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KernelDma

strat9_kernel::hardware::nic::common

Struct KernelDma 

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pub struct KernelDma;
Expand description

Kernel-side DMA allocator backed by the physical buddy allocator.

Trait Implementations§

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impl DmaAllocator for KernelDma

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fn alloc_dma(&self, size: usize) -> Result<DmaRegion, DmaAllocError>

Allocates a physically contiguous DMA region of at least size bytes.

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unsafe fn free_dma(&self, region: DmaRegion)

Releases a previously allocated DMA region back to the buddy allocator.

§Safety

The caller must ensure that region was previously allocated by this allocator and has not already been freed.

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impl<T> Any for T
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fn borrow_mut(&mut self) -> &mut T

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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
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