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// SPDX-License-Identifier: GPL-2.0
use kernel::{
bindings, c_str, drm,
drm::{drv, ioctl},
pci,
prelude::*,
sync::Arc,
types::ARef,
};
use crate::{file::File, gpu::Gpu};
pub(crate) struct NovaDriver(ARef<NovaDevice>);
/// Convienence type alias for the DRM device type for this driver
pub(crate) type NovaDevice = drm::device::Device<NovaDriver>;
#[allow(dead_code)]
#[pin_data]
pub(crate) struct NovaData {
#[pin]
pub(crate) gpu: Gpu,
pub(crate) pdev: pci::Device,
}
const BAR0_SIZE: usize = 8;
pub(crate) type Bar0 = pci::Bar<BAR0_SIZE>;
const INFO: drm::drv::DriverInfo = drm::drv::DriverInfo {
major: 0,
minor: 0,
patchlevel: 0,
name: c_str!("nova"),
desc: c_str!("Nvidia Graphics"),
date: c_str!("20240227"),
};
kernel::pci_device_table!(
PCI_TABLE,
MODULE_PCI_TABLE,
<NovaDriver as pci::Driver>::IdInfo,
[(
pci::DeviceId::new(bindings::PCI_VENDOR_ID_NVIDIA, bindings::PCI_ANY_ID as _),
()
)]
);
impl pci::Driver for NovaDriver {
type IdInfo = ();
const ID_TABLE: pci::IdTable<Self::IdInfo> = &PCI_TABLE;
fn probe(
pdev: &mut pci::Device,
_id: &pci::DeviceId,
_info: &Self::IdInfo,
) -> Result<Pin<KBox<Self>>> {
dev_dbg!(pdev.as_ref(), "Probe Nova GPU driver.\n");
pdev.enable_device_mem()?;
pdev.set_master();
let bar = pdev.iomap_region_sized::<BAR0_SIZE>(0, c_str!("nova"))?;
let p = pdev.clone();
let data = Arc::pin_init(
try_pin_init!(NovaData {
gpu <- Gpu::new(&p, bar)?,
pdev: p,
}),
GFP_KERNEL,
)?;
let drm = drm::device::Device::<NovaDriver>::new(pdev.as_ref(), data.clone())?;
drm::drv::Registration::new_foreign_owned(drm.clone(), 0)?;
Ok(KBox::new(Self(drm), GFP_KERNEL)?.into())
}
}
impl Drop for NovaDriver {
fn drop(&mut self) {
let data = self.0.data();
dev_dbg!(data.pdev.as_ref(), "Remove Nova GPU driver.\n");
}
}
#[vtable]
impl drm::drv::Driver for NovaDriver {
type Data = Arc<NovaData>;
type File = File;
type Object = crate::gem::Object;
const INFO: drm::drv::DriverInfo = INFO;
const FEATURES: u32 = drv::FEAT_GEM;
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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