Self>>,
13}
14
15/// Convienence type alias for the DRM device type for this driver
16pub(crate) type NovaDevice = drm::Device<NovaDriver>;
17
18#[pin_data]
19pub(crate) struct NovaData {
20 pub(crate) adev: ARef<auxiliary::Device>,
21}
22
23const INFO: drm::DriverInfo = drm::DriverInfo {
24 major: 0,
25 minor: 0,
26 patchlevel: 0,
27 name: c_str!("nova"),
28 desc: c_str!("Nvidia Graphics"),
29};
30
31const NOVA_CORE_MODULE_NAME: &CStr = c_str!("NovaCore");
32const AUXILIARY_NAME: &CStr = c_str!("nova-drm");
33
34kernel::auxiliary_device_table!(
35 AUX_TABLE,
36 MODULE_AUX_TABLE,
37 <NovaDriver as auxiliary::Driver>::IdInfo,
38 [(
39 auxiliary::DeviceId::new(NOVA_CORE_MODULE_NAME, AUXILIARY_NAME),
40 ()
41 )]
42);
43
44impl auxiliary::Driver for NovaDriver {
45 type IdInfo = ();
46 const ID_TABLE: auxiliary::IdTable<Self::IdInfo> = &AUX_TABLE;
47
48 fn probe(adev: &auxiliary::Device<Core>, _info: &Self::IdInfo) -> impl PinInit<Self, Error> {
49 let data = try_pin_init!(NovaData { adev: adev.into() });
50
51 let drm = drm::Device::<Self>::new(adev.as_ref(), data)?;
52 drm::Registration::new_foreign_owned(&drm, adev.as_ref(), 0)?;
53
54 Ok(Self { drm })
55 }
56}
57
58#[vtable]
59impl drm::Driver for NovaDriver {
60 type Data = NovaData;
61 type File = File;
62 type Object = gem::Object<NovaObject>;
63
64 const INFO: drm::DriverInfo = INFO;
65
66 kernel::declare_drm_ioctls! {
67 (NOVA_GETPARAM, drm_nova_getparam, ioctl::RENDER_ALLOW, File::get_param),
68 (NOVA_GEM_CREATE, drm_nova_gem_create, ioctl::AUTH | ioctl::RENDER_ALLOW, File::gem_create),
69 (NOVA_GEM_INFO, drm_nova_gem_info, ioctl::AUTH | ioctl::RENDER_ALLOW, File::gem_info),
70 }
71}