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VMap

kernel::drm::gem::shmem

Struct VMap 

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pub struct VMap<D, R, const SIZE: usize = 0>
where
    D: DriverObject,
    R: Deref<Target = Object<D>>,
{ /* private fields */ }
Expand description

A reference to a virtual mapping for an shmem-based GEM object in kernel address space.

§Invariants

  • The size of owner is >= SIZE.
  • The memory pointed to by addr remains valid at least until this object is dropped.

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impl<D, R, const SIZE: usize> VMap<D, R, SIZE>
where D: DriverObject, R: Deref<Target = Object<D>>,

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pub fn owner(&self) -> &Object<D>

Borrows a reference to the object that owns this virtual mapping.

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impl<D, R, const SIZE: usize> Drop for VMap<D, R, SIZE>
where D: DriverObject, R: Deref<Target = Object<D>>,

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fn drop(&mut self)

Executes the destructor for this type. Read more
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fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)
Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned. Read more
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impl<'a, D, R, const SIZE: usize> IoBase<'a> for &'a VMap<D, R, SIZE>
where D: DriverObject, R: Deref<Target = Object<D>>,

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type Backend = SysMemBackend

Type that defines all I/O operations.
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type Target = Region<SIZE>

Type of this I/O region. For untyped regions, Region can be used.
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fn as_view(self) -> SysMem<'a, Region<SIZE>>

Return a view that covers the full region.
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impl<D, R, const SIZE: usize> Send for VMap<D, R, SIZE>
where D: DriverObject, R: Deref<Target = Object<D>> + Send,

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impl<D, R, const SIZE: usize> Sync for VMap<D, R, SIZE>
where D: DriverObject, R: Deref<Target = Object<D>> + Sync,

Auto Trait Implementations§

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impl<D, R, const SIZE: usize> Freeze for VMap<D, R, SIZE>
where R: Freeze,

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impl<D, R, const SIZE: usize> RefUnwindSafe for VMap<D, R, SIZE>
where R: RefUnwindSafe,

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impl<D, R, const SIZE: usize> Unpin for VMap<D, R, SIZE>
where R: Unpin,

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impl<D, R, const SIZE: usize> UnsafeUnpin for VMap<D, R, SIZE>
where R: UnsafeUnpin,

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impl<D, R, const SIZE: usize> UnwindSafe for VMap<D, R, SIZE>
where R: UnwindSafe,

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Init<T> for T

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unsafe fn __init(self, slot: *mut T) -> Result<(), Infallible>

Initializes slot. Read more
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fn chain<F>(self, f: F) -> ChainInit<Self, F, T, E>
where F: FnOnce(&mut T) -> Result<(), E>,

First initializes the value using self then calls the function f with the initialized value. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> KnownSize for T

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const MIN_SIZE: usize = const MIN_SIZE: usize = size_of::<T>();

Minimum size of this type known at compile-time.
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const MIN_ALIGN: Alignment = const MIN_ALIGN: Alignment = Alignment::of::<T>();

Minimum alignment of this type known at compile-time.
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fn size(_: *const T) -> usize

Get the size of an object of this type in bytes, with the metadata of the given pointer.
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impl<T> PinInit<T> for T

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unsafe fn __pinned_init(self, slot: *mut T) -> Result<(), Infallible>

Initializes slot. Read more
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fn pin_chain<F>(self, f: F) -> ChainPinInit<Self, F, T, E>
where F: FnOnce(Pin<&mut T>) -> Result<(), E>,

First initializes the value using self then calls the function f with the initialized value. Read more
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impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T, U, const N: u32> TryIntoBounded<T, N> for U
where T: Integer, U: TryInto<T>,

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fn try_into_bounded(self) -> Option<Bounded<T, N>>

Attempts to convert self into a Bounded using N bits. Read more