Struct acpi::handler::PhysicalMapping

pub struct PhysicalMapping<H, T>where
    H: AcpiHandler,{ /* private fields */ }

Describes a physical mapping created by AcpiHandler::map_physical_region and unmapped by AcpiHandler::unmap_physical_region. The region mapped must be at least size_of::<T>() bytes, but may be bigger.

See PhysicalMapping::new for the meaning of each field.

Implementations

impl<H, T> PhysicalMapping<H, T>where H: AcpiHandler,

pub unsafe fn new( physical_start: usize, virtual_start: NonNull<T>, region_length: usize, mapped_length: usize, handler: H ) -> Self

Construct a new PhysicalMapping.

• physical_start should be the physical address of the structure to be mapped.
• virtual_start should be the corresponding virtual address of that structure. It may differ from the start of the region mapped due to requirements of the paging system. It must be a valid, non-null pointer.
• region_length should be the number of bytes requested to be mapped. It must be equal to or larger than size_of::<T>().
• mapped_length should be the number of bytes mapped to fulfill the request. It may be equal to or larger than region_length, due to requirements of the paging system or other reasoning.
• handler should be the same AcpiHandler that created the mapping. When the PhysicalMapping is dropped, it will be used to unmap the structure.

pub fn physical_start(&self) -> usize

pub fn virtual_start(&self) -> NonNull<T>

pub fn region_length(&self) -> usize

pub fn mapped_length(&self) -> usize

pub fn handler(&self) -> &H

Trait Implementations

impl<H, T: Debug> Debug for PhysicalMapping<H, T>where H: AcpiHandler + Debug,

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

Formats the value using the given formatter.

impl<H, T> Deref for PhysicalMapping<H, T>where H: AcpiHandler,

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.

impl<H, T> Drop for PhysicalMapping<H, T>where H: AcpiHandler,

fn drop(&mut self)

Executes the destructor for this type.

impl<H: AcpiHandler + Send, T: Send> Send for PhysicalMapping<H, T>