Enum DmaCoherency 

pub enum DmaCoherency {
    Coherent,
    NonCoherent,
    WriteCombining,
}

DMA coherency policy for buffer allocation.

Variants

Coherent

Hardware maintains cache coherency (default on x86).

NonCoherent

Software must explicitly manage cache flushes.

WriteCombining

Write-combining: optimized for sequential writes (framebuffers).

Trait Implementations

impl Clone for DmaCoherency

fn clone(&self) -> DmaCoherency

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DmaCoherency

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

Formats the value using the given formatter.

impl PartialEq for DmaCoherency

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for DmaCoherency

impl Eq for DmaCoherency

impl StructuralPartialEq for DmaCoherency