// SPDX-License-Identifier: GPL-2.0 use crate::driver::{NovaDevice, NovaDriver};use crate::gem::NovaObject;use kernel::{ alloc::flags::*, auxiliary, device::Bound, drm::{ self, gem::BaseObject, Registered, // }, pci, prelude::*, uapi,}; pub(crate) struct File; impl drm::file::DriverFile for File { type Driver = NovaDriver; fn open(_dev: &NovaDevice) -> Result<Pin<KBox<Self>>> { Ok(KBox::new(Self, GFP_KERNEL)?.into()) }} impl File { /// IOCTL: get_param: Query GPU / driver metadata. pub(crate) fn get_param( dev: &NovaDevice<Registered>, _reg_data: &(), getparam: &mut uapi::drm_nova_getparam, _file: &drm::File<File>, ) -> Result<u32> { let adev: &auxiliary::Device<Bound> = dev.as_ref(); let pdev: &pci::Device<Bound> = adev.parent().try_into()?; let value = match getparam.param as u32 { uapi::NOVA_GETPARAM_VRAM_BAR_SIZE => pdev.resource_len(1)?, _ => return Err(EINVAL), }; getparam.value = Into::<u64>::into(value); Ok(0) } /// IOCTL: gem_create: Create a new DRM GEM object. pub(crate) fn gem_create( dev: &NovaDevice<Registered>, _reg_data: &(), req: &mut uapi::drm_nova_gem_create, file: &drm::File<File>, ) -> Result<u32> { let obj = NovaObject::new(dev, req.size.try_into()?)?; req.handle = obj.create_handle(file)?; Ok(0) } /// IOCTL: gem_info: Query GEM metadata. pub(crate) fn gem_info( _dev: &NovaDevice<Registered>, _reg_data: &(), req: &mut uapi::drm_nova_gem_info, file: &drm::File<File>, ) -> Result<u32> { let bo = NovaObject::lookup_handle(file, req.handle)?; req.size = bo.size().try_into()?; Ok(0) }}
// SPDX-License-Identifier: GPL-2.0
use crate::driver::{NovaDevice, NovaDriver};
use crate::gem::NovaObject;
use kernel::{
alloc::flags::*,
auxiliary,
device::Bound,
drm::{
self,
gem::BaseObject,
Registered, //
},
pci,
prelude::*,
uapi,
};
pub(crate) struct File;
impl drm::file::DriverFile for File {
type Driver = NovaDriver;
fn open(_dev: &NovaDevice) -> Result<Pin<KBox<Self>>> {
Ok(KBox::new(Self, GFP_KERNEL)?.into())
}
}
impl File {
/// IOCTL: get_param: Query GPU / driver metadata.
pub(crate) fn get_param(
dev: &NovaDevice<Registered>,
_reg_data: &(),
getparam: &mut uapi::drm_nova_getparam,
_file: &drm::File<File>,
) -> Result<u32> {
let adev: &auxiliary::Device<Bound> = dev.as_ref();
let pdev: &pci::Device<Bound> = adev.parent().try_into()?;
let value = match getparam.param as u32 {
uapi::NOVA_GETPARAM_VRAM_BAR_SIZE => pdev.resource_len(1)?,
_ => return Err(EINVAL),
};
getparam.value = Into::<u64>::into(value);
Ok(0)
}
/// IOCTL: gem_create: Create a new DRM GEM object.
pub(crate) fn gem_create(
dev: &NovaDevice<Registered>,
_reg_data: &(),
req: &mut uapi::drm_nova_gem_create,
file: &drm::File<File>,
) -> Result<u32> {
let obj = NovaObject::new(dev, req.size.try_into()?)?;
req.handle = obj.create_handle(file)?;
Ok(0)
}
/// IOCTL: gem_info: Query GEM metadata.
pub(crate) fn gem_info(
_dev: &NovaDevice<Registered>,
_reg_data: &(),
req: &mut uapi::drm_nova_gem_info,
file: &drm::File<File>,
) -> Result<u32> {
let bo = NovaObject::lookup_handle(file, req.handle)?;
req.size = bo.size().try_into()?;
Ok(0)
}
}