| 1 | |
| 2 |
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| 3 | use kernel::{
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| 4 | drm,
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| 5 | drm::{
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| 6 | gem,
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| 7 | gem::BaseObject, |
| 8 | },
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| 9 | page,
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| 10 | prelude::*,
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| 11 | sync::aref::ARef,
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| 12 | };
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| 13 |
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| 14 | use crate::{
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| 15 | driver::{NovaDevice, NovaDriver},
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| 16 | file::File,
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| 17 | };
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| 18 |
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| 19 | |
| 20 | #[pin_data]
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| 21 | pub(crate) struct NovaObject {}
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| 22 |
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| 23 | impl gem::DriverObject for NovaObject {
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| 24 | type Driver = NovaDriver;
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| 25 | type Args = ();
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| 26 |
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| 27 | fn new(_dev: &NovaDevice, _size: usize, _args: Self::Args) -> impl PinInit<Self, Error> {
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| 28 | try_pin_init!(NovaObject {})
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| 29 | }
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| 30 | }
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| 31 |
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| 32 | impl NovaObject {
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| 33 | |
| 34 | pub(crate) fn new(dev: &NovaDevice, size: usize) -> Result<ARef<gem::Object<Self>>> {
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| 35 | if size == 0 {
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| 36 | return Err(EINVAL);
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| 37 | }
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| 38 | let aligned_size = page::page_align(size).ok_or(EINVAL)?;
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| 39 |
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| 40 | gem::Object::<Self>::new(dev, aligned_size, ())
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| 41 | }
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| 42 |
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| 43 | |
| 44 | #[inline]
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| 45 | pub(crate) fn lookup_handle(
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| 46 | file: &drm::File<File>,
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| 47 | handle: u32,
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| 48 | ) -> Result<ARef<gem::Object<Self>>> {
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| 49 | gem::Object::lookup_handle(file, handle)
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| 50 | }
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| 51 | }
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