Struct DmaAllocHandle 

pub struct DmaAllocHandle { /* private fields */ }

Implementations

impl DmaAllocHandle

pub unsafe fn new( cpu_addr: NonNull<u8>, allocation_addr: NonNull<u8>, dma_addr: DmaAddr, layout: Layout, ) -> Self

Creates a handle from its CPU-visible and allocator-owned addresses.

Safety

cpu_addr and allocation_addr must refer to the same live physical allocation described by layout. cpu_addr must remain the only CPU mapping exposed to the allocation owner until deallocation, and dma_addr must be the device-visible address for those pages.

pub fn size(&self) -> usize

pub fn align(&self) -> usize

pub fn as_ptr(&self) -> NonNull<u8>

pub fn allocation_ptr(&self) -> NonNull<u8>

Returns the allocator-owned address required by the DMA backend when releasing this handle.

pub fn dma_addr(&self) -> DmaAddr

pub fn layout(&self) -> Layout

Trait Implementations

impl Clone for DmaAllocHandle

fn clone(&self) -> DmaAllocHandle

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for DmaAllocHandle

impl Debug for DmaAllocHandle

fn fmt(&self, __derive_more_f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for DmaAllocHandle

impl Hash for DmaAllocHandle

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for DmaAllocHandle

fn eq(&self, other: &DmaAllocHandle) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for DmaAllocHandle