1 // SPDX-License-Identifier: GPL-2.0 2 3 use kernel::{ 4 auxiliary, c_str, 5 device::Core, 6 pci, 7 pci::{Class, ClassMask, Vendor}, 8 prelude::*, 9 sizes::SZ_16M, 10 sync::Arc, 11 }; 12 13 use crate::gpu::Gpu; 14 15 #[pin_data] 16 pub(crate) struct NovaCore { 17 #[pin] 18 pub(crate) gpu: Gpu, 19 _reg: auxiliary::Registration, 20 } 21 22 const BAR0_SIZE: usize = SZ_16M; 23 pub(crate) type Bar0 = pci::Bar<BAR0_SIZE>; 24 25 kernel::pci_device_table!( 26 PCI_TABLE, 27 MODULE_PCI_TABLE, 28 <NovaCore as pci::Driver>::IdInfo, 29 [ 30 // Modern NVIDIA GPUs will show up as either VGA or 3D controllers. 31 ( 32 pci::DeviceId::from_class_and_vendor( 33 Class::DISPLAY_VGA, 34 ClassMask::ClassSubclass, 35 Vendor::NVIDIA 36 ), 37 () 38 ), 39 ( 40 pci::DeviceId::from_class_and_vendor( 41 Class::DISPLAY_3D, 42 ClassMask::ClassSubclass, 43 Vendor::NVIDIA 44 ), 45 () 46 ), 47 ] 48 ); 49 50 impl pci::Driver for NovaCore { 51 type IdInfo = (); 52 const ID_TABLE: pci::IdTable<Self::IdInfo> = &PCI_TABLE; 53 54 fn probe(pdev: &pci::Device<Core>, _info: &Self::IdInfo) -> impl PinInit<Self, Error> { 55 pin_init::pin_init_scope(move || { 56 dev_dbg!(pdev.as_ref(), "Probe Nova Core GPU driver.\n"); 57 58 pdev.enable_device_mem()?; 59 pdev.set_master(); 60 61 let bar = Arc::pin_init( 62 pdev.iomap_region_sized::<BAR0_SIZE>(0, c_str!("nova-core/bar0")), 63 GFP_KERNEL, 64 )?; 65 66 Ok(try_pin_init!(Self { 67 gpu <- Gpu::new(pdev, bar.clone(), bar.access(pdev.as_ref())?), 68 _reg: auxiliary::Registration::new( 69 pdev.as_ref(), 70 c_str!("nova-drm"), 71 0, // TODO[XARR]: Once it lands, use XArray; for now we don't use the ID. 72 crate::MODULE_NAME 73 )?, 74 })) 75 }) 76 } 77 78 fn unbind(pdev: &pci::Device<Core>, this: Pin<&Self>) { 79 this.gpu.unbind(pdev.as_ref()); 80 } 81 } 82