Commit e041d81a authored by Danilo Krummrich's avatar Danilo Krummrich
Browse files

gpu: nova-core: register auxiliary device for nova-drm 



Register an auxiliary device for nova-drm.

For now always use zero for the auxiliary device's ID; we don't use it
yet anyways. However, once it lands, we should switch to XArray.

Acked-by: default avatarDave Airlie <airlied@redhat.com>
Link: https://lore.kernel.org/r/20250424160452.8070-2-dakr@kernel.org


Signed-off-by: default avatarDanilo Krummrich <dakr@kernel.org>
parent 42055939

drivers/gpu/nova-core/Kconfig

+1 −0
Original line number Diff line number Diff line 
config NOVA_CORE

	tristate "Nova Core GPU driver"

	depends on AUXILIARY_BUS

	depends on PCI

	depends on RUST

	depends on RUST_FW_LOADER_ABSTRACTIONS

drivers/gpu/nova-core/driver.rs

+8 −1
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0



use kernel::{bindings, c_str, device::Core, pci, prelude::*};

use kernel::{auxiliary, bindings, c_str, device::Core, pci, prelude::*};



use crate::gpu::Gpu;
@@ -8,6 +8,7 @@ 
pub(crate) struct NovaCore {

    #[pin]

    pub(crate) gpu: Gpu,

    _reg: auxiliary::Registration,

}



const BAR0_SIZE: usize = 8;
@@ -38,6 +39,12 @@ fn probe(pdev: &pci::Device<Core>, _info: &Self::IdInfo) -> Result<Pin<KBox<Self 
        let this = KBox::pin_init(

            try_pin_init!(Self {

                gpu <- Gpu::new(pdev, bar)?,

                _reg: auxiliary::Registration::new(

                    pdev.as_ref(),

                    c_str!("nova-drm"),

                    0, // TODO: Once it lands, use XArray; for now we don't use the ID.

                    crate::MODULE_NAME

                )?,

            }),

            GFP_KERNEL,

        )?;

drivers/gpu/nova-core/nova_core.rs

+2 −0
Original line number Diff line number Diff line
@@ -8,6 +8,8 @@ 
mod regs;

mod util;



pub(crate) const MODULE_NAME: &kernel::str::CStr = <LocalModule as kernel::ModuleMetadata>::NAME;



kernel::module_pci_driver! {

    type: driver::NovaCore,

    name: "NovaCore",