1 // SPDX-License-Identifier: GPL-2.0
2 
3 use kernel::{auxiliary, bindings, c_str, device::Core, pci, prelude::*};
4 
5 use crate::gpu::Gpu;
6 
7 #[pin_data]
8 pub(crate) struct NovaCore {
9     #[pin]
10     pub(crate) gpu: Gpu,
11     _reg: auxiliary::Registration,
12 }
13 
14 const BAR0_SIZE: usize = 8;
15 pub(crate) type Bar0 = pci::Bar<BAR0_SIZE>;
16 
17 kernel::pci_device_table!(
18     PCI_TABLE,
19     MODULE_PCI_TABLE,
20     <NovaCore as pci::Driver>::IdInfo,
21     [(
22         pci::DeviceId::from_id(bindings::PCI_VENDOR_ID_NVIDIA, bindings::PCI_ANY_ID as _),
23         ()
24     )]
25 );
26 
27 impl pci::Driver for NovaCore {
28     type IdInfo = ();
29     const ID_TABLE: pci::IdTable<Self::IdInfo> = &PCI_TABLE;
30 
31     fn probe(pdev: &pci::Device<Core>, _info: &Self::IdInfo) -> Result<Pin<KBox<Self>>> {
32         dev_dbg!(pdev.as_ref(), "Probe Nova Core GPU driver.\n");
33 
34         pdev.enable_device_mem()?;
35         pdev.set_master();
36 
37         let bar = pdev.iomap_region_sized::<BAR0_SIZE>(0, c_str!("nova-core/bar0"))?;
38 
39         let this = KBox::pin_init(
40             try_pin_init!(Self {
41                 gpu <- Gpu::new(pdev, bar)?,
42                 _reg: auxiliary::Registration::new(
43                     pdev.as_ref(),
44                     c_str!("nova-drm"),
45                     0, // TODO: Once it lands, use XArray; for now we don't use the ID.
46                     crate::MODULE_NAME
47                 )?,
48             }),
49             GFP_KERNEL,
50         )?;
51 
52         Ok(this)
53     }
54 }
55